Merge tag 'ib-srpt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Tue, 7 Feb 2012 22:35:19 +0000 (14:35 -0800)]
Cleanups and error path fixes for the new SRP (SCSI RDMA protocol) target.

* tag 'ib-srpt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/srpt: Don't return freed pointer from srpt_alloc_ioctx_ring()
  IB/srpt: Fix ERR_PTR() vs. NULL checking confusion
  IB/srpt: Remove unneeded <linux/version.h> include
  IB/srpt: Use ARRAY_SIZE() instead of open-coding
  IB/srpt: Use DEFINE_SPINLOCK()/LIST_HEAD()

170 files changed:
Documentation/DocBook/device-drivers.tmpl
Documentation/input/event-codes.txt
Documentation/sysctl/kernel.txt
MAINTAINERS
arch/arm/include/asm/tlb.h
arch/arm/kernel/entry-armv.S
arch/arm/kernel/perf_event_v7.c
arch/arm/kernel/ptrace.c
arch/arm/kernel/signal.c
arch/arm/mach-bcmring/arch.c
arch/arm/mach-bcmring/dma.c
arch/arm/mach-bcmring/include/mach/dma.h
arch/arm/mach-davinci/board-da850-evm.c
arch/arm/mach-davinci/board-dm365-evm.c
arch/arm/mach-davinci/board-dm644x-evm.c
arch/arm/mach-davinci/board-dm646x-evm.c
arch/arm/mach-davinci/board-neuros-osd2.c
arch/arm/mach-davinci/board-omapl138-hawk.c
arch/arm/mach-davinci/board-sffsdr.c
arch/arm/mach-davinci/da850.c
arch/arm/mach-omap2/Kconfig
arch/arm/mach-omap2/devices.c
arch/arm/mach-omap2/gpmc.c
arch/arm/mach-omap2/hsmmc.c
arch/arm/mach-omap2/io.c
arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c
arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
arch/arm/mach-omap2/prm2xxx_3xxx.c
arch/arm/mach-omap2/smartreflex.c
arch/arm/mach-omap2/timer.c
arch/arm/mach-shmobile/setup-sh7372.c
arch/arm/mm/ioremap.c
arch/avr32/Kconfig
arch/microblaze/kernel/setup.c
arch/mips/Kconfig
arch/mips/lib/iomap-pci.c
arch/sh/Kconfig
arch/sh/drivers/pci/pci.c
arch/sparc/Kconfig
arch/sparc/lib/divdi3.S
arch/x86/include/asm/cmpxchg.h
arch/x86/include/asm/kvm_emulate.h
arch/x86/kernel/dumpstack.c
arch/x86/kernel/dumpstack_64.c
arch/x86/kernel/reboot.c
arch/x86/kvm/emulate.c
arch/x86/kvm/x86.c
arch/x86/mm/fault.c
arch/xtensa/include/asm/string.h
drivers/acpi/processor_driver.c
drivers/block/rbd.c
drivers/dma/at_hdmac.c
drivers/dma/at_hdmac_regs.h
drivers/dma/dmatest.c
drivers/dma/imx-sdma.c
drivers/dma/shdma.c
drivers/firewire/ohci.c
drivers/gpio/gpio-lpc32xx.c
drivers/gpio/gpio-ml-ioh.c
drivers/gpio/gpio-pch.c
drivers/gpio/gpio-samsung.c
drivers/gpu/drm/nouveau/nouveau_bios.h
drivers/gpu/drm/nouveau/nouveau_display.c
drivers/gpu/drm/nouveau/nouveau_drv.c
drivers/gpu/drm/nouveau/nouveau_gem.c
drivers/gpu/drm/nouveau/nouveau_mxm.c
drivers/gpu/drm/nouveau/nv50_pm.c
drivers/gpu/drm/radeon/atombios_crtc.c
drivers/gpu/drm/radeon/atombios_dp.c
drivers/gpu/drm/radeon/r600_blit_kms.c
drivers/gpu/drm/radeon/radeon_atpx_handler.c
drivers/gpu/drm/radeon/radeon_device.c
drivers/gpu/drm/radeon/radeon_i2c.c
drivers/hid/hid-hyperv.c
drivers/hid/hid-wacom.c
drivers/hid/hid-wiimote-core.c
drivers/hid/usbhid/hiddev.c
drivers/hwmon/w83627ehf.c
drivers/i2c/busses/i2c-omap.c
drivers/input/evdev.c
drivers/input/keyboard/twl4030_keypad.c
drivers/input/serio/i8042-x86ia64io.h
drivers/input/serio/serio_raw.c
drivers/mfd/twl6040-core.c
drivers/misc/lkdtm.c
drivers/mtd/mtdcore.c
drivers/mtd/nand/atmel_nand.c
drivers/mtd/nand/gpmi-nand/gpmi-lib.c
drivers/mtd/nand/nand_base.c
drivers/staging/media/go7007/go7007-usb.c
drivers/tty/vt/vt_ioctl.c
fs/ceph/caps.c
fs/ceph/dir.c
fs/ceph/mds_client.c
fs/ceph/mds_client.h
fs/ceph/xattr.c
fs/cifs/Kconfig
fs/cifs/connect.c
fs/cifs/sess.c
fs/exec.c
fs/jffs2/erase.c
fs/proc/base.c
include/asm-generic/pci_iomap.h
include/linux/binfmts.h
include/linux/gpio_keys.h
include/linux/lp8727.h [changed mode: 0755->0644]
include/linux/mfd/twl6040.h
include/linux/mpi.h
include/linux/mtd/mtd.h
include/linux/perf_event.h
include/linux/pm_qos.h
include/linux/sched.h
include/linux/sh_dma.h
include/sound/core.h
kernel/events/core.c
kernel/exit.c
kernel/fork.c
kernel/kprobes.c
kernel/power/power.h
kernel/power/process.c
kernel/power/user.c
kernel/sched/core.c
kernel/sched/fair.c
kernel/sched/rt.c
kernel/watchdog.c
lib/Kconfig
lib/Makefile
lib/bug.c
lib/clz_tab.c [new file with mode: 0644]
lib/digsig.c
lib/mpi/longlong.h
lib/mpi/mpi-bit.c
lib/mpi/mpi-div.c
lib/mpi/mpi-pow.c
lib/mpi/mpicoder.c
lib/mpi/mpih-div.c
lib/mpi/mpiutil.c
lib/pci_iomap.c
mm/compaction.c
mm/filemap.c
mm/filemap_xip.c
mm/kmemleak.c
mm/memcontrol.c
mm/migrate.c
mm/process_vm_access.c
net/ceph/ceph_common.c
net/ceph/mon_client.c
sound/pci/hda/hda_codec.c
sound/pci/hda/hda_jack.c
sound/pci/hda/patch_cirrus.c
sound/pci/hda/patch_realtek.c
sound/pci/hda/patch_via.c
sound/soc/codecs/wm5100.c
sound/soc/codecs/wm8962.c
sound/soc/codecs/wm8996.c
sound/soc/codecs/wm_hubs.c
sound/soc/samsung/neo1973_wm8753.c
tools/perf/Makefile
tools/perf/builtin-probe.c
tools/perf/builtin-top.c
tools/perf/util/header.c
tools/perf/util/probe-event.c
tools/perf/util/symbol.c
tools/perf/util/trace-event-parse.c
tools/perf/util/ui/browsers/hists.c
tools/perf/util/ui/helpline.c
tools/perf/util/util.h
virt/kvm/kvm_main.c

index 2f7fd43..9c27e51 100644 (file)
@@ -102,9 +102,12 @@ X!Iinclude/linux/kobject.h
 !Iinclude/linux/device.h
      </sect1>
      <sect1><title>Device Drivers Base</title>
+!Idrivers/base/init.c
 !Edrivers/base/driver.c
 !Edrivers/base/core.c
+!Edrivers/base/syscore.c
 !Edrivers/base/class.c
+!Idrivers/base/node.c
 !Edrivers/base/firmware_class.c
 !Edrivers/base/transport_class.c
 <!-- Cannot be included, because
@@ -113,7 +116,7 @@ X!Iinclude/linux/kobject.h
      exceed allowed 44 characters maximum
 X!Edrivers/base/attribute_container.c
 -->
-!Edrivers/base/sys.c
+!Edrivers/base/dd.c
 <!--
 X!Edrivers/base/interface.c
 -->
@@ -121,6 +124,11 @@ X!Edrivers/base/interface.c
 !Edrivers/base/platform.c
 !Edrivers/base/bus.c
      </sect1>
+     <sect1><title>Device Drivers DMA Management</title>
+!Edrivers/base/dma-buf.c
+!Edrivers/base/dma-coherent.c
+!Edrivers/base/dma-mapping.c
+     </sect1>
      <sect1><title>Device Drivers Power Management</title>
 !Edrivers/base/power/main.c
      </sect1>
@@ -219,7 +227,7 @@ X!Isound/sound_firmware.c
   <chapter id="uart16x50">
      <title>16x50 UART Driver</title>
 !Edrivers/tty/serial/serial_core.c
-!Edrivers/tty/serial/8250.c
+!Edrivers/tty/serial/8250/8250.c
   </chapter>
 
   <chapter id="fbdev">
index 23fcb05..53305bd 100644 (file)
@@ -17,11 +17,11 @@ reports supported by a device are also provided by sysfs in
 class/input/event*/device/capabilities/, and the properties of a device are
 provided in class/input/event*/device/properties.
 
-Types:
-==========
-Types are groupings of codes under a logical input construct. Each type has a
-set of applicable codes to be used in generating events. See the Codes section
-for details on valid codes for each type.
+Event types:
+===========
+Event types are groupings of codes under a logical input construct. Each
+type has a set of applicable codes to be used in generating events. See the
+Codes section for details on valid codes for each type.
 
 * EV_SYN:
   - Used as markers to separate events. Events may be separated in time or in
@@ -63,9 +63,9 @@ for details on valid codes for each type.
 * EV_FF_STATUS:
   - Used to receive force feedback device status.
 
-Codes:
-==========
-Codes define the precise type of event.
+Event codes:
+===========
+Event codes define the precise type of event.
 
 EV_SYN:
 ----------
@@ -220,6 +220,56 @@ EV_PWR:
 EV_PWR events are a special type of event used specifically for power
 mangement. Its usage is not well defined. To be addressed later.
 
+Device properties:
+=================
+Normally, userspace sets up an input device based on the data it emits,
+i.e., the event types. In the case of two devices emitting the same event
+types, additional information can be provided in the form of device
+properties.
+
+INPUT_PROP_DIRECT + INPUT_PROP_POINTER:
+--------------------------------------
+The INPUT_PROP_DIRECT property indicates that device coordinates should be
+directly mapped to screen coordinates (not taking into account trivial
+transformations, such as scaling, flipping and rotating). Non-direct input
+devices require non-trivial transformation, such as absolute to relative
+transformation for touchpads. Typical direct input devices: touchscreens,
+drawing tablets; non-direct devices: touchpads, mice.
+
+The INPUT_PROP_POINTER property indicates that the device is not transposed
+on the screen and thus requires use of an on-screen pointer to trace user's
+movements.  Typical pointer devices: touchpads, tablets, mice; non-pointer
+device: touchscreen.
+
+If neither INPUT_PROP_DIRECT or INPUT_PROP_POINTER are set, the property is
+considered undefined and the device type should be deduced in the
+traditional way, using emitted event types.
+
+INPUT_PROP_BUTTONPAD:
+--------------------
+For touchpads where the button is placed beneath the surface, such that
+pressing down on the pad causes a button click, this property should be
+set. Common in clickpad notebooks and macbooks from 2009 and onwards.
+
+Originally, the buttonpad property was coded into the bcm5974 driver
+version field under the name integrated button. For backwards
+compatibility, both methods need to be checked in userspace.
+
+INPUT_PROP_SEMI_MT:
+------------------
+Some touchpads, most common between 2008 and 2011, can detect the presence
+of multiple contacts without resolving the individual positions; only the
+number of contacts and a rectangular shape is known. For such
+touchpads, the semi-mt property should be set.
+
+Depending on the device, the rectangle may enclose all touches, like a
+bounding box, or just some of them, for instance the two most recent
+touches. The diversity makes the rectangle of limited use, but some
+gestures can normally be extracted from it.
+
+If INPUT_PROP_SEMI_MT is not set, the device is assumed to be a true MT
+device.
+
 Guidelines:
 ==========
 The guidelines below ensure proper single-touch and multi-finger functionality.
@@ -240,6 +290,8 @@ used to report when a touch is active on the screen.
 BTN_{MOUSE,LEFT,MIDDLE,RIGHT} must not be reported as the result of touch
 contact. BTN_TOOL_<name> events should be reported where possible.
 
+For new hardware, INPUT_PROP_DIRECT should be set.
+
 Trackpads:
 ----------
 Legacy trackpads that only provide relative position information must report
@@ -250,6 +302,8 @@ location of the touch. BTN_TOUCH should be used to report when a touch is active
 on the trackpad. Where multi-finger support is available, BTN_TOOL_<name> should
 be used to report the number of touches active on the trackpad.
 
+For new hardware, INPUT_PROP_POINTER should be set.
+
 Tablets:
 ----------
 BTN_TOOL_<name> events must be reported when a stylus or other tool is active on
@@ -260,3 +314,5 @@ button may be used for buttons on the tablet except BTN_{MOUSE,LEFT}.
 BTN_{0,1,2,etc} are good generic codes for unlabeled buttons. Do not use
 meaningful buttons, like BTN_FORWARD, unless the button is labeled for that
 purpose on the device.
+
+For new hardware, both INPUT_PROP_DIRECT and INPUT_PROP_POINTER should be set.
index 8c20fbd..6d78841 100644 (file)
@@ -601,6 +601,8 @@ can be ORed together:
         instead of using the one provided by the hardware.
  512 - A kernel warning has occurred.
 1024 - A module from drivers/staging was loaded.
+2048 - The system is working around a severe firmware bug.
+4096 - An out-of-tree module has been loaded.
 
 ==============================================================
 
index 252972b..55ca0be 100644 (file)
@@ -789,12 +789,6 @@ F: arch/arm/mach-mx*/
 F:     arch/arm/mach-imx/
 F:     arch/arm/plat-mxc/
 
-ARM/FREESCALE IMX51
-M:     Amit Kucheria <amit.kucheria@canonical.com>
-L:     linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:     Maintained
-F:     arch/arm/mach-mx5/
-
 ARM/FREESCALE IMX6
 M:     Shawn Guo <shawn.guo@linaro.org>
 L:     linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -2287,7 +2281,7 @@ F:        drivers/acpi/dock.c
 DOCUMENTATION
 M:     Randy Dunlap <rdunlap@xenotime.net>
 L:     linux-doc@vger.kernel.org
-T:     quilt http://userweb.kernel.org/~rdunlap/kernel-doc-patches/current/
+T:     quilt http://xenotime.net/kernel-doc-patches/current/
 S:     Maintained
 F:     Documentation/
 
@@ -3992,11 +3986,11 @@ M:      Rusty Russell <rusty@rustcorp.com.au>
 L:     lguest@lists.ozlabs.org
 W:     http://lguest.ozlabs.org/
 S:     Odd Fixes
-F:     Documentation/virtual/lguest/
+F:     arch/x86/include/asm/lguest*.h
 F:     arch/x86/lguest/
 F:     drivers/lguest/
 F:     include/linux/lguest*.h
-F:     arch/x86/include/asm/lguest*.h
+F:     tools/lguest/
 
 LINUX FOR IBM pSERIES (RS/6000)
 M:     Paul Mackerras <paulus@au.ibm.com>
@@ -4136,7 +4130,7 @@ L:        linux-ntfs-dev@lists.sourceforge.net
 W:     http://www.linux-ntfs.org/content/view/19/37/
 S:     Maintained
 F:     Documentation/ldm.txt
-F:     fs/partitions/ldm.*
+F:     block/partitions/ldm.*
 
 LogFS
 M:     Joern Engel <joern@logfs.org>
@@ -5633,7 +5627,7 @@ W:        http://www.ibm.com/developerworks/linux/linux390/
 S:     Supported
 F:     arch/s390/
 F:     drivers/s390/
-F:     fs/partitions/ibm.c
+F:     block/partitions/ibm.c
 F:     Documentation/s390/
 F:     Documentation/DocBook/s390*
 
@@ -6396,11 +6390,6 @@ M:       Omar Ramirez Luna <omar.ramirez@ti.com>
 S:     Odd Fixes
 F:     drivers/staging/tidspbridge/
 
-STAGING - TRIDENT TVMASTER TMxxxx USB VIDEO CAPTURE DRIVERS
-L:     linux-media@vger.kernel.org
-S:     Odd Fixes
-F:     drivers/staging/tm6000/
-
 STAGING - USB ENE SM/MS CARD READER DRIVER
 M:     Al Cho <acho@novell.com>
 S:     Odd Fixes
index 5d3ed7e..314d466 100644 (file)
@@ -198,7 +198,15 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
        unsigned long addr)
 {
        pgtable_page_dtor(pte);
-       tlb_add_flush(tlb, addr);
+
+       /*
+        * With the classic ARM MMU, a pte page has two corresponding pmd
+        * entries, each covering 1MB.
+        */
+       addr &= PMD_MASK;
+       tlb_add_flush(tlb, addr + SZ_1M - PAGE_SIZE);
+       tlb_add_flush(tlb, addr + SZ_1M);
+
        tlb_remove_page(tlb, pte);
 }
 
index 3a456c6..be16a48 100644 (file)
@@ -790,7 +790,7 @@ __kuser_cmpxchg64:                          @ 0xffff0f60
        smp_dmb arm
        rsbs    r0, r3, #0                      @ set returned val and C flag
        ldmfd   sp!, {r4, r5, r6, r7}
-       bx      lr
+       usr_ret lr
 
 #elif !defined(CONFIG_SMP)
 
index 460bbbb..6933244 100644 (file)
@@ -469,6 +469,20 @@ static const unsigned armv7_a5_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
                        [C(RESULT_MISS)]        = CACHE_OP_UNSUPPORTED,
                },
        },
+       [C(NODE)] = {
+               [C(OP_READ)] = {
+                       [C(RESULT_ACCESS)]      = CACHE_OP_UNSUPPORTED,
+                       [C(RESULT_MISS)]        = CACHE_OP_UNSUPPORTED,
+               },
+               [C(OP_WRITE)] = {
+                       [C(RESULT_ACCESS)]      = CACHE_OP_UNSUPPORTED,
+                       [C(RESULT_MISS)]        = CACHE_OP_UNSUPPORTED,
+               },
+               [C(OP_PREFETCH)] = {
+                       [C(RESULT_ACCESS)]      = CACHE_OP_UNSUPPORTED,
+                       [C(RESULT_MISS)]        = CACHE_OP_UNSUPPORTED,
+               },
+       },
 };
 
 /*
@@ -579,6 +593,20 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
                        [C(RESULT_MISS)]        = CACHE_OP_UNSUPPORTED,
                },
        },
+       [C(NODE)] = {
+               [C(OP_READ)] = {
+                       [C(RESULT_ACCESS)]      = CACHE_OP_UNSUPPORTED,
+                       [C(RESULT_MISS)]        = CACHE_OP_UNSUPPORTED,
+               },
+               [C(OP_WRITE)] = {
+                       [C(RESULT_ACCESS)]      = CACHE_OP_UNSUPPORTED,
+                       [C(RESULT_MISS)]        = CACHE_OP_UNSUPPORTED,
+               },
+               [C(OP_PREFETCH)] = {
+                       [C(RESULT_ACCESS)]      = CACHE_OP_UNSUPPORTED,
+                       [C(RESULT_MISS)]        = CACHE_OP_UNSUPPORTED,
+               },
+       },
 };
 
 /*
index e1d5e19..e33870f 100644 (file)
@@ -699,10 +699,13 @@ static int vfp_set(struct task_struct *target,
 {
        int ret;
        struct thread_info *thread = task_thread_info(target);
-       struct vfp_hard_struct new_vfp = thread->vfpstate.hard;
+       struct vfp_hard_struct new_vfp;
        const size_t user_fpregs_offset = offsetof(struct user_vfp, fpregs);
        const size_t user_fpscr_offset = offsetof(struct user_vfp, fpscr);
 
+       vfp_sync_hwstate(thread);
+       new_vfp = thread->vfpstate.hard;
+
        ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
                                  &new_vfp.fpregs,
                                  user_fpregs_offset,
@@ -723,9 +726,8 @@ static int vfp_set(struct task_struct *target,
        if (ret)
                return ret;
 
-       vfp_sync_hwstate(thread);
-       thread->vfpstate.hard = new_vfp;
        vfp_flush_hwstate(thread);
+       thread->vfpstate.hard = new_vfp;
 
        return 0;
 }
index 0340224..9e617bd 100644 (file)
@@ -227,6 +227,8 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
        if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
                return -EINVAL;
 
+       vfp_flush_hwstate(thread);
+
        /*
         * Copy the floating point registers. There can be unused
         * registers see asm/hwcap.h for details.
@@ -251,9 +253,6 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
        __get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
        __get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
 
-       if (!err)
-               vfp_flush_hwstate(thread);
-
        return err ? -EFAULT : 0;
 }
 
index 9e5e755..45c97b1 100644 (file)
@@ -194,6 +194,6 @@ MACHINE_START(BCMRING, "BCMRING")
        .init_early = bcmring_init_early,
        .init_irq = bcmring_init_irq,
        .timer = &bcmring_timer,
-       .init_machine = bcmring_init_machine
+       .init_machine = bcmring_init_machine,
        .restart = bcmring_restart,
 MACHINE_END
index 1a1a27d..1024396 100644 (file)
 
 #include <mach/timer.h>
 
-#include <linux/mm.h>
 #include <linux/pfn.h>
 #include <linux/atomic.h>
 #include <linux/sched.h>
 #include <mach/dma.h>
 
-/* I don't quite understand why dc4 fails when this is set to 1 and DMA is enabled */
-/* especially since dc4 doesn't use kmalloc'd memory. */
-
-#define ALLOW_MAP_OF_KMALLOC_MEMORY 0
-
 /* ---- Public Variables ------------------------------------------------- */
 
 /* ---- Private Constants and Types -------------------------------------- */
 #define CONTROLLER_FROM_HANDLE(handle)    (((handle) >> 4) & 0x0f)
 #define CHANNEL_FROM_HANDLE(handle)       ((handle) & 0x0f)
 
-#define DMA_MAP_DEBUG   0
-
-#if DMA_MAP_DEBUG
-#   define  DMA_MAP_PRINT(fmt, args...)   printk("%s: " fmt, __func__,  ## args)
-#else
-#   define  DMA_MAP_PRINT(fmt, args...)
-#endif
 
 /* ---- Private Variables ------------------------------------------------ */
 
 static DMA_Global_t gDMA;
 static struct proc_dir_entry *gDmaDir;
 
-static atomic_t gDmaStatMemTypeKmalloc = ATOMIC_INIT(0);
-static atomic_t gDmaStatMemTypeVmalloc = ATOMIC_INIT(0);
-static atomic_t gDmaStatMemTypeUser = ATOMIC_INIT(0);
-static atomic_t gDmaStatMemTypeCoherent = ATOMIC_INIT(0);
-
 #include "dma_device.c"
 
 /* ---- Private Function Prototypes -------------------------------------- */
@@ -79,34 +61,6 @@ static atomic_t gDmaStatMemTypeCoherent = ATOMIC_INIT(0);
 
 /****************************************************************************/
 /**
-*   Displays information for /proc/dma/mem-type
-*/
-/****************************************************************************/
-
-static int dma_proc_read_mem_type(char *buf, char **start, off_t offset,
-                                 int count, int *eof, void *data)
-{
-       int len = 0;
-
-       len += sprintf(buf + len, "dma_map_mem statistics\n");
-       len +=
-           sprintf(buf + len, "coherent: %d\n",
-                   atomic_read(&gDmaStatMemTypeCoherent));
-       len +=
-           sprintf(buf + len, "kmalloc:  %d\n",
-                   atomic_read(&gDmaStatMemTypeKmalloc));
-       len +=
-           sprintf(buf + len, "vmalloc:  %d\n",
-                   atomic_read(&gDmaStatMemTypeVmalloc));
-       len +=
-           sprintf(buf + len, "user:     %d\n",
-                   atomic_read(&gDmaStatMemTypeUser));
-
-       return len;
-}
-
-/****************************************************************************/
-/**
 *   Displays information for /proc/dma/channels
 */
 /****************************************************************************/
@@ -846,8 +800,6 @@ int dma_init(void)
                                       dma_proc_read_channels, NULL);
                create_proc_read_entry("devices", 0, gDmaDir,
                                       dma_proc_read_devices, NULL);
-               create_proc_read_entry("mem-type", 0, gDmaDir,
-                                      dma_proc_read_mem_type, NULL);
        }
 
 out:
@@ -1565,767 +1517,3 @@ int dma_set_device_handler(DMA_Device_t dev,    /* Device to set the callback for.
 }
 
 EXPORT_SYMBOL(dma_set_device_handler);
-
-/****************************************************************************/
-/**
-*   Initializes a memory mapping structure
-*/
-/****************************************************************************/
-
-int dma_init_mem_map(DMA_MemMap_t *memMap)
-{
-       memset(memMap, 0, sizeof(*memMap));
-
-       sema_init(&memMap->lock, 1);
-
-       return 0;
-}
-
-EXPORT_SYMBOL(dma_init_mem_map);
-
-/****************************************************************************/
-/**
-*   Releases any memory currently being held by a memory mapping structure.
-*/
-/****************************************************************************/
-
-int dma_term_mem_map(DMA_MemMap_t *memMap)
-{
-       down(&memMap->lock);    /* Just being paranoid */
-
-       /* Free up any allocated memory */
-
-       up(&memMap->lock);
-       memset(memMap, 0, sizeof(*memMap));
-
-       return 0;
-}
-
-EXPORT_SYMBOL(dma_term_mem_map);
-
-/****************************************************************************/
-/**
-*   Looks at a memory address and categorizes it.
-*
-*   @return One of the values from the DMA_MemType_t enumeration.
-*/
-/****************************************************************************/
-
-DMA_MemType_t dma_mem_type(void *addr)
-{
-       unsigned long addrVal = (unsigned long)addr;
-
-       if (addrVal >= CONSISTENT_BASE) {
-               /* NOTE: DMA virtual memory space starts at 0xFFxxxxxx */
-
-               /* dma_alloc_xxx pages are physically and virtually contiguous */
-
-               return DMA_MEM_TYPE_DMA;
-       }
-
-       /* Technically, we could add one more classification. Addresses between VMALLOC_END */
-       /* and the beginning of the DMA virtual address could be considered to be I/O space. */
-       /* Right now, nobody cares about this particular classification, so we ignore it. */
-
-       if (is_vmalloc_addr(addr)) {
-               /* Address comes from the vmalloc'd region. Pages are virtually */
-               /* contiguous but NOT physically contiguous */
-
-               return DMA_MEM_TYPE_VMALLOC;
-       }
-
-       if (addrVal >= PAGE_OFFSET) {
-               /* PAGE_OFFSET is typically 0xC0000000 */
-
-               /* kmalloc'd pages are physically contiguous */
-
-               return DMA_MEM_TYPE_KMALLOC;
-       }
-
-       return DMA_MEM_TYPE_USER;
-}
-
-EXPORT_SYMBOL(dma_mem_type);
-
-/****************************************************************************/
-/**
-*   Looks at a memory address and determines if we support DMA'ing to/from
-*   that type of memory.
-*
-*   @return boolean -
-*               return value != 0 means dma supported
-*               return value == 0 means dma not supported
-*/
-/****************************************************************************/
-
-int dma_mem_supports_dma(void *addr)
-{
-       DMA_MemType_t memType = dma_mem_type(addr);
-
-       return (memType == DMA_MEM_TYPE_DMA)
-#if ALLOW_MAP_OF_KMALLOC_MEMORY
-           || (memType == DMA_MEM_TYPE_KMALLOC)
-#endif
-           || (memType == DMA_MEM_TYPE_USER);
-}
-
-EXPORT_SYMBOL(dma_mem_supports_dma);
-
-/****************************************************************************/
-/**
-*   Maps in a memory region such that it can be used for performing a DMA.
-*
-*   @return
-*/
-/****************************************************************************/
-
-int dma_map_start(DMA_MemMap_t *memMap,        /* Stores state information about the map */
-                 enum dma_data_direction dir   /* Direction that the mapping will be going */
-    ) {
-       int rc;
-
-       down(&memMap->lock);
-
-       DMA_MAP_PRINT("memMap: %p\n", memMap);
-
-       if (memMap->inUse) {
-               printk(KERN_ERR "%s: memory map %p is already being used\n",
-                      __func__, memMap);
-               rc = -EBUSY;
-               goto out;
-       }
-
-       memMap->inUse = 1;
-       memMap->dir = dir;
-       memMap->numRegionsUsed = 0;
-
-       rc = 0;
-
-out:
-
-       DMA_MAP_PRINT("returning %d", rc);
-
-       up(&memMap->lock);
-
-       return rc;
-}
-
-EXPORT_SYMBOL(dma_map_start);
-
-/****************************************************************************/
-/**
-*   Adds a segment of memory to a memory map. Each segment is both
-*   physically and virtually contiguous.
-*
-*   @return     0 on success, error code otherwise.
-*/
-/****************************************************************************/
-
-static int dma_map_add_segment(DMA_MemMap_t *memMap,   /* Stores state information about the map */
-                              DMA_Region_t *region,    /* Region that the segment belongs to */
-                              void *virtAddr,  /* Virtual address of the segment being added */
-                              dma_addr_t physAddr,     /* Physical address of the segment being added */
-                              size_t numBytes  /* Number of bytes of the segment being added */
-    ) {
-       DMA_Segment_t *segment;
-
-       DMA_MAP_PRINT("memMap:%p va:%p pa:0x%x #:%d\n", memMap, virtAddr,
-                     physAddr, numBytes);
-
-       /* Sanity check */
-
-       if (((unsigned long)virtAddr < (unsigned long)region->virtAddr)
-           || (((unsigned long)virtAddr + numBytes)) >
-           ((unsigned long)region->virtAddr + region->numBytes)) {
-               printk(KERN_ERR
-                      "%s: virtAddr %p is outside region @ %p len: %d\n",
-                      __func__, virtAddr, region->virtAddr, region->numBytes);
-               return -EINVAL;
-       }
-
-       if (region->numSegmentsUsed > 0) {
-               /* Check to see if this segment is physically contiguous with the previous one */
-
-               segment = &region->segment[region->numSegmentsUsed - 1];
-
-               if ((segment->physAddr + segment->numBytes) == physAddr) {
-                       /* It is - just add on to the end */
-
-                       DMA_MAP_PRINT("appending %d bytes to last segment\n",
-                                     numBytes);
-
-                       segment->numBytes += numBytes;
-
-                       return 0;
-               }
-       }
-
-       /* Reallocate to hold more segments, if required. */
-
-       if (region->numSegmentsUsed >= region->numSegmentsAllocated) {
-               DMA_Segment_t *newSegment;
-               size_t oldSize =
-                   region->numSegmentsAllocated * sizeof(*newSegment);
-               int newAlloc = region->numSegmentsAllocated + 4;
-               size_t newSize = newAlloc * sizeof(*newSegment);
-
-               newSegment = kmalloc(newSize, GFP_KERNEL);
-               if (newSegment == NULL) {
-                       return -ENOMEM;
-               }
-               memcpy(newSegment, region->segment, oldSize);
-               memset(&((uint8_t *) newSegment)[oldSize], 0,
-                      newSize - oldSize);
-               kfree(region->segment);
-
-               region->numSegmentsAllocated = newAlloc;
-               region->segment = newSegment;
-       }
-
-       segment = &region->segment[region->numSegmentsUsed];
-       region->numSegmentsUsed++;
-
-       segment->virtAddr = virtAddr;
-       segment->physAddr = physAddr;
-       segment->numBytes = numBytes;
-
-       DMA_MAP_PRINT("returning success\n");
-
-       return 0;
-}
-
-/****************************************************************************/
-/**
-*   Adds a region of memory to a memory map. Each region is virtually
-*   contiguous, but not necessarily physically contiguous.
-*
-*   @return     0 on success, error code otherwise.
-*/
-/****************************************************************************/
-
-int dma_map_add_region(DMA_MemMap_t *memMap,   /* Stores state information about the map */
-                      void *mem,       /* Virtual address that we want to get a map of */
-                      size_t numBytes  /* Number of bytes being mapped */
-    ) {
-       unsigned long addr = (unsigned long)mem;
-       unsigned int offset;
-       int rc = 0;
-       DMA_Region_t *region;
-       dma_addr_t physAddr;
-
-       down(&memMap->lock);
-
-       DMA_MAP_PRINT("memMap:%p va:%p #:%d\n", memMap, mem, numBytes);
-
-       if (!memMap->inUse) {
-               printk(KERN_ERR "%s: Make sure you call dma_map_start first\n",
-                      __func__);
-               rc = -EINVAL;
-               goto out;
-       }
-
-       /* Reallocate to hold more regions. */
-
-       if (memMap->numRegionsUsed >= memMap->numRegionsAllocated) {
-               DMA_Region_t *newRegion;
-               size_t oldSize =
-                   memMap->numRegionsAllocated * sizeof(*newRegion);
-               int newAlloc = memMap->numRegionsAllocated + 4;
-               size_t newSize = newAlloc * sizeof(*newRegion);
-
-               newRegion = kmalloc(newSize, GFP_KERNEL);
-               if (newRegion == NULL) {
-                       rc = -ENOMEM;
-                       goto out;
-               }
-               memcpy(newRegion, memMap->region, oldSize);
-               memset(&((uint8_t *) newRegion)[oldSize], 0, newSize - oldSize);
-
-               kfree(memMap->region);
-
-               memMap->numRegionsAllocated = newAlloc;
-               memMap->region = newRegion;
-       }
-
-       region = &memMap->region[memMap->numRegionsUsed];
-       memMap->numRegionsUsed++;
-
-       offset = addr & ~PAGE_MASK;
-
-       region->memType = dma_mem_type(mem);
-       region->virtAddr = mem;
-       region->numBytes = numBytes;
-       region->numSegmentsUsed = 0;
-       region->numLockedPages = 0;
-       region->lockedPages = NULL;
-
-       switch (region->memType) {
-       case DMA_MEM_TYPE_VMALLOC:
-               {
-                       atomic_inc(&gDmaStatMemTypeVmalloc);
-
-                       /* printk(KERN_ERR "%s: vmalloc'd pages are not supported\n", __func__); */
-
-                       /* vmalloc'd pages are not physically contiguous */
-
-                       rc = -EINVAL;
-                       break;
-               }
-
-       case DMA_MEM_TYPE_KMALLOC:
-               {
-                       atomic_inc(&gDmaStatMemTypeKmalloc);
-
-                       /* kmalloc'd pages are physically contiguous, so they'll have exactly */
-                       /* one segment */
-
-#if ALLOW_MAP_OF_KMALLOC_MEMORY
-                       physAddr =
-                           dma_map_single(NULL, mem, numBytes, memMap->dir);
-                       rc = dma_map_add_segment(memMap, region, mem, physAddr,
-                                                numBytes);
-#else
-                       rc = -EINVAL;
-#endif
-                       break;
-               }
-
-       case DMA_MEM_TYPE_DMA:
-               {
-                       /* dma_alloc_xxx pages are physically contiguous */
-
-                       atomic_inc(&gDmaStatMemTypeCoherent);
-
-                       physAddr = (vmalloc_to_pfn(mem) << PAGE_SHIFT) + offset;
-
-                       dma_sync_single_for_cpu(NULL, physAddr, numBytes,
-                                               memMap->dir);
-                       rc = dma_map_add_segment(memMap, region, mem, physAddr,
-                                                numBytes);
-                       break;
-               }
-
-       case DMA_MEM_TYPE_USER:
-               {
-                       size_t firstPageOffset;
-                       size_t firstPageSize;
-                       struct page **pages;
-                       struct task_struct *userTask;
-
-                       atomic_inc(&gDmaStatMemTypeUser);
-
-#if 1
-                       /* If the pages are user pages, then the dma_mem_map_set_user_task function */
-                       /* must have been previously called. */
-
-                       if (memMap->userTask == NULL) {
-                               printk(KERN_ERR
-                                      "%s: must call dma_mem_map_set_user_task when using user-mode memory\n",
-                                      __func__);
-                               return -EINVAL;
-                       }
-
-                       /* User pages need to be locked. */
-
-                       firstPageOffset =
-                           (unsigned long)region->virtAddr & (PAGE_SIZE - 1);
-                       firstPageSize = PAGE_SIZE - firstPageOffset;
-
-                       region->numLockedPages = (firstPageOffset
-                                                 + region->numBytes +
-                                                 PAGE_SIZE - 1) / PAGE_SIZE;
-                       pages =
-                           kmalloc(region->numLockedPages *
-                                   sizeof(struct page *), GFP_KERNEL);
-
-                       if (pages == NULL) {
-                               region->numLockedPages = 0;
-                               return -ENOMEM;
-                       }
-
-                       userTask = memMap->userTask;
-
-                       down_read(&userTask->mm->mmap_sem);
-                       rc = get_user_pages(userTask,   /* task */
-                                           userTask->mm,       /* mm */
-                                           (unsigned long)region->virtAddr,    /* start */
-                                           region->numLockedPages,     /* len */
-                                           memMap->dir == DMA_FROM_DEVICE,     /* write */
-                                           0,  /* force */
-                                           pages,      /* pages (array of pointers to page) */
-                                           NULL);      /* vmas */
-                       up_read(&userTask->mm->mmap_sem);
-
-                       if (rc != region->numLockedPages) {
-                               kfree(pages);
-                               region->numLockedPages = 0;
-
-                               if (rc >= 0) {
-                                       rc = -EINVAL;
-                               }
-                       } else {
-                               uint8_t *virtAddr = region->virtAddr;
-                               size_t bytesRemaining;
-                               int pageIdx;
-
-                               rc = 0; /* Since get_user_pages returns +ve number */
-
-                               region->lockedPages = pages;
-
-                               /* We've locked the user pages. Now we need to walk them and figure */
-                               /* out the physical addresses. */
-
-                               /* The first page may be partial */
-
-                               dma_map_add_segment(memMap,
-                                                   region,
-                                                   virtAddr,
-                                                   PFN_PHYS(page_to_pfn
-                                                            (pages[0])) +
-                                                   firstPageOffset,
-                                                   firstPageSize);
-
-                               virtAddr += firstPageSize;
-                               bytesRemaining =
-                                   region->numBytes - firstPageSize;
-
-                               for (pageIdx = 1;
-                                    pageIdx < region->numLockedPages;
-                                    pageIdx++) {
-                                       size_t bytesThisPage =
-                                           (bytesRemaining >
-                                            PAGE_SIZE ? PAGE_SIZE :
-                                            bytesRemaining);
-
-                                       DMA_MAP_PRINT
-                                           ("pageIdx:%d pages[pageIdx]=%p pfn=%u phys=%u\n",
-                                            pageIdx, pages[pageIdx],
-                                            page_to_pfn(pages[pageIdx]),
-                                            PFN_PHYS(page_to_pfn
-                                                     (pages[pageIdx])));
-
-                                       dma_map_add_segment(memMap,
-                                                           region,
-                                                           virtAddr,
-                                                           PFN_PHYS(page_to_pfn
-                                                                    (pages
-                                                                     [pageIdx])),
-                                                           bytesThisPage);
-
-                                       virtAddr += bytesThisPage;
-                                       bytesRemaining -= bytesThisPage;
-                               }
-                       }
-#else
-                       printk(KERN_ERR
-                              "%s: User mode pages are not yet supported\n",
-                              __func__);
-
-                       /* user pages are not physically contiguous */
-
-                       rc = -EINVAL;
-#endif
-                       break;
-               }
-
-       default:
-               {
-                       printk(KERN_ERR "%s: Unsupported memory type: %d\n",
-                              __func__, region->memType);
-
-                       rc = -EINVAL;
-                       break;
-               }
-       }
-
-       if (rc != 0) {
-               memMap->numRegionsUsed--;
-       }
-
-out:
-
-       DMA_MAP_PRINT("returning %d\n", rc);
-
-       up(&memMap->lock);
-
-       return rc;
-}
-
-EXPORT_SYMBOL(dma_map_add_segment);
-
-/****************************************************************************/
-/**
-*   Maps in a memory region such that it can be used for performing a DMA.
-*
-*   @return     0 on success, error code otherwise.
-*/
-/****************************************************************************/
-
-int dma_map_mem(DMA_MemMap_t *memMap,  /* Stores state information about the map */
-               void *mem,      /* Virtual address that we want to get a map of */
-               size_t numBytes,        /* Number of bytes being mapped */
-               enum dma_data_direction dir     /* Direction that the mapping will be going */
-    ) {
-       int rc;
-
-       rc = dma_map_start(memMap, dir);
-       if (rc == 0) {
-               rc = dma_map_add_region(memMap, mem, numBytes);
-               if (rc < 0) {
-                       /* Since the add fails, this function will fail, and the caller won't */
-                       /* call unmap, so we need to do it here. */
-
-                       dma_unmap(memMap, 0);
-               }
-       }
-
-       return rc;
-}
-
-EXPORT_SYMBOL(dma_map_mem);
-
-/****************************************************************************/
-/**
-*   Setup a descriptor ring for a given memory map.
-*
-*   It is assumed that the descriptor ring has already been initialized, and
-*   this routine will only reallocate a new descriptor ring if the existing
-*   one is too small.
-*
-*   @return     0 on success, error code otherwise.
-*/
-/****************************************************************************/
-
-int dma_map_create_descriptor_ring(DMA_Device_t dev,   /* DMA device (where the ring is stored) */
-                                  DMA_MemMap_t *memMap,        /* Memory map that will be used */
-                                  dma_addr_t devPhysAddr       /* Physical address of device */
-    ) {
-       int rc;
-       int numDescriptors;
-       DMA_DeviceAttribute_t *devAttr;
-       DMA_Region_t *region;
-       DMA_Segment_t *segment;
-       dma_addr_t srcPhysAddr;
-       dma_addr_t dstPhysAddr;
-       int regionIdx;
-       int segmentIdx;
-
-       devAttr = &DMA_gDeviceAttribute[dev];
-
-       down(&memMap->lock);
-
-       /* Figure out how many descriptors we need */
-
-       numDescriptors = 0;
-       for (regionIdx = 0; regionIdx < memMap->numRegionsUsed; regionIdx++) {
-               region = &memMap->region[regionIdx];
-
-               for (segmentIdx = 0; segmentIdx < region->numSegmentsUsed;
-                    segmentIdx++) {
-                       segment = &region->segment[segmentIdx];
-
-                       if (memMap->dir == DMA_TO_DEVICE) {
-                               srcPhysAddr = segment->physAddr;
-                               dstPhysAddr = devPhysAddr;
-                       } else {
-                               srcPhysAddr = devPhysAddr;
-                               dstPhysAddr = segment->physAddr;
-                       }
-
-                       rc =
-                            dma_calculate_descriptor_count(dev, srcPhysAddr,
-                                                           dstPhysAddr,
-                                                           segment->
-                                                           numBytes);
-                       if (rc < 0) {
-                               printk(KERN_ERR
-                                      "%s: dma_calculate_descriptor_count failed: %d\n",
-                                      __func__, rc);
-                               goto out;
-                       }
-                       numDescriptors += rc;
-               }
-       }
-
-       /* Adjust the size of the ring, if it isn't big enough */
-
-       if (numDescriptors > devAttr->ring.descriptorsAllocated) {
-               dma_free_descriptor_ring(&devAttr->ring);
-               rc =
-                    dma_alloc_descriptor_ring(&devAttr->ring,
-                                              numDescriptors);
-               if (rc < 0) {
-                       printk(KERN_ERR
-                              "%s: dma_alloc_descriptor_ring failed: %d\n",
-                              __func__, rc);
-                       goto out;
-               }
-       } else {
-               rc =
-                    dma_init_descriptor_ring(&devAttr->ring,
-                                             numDescriptors);
-               if (rc < 0) {
-                       printk(KERN_ERR
-                              "%s: dma_init_descriptor_ring failed: %d\n",
-                              __func__, rc);
-                       goto out;
-               }
-       }
-
-       /* Populate the descriptors */
-
-       for (regionIdx = 0; regionIdx < memMap->numRegionsUsed; regionIdx++) {
-               region = &memMap->region[regionIdx];
-
-               for (segmentIdx = 0; segmentIdx < region->numSegmentsUsed;
-                    segmentIdx++) {
-                       segment = &region->segment[segmentIdx];
-
-                       if (memMap->dir == DMA_TO_DEVICE) {
-                               srcPhysAddr = segment->physAddr;
-                               dstPhysAddr = devPhysAddr;
-                       } else {
-                               srcPhysAddr = devPhysAddr;
-                               dstPhysAddr = segment->physAddr;
-                       }
-
-                       rc =
-                            dma_add_descriptors(&devAttr->ring, dev,
-                                                srcPhysAddr, dstPhysAddr,
-                                                segment->numBytes);
-                       if (rc < 0) {
-                               printk(KERN_ERR
-                                      "%s: dma_add_descriptors failed: %d\n",
-                                      __func__, rc);
-                               goto out;
-                       }
-               }
-       }
-
-       rc = 0;
-
-out:
-
-       up(&memMap->lock);
-       return rc;
-}
-
-EXPORT_SYMBOL(dma_map_create_descriptor_ring);
-
-/****************************************************************************/
-/**
-*   Maps in a memory region such that it can be used for performing a DMA.
-*
-*   @return
-*/
-/****************************************************************************/
-
-int dma_unmap(DMA_MemMap_t *memMap,    /* Stores state information about the map */
-             int dirtied       /* non-zero if any of the pages were modified */
-    ) {
-
-       int rc = 0;
-       int regionIdx;
-       int segmentIdx;
-       DMA_Region_t *region;
-       DMA_Segment_t *segment;
-
-       down(&memMap->lock);
-
-       for (regionIdx = 0; regionIdx < memMap->numRegionsUsed; regionIdx++) {
-               region = &memMap->region[regionIdx];
-
-               for (segmentIdx = 0; segmentIdx < region->numSegmentsUsed;
-                    segmentIdx++) {
-                       segment = &region->segment[segmentIdx];
-
-                       switch (region->memType) {
-                       case DMA_MEM_TYPE_VMALLOC:
-                               {
-                                       printk(KERN_ERR
-                                              "%s: vmalloc'd pages are not yet supported\n",
-                                              __func__);
-                                       rc = -EINVAL;
-                                       goto out;
-                               }
-
-                       case DMA_MEM_TYPE_KMALLOC:
-                               {
-#if ALLOW_MAP_OF_KMALLOC_MEMORY
-                                       dma_unmap_single(NULL,
-                                                        segment->physAddr,
-                                                        segment->numBytes,
-                                                        memMap->dir);
-#endif
-                                       break;
-                               }
-
-                       case DMA_MEM_TYPE_DMA:
-                               {
-                                       dma_sync_single_for_cpu(NULL,
-                                                               segment->
-                                                               physAddr,
-                                                               segment->
-                                                               numBytes,
-                                                               memMap->dir);
-                                       break;
-                               }
-
-                       case DMA_MEM_TYPE_USER:
-                               {
-                                       /* Nothing to do here. */
-
-                                       break;
-                               }
-
-                       default:
-                               {
-                                       printk(KERN_ERR
-                                              "%s: Unsupported memory type: %d\n",
-                                              __func__, region->memType);
-                                       rc = -EINVAL;
-                                       goto out;
-                               }
-                       }
-
-                       segment->virtAddr = NULL;
-                       segment->physAddr = 0;
-                       segment->numBytes = 0;
-               }
-
-               if (region->numLockedPages > 0) {
-                       int pageIdx;
-
-                       /* Some user pages were locked. We need to go and unlock them now. */
-
-                       for (pageIdx = 0; pageIdx < region->numLockedPages;
-                            pageIdx++) {
-                               struct page *page =
-                                   region->lockedPages[pageIdx];
-
-                               if (memMap->dir == DMA_FROM_DEVICE) {
-                                       SetPageDirty(page);
-                               }
-                               page_cache_release(page);
-                       }
-                       kfree(region->lockedPages);
-                       region->numLockedPages = 0;
-                       region->lockedPages = NULL;
-               }
-
-               region->memType = DMA_MEM_TYPE_NONE;
-               region->virtAddr = NULL;
-               region->numBytes = 0;
-               region->numSegmentsUsed = 0;
-       }
-       memMap->userTask = NULL;
-       memMap->numRegionsUsed = 0;
-       memMap->inUse = 0;
-
-out:
-       up(&memMap->lock);
-
-       return rc;
-}
-
-EXPORT_SYMBOL(dma_unmap);
index 1f2c531..7254378 100644 (file)
 /* ---- Include Files ---------------------------------------------------- */
 
 #include <linux/kernel.h>
-#include <linux/wait.h>
 #include <linux/semaphore.h>
 #include <csp/dmacHw.h>
 #include <mach/timer.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-mapping.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/pagemap.h>
 
 /* ---- Constants and Types ---------------------------------------------- */
 
@@ -113,78 +107,6 @@ typedef struct {
 
 /****************************************************************************
 *
-*   The DMA_MemType_t and DMA_MemMap_t are helper structures used to setup
-*   DMA chains from a variety of memory sources.
-*
-*****************************************************************************/
-
-#define DMA_MEM_MAP_MIN_SIZE    4096   /* Pages less than this size are better */
-                                       /* off not being DMA'd. */
-
-typedef enum {
-       DMA_MEM_TYPE_NONE,      /* Not a valid setting */
-       DMA_MEM_TYPE_VMALLOC,   /* Memory came from vmalloc call */
-       DMA_MEM_TYPE_KMALLOC,   /* Memory came from kmalloc call */
-       DMA_MEM_TYPE_DMA,       /* Memory came from dma_alloc_xxx call */
-       DMA_MEM_TYPE_USER,      /* Memory came from user space. */
-
-} DMA_MemType_t;
-
-/* A segment represents a physically and virtually contiguous chunk of memory. */
-/* i.e. each segment can be DMA'd */
-/* A user of the DMA code will add memory regions. Each region may need to be */
-/* represented by one or more segments. */
-
-typedef struct {
-       void *virtAddr;         /* Virtual address used for this segment */
-       dma_addr_t physAddr;    /* Physical address this segment maps to */
-       size_t numBytes;        /* Size of the segment, in bytes */
-
-} DMA_Segment_t;
-
-/* A region represents a virtually contiguous chunk of memory, which may be */
-/* made up of multiple segments. */
-
-typedef struct {
-       DMA_MemType_t memType;
-       void *virtAddr;
-       size_t numBytes;
-
-       /* Each region (virtually contiguous) consists of one or more segments. Each */
-       /* segment is virtually and physically contiguous. */
-
-       int numSegmentsUsed;
-       int numSegmentsAllocated;
-       DMA_Segment_t *segment;
-
-       /* When a region corresponds to user memory, we need to lock all of the pages */
-       /* down before we can figure out the physical addresses. The lockedPage array contains */
-       /* the pages that were locked, and which subsequently need to be unlocked once the */
-       /* memory is unmapped. */
-
-       unsigned numLockedPages;
-       struct page **lockedPages;
-
-} DMA_Region_t;
-
-typedef struct {
-       int inUse;              /* Is this mapping currently being used? */
-       struct semaphore lock;  /* Acquired when using this structure */
-       enum dma_data_direction dir;    /* Direction this transfer is intended for */
-
-       /* In the event that we're mapping user memory, we need to know which task */
-       /* the memory is for, so that we can obtain the correct mm locks. */
-
-       struct task_struct *userTask;
-
-       int numRegionsUsed;
-       int numRegionsAllocated;
-       DMA_Region_t *region;
-
-} DMA_MemMap_t;
-
-/****************************************************************************
-*
 *   The DMA_DeviceAttribute_t contains information which describes a
 *   particular DMA device (or peripheral).
 *
@@ -570,124 +492,6 @@ int dma_alloc_double_dst_descriptors(DMA_Handle_t handle, /* DMA Handle */
 
 /****************************************************************************/
 /**
-*   Initializes a DMA_MemMap_t data structure
-*/
-/****************************************************************************/
-
-int dma_init_mem_map(DMA_MemMap_t *memMap      /* Stores state information about the map */
-    );
-
-/****************************************************************************/
-/**
-*   Releases any memory currently being held by a memory mapping structure.
-*/
-/****************************************************************************/
-
-int dma_term_mem_map(DMA_MemMap_t *memMap      /* Stores state information about the map */
-    );
-
-/****************************************************************************/
-/**
-*   Looks at a memory address and categorizes it.
-*
-*   @return One of the values from the DMA_MemType_t enumeration.
-*/
-/****************************************************************************/
-
-DMA_MemType_t dma_mem_type(void *addr);
-
-/****************************************************************************/
-/**
-*   Sets the process (aka userTask) associated with a mem map. This is
-*   required if user-mode segments will be added to the mapping.
-*/
-/****************************************************************************/
-
-static inline void dma_mem_map_set_user_task(DMA_MemMap_t *memMap,
-                                            struct task_struct *task)
-{
-       memMap->userTask = task;
-}
-
-/****************************************************************************/
-/**
-*   Looks at a memory address and determines if we support DMA'ing to/from
-*   that type of memory.
-*
-*   @return boolean -
-*               return value != 0 means dma supported
-*               return value == 0 means dma not supported
-*/
-/****************************************************************************/
-
-int dma_mem_supports_dma(void *addr);
-
-/****************************************************************************/
-/**
-*   Initializes a memory map for use. Since this function acquires a
-*   sempaphore within the memory map, it is VERY important that dma_unmap
-*   be called when you're finished using the map.
-*/
-/****************************************************************************/
-
-int dma_map_start(DMA_MemMap_t *memMap,        /* Stores state information about the map */
-                 enum dma_data_direction dir   /* Direction that the mapping will be going */
-    );
-
-/****************************************************************************/
-/**
-*   Adds a segment of memory to a memory map.
-*
-*   @return     0 on success, error code otherwise.
-*/
-/****************************************************************************/
-
-int dma_map_add_region(DMA_MemMap_t *memMap,   /* Stores state information about the map */
-                      void *mem,       /* Virtual address that we want to get a map of */
-                      size_t numBytes  /* Number of bytes being mapped */
-    );
-
-/****************************************************************************/
-/**
-*   Creates a descriptor ring from a memory mapping.
-*
-*   @return 0 on success, error code otherwise.
-*/
-/****************************************************************************/
-
-int dma_map_create_descriptor_ring(DMA_Device_t dev,   /* DMA device (where the ring is stored) */
-                                  DMA_MemMap_t *memMap,        /* Memory map that will be used */
-                                  dma_addr_t devPhysAddr       /* Physical address of device */
-    );
-
-/****************************************************************************/
-/**
-*   Maps in a memory region such that it can be used for performing a DMA.
-*
-*   @return
-*/
-/****************************************************************************/
-
-int dma_map_mem(DMA_MemMap_t *memMap,  /* Stores state information about the map */
-               void *addr,     /* Virtual address that we want to get a map of */
-               size_t count,   /* Number of bytes being mapped */
-               enum dma_data_direction dir     /* Direction that the mapping will be going */
-    );
-
-/****************************************************************************/
-/**
-*   Maps in a memory region such that it can be used for performing a DMA.
-*
-*   @return
-*/
-/****************************************************************************/
-
-int dma_unmap(DMA_MemMap_t *memMap,    /* Stores state information about the map */
-             int dirtied       /* non-zero if any of the pages were modified */
-    );
-
-/****************************************************************************/
-/**
 *   Initiates a transfer when the descriptors have already been setup.
 *
 *   This is a special case, and normally, the dma_transfer_xxx functions should
index 6b22b54..d508890 100644 (file)
@@ -44,7 +44,7 @@
 #include <mach/aemif.h>
 #include <mach/spi.h>
 
-#define DA850_EVM_PHY_ID               "0:00"
+#define DA850_EVM_PHY_ID               "davinci_mdio-0:00"
 #define DA850_LCD_PWR_PIN              GPIO_TO_PIN(2, 8)
 #define DA850_LCD_BL_PIN               GPIO_TO_PIN(2, 15)
 
index 346e1de..849311d 100644 (file)
@@ -54,7 +54,7 @@ static inline int have_tvp7002(void)
        return 0;
 }
 
-#define DM365_EVM_PHY_ID               "0:01"
+#define DM365_EVM_PHY_ID               "davinci_mdio-0:01"
 /*
  * A MAX-II CPLD is used for various board control functions.
  */
index a64b49c..1247ecd 100644 (file)
@@ -40,7 +40,7 @@
 #include <mach/usb.h>
 #include <mach/aemif.h>
 
-#define DM644X_EVM_PHY_ID              "0:01"
+#define DM644X_EVM_PHY_ID              "davinci_mdio-0:01"
 #define LXT971_PHY_ID  (0x001378e2)
 #define LXT971_PHY_MASK        (0xfffffff0)
 
index 6401755..872ac69 100644 (file)
@@ -736,7 +736,7 @@ static struct davinci_uart_config uart_config __initdata = {
        .enabled_uarts = (1 << 0),
 };
 
-#define DM646X_EVM_PHY_ID              "0:01"
+#define DM646X_EVM_PHY_ID              "davinci_mdio-0:01"
 /*
  * The following EDMA channels/slots are not being used by drivers (for
  * example: Timer, GPIO, UART events etc) on dm646x, hence they are being
index 6c4a164..8d34f51 100644 (file)
@@ -39,7 +39,7 @@
 #include <mach/mmc.h>
 #include <mach/usb.h>
 
-#define NEUROS_OSD2_PHY_ID             "0:01"
+#define NEUROS_OSD2_PHY_ID             "davinci_mdio-0:01"
 #define LXT971_PHY_ID                  0x001378e2
 #define LXT971_PHY_MASK                        0xfffffff0
 
index e7c0c7c..45e8157 100644 (file)
@@ -21,7 +21,7 @@
 #include <mach/da8xx.h>
 #include <mach/mux.h>
 
-#define HAWKBOARD_PHY_ID               "0:07"
+#define HAWKBOARD_PHY_ID               "davinci_mdio-0:07"
 #define DA850_HAWK_MMCSD_CD_PIN                GPIO_TO_PIN(3, 12)
 #define DA850_HAWK_MMCSD_WP_PIN                GPIO_TO_PIN(3, 13)
 
index 0b136a8..31da3c5 100644 (file)
@@ -42,7 +42,7 @@
 #include <mach/mux.h>
 #include <mach/usb.h>
 
-#define SFFSDR_PHY_ID          "0:01"
+#define SFFSDR_PHY_ID          "davinci_mdio-0:01"
 static struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
        /* U-Boot Environment: Block 0
         * UBL:                Block 1
index 0ed7fdb..992c4c4 100644 (file)
@@ -153,34 +153,6 @@ static struct clk pll1_sysclk3 = {
        .div_reg        = PLLDIV3,
 };
 
-static struct clk pll1_sysclk4 = {
-       .name           = "pll1_sysclk4",
-       .parent         = &pll1_clk,
-       .flags          = CLK_PLL,
-       .div_reg        = PLLDIV4,
-};
-
-static struct clk pll1_sysclk5 = {
-       .name           = "pll1_sysclk5",
-       .parent         = &pll1_clk,
-       .flags          = CLK_PLL,
-       .div_reg        = PLLDIV5,
-};
-
-static struct clk pll1_sysclk6 = {
-       .name           = "pll0_sysclk6",
-       .parent         = &pll0_clk,
-       .flags          = CLK_PLL,
-       .div_reg        = PLLDIV6,
-};
-
-static struct clk pll1_sysclk7 = {
-       .name           = "pll1_sysclk7",
-       .parent         = &pll1_clk,
-       .flags          = CLK_PLL,
-       .div_reg        = PLLDIV7,
-};
-
 static struct clk i2c0_clk = {
        .name           = "i2c0",
        .parent         = &pll0_aux_clk,
@@ -397,10 +369,6 @@ static struct clk_lookup da850_clks[] = {
        CLK(NULL,               "pll1_aux",     &pll1_aux_clk),
        CLK(NULL,               "pll1_sysclk2", &pll1_sysclk2),
        CLK(NULL,               "pll1_sysclk3", &pll1_sysclk3),
-       CLK(NULL,               "pll1_sysclk4", &pll1_sysclk4),
-       CLK(NULL,               "pll1_sysclk5", &pll1_sysclk5),
-       CLK(NULL,               "pll1_sysclk6", &pll1_sysclk6),
-       CLK(NULL,               "pll1_sysclk7", &pll1_sysclk7),
        CLK("i2c_davinci.1",    NULL,           &i2c0_clk),
        CLK(NULL,               "timer0",       &timerp64_0_clk),
        CLK("watchdog",         NULL,           &timerp64_1_clk),
index 41e6612..d965da4 100644 (file)
@@ -213,13 +213,12 @@ config MACH_OMAP3_PANDORA
        depends on ARCH_OMAP3
        default y
        select OMAP_PACKAGE_CBB
-       select REGULATOR_FIXED_VOLTAGE
+       select REGULATOR_FIXED_VOLTAGE if REGULATOR
 
 config MACH_OMAP3_TOUCHBOOK
        bool "OMAP3 Touch Book"
        depends on ARCH_OMAP3
        default y
-       select BACKLIGHT_CLASS_DEVICE
 
 config MACH_OMAP_3430SDP
        bool "OMAP 3430 SDP board"
@@ -265,7 +264,7 @@ config MACH_OMAP_ZOOM2
        select SERIAL_8250
        select SERIAL_CORE_CONSOLE
        select SERIAL_8250_CONSOLE
-       select REGULATOR_FIXED_VOLTAGE
+       select REGULATOR_FIXED_VOLTAGE if REGULATOR
 
 config MACH_OMAP_ZOOM3
        bool "OMAP3630 Zoom3 board"
@@ -275,7 +274,7 @@ config MACH_OMAP_ZOOM3
        select SERIAL_8250
        select SERIAL_CORE_CONSOLE
        select SERIAL_8250_CONSOLE
-       select REGULATOR_FIXED_VOLTAGE
+       select REGULATOR_FIXED_VOLTAGE if REGULATOR
 
 config MACH_CM_T35
        bool "CompuLab CM-T35/CM-T3730 modules"
@@ -334,7 +333,7 @@ config MACH_OMAP_4430SDP
        depends on ARCH_OMAP4
        select OMAP_PACKAGE_CBL
        select OMAP_PACKAGE_CBS
-       select REGULATOR_FIXED_VOLTAGE
+       select REGULATOR_FIXED_VOLTAGE if REGULATOR
 
 config MACH_OMAP4_PANDA
        bool "OMAP4 Panda Board"
@@ -342,7 +341,7 @@ config MACH_OMAP4_PANDA
        depends on ARCH_OMAP4
        select OMAP_PACKAGE_CBL
        select OMAP_PACKAGE_CBS
-       select REGULATOR_FIXED_VOLTAGE
+       select REGULATOR_FIXED_VOLTAGE if REGULATOR
 
 config OMAP3_EMU
        bool "OMAP3 debugging peripherals"
index 0b510ad..283d11e 100644 (file)
@@ -405,6 +405,7 @@ static int omap_mcspi_init(struct omap_hwmod *oh, void *unused)
                        break;
        default:
                        pr_err("Invalid McSPI Revision value\n");
+                       kfree(pdata);
                        return -EINVAL;
        }
 
index 130034b..dfffbbf 100644 (file)
@@ -528,7 +528,13 @@ int gpmc_cs_configure(int cs, int cmd, int wval)
 
        case GPMC_CONFIG_DEV_SIZE:
                regval  = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
+
+               /* clear 2 target bits */
+               regval &= ~GPMC_CONFIG1_DEVICESIZE(3);
+
+               /* set the proper value */
                regval |= GPMC_CONFIG1_DEVICESIZE(wval);
+
                gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, regval);
                break;
 
index bd844af..ad0adb5 100644 (file)
@@ -175,14 +175,15 @@ static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
 {
        u32 reg;
 
-       if (mmc->slots[0].internal_clock) {
-               reg = omap_ctrl_readl(control_devconf1_offset);
+       reg = omap_ctrl_readl(control_devconf1_offset);
+       if (mmc->slots[0].internal_clock)
                reg |= OMAP2_MMCSDIO2ADPCLKISEL;
-               omap_ctrl_writel(reg, control_devconf1_offset);
-       }
+       else
+               reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
+       omap_ctrl_writel(reg, control_devconf1_offset);
 }
 
-static void hsmmc23_before_set_reg(struct device *dev, int slot,
+static void hsmmc2_before_set_reg(struct device *dev, int slot,
                                   int power_on, int vdd)
 {
        struct omap_mmc_platform_data *mmc = dev->platform_data;
@@ -407,14 +408,13 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
                        c->caps &= ~MMC_CAP_8_BIT_DATA;
                        c->caps |= MMC_CAP_4_BIT_DATA;
                }
-               /* FALLTHROUGH */
-       case 3:
                if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
                        /* off-chip level shifting, or none */
-                       mmc->slots[0].before_set_reg = hsmmc23_before_set_reg;
+                       mmc->slots[0].before_set_reg = hsmmc2_before_set_reg;
                        mmc->slots[0].after_set_reg = NULL;
                }
                break;
+       case 3:
        case 4:
        case 5:
                mmc->slots[0].before_set_reg = NULL;
index 3f174d5..eb50c29 100644 (file)
@@ -388,7 +388,7 @@ static void __init omap_hwmod_init_postsetup(void)
        omap_pm_if_early_init();
 }
 
-#ifdef CONFIG_ARCH_OMAP2
+#ifdef CONFIG_SOC_OMAP2420
 void __init omap2420_init_early(void)
 {
        omap2_set_globals_242x();
@@ -400,7 +400,9 @@ void __init omap2420_init_early(void)
        omap_hwmod_init_postsetup();
        omap2420_clk_init();
 }
+#endif
 
+#ifdef CONFIG_SOC_OMAP2430
 void __init omap2430_init_early(void)
 {
        omap2_set_globals_243x();
index c11273d..f08e442 100644 (file)
@@ -56,27 +56,6 @@ struct omap_hwmod_class omap2_dss_hwmod_class = {
 };
 
 /*
- * 'dispc' class
- * display controller
- */
-
-static struct omap_hwmod_class_sysconfig omap2_dispc_sysc = {
-       .rev_offs       = 0x0000,
-       .sysc_offs      = 0x0010,
-       .syss_offs      = 0x0014,
-       .sysc_flags     = (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE |
-                          SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE),
-       .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-                          MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
-       .sysc_fields    = &omap_hwmod_sysc_type1,
-};
-
-struct omap_hwmod_class omap2_dispc_hwmod_class = {
-       .name   = "dispc",
-       .sysc   = &omap2_dispc_sysc,
-};
-
-/*
  * 'rfbi' class
  * remote frame buffer interface
  */
index 177dee2..2a67297 100644 (file)
@@ -28,6 +28,28 @@ struct omap_hwmod_dma_info omap2xxx_dss_sdma_chs[] = {
        { .name = "dispc", .dma_req = 5 },
        { .dma_req = -1 }
 };
+
+/*
+ * 'dispc' class
+ * display controller
+ */
+
+static struct omap_hwmod_class_sysconfig omap2_dispc_sysc = {
+       .rev_offs       = 0x0000,
+       .sysc_offs      = 0x0010,
+       .syss_offs      = 0x0014,
+       .sysc_flags     = (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE |
+                          SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE),
+       .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+                          MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
+       .sysc_fields    = &omap_hwmod_sysc_type1,
+};
+
+struct omap_hwmod_class omap2_dispc_hwmod_class = {
+       .name   = "dispc",
+       .sysc   = &omap2_dispc_sysc,
+};
+
 /* OMAP2xxx Timer Common */
 static struct omap_hwmod_class_sysconfig omap2xxx_timer_sysc = {
        .rev_offs       = 0x0000,
index 5324e8d..3c8dd92 100644 (file)
@@ -1480,6 +1480,28 @@ static struct omap_hwmod omap3xxx_dss_core_hwmod = {
        .masters_cnt    = ARRAY_SIZE(omap3xxx_dss_masters),
 };
 
+/*
+ * 'dispc' class
+ * display controller
+ */
+
+static struct omap_hwmod_class_sysconfig omap3_dispc_sysc = {
+       .rev_offs       = 0x0000,
+       .sysc_offs      = 0x0010,
+       .syss_offs      = 0x0014,
+       .sysc_flags     = (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE |
+                          SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
+                          SYSC_HAS_ENAWAKEUP),
+       .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+                          MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
+       .sysc_fields    = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap3_dispc_hwmod_class = {
+       .name   = "dispc",
+       .sysc   = &omap3_dispc_sysc,
+};
+
 /* l4_core -> dss_dispc */
 static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_dispc = {
        .master         = &omap3xxx_l4_core_hwmod,
@@ -1503,7 +1525,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_dispc_slaves[] = {
 
 static struct omap_hwmod omap3xxx_dss_dispc_hwmod = {
        .name           = "dss_dispc",
-       .class          = &omap2_dispc_hwmod_class,
+       .class          = &omap3_dispc_hwmod_class,
        .mpu_irqs       = omap2_dispc_irqs,
        .main_clk       = "dss1_alwon_fck",
        .prcm           = {
@@ -3523,12 +3545,6 @@ static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
        &omap3xxx_uart2_hwmod,
        &omap3xxx_uart3_hwmod,
 
-       /* dss class */
-       &omap3xxx_dss_dispc_hwmod,
-       &omap3xxx_dss_dsi1_hwmod,
-       &omap3xxx_dss_rfbi_hwmod,
-       &omap3xxx_dss_venc_hwmod,
-
        /* i2c class */
        &omap3xxx_i2c1_hwmod,
        &omap3xxx_i2c2_hwmod,
@@ -3635,6 +3651,15 @@ static __initdata struct omap_hwmod *am35xx_hwmods[] = {
        NULL
 };
 
+static __initdata struct omap_hwmod *omap3xxx_dss_hwmods[] = {
+       /* dss class */
+       &omap3xxx_dss_dispc_hwmod,
+       &omap3xxx_dss_dsi1_hwmod,
+       &omap3xxx_dss_rfbi_hwmod,
+       &omap3xxx_dss_venc_hwmod,
+       NULL
+};
+
 int __init omap3xxx_hwmod_init(void)
 {
        int r;
@@ -3708,6 +3733,21 @@ int __init omap3xxx_hwmod_init(void)
 
        if (h)
                r = omap_hwmod_register(h);
+       if (r < 0)
+               return r;
+
+       /*
+        * DSS code presumes that dss_core hwmod is handled first,
+        * _before_ any other DSS related hwmods so register common
+        * DSS hwmods last to ensure that dss_core is already registered.
+        * Otherwise some change things may happen, for ex. if dispc
+        * is handled before dss_core and DSS is enabled in bootloader
+        * DIPSC will be reset with outputs enabled which sometimes leads
+        * to unrecoverable L3 error.
+        * XXX The long-term fix to this is to ensure modules are set up
+        * in dependency order in the hwmod core code.
+        */
+       r = omap_hwmod_register(omap3xxx_dss_hwmods);
 
        return r;
 }
index f9f1510..ef0524c 100644 (file)
@@ -1031,6 +1031,7 @@ static struct omap_hwmod_dma_info omap44xx_dmic_sdma_reqs[] = {
 
 static struct omap_hwmod_addr_space omap44xx_dmic_addrs[] = {
        {
+               .name           = "mpu",
                .pa_start       = 0x4012e000,
                .pa_end         = 0x4012e07f,
                .flags          = ADDR_TYPE_RT
@@ -1049,6 +1050,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_abe__dmic = {
 
 static struct omap_hwmod_addr_space omap44xx_dmic_dma_addrs[] = {
        {
+               .name           = "dma",
                .pa_start       = 0x4902e000,
                .pa_end         = 0x4902e07f,
                .flags          = ADDR_TYPE_RT
index c1c4d86..9ce7654 100644 (file)
@@ -19,6 +19,7 @@
 #include "common.h"
 #include <plat/cpu.h>
 #include <plat/prcm.h>
+#include <plat/irqs.h>
 
 #include "vp.h"
 
index 9dd9345..7e755bb 100644 (file)
@@ -897,7 +897,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
                ret = sr_late_init(sr_info);
                if (ret) {
                        pr_warning("%s: Error in SR late init\n", __func__);
-                       return ret;
+                       goto err_iounmap;
                }
        }
 
index 6eeff0e..5c9acea 100644 (file)
@@ -270,7 +270,7 @@ static struct clocksource clocksource_gpt = {
 static u32 notrace dmtimer_read_sched_clock(void)
 {
        if (clksrc.reserved)
-               return __omap_dm_timer_read_counter(clksrc.io_base, 1);
+               return __omap_dm_timer_read_counter(&clksrc, 1);
 
        return 0;
 }
index 6fcf304..a83cf51 100644 (file)
@@ -662,6 +662,7 @@ static struct sh_dmae_pdata usb_dma0_platform_data = {
        .dmaor_is_32bit = 1,
        .needs_tend_set = 1,
        .no_dmars       = 1,
+       .slave_only     = 1,
 };
 
 static struct resource sh7372_usb_dmae0_resources[] = {
@@ -723,6 +724,7 @@ static struct sh_dmae_pdata usb_dma1_platform_data = {
        .dmaor_is_32bit = 1,
        .needs_tend_set = 1,
        .no_dmars       = 1,
+       .slave_only     = 1,
 };
 
 static struct resource sh7372_usb_dmae1_resources[] = {
index ba15937..80632e8 100644 (file)
@@ -225,8 +225,7 @@ void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn,
                if ((area->flags & VM_ARM_MTYPE_MASK) != VM_ARM_MTYPE(mtype))
                        continue;
                if (__phys_to_pfn(area->phys_addr) > pfn ||
-                   __pfn_to_phys(pfn) + offset + size-1 >
-                   area->phys_addr + area->size-1)
+                   __pfn_to_phys(pfn) + size-1 > area->phys_addr + area->size-1)
                        continue;
                /* we can drop the lock here as we know *area is static */
                read_unlock(&vmlist_lock);
index 197e96f..3dea723 100644 (file)
@@ -8,6 +8,7 @@ config AVR32
        select HAVE_KPROBES
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_PROBE
+       select GENERIC_ATOMIC64
        select HARDIRQS_SW_RESEND
        select GENERIC_IRQ_SHOW
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
index d4fc1a9..604cd9d 100644 (file)
@@ -26,7 +26,6 @@
 #include <linux/cache.h>
 #include <linux/of_platform.h>
 #include <linux/dma-mapping.h>
-#include <linux/cpu.h>
 #include <asm/cacheflush.h>
 #include <asm/entry.h>
 #include <asm/cpuinfo.h>
@@ -227,23 +226,5 @@ static int __init setup_bus_notifier(void)
 
        return 0;
 }
-arch_initcall(setup_bus_notifier);
-
-static DEFINE_PER_CPU(struct cpu, cpu_devices);
-
-static int __init topology_init(void)
-{
-       int i, ret;
-
-       for_each_present_cpu(i) {
-               struct cpu *c = &per_cpu(cpu_devices, i);
 
-               ret = register_cpu(c, i);
-               if (ret)
-                       printk(KERN_WARNING "topology_init: register_cpu %d "
-                                               "failed (%d)\n", i, ret);
-       }
-
-       return 0;
-}
-subsys_initcall(topology_init);
+arch_initcall(setup_bus_notifier);
index c4c1312..5ab6e89 100644 (file)
@@ -2356,6 +2356,7 @@ config PCI
        depends on HW_HAS_PCI
        select PCI_DOMAINS
        select GENERIC_PCI_IOMAP
+       select NO_GENERIC_PCI_IOPORT_MAP
        help
          Find out whether you have a PCI motherboard. PCI is the name of a
          bus system, i.e. the way the CPU talks to the other stuff inside
index 2635b1a..fd35daa 100644 (file)
@@ -10,8 +10,8 @@
 #include <linux/module.h>
 #include <asm/io.h>
 
-static void __iomem *ioport_map_pci(struct pci_dev *dev,
-                                     unsigned long port, unsigned int nr)
+void __iomem *__pci_ioport_map(struct pci_dev *dev,
+                              unsigned long port, unsigned int nr)
 {
        struct pci_controller *ctrl = dev->bus->sysdata;
        unsigned long base = ctrl->io_map_base;
index 3c8db65..713fb58 100644 (file)
@@ -859,6 +859,7 @@ config PCI
        depends on SYS_SUPPORTS_PCI
        select PCI_DOMAINS
        select GENERIC_PCI_IOMAP
+       select NO_GENERIC_PCI_IOPORT_MAP
        help
          Find out whether you have a PCI motherboard. PCI is the name of a
          bus system, i.e. the way the CPU talks to the other stuff inside
index 8f18dd0..1e7b0e2 100644 (file)
@@ -356,8 +356,8 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
 
 #ifndef CONFIG_GENERIC_IOMAP
 
-static void __iomem *ioport_map_pci(struct pci_dev *dev,
-                                   unsigned long port, unsigned int nr)
+void __iomem *__pci_ioport_map(struct pci_dev *dev,
+                              unsigned long port, unsigned int nr)
 {
        struct pci_channel *chan = dev->sysdata;
 
index 9665799..ca5580e 100644 (file)
@@ -33,6 +33,7 @@ config SPARC
 config SPARC32
        def_bool !64BIT
        select GENERIC_ATOMIC64
+       select CLZ_TAB
 
 config SPARC64
        def_bool 64BIT
index 681b368..d74bc09 100644 (file)
@@ -17,23 +17,9 @@ along with GNU CC; see the file COPYING.  If not, write to
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
-       .data
-       .align 8
-       .globl  __clz_tab
-__clz_tab:
-       .byte   0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5
-       .byte   6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6
-       .byte   7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
-       .byte   7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
-       .byte   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
-       .byte   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
-       .byte   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
-       .byte   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
-       .size    __clz_tab,256
-       .global .udiv
-
        .text
        .align 4
+       .global .udiv
        .globl __divdi3
 __divdi3:
        save %sp,-104,%sp
index 0c9fa27..b3b7332 100644 (file)
@@ -145,13 +145,13 @@ extern void __add_wrong_size(void)
 
 #ifdef __HAVE_ARCH_CMPXCHG
 #define cmpxchg(ptr, old, new)                                         \
-       __cmpxchg((ptr), (old), (new), sizeof(*ptr))
+       __cmpxchg(ptr, old, new, sizeof(*(ptr)))
 
 #define sync_cmpxchg(ptr, old, new)                                    \
-       __sync_cmpxchg((ptr), (old), (new), sizeof(*ptr))
+       __sync_cmpxchg(ptr, old, new, sizeof(*(ptr)))
 
 #define cmpxchg_local(ptr, old, new)                                   \
-       __cmpxchg_local((ptr), (old), (new), sizeof(*ptr))
+       __cmpxchg_local(ptr, old, new, sizeof(*(ptr)))
 #endif
 
 /*
index ab4092e..7b9cfc4 100644 (file)
@@ -190,6 +190,9 @@ struct x86_emulate_ops {
        int (*intercept)(struct x86_emulate_ctxt *ctxt,
                         struct x86_instruction_info *info,
                         enum x86_intercept_stage stage);
+
+       bool (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
+                        u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
 };
 
 typedef u32 __attribute__((vector_size(16))) sse128_t;
@@ -298,6 +301,19 @@ struct x86_emulate_ctxt {
 #define X86EMUL_MODE_PROT     (X86EMUL_MODE_PROT16|X86EMUL_MODE_PROT32| \
                               X86EMUL_MODE_PROT64)
 
+/* CPUID vendors */
+#define X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx 0x68747541
+#define X86EMUL_CPUID_VENDOR_AuthenticAMD_ecx 0x444d4163
+#define X86EMUL_CPUID_VENDOR_AuthenticAMD_edx 0x69746e65
+
+#define X86EMUL_CPUID_VENDOR_AMDisbetterI_ebx 0x69444d41
+#define X86EMUL_CPUID_VENDOR_AMDisbetterI_ecx 0x21726574
+#define X86EMUL_CPUID_VENDOR_AMDisbetterI_edx 0x74656273
+
+#define X86EMUL_CPUID_VENDOR_GenuineIntel_ebx 0x756e6547
+#define X86EMUL_CPUID_VENDOR_GenuineIntel_ecx 0x6c65746e
+#define X86EMUL_CPUID_VENDOR_GenuineIntel_edx 0x49656e69
+
 enum x86_intercept_stage {
        X86_ICTP_NONE = 0,   /* Allow zero-init to not match anything */
        X86_ICPT_PRE_EXCEPT,
index 1aae78f..4025fe4 100644 (file)
@@ -252,7 +252,8 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
        unsigned short ss;
        unsigned long sp;
 #endif
-       printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
+       printk(KERN_DEFAULT
+              "%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
 #ifdef CONFIG_PREEMPT
        printk("PREEMPT ");
 #endif
index 6d728d9..17107bd 100644 (file)
@@ -129,7 +129,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
        if (!stack) {
                if (regs)
                        stack = (unsigned long *)regs->sp;
-               else if (task && task != current)
+               else if (task != current)
                        stack = (unsigned long *)task->thread.sp;
                else
                        stack = &dummy;
@@ -269,11 +269,11 @@ void show_registers(struct pt_regs *regs)
                unsigned char c;
                u8 *ip;
 
-               printk(KERN_EMERG "Stack:\n");
+               printk(KERN_DEFAULT "Stack:\n");
                show_stack_log_lvl(NULL, regs, (unsigned long *)sp,
-                                  0, KERN_EMERG);
+                                  0, KERN_DEFAULT);
 
-               printk(KERN_EMERG "Code: ");
+               printk(KERN_DEFAULT "Code: ");
 
                ip = (u8 *)regs->ip - code_prologue;
                if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
index 37a458b..d840e69 100644 (file)
@@ -39,6 +39,14 @@ static int reboot_mode;
 enum reboot_type reboot_type = BOOT_ACPI;
 int reboot_force;
 
+/* This variable is used privately to keep track of whether or not
+ * reboot_type is still set to its default value (i.e., reboot= hasn't
+ * been set on the command line).  This is needed so that we can
+ * suppress DMI scanning for reboot quirks.  Without it, it's
+ * impossible to override a faulty reboot quirk without recompiling.
+ */
+static int reboot_default = 1;
+
 #if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
 static int reboot_cpu = -1;
 #endif
@@ -67,6 +75,12 @@ bool port_cf9_safe = false;
 static int __init reboot_setup(char *str)
 {
        for (;;) {
+               /* Having anything passed on the command line via
+                * reboot= will cause us to disable DMI checking
+                * below.
+                */
+               reboot_default = 0;
+
                switch (*str) {
                case 'w':
                        reboot_mode = 0x1234;
@@ -295,14 +309,6 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
                        DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
                },
        },
-       {       /* Handle problems with rebooting on VersaLogic Menlow boards */
-               .callback = set_bios_reboot,
-               .ident = "VersaLogic Menlow based board",
-               .matches = {
-                       DMI_MATCH(DMI_BOARD_VENDOR, "VersaLogic Corporation"),
-                       DMI_MATCH(DMI_BOARD_NAME, "VersaLogic Menlow board"),
-               },
-       },
        { /* Handle reboot issue on Acer Aspire one */
                .callback = set_kbd_reboot,
                .ident = "Acer Aspire One A110",
@@ -316,7 +322,12 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 
 static int __init reboot_init(void)
 {
-       dmi_check_system(reboot_dmi_table);
+       /* Only do the DMI check if reboot_type hasn't been overridden
+        * on the command line
+        */
+       if (reboot_default) {
+               dmi_check_system(reboot_dmi_table);
+       }
        return 0;
 }
 core_initcall(reboot_init);
@@ -465,7 +476,12 @@ static struct dmi_system_id __initdata pci_reboot_dmi_table[] = {
 
 static int __init pci_reboot_init(void)
 {
-       dmi_check_system(pci_reboot_dmi_table);
+       /* Only do the DMI check if reboot_type hasn't been overridden
+        * on the command line
+        */
+       if (reboot_default) {
+               dmi_check_system(pci_reboot_dmi_table);
+       }
        return 0;
 }
 core_initcall(pci_reboot_init);
index 05a562b..0982507 100644 (file)
@@ -1891,6 +1891,51 @@ setup_syscalls_segments(struct x86_emulate_ctxt *ctxt,
        ss->p = 1;
 }
 
+static bool em_syscall_is_enabled(struct x86_emulate_ctxt *ctxt)
+{
+       struct x86_emulate_ops *ops = ctxt->ops;
+       u32 eax, ebx, ecx, edx;
+
+       /*
+        * syscall should always be enabled in longmode - so only become
+        * vendor specific (cpuid) if other modes are active...
+        */
+       if (ctxt->mode == X86EMUL_MODE_PROT64)
+               return true;
+
+       eax = 0x00000000;
+       ecx = 0x00000000;
+       if (ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx)) {
+               /*
+                * Intel ("GenuineIntel")
+                * remark: Intel CPUs only support "syscall" in 64bit
+                * longmode. Also an 64bit guest with a
+                * 32bit compat-app running will #UD !! While this
+                * behaviour can be fixed (by emulating) into AMD
+                * response - CPUs of AMD can't behave like Intel.
+                */
+               if (ebx == X86EMUL_CPUID_VENDOR_GenuineIntel_ebx &&
+                   ecx == X86EMUL_CPUID_VENDOR_GenuineIntel_ecx &&
+                   edx == X86EMUL_CPUID_VENDOR_GenuineIntel_edx)
+                       return false;
+
+               /* AMD ("AuthenticAMD") */
+               if (ebx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx &&
+                   ecx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ecx &&
+                   edx == X86EMUL_CPUID_VENDOR_AuthenticAMD_edx)
+                       return true;
+
+               /* AMD ("AMDisbetter!") */
+               if (ebx == X86EMUL_CPUID_VENDOR_AMDisbetterI_ebx &&
+                   ecx == X86EMUL_CPUID_VENDOR_AMDisbetterI_ecx &&
+                   edx == X86EMUL_CPUID_VENDOR_AMDisbetterI_edx)
+                       return true;
+       }
+
+       /* default: (not Intel, not AMD), apply Intel's stricter rules... */
+       return false;
+}
+
 static int em_syscall(struct x86_emulate_ctxt *ctxt)
 {
        struct x86_emulate_ops *ops = ctxt->ops;
@@ -1904,9 +1949,15 @@ static int em_syscall(struct x86_emulate_ctxt *ctxt)
            ctxt->mode == X86EMUL_MODE_VM86)
                return emulate_ud(ctxt);
 
+       if (!(em_syscall_is_enabled(ctxt)))
+               return emulate_ud(ctxt);
+
        ops->get_msr(ctxt, MSR_EFER, &efer);
        setup_syscalls_segments(ctxt, &cs, &ss);
 
+       if (!(efer & EFER_SCE))
+               return emulate_ud(ctxt);
+
        ops->get_msr(ctxt, MSR_STAR, &msr_data);
        msr_data >>= 32;
        cs_sel = (u16)(msr_data & 0xfffc);
index 14d6cad..9cbfc06 100644 (file)
@@ -1495,6 +1495,8 @@ static void record_steal_time(struct kvm_vcpu *vcpu)
 
 int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 {
+       bool pr = false;
+
        switch (msr) {
        case MSR_EFER:
                return set_efer(vcpu, data);
@@ -1635,6 +1637,18 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
                pr_unimpl(vcpu, "unimplemented perfctr wrmsr: "
                        "0x%x data 0x%llx\n", msr, data);
                break;
+       case MSR_P6_PERFCTR0:
+       case MSR_P6_PERFCTR1:
+               pr = true;
+       case MSR_P6_EVNTSEL0:
+       case MSR_P6_EVNTSEL1:
+               if (kvm_pmu_msr(vcpu, msr))
+                       return kvm_pmu_set_msr(vcpu, msr, data);
+
+               if (pr || data != 0)
+                       pr_unimpl(vcpu, "disabled perfctr wrmsr: "
+                               "0x%x data 0x%llx\n", msr, data);
+               break;
        case MSR_K7_CLK_CTL:
                /*
                 * Ignore all writes to this no longer documented MSR.
@@ -1835,6 +1849,14 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
        case MSR_FAM10H_MMIO_CONF_BASE:
                data = 0;
                break;
+       case MSR_P6_PERFCTR0:
+       case MSR_P6_PERFCTR1:
+       case MSR_P6_EVNTSEL0:
+       case MSR_P6_EVNTSEL1:
+               if (kvm_pmu_msr(vcpu, msr))
+                       return kvm_pmu_get_msr(vcpu, msr, pdata);
+               data = 0;
+               break;
        case MSR_IA32_UCODE_REV:
                data = 0x100000000ULL;
                break;
@@ -4180,6 +4202,28 @@ static int emulator_intercept(struct x86_emulate_ctxt *ctxt,
        return kvm_x86_ops->check_intercept(emul_to_vcpu(ctxt), info, stage);
 }
 
+static bool emulator_get_cpuid(struct x86_emulate_ctxt *ctxt,
+                              u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
+{
+       struct kvm_cpuid_entry2 *cpuid = NULL;
+
+       if (eax && ecx)
+               cpuid = kvm_find_cpuid_entry(emul_to_vcpu(ctxt),
+                                           *eax, *ecx);
+
+       if (cpuid) {
+               *eax = cpuid->eax;
+               *ecx = cpuid->ecx;
+               if (ebx)
+                       *ebx = cpuid->ebx;
+               if (edx)
+                       *edx = cpuid->edx;
+               return true;
+       }
+
+       return false;
+}
+
 static struct x86_emulate_ops emulate_ops = {
        .read_std            = kvm_read_guest_virt_system,
        .write_std           = kvm_write_guest_virt_system,
@@ -4211,6 +4255,7 @@ static struct x86_emulate_ops emulate_ops = {
        .get_fpu             = emulator_get_fpu,
        .put_fpu             = emulator_put_fpu,
        .intercept           = emulator_intercept,
+       .get_cpuid           = emulator_get_cpuid,
 };
 
 static void cache_all_regs(struct kvm_vcpu *vcpu)
index 9d74824..f0b4caf 100644 (file)
@@ -673,7 +673,7 @@ no_context(struct pt_regs *regs, unsigned long error_code,
 
        stackend = end_of_stack(tsk);
        if (tsk != &init_task && *stackend != STACK_END_MAGIC)
-               printk(KERN_ALERT "Thread overran stack, or stack corrupted\n");
+               printk(KERN_EMERG "Thread overran stack, or stack corrupted\n");
 
        tsk->thread.cr2         = address;
        tsk->thread.trap_no     = 14;
@@ -684,7 +684,7 @@ no_context(struct pt_regs *regs, unsigned long error_code,
                sig = 0;
 
        /* Executive summary in case the body of the oops scrolled away */
-       printk(KERN_EMERG "CR2: %016lx\n", address);
+       printk(KERN_DEFAULT "CR2: %016lx\n", address);
 
        oops_end(flags, regs, sig);
 }
index 5fb8c27..405a8c4 100644 (file)
@@ -118,7 +118,4 @@ extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
 /* Don't build bcopy at all ...  */
 #define __HAVE_ARCH_BCOPY
 
-#define __HAVE_ARCH_MEMSCAN
-#define memscan memchr
-
 #endif /* _XTENSA_STRING_H */
index 2b805d7..8ae05ce 100644 (file)
@@ -586,13 +586,6 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
        if (pr->flags.need_hotplug_init)
                return 0;
 
-       /*
-        * Do not start hotplugged CPUs now, but when they
-        * are onlined the first time
-        */
-       if (pr->flags.need_hotplug_init)
-               return 0;
-
        result = acpi_processor_start(pr);
        if (result)
                goto err_remove_sysfs;
index 3fd31de..a6278e7 100644 (file)
@@ -380,6 +380,7 @@ static int rbd_get_client(struct rbd_device *rbd_dev, const char *mon_addr,
        rbdc = __rbd_client_find(opt);
        if (rbdc) {
                ceph_destroy_options(opt);
+               kfree(rbd_opts);
 
                /* using an existing client */
                kref_get(&rbdc->kref);
@@ -406,15 +407,15 @@ done_err:
 
 /*
  * Destroy ceph client
+ *
+ * Caller must hold node_lock.
  */
 static void rbd_client_release(struct kref *kref)
 {
        struct rbd_client *rbdc = container_of(kref, struct rbd_client, kref);
 
        dout("rbd_release_client %p\n", rbdc);
-       spin_lock(&node_lock);
        list_del(&rbdc->node);
-       spin_unlock(&node_lock);
 
        ceph_destroy_client(rbdc->client);
        kfree(rbdc->rbd_opts);
@@ -427,7 +428,9 @@ static void rbd_client_release(struct kref *kref)
  */
 static void rbd_put_client(struct rbd_device *rbd_dev)
 {
+       spin_lock(&node_lock);
        kref_put(&rbd_dev->rbd_client->kref, rbd_client_release);
+       spin_unlock(&node_lock);
        rbd_dev->rbd_client = NULL;
        rbd_dev->client = NULL;
 }
index 97f87b2..f4aed5f 100644 (file)
@@ -1343,7 +1343,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
 
                tasklet_init(&atchan->tasklet, atc_tasklet,
                                (unsigned long)atchan);
-               atc_enable_irq(atchan);
+               atc_enable_chan_irq(atdma, i);
        }
 
        /* set base routines */
@@ -1410,7 +1410,7 @@ static int __exit at_dma_remove(struct platform_device *pdev)
                struct at_dma_chan      *atchan = to_at_dma_chan(chan);
 
                /* Disable interrupts */
-               atc_disable_irq(atchan);
+               atc_disable_chan_irq(atdma, chan->chan_id);
                tasklet_disable(&atchan->tasklet);
 
                tasklet_kill(&atchan->tasklet);
index dcaedfc..a8d3277 100644 (file)
@@ -327,28 +327,27 @@ static void atc_dump_lli(struct at_dma_chan *atchan, struct at_lli *lli)
 }
 
 
-static void atc_setup_irq(struct at_dma_chan *atchan, int on)
+static void atc_setup_irq(struct at_dma *atdma, int chan_id, int on)
 {
-       struct at_dma   *atdma = to_at_dma(atchan->chan_common.device);
-       u32             ebci;
+       u32 ebci;
 
        /* enable interrupts on buffer transfer completion & error */
-       ebci =    AT_DMA_BTC(atchan->chan_common.chan_id)
-               | AT_DMA_ERR(atchan->chan_common.chan_id);
+       ebci =    AT_DMA_BTC(chan_id)
+               | AT_DMA_ERR(chan_id);
        if (on)
                dma_writel(atdma, EBCIER, ebci);
        else
                dma_writel(atdma, EBCIDR, ebci);
 }
 
-static inline void atc_enable_irq(struct at_dma_chan *atchan)
+static void atc_enable_chan_irq(struct at_dma *atdma, int chan_id)
 {
-       atc_setup_irq(atchan, 1);
+       atc_setup_irq(atdma, chan_id, 1);
 }
 
-static inline void atc_disable_irq(struct at_dma_chan *atchan)
+static void atc_disable_chan_irq(struct at_dma *atdma, int chan_id)
 {
-       atc_setup_irq(atchan, 0);
+       atc_setup_irq(atdma, chan_id, 0);
 }
 
 
index 2b8661b..24225f0 100644 (file)
@@ -599,7 +599,7 @@ static int dmatest_add_channel(struct dma_chan *chan)
        }
        if (dma_has_cap(DMA_PQ, dma_dev->cap_mask)) {
                cnt = dmatest_add_threads(dtc, DMA_PQ);
-               thread_count += cnt > 0 ?: 0;
+               thread_count += cnt > 0 ? cnt : 0;
        }
 
        pr_info("dmatest: Started %u threads using %s\n",
index a8af379..8bc5acf 100644 (file)
@@ -1102,11 +1102,13 @@ static int sdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
        case DMA_SLAVE_CONFIG:
                if (dmaengine_cfg->direction == DMA_DEV_TO_MEM) {
                        sdmac->per_address = dmaengine_cfg->src_addr;
-                       sdmac->watermark_level = dmaengine_cfg->src_maxburst;
+                       sdmac->watermark_level = dmaengine_cfg->src_maxburst *
+                                               dmaengine_cfg->src_addr_width;
                        sdmac->word_size = dmaengine_cfg->src_addr_width;
                } else {
                        sdmac->per_address = dmaengine_cfg->dst_addr;
-                       sdmac->watermark_level = dmaengine_cfg->dst_maxburst;
+                       sdmac->watermark_level = dmaengine_cfg->dst_maxburst *
+                                               dmaengine_cfg->dst_addr_width;
                        sdmac->word_size = dmaengine_cfg->dst_addr_width;
                }
                sdmac->direction = dmaengine_cfg->direction;
index 54043cd..812fd76 100644 (file)
@@ -1262,7 +1262,8 @@ static int __init sh_dmae_probe(struct platform_device *pdev)
 
        INIT_LIST_HEAD(&shdev->common.channels);
 
-       dma_cap_set(DMA_MEMCPY, shdev->common.cap_mask);
+       if (!pdata->slave_only)
+               dma_cap_set(DMA_MEMCPY, shdev->common.cap_mask);
        if (pdata->slave && pdata->slave_num)
                dma_cap_set(DMA_SLAVE, shdev->common.cap_mask);
 
index 6628fea..7f5f0da 100644 (file)
@@ -263,6 +263,7 @@ static inline struct fw_ohci *fw_ohci(struct fw_card *card)
 static char ohci_driver_name[] = KBUILD_MODNAME;
 
 #define PCI_DEVICE_ID_AGERE_FW643      0x5901
+#define PCI_DEVICE_ID_CREATIVE_SB1394  0x4001
 #define PCI_DEVICE_ID_JMICRON_JMB38X_FW        0x2380
 #define PCI_DEVICE_ID_TI_TSB12LV22     0x8009
 #define PCI_DEVICE_ID_TI_TSB12LV26     0x8020
@@ -289,6 +290,9 @@ static const struct {
        {PCI_VENDOR_ID_ATT, PCI_DEVICE_ID_AGERE_FW643, 6,
                QUIRK_NO_MSI},
 
+       {PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_SB1394, PCI_ANY_ID,
+               QUIRK_RESET_PACKET},
+
        {PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, PCI_ANY_ID,
                QUIRK_NO_MSI},
 
@@ -299,7 +303,7 @@ static const struct {
                QUIRK_NO_MSI},
 
        {PCI_VENDOR_ID_RICOH, PCI_ANY_ID, PCI_ANY_ID,
-               QUIRK_CYCLE_TIMER},
+               QUIRK_CYCLE_TIMER | QUIRK_NO_MSI},
 
        {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, PCI_ANY_ID,
                QUIRK_CYCLE_TIMER | QUIRK_RESET_PACKET | QUIRK_NO_1394A},
index 5b69480..ddfacc5 100644 (file)
@@ -96,7 +96,7 @@ static const char *gpio_p2_names[LPC32XX_GPIO_P2_MAX] = {
 };
 
 static const char *gpio_p3_names[LPC32XX_GPIO_P3_MAX] = {
-       "gpi000", "gpio01", "gpio02", "gpio03",
+       "gpio00", "gpio01", "gpio02", "gpio03",
        "gpio04", "gpio05"
 };
 
index 03d6dd5..f0febe5 100644 (file)
@@ -448,6 +448,7 @@ static int __devinit ioh_gpio_probe(struct pci_dev *pdev,
                chip->reg = chip->base;
                chip->ch = i;
                mutex_init(&chip->lock);
+               spin_lock_init(&chip->spinlock);
                ioh_gpio_setup(chip, num_ports[i]);
                ret = gpiochip_add(&chip->gpio);
                if (ret) {
index 68fa55e..e8729cc 100644 (file)
@@ -392,6 +392,7 @@ static int __devinit pch_gpio_probe(struct pci_dev *pdev,
        chip->reg = chip->base;
        pci_set_drvdata(pdev, chip);
        mutex_init(&chip->lock);
+       spin_lock_init(&chip->spinlock);
        pch_gpio_setup(chip);
        ret = gpiochip_add(&chip->gpio);
        if (ret) {
index a766177..0a79a11 100644 (file)
@@ -2387,27 +2387,30 @@ static struct samsung_gpio_chip exynos4_gpios_3[] = {
 };
 
 #if defined(CONFIG_ARCH_EXYNOS4) && defined(CONFIG_OF)
-static int exynos4_gpio_xlate(struct gpio_chip *gc, struct device_node *np,
-                             const void *gpio_spec, u32 *flags)
+static int exynos4_gpio_xlate(struct gpio_chip *gc,
+                       const struct of_phandle_args *gpiospec, u32 *flags)
 {
-       const __be32 *gpio = gpio_spec;
-       const u32 n = be32_to_cpup(gpio);
-       unsigned int pin = gc->base + be32_to_cpu(gpio[0]);
+       unsigned int pin;
 
        if (WARN_ON(gc->of_gpio_n_cells < 4))
                return -EINVAL;
 
-       if (n > gc->ngpio)
+       if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells))
                return -EINVAL;
 
-       if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(be32_to_cpu(gpio[1]))))
+       if (gpiospec->args[0] > gc->ngpio)
+               return -EINVAL;
+
+       pin = gc->base + gpiospec->args[0];
+
+       if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(gpiospec->args[1])))
                pr_warn("gpio_xlate: failed to set pin function\n");
-       if (s3c_gpio_setpull(pin, be32_to_cpu(gpio[2])))
+       if (s3c_gpio_setpull(pin, gpiospec->args[2]))
                pr_warn("gpio_xlate: failed to set pin pull up/down\n");
-       if (s5p_gpio_set_drvstr(pin, be32_to_cpu(gpio[3])))
+       if (s5p_gpio_set_drvstr(pin, gpiospec->args[3]))
                pr_warn("gpio_xlate: failed to set pin drive strength\n");
 
-       return n;
+       return gpiospec->args[0];
 }
 
 static const struct of_device_id exynos4_gpio_dt_match[] __initdata = {
index 1e382ad..a37c31e 100644 (file)
@@ -54,9 +54,10 @@ struct bit_entry {
 int bit_table(struct drm_device *, u8 id, struct bit_entry *);
 
 enum dcb_gpio_tag {
-       DCB_GPIO_TVDAC0 = 0xc,
+       DCB_GPIO_PANEL_POWER = 0x01,
+       DCB_GPIO_TVDAC0 = 0x0c,
        DCB_GPIO_TVDAC1 = 0x2d,
-       DCB_GPIO_PWM_FAN = 0x9,
+       DCB_GPIO_PWM_FAN = 0x09,
        DCB_GPIO_FAN_SENSE = 0x3d,
        DCB_GPIO_UNUSED = 0xff
 };
index 3cb52bc..795a9e3 100644 (file)
@@ -219,6 +219,16 @@ nouveau_display_init(struct drm_device *dev)
        if (ret)
                return ret;
 
+       /* power on internal panel if it's not already.  the init tables of
+        * some vbios default this to off for some reason, causing the
+        * panel to not work after resume
+        */
+       if (nouveau_gpio_func_get(dev, DCB_GPIO_PANEL_POWER) == 0) {
+               nouveau_gpio_func_set(dev, DCB_GPIO_PANEL_POWER, true);
+               msleep(300);
+       }
+
+       /* enable polling for external displays */
        drm_kms_helper_poll_enable(dev);
 
        /* enable hotplug interrupts */
index e4a7cfe..81d7962 100644 (file)
@@ -124,7 +124,7 @@ MODULE_PARM_DESC(ctxfw, "Use external HUB/GPC ucode (fermi)\n");
 int nouveau_ctxfw;
 module_param_named(ctxfw, nouveau_ctxfw, int, 0400);
 
-MODULE_PARM_DESC(ctxfw, "Santise DCB table according to MXM-SIS\n");
+MODULE_PARM_DESC(mxmdcb, "Santise DCB table according to MXM-SIS\n");
 int nouveau_mxmdcb = 1;
 module_param_named(mxmdcb, nouveau_mxmdcb, int, 0400);
 
index 5f0bc57..7ce3fde 100644 (file)
@@ -380,6 +380,25 @@ retry:
 }
 
 static int
+validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
+{
+       struct nouveau_fence *fence = NULL;
+       int ret = 0;
+
+       spin_lock(&nvbo->bo.bdev->fence_lock);
+       if (nvbo->bo.sync_obj)
+               fence = nouveau_fence_ref(nvbo->bo.sync_obj);
+       spin_unlock(&nvbo->bo.bdev->fence_lock);
+
+       if (fence) {
+               ret = nouveau_fence_sync(fence, chan);
+               nouveau_fence_unref(&fence);
+       }
+
+       return ret;
+}
+
+static int
 validate_list(struct nouveau_channel *chan, struct list_head *list,
              struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
 {
@@ -393,7 +412,7 @@ validate_list(struct nouveau_channel *chan, struct list_head *list,
        list_for_each_entry(nvbo, list, entry) {
                struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
 
-               ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
+               ret = validate_sync(chan, nvbo);
                if (unlikely(ret)) {
                        NV_ERROR(dev, "fail pre-validate sync\n");
                        return ret;
@@ -416,7 +435,7 @@ validate_list(struct nouveau_channel *chan, struct list_head *list,
                        return ret;
                }
 
-               ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
+               ret = validate_sync(chan, nvbo);
                if (unlikely(ret)) {
                        NV_ERROR(dev, "fail post-validate sync\n");
                        return ret;
index 8bccddf..e5a64f0 100644 (file)
@@ -656,7 +656,16 @@ nouveau_mxm_init(struct drm_device *dev)
 
        if (mxm_shadow(dev, mxm[0])) {
                MXM_MSG(dev, "failed to locate valid SIS\n");
+#if 0
+               /* we should, perhaps, fall back to some kind of limited
+                * mode here if the x86 vbios hasn't already done the
+                * work for us (so we prevent loading with completely
+                * whacked vbios tables).
+                */
                return -EINVAL;
+#else
+               return 0;
+#endif
        }
 
        MXM_MSG(dev, "MXMS Version %d.%d\n",
index 0393721..ec5481d 100644 (file)
@@ -495,9 +495,9 @@ nv50_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
        struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct nv50_pm_state *info;
        struct pll_lims pll;
-       int ret = -EINVAL;
+       int clk, ret = -EINVAL;
        int N, M, P1, P2;
-       u32 clk, out;
+       u32 out;
 
        if (dev_priv->chipset == 0xaa ||
            dev_priv->chipset == 0xac)
index 8919352..742f17f 100644 (file)
@@ -1184,7 +1184,7 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
        WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
 
        WREG32(EVERGREEN_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
-              crtc->mode.vdisplay);
+              target_fb->height);
        x &= ~3;
        y &= ~1;
        WREG32(EVERGREEN_VIEWPORT_START + radeon_crtc->crtc_offset,
@@ -1353,7 +1353,7 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
        WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
 
        WREG32(AVIVO_D1MODE_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
-              crtc->mode.vdisplay);
+              target_fb->height);
        x &= ~3;
        y &= ~1;
        WREG32(AVIVO_D1MODE_VIEWPORT_START + radeon_crtc->crtc_offset,
index a71557c..552b436 100644 (file)
@@ -564,9 +564,21 @@ int radeon_dp_get_panel_mode(struct drm_encoder *encoder,
            ENCODER_OBJECT_ID_NUTMEG)
                panel_mode = DP_PANEL_MODE_INTERNAL_DP1_MODE;
        else if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) ==
-                ENCODER_OBJECT_ID_TRAVIS)
-               panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;
-       else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
+                ENCODER_OBJECT_ID_TRAVIS) {
+               u8 id[6];
+               int i;
+               for (i = 0; i < 6; i++)
+                       id[i] = radeon_read_dpcd_reg(radeon_connector, 0x503 + i);
+               if (id[0] == 0x73 &&
+                   id[1] == 0x69 &&
+                   id[2] == 0x76 &&
+                   id[3] == 0x61 &&
+                   id[4] == 0x72 &&
+                   id[5] == 0x54)
+                       panel_mode = DP_PANEL_MODE_INTERNAL_DP1_MODE;
+               else
+                       panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;
+       } else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
                u8 tmp = radeon_read_dpcd_reg(radeon_connector, DP_EDP_CONFIGURATION_CAP);
                if (tmp & 1)
                        panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;
index d996f43..accc032 100644 (file)
@@ -468,27 +468,42 @@ set_default_state(struct radeon_device *rdev)
        radeon_ring_write(ring, sq_stack_resource_mgmt_2);
 }
 
+#define I2F_MAX_BITS 15
+#define I2F_MAX_INPUT  ((1 << I2F_MAX_BITS) - 1)
+#define I2F_SHIFT (24 - I2F_MAX_BITS)
+
+/*
+ * Converts unsigned integer into 32-bit IEEE floating point representation.
+ * Conversion is not universal and only works for the range from 0
+ * to 2^I2F_MAX_BITS-1. Currently we only use it with inputs between
+ * 0 and 16384 (inclusive), so I2F_MAX_BITS=15 is enough. If necessary,
+ * I2F_MAX_BITS can be increased, but that will add to the loop iterations
+ * and slow us down. Conversion is done by shifting the input and counting
+ * down until the first 1 reaches bit position 23. The resulting counter
+ * and the shifted input are, respectively, the exponent and the fraction.
+ * The sign is always zero.
+ */
 static uint32_t i2f(uint32_t input)
 {
        u32 result, i, exponent, fraction;
 
-       if ((input & 0x3fff) == 0)
-               result = 0; /* 0 is a special case */
+       WARN_ON_ONCE(input > I2F_MAX_INPUT);
+
+       if ((input & I2F_MAX_INPUT) == 0)
+               result = 0;
        else {
-               exponent = 140; /* exponent biased by 127; */
-               fraction = (input & 0x3fff) << 10; /* cheat and only
-                                                     handle numbers below 2^^15 */
-               for (i = 0; i < 14; i++) {
+               exponent = 126 + I2F_MAX_BITS;
+               fraction = (input & I2F_MAX_INPUT) << I2F_SHIFT;
+
+               for (i = 0; i < I2F_MAX_BITS; i++) {
                        if (fraction & 0x800000)
                                break;
                        else {
-                               fraction = fraction << 1; /* keep
-                                                            shifting left until top bit = 1 */
+                               fraction = fraction << 1;
                                exponent = exponent - 1;
                        }
                }
-               result = exponent << 23 | (fraction & 0x7fffff); /* mask
-                                                                   off top bit; assumed 1 */
+               result = exponent << 23 | (fraction & 0x7fffff);
        }
        return result;
 }
index 13ac63b..98724fc 100644 (file)
@@ -59,8 +59,9 @@ static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios,
 
        obj = (union acpi_object *)buffer.pointer;
        memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);
+       len = obj->buffer.length;
        kfree(buffer.pointer);
-       return obj->buffer.length;
+       return len;
 }
 
 bool radeon_atrm_supported(struct pci_dev *pdev)
index cec51a5..49f7cb7 100644 (file)
@@ -883,6 +883,8 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
        if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
                return 0;
 
+       drm_kms_helper_poll_disable(dev);
+
        /* turn off display hw */
        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
@@ -972,6 +974,8 @@ int radeon_resume_kms(struct drm_device *dev)
        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
        }
+
+       drm_kms_helper_poll_enable(dev);
        return 0;
 }
 
index e2a393f..98a8ad6 100644 (file)
@@ -958,6 +958,7 @@ struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
        i2c->rec = *rec;
        i2c->adapter.owner = THIS_MODULE;
        i2c->adapter.class = I2C_CLASS_DDC;
+       i2c->adapter.dev.parent = &dev->pdev->dev;
        i2c->dev = dev;
        snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
                 "Radeon aux bus %s", name);
index 0c33ae9..4066324 100644 (file)
@@ -548,6 +548,7 @@ static int mousevsc_remove(struct hv_device *dev)
        struct mousevsc_dev *input_dev = hv_get_drvdata(dev);
 
        vmbus_close(dev->channel);
+       hid_hw_stop(input_dev->hid_device);
        hid_destroy_device(input_dev->hid_device);
        mousevsc_free_device(input_dev);
 
index b47e58b..acab74c 100644 (file)
@@ -531,7 +531,6 @@ static int wacom_probe(struct hid_device *hdev,
        wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
        wdata->battery.use_for_apm = 0;
 
-       power_supply_powers(&wdata->battery, &hdev->dev);
 
        ret = power_supply_register(&hdev->dev, &wdata->battery);
        if (ret) {
@@ -540,6 +539,8 @@ static int wacom_probe(struct hid_device *hdev,
                goto err_battery;
        }
 
+       power_supply_powers(&wdata->battery, &hdev->dev);
+
        wdata->ac.properties = wacom_ac_props;
        wdata->ac.num_properties = ARRAY_SIZE(wacom_ac_props);
        wdata->ac.get_property = wacom_ac_get_property;
@@ -547,14 +548,14 @@ static int wacom_probe(struct hid_device *hdev,
        wdata->ac.type = POWER_SUPPLY_TYPE_MAINS;
        wdata->ac.use_for_apm = 0;
 
-       power_supply_powers(&wdata->battery, &hdev->dev);
-
        ret = power_supply_register(&hdev->dev, &wdata->ac);
        if (ret) {
                hid_warn(hdev,
                         "can't create ac battery attribute, err: %d\n", ret);
                goto err_ac;
        }
+
+       power_supply_powers(&wdata->ac, &hdev->dev);
 #endif
        return 0;
 
index fc253b4..cac3589 100644 (file)
@@ -1226,14 +1226,14 @@ static int wiimote_hid_probe(struct hid_device *hdev,
        wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
        wdata->battery.use_for_apm = 0;
 
-       power_supply_powers(&wdata->battery, &hdev->dev);
-
        ret = power_supply_register(&wdata->hdev->dev, &wdata->battery);
        if (ret) {
                hid_err(hdev, "Cannot register battery device\n");
                goto err_battery;
        }
 
+       power_supply_powers(&wdata->battery, &hdev->dev);
+
        ret = wiimote_leds_create(wdata);
        if (ret)
                goto err_free;
index 7c297d3..b1ec0e2 100644 (file)
@@ -922,11 +922,11 @@ void hiddev_disconnect(struct hid_device *hid)
        struct hiddev *hiddev = hid->hiddev;
        struct usbhid_device *usbhid = hid->driver_data;
 
+       usb_deregister_dev(usbhid->intf, &hiddev_class);
+
        mutex_lock(&hiddev->existancelock);
        hiddev->exist = 0;
 
-       usb_deregister_dev(usbhid->intf, &hiddev_class);
-
        if (hiddev->open) {
                mutex_unlock(&hiddev->existancelock);
                usbhid_close(hiddev->hid);
index 2dfae7d..4d383e7 100644 (file)
@@ -1920,9 +1920,26 @@ w83627ehf_check_fan_inputs(const struct w83627ehf_sio_data *sio_data,
                fan4min = 0;
                fan5pin = 0;
        } else if (sio_data->kind == nct6776) {
-               fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
-               fan4pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x01);
-               fan5pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x02);
+               bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80;
+
+               superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
+               regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE);
+
+               if (regval & 0x80)
+                       fan3pin = gpok;
+               else
+                       fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
+
+               if (regval & 0x40)
+                       fan4pin = gpok;
+               else
+                       fan4pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x01);
+
+               if (regval & 0x20)
+                       fan5pin = gpok;
+               else
+                       fan5pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x02);
+
                fan4min = fan4pin;
        } else if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) {
                fan3pin = 1;
index f713eac..801df60 100644 (file)
@@ -1018,7 +1018,7 @@ omap_i2c_probe(struct platform_device *pdev)
                goto err_release_region;
        }
 
-       match = of_match_device(omap_i2c_of_match, &pdev->dev);
+       match = of_match_device(of_match_ptr(omap_i2c_of_match), &pdev->dev);
        if (match) {
                u32 freq = 100000; /* default to 100000 Hz */
 
index 76457d5..afc166f 100644 (file)
@@ -386,7 +386,7 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
        struct evdev_client *client = file->private_data;
        struct evdev *evdev = client->evdev;
        struct input_event event;
-       int retval;
+       int retval = 0;
 
        if (count < input_event_size())
                return -EINVAL;
index a588578..67bec14 100644 (file)
@@ -34,7 +34,6 @@
 #include <linux/i2c/twl.h>
 #include <linux/slab.h>
 
-
 /*
  * The TWL4030 family chips include a keypad controller that supports
  * up to an 8x8 switch matrix.  The controller can issue system wakeup
@@ -302,7 +301,7 @@ static int __devinit twl4030_kp_program(struct twl4030_keypad *kp)
        if (twl4030_kpwrite_u8(kp, i, KEYP_DEB) < 0)
                return -EIO;
 
-       /* Set timeout period to 100 ms */
+       /* Set timeout period to 200 ms */
        i = KEYP_PERIOD_US(200000, PTV_PRESCALER);
        if (twl4030_kpwrite_u8(kp, (i & 0xFF), KEYP_TIMEOUT_L) < 0)
                return -EIO;
@@ -466,4 +465,3 @@ MODULE_AUTHOR("Texas Instruments");
 MODULE_DESCRIPTION("TWL4030 Keypad Driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:twl4030_keypad");
-
index b4cfc6c..5ec774d 100644 (file)
@@ -512,6 +512,13 @@ static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
                        DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
                },
        },
+       {
+               /* Lenovo Ideapad U455 */
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
+               },
+       },
        { }
 };
 
index 8250299..4494233 100644 (file)
@@ -164,7 +164,8 @@ static ssize_t serio_raw_read(struct file *file, char __user *buffer,
        struct serio_raw_client *client = file->private_data;
        struct serio_raw *serio_raw = client->serio_raw;
        char uninitialized_var(c);
-       ssize_t retval = 0;
+       ssize_t read = 0;
+       int retval;
 
        if (serio_raw->dead)
                return -ENODEV;
@@ -180,13 +181,15 @@ static ssize_t serio_raw_read(struct file *file, char __user *buffer,
        if (serio_raw->dead)
                return -ENODEV;
 
-       while (retval < count && serio_raw_fetch_byte(serio_raw, &c)) {
-               if (put_user(c, buffer++))
-                       return -EFAULT;
-               retval++;
+       while (read < count && serio_raw_fetch_byte(serio_raw, &c)) {
+               if (put_user(c, buffer++)) {
+                       retval = -EFAULT;
+                       break;
+               }
+               read++;
        }
 
-       return retval;
+       return read ?: retval;
 }
 
 static ssize_t serio_raw_write(struct file *file, const char __user *buffer,
index dda8629..b2d8e51 100644 (file)
@@ -282,6 +282,7 @@ int twl6040_power(struct twl6040 *twl6040, int on)
                /* Default PLL configuration after power up */
                twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL;
                twl6040->sysclk = 19200000;
+               twl6040->mclk = 32768;
        } else {
                /* already powered-down */
                if (!twl6040->power_count) {
@@ -305,6 +306,7 @@ int twl6040_power(struct twl6040 *twl6040, int on)
                        twl6040_power_down(twl6040);
                }
                twl6040->sysclk = 0;
+               twl6040->mclk = 0;
        }
 
 out:
@@ -324,23 +326,38 @@ int twl6040_set_pll(struct twl6040 *twl6040, int pll_id,
        hppllctl = twl6040_reg_read(twl6040, TWL6040_REG_HPPLLCTL);
        lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL);
 
+       /* Force full reconfiguration when switching between PLL */
+       if (pll_id != twl6040->pll) {
+               twl6040->sysclk = 0;
+               twl6040->mclk = 0;
+       }
+
        switch (pll_id) {
        case TWL6040_SYSCLK_SEL_LPPLL:
                /* low-power PLL divider */
-               switch (freq_out) {
-               case 17640000:
-                       lppllctl |= TWL6040_LPLLFIN;
-                       break;
-               case 19200000:
-                       lppllctl &= ~TWL6040_LPLLFIN;
-                       break;
-               default:
-                       dev_err(twl6040->dev,
-                               "freq_out %d not supported\n", freq_out);
-                       ret = -EINVAL;
-                       goto pll_out;
+               /* Change the sysclk configuration only if it has been canged */
+               if (twl6040->sysclk != freq_out) {
+                       switch (freq_out) {
+                       case 17640000:
+                               lppllctl |= TWL6040_LPLLFIN;
+                               break;
+                       case 19200000:
+                               lppllctl &= ~TWL6040_LPLLFIN;
+                               break;
+                       default:
+                               dev_err(twl6040->dev,
+                                       "freq_out %d not supported\n",
+                                       freq_out);
+                               ret = -EINVAL;
+                               goto pll_out;
+                       }
+                       twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
+                                         lppllctl);
                }
-               twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
+
+               /* The PLL in use has not been change, we can exit */
+               if (twl6040->pll == pll_id)
+                       break;
 
                switch (freq_in) {
                case 32768:
@@ -371,48 +388,56 @@ int twl6040_set_pll(struct twl6040 *twl6040, int pll_id,
                        goto pll_out;
                }
 
-               hppllctl &= ~TWL6040_MCLK_MSK;
+               if (twl6040->mclk != freq_in) {
+                       hppllctl &= ~TWL6040_MCLK_MSK;
+
+                       switch (freq_in) {
+                       case 12000000:
+                               /* PLL enabled, active mode */
+                               hppllctl |= TWL6040_MCLK_12000KHZ |
+                                           TWL6040_HPLLENA;
+                               break;
+                       case 19200000:
+                               /*
+                               * PLL disabled
+                               * (enable PLL if MCLK jitter quality
+                               *  doesn't meet specification)
+                               */
+                               hppllctl |= TWL6040_MCLK_19200KHZ;
+                               break;
+                       case 26000000:
+                               /* PLL enabled, active mode */
+                               hppllctl |= TWL6040_MCLK_26000KHZ |
+                                           TWL6040_HPLLENA;
+                               break;
+                       case 38400000:
+                               /* PLL enabled, active mode */
+                               hppllctl |= TWL6040_MCLK_38400KHZ |
+                                           TWL6040_HPLLENA;
+                               break;
+                       default:
+                               dev_err(twl6040->dev,
+                                       "freq_in %d not supported\n", freq_in);
+                               ret = -EINVAL;
+                               goto pll_out;
+                       }
 
-               switch (freq_in) {
-               case 12000000:
-                       /* PLL enabled, active mode */
-                       hppllctl |= TWL6040_MCLK_12000KHZ |
-                                   TWL6040_HPLLENA;
-                       break;
-               case 19200000:
                        /*
-                        * PLL disabled
-                        * (enable PLL if MCLK jitter quality
-                        *  doesn't meet specification)
+                        * enable clock slicer to ensure input waveform is
+                        * square
                         */
-                       hppllctl |= TWL6040_MCLK_19200KHZ;
-                       break;
-               case 26000000:
-                       /* PLL enabled, active mode */
-                       hppllctl |= TWL6040_MCLK_26000KHZ |
-                                   TWL6040_HPLLENA;
-                       break;
-               case 38400000:
-                       /* PLL enabled, active mode */
-                       hppllctl |= TWL6040_MCLK_38400KHZ |
-                                   TWL6040_HPLLENA;
-                       break;
-               default:
-                       dev_err(twl6040->dev,
-                               "freq_in %d not supported\n", freq_in);
-                       ret = -EINVAL;
-                       goto pll_out;
-               }
+                       hppllctl |= TWL6040_HPLLSQRENA;
 
-               /* enable clock slicer to ensure input waveform is square */
-               hppllctl |= TWL6040_HPLLSQRENA;
-
-               twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, hppllctl);
-               usleep_range(500, 700);
-               lppllctl |= TWL6040_HPLLSEL;
-               twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
-               lppllctl &= ~TWL6040_LPLLENA;
-               twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
+                       twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL,
+                                         hppllctl);
+                       usleep_range(500, 700);
+                       lppllctl |= TWL6040_HPLLSEL;
+                       twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
+                                         lppllctl);
+                       lppllctl &= ~TWL6040_LPLLENA;
+                       twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
+                                         lppllctl);
+               }
                break;
        default:
                dev_err(twl6040->dev, "unknown pll id %d\n", pll_id);
@@ -421,6 +446,7 @@ int twl6040_set_pll(struct twl6040 *twl6040, int pll_id,
        }
 
        twl6040->sysclk = freq_out;
+       twl6040->mclk = freq_in;
        twl6040->pll = pll_id;
 
 pll_out:
index 150cd70..28adefe 100644 (file)
@@ -354,6 +354,7 @@ static void lkdtm_do_action(enum ctype which)
 static void lkdtm_handler(void)
 {
        unsigned long flags;
+       bool do_it = false;
 
        spin_lock_irqsave(&count_lock, flags);
        count--;
@@ -361,10 +362,13 @@ static void lkdtm_handler(void)
                        cp_name_to_str(cpoint), cp_type_to_str(cptype), count);
 
        if (count == 0) {
-               lkdtm_do_action(cptype);
+               do_it = true;
                count = cpoint_count;
        }
        spin_unlock_irqrestore(&count_lock, flags);
+
+       if (do_it)
+               lkdtm_do_action(cptype);
 }
 
 static int lkdtm_register_cpoint(enum cname which)
index 6ae9ca0..9a9ce71 100644 (file)
@@ -119,7 +119,7 @@ static int mtd_cls_suspend(struct device *dev, pm_message_t state)
 {
        struct mtd_info *mtd = dev_get_drvdata(dev);
 
-       return mtd_suspend(mtd);
+       return mtd ? mtd_suspend(mtd) : 0;
 }
 
 static int mtd_cls_resume(struct device *dev)
index 4dd056e..35b4fb5 100644 (file)
@@ -161,6 +161,37 @@ static int atmel_nand_device_ready(struct mtd_info *mtd)
                 !!host->board->rdy_pin_active_low;
 }
 
+/*
+ * Minimal-overhead PIO for data access.
+ */
+static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len)
+{
+       struct nand_chip        *nand_chip = mtd->priv;
+
+       __raw_readsb(nand_chip->IO_ADDR_R, buf, len);
+}
+
+static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len)
+{
+       struct nand_chip        *nand_chip = mtd->priv;
+
+       __raw_readsw(nand_chip->IO_ADDR_R, buf, len / 2);
+}
+
+static void atmel_write_buf8(struct mtd_info *mtd, const u8 *buf, int len)
+{
+       struct nand_chip        *nand_chip = mtd->priv;
+
+       __raw_writesb(nand_chip->IO_ADDR_W, buf, len);
+}
+
+static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len)
+{
+       struct nand_chip        *nand_chip = mtd->priv;
+
+       __raw_writesw(nand_chip->IO_ADDR_W, buf, len / 2);
+}
+
 static void dma_complete_func(void *completion)
 {
        complete(completion);
@@ -235,27 +266,33 @@ err_buf:
 static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
        struct nand_chip *chip = mtd->priv;
+       struct atmel_nand_host *host = chip->priv;
 
        if (use_dma && len > mtd->oobsize)
                /* only use DMA for bigger than oob size: better performances */
                if (atmel_nand_dma_op(mtd, buf, len, 1) == 0)
                        return;
 
-       /* if no DMA operation possible, use PIO */
-       memcpy_fromio(buf, chip->IO_ADDR_R, len);
+       if (host->board->bus_width_16)
+               atmel_read_buf16(mtd, buf, len);
+       else
+               atmel_read_buf8(mtd, buf, len);
 }
 
 static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
        struct nand_chip *chip = mtd->priv;
+       struct atmel_nand_host *host = chip->priv;
 
        if (use_dma && len > mtd->oobsize)
                /* only use DMA for bigger than oob size: better performances */
                if (atmel_nand_dma_op(mtd, (void *)buf, len, 0) == 0)
                        return;
 
-       /* if no DMA operation possible, use PIO */
-       memcpy_toio(chip->IO_ADDR_W, buf, len);
+       if (host->board->bus_width_16)
+               atmel_write_buf16(mtd, buf, len);
+       else
+               atmel_write_buf8(mtd, buf, len);
 }
 
 /*
index 7f68042..7db6555 100644 (file)
@@ -69,17 +69,19 @@ static int clear_poll_bit(void __iomem *addr, u32 mask)
  *  [1] enable the module.
  *  [2] reset the module.
  *
- * In most of the cases, it's ok. But there is a hardware bug in the BCH block.
+ * In most of the cases, it's ok.
+ * But in MX23, there is a hardware bug in the BCH block (see erratum #2847).
  * If you try to soft reset the BCH block, it becomes unusable until
  * the next hard reset. This case occurs in the NAND boot mode. When the board
  * boots by NAND, the ROM of the chip will initialize the BCH blocks itself.
  * So If the driver tries to reset the BCH again, the BCH will not work anymore.
- * You will see a DMA timeout in this case.
+ * You will see a DMA timeout in this case. The bug has been fixed
+ * in the following chips, such as MX28.
  *
  * To avoid this bug, just add a new parameter `just_enable` for
  * the mxs_reset_block(), and rewrite it here.
  */
-int gpmi_reset_block(void __iomem *reset_addr, bool just_enable)
+static int gpmi_reset_block(void __iomem *reset_addr, bool just_enable)
 {
        int ret;
        int timeout = 0x400;
@@ -206,7 +208,15 @@ int bch_set_geometry(struct gpmi_nand_data *this)
        if (ret)
                goto err_out;
 
-       ret = gpmi_reset_block(r->bch_regs, true);
+       /*
+       * Due to erratum #2847 of the MX23, the BCH cannot be soft reset on this
+       * chip, otherwise it will lock up. So we skip resetting BCH on the MX23.
+       * On the other hand, the MX28 needs the reset, because one case has been
+       * seen where the BCH produced ECC errors constantly after 10000
+       * consecutive reboots. The latter case has not been seen on the MX23 yet,
+       * still we don't know if it could happen there as well.
+       */
+       ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MX23(this));
        if (ret)
                goto err_out;
 
index 35b4565..8a393f9 100644 (file)
@@ -2588,7 +2588,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
        instr->state = MTD_ERASING;
 
        while (len) {
-               /* Heck if we have a bad block, we do not erase bad blocks! */
+               /* Check if we have a bad block, we do not erase bad blocks! */
                if (nand_block_checkbad(mtd, ((loff_t) page) <<
                                        chip->page_shift, 0, allowbbt)) {
                        pr_warn("%s: attempt to erase a bad block at page 0x%08x\n",
index 70e006b..5443e25 100644 (file)
@@ -1279,3 +1279,4 @@ static struct usb_driver go7007_usb_driver = {
 };
 
 module_usb_driver(go7007_usb_driver);
+MODULE_LICENSE("GPL v2");
index 5e096f4..65447c5 100644 (file)
@@ -1463,7 +1463,6 @@ compat_kdfontop_ioctl(struct compat_console_font_op __user *fontop,
        if (!perm && op->op != KD_FONT_OP_GET)
                return -EPERM;
        op->data = compat_ptr(((struct compat_console_font_op *)op)->data);
-       op->flags |= KD_FONT_FLAG_OLD;
        i = con_font_op(vc, op);
        if (i)
                return i;
index b60fc8b..620daad 100644 (file)
@@ -641,10 +641,10 @@ static int __cap_is_valid(struct ceph_cap *cap)
        unsigned long ttl;
        u32 gen;
 
-       spin_lock(&cap->session->s_cap_lock);
+       spin_lock(&cap->session->s_gen_ttl_lock);
        gen = cap->session->s_cap_gen;
        ttl = cap->session->s_cap_ttl;
-       spin_unlock(&cap->session->s_cap_lock);
+       spin_unlock(&cap->session->s_gen_ttl_lock);
 
        if (cap->cap_gen < gen || time_after_eq(jiffies, ttl)) {
                dout("__cap_is_valid %p cap %p issued %s "
index 618246b..3e8094b 100644 (file)
@@ -975,10 +975,10 @@ static int dentry_lease_is_valid(struct dentry *dentry)
        di = ceph_dentry(dentry);
        if (di->lease_session) {
                s = di->lease_session;
-               spin_lock(&s->s_cap_lock);
+               spin_lock(&s->s_gen_ttl_lock);
                gen = s->s_cap_gen;
                ttl = s->s_cap_ttl;
-               spin_unlock(&s->s_cap_lock);
+               spin_unlock(&s->s_gen_ttl_lock);
 
                if (di->lease_gen == gen &&
                    time_before(jiffies, dentry->d_time) &&
index 23ab6a3..866e8d7 100644 (file)
@@ -262,6 +262,7 @@ static int parse_reply_info(struct ceph_msg *msg,
        /* trace */
        ceph_decode_32_safe(&p, end, len, bad);
        if (len > 0) {
+               ceph_decode_need(&p, end, len, bad);
                err = parse_reply_info_trace(&p, p+len, info, features);
                if (err < 0)
                        goto out_bad;
@@ -270,6 +271,7 @@ static int parse_reply_info(struct ceph_msg *msg,
        /* extra */
        ceph_decode_32_safe(&p, end, len, bad);
        if (len > 0) {
+               ceph_decode_need(&p, end, len, bad);
                err = parse_reply_info_extra(&p, p+len, info, features);
                if (err < 0)
                        goto out_bad;
@@ -398,9 +400,11 @@ static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc,
        s->s_con.peer_name.type = CEPH_ENTITY_TYPE_MDS;
        s->s_con.peer_name.num = cpu_to_le64(mds);
 
-       spin_lock_init(&s->s_cap_lock);
+       spin_lock_init(&s->s_gen_ttl_lock);
        s->s_cap_gen = 0;
        s->s_cap_ttl = 0;
+
+       spin_lock_init(&s->s_cap_lock);
        s->s_renew_requested = 0;
        s->s_renew_seq = 0;
        INIT_LIST_HEAD(&s->s_caps);
@@ -2326,10 +2330,10 @@ static void handle_session(struct ceph_mds_session *session,
        case CEPH_SESSION_STALE:
                pr_info("mds%d caps went stale, renewing\n",
                        session->s_mds);
-               spin_lock(&session->s_cap_lock);
+               spin_lock(&session->s_gen_ttl_lock);
                session->s_cap_gen++;
                session->s_cap_ttl = 0;
-               spin_unlock(&session->s_cap_lock);
+               spin_unlock(&session->s_gen_ttl_lock);
                send_renew_caps(mdsc, session);
                break;
 
index a50ca0e..8c7c04e 100644 (file)
@@ -117,10 +117,13 @@ struct ceph_mds_session {
        void             *s_authorizer_buf, *s_authorizer_reply_buf;
        size_t            s_authorizer_buf_len, s_authorizer_reply_buf_len;
 
-       /* protected by s_cap_lock */
-       spinlock_t        s_cap_lock;
+       /* protected by s_gen_ttl_lock */
+       spinlock_t        s_gen_ttl_lock;
        u32               s_cap_gen;  /* inc each time we get mds stale msg */
        unsigned long     s_cap_ttl;  /* when session caps expire */
+
+       /* protected by s_cap_lock */
+       spinlock_t        s_cap_lock;
        struct list_head  s_caps;     /* all caps issued by this session */
        int               s_nr_caps, s_trim_caps;
        int               s_num_cap_releases;
index 857214a..a76f697 100644 (file)
@@ -111,8 +111,10 @@ static size_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
 }
 
 static struct ceph_vxattr_cb ceph_file_vxattrs[] = {
+       { true, "ceph.file.layout", ceph_vxattrcb_layout},
+       /* The following extended attribute name is deprecated */
        { true, "ceph.layout", ceph_vxattrcb_layout},
-       { NULL, NULL }
+       { true, NULL, NULL }
 };
 
 static struct ceph_vxattr_cb *ceph_inode_vxattrs(struct inode *inode)
index 0554b00..2b243af 100644 (file)
@@ -139,7 +139,7 @@ config CIFS_DFS_UPCALL
            points. If unsure, say N.
 
 config CIFS_FSCACHE
-         bool "Provide CIFS client caching support (EXPERIMENTAL)"
+         bool "Provide CIFS client caching support"
          depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
          help
            Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
@@ -147,7 +147,7 @@ config CIFS_FSCACHE
            manager. If unsure, say N.
 
 config CIFS_ACL
-         bool "Provide CIFS ACL support (EXPERIMENTAL)"
+         bool "Provide CIFS ACL support"
          depends on CIFS_XATTR && KEYS
          help
            Allows to fetch CIFS/NTFS ACL from the server.  The DACL blob
index 986709a..9c28865 100644 (file)
@@ -2142,14 +2142,14 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
 
        len = delim - payload;
        if (len > MAX_USERNAME_SIZE || len <= 0) {
-               cFYI(1, "Bad value from username search (len=%ld)", len);
+               cFYI(1, "Bad value from username search (len=%zd)", len);
                rc = -EINVAL;
                goto out_key_put;
        }
 
        vol->username = kstrndup(payload, len, GFP_KERNEL);
        if (!vol->username) {
-               cFYI(1, "Unable to allocate %ld bytes for username", len);
+               cFYI(1, "Unable to allocate %zd bytes for username", len);
                rc = -ENOMEM;
                goto out_key_put;
        }
@@ -2157,7 +2157,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
 
        len = key->datalen - (len + 1);
        if (len > MAX_PASSWORD_SIZE || len <= 0) {
-               cFYI(1, "Bad len for password search (len=%ld)", len);
+               cFYI(1, "Bad len for password search (len=%zd)", len);
                rc = -EINVAL;
                kfree(vol->username);
                vol->username = NULL;
@@ -2167,7 +2167,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
        ++delim;
        vol->password = kstrndup(delim, len, GFP_KERNEL);
        if (!vol->password) {
-               cFYI(1, "Unable to allocate %ld bytes for password", len);
+               cFYI(1, "Unable to allocate %zd bytes for password", len);
                rc = -ENOMEM;
                kfree(vol->username);
                vol->username = NULL;
@@ -3857,10 +3857,8 @@ cifs_construct_tcon(struct cifs_sb_info *cifs_sb, uid_t fsuid)
        struct smb_vol *vol_info;
 
        vol_info = kzalloc(sizeof(*vol_info), GFP_KERNEL);
-       if (vol_info == NULL) {
-               tcon = ERR_PTR(-ENOMEM);
-               goto out;
-       }
+       if (vol_info == NULL)
+               return ERR_PTR(-ENOMEM);
 
        vol_info->local_nls = cifs_sb->local_nls;
        vol_info->linux_uid = fsuid;
index d85efad..551d0c2 100644 (file)
@@ -246,16 +246,15 @@ static void ascii_ssetup_strings(char **pbcc_area, struct cifs_ses *ses,
        /* copy user */
        /* BB what about null user mounts - check that we do this BB */
        /* copy user */
-       if (ses->user_name != NULL)
+       if (ses->user_name != NULL) {
                strncpy(bcc_ptr, ses->user_name, MAX_USERNAME_SIZE);
+               bcc_ptr += strnlen(ses->user_name, MAX_USERNAME_SIZE);
+       }
        /* else null user mount */
-
-       bcc_ptr += strnlen(ses->user_name, MAX_USERNAME_SIZE);
        *bcc_ptr = 0;
        bcc_ptr++; /* account for null termination */
 
        /* copy domain */
-
        if (ses->domainName != NULL) {
                strncpy(bcc_ptr, ses->domainName, 256);
                bcc_ptr += strnlen(ses->domainName, 256);
@@ -395,6 +394,10 @@ static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
        ses->ntlmssp->server_flags = le32_to_cpu(pblob->NegotiateFlags);
        tioffset = le32_to_cpu(pblob->TargetInfoArray.BufferOffset);
        tilen = le16_to_cpu(pblob->TargetInfoArray.Length);
+       if (tioffset > blob_len || tioffset + tilen > blob_len) {
+               cERROR(1, "tioffset + tilen too high %u + %u", tioffset, tilen);
+               return -EINVAL;
+       }
        if (tilen) {
                ses->auth_key.response = kmalloc(tilen, GFP_KERNEL);
                if (!ses->auth_key.response) {
index aeb135c..92ce83a 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1071,6 +1071,21 @@ void set_task_comm(struct task_struct *tsk, char *buf)
        perf_event_comm(tsk);
 }
 
+static void filename_to_taskname(char *tcomm, const char *fn, unsigned int len)
+{
+       int i, ch;
+
+       /* Copies the binary name from after last slash */
+       for (i = 0; (ch = *(fn++)) != '\0';) {
+               if (ch == '/')
+                       i = 0; /* overwrite what we wrote */
+               else
+                       if (i < len - 1)
+                               tcomm[i++] = ch;
+       }
+       tcomm[i] = '\0';
+}
+
 int flush_old_exec(struct linux_binprm * bprm)
 {
        int retval;
@@ -1085,6 +1100,7 @@ int flush_old_exec(struct linux_binprm * bprm)
 
        set_mm_exe_file(bprm->mm, bprm->file);
 
+       filename_to_taskname(bprm->tcomm, bprm->filename, sizeof(bprm->tcomm));
        /*
         * Release all of the old mmap stuff
         */
@@ -1116,10 +1132,6 @@ EXPORT_SYMBOL(would_dump);
 
 void setup_new_exec(struct linux_binprm * bprm)
 {
-       int i, ch;
-       const char *name;
-       char tcomm[sizeof(current->comm)];
-
        arch_pick_mmap_layout(current->mm);
 
        /* This is the point of no return */
@@ -1130,18 +1142,7 @@ void setup_new_exec(struct linux_binprm * bprm)
        else
                set_dumpable(current->mm, suid_dumpable);
 
-       name = bprm->filename;
-
-       /* Copies the binary name from after last slash */
-       for (i=0; (ch = *(name++)) != '\0';) {
-               if (ch == '/')
-                       i = 0; /* overwrite what we wrote */
-               else
-                       if (i < (sizeof(tcomm) - 1))
-                               tcomm[i++] = ch;
-       }
-       tcomm[i] = '\0';
-       set_task_comm(current, tcomm);
+       set_task_comm(current, bprm->tcomm);
 
        /* Set the new mm task size. We have to do that late because it may
         * depend on TIF_32BIT which is only updated in flush_thread() on
index a01cdad..eafb8d3 100644 (file)
@@ -335,7 +335,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
        void *ebuf;
        uint32_t ofs;
        size_t retlen;
-       int ret = -EIO;
+       int ret;
        unsigned long *wordebuf;
 
        ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen,
index d9512bd..d4548dd 100644 (file)
@@ -198,26 +198,6 @@ static int proc_root_link(struct dentry *dentry, struct path *path)
        return result;
 }
 
-static struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
-{
-       struct mm_struct *mm;
-       int err;
-
-       err =  mutex_lock_killable(&task->signal->cred_guard_mutex);
-       if (err)
-               return ERR_PTR(err);
-
-       mm = get_task_mm(task);
-       if (mm && mm != current->mm &&
-                       !ptrace_may_access(task, mode)) {
-               mmput(mm);
-               mm = ERR_PTR(-EACCES);
-       }
-       mutex_unlock(&task->signal->cred_guard_mutex);
-
-       return mm;
-}
-
 struct mm_struct *mm_for_maps(struct task_struct *task)
 {
        return mm_access(task, PTRACE_MODE_READ);
index 8de4b73..e58fcf8 100644 (file)
@@ -15,6 +15,16 @@ struct pci_dev;
 #ifdef CONFIG_PCI
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+/* Create a virtual mapping cookie for a port on a given PCI device.
+ * Do not call this directly, it exists to make it easier for architectures
+ * to override */
+#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
+extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
+                                     unsigned int nr);
+#else
+#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
+#endif
+
 #else
 static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
 {
index fd88a39..0092102 100644 (file)
@@ -18,7 +18,7 @@ struct pt_regs;
 #define BINPRM_BUF_SIZE 128
 
 #ifdef __KERNEL__
-#include <linux/list.h>
+#include <linux/sched.h>
 
 #define CORENAME_MAX_SIZE 128
 
@@ -58,6 +58,7 @@ struct linux_binprm {
        unsigned interp_flags;
        unsigned interp_data;
        unsigned long loader, exec;
+       char tcomm[TASK_COMM_LEN];
 };
 
 #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
index b5ca4b2..004ff33 100644 (file)
@@ -1,6 +1,8 @@
 #ifndef _GPIO_KEYS_H
 #define _GPIO_KEYS_H
 
+struct device;
+
 struct gpio_keys_button {
        /* Configuration parameters */
        unsigned int code;      /* input event code (KEY_*, SW_*) */
old mode 100755 (executable)
new mode 100644 (file)
index 2463c26..9bc9ac6 100644 (file)
@@ -187,8 +187,10 @@ struct twl6040 {
        int rev;
        u8 vibra_ctrl_cache[2];
 
+       /* PLL configuration */
        int pll;
        unsigned int sysclk;
+       unsigned int mclk;
 
        unsigned int irq;
        unsigned int irq_base;
index 06f8899..d02cca6 100644 (file)
@@ -57,8 +57,6 @@ struct gcry_mpi {
 
 typedef struct gcry_mpi *MPI;
 
-#define MPI_NULL NULL
-
 #define mpi_get_nlimbs(a)     ((a)->nlimbs)
 #define mpi_is_neg(a)        ((a)->sign)
 
index 887ebe3..d43dc25 100644 (file)
@@ -427,9 +427,7 @@ static inline int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 
 static inline int mtd_suspend(struct mtd_info *mtd)
 {
-       if (!mtd->suspend)
-               return -EOPNOTSUPP;
-       return mtd->suspend(mtd);
+       return mtd->suspend ? mtd->suspend(mtd) : 0;
 }
 
 static inline void mtd_resume(struct mtd_info *mtd)
index 0885561..abb2776 100644 (file)
@@ -587,6 +587,7 @@ struct hw_perf_event {
        u64                             sample_period;
        u64                             last_period;
        local64_t                       period_left;
+       u64                             interrupts_seq;
        u64                             interrupts;
 
        u64                             freq_time_stamp;
index e5bbcba..4d99e4e 100644 (file)
@@ -110,7 +110,19 @@ static inline void pm_qos_remove_request(struct pm_qos_request *req)
                        { return; }
 
 static inline int pm_qos_request(int pm_qos_class)
-                       { return 0; }
+{
+       switch (pm_qos_class) {
+       case PM_QOS_CPU_DMA_LATENCY:
+               return PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+       case PM_QOS_NETWORK_LATENCY:
+               return PM_QOS_NETWORK_LAT_DEFAULT_VALUE;
+       case PM_QOS_NETWORK_THROUGHPUT:
+               return PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE;
+       default:
+               return PM_QOS_DEFAULT_VALUE;
+       }
+}
+
 static inline int pm_qos_add_notifier(int pm_qos_class,
                                      struct notifier_block *notifier)
                        { return 0; }
index 2234985..7d379a6 100644 (file)
@@ -2259,6 +2259,12 @@ static inline void mmdrop(struct mm_struct * mm)
 extern void mmput(struct mm_struct *);
 /* Grab a reference to a task's mm, if it is not already going away */
 extern struct mm_struct *get_task_mm(struct task_struct *task);
+/*
+ * Grab a reference to a task's mm, if it is not already going away
+ * and ptrace_may_access with the mode parameter passed to it
+ * succeeds.
+ */
+extern struct mm_struct *mm_access(struct task_struct *task, unsigned int mode);
 /* Remove the current tasks stale references to the old mm_struct */
 extern void mm_release(struct task_struct *, struct mm_struct *);
 /* Allocate a new mm structure and copy contents from tsk->mm */
index 8cd7fe5..425450b 100644 (file)
@@ -70,6 +70,7 @@ struct sh_dmae_pdata {
        unsigned int needs_tend_set:1;
        unsigned int no_dmars:1;
        unsigned int chclr_present:1;
+       unsigned int slave_only:1;
 };
 
 /* DMA register */
index 5ab255f..cea1b54 100644 (file)
@@ -417,6 +417,7 @@ static inline int __snd_bug_on(int cond)
 #define gameport_get_port_data(gp) (gp)->port_data
 #endif
 
+#ifdef CONFIG_PCI
 /* PCI quirk list helper */
 struct snd_pci_quirk {
        unsigned short subvendor;       /* PCI subvendor ID */
@@ -456,5 +457,6 @@ snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list);
 const struct snd_pci_quirk *
 snd_pci_quirk_lookup_id(u16 vendor, u16 device,
                        const struct snd_pci_quirk *list);
+#endif
 
 #endif /* __SOUND_CORE_H */
index 32b48c8..ba36013 100644 (file)
@@ -2300,6 +2300,9 @@ do {                                      \
        return div64_u64(dividend, divisor);
 }
 
+static DEFINE_PER_CPU(int, perf_throttled_count);
+static DEFINE_PER_CPU(u64, perf_throttled_seq);
+
 static void perf_adjust_period(struct perf_event *event, u64 nsec, u64 count)
 {
        struct hw_perf_event *hwc = &event->hw;
@@ -2325,16 +2328,29 @@ static void perf_adjust_period(struct perf_event *event, u64 nsec, u64 count)
        }
 }
 
-static void perf_ctx_adjust_freq(struct perf_event_context *ctx, u64 period)
+/*
+ * combine freq adjustment with unthrottling to avoid two passes over the
+ * events. At the same time, make sure, having freq events does not change
+ * the rate of unthrottling as that would introduce bias.
+ */
+static void perf_adjust_freq_unthr_context(struct perf_event_context *ctx,
+                                          int needs_unthr)
 {
        struct perf_event *event;
        struct hw_perf_event *hwc;
-       u64 interrupts, now;
+       u64 now, period = TICK_NSEC;
        s64 delta;
 
-       if (!ctx->nr_freq)
+       /*
+        * only need to iterate over all events iff:
+        * - context have events in frequency mode (needs freq adjust)
+        * - there are events to unthrottle on this cpu
+        */
+       if (!(ctx->nr_freq || needs_unthr))
                return;
 
+       raw_spin_lock(&ctx->lock);
+
        list_for_each_entry_rcu(event, &ctx->event_list, event_entry) {
                if (event->state != PERF_EVENT_STATE_ACTIVE)
                        continue;
@@ -2344,13 +2360,8 @@ static void perf_ctx_adjust_freq(struct perf_event_context *ctx, u64 period)
 
                hwc = &event->hw;
 
-               interrupts = hwc->interrupts;
-               hwc->interrupts = 0;
-
-               /*
-                * unthrottle events on the tick
-                */
-               if (interrupts == MAX_INTERRUPTS) {
+               if (needs_unthr && hwc->interrupts == MAX_INTERRUPTS) {
+                       hwc->interrupts = 0;
                        perf_log_throttle(event, 1);
                        event->pmu->start(event, 0);
                }
@@ -2358,14 +2369,26 @@ static void perf_ctx_adjust_freq(struct perf_event_context *ctx, u64 period)
                if (!event->attr.freq || !event->attr.sample_freq)
                        continue;
 
-               event->pmu->read(event);
+               /*
+                * stop the event and update event->count
+                */
+               event->pmu->stop(event, PERF_EF_UPDATE);
+
                now = local64_read(&event->count);
                delta = now - hwc->freq_count_stamp;
                hwc->freq_count_stamp = now;
 
+               /*
+                * restart the event
+                * reload only if value has changed
+                */
                if (delta > 0)
                        perf_adjust_period(event, period, delta);
+
+               event->pmu->start(event, delta > 0 ? PERF_EF_RELOAD : 0);
        }
+
+       raw_spin_unlock(&ctx->lock);
 }
 
 /*
@@ -2388,16 +2411,13 @@ static void rotate_ctx(struct perf_event_context *ctx)
  */
 static void perf_rotate_context(struct perf_cpu_context *cpuctx)
 {
-       u64 interval = (u64)cpuctx->jiffies_interval * TICK_NSEC;
        struct perf_event_context *ctx = NULL;
-       int rotate = 0, remove = 1, freq = 0;
+       int rotate = 0, remove = 1;
 
        if (cpuctx->ctx.nr_events) {
                remove = 0;
                if (cpuctx->ctx.nr_events != cpuctx->ctx.nr_active)
                        rotate = 1;
-               if (cpuctx->ctx.nr_freq)
-                       freq = 1;
        }
 
        ctx = cpuctx->task_ctx;
@@ -2405,37 +2425,26 @@ static void perf_rotate_context(struct perf_cpu_context *cpuctx)
                remove = 0;
                if (ctx->nr_events != ctx->nr_active)
                        rotate = 1;
-               if (ctx->nr_freq)
-                       freq = 1;
        }
 
-       if (!rotate && !freq)
+       if (!rotate)
                goto done;
 
        perf_ctx_lock(cpuctx, cpuctx->task_ctx);
        perf_pmu_disable(cpuctx->ctx.pmu);
 
-       if (freq) {
-               perf_ctx_adjust_freq(&cpuctx->ctx, interval);
-               if (ctx)
-                       perf_ctx_adjust_freq(ctx, interval);
-       }
-
-       if (rotate) {
-               cpu_ctx_sched_out(cpuctx, EVENT_FLEXIBLE);
-               if (ctx)
-                       ctx_sched_out(ctx, cpuctx, EVENT_FLEXIBLE);
+       cpu_ctx_sched_out(cpuctx, EVENT_FLEXIBLE);
+       if (ctx)
+               ctx_sched_out(ctx, cpuctx, EVENT_FLEXIBLE);
 
-               rotate_ctx(&cpuctx->ctx);
-               if (ctx)
-                       rotate_ctx(ctx);
+       rotate_ctx(&cpuctx->ctx);
+       if (ctx)
+               rotate_ctx(ctx);
 
-               perf_event_sched_in(cpuctx, ctx, current);
-       }
+       perf_event_sched_in(cpuctx, ctx, current);
 
        perf_pmu_enable(cpuctx->ctx.pmu);
        perf_ctx_unlock(cpuctx, cpuctx->task_ctx);
-
 done:
        if (remove)
                list_del_init(&cpuctx->rotation_list);
@@ -2445,10 +2454,22 @@ void perf_event_task_tick(void)
 {
        struct list_head *head = &__get_cpu_var(rotation_list);
        struct perf_cpu_context *cpuctx, *tmp;
+       struct perf_event_context *ctx;
+       int throttled;
 
        WARN_ON(!irqs_disabled());
 
+       __this_cpu_inc(perf_throttled_seq);
+       throttled = __this_cpu_xchg(perf_throttled_count, 0);
+
        list_for_each_entry_safe(cpuctx, tmp, head, rotation_list) {
+               ctx = &cpuctx->ctx;
+               perf_adjust_freq_unthr_context(ctx, throttled);
+
+               ctx = cpuctx->task_ctx;
+               if (ctx)
+                       perf_adjust_freq_unthr_context(ctx, throttled);
+
                if (cpuctx->jiffies_interval == 1 ||
                                !(jiffies % cpuctx->jiffies_interval))
                        perf_rotate_context(cpuctx);
@@ -4509,6 +4530,7 @@ static int __perf_event_overflow(struct perf_event *event,
 {
        int events = atomic_read(&event->event_limit);
        struct hw_perf_event *hwc = &event->hw;
+       u64 seq;
        int ret = 0;
 
        /*
@@ -4518,14 +4540,20 @@ static int __perf_event_overflow(struct perf_event *event,
        if (unlikely(!is_sampling_event(event)))
                return 0;
 
-       if (unlikely(hwc->interrupts >= max_samples_per_tick)) {
-               if (throttle) {
+       seq = __this_cpu_read(perf_throttled_seq);
+       if (seq != hwc->interrupts_seq) {
+               hwc->interrupts_seq = seq;
+               hwc->interrupts = 1;
+       } else {
+               hwc->interrupts++;
+               if (unlikely(throttle
+                            && hwc->interrupts >= max_samples_per_tick)) {
+                       __this_cpu_inc(perf_throttled_count);
                        hwc->interrupts = MAX_INTERRUPTS;
                        perf_log_throttle(event, 0);
                        ret = 1;
                }
-       } else
-               hwc->interrupts++;
+       }
 
        if (event->attr.freq) {
                u64 now = perf_clock();
index 294b170..4b4042f 100644 (file)
@@ -1038,6 +1038,22 @@ void do_exit(long code)
        if (tsk->nr_dirtied)
                __this_cpu_add(dirty_throttle_leaks, tsk->nr_dirtied);
        exit_rcu();
+
+       /*
+        * The setting of TASK_RUNNING by try_to_wake_up() may be delayed
+        * when the following two conditions become true.
+        *   - There is race condition of mmap_sem (It is acquired by
+        *     exit_mm()), and
+        *   - SMI occurs before setting TASK_RUNINNG.
+        *     (or hypervisor of virtual machine switches to other guest)
+        *  As a result, we may become TASK_RUNNING after becoming TASK_DEAD
+        *
+        * To avoid it, we have to wait for releasing tsk->pi_lock which
+        * is held by try_to_wake_up()
+        */
+       smp_mb();
+       raw_spin_unlock_wait(&tsk->pi_lock);
+
        /* causes final put_task_struct in finish_task_switch(). */
        tsk->state = TASK_DEAD;
        tsk->flags |= PF_NOFREEZE;      /* tell freezer to ignore us */
index 051f090..1b2ef3c 100644 (file)
@@ -647,6 +647,26 @@ struct mm_struct *get_task_mm(struct task_struct *task)
 }
 EXPORT_SYMBOL_GPL(get_task_mm);
 
+struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
+{
+       struct mm_struct *mm;
+       int err;
+
+       err =  mutex_lock_killable(&task->signal->cred_guard_mutex);
+       if (err)
+               return ERR_PTR(err);
+
+       mm = get_task_mm(task);
+       if (mm && mm != current->mm &&
+                       !ptrace_may_access(task, mode)) {
+               mmput(mm);
+               mm = ERR_PTR(-EACCES);
+       }
+       mutex_unlock(&task->signal->cred_guard_mutex);
+
+       return mm;
+}
+
 /* Please note the differences between mmput and mm_release.
  * mmput is called whenever we stop holding onto a mm_struct,
  * error success whatever.
index 29f5b65..9788c0e 100644 (file)
@@ -1673,8 +1673,12 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p,
                ri->rp = rp;
                ri->task = current;
 
-               if (rp->entry_handler && rp->entry_handler(ri, regs))
+               if (rp->entry_handler && rp->entry_handler(ri, regs)) {
+                       raw_spin_lock_irqsave(&rp->lock, flags);
+                       hlist_add_head(&ri->hlist, &rp->free_instances);
+                       raw_spin_unlock_irqrestore(&rp->lock, flags);
                        return 0;
+               }
 
                arch_prepare_kretprobe(ri, regs);
 
index 0c4defe..21724ee 100644 (file)
@@ -231,8 +231,28 @@ extern int pm_test_level;
 #ifdef CONFIG_SUSPEND_FREEZER
 static inline int suspend_freeze_processes(void)
 {
-       int error = freeze_processes();
-       return error ? : freeze_kernel_threads();
+       int error;
+
+       error = freeze_processes();
+
+       /*
+        * freeze_processes() automatically thaws every task if freezing
+        * fails. So we need not do anything extra upon error.
+        */
+       if (error)
+               goto Finish;
+
+       error = freeze_kernel_threads();
+
+       /*
+        * freeze_kernel_threads() thaws only kernel threads upon freezing
+        * failure. So we have to thaw the userspace tasks ourselves.
+        */
+       if (error)
+               thaw_processes();
+
+ Finish:
+       return error;
 }
 
 static inline void suspend_thaw_processes(void)
index eeca003..7e42645 100644 (file)
@@ -143,7 +143,10 @@ int freeze_processes(void)
 /**
  * freeze_kernel_threads - Make freezable kernel threads go to the refrigerator.
  *
- * On success, returns 0.  On failure, -errno and system is fully thawed.
+ * On success, returns 0.  On failure, -errno and only the kernel threads are
+ * thawed, so as to give a chance to the caller to do additional cleanups
+ * (if any) before thawing the userspace tasks. So, it is the responsibility
+ * of the caller to thaw the userspace tasks, when the time is right.
  */
 int freeze_kernel_threads(void)
 {
@@ -159,7 +162,7 @@ int freeze_kernel_threads(void)
        BUG_ON(in_atomic());
 
        if (error)
-               thaw_processes();
+               thaw_kernel_threads();
        return error;
 }
 
index e5a21a8..3e10007 100644 (file)
@@ -249,13 +249,15 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
                }
                pm_restore_gfp_mask();
                error = hibernation_snapshot(data->platform_support);
-               if (!error) {
+               if (error) {
+                       thaw_kernel_threads();
+               } else {
                        error = put_user(in_suspend, (int __user *)arg);
                        if (!error && !freezer_test_done)
                                data->ready = 1;
                        if (freezer_test_done) {
                                freezer_test_done = false;
-                               thaw_processes();
+                               thaw_kernel_threads();
                        }
                }
                break;
index df00cb0..5255c9d 100644 (file)
@@ -74,6 +74,7 @@
 
 #include <asm/tlb.h>
 #include <asm/irq_regs.h>
+#include <asm/mutex.h>
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
 #endif
@@ -723,9 +724,6 @@ static void dequeue_task(struct rq *rq, struct task_struct *p, int flags)
        p->sched_class->dequeue_task(rq, p, flags);
 }
 
-/*
- * activate_task - move a task to the runqueue.
- */
 void activate_task(struct rq *rq, struct task_struct *p, int flags)
 {
        if (task_contributes_to_load(p))
@@ -734,9 +732,6 @@ void activate_task(struct rq *rq, struct task_struct *p, int flags)
        enqueue_task(rq, p, flags);
 }
 
-/*
- * deactivate_task - remove a task from the runqueue.
- */
 void deactivate_task(struct rq *rq, struct task_struct *p, int flags)
 {
        if (task_contributes_to_load(p))
@@ -4134,7 +4129,7 @@ recheck:
        on_rq = p->on_rq;
        running = task_current(rq, p);
        if (on_rq)
-               deactivate_task(rq, p, 0);
+               dequeue_task(rq, p, 0);
        if (running)
                p->sched_class->put_prev_task(rq, p);
 
@@ -4147,7 +4142,7 @@ recheck:
        if (running)
                p->sched_class->set_curr_task(rq);
        if (on_rq)
-               activate_task(rq, p, 0);
+               enqueue_task(rq, p, 0);
 
        check_class_changed(rq, p, prev_class, oldprio);
        task_rq_unlock(rq, p, &flags);
@@ -4998,9 +4993,9 @@ static int __migrate_task(struct task_struct *p, int src_cpu, int dest_cpu)
         * placed properly.
         */
        if (p->on_rq) {
-               deactivate_task(rq_src, p, 0);
+               dequeue_task(rq_src, p, 0);
                set_task_cpu(p, dest_cpu);
-               activate_task(rq_dest, p, 0);
+               enqueue_task(rq_dest, p, 0);
                check_preempt_curr(rq_dest, p, 0);
        }
 done:
@@ -7032,10 +7027,10 @@ static void normalize_task(struct rq *rq, struct task_struct *p)
 
        on_rq = p->on_rq;
        if (on_rq)
-               deactivate_task(rq, p, 0);
+               dequeue_task(rq, p, 0);
        __setscheduler(rq, p, SCHED_NORMAL, 0);
        if (on_rq) {
-               activate_task(rq, p, 0);
+               enqueue_task(rq, p, 0);
                resched_task(rq->curr);
        }
 
index 84adb2d..7c6414f 100644 (file)
@@ -4866,6 +4866,15 @@ static void nohz_balancer_kick(int cpu)
        return;
 }
 
+static inline void clear_nohz_tick_stopped(int cpu)
+{
+       if (unlikely(test_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu)))) {
+               cpumask_clear_cpu(cpu, nohz.idle_cpus_mask);
+               atomic_dec(&nohz.nr_cpus);
+               clear_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu));
+       }
+}
+
 static inline void set_cpu_sd_state_busy(void)
 {
        struct sched_domain *sd;
@@ -4904,6 +4913,12 @@ void select_nohz_load_balancer(int stop_tick)
 {
        int cpu = smp_processor_id();
 
+       /*
+        * If this cpu is going down, then nothing needs to be done.
+        */
+       if (!cpu_active(cpu))
+               return;
+
        if (stop_tick) {
                if (test_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu)))
                        return;
@@ -4914,6 +4929,18 @@ void select_nohz_load_balancer(int stop_tick)
        }
        return;
 }
+
+static int __cpuinit sched_ilb_notifier(struct notifier_block *nfb,
+                                       unsigned long action, void *hcpu)
+{
+       switch (action & ~CPU_TASKS_FROZEN) {
+       case CPU_DYING:
+               clear_nohz_tick_stopped(smp_processor_id());
+               return NOTIFY_OK;
+       default:
+               return NOTIFY_DONE;
+       }
+}
 #endif
 
 static DEFINE_SPINLOCK(balancing);
@@ -5070,11 +5097,7 @@ static inline int nohz_kick_needed(struct rq *rq, int cpu)
        * busy tick after returning from idle, we will update the busy stats.
        */
        set_cpu_sd_state_busy();
-       if (unlikely(test_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu)))) {
-               clear_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu));
-               cpumask_clear_cpu(cpu, nohz.idle_cpus_mask);
-               atomic_dec(&nohz.nr_cpus);
-       }
+       clear_nohz_tick_stopped(cpu);
 
        /*
         * None are in tickless mode and hence no need for NOHZ idle load
@@ -5590,6 +5613,7 @@ __init void init_sched_fair_class(void)
 
 #ifdef CONFIG_NO_HZ
        zalloc_cpumask_var(&nohz.idle_cpus_mask, GFP_NOWAIT);
+       cpu_notifier(sched_ilb_notifier, 0);
 #endif
 #endif /* SMP */
 
index 3640ebb..f42ae7f 100644 (file)
@@ -1587,6 +1587,11 @@ static int push_rt_task(struct rq *rq)
        if (!next_task)
                return 0;
 
+#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
+       if (unlikely(task_running(rq, next_task)))
+               return 0;
+#endif
+
 retry:
        if (unlikely(next_task == rq->curr)) {
                WARN_ON(1);
index 1d7bca7..d117262 100644 (file)
@@ -296,7 +296,7 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
                if (__this_cpu_read(soft_watchdog_warn) == true)
                        return HRTIMER_RESTART;
 
-               printk(KERN_ERR "BUG: soft lockup - CPU#%d stuck for %us! [%s:%d]\n",
+               printk(KERN_EMERG "BUG: soft lockup - CPU#%d stuck for %us! [%s:%d]\n",
                        smp_processor_id(), duration,
                        current->comm, task_pid_nr(current));
                print_modules();
index 169eb7c..028aba9 100644 (file)
@@ -19,6 +19,9 @@ config RATIONAL
 config GENERIC_FIND_FIRST_BIT
        bool
 
+config NO_GENERIC_PCI_IOPORT_MAP
+       bool
+
 config GENERIC_PCI_IOMAP
        bool
 
@@ -279,6 +282,9 @@ config AVERAGE
 
          If unsure, say N.
 
+config CLZ_TAB
+       bool
+
 config CORDIC
        tristate "CORDIC algorithm"
        help
@@ -287,6 +293,7 @@ config CORDIC
 
 config MPILIB
        tristate
+       select CLZ_TAB
        help
          Multiprecision maths library from GnuPG.
          It is used to implement RSA digital signature verification,
index d71aae1..18515f0 100644 (file)
@@ -121,6 +121,8 @@ obj-$(CONFIG_DQL) += dynamic_queue_limits.o
 obj-$(CONFIG_MPILIB) += mpi/
 obj-$(CONFIG_SIGNATURE) += digsig.o
 
+obj-$(CONFIG_CLZ_TAB) += clz_tab.o
+
 hostprogs-y    := gen_crc32table
 clean-files    := crc32table.h
 
index 1955209..a28c141 100644 (file)
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -169,7 +169,7 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
                return BUG_TRAP_TYPE_WARN;
        }
 
-       printk(KERN_EMERG "------------[ cut here ]------------\n");
+       printk(KERN_DEFAULT "------------[ cut here ]------------\n");
 
        if (file)
                printk(KERN_CRIT "kernel BUG at %s:%u!\n",
diff --git a/lib/clz_tab.c b/lib/clz_tab.c
new file mode 100644 (file)
index 0000000..7287b4a
--- /dev/null
@@ -0,0 +1,18 @@
+const unsigned char __clz_tab[] = {
+       0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
+           5, 5, 5, 5, 5, 5, 5, 5,
+       6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+           6, 6, 6, 6, 6, 6, 6, 6,
+       7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+           7, 7, 7, 7, 7, 7, 7, 7,
+       7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+           7, 7, 7, 7, 7, 7, 7, 7,
+       8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+           8, 8, 8, 8, 8, 8, 8, 8,
+       8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+           8, 8, 8, 8, 8, 8, 8, 8,
+       8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+           8, 8, 8, 8, 8, 8, 8, 8,
+       8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+           8, 8, 8, 8, 8, 8, 8, 8,
+};
index fd2402f..286d558 100644 (file)
@@ -34,14 +34,9 @@ static int pkcs_1_v1_5_decode_emsa(const unsigned char *msg,
                        unsigned long  msglen,
                        unsigned long  modulus_bitlen,
                        unsigned char *out,
-                       unsigned long *outlen,
-                       int *is_valid)
+                       unsigned long *outlen)
 {
        unsigned long modulus_len, ps_len, i;
-       int result;
-
-       /* default to invalid packet */
-       *is_valid = 0;
 
        modulus_len = (modulus_bitlen >> 3) + (modulus_bitlen & 7 ? 1 : 0);
 
@@ -50,39 +45,30 @@ static int pkcs_1_v1_5_decode_emsa(const unsigned char *msg,
                return -EINVAL;
 
        /* separate encoded message */
-       if ((msg[0] != 0x00) || (msg[1] != (unsigned char)1)) {
-               result = -EINVAL;
-               goto bail;
-       }
+       if ((msg[0] != 0x00) || (msg[1] != (unsigned char)1))
+               return -EINVAL;
 
        for (i = 2; i < modulus_len - 1; i++)
                if (msg[i] != 0xFF)
                        break;
 
        /* separator check */
-       if (msg[i] != 0) {
+       if (msg[i] != 0)
                /* There was no octet with hexadecimal value 0x00
                to separate ps from m. */
-               result = -EINVAL;
-               goto bail;
-       }
+               return -EINVAL;
 
        ps_len = i - 2;
 
        if (*outlen < (msglen - (2 + ps_len + 1))) {
                *outlen = msglen - (2 + ps_len + 1);
-               result = -EOVERFLOW;
-               goto bail;
+               return -EOVERFLOW;
        }
 
        *outlen = (msglen - (2 + ps_len + 1));
        memcpy(out, &msg[2 + ps_len + 1], *outlen);
 
-       /* valid packet */
-       *is_valid = 1;
-       result    = 0;
-bail:
-       return result;
+       return 0;
 }
 
 /*
@@ -96,7 +82,7 @@ static int digsig_verify_rsa(struct key *key,
        unsigned long len;
        unsigned long mlen, mblen;
        unsigned nret, l;
-       int valid, head, i;
+       int head, i;
        unsigned char *out1 = NULL, *out2 = NULL;
        MPI in = NULL, res = NULL, pkey[2];
        uint8_t *p, *datap, *endp;
@@ -105,6 +91,10 @@ static int digsig_verify_rsa(struct key *key,
 
        down_read(&key->sem);
        ukp = key->payload.data;
+
+       if (ukp->datalen < sizeof(*pkh))
+               goto err1;
+
        pkh = (struct pubkey_hdr *)ukp->data;
 
        if (pkh->version != 1)
@@ -117,18 +107,23 @@ static int digsig_verify_rsa(struct key *key,
                goto err1;
 
        datap = pkh->mpi;
-       endp = datap + ukp->datalen;
+       endp = ukp->data + ukp->datalen;
+
+       err = -ENOMEM;
 
        for (i = 0; i < pkh->nmpi; i++) {
                unsigned int remaining = endp - datap;
                pkey[i] = mpi_read_from_buffer(datap, &remaining);
+               if (!pkey[i])
+                       goto err;
                datap += remaining;
        }
 
        mblen = mpi_get_nbits(pkey[0]);
        mlen = (mblen + 7)/8;
 
-       err = -ENOMEM;
+       if (mlen == 0)
+               goto err;
 
        out1 = kzalloc(mlen, GFP_KERNEL);
        if (!out1)
@@ -167,10 +162,9 @@ static int digsig_verify_rsa(struct key *key,
        memset(out1, 0, head);
        memcpy(out1 + head, p, l);
 
-       err = -EINVAL;
-       pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len, &valid);
+       err = pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len);
 
-       if (valid && len == hlen)
+       if (!err && len == hlen)
                err = memcmp(out2, h, hlen);
 
 err:
@@ -178,8 +172,8 @@ err:
        mpi_free(res);
        kfree(out1);
        kfree(out2);
-       mpi_free(pkey[0]);
-       mpi_free(pkey[1]);
+       while (--i >= 0)
+               mpi_free(pkey[i]);
 err1:
        up_read(&key->sem);
 
index b87487b..29f9862 100644 (file)
@@ -1200,18 +1200,40 @@ do { \
        "r" ((USItype)(v)) \
        : "%g1", "%g2" __AND_CLOBBER_CC)
 #define UMUL_TIME 39           /* 39 instructions */
-#endif
-#ifndef udiv_qrnnd
-#ifndef LONGLONG_STANDALONE
+/* It's quite necessary to add this much assembler for the sparc.
+   The default udiv_qrnnd (in C) is more than 10 times slower!  */
 #define udiv_qrnnd(q, r, n1, n0, d) \
-do { USItype __r; \
-       (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
-       (r) = __r; \
-} while (0)
-       extern USItype __udiv_qrnnd();
-#define UDIV_TIME 140
-#endif /* LONGLONG_STANDALONE */
-#endif /* udiv_qrnnd */
+  __asm__ ("! Inlined udiv_qrnnd\n\t"                                  \
+          "mov 32,%%g1\n\t"                                            \
+          "subcc       %1,%2,%%g0\n\t"                                 \
+          "1:  bcs     5f\n\t"                                         \
+          "addxcc %0,%0,%0     ! shift n1n0 and a q-bit in lsb\n\t"    \
+          "sub %1,%2,%1        ! this kills msb of n\n\t"              \
+          "addx        %1,%1,%1        ! so this can't give carry\n\t" \
+          "subcc       %%g1,1,%%g1\n\t"                                \
+          "2:  bne     1b\n\t"                                         \
+          "subcc       %1,%2,%%g0\n\t"                                 \
+          "bcs 3f\n\t"                                                 \
+          "addxcc %0,%0,%0     ! shift n1n0 and a q-bit in lsb\n\t"    \
+          "b           3f\n\t"                                         \
+          "sub %1,%2,%1        ! this kills msb of n\n\t"              \
+          "4:  sub     %1,%2,%1\n\t"                                   \
+          "5:  addxcc  %1,%1,%1\n\t"                                   \
+          "bcc 2b\n\t"                                                 \
+          "subcc       %%g1,1,%%g1\n\t"                                \
+          "! Got carry from n.  Subtract next step to cancel this carry.\n\t" \
+          "bne 4b\n\t"                                                 \
+          "addcc       %0,%0,%0        ! shift n1n0 and a 0-bit in lsb\n\t" \
+          "sub %1,%2,%1\n\t"                                           \
+          "3:  xnor    %0,0,%0\n\t"                                    \
+          "! End of inline udiv_qrnnd\n"                               \
+          : "=&r" ((USItype)(q)),                                      \
+            "=&r" ((USItype)(r))                                       \
+          : "r" ((USItype)(d)),                                        \
+            "1" ((USItype)(n1)),                                       \
+            "0" ((USItype)(n0)) : "%g1", "cc")
+#define UDIV_TIME (3+7*32)      /* 7 instructions/iteration. 32 iterations.  */
+#endif
 #endif /* __sparc__ */
 
 /***************************************
index 854c9c6..2f52662 100644 (file)
 #include "mpi-internal.h"
 #include "longlong.h"
 
-const unsigned char __clz_tab[] = {
-       0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
-           5, 5, 5, 5, 5, 5, 5, 5,
-       6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
-           6, 6, 6, 6, 6, 6, 6, 6,
-       7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
-           7, 7, 7, 7, 7, 7, 7, 7,
-       7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
-           7, 7, 7, 7, 7, 7, 7, 7,
-       8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
-           8, 8, 8, 8, 8, 8, 8, 8,
-       8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
-           8, 8, 8, 8, 8, 8, 8, 8,
-       8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
-           8, 8, 8, 8, 8, 8, 8, 8,
-       8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
-           8, 8, 8, 8, 8, 8, 8, 8,
-};
-
 #define A_LIMB_1 ((mpi_limb_t) 1)
 
 /****************
index c3087d1..f68cbbb 100644 (file)
@@ -149,6 +149,9 @@ int mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den)
        mpi_ptr_t marker[5];
        int markidx = 0;
 
+       if (!dsize)
+               return -EINVAL;
+
        memset(marker, 0, sizeof(marker));
 
        /* Ensure space is enough for quotient and remainder.
@@ -207,6 +210,8 @@ int mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den)
                 * numerator would be gradually overwritten by the quotient limbs.  */
                if (qp == np) { /* Copy NP object to temporary space.  */
                        np = marker[markidx++] = mpi_alloc_limb_space(nsize);
+                       if (!np)
+                               goto nomem;
                        MPN_COPY(np, qp, nsize);
                }
        } else                  /* Put quotient at top of remainder. */
index b04a3cf..67f3e79 100644 (file)
@@ -59,7 +59,7 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod)
        ep = exp->d;
 
        if (!msize)
-               msize = 1 / msize;      /* provoke a signal */
+               return -EINVAL;
 
        if (!esize) {
                /* Exponent is zero, result is 1 mod MOD, i.e., 1 or 0
index 716802b..f26b41f 100644 (file)
 
 #include "mpi-internal.h"
 
-#define DIM(v) (sizeof(v)/sizeof((v)[0]))
 #define MAX_EXTERN_MPI_BITS 16384
 
-static uint8_t asn[15] =       /* Object ID is 1.3.14.3.2.26 */
-{ 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03,
-       0x02, 0x1a, 0x05, 0x00, 0x04, 0x14
-};
-
-MPI do_encode_md(const void *sha_buffer, unsigned nbits)
-{
-       int nframe = (nbits + 7) / 8;
-       uint8_t *frame, *fr_pt;
-       int i = 0, n;
-       size_t asnlen = DIM(asn);
-       MPI a = MPI_NULL;
-
-       if (SHA1_DIGEST_LENGTH + asnlen + 4 > nframe)
-               pr_info("MPI: can't encode a %d bit MD into a %d bits frame\n",
-                      (int)(SHA1_DIGEST_LENGTH * 8), (int)nbits);
-
-       /* We encode the MD in this way:
-        *
-        *       0  A PAD(n bytes)   0  ASN(asnlen bytes)  MD(len bytes)
-        *
-        * PAD consists of FF bytes.
-        */
-       frame = kmalloc(nframe, GFP_KERNEL);
-       if (!frame)
-               return MPI_NULL;
-       n = 0;
-       frame[n++] = 0;
-       frame[n++] = 1;         /* block type */
-       i = nframe - SHA1_DIGEST_LENGTH - asnlen - 3;
-
-       if (i <= 1) {
-               pr_info("MPI: message digest encoding failed\n");
-               kfree(frame);
-               return a;
-       }
-
-       memset(frame + n, 0xff, i);
-       n += i;
-       frame[n++] = 0;
-       memcpy(frame + n, &asn, asnlen);
-       n += asnlen;
-       memcpy(frame + n, sha_buffer, SHA1_DIGEST_LENGTH);
-       n += SHA1_DIGEST_LENGTH;
-
-       i = nframe;
-       fr_pt = frame;
-
-       if (n != nframe) {
-               printk
-                   ("MPI: message digest encoding failed, frame length is wrong\n");
-               kfree(frame);
-               return a;
-       }
-
-       a = mpi_alloc((nframe + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB);
-       mpi_set_buffer(a, frame, nframe, 0);
-       kfree(frame);
-
-       return a;
-}
-
 MPI mpi_read_from_buffer(const void *xbuffer, unsigned *ret_nread)
 {
        const uint8_t *buffer = xbuffer;
        int i, j;
        unsigned nbits, nbytes, nlimbs, nread = 0;
        mpi_limb_t a;
-       MPI val = MPI_NULL;
+       MPI val = NULL;
 
        if (*ret_nread < 2)
                goto leave;
@@ -108,7 +45,7 @@ MPI mpi_read_from_buffer(const void *xbuffer, unsigned *ret_nread)
        nlimbs = (nbytes + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB;
        val = mpi_alloc(nlimbs);
        if (!val)
-               return MPI_NULL;
+               return NULL;
        i = BYTES_PER_MPI_LIMB - nbytes % BYTES_PER_MPI_LIMB;
        i %= BYTES_PER_MPI_LIMB;
        val->nbits = nbits;
@@ -212,30 +149,6 @@ int mpi_fromstr(MPI val, const char *str)
 EXPORT_SYMBOL_GPL(mpi_fromstr);
 
 /****************
- * Special function to get the low 8 bytes from an mpi.
- * This can be used as a keyid; KEYID is an 2 element array.
- * Return the low 4 bytes.
- */
-u32 mpi_get_keyid(const MPI a, u32 *keyid)
-{
-#if BYTES_PER_MPI_LIMB == 4
-       if (keyid) {
-               keyid[0] = a->nlimbs >= 2 ? a->d[1] : 0;
-               keyid[1] = a->nlimbs >= 1 ? a->d[0] : 0;
-       }
-       return a->nlimbs >= 1 ? a->d[0] : 0;
-#elif BYTES_PER_MPI_LIMB == 8
-       if (keyid) {
-               keyid[0] = a->nlimbs ? (u32) (a->d[0] >> 32) : 0;
-               keyid[1] = a->nlimbs ? (u32) (a->d[0] & 0xffffffff) : 0;
-       }
-       return a->nlimbs ? (u32) (a->d[0] & 0xffffffff) : 0;
-#else
-#error Make this function work with other LIMB sizes
-#endif
-}
-
-/****************
  * Return an allocated buffer with the MPI (msb first).
  * NBYTES receives the length of this buffer. Caller must free the
  * return string (This function does return a 0 byte buffer with NBYTES
index 87ede16..cde1aae 100644 (file)
@@ -217,6 +217,10 @@ mpihelp_divrem(mpi_ptr_t qp, mpi_size_t qextra_limbs,
        case 0:
                /* We are asked to divide by zero, so go ahead and do it!  (To make
                   the compiler not remove this statement, return the value.)  */
+               /*
+                * existing clients of this function have been modified
+                * not to call it with dsize == 0, so this should not happen
+                */
                return 1 / dsize;
 
        case 1:
index eefc55d..26e4ed3 100644 (file)
@@ -58,6 +58,9 @@ mpi_ptr_t mpi_alloc_limb_space(unsigned nlimbs)
 {
        size_t len = nlimbs * sizeof(mpi_limb_t);
 
+       if (!len)
+               return NULL;
+
        return kmalloc(len, GFP_KERNEL);
 }
 
@@ -135,7 +138,7 @@ int mpi_copy(MPI *copied, const MPI a)
        size_t i;
        MPI b;
 
-       *copied = MPI_NULL;
+       *copied = NULL;
 
        if (a) {
                b = mpi_alloc(a->nlimbs);
index 4b0fdc2..0d83ea8 100644 (file)
@@ -34,7 +34,7 @@ void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
        if (maxlen && len > maxlen)
                len = maxlen;
        if (flags & IORESOURCE_IO)
-               return ioport_map(start, len);
+               return __pci_ioport_map(dev, start, len);
        if (flags & IORESOURCE_MEM) {
                if (flags & IORESOURCE_CACHEABLE)
                        return ioremap(start, len);
index 71a58f6..bd939a5 100644 (file)
@@ -313,6 +313,19 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone,
                } else if (!locked)
                        spin_lock_irq(&zone->lru_lock);
 
+               /*
+                * migrate_pfn does not necessarily start aligned to a
+                * pageblock. Ensure that pfn_valid is called when moving
+                * into a new MAX_ORDER_NR_PAGES range in case of large
+                * memory holes within the zone
+                */
+               if ((low_pfn & (MAX_ORDER_NR_PAGES - 1)) == 0) {
+                       if (!pfn_valid(low_pfn)) {
+                               low_pfn += MAX_ORDER_NR_PAGES - 1;
+                               continue;
+                       }
+               }
+
                if (!pfn_valid_within(low_pfn))
                        continue;
                nr_scanned++;
index 97f49ed..b662757 100644 (file)
@@ -1400,15 +1400,12 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
        unsigned long seg = 0;
        size_t count;
        loff_t *ppos = &iocb->ki_pos;
-       struct blk_plug plug;
 
        count = 0;
        retval = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE);
        if (retval)
                return retval;
 
-       blk_start_plug(&plug);
-
        /* coalesce the iovecs and go direct-to-BIO for O_DIRECT */
        if (filp->f_flags & O_DIRECT) {
                loff_t size;
@@ -1424,8 +1421,12 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
                        retval = filemap_write_and_wait_range(mapping, pos,
                                        pos + iov_length(iov, nr_segs) - 1);
                        if (!retval) {
+                               struct blk_plug plug;
+
+                               blk_start_plug(&plug);
                                retval = mapping->a_ops->direct_IO(READ, iocb,
                                                        iov, pos, nr_segs);
+                               blk_finish_plug(&plug);
                        }
                        if (retval > 0) {
                                *ppos = pos + retval;
@@ -1481,7 +1482,6 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
                        break;
        }
 out:
-       blk_finish_plug(&plug);
        return retval;
 }
 EXPORT_SYMBOL(generic_file_aio_read);
index f91b2f6..a4eb311 100644 (file)
@@ -263,7 +263,12 @@ found:
                                                        xip_pfn);
                if (err == -ENOMEM)
                        return VM_FAULT_OOM;
-               BUG_ON(err);
+               /*
+                * err == -EBUSY is fine, we've raced against another thread
+                * that faulted-in the same page
+                */
+               if (err != -EBUSY)
+                       BUG_ON(err);
                return VM_FAULT_NOPAGE;
        } else {
                int err, ret = VM_FAULT_OOM;
index c833add..45eb621 100644 (file)
@@ -1036,7 +1036,7 @@ void __ref kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp)
 {
        pr_debug("%s(0x%p)\n", __func__, ptr);
 
-       if (atomic_read(&kmemleak_enabled) && ptr && !IS_ERR(ptr))
+       if (atomic_read(&kmemleak_enabled) && ptr && size && !IS_ERR(ptr))
                add_scan_area((unsigned long)ptr, size, gfp);
        else if (atomic_read(&kmemleak_early_log))
                log_early(KMEMLEAK_SCAN_AREA, ptr, size, 0);
@@ -1757,6 +1757,7 @@ void __init kmemleak_init(void)
 
 #ifdef CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF
        if (!kmemleak_skip_disable) {
+               atomic_set(&kmemleak_early_log, 0);
                kmemleak_disable();
                return;
        }
index 556859f..6728a7a 100644 (file)
@@ -776,7 +776,8 @@ static void memcg_check_events(struct mem_cgroup *memcg, struct page *page)
        /* threshold event is triggered in finer grain than soft limit */
        if (unlikely(mem_cgroup_event_ratelimit(memcg,
                                                MEM_CGROUP_TARGET_THRESH))) {
-               bool do_softlimit, do_numainfo;
+               bool do_softlimit;
+               bool do_numainfo __maybe_unused;
 
                do_softlimit = mem_cgroup_event_ratelimit(memcg,
                                                MEM_CGROUP_TARGET_SOFTLIMIT);
index 9871a56..df141f6 100644 (file)
@@ -445,7 +445,6 @@ void migrate_page_copy(struct page *newpage, struct page *page)
        ClearPageSwapCache(page);
        ClearPagePrivate(page);
        set_page_private(page, 0);
-       page->mapping = NULL;
 
        /*
         * If any waiters have accumulated on the new page then
@@ -667,6 +666,7 @@ static int move_to_new_page(struct page *newpage, struct page *page,
        } else {
                if (remap_swapcache)
                        remove_migration_ptes(page, newpage);
+               page->mapping = NULL;
        }
 
        unlock_page(newpage);
index e920aa3..c20ff48 100644 (file)
@@ -298,23 +298,18 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
                goto free_proc_pages;
        }
 
-       task_lock(task);
-       if (__ptrace_may_access(task, PTRACE_MODE_ATTACH)) {
-               task_unlock(task);
-               rc = -EPERM;
-               goto put_task_struct;
-       }
-       mm = task->mm;
-
-       if (!mm || (task->flags & PF_KTHREAD)) {
-               task_unlock(task);
-               rc = -EINVAL;
+       mm = mm_access(task, PTRACE_MODE_ATTACH);
+       if (!mm || IS_ERR(mm)) {
+               rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
+               /*
+                * Explicitly map EACCES to EPERM as EPERM is a more a
+                * appropriate error code for process_vw_readv/writev
+                */
+               if (rc == -EACCES)
+                       rc = -EPERM;
                goto put_task_struct;
        }
 
-       atomic_inc(&mm->mm_users);
-       task_unlock(task);
-
        for (i = 0; i < riovcnt && iov_l_curr_idx < liovcnt; i++) {
                rc = process_vm_rw_single_vec(
                        (unsigned long)rvec[i].iov_base, rvec[i].iov_len,
index 97f70e5..761ad9d 100644 (file)
@@ -85,8 +85,6 @@ int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid)
        } else {
                pr_info("client%lld fsid %pU\n", ceph_client_id(client), fsid);
                memcpy(&client->fsid, fsid, sizeof(*fsid));
-               ceph_debugfs_client_init(client);
-               client->have_fsid = true;
        }
        return 0;
 }
index 0b62dea..1845cde 100644 (file)
@@ -8,8 +8,8 @@
 
 #include <linux/ceph/mon_client.h>
 #include <linux/ceph/libceph.h>
+#include <linux/ceph/debugfs.h>
 #include <linux/ceph/decode.h>
-
 #include <linux/ceph/auth.h>
 
 /*
@@ -340,8 +340,19 @@ static void ceph_monc_handle_map(struct ceph_mon_client *monc,
        client->monc.monmap = monmap;
        kfree(old);
 
+       if (!client->have_fsid) {
+               client->have_fsid = true;
+               mutex_unlock(&monc->mutex);
+               /*
+                * do debugfs initialization without mutex to avoid
+                * creating a locking dependency
+                */
+               ceph_debugfs_client_init(client);
+               goto out_unlocked;
+       }
 out:
        mutex_unlock(&monc->mutex);
+out_unlocked:
        wake_up_all(&client->auth_wq);
 }
 
index 4df72c0..c2c65f6 100644 (file)
@@ -1447,7 +1447,7 @@ void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
                for (i = 0; i < c->cvt_setups.used; i++) {
                        p = snd_array_elem(&c->cvt_setups, i);
                        if (!p->active && p->stream_tag == stream_tag &&
-                           get_wcaps_type(get_wcaps(codec, p->nid)) == type)
+                           get_wcaps_type(get_wcaps(c, p->nid)) == type)
                                p->dirty = 1;
                }
        }
index d8a35da..9d819c4 100644 (file)
@@ -282,7 +282,8 @@ int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
 EXPORT_SYMBOL_HDA(snd_hda_jack_add_kctl);
 
 static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
-                        const struct auto_pin_cfg *cfg)
+                        const struct auto_pin_cfg *cfg,
+                        char *lastname, int *lastidx)
 {
        unsigned int def_conf, conn;
        char name[44];
@@ -298,6 +299,10 @@ static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
                return 0;
 
        snd_hda_get_pin_label(codec, nid, cfg, name, sizeof(name), &idx);
+       if (!strcmp(name, lastname) && idx == *lastidx)
+               idx++;
+       strncpy(lastname, name, 44);
+       *lastidx = idx;
        err = snd_hda_jack_add_kctl(codec, nid, name, idx);
        if (err < 0)
                return err;
@@ -311,41 +316,42 @@ int snd_hda_jack_add_kctls(struct hda_codec *codec,
                           const struct auto_pin_cfg *cfg)
 {
        const hda_nid_t *p;
-       int i, err;
+       int i, err, lastidx = 0;
+       char lastname[44] = "";
 
        for (i = 0, p = cfg->line_out_pins; i < cfg->line_outs; i++, p++) {
-               err = add_jack_kctl(codec, *p, cfg);
+               err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
                if (err < 0)
                        return err;
        }
        for (i = 0, p = cfg->hp_pins; i < cfg->hp_outs; i++, p++) {
                if (*p == *cfg->line_out_pins) /* might be duplicated */
                        break;
-               err = add_jack_kctl(codec, *p, cfg);
+               err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
                if (err < 0)
                        return err;
        }
        for (i = 0, p = cfg->speaker_pins; i < cfg->speaker_outs; i++, p++) {
                if (*p == *cfg->line_out_pins) /* might be duplicated */
                        break;
-               err = add_jack_kctl(codec, *p, cfg);
+               err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
                if (err < 0)
                        return err;
        }
        for (i = 0; i < cfg->num_inputs; i++) {
-               err = add_jack_kctl(codec, cfg->inputs[i].pin, cfg);
+               err = add_jack_kctl(codec, cfg->inputs[i].pin, cfg, lastname, &lastidx);
                if (err < 0)
                        return err;
        }
        for (i = 0, p = cfg->dig_out_pins; i < cfg->dig_outs; i++, p++) {
-               err = add_jack_kctl(codec, *p, cfg);
+               err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
                if (err < 0)
                        return err;
        }
-       err = add_jack_kctl(codec, cfg->dig_in_pin, cfg);
+       err = add_jack_kctl(codec, cfg->dig_in_pin, cfg, lastname, &lastidx);
        if (err < 0)
                return err;
-       err = add_jack_kctl(codec, cfg->mono_out_pin, cfg);
+       err = add_jack_kctl(codec, cfg->mono_out_pin, cfg, lastname, &lastidx);
        if (err < 0)
                return err;
        return 0;
index 0e99357..bc5a993 100644 (file)
@@ -988,8 +988,10 @@ static void cs_automic(struct hda_codec *codec)
                        change_cur_input(codec, !spec->automic_idx, 0);
        } else {
                if (present) {
-                       spec->last_input = spec->cur_input;
-                       spec->cur_input = spec->automic_idx;
+                       if (spec->cur_input != spec->automic_idx) {
+                               spec->last_input = spec->cur_input;
+                               spec->cur_input = spec->automic_idx;
+                       }
                } else  {
                        spec->cur_input = spec->last_input;
                }