10 years agox86: fix buffer overflow in efi_init()
Roel Kluin [Thu, 6 Aug 2009 22:58:13 +0000]
x86: fix buffer overflow in efi_init()

If the vendor name (from c16) can be longer than 100 bytes (or missing a
terminating null), then the null is written past the end of vendor[].

Found with Parfait, http://research.sun.com/projects/parfait/

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Huang Ying <ying.huang@intel.com>

10 years agox86: Add quirk to make Apple MacBookPro5,1 use reboot=pci
Ozan Çağlayan [Tue, 4 Aug 2009 16:39:31 +0000]
x86: Add quirk to make Apple MacBookPro5,1 use reboot=pci

MacBookPro5,1 is not able to reboot unless reboot=pci is set.
This patch forces it through a DMI quirk specific to this
device.

Signed-off-by: Ozan Çağlayan <ozan@pardus.org.tr>
LKML-Reference: <1249403971-6543-1-git-send-email-ozan@pardus.org.tr>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86: Fix MSI-X initialization by using online_mask for x2apic target_cpus
Yinghai Lu [Tue, 4 Aug 2009 15:59:59 +0000]
x86: Fix MSI-X initialization by using online_mask for x2apic target_cpus

found a system where x2apic reports an MSI-X irq initialization
failure:

[  302.859446] igbvf 0000:81:10.4: enabling device (0000 -> 0002)
[  302.874369] igbvf 0000:81:10.4: using 64bit DMA mask
[  302.879023] igbvf 0000:81:10.4: using 64bit consistent DMA mask
[  302.894386] igbvf 0000:81:10.4: enabling bus mastering
[  302.898171] igbvf 0000:81:10.4: setting latency timer to 64
[  302.914050] reserve_memtype added 0xefb08000-0xefb0c000, track uncached-minus, req uncached-minus, ret uncached-minus
[  302.933839] reserve_memtype added 0xefb28000-0xefb29000, track uncached-minus, req uncached-minus, ret uncached-minus
[  302.940367]   alloc irq_desc for 265 on node 4
[  302.956874]   alloc kstat_irqs on node 4
[  302.959452] alloc irq_2_iommu on node 0
[  302.974328] igbvf 0000:81:10.4: irq 265 for MSI/MSI-X
[  302.977778]   alloc irq_desc for 266 on node 4
[  302.980347]   alloc kstat_irqs on node 4
[  302.995312] free_memtype request 0xefb28000-0xefb29000
[  302.998816] igbvf 0000:81:10.4: Failed to initialize MSI-X interrupts.

... it turns out that when trying to enable MSI-X,
__assign_irq_vector(new, cfg_new, apic->target_cpus()) can not
get vector because for x2apic target-cpus returns cpumask_of(0)

Update that to online_mask like xapic.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <4A785AFF.3050902@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86: Fix VMI && stack protector
Alok Kataria [Tue, 4 Aug 2009 22:34:22 +0000]
x86: Fix VMI && stack protector

With CONFIG_STACK_PROTECTOR turned on, VMI doesn't boot with
more than one processor. The problem is with the gs value not
being initialized correctly when registering the secondary
processor for VMI's case.

The patch below initializes the gs value for the AP to
__KERNEL_STACK_CANARY. Without this the secondary processor
keeps on taking a GP on every gs access.

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Cc: <stable@kernel.org> # for v2.6.30.x
LKML-Reference: <1249425262.18955.40.camel@ank32.eng.vmware.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Tue, 4 Aug 2009 22:49:11 +0000]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (32 commits)
  MIPS: Wire up accept4 syscall.
  MIPS: VPE: Delete unused function get_tc_unused().
  MIPS: VPE: Fix bogus indentation.
  MIPS: VPE: Make various functions static.
  MIPS: VPE: Free relocation chain on error.
  MIPS: VPE: Fix compiler warning.
  MIPS: Module: Make error messages unique.
  MIPS: Octeon: Run IPI code with interrupts disabled.
  MIPS: Jazz: Fix read buffer overflow
  MIPS: Use DIV_ROUND_CLOSEST
  MIPS: MTX-1: Request button GPIO before setting its direction
  MIPS: AR7: Override CFLAGS with -Werror
  MIPS: AR7: Remove unused tnetd7200_get_clock function
  MIPS: AR7: Use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK
  MIPS: AR7: Fix build failures when CONFIG_SERIAL_8250 is not enabled
  MIPS: Fix read buffer overflow
  MIPS: AR7: Fix build warning on memory.c
  MIPS: Octeon PCIe: Make hardware and software bus numbers match.
  MIPS: RBTX4939: Fix IOC pin-enable register updating
  MIPS: Simplify and correct interrupt handling for MSP4200
  ...

10 years agoMerge branch 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Tue, 4 Aug 2009 22:39:55 +0000]
Merge branch 'fix/hda' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Read buffer overflow
  ALSA: hda: Correct EAPD for Dell Inspiron 1525
  ALSA: hda: warn on spurious response
  ALSA: hda: remember last command for each codec
  ALSA: hda: read CORBWP inside reg_lock
  ALSA: hda: take reg_lock in azx_init_cmd_io/azx_free_cmd_io
  ALSA: hda: take cmd_mutex in probe_codec()
  ALSA: hda: track CIRB/CORB command/response states for each codec
  ALSA: hda - Fix quirk for Toshiba Satellite A135-S4527

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
Linus Torvalds [Tue, 4 Aug 2009 22:39:43 +0000]
Merge git://git./linux/kernel/git/gregkh/tty-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  tty-ldisc: be more careful in 'put_ldisc' locking
  tty-ldisc: turn ldisc user count into a proper refcount
  tty-ldisc: make refcount be atomic_t 'users' count

10 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Tue, 4 Aug 2009 22:39:16 +0000]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG
  block: Update topology documentation
  block: Stack optimal I/O size
  block: Add a wrapper for setting minimum request size without a queue
  block: Make blk_queue_stack_limits use the new stacking interface

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Tue, 4 Aug 2009 22:38:34 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits)
  ehea: Fix napi list corruption on ifconfig down
  igbvf: Allow VF driver to correctly recognize failure to set mac
  3c59x: Fix build failure with gcc 3.2
  sky2: Avoid transmits during sky2_down()
  iwlagn: do not send key clear commands when rfkill enabled
  libertas: Read buffer overflow
  drivers/net/wireless: introduce missing kfree
  drivers/net/wireless/iwlwifi: introduce missing kfree
  zd1211rw: fix unaligned access in zd_mac_rx
  cfg80211: fix regression on beacon world roaming feature
  cfg80211: add two missing NULL pointer checks
  ixgbe: Patch to modify 82598 PCIe completion timeout values
  bluetooth: rfcomm_init bug fix
  mlx4_en: Fix double pci unmapping.
  mISDN: Fix handling of receive buffer size in L1oIP
  pcnet32: VLB support fixes
  pcnet32: remove superfluous NULL pointer check in pcnet32_probe1()
  net: restore the original spinlock to protect unicast list
  netxen: fix coherent dma mask setting
  mISDN: Read buffer overflow
  ...

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
Linus Torvalds [Tue, 4 Aug 2009 22:38:10 +0000]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (23 commits)
  [SCSI] sd: Avoid sending extended inquiry to legacy devices
  [SCSI] libsas: fix wide port hotplug issues
  [SCSI] libfc: fix a circular locking warning during sending RRQ
  [SCSI] qla4xxx: Remove hiwat code so scsi eh does not get escalated when we can make progress
  [SCSI] qla4xxx: Fix srb lookup in qla4xxx_eh_device_reset
  [SCSI] qla4xxx: Fix Driver Fault Recovery Completion
  [SCSI] qla4xxx: add timeout handler
  [SCSI] qla4xxx: Correct Extended Sense Data Errors
  [SCSI] libiscsi: disable bh in and abort handler.
  [SCSI] zfcp: Fix tracing of request id for abort requests
  [SCSI] zfcp: Fix wka port processing
  [SCSI] zfcp: avoid double notify in lowmem scenario
  [SCSI] zfcp: Add port only once to FC transport class
  [SCSI] zfcp: Recover from stalled outbound queue
  [SCSI] zfcp: Fix erp escalation procedure
  [SCSI] zfcp: Fix logic for physical port close
  [SCSI] zfcp: Use -EIO for SBAL allocation failures
  [SCSI] zfcp: Use unchained mode for small ct and els requests
  [SCSI] zfcp: Use correct flags for zfcp_erp_notify
  [SCSI] zfcp: Return -ENOMEM for allocation failures in zfcp_fsf
  ...

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Linus Torvalds [Tue, 4 Aug 2009 22:35:47 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  amd64_edac: print debug statements only on error
  amd64_edac: fix ECC checking

10 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Tue, 4 Aug 2009 22:34:30 +0000]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/ttm: Read buffer overflow
  drm/radeon: Read buffer overflow
  drm/ttm: Fix a sync object leak.
  drm/radeon/kms: fix memory leak in radeon_driver_load_kms
  drm/radeon/kms: fix nomodeset.
  drm/ttm: Fix a potential comparison of structs.
  drm/radeon/kms: fix rv515 VRAM initialisation.
  drm/radeon: add some new r7xx pci ids
  drm: Catch stop possible NULL pointer reference
  drm: Small logic fix in drm_mode_setcrtc

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Tue, 4 Aug 2009 22:34:09 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/deller/parisc-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-2.6:
  parisc: hppb.c - fix printk format strings
  parisc: parisc-agp.c - use correct page_mask function
  parisc: sticore.c - check return values
  parisc: dino.c - check return value of pci_assign_resource()
  parisc: hp_sdc_mlc.c - check return value of down_trylock()
  parisc: includecheck fix for ccio-dma.c
  parisc: Set correct bit in protection flags
  parisc: isa-eeprom - Fix loff_t usage
  parisc: fixed faulty check in lba_pci
  parisc: Fix read buffer overflow in pdc_stable driver
  parisc: Fix GOT overflow during module load on 64bit kernel

10 years agoflex_array: remove unneeded index calculation
Jonathan Corbet [Tue, 4 Aug 2009 19:35:17 +0000]
flex_array: remove unneeded index calculation

flex_array_get() calculates an index value, then drops it on the floor;
simply remove it.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Tue, 4 Aug 2009 22:32:40 +0000]
Merge branch 'perfcounters-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf_counter: Set the CONFIG_PERF_COUNTERS default to y if CONFIG_PROFILING=y
  perf: Fix read buffer overflow
  perf top: Add mwait_idle_with_hints to skip_symbols[]
  perf tools: Fix faulty check
  perf report: Update for the new FORK/EXIT events
  perf_counter: Full task tracing
  perf_counter: Collapse inherit on read()
  tracing, perf_counter: Add help text to CONFIG_EVENT_PROFILE
  perf_counter tools: Fix link errors with older toolchains

10 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 4 Aug 2009 22:32:22 +0000]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Fix race in cpupri introduced by cpumask_var changes
  sched: Fix latencytop and sleep profiling vs group scheduling

10 years agoMerge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 4 Aug 2009 22:32:08 +0000]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  posix-timers: Fix oops in clock_nanosleep() with CLOCK_MONOTONIC_RAW

10 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 4 Aug 2009 22:31:51 +0000]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing: Fix missing function_graph events when we splice_read from trace_pipe
  tracing: Fix invalid function_graph entry
  trace: stop tracer in oops_enter()
  ftrace: Only update $offset when we update $ref_func
  ftrace: Fix the conditional that updates $ref_func
  tracing: only truncate ftrace files when O_TRUNC is set
  tracing: show proper address for trace-printk format

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Linus Torvalds [Tue, 4 Aug 2009 22:29:25 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/sameo/mfd-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
  mfd: twl4030 irq fixes

10 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 4 Aug 2009 22:28:59 +0000]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Work around compilation warning in arch/x86/kernel/apm_32.c
  x86, UV: Complete IRQ interrupt migration in arch_enable_uv_irq()
  x86, 32-bit: Fix double accounting in reserve_top_address()
  x86: Don't use current_cpu_data in x2apic phys_pkg_id
  x86, UV: Fix UV apic mode
  x86, UV: Fix macros for accessing large node numbers
  x86, UV: Delete mapping of MMR rangs mapped by BIOS
  x86, UV: Handle missing blade-local memory correctly
  x86: fix assembly constraints in native_save_fl()
  x86, msr: execute on the correct CPU subset
  x86: Fix assert syntax in vmlinux.lds.S
  x86: Make 64-bit efi_ioremap use ioremap on MMIO regions
  x86: Add quirk to make Apple MacBook5,2 use reboot=pci
  x86: Fix CPA memtype reserving in the set_pages_array*() cases
  x86, pat: Fix set_memory_wc related corruption
  x86: fix section mismatch for i386 init code

10 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Tue, 4 Aug 2009 22:28:46 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Make cpufreq suspend code conditional on powerpc.
  [CPUFREQ] Fix a kobject reference bug related to managed CPUs
  [CPUFREQ] Do not set policy for offline cpus
  [CPUFREQ] Fix NULL pointer dereference regression in conservative governor

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke...
Linus Torvalds [Tue, 4 Aug 2009 22:28:23 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: fix missing unlock in error path of nilfs_mdt_write_page
  nilfs2: fix oops due to inconsistent state in page with discrete b-tree nodes

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Tue, 4 Aug 2009 22:27:56 +0000]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] Update readme to reflect forceuid mount parms
  cifs: Read buffer overflow
  cifs: show noforceuid/noforcegid mount options (try #2)
  cifs: reinstate original behavior when uid=/gid= options are specified
  [CIFS] Updates fs/cifs/CHANGES
  cifs: fix error handling in mount-time DFS referral chasing code

10 years agotty-ldisc: be more careful in 'put_ldisc' locking
Linus Torvalds [Mon, 3 Aug 2009 21:54:56 +0000]
tty-ldisc: be more careful in 'put_ldisc' locking

Use 'atomic_dec_and_lock()' to make sure that we always hold the
tty_ldisc_lock when the ldisc count goes to zero. That way we can never
race against 'tty_ldisc_try()' increasing the count again.

Reported-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agotty-ldisc: turn ldisc user count into a proper refcount
Linus Torvalds [Mon, 3 Aug 2009 18:11:19 +0000]
tty-ldisc: turn ldisc user count into a proper refcount

By using the user count for the actual lifetime rules, we can get rid of
the silly "wait_for_idle" logic, because any busy ldisc will
automatically stay around until the last user releases it.  This avoids
a host of odd issues, and simplifies the code.

So now, when the last ldisc reference is dropped, we just release the
ldisc operations struct reference, and free the ldisc.

It looks obvious enough, and it does work for me, but the counting
_could_ be off. It probably isn't (bad counting in the new version would
generally imply that the old code did something really bad, like free an
ldisc with a non-zero count), but it does need some testing, and
preferably somebody looking at it.

With this change, both 'tty_ldisc_put()' and 'tty_ldisc_deref()' are
just aliases for the new ref-counting 'put_ldisc()'. Both of them
decrement the ldisc user count and free it if it goes down to zero.
They're identical functions, in other words.

But the reason they still exist as sepate functions is that one of them
was exported (tty_ldisc_deref) and had a stupid name (so I don't want to
use it as the main name), and the other one was used in multiple places
(and I didn't want to make the patch larger just to rename the users).

In addition to the refcounting, I did do some minimal cleanup. For
example, now "tty_ldisc_try()" actually returns the ldisc it got under
the lock, rather than returning true/false and then the caller would
look up the ldisc again (now without the protection of the lock).

That said, there's tons of dubious use of 'tty->ldisc' without obviously
proper locking or refcounting left. I expressly did _not_ want to try to
fix it all, keeping the patch minimal. There may or may not be bugs in
that kind of code, but they wouldn't be _new_ bugs.

That said, even if the bugs aren't new, the timing and lifetime will
change. For example, some silly code may depend on the 'tty->ldisc'
pointer not changing because they hold a refcount on the 'ldisc'. And
that's no longer true - if you hold a ref on the ldisc, the 'ldisc'
itself is safe, but tty->ldisc may change.

So the proper locking (remains) to hold tty->ldisc_mutex if you expect
tty->ldisc to be stable. That's not really a _new_ rule, but it's an
example of something that the old code might have unintentionally
depended on and hidden bugs.

Whatever. The patch _looks_ sensible to me. The only users of
ldisc->users are:
 - get_ldisc() - atomically increment the count

 - put_ldisc() - atomically decrements the count and releases if zero

 - tty_ldisc_try_get() - creates the ldisc, and sets the count to 1.
   The ldisc should then either be released, or be attached to a tty.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agotty-ldisc: make refcount be atomic_t 'users' count
Linus Torvalds [Mon, 3 Aug 2009 17:58:29 +0000]
tty-ldisc: make refcount be atomic_t 'users' count

This is pure preparation of changing the ldisc reference counting to be
a true refcount that defines the lifetime of the ldisc.  But this is a
purely syntactic change for now to make the next steps easier.

This patch should make no semantic changes at all. But I wanted to make
the ldisc refcount be an atomic (I will be touching it without locks
soon enough), and I wanted to rename it so that there isn't quite as
much confusion between 'ldo->refcount' (ldisk operations refcount) and
'ld->refcount' (ldisc refcount itself) in the same file.

So it's now an atomic 'ld->users' count. It still starts at zero,
despite having a reference from 'tty->ldisc', but that will change once
we turn it into a _real_ refcount.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoMake SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since...
John Stoffel [Tue, 4 Aug 2009 20:10:17 +0000]
Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG

Make Block Layer SG support v4 the default, since recent udev versions
depend on this to access serial numbers and other low level info properly.

This should be backported to older kernels as well, since most distros have
enabled this for a long time.

Signed-off-by: John Stoffel <john@stoffel.org>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

10 years agoehea: Fix napi list corruption on ifconfig down
Hannes Hering [Tue, 4 Aug 2009 18:48:39 +0000]
ehea: Fix napi list corruption on ifconfig down

This patch fixes the napi list handling when an ehea interface is shut
down to avoid corruption of the napi list.

Signed-off-by: Hannes Hering <hering2@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agoigbvf: Allow VF driver to correctly recognize failure to set mac
Alexander Duyck [Tue, 4 Aug 2009 18:46:41 +0000]
igbvf: Allow VF driver to correctly recognize failure to set mac

The VF driver was not correctly recognizing that it did not correctly set
it's mac address.  As a result the VF driver was unable to receive network
traffic until being unloaded and reloaded.  The issue was root caused to
the fact that the CTS bit was not taken into account when checking for the
request being NAKed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years ago[CPUFREQ] Make cpufreq suspend code conditional on powerpc.
Dave Jones [Tue, 4 Aug 2009 18:03:25 +0000]
[CPUFREQ] Make cpufreq suspend code conditional on powerpc.

The suspend code runs with interrupts disabled, and the powerpc workaround we
do in the cpufreq suspend hook calls the drivers ->get method.

powernow-k8's ->get does an smp_call_function_single
which needs interrupts enabled

cpufreq's suspend/resume code was added in 42d4dc3f4e1e to work around
a hardware problem on ppc powerbooks.  If we make all this code
conditional on powerpc, we avoid the issue above.

Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] Fix a kobject reference bug related to managed CPUs
Thomas Renninger [Wed, 29 Jul 2009 09:26:20 +0000]
[CPUFREQ] Fix a kobject reference bug related to managed CPUs

The first offline/online cycle is successful, the second not.
Doing:
echo 0 >cpu1/online
echo 1 >cpu1/online
echo 0 >cpu1/online

The last command will trigger:
Jul 22 14:39:50 linux kernel: [  593.210125] ------------[ cut here ]------------
Jul 22 14:39:50 linux kernel: [  593.210139] WARNING: at lib/kref.c:43 kref_get+0x23/0x2b()
Jul 22 14:39:50 linux kernel: [  593.210144] Hardware name: To Be Filled By O.E.M.
Jul 22 14:39:50 linux kernel: [  593.210148] Modules linked in: powernow_k8
Jul 22 14:39:50 linux kernel: [  593.210158] Pid: 378, comm: kondemand/2 Tainted: G        W  2.6.31-rc2 #38
Jul 22 14:39:50 linux kernel: [  593.210163] Call Trace:
Jul 22 14:39:50 linux kernel: [  593.210171]  [<ffffffff812008e8>] ? kref_get+0x23/0x2b
Jul 22 14:39:50 linux kernel: [  593.210181]  [<ffffffff81041926>] warn_slowpath_common+0x77/0xa4
Jul 22 14:39:50 linux kernel: [  593.210190]  [<ffffffff81041962>] warn_slowpath_null+0xf/0x11
Jul 22 14:39:50 linux kernel: [  593.210198]  [<ffffffff812008e8>] kref_get+0x23/0x2b
Jul 22 14:39:50 linux kernel: [  593.210206]  [<ffffffff811ffa19>] kobject_get+0x1a/0x22
Jul 22 14:39:50 linux kernel: [  593.210214]  [<ffffffff813e815d>] cpufreq_cpu_get+0x8a/0xcb
Jul 22 14:39:50 linux kernel: [  593.210222]  [<ffffffff813e87d1>] __cpufreq_driver_getavg+0x1d/0x67
Jul 22 14:39:50 linux kernel: [  593.210231]  [<ffffffff813ea18f>] do_dbs_timer+0x158/0x27f
Jul 22 14:39:50 linux kernel: [  593.210240]  [<ffffffff810529ea>] worker_thread+0x200/0x313
...

The output continues on every do_dbs_timer ondemand freq checking poll.
This regression was introduced by git commit:
3f4a782b5ce2698b1870b5a7b573cd721d4fce33

The policy is released when the cpufreq device is removed in:
__cpufreq_remove_dev():
/* if this isn't the CPU which is the parent of the kobj, we
 * only need to unlink, put and exit
 */

Not creating the symlink is not sever at all.
As long as:
sysfs_remove_link(&sys_dev->kobj, "cpufreq");
handles it gracefully that the symlink did not exist.
Possibly no error should be returned at all, because ondemand
governor would still provide the same functionality.
Userspace in userspace gov case might be confused if the link
is missing.

Resolves http://bugzilla.kernel.org/show_bug.cgi?id=13903

CC: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] Do not set policy for offline cpus
Prarit Bhargava [Mon, 3 Aug 2009 14:58:11 +0000]
[CPUFREQ] Do not set policy for offline cpus

Suspend/Resume fails on multi socket, multi core systems because the cpufreq
code erroneously sets the per_cpu policy_cpu value when a logical cpu is
offline.

This most notably results in missing sysfs files that are used to set the
cpu frequencies of the various cpus.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] Fix NULL pointer dereference regression in conservative governor
Pallipadi, Venkatesh [Wed, 29 Jul 2009 20:36:10 +0000]
[CPUFREQ] Fix NULL pointer dereference regression in conservative governor

Commit ee88415caf736b89500f16e0a545614541a45005
introduced this regression when it removed enable bit in cpu_dbs_info_s.
That added a possibility of dbs_cpufreq_notifier getting called for a
CPU that is not yet managed by conservative governor. That will happen
as the transition notifier is set as soon as one CPU switches to
conservative governor and other CPUs can get a NULL pointer dereference
without the enable bit check. Add the enable bit back again.

Reported-by: Lermytte Christophe <Christophe.Lermytte@thomson.net>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years agomfd: twl4030 irq fixes
Russell King [Mon, 27 Jul 2009 06:00:48 +0000]
mfd: twl4030 irq fixes

The TWL4030 IRQ handler has a bug which leads to spinlock lock-up. It is
calling the 'unmask' function in a process context. :The mask/unmask/ack
functions are only designed to be called from the IRQ handler code,
or the proper API interfaces found in linux/interrupt.h.

Also there is no need to have IRQ chaining mechanism. The right way to
handle this is to claim the parent interrupt as a standard interrupt
and arrange for handle_twl4030_pih to take care of the rest of the devices.

Mail thread on this issue can be found at:
http://marc.info/?l=linux-arm-kernel&m=124629940123396&w=2

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

10 years agoperf_counter: Set the CONFIG_PERF_COUNTERS default to y if CONFIG_PROFILING=y
Ingo Molnar [Mon, 29 Jun 2009 08:40:20 +0000]
perf_counter: Set the CONFIG_PERF_COUNTERS default to y if CONFIG_PROFILING=y

If user has already enabled profiling support in the kernel
(for oprofile, old-style profiling of ftrace) then offer up
perfcounters with a y default in interactive kconfig sessions.

Still keep it off by default otherwise.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86: Work around compilation warning in arch/x86/kernel/apm_32.c
Subrata Modak [Tue, 21 Jul 2009 02:32:27 +0000]
x86: Work around compilation warning in arch/x86/kernel/apm_32.c

The following fix was initially inspired by David Howells fix
few days back:

  http://lkml.org/lkml/2009/7/9/109

However, Ingo disapproves such fixes as it's dangerous (it can
hide future, relevant warnings) - in something as
performance-uncritical.

So, initialize 'err' to '0' to work around a GCC false positive
warning:

  http://lkml.org/lkml/2009/7/18/89

Signed-off-by: Subrata Modak<subrata@linux.vnet.ibm.com>
Cc: Sachin P Sant <sachinp@linux.vnet.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
LKML-Reference: <20090721023226.31855.67236.sendpatchset@subratamodak.linux.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86, UV: Complete IRQ interrupt migration in arch_enable_uv_irq()
Jack Steiner [Mon, 20 Jul 2009 14:28:41 +0000]
x86, UV: Complete IRQ interrupt migration in arch_enable_uv_irq()

In uv_setup_irq(), the call to create_irq() initially assigns
IRQ vectors to cpu 0. The subsequent call to
assign_irq_vector() in arch_enable_uv_irq() migrates the IRQ to
another cpu and frees the cpu 0 vector - at least it will be
freed as soon as the "IRQ move" completes.

arch_enable_uv_irq() needs to send a cleanup IPI to complete
the IRQ move. Otherwise, assignment of GRU interrupts on large
systems (>200 cpus) will exhaust the cpu 0 interrupt vectors
and initialization of the GRU driver will fail.

Signed-off-by: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20090720142840.GA8885@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86, 32-bit: Fix double accounting in reserve_top_address()
Jan Beulich [Thu, 30 Jul 2009 15:49:30 +0000]
x86, 32-bit: Fix double accounting in reserve_top_address()

With VMALLOC_END included in the calculation of MAXMEM (as of
2.6.28) it is no longer correct to also bump __VMALLOC_RESERVE
in reserve_top_address(). Doing so results in needlessly small
lowmem.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
LKML-Reference: <4A71DD2A020000780000D482@vpn.id2.novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86: Don't use current_cpu_data in x2apic phys_pkg_id
Yinghai Lu [Sat, 25 Jul 2009 10:23:09 +0000]
x86: Don't use current_cpu_data in x2apic phys_pkg_id

One system has socket 1 come up as BSP.

kexeced kernel reports BSP as:

[    1.524550] Initializing cgroup subsys cpuacct
[    1.536064] initial_apicid:20
[    1.537135] ht_mask_width:1
[    1.538128] core_select_mask:f
[    1.539126] core_plus_mask_width:5
[    1.558479] CPU: Physical Processor ID: 0
[    1.559501] CPU: Processor Core ID: 0
[    1.560539] CPU: L1 I cache: 32K, L1 D cache: 32K
[    1.579098] CPU: L2 cache: 256K
[    1.580085] CPU: L3 cache: 24576K
[    1.581108] CPU 0/0x20 -> Node 0
[    1.596193] CPU 0 microcode level: 0xffff0008

It doesn't have correct physical processor id and will get an
error:

[   38.840859] CPU0 attaching sched-domain:
[   38.848287]  domain 0: span 0,8,72 level SIBLING
[   38.851151]   groups: 0 8 72
[   38.858137]   domain 1: span 0,8-15,72-79 level MC
[   38.868944]    groups: 0,8,72 9,73 10,74 11,75 12,76 13,77 14,78 15,79
[   38.881383] ERROR: parent span is not a superset of domain->span
[   38.890724]    domain 2: span 0-7,64-71 level CPU
[   38.899237] ERROR: domain->groups does not contain CPU0
[   38.909229]     groups: 8-15,72-79
[   38.912547] ERROR: groups don't span domain->span
[   38.919665]     domain 3: span 0-127 level NODE
[   38.930739]      groups: 0-7,64-71 8-15,72-79 16-23,80-87 24-31,88-95 32-39,96-103 40-47,104-111 48-55,112-119 56-63,120-127

it turns out: we can not use current_cpu_data in phys_pgd_id
for x2apic.

identify_boot_cpu() is called by check_bugs() before
smp_prepare_cpus() and till smp_prepare_cpus() current_cpu_data
for bsp is assigned with boot_cpu_data.

Just make phys_pkg_id for x2apic is aligned to xapic.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <4A6ADD0D.10002@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86, UV: Fix UV apic mode
Jack Steiner [Mon, 27 Jul 2009 14:38:56 +0000]
x86, UV: Fix UV apic mode

Change SGI UV default apicid mode to "physical". This is
required to match settings in the UV hub chip.

Signed-off-by: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20090727143856.GA8905@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86, UV: Fix macros for accessing large node numbers
Jack Steiner [Mon, 27 Jul 2009 14:38:08 +0000]
x86, UV: Fix macros for accessing large node numbers

The UV chipset automatically supplies the upper bits on nodes
being referenced by MMR accesses. These bit can be deleted from
the hub addressing macros.

Signed-off-by: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20090727143808.GA8076@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86, UV: Delete mapping of MMR rangs mapped by BIOS
Jack Steiner [Mon, 27 Jul 2009 14:36:56 +0000]
x86, UV: Delete mapping of MMR rangs mapped by BIOS

The UV BIOS has added additional MMR ranges that are mapped via
EFI virtual mode mappings. These ranges should be deleted from
ranges mapped by uv_system_init().

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
LKML-Reference: <20090727143656.GA7698@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agox86, UV: Handle missing blade-local memory correctly
Jack Steiner [Mon, 27 Jul 2009 14:35:07 +0000]
x86, UV: Handle missing blade-local memory correctly

UV blades may not have any blade-local memory. Add a field
(nid) to the UV blade structure to indicates whether the node
has local memory. This is needed by the GRU driver (pushed
separately).

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
LKML-Reference: <20090727143507.GA7006@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agoMerge branch 'tracing/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/frederi...
Ingo Molnar [Tue, 4 Aug 2009 11:58:28 +0000]
Merge branch 'tracing/fixes' of git://git./linux/kernel/git/frederic/random-tracing into tracing/urgent

10 years agoamd64_edac: print debug statements only on error
Doug Thompson [Tue, 4 Aug 2009 10:02:20 +0000]
amd64_edac: print debug statements only on error

Add forgotten return calls for the successful cases.

Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>

10 years agoperf: Fix read buffer overflow
Roel Kluin [Sun, 2 Aug 2009 11:43:11 +0000]
perf: Fix read buffer overflow

Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: a.p.zijlstra@chello.nl
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <4A757BCF.40101@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agoposix-timers: Fix oops in clock_nanosleep() with CLOCK_MONOTONIC_RAW
Hiroshi Shimamoto [Mon, 3 Aug 2009 02:48:19 +0000]
posix-timers: Fix oops in clock_nanosleep() with CLOCK_MONOTONIC_RAW

Prevent calling do_nanosleep() with clockid
CLOCK_MONOTONIC_RAW, it may cause oops, such as NULL pointer
dereference.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: <stable@kernel.org>
LKML-Reference: <4A764FF3.50607@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years ago3c59x: Fix build failure with gcc 3.2
Jean Delvare [Tue, 4 Aug 2009 04:10:01 +0000]
3c59x: Fix build failure with gcc 3.2

Fix the following build failure with gcc 3.2:

CC [M] drivers/net/3c59x.o
drivers/net/3c59x.c:2726:1: directives may not be used inside a macro argument
drivers/net/3c59x.c:2725:59: unterminated argument list invoking macro "pr_err"
drivers/net/3c59x.c: In function `dump_tx_ring':
drivers/net/3c59x.c:2727: implicit declaration of function `pr_err'
drivers/net/3c59x.c:2731: syntax error before ')' token

Apparently gcc 3.2 doesn't like #if interleaved with a macro call.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years ago[CIFS] Update readme to reflect forceuid mount parms
Steve French [Tue, 4 Aug 2009 03:53:28 +0000]
[CIFS] Update readme to reflect forceuid mount parms

Signed-off-by: Steve French <sfrench@us.ibm.com>

10 years agodrm/ttm: Read buffer overflow
Roel Kluin [Mon, 3 Aug 2009 12:22:53 +0000]
drm/ttm: Read buffer overflow

Check whether index is within bounds before grabbing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon: Read buffer overflow
Roel Kluin [Mon, 3 Aug 2009 12:20:32 +0000]
drm/radeon: Read buffer overflow

Check whether index is within bounds before grabbing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/ttm: Fix a sync object leak.
Thomas Hellstrom [Mon, 3 Aug 2009 10:39:06 +0000]
drm/ttm: Fix a sync object leak.

If there are multiple simultaneous waiters for the same buffer object,
a temporary reference to its sync object may be leaked.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms: fix memory leak in radeon_driver_load_kms
Xiaotian Feng [Wed, 29 Jul 2009 13:28:24 +0000]
drm/radeon/kms: fix memory leak in radeon_driver_load_kms

This patch fixes following kmemleak report:
unreferenced object 0xffff88022cb53000 (size 4096):
  comm "work_for_cpu", pid 97, jiffies 4294672345
  backtrace:
    [<ffffffff810eb222>] create_object+0x19f/0x2a0
    [<ffffffff810eb422>] kmemleak_alloc+0x26/0x4c
    [<ffffffff810e363f>] __kmalloc+0x187/0x1b0
    [<ffffffffa005f3db>] kzalloc.clone.0+0x13/0x15 [radeon]
    [<ffffffffa005f403>] radeon_driver_load_kms+0x26/0xe1 [radeon]
    [<ffffffffa0017432>] drm_get_dev+0x37f/0x480 [drm]
    [<ffffffffa007f424>] radeon_pci_probe+0x15/0x269 [radeon]
    [<ffffffff811f8779>] local_pci_probe+0x17/0x1b
    [<ffffffff8105ffbb>] do_work_for_cpu+0x18/0x2a
    [<ffffffff81063c38>] kthread+0x8a/0x92
    [<ffffffff81012cba>] child_rip+0xa/0x20
    [<ffffffffffffffff>] 0xffffffffffffffff

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms: fix nomodeset.
Dave Airlie [Mon, 3 Aug 2009 02:05:34 +0000]
drm/radeon/kms: fix nomodeset.

The ordering was wrong to get the nomodeset parameter to work.

Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/ttm: Fix a potential comparison of structs.
Thomas Hellstrom [Fri, 31 Jul 2009 08:47:51 +0000]
drm/ttm: Fix a potential comparison of structs.

On some architectures the comparison may cause a compilation failure.

Original partial fix Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon/kms: fix rv515 VRAM initialisation.
Dave Airlie [Mon, 3 Aug 2009 02:03:03 +0000]
drm/radeon/kms: fix rv515 VRAM initialisation.

This got missed in the VRAM init re-workings.

Signed-of-by: Dave Airlie <airlied@redhat.com>

10 years agodrm/radeon: add some new r7xx pci ids
Alex Deucher [Mon, 3 Aug 2009 21:01:53 +0000]
drm/radeon: add some new r7xx pci ids

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm: Catch stop possible NULL pointer reference
Jakob Bornecrantz [Mon, 3 Aug 2009 12:43:59 +0000]
drm: Catch stop possible NULL pointer reference

This was caught by Weiss. Also added some comments to the
fb_changed and mode_changed variables to explain what they do.

Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Tested-by: Thomas White <taw@bitwiz.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agodrm: Small logic fix in drm_mode_setcrtc
Jakob Bornecrantz [Mon, 3 Aug 2009 12:43:58 +0000]
drm: Small logic fix in drm_mode_setcrtc

Match the logic to the comments in the debug message

Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Tue, 4 Aug 2009 02:05:50 +0000]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6

10 years agosky2: Avoid transmits during sky2_down()
Mike McCormack [Fri, 31 Jul 2009 01:57:42 +0000]
sky2: Avoid transmits during sky2_down()

This patch supersedes my previous patch "sky2: Avoid transmitting
during sky2_restart".

I have reworked the patch to avoid crashes during both sky2_restart()
and sky2_set_ringparam().

Without this patch, the sky2 driver can be crashed by doing:

# pktgen eth1 &    (transmit many packets on eth1)
# ethtool -G eth1 tx 510

I am aware you object to storing extra state, but I can't see a way
around this. Without remembering that we're restarting,
netif_wake_queue() is called in the ISR from sky2_tx_complete(), and
netif_tx_lock() is used in sky2_tx_done().  If anybody can see a way
around this, please let me know.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agox86: fix assembly constraints in native_save_fl()
H. Peter Anvin [Mon, 3 Aug 2009 23:33:40 +0000]
x86: fix assembly constraints in native_save_fl()

From Gabe Black in bugzilla 13888:

native_save_fl is implemented as follows:

  11static inline unsigned long native_save_fl(void)
  12{
  13        unsigned long flags;
  14
  15        asm volatile("# __raw_save_flags\n\t"
  16                     "pushf ; pop %0"
  17                     : "=g" (flags)
  18                     : /* no input */
  19                     : "memory");
  20
  21        return flags;
  22}

If gcc chooses to put flags on the stack, for instance because this is
inlined into a larger function with more register pressure, the offset
of the flags variable from the stack pointer will change when the
pushf is performed. gcc doesn't attempt to understand that fact, and
address used for pop will still be the same. It will write to
somewhere near flags on the stack but not actually into it and
overwrite some other value.

I saw this happen in the ide_device_add_all function when running in a
simulator I work on. I'm assuming that some quirk of how the simulated
hardware is set up caused the code path this is on to be executed when
it normally wouldn't.

A simple fix might be to change "=g" to "=r".

Reported-by: Gabe Black <spamforgabe@umich.edu>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Stable Team <stable@kernel.org>

10 years agox86, msr: execute on the correct CPU subset
Borislav Petkov [Thu, 30 Jul 2009 09:10:01 +0000]
x86, msr: execute on the correct CPU subset

Make rdmsr_on_cpus/wrmsr_on_cpus execute on the current CPU only if it
is in the supplied bitmask.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

10 years agox86: Fix assert syntax in vmlinux.lds.S
H. Peter Anvin [Mon, 3 Aug 2009 21:44:54 +0000]
x86: Fix assert syntax in vmlinux.lds.S

Older versions of binutils did not accept the naked "ASSERT" syntax;
it is considered an expression whose value needs to be assigned to
something.

Reported-tested-and-fixed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

10 years agocifs: Read buffer overflow
Roel Kluin [Sun, 2 Aug 2009 11:00:18 +0000]
cifs: Read buffer overflow

Check whether index is within bounds before testing the element.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

10 years agocifs: show noforceuid/noforcegid mount options (try #2)
Jeff Layton [Mon, 3 Aug 2009 16:45:10 +0000]
cifs: show noforceuid/noforcegid mount options (try #2)

Since forceuid is the default, we now need to show when it's disabled.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

10 years agox86: Make 64-bit efi_ioremap use ioremap on MMIO regions
Paul Mackerras [Mon, 3 Aug 2009 12:38:10 +0000]
x86: Make 64-bit efi_ioremap use ioremap on MMIO regions

Booting current 64-bit x86 kernels on the latest Apple MacBook
(MacBook5,2) via EFI gives the following warning:

[    0.182209] ------------[ cut here ]------------
[    0.182222] WARNING: at arch/x86/mm/pageattr.c:581 __cpa_process_fault+0x44/0xa0()
[    0.182227] Hardware name: MacBook5,2
[    0.182231] CPA: called for zero pte. vaddr = ffff8800ffe00000 cpa->vaddr = ffff8800ffe00000
[    0.182236] Modules linked in:
[    0.182242] Pid: 0, comm: swapper Not tainted 2.6.31-rc4 #6
[    0.182246] Call Trace:
[    0.182254]  [<ffffffff8102c754>] ? __cpa_process_fault+0x44/0xa0
[    0.182261]  [<ffffffff81048668>] warn_slowpath_common+0x78/0xd0
[    0.182266]  [<ffffffff81048744>] warn_slowpath_fmt+0x64/0x70
[    0.182272]  [<ffffffff8102c7ec>] ? update_page_count+0x3c/0x50
[    0.182280]  [<ffffffff818d25c5>] ? phys_pmd_init+0x140/0x22e
[    0.182286]  [<ffffffff8102c754>] __cpa_process_fault+0x44/0xa0
[    0.182292]  [<ffffffff8102ce60>] __change_page_attr_set_clr+0x5f0/0xb40
[    0.182301]  [<ffffffff810d1035>] ? vm_unmap_aliases+0x175/0x190
[    0.182307]  [<ffffffff8102d4ae>] change_page_attr_set_clr+0xfe/0x3d0
[    0.182314]  [<ffffffff8102dcca>] _set_memory_uc+0x2a/0x30
[    0.182319]  [<ffffffff8102dd4b>] set_memory_uc+0x7b/0xb0
[    0.182327]  [<ffffffff818afe31>] efi_enter_virtual_mode+0x2ad/0x2c9
[    0.182334]  [<ffffffff818a1c66>] start_kernel+0x2db/0x3f4
[    0.182340]  [<ffffffff818a1289>] x86_64_start_reservations+0x99/0xb9
[    0.182345]  [<ffffffff818a1389>] x86_64_start_kernel+0xe0/0xf2
[    0.182357] ---[ end trace 4eaa2a86a8e2da22 ]---
[    0.182982] init_memory_mapping: 00000000ffffc000-0000000100000000
[    0.182993]  00ffffc000 - 0100000000 page 4k

This happens because the 64-bit version of efi_ioremap calls
init_memory_mapping for all addresses, regardless of whether they are
RAM or MMIO.  The EFI tables on this machine ask for runtime access to
some MMIO regions:

[    0.000000] EFI: mem195: type=11, attr=0x8000000000000000, range=[0x0000000093400000-0x0000000093401000) (0MB)
[    0.000000] EFI: mem196: type=11, attr=0x8000000000000000, range=[0x00000000ffc00000-0x00000000ffc40000) (0MB)
[    0.000000] EFI: mem197: type=11, attr=0x8000000000000000, range=[0x00000000ffc40000-0x00000000ffc80000) (0MB)
[    0.000000] EFI: mem198: type=11, attr=0x8000000000000000, range=[0x00000000ffc80000-0x00000000ffca4000) (0MB)
[    0.000000] EFI: mem199: type=11, attr=0x8000000000000000, range=[0x00000000ffca4000-0x00000000ffcb4000) (0MB)
[    0.000000] EFI: mem200: type=11, attr=0x8000000000000000, range=[0x00000000ffcb4000-0x00000000ffffc000) (3MB)
[    0.000000] EFI: mem201: type=11, attr=0x8000000000000000, range=[0x00000000ffffc000-0x0000000100000000) (0MB)

This arranges to pass the EFI memory type through to efi_ioremap, and
makes efi_ioremap use ioremap rather than init_memory_mapping if the
type is EFI_MEMORY_MAPPED_IO.  With this, the above warning goes away.

Signed-off-by: Paul Mackerras <paulus@samba.org>
LKML-Reference: <19062.55858.533494.471153@cargo.ozlabs.ibm.com>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

10 years agox86: Add quirk to make Apple MacBook5,2 use reboot=pci
Paul Mackerras [Mon, 3 Aug 2009 12:47:32 +0000]
x86: Add quirk to make Apple MacBook5,2 use reboot=pci

The latest Apple MacBook (MacBook5,2) doesn't reboot successfully
under Linux; neither the EFI reboot method nor the default method
using the keyboard controller works (the system just hangs and doesn't
reset).  However, the method using the "PCI reset register" at 0xcf9
does work.

This adds a quirk to detect this machine via DMI and force the
reboot_type to BOOT_CF9.  With this it reboots successfully without
requiring a command-line option.  Note that the EFI code forces
reboot_type to BOOT_EFI when the machine is booted via EFI, but this
overrides that since the core_initcall runs after the EFI
initialization code.

Signed-off-by: Paul Mackerras <paulus@samba.org>
LKML-Reference: <19062.56420.501516.316181@cargo.ozlabs.ibm.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

10 years agoiwlagn: do not send key clear commands when rfkill enabled
Reinette Chatre [Mon, 3 Aug 2009 19:10:16 +0000]
iwlagn: do not send key clear commands when rfkill enabled

Do all key clearing except sending sommands to device when rfkill
enabled. When rfkill enabled the interface is brought down and will
be brought back up correctly after rfkill is enabled again.

Same change is not needed for iwl3945 as it ignores return code when
sending key clearing command to device.

This fixes http://bugzilla.kernel.org/show_bug.cgi?id=13742

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Frans Pop <elendil@planet.nl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agolibertas: Read buffer overflow
Roel Kluin [Sun, 2 Aug 2009 07:44:12 +0000]
libertas: Read buffer overflow

Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agodrivers/net/wireless: introduce missing kfree
Julia Lawall [Sat, 1 Aug 2009 08:55:53 +0000]
drivers/net/wireless: introduce missing kfree

Error handling code following a kzalloc should free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agodrivers/net/wireless/iwlwifi: introduce missing kfree
Julia Lawall [Mon, 3 Aug 2009 09:11:45 +0000]
drivers/net/wireless/iwlwifi: introduce missing kfree

Move orthogonal error handling code up before a kzalloc, so that it
doesn't have to free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agozd1211rw: fix unaligned access in zd_mac_rx
Patrick Simmons [Sun, 2 Aug 2009 08:46:28 +0000]
zd1211rw: fix unaligned access in zd_mac_rx

Fix an unaligned memory access in the zd_mac_rx function of zd1211rw
that causes problems on SPARC64.

Signed-off-by: Patrick Simmons <linuxrocks123@netscape.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agocfg80211: fix regression on beacon world roaming feature
Luis R. Rodriguez [Fri, 31 Jul 2009 00:43:48 +0000]
cfg80211: fix regression on beacon world roaming feature

A regression was added through patch a4ed90d6:

"cfg80211: respect API on orig_flags on channel for beacon hint"

We did indeed respect _orig flags but the intention was not clearly
stated in the commit log. This patch fixes firmware issues picked
up by iwlwifi when we lift passive scan of beaconing restrictions
on channels its EEPROM has been configured to always enable.

By doing so though we also disallowed beacon hints on devices
registering their wiphy with custom world regulatory domains
enabled, this happens to be currently ath5k, ath9k and ar9170.
The passive scan and beacon restrictions on those devices would
never be lifted even if we did find a beacon and the hardware did
support such enhancements when world roaming.

Since Johannes indicates iwlwifi firmware cannot be changed to
allow beacon hinting we set up a flag now to specifically allow
drivers to disable beacon hints for devices which cannot use them.

We enable the flag on iwlwifi to disable beacon hints and by default
enable it for all other drivers. It should be noted beacon hints lift
passive scan flags and beacon restrictions when we receive a beacon from
an AP on any 5 GHz non-DFS channels, and channels 12-14 on the 2.4 GHz
band. We don't bother with channels 1-11 as those channels are allowed
world wide.

This should fix world roaming for ath5k, ath9k and ar9170, thereby
improving scan time when we receive the first beacon from any AP,
and also enabling beaconing operation (AP/IBSS/Mesh) on cards which
would otherwise not be allowed to do so. Drivers not using custom
regulatory stuff (wiphy_apply_custom_regulatory()) were not affected
by this as the orig_flags for the channels would have been cleared
upon wiphy registration.

I tested this with a world roaming ath5k card.

Cc: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agocfg80211: add two missing NULL pointer checks
Johannes Berg [Wed, 29 Jul 2009 20:07:44 +0000]
cfg80211: add two missing NULL pointer checks

These pointers can be NULL, the is_mesh() case isn't
ever hit in the current kernel, but cmp_ies() can be
hit under certain conditions.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org [2.6.29, 2.6.30]
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 years agoixgbe: Patch to modify 82598 PCIe completion timeout values
Mallikarjuna R Chilakala [Mon, 3 Aug 2009 07:20:38 +0000]
ixgbe: Patch to modify 82598 PCIe completion timeout values

The default completion timeout values for 82598 should be in the
range of 50us to 50ms, however the hardware default for these
parts is 500us to 1ms which is less than the 10ms recommended by
the pcie spec. To address this we need to increase the value to
either 10ms to 250ms for capability version 1 configuration, or
16ms to 55ms for version 2.

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agobluetooth: rfcomm_init bug fix
Dave Young [Mon, 3 Aug 2009 04:26:16 +0000]
bluetooth: rfcomm_init bug fix

rfcomm tty may be used before rfcomm_tty_driver initilized,
The problem is that now socket layer init before tty layer, if userspace
program do socket callback right here then oops will happen.

reporting in:
http://marc.info/?l=linux-bluetooth&m=124404919324542&w=2

make 3 changes:
1. remove #ifdef in rfcomm/core.c,
make it blank function when rfcomm tty not selected in rfcomm.h

2. tune the rfcomm_init error patch to ensure
tty driver initilized before rfcomm socket usage.

3. remove __exit for rfcomm_cleanup_sockets
because above change need call it in a __init function.

Reported-by: Oliver Hartkopp <oliver@hartkopp.net>
Tested-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agox86: Fix CPA memtype reserving in the set_pages_array*() cases
Thomas Hellstrom [Mon, 3 Aug 2009 07:25:45 +0000]
x86: Fix CPA memtype reserving in the set_pages_array*() cases

The code was incorrectly reserving memtypes using the page
virtual address instead of the physical address. Furthermore,
the code was not ignoring highmem pages as it ought to.

( upstream does not pass in highmem pages yet - but upcoming
  graphics code will do it and there's no reason to not handle
  this properly in the CPA APIs.)

Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=13884

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: <stable@kernel.org>
Cc: dri-devel@lists.sourceforge.net
Cc: venkatesh.pallipadi@intel.com
LKML-Reference: <1249284345-7654-1-git-send-email-thellstrom@vmware.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

10 years agoMIPS: Wire up accept4 syscall.
Ralf Baechle [Mon, 3 Aug 2009 16:27:19 +0000]
MIPS: Wire up accept4 syscall.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: VPE: Delete unused function get_tc_unused().
Ralf Baechle [Mon, 3 Aug 2009 11:57:52 +0000]
MIPS: VPE: Delete unused function get_tc_unused().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: VPE: Fix bogus indentation.
Ralf Baechle [Mon, 3 Aug 2009 11:56:39 +0000]
MIPS: VPE: Fix bogus indentation.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: VPE: Make various functions static.
Ralf Baechle [Mon, 3 Aug 2009 11:54:35 +0000]
MIPS: VPE: Make various functions static.

None of these is used outside the VPE loader.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: VPE: Free relocation chain on error.
Ralf Baechle [Mon, 3 Aug 2009 11:26:40 +0000]
MIPS: VPE: Free relocation chain on error.

This may happen if a bad sequence of relocations is being encountered.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: VPE: Fix compiler warning.
Raghu Gandham [Fri, 10 Jul 2009 09:01:32 +0000]
MIPS: VPE: Fix compiler warning.

Signed-off-by: Raghu Gandham <raghu@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: Module: Make error messages unique.
Ralf Baechle [Mon, 3 Aug 2009 09:50:19 +0000]
MIPS: Module: Make error messages unique.

There were three different errors resulting in a "dangerous relocation"
message.  Add the relocation type to the messgages to make them more
useful.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: Octeon: Run IPI code with interrupts disabled.
David Daney [Fri, 31 Jul 2009 21:30:07 +0000]
MIPS: Octeon: Run IPI code with interrupts disabled.

In mm/slab.c the function do_ccupdate_local requires that interrupts be
disabled.  If they are not, we panic with CONFIG_DEBUG_SLAB.

So we disable interrupts while processing IPIs.  Also these are not shared
irqs, so get rid of the IRQF_SHARED flag.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: Jazz: Fix read buffer overflow
Roel Kluin [Fri, 31 Jul 2009 12:52:51 +0000]
MIPS: Jazz: Fix read buffer overflow

Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: Use DIV_ROUND_CLOSEST
Julia Lawall [Sun, 2 Aug 2009 08:48:08 +0000]
MIPS: Use DIV_ROUND_CLOSEST

The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

#include <linux/kernel.h>

@depends on haskernel@
expression x,__divisor;
@@

- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: MTX-1: Request button GPIO before setting its direction
Florian Fainelli [Sat, 1 Aug 2009 21:51:20 +0000]
MIPS: MTX-1: Request button GPIO before setting its direction

This patch fixes the following warning at boot time:
WARNING: at drivers/gpio/gpiolib.c:83 0x8021d5e0()
autorequest GPIO-207
Modules linked in:
Call Trace:[<8011e0ec>] 0x8011e0ec
[<80110a28>] 0x80110a28
[<80110a28>] 0x80110a28
[..snip..]

The current code does not request the GPIO and attempts
to set its direction, which is a violation of the GPIO API.
This patch also unhardcode the GPIO we request and use
the one we defined in the button driver.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: AR7: Override CFLAGS with -Werror
Florian Fainelli [Fri, 24 Jul 2009 11:19:10 +0000]
MIPS: AR7: Override CFLAGS with -Werror

Now that we have removed all warnings from the ar7 board code we can use
-Werror like on other MIPS boards.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: AR7: Remove unused tnetd7200_get_clock function
Florian Fainelli [Fri, 24 Jul 2009 11:18:42 +0000]
MIPS: AR7: Remove unused tnetd7200_get_clock function

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: AR7: Use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK
Florian Fainelli [Fri, 24 Jul 2009 11:18:16 +0000]
MIPS: AR7: Use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: AR7: Fix build failures when CONFIG_SERIAL_8250 is not enabled
Florian Fainelli [Fri, 24 Jul 2009 11:24:15 +0000]
MIPS: AR7: Fix build failures when CONFIG_SERIAL_8250 is not enabled

This patch fixes the following build failure when CONFIG_SERIAL_8250
is not enabled in the kernel configuration:
arch/mips/ar7/built-in.o: In function 'ar7_register_devices':
platform.c:(.init.text+0x61c): undefined reference to 'early_serial_setup'
platform.c:(.init.text+0x61c): relocation truncated to fit: R_MIPS_26 against 'early_serial_setup'
platform.c:(.init.text+0x68c): undefined reference to 'early_serial_setup'
platform.c:(.init.text+0x68c): relocation truncated to fit: R_MIPS_26 against 'early_serial_setup'

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: Fix read buffer overflow
Roel Kluin [Wed, 29 Jul 2009 20:02:53 +0000]
MIPS: Fix read buffer overflow

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: AR7: Fix build warning on memory.c
Florian Fainelli [Tue, 21 Jul 2009 10:38:10 +0000]
MIPS: AR7: Fix build warning on memory.c

This patch fixes the following build warning:
arch/mips/ar7/memory.c: In function 'memsize':
arch/mips/ar7/memory.c:55: warning: passing argument 1 of 'writel' makes integer from pointer without a cast

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: Octeon PCIe: Make hardware and software bus numbers match.
David Daney [Wed, 15 Jul 2009 01:16:50 +0000]
MIPS: Octeon PCIe: Make hardware and software bus numbers match.

Some SiliconImage PCIe SATA controlers are not detected when the bus
numbers differ.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: RBTX4939: Fix IOC pin-enable register updating
Atsushi Nemoto [Wed, 15 Jul 2009 13:03:56 +0000]
MIPS: RBTX4939: Fix IOC pin-enable register updating

The rbtx4939_update_ioc_pen() expects txx9_ce_res[] already initialized.
Call it after tx4939_setup().

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: Simplify and correct interrupt handling for MSP4200
Shane McDonald [Sun, 12 Jul 2009 16:42:06 +0000]
MIPS: Simplify and correct interrupt handling for MSP4200

The current interrupt handling code for the MSP4200 always masks an
interrupt before acknowledging it.  This is not required, as that will be
handled by the level interrupt handler.  This change simplifies the MSP4200
code to remove the masking in the ack routine, and makes sure that the
minimum required operation is performed for masking and acking, rather
than always both masking and acking the interrupt.

Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: MSPxxxx: define MIPS34K_MISSED_ITLB_WAR for other PMC-Sierra SoC
Florian Fainelli [Mon, 27 Apr 2009 14:47:23 +0000]
MIPS: MSPxxxx: define MIPS34K_MISSED_ITLB_WAR for other PMC-Sierra SoC

Trying to build a PMC-Sierra MSP4200 VoIP gateway defconfig will not work
since MIPS34K_MISSED_ITLB_WAR is not defined for all boards supported
within pmc-serria/msp71xx. This patch defines MIPS34K_MISSED_ITLB_WAR to
prevent such build failures:

  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  SYMLINK include/asm -> include/asm-mips
CC arch/mips/kernel/asm-offsets.s
In file included fromlinux-msp71xx/linux-2.6.29/arch/mips/include/asm/bitops.h:24,
                 from include/linux/bitops.h:17,
                 from include/linux/kernel.h:15,
                 from include/linux/sched.h:52,
                 from arch/mips/kernel/asm-offsets.c:13:
linux-msp71xx/linux-2.6.29/arch/mips/include/asm/war.h:241:2: error: #error Check setting of MIPS34K_MISSED_ITLB_WAR for your
platform

This fixes a compile error when building for the MSP4200 boards.  Identical
patches to fix this were send by

  Florian Fainelli <florian@openwrt.org>
  Shane McDonald <mcdonald.shane@gmail.com>

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

10 years agoMIPS: MSP71xx: fix build failures on msp_irq_slp.c
Florian Fainelli [Mon, 27 Apr 2009 14:59:48 +0000]
MIPS: MSP71xx: fix build failures on msp_irq_slp.c

Trying to build MSP4200 VoIP defconfig also fails on msp_irq_slp.c with a
non-existing reference to mask_slp_irq, which is in turn mask_msp_slp_irq.
Passed that, we will also miss a comma when calling
set_irq_chip_and_handler. This patch fixes both issues.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>