8 years agoMerge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 20 May 2011 00:28:58 +0000]
Merge branch 'core-iommu-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, gart: Rename pci-gart_64.c to amd_gart_64.c
  x86/amd-iommu: Use threaded interupt handler
  arch/x86/kernel/pci-iommu_table.c: Convert sprintf_symbol to %pS
  x86/amd-iommu: Add support for invalidate_all command
  x86/amd-iommu: Add extended feature detection
  x86/amd-iommu: Add ATS enable/disable code
  x86/amd-iommu: Add flag to indicate IOTLB support
  x86/amd-iommu: Flush device IOTLB if ATS is enabled
  x86/amd-iommu: Select PCI_IOV with AMD IOMMU driver
  PCI: Move ATS declarations in seperate header file
  dma-debug: print information about leaked entry
  x86/amd-iommu: Flush all internal TLBs when IOMMUs are enabled
  x86/amd-iommu: Rename iommu_flush_device
  x86/amd-iommu: Improve handling of full command buffer
  x86/amd-iommu: Rename iommu_flush* to domain_flush*
  x86/amd-iommu: Remove command buffer resetting logic
  x86/amd-iommu: Cleanup completion-wait handling
  x86/amd-iommu: Cleanup inv_pages command handling
  x86/amd-iommu: Move inv-dte command building to own function
  x86/amd-iommu: Move compl-wait command building to own function

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Thu, 19 May 2011 23:46:07 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/rafael/suspend-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: (34 commits)
  PM: Introduce generic prepare and complete callbacks for subsystems
  PM: Allow drivers to allocate memory from .prepare() callbacks safely
  PM: Remove CONFIG_PM_VERBOSE
  Revert "PM / Hibernate: Reduce autotuned default image size"
  PM / Hibernate: Add sysfs knob to control size of memory for drivers
  PM / Wakeup: Remove useless synchronize_rcu() call
  kmod: always provide usermodehelper_disable()
  PM / ACPI: Remove acpi_sleep=s4_nonvs
  PM / Wakeup: Fix build warning related to the "wakeup" sysfs file
  PM: Print a warning if firmware is requested when tasks are frozen
  PM / Runtime: Rework runtime PM handling during driver removal
  Freezer: Use SMP barriers
  PM / Suspend: Do not ignore error codes returned by suspend_enter()
  PM: Fix build issue in clock_ops.c for CONFIG_PM_RUNTIME unset
  PM: Revert "driver core: platform_bus: allow runtime override of dev_pm_ops"
  OMAP1 / PM: Use generic clock manipulation routines for runtime PM
  PM: Remove sysdev suspend, resume and shutdown operations
  PM / PowerPC: Use struct syscore_ops instead of sysdevs for PM
  PM / UNICORE32: Use struct syscore_ops instead of sysdevs for PM
  PM / AVR32: Use struct syscore_ops instead of sysdevs for PM
  ...

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Thu, 19 May 2011 23:44:34 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/qib: Use pci_dev->revision
  RDMA/iwcm: Get rid of enum iw_cm_event_status
  IB/ipath: Use pci_dev->revision, again
  IB/qib: Prevent driver hang with unprogrammed boards
  RDMA/cxgb4: EEH errors can hang the driver
  RDMA/cxgb4: Reset wait condition atomically
  RDMA/cxgb4: Fix missing parentheses
  RDMA/cxgb4: Initialization errors can cause crash
  RDMA/cxgb4: Don't change QP state outside EP lock
  RDMA/cma: Add an ID_REUSEADDR option
  RDMA/cma: Fix handling of IPv6 addressing in cma_use_port

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Thu, 19 May 2011 23:44:13 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/cmarinas/linux-2.6-cm

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm:
  kmemleak: Initialise kmemleak after debug_objects_mem_init()
  kmemleak: Select DEBUG_FS unconditionally in DEBUG_KMEMLEAK
  kmemleak: Do not return a pointer to an object that kmemleak did not get

8 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Thu, 19 May 2011 23:40:47 +0000]
Merge branch 'upstream' of git://git.linux-mips.org/upstream-linus

* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (48 commits)
  MIPS: Move arch_get_unmapped_area and gang to new file.
  MIPS: Cleanup arch_get_unmapped_area
  MIPS: Octeon: Don't request interrupts for unused IPI mailbox bits.
  Octeon: Fix interrupt irq settings for performance counters.
  MIPS: Fix build warnings on defconfigs
  MIPS: Lemote 2F, Malta: Fix build warning
  MIPS: Set ELF AT_PLATFORM string for Loongson2 processors
  MIPS: Set ELF AT_PLATFORM string for BMIPS processors
  MIPS: Introduce set_elf_platform() helper function
  MIPS: JZ4740: setup: Autodetect physical memory.
  MIPS: BCM47xx: Fix MAC address parsing.
  MIPS: BCM47xx: Extend the filling of SPROM from NVRAM
  MIPS: BCM47xx: Register SSB fallback sprom callback
  MIPS: BCM47xx: Extend bcm47xx_fill_sprom with prefix.
  SSB: Change fallback sprom to callback mechanism.
  MIPS: Alchemy: Clean up GPIO registers and accessors
  MIPS: Alchemy: Cleanup DMA addresses
  MIPS: Alchemy: Rewrite ethernet platform setup
  MIPS: Alchemy: Rewrite UART setup and constants.
  MIPS: Alchemy: Convert dbdma.c to syscore_ops
  ...

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux...
Linus Torvalds [Thu, 19 May 2011 23:27:21 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  input/atari: Fix mouse movement and button mapping
  input/atari: Fix atarimouse init
  input/atari: Use the correct mouse interrupt hook
  m68k/atari: Do not use "/" in interrupt names
  m68k: unistd - Comment out definitions for unimplemented syscalls
  m68k: Really wire up sys_pselect6 and sys_ppoll
  m68k: Merge mmu and non-mmu versions of sys_call_table
  MAINTAINERS: Roman Zippel has been MIA for several years.
  m68k: bitops - Never step beyond the end of the bitmap
  m68k: bitops - offset == ((long)p - (long)vaddr) * 8

8 years agoMerge branches 'stable/irq', 'stable/p2m.bugfixes', 'stable/e820.bugfixes' and 'stabl...
Linus Torvalds [Thu, 19 May 2011 23:14:58 +0000]
Merge branches 'stable/irq', 'stable/p2m.bugfixes', 'stable/e820.bugfixes' and 'stable/mmu.bugfixes' of git://git./linux/kernel/git/konrad/xen

* 'stable/irq' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: do not clear and mask evtchns in __xen_evtchn_do_upcall

* 'stable/p2m.bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/p2m: Create entries in the P2M_MFN trees's to track 1-1 mappings

* 'stable/e820.bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/setup: Fix for incorrect xen_extra_mem_start initialization under 32-bit
  xen/setup: Ignore E820_UNUSABLE when setting 1-1 mappings.

* 'stable/mmu.bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen mmu: fix a race window causing leave_mm BUG()

8 years agoMerge branches 'stable/balloon.cleanup' and 'stable/general.cleanup' of git://git...
Linus Torvalds [Thu, 19 May 2011 23:14:35 +0000]
Merge branches 'stable/balloon.cleanup' and 'stable/general.cleanup' of git://git./linux/kernel/git/konrad/xen

* 'stable/balloon.cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/balloon: Move dec_totalhigh_pages() from __balloon_append() to balloon_append()
  xen/balloon: Clarify credit calculation
  xen/balloon: Simplify HVM integration
  xen/balloon: Use PageHighMem() for high memory page detection

* 'stable/general.cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  drivers/xen/sys-hypervisor: Cleanup code/data sections definitions
  arch/x86/xen/smp: Cleanup code/data sections definitions
  arch/x86/xen/time: Cleanup code/data sections definitions
  arch/x86/xen/xen-ops: Cleanup code/data sections definitions
  arch/x86/xen/mmu: Cleanup code/data sections definitions
  arch/x86/xen/setup: Cleanup code/data sections definitions
  arch/x86/xen/enlighten: Cleanup code/data sections definitions
  arch/x86/xen/irq: Cleanup code/data sections definitions
  xen: tidy up whitespace in drivers/xen/Makefile

8 years agoMerge branches 'stable/backend.base.v3' and 'stable/gntalloc.v7' of git://git.kernel...
Linus Torvalds [Thu, 19 May 2011 23:14:25 +0000]
Merge branches 'stable/backend.base.v3' and 'stable/gntalloc.v7' of git://git./linux/kernel/git/konrad/xen

* 'stable/backend.base.v3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/pci: Fix compiler error when CONFIG_XEN_PRIVILEGED_GUEST is not set.
  xen/p2m: Add EXPORT_SYMBOL_GPL to the M2P override functions.
  xen/p2m/m2p/gnttab: Support GNTMAP_host_map in the M2P override.
  xen/irq: The Xen hypervisor cleans up the PIRQs if the other domain forgot.
  xen/irq: Export 'xen_pirq_from_irq' function.
  xen/irq: Add support to check if IRQ line is shared with other domains.
  xen/irq: Check if the PCI device is owned by a domain different than DOMID_SELF.
  xen/pci: Add xen_[find|register|unregister]_device_domain_owner functions.

* 'stable/gntalloc.v7' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/gntdev,gntalloc: Remove unneeded VM flags

8 years agoMerge branch 'stable/broadcom.ibft' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 19 May 2011 23:14:02 +0000]
Merge branch 'stable/broadcom.ibft' of git://git./linux/kernel/git/konrad/ibft-2.6

* 'stable/broadcom.ibft' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft-2.6:
  iscsi_ibft: search for broadcom specific ibft sign (v2)

8 years agoMerge branch 'move-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/davej...
Linus Torvalds [Thu, 19 May 2011 22:59:24 +0000]
Merge branch 'move-drivers' of git://git./linux/kernel/git/davej/cpufreq

* 'move-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Move x86 drivers to drivers/cpufreq/

8 years agoMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Thu, 19 May 2011 22:57:29 +0000]
Merge branch 'next' of git://git./linux/kernel/git/davej/cpufreq

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] remove redundant sprintf from request_module call.
  [CPUFREQ] cpufreq_stats.c: Fixed brace coding style issue
  [CPUFREQ] Fix memory leak in cpufreq_stat
  [CPUFREQ] cpufreq.h: Fix some checkpatch.pl coding style issues.
  [CPUFREQ] use dynamic debug instead of custom infrastructure
  [CPUFREQ] CPU hotplug, re-create sysfs directory and symlinks
  [CPUFREQ] Fix _OSC UUID in pcc-cpufreq

8 years ago[CPUFREQ] Move x86 drivers to drivers/cpufreq/
Dave Jones [Thu, 19 May 2011 22:51:07 +0000]
[CPUFREQ] Move x86 drivers to drivers/cpufreq/

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

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
Linus Torvalds [Thu, 19 May 2011 21:56:13 +0000]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus

* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  params.c: Use new strtobool function to process boolean inputs
  debugfs: move to new strtobool
  Add a strtobool function matching semantics of existing in kernel equivalents
  modpost: Update 64k section support for binutils 2.18.50
  module: Use binary search in lookup_symbol()
  module: Use the binary search for symbols resolution
  lib: Add generic binary search function to the kernel.
  module: Sort exported symbols
  module: each_symbol_section instead of each_symbol
  module: split unset_section_ro_nx function.
  module: undo module RONX protection correctly.
  module: zero mod->init_ro_size after init is freed.
  minor ANSI prototype sparse fix
  module: reorder kparam_array to remove alignment padding on 64 bit builds
  module: remove 64 bit alignment padding from struct module with CONFIG_TRACE*
  module: do not hide __modver_version_show declaration behind ifdef
  module: deal with alignment issues in built-in module versions

8 years agoMerge branch 'docs-move' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap...
Linus Torvalds [Thu, 19 May 2011 21:55:34 +0000]
Merge branch 'docs-move' of git://git./linux/kernel/git/rdunlap/linux-docs

* 'docs-move' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs:
  Correct occurrences of - Documentation/kvm/ to Documentation/virtual/kvm - Documentation/uml/ to Documentation/virtual/uml - Documentation/lguest/ to Documentation/virtual/lguest throughout the kernel source tree.
  Add a 00-INDEX file to Documentation/virtual Remove uml from the top level 00-INDEX file.
  Move kvm, uml, and lguest subdirectories under a common "virtual" directory, I.E:

8 years agolist: remove prefetching from regular list iterators
Linus Torvalds [Thu, 19 May 2011 21:15:29 +0000]
list: remove prefetching from regular list iterators

This is removes the use of software prefetching from the regular list
iterators.  We don't want it.  If you do want to prefetch in some
iterator of yours, go right ahead.  Just don't expect the iterator to do
it, since normally the downsides are bigger than the upsides.

It also replaces <linux/prefetch.h> with <linux/const.h>, because the
use of LIST_POISON ends up needing it.  <linux/poison.h> is sadly not
self-contained, and including prefetch.h just happened to hide that.

Suggested by David Miller (networking has a lot of regular lists that
are often empty or a single entry, and prefetching is not going to do
anything but add useless instructions).

Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agohlist: remove software prefetching in hlist iterators
Linus Torvalds [Thu, 19 May 2011 20:50:07 +0000]
hlist: remove software prefetching in hlist iterators

They not only increase the code footprint, they actually make things
slower rather than faster.  On internationally acclaimed benchmarks
("make -j16" on an already fully built kernel source tree) the hlist
prefetching slows down the build by up to 1%.

(Almost all of it comes from hlist_for_each_entry_rcu() as used by
avc_has_perm_noaudit(), which is very hot due to all the pathname
lookups to see if there is anything to do).

The cause seems to be two-fold:

 - on at least some Intel cores, prefetch(NULL) ends up with some
   microarchitectural stall due to the TLB miss that it incurs.  The
   hlist case triggers this very commonly, since the NULL pointer is the
   last entry in the list.

 - the prefetch appears to cause more D$ activity, probably because it
   prefetches hash list entries that are never actually used (because we
   ended the search early due to a hit).

Regardless, the numbers clearly say that the implicit prefetching is
simply a bad idea.  If some _particular_ user of the hlist iterators
wants to prefetch the next list entry, they can do so themselves
explicitly, rather than depend on all list iterators doing so
implicitly.

Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agokmemleak: Initialise kmemleak after debug_objects_mem_init()
Catalin Marinas [Thu, 19 May 2011 15:25:30 +0000]
kmemleak: Initialise kmemleak after debug_objects_mem_init()

Kmemleak frees objects via RCU and when CONFIG_DEBUG_OBJECTS_RCU_HEAD
is enabled, the RCU callback triggers a call to free_object() in
lib/debugobjects.c. Since kmemleak is initialised before debug objects
initialisation, it may result in a kernel panic during booting. This
patch moves the kmemleak_init() call after debug_objects_mem_init().

Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Tested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@kernel.org>

8 years agokmemleak: Select DEBUG_FS unconditionally in DEBUG_KMEMLEAK
Catalin Marinas [Wed, 27 Apr 2011 16:06:19 +0000]
kmemleak: Select DEBUG_FS unconditionally in DEBUG_KMEMLEAK

In the past DEBUG_FS used to depend on SYSFS and DEBUG_KMEMLEAK selected
it conditionally. This is no longer the case, so always select DEBUG_FS
via DEBUG_KMEMLEAK.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

8 years agokmemleak: Do not return a pointer to an object that kmemleak did not get
Catalin Marinas [Wed, 27 Apr 2011 15:44:26 +0000]
kmemleak: Do not return a pointer to an object that kmemleak did not get

The kmemleak_seq_next() function tries to get an object (and increment
its use count) before returning it. If it could not get the last object
during list traversal (because it may have been freed), the function
should return NULL rather than a pointer to such object that it did not
get.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Acked-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Cc: <stable@kernel.org>

8 years agoinput/atari: Fix mouse movement and button mapping
Geert Uytterhoeven [Mon, 31 Jan 2011 19:15:04 +0000]
input/atari: Fix mouse movement and button mapping

Up and down movements were reversed, left and right buttons were swapped.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

8 years agoinput/atari: Fix atarimouse init
Michael Schmitz [Sun, 28 Dec 2008 22:00:45 +0000]
input/atari: Fix atarimouse init

Atarimouse fails to load as a module (with ENODEV), due to a brown paper
bag bug, misinterpreting the semantics of atari_keyb_init().

[geert] Propagate the return value of atari_keyb_init() everywhere

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

8 years agoinput/atari: Use the correct mouse interrupt hook
Michael Schmitz [Tue, 16 Dec 2008 20:26:03 +0000]
input/atari: Use the correct mouse interrupt hook

The Atari keyboard driver calls atari_mouse_interrupt_hook if it's set, not
atari_input_mouse_interrupt_hook. Fix below.

[geert] Killed off atari_mouse_interrupt_hook completely, after fixing another
incorrect assignment in atarimouse.c.

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

8 years agom68k/atari: Do not use "/" in interrupt names
Geert Uytterhoeven [Wed, 4 May 2011 12:55:41 +0000]
m68k/atari: Do not use "/" in interrupt names

It may trigger a warning in fs/proc/generic.c:__xlate_proc_name() when
trying to add an entry for the interrupt handler to sysfs.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

8 years agom68k: unistd - Comment out definitions for unimplemented syscalls
Geert Uytterhoeven [Thu, 5 May 2011 18:33:02 +0000]
m68k: unistd - Comment out definitions for unimplemented syscalls

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

8 years agom68k: Really wire up sys_pselect6 and sys_ppoll
Geert Uytterhoeven [Fri, 6 May 2011 18:57:11 +0000]
m68k: Really wire up sys_pselect6 and sys_ppoll

We reserved the numbers a long time ago, but never wired them up in the
syscall table as they need TIF_RESTORE_SIGMASK, which we only got last year
in commit cb6831d5d3099e772a510eb3e1ed0760ccffb45e ("m68k: Switch to saner
sigsuspend()")

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: stable@kernel.org

8 years agom68k: Merge mmu and non-mmu versions of sys_call_table
Geert Uytterhoeven [Wed, 6 Apr 2011 20:12:53 +0000]
m68k: Merge mmu and non-mmu versions of sys_call_table

Impact for nommu:
  - Store table in .rodata instead of .text,
  - Let kernel/sys_ni.c handle the stubbing of MMU-only syscalls,
  - Implement sys_mremap and sys_nfsservct,
  - Remove unused padding at the end of the table.

Impact for mmu:
  - Store table in .rodata instead of .data.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>

8 years agoMAINTAINERS: Roman Zippel has been MIA for several years.
Geert Uytterhoeven [Sun, 24 Apr 2011 08:32:49 +0000]
MAINTAINERS: Roman Zippel has been MIA for several years.

Hence make AFFS and HFS orphans, and remove him as an m68k maintainer.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

8 years agom68k: bitops - Never step beyond the end of the bitmap
Geert Uytterhoeven [Sun, 3 Apr 2011 12:00:10 +0000]
m68k: bitops - Never step beyond the end of the bitmap

find_next bitops on m68k (find_next_zero_bit, find_next_bit, and
find_next_bit_le) may cause out of bounds memory access
when the bitmap size in bits % 32 != 0 and offset (the bitnumber
to start searching at) is very close to the bitmap size.

For example,

       unsigned long bitmap[2] = { 0, 0 };
       find_next_bit(bitmap, 63, 62);

1. find_next_bit() tries to find any set bits in bitmap[1],
   but no bits set.

2. Then find_first_bit(bimap + 2, -1)

3. Unfortunately find_first_bit() takes unsigned int as the size argument.

4. find_first_bit will access bitmap[2~] until it find any set bits.

Add missing tests for stepping beyond the end of the bitmap to all
find_{first,next}_*() functions, and make sure they never return a value
larger than the bitmap size.

Reported-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

8 years agom68k: bitops - offset == ((long)p - (long)vaddr) * 8
Geert Uytterhoeven [Sun, 3 Apr 2011 11:32:00 +0000]
m68k: bitops - offset == ((long)p - (long)vaddr) * 8

Hence use "offset" in find_next_{,zero_}bit(), like is already done for
find_next_{,zero_}bit_le()

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

8 years agodrivers/xen/sys-hypervisor: Cleanup code/data sections definitions
Daniel Kiper [Wed, 4 May 2011 18:19:49 +0000]
drivers/xen/sys-hypervisor: Cleanup code/data sections definitions

Cleanup code/data sections definitions
accordingly to include/linux/init.h.

Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

8 years agoarch/x86/xen/smp: Cleanup code/data sections definitions
Daniel Kiper [Wed, 4 May 2011 18:18:05 +0000]
arch/x86/xen/smp: Cleanup code/data sections definitions

Cleanup code/data sections definitions
accordingly to include/linux/init.h.

Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

8 years agoarch/x86/xen/time: Cleanup code/data sections definitions
Daniel Kiper [Wed, 4 May 2011 18:18:45 +0000]
arch/x86/xen/time: Cleanup code/data sections definitions

Cleanup code/data sections definitions
accordingly to include/linux/init.h.

Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

8 years agoarch/x86/xen/xen-ops: Cleanup code/data sections definitions
Daniel Kiper [Wed, 4 May 2011 18:19:15 +0000]
arch/x86/xen/xen-ops: Cleanup code/data sections definitions

Cleanup code/data sections definitions
accordingly to include/linux/init.h.

Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

8 years agoarch/x86/xen/mmu: Cleanup code/data sections definitions
Daniel Kiper [Thu, 12 May 2011 21:19:53 +0000]
arch/x86/xen/mmu: Cleanup code/data sections definitions

Cleanup code/data sections definitions
accordingly to include/linux/init.h.

Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
[v1: Rebased on top of latest linus's to include fixes in mmu.c]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

8 years agoMIPS: Move arch_get_unmapped_area and gang to new file.
Ralf Baechle [Thu, 19 May 2011 08:21:33 +0000]
MIPS: Move arch_get_unmapped_area and gang to new file.

It never really belonged into syscall.c and it's about to become well more
complex.

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

8 years agoMIPS: Cleanup arch_get_unmapped_area
Ralf Baechle [Tue, 17 May 2011 15:18:09 +0000]
MIPS: Cleanup arch_get_unmapped_area

As noticed by Kevin Cernekee <cernekee@gmail.com> in
http://www.linux-mips.org/cgi-bin/extract-mesg.cgi?a=linux-mips&m=2011-05&i=BANLkTikq04wuK%3Dbz%2BLieavmm3oDtoYWKxg%40mail.gmail.com

Patchwork: https://patchwork.linux-mips.org/patch/2387/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Octeon: Don't request interrupts for unused IPI mailbox bits.
David Daney [Thu, 17 Feb 2011 22:47:52 +0000]
MIPS: Octeon: Don't request interrupts for unused IPI mailbox bits.

We only use the three low-order mailbox bits.  Leave the upper bits alone
for possible use by drivers and other software.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2090/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoOcteon: Fix interrupt irq settings for performance counters.
Chandrakala Chavva [Thu, 17 Feb 2011 21:57:52 +0000]
Octeon: Fix interrupt irq settings for performance counters.

Octeon uses different interrupt irq for timer and performance counters.
Set CvmCtl[IPPCI] to correct irq value very early.

Signed-off-by: Chandrakala Chavva <cchavva@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Cc: Chandrakala Chavva <cchavva@caviumnetworks.com>
Patchwork: https://patchwork.linux-mips.org/patch/2085/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Fix build warnings on defconfigs
Wanlong Gao [Sat, 9 Apr 2011 19:04:18 +0000]
MIPS: Fix build warnings on defconfigs

Since d45dcef77019012fc6769e657fc2f1a5d681bbbb ["Bluetooth: Fix BT_L2CAP
and BT_SCO in Kconfig"] BT_L2CAP=m and BT_SCO=m are no longer valid so
change the settings from m to y.

[ralf@linux-mips.org: Merging only the MIPS parts of this patch.]

Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com>
To: akpm@linux-foundation.org
To: manuel.lauss@googlemail.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linuxppc-dev@lists.ozlabs.org
Patchwork: https://patchwork.linux-mips.org/patch/2277/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lemote 2F, Malta: Fix build warning
Wanlong Gao [Sat, 9 Apr 2011 17:42:17 +0000]
MIPS: Lemote 2F, Malta: Fix build warning

Since 5ada28bf76752e33dce3d807bf0dfbe6d1b943ad ["led-class: always
implement blinking"] LEDS_CLASS=m is no longer valid so change the setting
from m to y.

Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com>
To: david.woodhouse@intel.com
To: akpm@linux-foundation.org
To: mingo@elte.hu
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2276/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Set ELF AT_PLATFORM string for Loongson2 processors
Robert Millan [Sat, 16 Apr 2011 18:29:29 +0000]
MIPS: Set ELF AT_PLATFORM string for Loongson2 processors

Signed-off-by: Robert Millan <rmh@gnu.org>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: wu zhangjin <wuzhangjin@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2302/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Set ELF AT_PLATFORM string for BMIPS processors
Kevin Cernekee [Sat, 16 Apr 2011 18:29:28 +0000]
MIPS: Set ELF AT_PLATFORM string for BMIPS processors

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Cc: Robert Millan <rmh@gnu.org>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: wu zhangjin <wuzhangjin@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2300/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Introduce set_elf_platform() helper function
Robert Millan [Mon, 18 Apr 2011 18:37:55 +0000]
MIPS: Introduce set_elf_platform() helper function

Replace these sequences:

if (cpu == 0)
__elf_platform = "foo";

with a trivial inline function.

Signed-off-by: Robert Millan <rmh@gnu.org>
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: wu zhangjin <wuzhangjin@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2304/
Patchwork: https://patchwork.linux-mips.org/patch/2374/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: JZ4740: setup: Autodetect physical memory.
Maarten ter Huurne [Mon, 2 May 2011 09:47:00 +0000]
MIPS: JZ4740: setup: Autodetect physical memory.

Assume that the boot loader knows the physical memory of the system and
deduce that information from the contents of the SDRAM control register.
It is still possible to override with with the "mem=" parameter, but we
have a sensible default now.

Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2319/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: BCM47xx: Fix MAC address parsing.
Hauke Mehrtens [Tue, 10 May 2011 21:31:34 +0000]
MIPS: BCM47xx: Fix MAC address parsing.

Some devices like the Netgear WGT634u are using minuses between the blocks
of the MAC address and other devices are using colons to separate them.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2366/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: BCM47xx: Extend the filling of SPROM from NVRAM
Hauke Mehrtens [Tue, 10 May 2011 21:31:33 +0000]
MIPS: BCM47xx: Extend the filling of SPROM from NVRAM

Some members of the struct ssb_sprom where not filled with data available
in the NVRAM. Some attribute names in the NVRAM changed from SPROM version
3 to version 4. This patch was done by analyzing the the pci sprom parser
in the ssb code and some open source parts of the braodcom wireless driver
used on embedded devices.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2365/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: BCM47xx: Register SSB fallback sprom callback
Hauke Mehrtens [Tue, 10 May 2011 21:31:32 +0000]
MIPS: BCM47xx: Register SSB fallback sprom callback

We are generating the prefix based on the PCI bus address the device is
on. This is done like Broadcom does it in their code expect that the the
bus number is increased by one. In the SB bus implementation used by
Broadcom the SB bus emulates a PCI bus so the kernel sees one PCI bus
more then in our implementation. We do not handle prefixes like sb/1/
yet as they are only used on the new bus which is not implemented yet.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2364/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: BCM47xx: Extend bcm47xx_fill_sprom with prefix.
Hauke Mehrtens [Tue, 10 May 2011 21:31:31 +0000]
MIPS: BCM47xx: Extend bcm47xx_fill_sprom with prefix.

When an other SSB based device without an own SPROM is attached, using the
PCI bus to the main SSB based device, the data normally found in the SPROM
will be stored in the NVRAM on modern devices. The keys, to load the data
from the NVRAM, are all using some sort of prefix like pci/1/1/, pci/1/3/
or sb/1/ before the actual key. This patch extends bcm47xx_fill_sprom() to
make it possible to read out these values when some prefix was used.

The keys for the SPROM data used on the main chip does not have a prefix.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2363/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoSSB: Change fallback sprom to callback mechanism.
Hauke Mehrtens [Tue, 10 May 2011 21:31:30 +0000]
SSB: Change fallback sprom to callback mechanism.

Some embedded devices like the Netgear WNDR3300 have two SSB based cards
without an own sprom on the pci bus. We have to provide two different
fallback sproms for these and this was not possible with the old solution.
In the bcm47xx architecture the sprom data is stored in the nvram in the
main flash storage. The architecture code will be able to fill the sprom
with the stored data based on the bus where the device was found.

The bcm63xx code should do the same thing as before, just using the new
API.

Acked-by: Michael Buesch <mb@bu3sch.de>
Cc: netdev@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
Cc: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2362/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Alchemy: Clean up GPIO registers and accessors
Manuel Lauss [Sun, 8 May 2011 08:42:20 +0000]
MIPS: Alchemy: Clean up GPIO registers and accessors

remove au_readl/au_writel, remove the predefined GPIO1/2 KSEG1 register
addresses and fix the fallout in all boards and drivers.

This also fixes a bug in the mtx-1_wdt driver which was introduced by
commit 6ea8115bb6f359df4f45152f2b40e1d4d1891392
("Convert mtx1 wdt to be a platform device and use generic GPIO API")
before this patch mtx-1_wdt only modified GPIO215, the patch then
used the gpio resource information as bit index into the GPIO2 register
but the conversion to the GPIO API didn't realize that.
With this patch the drivers original behaviour is restored and GPIO15
is left alone.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Cc: Florian Fainelli <florian@openwrt.org>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: linux-watchdog@vger.kernel.org
Cc: Wim Van Sebroeck <wim@iguana.be>
Patchwork: https://patchwork.linux-mips.org/patch/2381/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org

8 years agoMIPS: Alchemy: Cleanup DMA addresses
Manuel Lauss [Sun, 8 May 2011 08:42:19 +0000]
MIPS: Alchemy: Cleanup DMA addresses

According to the databooks, the Au1000 DMA engine must be programmed with
the physical FIFO addresses.  This patch does that; furthermore this
opened the possibility to get rid of a lot of now unnecessary address
defines.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Patchwork: https://patchwork.linux-mips.org/patch/2348/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org

8 years agoMIPS: Alchemy: Rewrite ethernet platform setup
Manuel Lauss [Sun, 8 May 2011 08:42:18 +0000]
MIPS: Alchemy: Rewrite ethernet platform setup

Rewrite ethernet setup to use runtime cpu detection, and also clean up
the ethernet base address mess as far as possible.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Patchwork: https://patchwork.linux-mips.org/patch/2353/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org

8 years agoMIPS: Alchemy: Rewrite UART setup and constants.
Manuel Lauss [Sun, 8 May 2011 08:42:17 +0000]
MIPS: Alchemy: Rewrite UART setup and constants.

Detect CPU type at runtime and setup uarts accordingly; also clean up the
uart base address mess in the process as far as possible.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Patchwork: https://patchwork.linux-mips.org/patch/2352/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org

8 years agoMIPS: Alchemy: Convert dbdma.c to syscore_ops
Manuel Lauss [Sun, 8 May 2011 08:42:16 +0000]
MIPS: Alchemy: Convert dbdma.c to syscore_ops

Convert the PM sysdev to syscore_ops and clean up the ddma addresses a bit.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Patchwork: https://patchwork.linux-mips.org/patch/2351/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Alchemy: Convert irq.c to syscore_ops.
Manuel Lauss [Sun, 8 May 2011 08:42:15 +0000]
MIPS: Alchemy: Convert irq.c to syscore_ops.

Convert the PM sysdev to use syscore_ops instead.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Patchwork: https://patchwork.linux-mips.org/patch/2350/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Alchemy: irq code and constant cleanup
Manuel Lauss [Sun, 8 May 2011 08:42:14 +0000]
MIPS: Alchemy: irq code and constant cleanup

replace au_readl/au_writel with __raw_readl/__raw_writel,
and clean up IC-related stuff from the headers.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Patchwork: https://patchwork.linux-mips.org/patch/2354/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Alchemy: update inlinable GPIO API
Manuel Lauss [Sun, 8 May 2011 08:42:13 +0000]
MIPS: Alchemy: update inlinable GPIO API

This fixes a build failure with gpio_keys and CONFIG_GPIOLIB=n (mtx1):
CC drivers/input/keyboard/gpio_keys.o
gpio_keys.c: In function 'gpio_keys_report_event':
gpio_keys.c:325:2: error: implicit declaration of function 'gpio_get_value_cansleep'
gpio_keys.c: In function 'gpio_keys_setup_key':
gpio_keys.c:390:3: error: implicit declaration of function 'gpio_set_debounce'

Also add stubs for the other new functions.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Patchwork: https://patchwork.linux-mips.org/patch/2346/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: DB1200: Set Config[OD] for improved stability.
Manuel Lauss [Sun, 8 May 2011 08:42:12 +0000]
MIPS: DB1200: Set Config[OD] for improved stability.

Setting Config[OD] gets rid of a _LOT_ of spurious CPLD interrupts,
but also decreases overall performance a bit.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Patchwork: https://patchwork.linux-mips.org/patch/2347/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Split do_syscall_trace into two functions.
Ralf Baechle [Thu, 19 May 2011 08:21:29 +0000]
MIPS: Split do_syscall_trace into two functions.

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

8 years agoMIPS: Use single define for pending work on syscall exit
Ralf Baechle [Thu, 19 May 2011 08:21:28 +0000]
MIPS: Use single define for pending work on syscall exit

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

8 years agoMIPS: IP27: Remove pointless switch statement.
Ralf Baechle [Thu, 19 May 2011 08:21:28 +0000]
MIPS: IP27: Remove pointless switch statement.

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

8 years agoMIPS: Lantiq: Add watchdog support
John Crispin [Thu, 5 May 2011 21:00:23 +0000]
MIPS: Lantiq: Add watchdog support

This patch adds the driver for the watchdog found inside the Lantiq SoC family.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-mips@linux-mips.org
Cc: linux-watchdog@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2327/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add etop board support
John Crispin [Thu, 5 May 2011 22:10:02 +0000]
MIPS: Lantiq: Add etop board support

Register the etop platform device inside the machtype specific init code.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2356/
Patchwork: https://patchwork.linux-mips.org/patch/2370/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add ethernet driver
John Crispin [Thu, 5 May 2011 22:10:01 +0000]
MIPS: Lantiq: Add ethernet driver

This patch adds the driver for the ETOP Packet Processing Engine (PPE32)
found inside the XWAY family of Lantiq MIPS SoCs. This driver makes 100MBit
ethernet work. Support for all 8 dma channels, gbit and the embedded switch
found on the ar9/vr9 still needs to be implemented.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Cc: netdev@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2357/
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add DMA support
John Crispin [Thu, 5 May 2011 22:10:00 +0000]
MIPS: Lantiq: Add DMA support

This patch adds support for the DMA engine found inside the XWAY family of
SoCs. The engine has 5 ports and 20 channels.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2355/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoSERIAL: Lantiq: Add driver for MIPS Lantiq SOCs.
John Crispin [Tue, 5 Apr 2011 12:10:57 +0000]
SERIAL: Lantiq: Add driver for MIPS Lantiq SOCs.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: alan@lxorguk.ukuu.org.uk
Cc: linux-mips@linux-mips.org
Cc: linux-serial@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2269/
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add more gpio drivers
John Crispin [Wed, 30 Mar 2011 07:27:56 +0000]
MIPS: Lantiq: Add more gpio drivers

The XWAY family allows to extend the number of gpios by using shift
registers or latches. This patch adds the 2 drivers needed for this. The
extended gpios are output only.

[ralf@linux-mips.org: Fixed ltq_stp_probe section() attributes.]

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2258/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add machtypes for lantiq eval kits
John Crispin [Wed, 30 Mar 2011 07:27:55 +0000]
MIPS: Lantiq: Add machtypes for lantiq eval kits

This patch adds mach specific code for the Lantiq EASY50712/50601 evaluation
boards

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2255/
Patchwork: https://patchwork.linux-mips.org/patch/2361/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add mips_machine support
John Crispin [Wed, 30 Mar 2011 07:27:54 +0000]
MIPS: Lantiq: Add mips_machine support

This patch adds support for Gabor's mips_machine patch.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2251/
Patchwork: https://patchwork.linux-mips.org/patch/2358/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add platform device support
John Crispin [Wed, 30 Mar 2011 07:27:53 +0000]
MIPS: Lantiq: Add platform device support

This patch adds the wrappers for registering our platform devices.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2254/
Patchwork: https://patchwork.linux-mips.org/patch/2360/
Patchwork: https://patchwork.linux-mips.org/patch/2359/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add NOR flash support
John Crispin [Tue, 12 Apr 2011 16:10:01 +0000]
MIPS: Lantiq: Add NOR flash support

This patch adds the driver/map for NOR devices attached to the SoC via the
External Bus Unit (EBU).

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-mtd@lists.infradead.org
Acked-by: Artem Bityutskiy <dedekind1@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/2285/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add PCI controller support.
John Crispin [Wed, 30 Mar 2011 07:27:49 +0000]
MIPS: Lantiq: Add PCI controller support.

The Lantiq family of SoCs have a EBU (External Bus Unit). This patch adds
the driver that allows us to use the EBU as a PCI controller. In order for
PCI to work the EBU is set to endianess swap all the data. In addition we
need to make use of SWAP_IO_SPACE for device->host DMA to work.

The clock of the PCI works in several modes (internal/external). If this
is not configured correctly the SoC will hang.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2250/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: add SoC specific code for XWAY family
John Crispin [Wed, 30 Mar 2011 07:27:48 +0000]
MIPS: Lantiq: add SoC specific code for XWAY family

Add support for the Lantiq XWAY family of Mips24KEc SoCs.

* Danube (PSB50702)
* Twinpass (PSB4000)
* AR9 (PSB50802)
* Amazon SE (PSB5061)

The Amazon SE is a lightweight SoC and has no PCI as well as a different
clock. We split the code out into seperate files to handle this.

The GPIO pins on the SoCs are multi function and there are several bits
we can use to configure the pins. To be as compatible as possible to
GPIOLIB we add a function

int lq_gpio_request(unsigned int pin, unsigned int alt0,
        unsigned int alt1, unsigned int dir, const char *name);

which lets you configure the 2 "alternate function" bits. This way drivers like
PCI can make use of GPIOLIB without a cubersome wrapper.

The PLL code inside arch/mips/lantiq/xway/clk-xway.c is voodoo to me. It was
taken from a 2.4.20 source tree and was never really changed by me since then.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2249/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Lantiq: Add initial support for Lantiq SoCs
John Crispin [Wed, 30 Mar 2011 07:27:47 +0000]
MIPS: Lantiq: Add initial support for Lantiq SoCs

Add initial support for Mips based SoCs made by Lantiq. This series will add
support for the XWAY family.

The series allows booting a minimal system using a initramfs or NOR. Missing
drivers and support for Amazon and GPON family will be provided in a later
series.

[Ralf: Remove some cargo cult programming and fixed formatting.]

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2252/
Patchwork: https://patchwork.linux-mips.org/patch/2371/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Enable kmemleak for MIPS
Maxin John [Mon, 28 Mar 2011 21:15:55 +0000]
MIPS: Enable kmemleak for MIPS

Signed-off-by: Maxin B. John <maxin.john@gmail.com>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Daniel Baluta <dbaluta@ixiacom.com>
Cc: naveen yadav <yad.naveen@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Patchwork: https://patchwork.linux-mips.org/patch/2244/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: XLR, XLS: Add PCI support.
Jayachandran C [Fri, 6 May 2011 20:07:31 +0000]
MIPS: XLR, XLS: Add PCI support.

Adds pci/pci-xlr.c to support for XLR PCI/PCI-X interface and XLS PCIe
interface.
Update irq.c to ack PCI interrupts, use irq handler data to do the
PCI/PCIe bus ack.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2337/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Add default configuration for XLR/XLS processors
Jayachandran C [Fri, 6 May 2011 20:07:14 +0000]
MIPS: Add default configuration for XLR/XLS processors

Enable XLR CPU support, SMP, initramfs based root filesystem etc.

[ralf@linux-mips.org: shrink the defconfig file through make savedefconfig.]

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2338/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Kconfig and Makefile update for Netlogic XLR/XLS
Jayachandran C [Fri, 6 May 2011 20:06:57 +0000]
MIPS: Kconfig and Makefile update for Netlogic XLR/XLS

Add NLM_XLR_BOARD, CPU_XLR and other config options
Makefile updates, mostly based on r4k

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2334/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Platform files for XLR/XLS processor support
Jayachandran C [Fri, 6 May 2011 20:06:40 +0000]
MIPS: Platform files for XLR/XLS processor support

* include/asm/netlogic added with files common for all Netlogic processors
  (common with XLP which will be added later)
* include/asm/netlogic/xlr for XLR/XLS chip specific files
* netlogic/xlr for XLR/XLS platform files

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2334/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Netlogic: Cache, TLB support and feature overrides for XLR
Jayachandran C [Fri, 6 May 2011 20:06:21 +0000]
MIPS: Netlogic: Cache, TLB support and feature overrides for XLR

CPU_XLR case added to mm/tlbex.c
CPU_XLR case added to mm/c-r4k.c for PINDEX attribute
Feature overrides for XLR cpu.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2333/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Netlogic: mach-netlogic include files
Jayachandran C [Fri, 6 May 2011 20:06:05 +0000]
MIPS: Netlogic: mach-netlogic include files

Add war.h and irq.h with XLR/XLS definitions.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2331/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoMIPS: Netlogic XLR/XLS processor IDs.
Jayachandran C [Wed, 11 May 2011 06:34:58 +0000]
MIPS: Netlogic XLR/XLS processor IDs.

Add Netlogic Microsystems company ID and processor IDs for XLR
and XLS processors for CPU probe. Add CPU_XLR to cpu_type_enum.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2367/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 years agoparams.c: Use new strtobool function to process boolean inputs
Jonathan Cameron [Tue, 19 Apr 2011 11:43:47 +0000]
params.c: Use new strtobool function to process boolean inputs

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agodebugfs: move to new strtobool
Jonathan Cameron [Tue, 19 Apr 2011 11:43:46 +0000]
debugfs: move to new strtobool

No functional changes requires that we eat errors from strtobool.
If people want to not do this, then it should be fixed at a later date.

V2: Simplification suggested by Rusty Russell removes the need for
additional variable ret.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agoAdd a strtobool function matching semantics of existing in kernel equivalents
Jonathan Cameron [Tue, 19 Apr 2011 11:43:45 +0000]
Add a strtobool function matching semantics of existing in kernel equivalents

This is a rename of the usr_strtobool proposal, which was a renamed,
relocated and fixed version of previous kstrtobool RFC

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodpost: Update 64k section support for binutils 2.18.50
Anders Kaseorg [Thu, 19 May 2011 22:55:27 +0000]
modpost: Update 64k section support for binutils 2.18.50

Binutils 2.18.50 made a backwards-incompatible change in the way it
writes ELF objects with over 65280 sections, to improve conformance
with the ELF specification and interoperability with other ELF tools.
Specifically, it no longer adds 256 to section indices SHN_LORESERVE
and higher to skip over the reserved range SHN_LORESERVE through
SHN_HIRESERVE; those values are only considered special in the
st_shndx field, and not in other places where section indices are
stored.  See:

http://sourceware.org/bugzilla/show_bug.cgi?id=5900
http://groups.google.com/group/generic-abi/browse_thread/thread/e8bb63714b072e67/6c63738f12cc8a17

Signed-off-by: Anders Kaseorg <andersk@ksplice.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: Use binary search in lookup_symbol()
Alessio Igor Bogani [Wed, 18 May 2011 20:35:59 +0000]
module: Use binary search in lookup_symbol()

The function is_exported() with its helper function lookup_symbol() are used to
verify if a provided symbol is effectively exported by the kernel or by the
modules. Now that both have their symbols sorted we can replace a linear search
with a binary search which provide a considerably speed-up.

This work was supported by a hardware donation from the CE Linux Forum.

Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: Use the binary search for symbols resolution
Alessio Igor Bogani [Wed, 20 Apr 2011 09:10:52 +0000]
module: Use the binary search for symbols resolution

Takes advantage of the order and locates symbols using binary search.

This work was supported by a hardware donation from the CE Linux Forum.

Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Tested-by: Dirk Behme <dirk.behme@googlemail.com>

8 years agolib: Add generic binary search function to the kernel.
Tim Abbott [Thu, 14 Apr 2011 18:00:19 +0000]
lib: Add generic binary search function to the kernel.

There a large number hand-coded binary searches in the kernel (run
"git grep search | grep binary" to find many of them).  Since in my
experience, hand-coding binary searches can be error-prone, it seems
worth cleaning this up by providing a generic binary search function.

This generic binary search implementation comes from Ksplice.  It has
the same basic API as the C library bsearch() function.  Ksplice uses
it in half a dozen places with 4 different comparison functions, and I
think our code is substantially cleaner because of this.

Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Extra-bikeshedding-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Extra-bikeshedding-by: AndrĂ© Goddard Rosa <andre.goddard@gmail.com>
Extra-bikeshedding-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: Sort exported symbols
Alessio Igor Bogani [Thu, 14 Apr 2011 12:59:39 +0000]
module: Sort exported symbols

This patch places every exported symbol in its own section
(i.e. "___ksymtab+printk").  Thus the linker will use its SORT() directive
to sort and finally merge all symbol in the right and final section
(i.e. "__ksymtab").

The symbol prefixed archs use an underscore as prefix for symbols.
To avoid collision we use a different character to create the temporary
section names.

This work was supported by a hardware donation from the CE Linux Forum.

Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (folded in '+' fixup)
Tested-by: Dirk Behme <dirk.behme@googlemail.com>

8 years agomodule: each_symbol_section instead of each_symbol
Rusty Russell [Tue, 19 Apr 2011 19:49:58 +0000]
module: each_symbol_section instead of each_symbol

Instead of having a callback function for each symbol in the kernel,
have a callback for each array of symbols.

This eases the logic when we move to sorted symbols and binary search.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>

8 years agomodule: split unset_section_ro_nx function.
Jan Glauber [Thu, 19 May 2011 22:55:26 +0000]
module: split unset_section_ro_nx function.

Split the unprotect function into a function per section to make
the code more readable and add the missing static declaration.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: undo module RONX protection correctly.
Jan Glauber [Thu, 19 May 2011 22:55:26 +0000]
module: undo module RONX protection correctly.

While debugging I stumbled over two problems in the code that protects module
pages.

First issue is that disabling the protection before freeing init or unload of
a module is not symmetric with the enablement. For instance, if pages are set
to RO the page range from module_core to module_core + core_ro_size is
protected. If a module is unloaded the page range from module_core to
module_core + core_size is set back to RW.
So pages that were not set to RO are also changed to RW.
This is not critical but IMHO it should be symmetric.

Second issue is that while set_memory_rw & set_memory_ro are used for
RO/RW changes only set_memory_nx is involved for NX/X. One would await that
the inverse function is called when the NX protection should be removed,
which is not the case here, unless I'm missing something.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: zero mod->init_ro_size after init is freed.
Jan Glauber [Thu, 19 May 2011 22:55:25 +0000]
module: zero mod->init_ro_size after init is freed.

Reset mod->init_ro_size to zero after the init part of a module is unloaded.
Otherwise we need to check if module->init is NULL in the unprotect functions
in the next patch.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agominor ANSI prototype sparse fix
Daniel J Blueman [Tue, 8 Mar 2011 14:01:47 +0000]
minor ANSI prototype sparse fix

Fix function prototype to be ANSI-C compliant, consistent with other
function prototypes, addressing a sparse warning.

Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: reorder kparam_array to remove alignment padding on 64 bit builds
Richard Kennedy [Thu, 19 May 2011 22:55:25 +0000]
module: reorder kparam_array to remove alignment padding on 64 bit builds

Reorder structure kparam_array to remove 8 bytes of alignment padding on
64 bit builds, dropping its size from 40 to 32 bytes.

Also update the macro module_param_array_named to initialise the
structure using its member names to allow it to be changed without
touching all its call sites.

'git grep' finds module_param_array in 1037 places so this patch will
save a small amount of data space across many modules.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: remove 64 bit alignment padding from struct module with CONFIG_TRACE*
Richard Kennedy [Thu, 19 May 2011 22:55:25 +0000]
module: remove 64 bit alignment padding from struct module with CONFIG_TRACE*

Reorder struct module to remove 24 bytes of alignment padding on 64 bit
builds when the CONFIG_TRACE options are selected. This allows the
structure to fit into one fewer cache lines, and its size drops from 592
to 568 on x86_64.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: do not hide __modver_version_show declaration behind ifdef
Dmitry Torokhov [Tue, 8 Feb 2011 00:02:27 +0000]
module: do not hide __modver_version_show declaration behind ifdef

Doing so prevents the following warning from sparse:

  CHECK   kernel/params.c
kernel/params.c:817:9: warning: symbol '__modver_version_show' was not
declared. Should it be static?

since kernel/params.c is never compiled with MODULE being set.

Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

8 years agomodule: deal with alignment issues in built-in module versions
Dmitry Torokhov [Tue, 8 Feb 2011 00:02:25 +0000]
module: deal with alignment issues in built-in module versions

On m68k natural alignment is 2-byte boundary but we are trying to
align structures in __modver section on sizeof(void *) boundary.
This causes trouble when we try to access elements in this section
in array-like fashion when create "version" attributes for built-in
modules.

Moreover, as DaveM said, we can't reliably put structures into
independent objects, put them into a special section, and then expect
array access over them (via the section boundaries) after linking the
objects together to just "work" due to variable alignment choices in
different situations. The only solution that seems to work reliably
is to make an array of plain pointers to the objects in question and
put those pointers in the special section.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>