linux/arch/arm/lib, branch v3.2

ARM: 7171/1: unwind: add unwind directives to bitops assembly macros

2011-11-26T21:58:53Z

The bitops functions (e.g. _test_and_set_bit) on ARM do not have unwind annotations and therefore the kernel cannot backtrace out of them on a fatal error (for example, NULL pointer dereference). This patch annotates the bitops assembly macros with UNWIND annotations so that we can produce a meaningful backtrace on error. Callers of the macros are modified to pass their function name as a macro parameter, enforcing that the macros are used as standalone function implementations. Acked-by: Dave Martin Signed-off-by: Will Deacon Signed-off-by: Russell King

Merge branch 'misc' into for-linus

2011-10-25T07:19:59Z

Conflicts: arch/arm/mach-integrator/integrator_ap.c

ARM: 7125/1: Add unwinding annotations for 64bit division functions

2011-10-17T08:13:42Z

The 64bit division functions never had unwinding annotations added. This prevents a backtrace from being printed within the function and if a division by 0 occurs. Add the annotations. Signed-off-by: Laura Abbott Acked-by: Nicolas Pitre Acked-by: Catalin Marinas Signed-off-by: Russell King

ARM: 7068/1: process: change from __backtrace to dump_stack in show_regs

2011-10-17T08:12:41Z

Currently, show_regs calls __backtrace which does nothing if CONFIG_FRAME_POINTER is not set. Switch to dump_stack which handles both CONFIG_FRAME_POINTER and CONFIG_ARM_UNWIND correctly. __backtrace is now superseded by dump_stack in general and show_regs was the last caller so remove __backtrace as well. Signed-off-by: Laura Abbott Acked-by: Nicolas Pitre Signed-off-by: Russell King

ARM: include linux/highmem.h in uaccess functions

2011-10-02T13:44:32Z

When highpte support is enabled, this is required to build the kernel. Signed-off-by: Arnd Bergmann

arm: remove "optimized" SHA1 routines

2011-08-07T21:07:03Z

Since commit 1eb19a12bd22 ("lib/sha1: use the git implementation of SHA-1"), the ARM SHA1 routines no longer work. The reason? They depended on the larger 320-byte workspace, and now the sha1 workspace is just 16 words (64 bytes). So the assembly version would overwrite the stack randomly. The optimized asm version is also probably slower than the new improved C version, so there's no reason to keep it around. At least that was the case in git, where what appears to be the same assembly language version was removed two years ago because the optimized C BLK_SHA1 code was faster. Reported-and-tested-by: Joachim Eastwood Cc: Andreas Schwab Cc: Nicolas Pitre Signed-off-by: Linus Torvalds

ARM: remove unnecessary mach/hardware.h includes

2011-07-12T16:19:27Z

Remove some includes of mach/hardware.h which are not needed. hardware.h will be removed completely for tegra and cns3xxx in follow on patch. Signed-off-by: Rob Herring Acked-by: Nicolas Pitre Reviewed-by: Arnd Bergmann

ARM: 6945/1: Add unwinding support for division functions

2011-05-27T21:56:53Z

The software division functions never had unwinding annotations added. Currently, when a division by zero occurs the backtrace shown will stop at Ldiv0 or some completely unrelated function. Add unwinding annotations in hopes of getting a more useful backtrace when a division by zero occurs. Signed-off-by: Laura Abbott Acked-by: Dave Martin Signed-off-by: Russell King

Merge branches 'fixes', 'pgt-next' and 'versatile' into devel

2011-03-20T09:32:12Z

ARM: pgtable: add pud-level code

2011-02-21T19:24:14Z

Add pud_offset() et.al. between the pgd and pmd code in preparation of using pgtable-nopud.h rather than 4level-fixup.h. This incorporates a fix from Jamie Iles for uaccess_with_memcpy.c. Signed-off-by: Russell King