Serge Belyshev
4ecbca8554
Remove unnecessary cast in prefetch() ...
It is ok to call prefetch() function with NULL argument, as specifically
commented in include/linux/prefetch.h. But in standard C, it is invalid
to dereference NULL pointer (see C99 standard 6.5.3.2 paragraph 4 and
note #84 ).
prefetch() has a memory reference for its argument.
Newer gcc versions (4.3 and above) will use that to conclude that "x"
argument is non-null and thus wreaking havok everywhere prefetch() was
inlined.
Fixed by removing cast and changing asm constraint.
[ It seems in theory gcc 4.2 could miscompile this too; although no
cases known. In 2.6.24 we should probably switch to
__builtin_prefetch() instead, but this is a simpler fix for now.
-- AK ]
Signed-off-by: Serge Belyshev <belyshev@depni.sinp.msu.ru>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-05 08:04:35 -07:00
ACPI: CONFIG_ACPI_SLEEP=n power off regression in 2.6.23-rc8 (NOT in rc7)
2007-09-25 17:58:52 -04:00
Fix Alpha O_CLOEXEC definition
2007-08-09 08:39:22 -07:00
Merge branch 'omap-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
2007-08-25 12:38:47 +01:00
[AVR32] Define mmiowb()
2007-08-15 16:36:56 +02:00
Blackfin arch: fix PORT_J BUG for BF537/6 EMAC driver reported by Kalle Pokki <kalle.pokki@iki.fi>
2007-10-04 00:36:18 +08:00
remove unused TIF_NOTIFY_RESUME flag
2007-07-31 15:39:38 -07:00
FRV: connect up fallocate
2007-08-11 15:47:40 -07:00
Define termios_1 functions for powerpc, s390, avr32 and frv
2007-09-12 09:08:05 -07:00
Binfmt_flat: Add minimum support for the Blackfin relocations
2007-10-03 23:41:43 +08:00
i386: remove bogus comment about memory barrier
2007-09-29 09:13:59 -07:00
[IA64] Cleanup HPSIM code (was: Re: Enable early console for Ski simulator)
2007-09-01 02:52:25 -07:00
Binfmt_flat: Add minimum support for the Blackfin relocations
2007-10-03 23:41:43 +08:00
m68k(nommu): add missing syscalls
2007-09-11 17:21:20 -07:00
Binfmt_flat: Add minimum support for the Blackfin relocations
2007-10-03 23:41:43 +08:00
[MIPS] Terminally fix local_{dec,sub}_if_positive
2007-10-03 14:30:52 +01:00
[PARISC] Add dummy isa_(bus|virt)_to_(virt|bus) inlines
2007-08-27 00:29:22 -04:00
[POWERPC] Fix timekeeping on PowerPC 601
2007-09-19 15:26:34 +10:00
[WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support
2007-07-24 21:16:02 +00:00
[S390] Change atomic_read/set to inline functions with barrier semantics.
2007-08-22 13:51:49 +02:00
Binfmt_flat: Add minimum support for the Blackfin relocations
2007-10-03 23:41:43 +08:00
sh64: Add missing dma_sync_single_for_*().
2007-08-10 02:47:31 +09:00
[SPARC32]: Make flush_tlb_kernel_range() an inline function.
2007-08-26 18:49:12 -07:00
[SPARC64]: Fix lockdep, particularly on SMP.
2007-09-16 11:51:15 -07:00
UML: Fix ELF_CORE_COPY_REGS build botch
2007-09-10 18:58:05 -07:00
Binfmt_flat: Add minimum support for the Blackfin relocations
2007-10-03 23:41:43 +08:00
Remove unnecessary cast in prefetch()
2007-10-05 08:04:35 -07:00
[patch 1/2] Xtensa: enable arbitary tty speed setting ioctls
2007-08-27 13:54:25 -07:00
Revert "[PATCH] x86-64: fix x86_64-mm-sched-clock-share"
2007-09-26 15:52:17 -07:00
Fix <math-emu/soft-fp.h> tpyo
2007-08-18 17:15:17 -07:00
V4L/DVB (6220a): fix build error for et61x251 driver
2007-09-14 13:39:12 -03:00
UBI: kill homegrown endian macros
2007-07-18 16:53:49 +03:00
[TCP]: Fix MD5 signature handling on big-endian.
2007-09-28 15:18:35 -07:00
IB: Move the macro IB_UMEM_MAX_PAGE_CHUNK() to umem.c
2007-08-03 10:45:18 -07:00
[SCSI] libiscsi: sync up iscsi and scsi eh's access to the connection
2007-08-15 13:09:21 -05:00
[ALSA] version 1.0.14
2007-07-20 11:13:35 +02:00
remove tx3912fb
2007-07-31 15:39:41 -07:00
xen: xen/page.h compile fix
2007-07-26 11:35:16 -07:00
4ecbca8554