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| author | Richard Purdie <rpurdie@rpsys.net> | 2006-02-01 19:26:00 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-02-01 19:26:00 (GMT) |
| commit | 62500d1f8eadff078cca462dc4df035a29180383 (patch) | |
| tree | 774ad280d77841292b0fb7bd1fe6f99251aa38c2 /include/asm-arm/checksum.h | |
| parent | afe5df208e6ecd09b7d1acf36eb2cf945842bee5 (diff) | |
| download | linux-fsl-qoriq-62500d1f8eadff078cca462dc4df035a29180383.tar.xz | |
[ARM] 3292/1: Fix memory corruption in asm-arm/checksum.h: ip_fast_csum()
Patch from Richard Purdie
ip_fast_csum() accesses memory via a pointer (iph) within an
asm function. To prevent memory corruption when the function is
inlined, it needs "memory" on the clobber list.
This fixes ip checksum errors reported by a Zaurus user.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/checksum.h')
| -rw-r--r-- | include/asm-arm/checksum.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-arm/checksum.h b/include/asm-arm/checksum.h index d4256d5..747bdd3 100644 --- a/include/asm-arm/checksum.h +++ b/include/asm-arm/checksum.h @@ -77,7 +77,7 @@ ip_fast_csum(unsigned char * iph, unsigned int ihl) mov %0, %0, lsr #16" : "=r" (sum), "=r" (iph), "=r" (ihl), "=r" (tmp1) : "1" (iph), "2" (ihl) - : "cc"); + : "cc", "memory"); return sum; } |