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| author | H. Peter Anvin <hpa@linux.intel.com> | 2010-06-10 02:10:43 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-07-07 19:36:28 +0200 |
| commit | 83a7a2ad2a9173dcabc05df0f01d1d85b7ba1c2c (patch) | |
| tree | 06dfa61fa406d35694d9dfc1c9c4153ead231b78 /arch/x86/lib/memcpy_64.S | |
| parent | VFS: introduce s_dirty accessors (diff) | |
| download | linux-83a7a2ad2a9173dcabc05df0f01d1d85b7ba1c2c.tar.xz linux-83a7a2ad2a9173dcabc05df0f01d1d85b7ba1c2c.zip | |
x86, alternatives: Use 16-bit numbers for cpufeature index
We already have cpufeature indicies above 255, so use a 16-bit number
for the alternatives index. This consumes a padding field and so
doesn't add any size, but it means that abusing the padding field to
create assembly errors on overflow no longer works. We can retain the
test simply by redirecting it to the .discard section, however.
[ v3: updated to include open-coded locations ]
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
LKML-Reference: <tip-f88731e3068f9d1392ba71cc9f50f035d26a0d4f@git.kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/lib/memcpy_64.S')
| -rw-r--r-- | arch/x86/lib/memcpy_64.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S index f82e884928af..bcbcd1e0f7d5 100644 --- a/arch/x86/lib/memcpy_64.S +++ b/arch/x86/lib/memcpy_64.S @@ -131,7 +131,7 @@ ENDPROC(__memcpy) .align 8 .quad memcpy .quad .Lmemcpy_c - .byte X86_FEATURE_REP_GOOD + .word X86_FEATURE_REP_GOOD /* * Replace only beginning, memcpy is used to apply alternatives, |