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| author | Vivek Goyal <vgoyal@redhat.com> | 2014-03-18 23:26:36 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-03-20 02:43:37 +0400 |
| commit | aad830938ed8ba175d8060751654f78d4115ea0a (patch) | |
| tree | d339dd0575a9a2f0a3283727a7ce102aabf30b4c /arch/x86/boot/compressed/string.c | |
| parent | dcb99fd9b08cfe1afe426af4d8d3cbc429190f15 (diff) | |
| download | linux-aad830938ed8ba175d8060751654f78d4115ea0a.tar.xz | |
x86, boot: Undef memcmp before providing a new definition
With CONFIG_X86_32=y, string_32.h gets pulled in compressed/string.c by
"misch.h". string_32.h defines a macro to map memcmp to __builtin_memcmp().
And that macro in turn changes the name of memcmp() defined here and
converts it to __builtin_memcmp().
I thought that's not the intention though. We probably want to provide
our own optimized definition of memcmp(). If yes, then undef the memcmp
before we define a new memcmp.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Link: http://lkml.kernel.org/r/1395170800-11059-2-git-send-email-vgoyal@redhat.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/boot/compressed/string.c')
| -rw-r--r-- | arch/x86/boot/compressed/string.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/string.c b/arch/x86/boot/compressed/string.c index ffb9c5c9d748..212004ec787d 100644 --- a/arch/x86/boot/compressed/string.c +++ b/arch/x86/boot/compressed/string.c @@ -1,5 +1,7 @@ #include "misc.h" +/* Avoid intereference from any defines in string_32.h */ +#undef memcmp int memcmp(const void *s1, const void *s2, size_t len) { u8 diff; |