diff options
| author | Masahiro Yamada <[email protected]> | 2020-04-06 20:09:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-04-07 10:43:42 -0700 |
| commit | 12a5b00a5366467e95a25f55da751794e5fe6788 (patch) | |
| tree | 9e0646ec950b193148112c6cd0aa7bfbd7aa00d2 | |
| parent | 63174f61dfaef58dc0e813eaf6602636794f8942 (diff) | |
sparc,x86: vdso: remove meaningless undefining CONFIG_OPTIMIZE_INLINING
The code, #undef CONFIG_OPTIMIZE_INLINING, is not working as expected
because <linux/compiler_types.h> is parsed before vclock_gettime.c since
28128c61e08e ("kconfig.h: Include compiler types to avoid missed struct
attributes").
Since then, <linux/compiler_types.h> is included really early by using the
'-include' option. So, you cannot negate the decision of
<linux/compiler_types.h> in this way.
You can confirm it by checking the pre-processed code, like this:
$ make arch/x86/entry/vdso/vdso32/vclock_gettime.i
There is no difference with/without CONFIG_CC_OPTIMIZE_FOR_SIZE.
It is about two years since 28128c61e08e. Nobody has reported a problem
(or, nobody has even noticed the fact that this code is not working).
It is ugly and unreliable to attempt to undefine a CONFIG option from C
files, and anyway the inlining heuristic is up to the compiler.
Just remove the broken code.
Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Nathan Chancellor <[email protected]>
Acked-by: Miguel Ojeda <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: David Miller <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | arch/sparc/vdso/vdso32/vclock_gettime.c | 4 | ||||
| -rw-r--r-- | arch/x86/entry/vdso/vdso32/vclock_gettime.c | 4 |
2 files changed, 0 insertions, 8 deletions
diff --git a/arch/sparc/vdso/vdso32/vclock_gettime.c b/arch/sparc/vdso/vdso32/vclock_gettime.c index 026abb3b826c..d7f99e6745ea 100644 --- a/arch/sparc/vdso/vdso32/vclock_gettime.c +++ b/arch/sparc/vdso/vdso32/vclock_gettime.c @@ -4,10 +4,6 @@ #define BUILD_VDSO32 -#ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE -#undef CONFIG_OPTIMIZE_INLINING -#endif - #ifdef CONFIG_SPARC64 /* diff --git a/arch/x86/entry/vdso/vdso32/vclock_gettime.c b/arch/x86/entry/vdso/vdso32/vclock_gettime.c index 1e82bd43286c..84a4a73f77f7 100644 --- a/arch/x86/entry/vdso/vdso32/vclock_gettime.c +++ b/arch/x86/entry/vdso/vdso32/vclock_gettime.c @@ -1,10 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #define BUILD_VDSO32 -#ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE -#undef CONFIG_OPTIMIZE_INLINING -#endif - #ifdef CONFIG_X86_64 /* |