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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2010-09-29 18:08:50 +0900 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-09 21:51:44 +0200 |
| commit | 708ff2a0097b02d32d375b66996661f36cd4d6d1 (patch) | |
| tree | 66f7922a1e35de1ad15ba84849bd6fc602c26087 /arch/x86/include/asm/bitops.h | |
| parent | c24cef0b68a719324c344c1563ef3d750ac6bf0e (diff) | |
| download | lwn-708ff2a0097b02d32d375b66996661f36cd4d6d1.tar.gz lwn-708ff2a0097b02d32d375b66996661f36cd4d6d1.zip | |
bitops: make asm-generic/bitops/find.h more generic
asm-generic/bitops/find.h has the extern declarations of find_next_bit()
and find_next_zero_bit() and the macro definitions of find_first_bit()
and find_first_zero_bit(). It is only usable by the architectures which
enables CONFIG_GENERIC_FIND_NEXT_BIT and disables
CONFIG_GENERIC_FIND_FIRST_BIT.
x86 and tile enable both CONFIG_GENERIC_FIND_NEXT_BIT and
CONFIG_GENERIC_FIND_FIRST_BIT. These architectures cannot include
asm-generic/bitops/find.h in their asm/bitops.h. So ifdefed extern
declarations of find_first_bit and find_first_zero_bit() are put in
linux/bitops.h.
This makes asm-generic/bitops/find.h usable by these architectures
and use it. Also this change is needed for the forthcoming duplicated
extern declarations cleanup.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/x86/include/asm/bitops.h')
| -rw-r--r-- | arch/x86/include/asm/bitops.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index bafd80defa43..903683b07e42 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -440,6 +440,8 @@ static inline int fls(int x) #ifdef __KERNEL__ +#include <asm-generic/bitops/find.h> + #include <asm-generic/bitops/sched.h> #define ARCH_HAS_FAST_MULTIPLIER 1 |