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| author | Yury Norov <yury.norov@gmail.com> | 2021-05-07 03:03:03 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-07 04:24:12 +0200 |
| commit | 5c88af59f9abc202648a431428ad9d32e5d2a201 (patch) | |
| tree | 058f24117190c2efe86bdc4bdde8dbac46e8cf93 /lib | |
| parent | tools: sync small_const_nbits() macro with the kernel (diff) | |
| download | linux-5c88af59f9abc202648a431428ad9d32e5d2a201.tar.xz linux-5c88af59f9abc202648a431428ad9d32e5d2a201.zip | |
lib: inline _find_next_bit() wrappers
lib/find_bit.c declares five single-line wrappers for _find_next_bit().
We may turn those wrappers to inline functions. It eliminates unneeded
function calls and opens room for compile-time optimizations.
Link: https://lkml.kernel.org/r/20210401003153.97325-8-yury.norov@gmail.com
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Alexey Klimov <aklimov@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Sterba <dsterba@suse.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jianpeng Ma <jianpeng.ma@intel.com>
Cc: Joe Perches <joe@perches.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Rich Felker <dalias@libc.org>
Cc: Stefano Brivio <sbrivio@redhat.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Yoshinori Sato <ysato@users.osdn.me>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/find_bit.c | 56 |
1 files changed, 2 insertions, 54 deletions
diff --git a/lib/find_bit.c b/lib/find_bit.c index f67f86fd2f62..b03a101367f8 100644 --- a/lib/find_bit.c +++ b/lib/find_bit.c @@ -29,7 +29,7 @@ * searching it for one bits. * - The optional "addr2", which is anded with "addr1" if present. */ -static unsigned long _find_next_bit(const unsigned long *addr1, +unsigned long _find_next_bit(const unsigned long *addr1, const unsigned long *addr2, unsigned long nbits, unsigned long start, unsigned long invert, unsigned long le) { @@ -68,37 +68,7 @@ static unsigned long _find_next_bit(const unsigned long *addr1, return min(start + __ffs(tmp), nbits); } -#endif - -#ifndef find_next_bit -/* - * Find the next set bit in a memory region. - */ -unsigned long find_next_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, 0UL, 0); -} -EXPORT_SYMBOL(find_next_bit); -#endif - -#ifndef find_next_zero_bit -unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, ~0UL, 0); -} -EXPORT_SYMBOL(find_next_zero_bit); -#endif - -#if !defined(find_next_and_bit) -unsigned long find_next_and_bit(const unsigned long *addr1, - const unsigned long *addr2, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr1, addr2, size, offset, 0UL, 0); -} -EXPORT_SYMBOL(find_next_and_bit); +EXPORT_SYMBOL(_find_next_bit); #endif #ifndef find_first_bit @@ -157,28 +127,6 @@ unsigned long find_last_bit(const unsigned long *addr, unsigned long size) EXPORT_SYMBOL(find_last_bit); #endif -#ifdef __BIG_ENDIAN - -#ifndef find_next_zero_bit_le -unsigned long find_next_zero_bit_le(const void *addr, unsigned - long size, unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, ~0UL, 1); -} -EXPORT_SYMBOL(find_next_zero_bit_le); -#endif - -#ifndef find_next_bit_le -unsigned long find_next_bit_le(const void *addr, unsigned - long size, unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, 0UL, 1); -} -EXPORT_SYMBOL(find_next_bit_le); -#endif - -#endif /* __BIG_ENDIAN */ - unsigned long find_next_clump8(unsigned long *clump, const unsigned long *addr, unsigned long size, unsigned long offset) { |