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| author | Yury Norov <yury.norov@gmail.com> | 2022-09-15 05:07:28 +0300 |
|---|---|---|
| committer | Yury Norov <yury.norov@gmail.com> | 2022-09-21 22:17:18 +0300 |
| commit | 14a99e130f2758bc826a7e7a8bdf6f7400b54f0f (patch) | |
| tree | 3b067dad53502e8e00c0fce608fe3b2587f2be91 /lib | |
| parent | 58414bbb58a8b49af20e3accae56f6f8344b2424 (diff) | |
| download | linux-14a99e130f2758bc826a7e7a8bdf6f7400b54f0f.tar.xz | |
lib/find_bit: create find_first_zero_bit_le()
find_first_zero_bit_le() is an alias to find_next_zero_bit_le(),
despite that 'next' is known to be slower than 'first' version.
Now that we have common FIND_FIRST_BIT() macro helper, it's trivial
to implement find_first_zero_bit_le() as a real function.
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/find_bit.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/find_bit.c b/lib/find_bit.c index 894b656f6836..61ec2992938b 100644 --- a/lib/find_bit.c +++ b/lib/find_bit.c @@ -160,3 +160,19 @@ unsigned long find_next_clump8(unsigned long *clump, const unsigned long *addr, return offset; } EXPORT_SYMBOL(find_next_clump8); + +#ifdef __BIG_ENDIAN + +#ifndef find_first_zero_bit_le +/* + * Find the first cleared bit in an LE memory region. + */ +unsigned long _find_first_zero_bit_le(const unsigned long *addr, unsigned long size) +{ + return FIND_FIRST_BIT(~addr[idx], swab, size); +} +EXPORT_SYMBOL(_find_first_zero_bit_le); + +#endif + +#endif /* __BIG_ENDIAN */ |