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Groups > linux.kernel > #1272751
| From | Jia He <hejianet@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/3] linux/bitmap: Move 2 mask macro to bitops.h |
| Date | 2015-11-19 03:40 +0100 |
| Message-ID | <qwniF-3dU-5@gated-at.bofh.it> (permalink) |
| References | <qwniF-3dU-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
This patch moves the mask macro to bitops.h and then the new introduced api in find_bit.c can use it. Signed-off-by: Jia He <hejianet@gmail.com> --- include/linux/bitmap.h | 3 --- include/linux/bitops.h | 4 ++++ 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 9653fdb..15524f6 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -172,9 +172,6 @@ extern unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int extern int bitmap_print_to_pagebuf(bool list, char *buf, const unsigned long *maskp, int nmaskbits); -#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) -#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) - #define small_const_nbits(nbits) \ (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG) diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 2b8ed12..b881028 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -24,6 +24,10 @@ #define GENMASK_ULL(h, l) \ (((~0ULL) << (l)) & (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h)))) +/* For bitmap ops*/ +#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) +#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) + extern unsigned int __sw_hweight8(unsigned int w); extern unsigned int __sw_hweight16(unsigned int w); extern unsigned int __sw_hweight32(unsigned int w); -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH 1/3] linux/bitmap: Move 2 mask macro to bitops.h Jia He <hejianet@gmail.com> - 2015-11-19 03:40 +0100 Re: [PATCH 1/3] linux/bitmap: Move 2 mask macro to bitops.h Andy Shevchenko <andy.shevchenko@gmail.com> - 2015-11-22 20:20 +0100
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