hulk inclusion category: feature bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAQOJ9 CVE: NA ---------------------------------------- After mergerd commit "bitmap: introduce generic optimizedbitmap_size()", When compiling tools/perf, I encountered the following error. I reverted the changes that added bitmap_size() in tools/include/linux/bitmap.h. There are no functional changes. error: implicit declaration of function \ ‘__ALIGN_KERNEL’ [-Werror=implicit-function-declaration] #define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) Fixes: 9e8111c56a25 ("bitmap: introduce generic optimized bitmap_size()") Signed-off-by: Long Li <leo.lilong@huawei.com> --- tools/include/linux/bitmap.h | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h index 3aeeb60f1988..e63662db131b 100644 --- a/tools/include/linux/bitmap.h +++ b/tools/include/linux/bitmap.h @@ -27,14 +27,13 @@ int __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, #define small_const_nbits(nbits) \ (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG) -#define bitmap_size(nbits) (ALIGN(nbits, BITS_PER_LONG) / BITS_PER_BYTE) - static inline void bitmap_zero(unsigned long *dst, int nbits) { if (small_const_nbits(nbits)) *dst = 0UL; else { - memset(dst, 0, bitmap_size(nbits)); + int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); + memset(dst, 0, len); } } @@ -120,7 +119,7 @@ static inline int test_and_clear_bit(int nr, unsigned long *addr) */ static inline unsigned long *bitmap_alloc(int nbits) { - return calloc(1, bitmap_size(nbits)); + return calloc(1, BITS_TO_LONGS(nbits) * sizeof(unsigned long)); } /* -- 2.31.1