Introduce BITS_TO_U64, BITS_TO_U32 and BITS_TO_BYTES as they are handy in the following changes (BITS_TO_U32 specifically). Sync tools/ version of the macros with the kernel implementation.
Signed-off-by: Yury Norov <[email protected]> --- include/linux/bitops.h | 3 +++ tools/include/linux/bitops.h | 9 +++++---- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/include/linux/bitops.h b/include/linux/bitops.h index cf074bce3eb3..3477e179dca7 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -6,6 +6,9 @@ #define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE) #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(long)) +#define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(u64)) +#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(u32)) +#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(char)) extern unsigned int __sw_hweight8(unsigned int w); extern unsigned int __sw_hweight16(unsigned int w); diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h index 0b0ef3abc966..959dcb8214ba 100644 --- a/tools/include/linux/bitops.h +++ b/tools/include/linux/bitops.h @@ -13,10 +13,11 @@ #include <linux/bits.h> #include <linux/compiler.h> -#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long)) -#define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64)) -#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32)) -#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE) +#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE) +#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(long)) +#define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(u64)) +#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(u32)) +#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(char)) extern unsigned int __sw_hweight8(unsigned int w); extern unsigned int __sw_hweight16(unsigned int w); -- 2.17.1
