diff options
| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-27 18:54:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-27 18:54:13 +0100 |
| commit | 8f677bc819e7a74cf10e30daf06e8b151d1e6a94 (patch) | |
| tree | 379e4e32a06dfb6d2ca3519ca4ef6b7507fad197 /include/linux/bitops.h | |
| parent | docs: driver-model: Add documentation for sync_state (diff) | |
| parent | Linux 5.4-rc5 (diff) | |
| download | wireguard-linux-8f677bc819e7a74cf10e30daf06e8b151d1e6a94.tar.xz wireguard-linux-8f677bc819e7a74cf10e30daf06e8b151d1e6a94.zip | |
Merge 5.4-rc5 into driver-core-next
We want the sysfs fix in here as well to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/bitops.h')
| -rw-r--r-- | include/linux/bitops.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index cf074bce3eb3..c94a9ff9f082 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -4,6 +4,13 @@ #include <asm/types.h> #include <linux/bits.h> +/* Set bits in the first 'n' bytes when loaded from memory */ +#ifdef __LITTLE_ENDIAN +# define aligned_byte_mask(n) ((1UL << 8*(n))-1) +#else +# define aligned_byte_mask(n) (~0xffUL << (BITS_PER_LONG - 8 - 8*(n))) +#endif + #define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE) #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(long)) |