diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2022-11-07 15:45:23 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2022-11-08 11:05:44 +0100 |
| commit | 2d11e1838be14b9f5ba409da0fd4b07a162cc03c (patch) | |
| tree | a47996814a426581183173fcec1901f17e21991d | |
| parent | 5c43e199cbfd08180a02706d284d6c5834e97594 (diff) | |
| download | barebox-2d11e1838be14b9f5ba409da0fd4b07a162cc03c.tar.gz barebox-2d11e1838be14b9f5ba409da0fd4b07a162cc03c.tar.xz | |
bitops: implement assign_bit()
assign_bit() is a useful shortcut to if (foo) set_bit(); else clear_bit();
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.barebox.org/20221107144524.489471-4-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | include/linux/bitops.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 84161e43a3..eb5ff37f2f 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -194,6 +194,20 @@ static inline unsigned long __ffs64(u64 word) return __ffs((unsigned long)word); } +/** + * assign_bit - Assign value to a bit in memory + * @nr: the bit to set + * @addr: the address to start counting from + * @value: the value to assign + */ +static inline void assign_bit(long nr, volatile unsigned long *addr, bool value) +{ + if (value) + set_bit(nr, addr); + else + clear_bit(nr, addr); +} + #ifdef __KERNEL__ #ifndef set_mask_bits |