From: Sascha Hauer <s.hauer@pengutronix.de> To: Barebox List <barebox@lists.infradead.org> Subject: [PATCH 3/4] bitops: implement assign_bit() Date: Mon, 7 Nov 2022 15:45:23 +0100 [thread overview] Message-ID: <20221107144524.489471-4-s.hauer@pengutronix.de> (raw) In-Reply-To: <20221107144524.489471-1-s.hauer@pengutronix.de> assign_bit() is a useful shortcut to if (foo) set_bit(); else clear_bit(); Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- include/linux/bitops.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) 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 -- 2.30.2
next prev parent reply other threads:[~2022-11-07 15:01 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-11-07 14:45 [PATCH 0/4] gpio: Add gpio latch driver Sascha Hauer 2022-11-07 14:45 ` [PATCH 1/4] bitmap: Implement bitmap_*zalloc() Sascha Hauer 2022-11-07 14:45 ` [PATCH 2/4] bitops: include linux/types.h Sascha Hauer 2022-11-07 14:45 ` Sascha Hauer [this message] 2022-11-07 14:45 ` [PATCH 4/4] gpio: Add gpio latch driver Sascha Hauer
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