assign_bit() is a useful shortcut to if (foo) set_bit(); else clear_bit();
Signed-off-by: Sascha Hauer <[email protected]>
---
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
