avr32: define __fls

Like fls, but can't be handed 0 and returns the bit number. (I broke this arch in linux-next by using __fls in generic code). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

avr32: define __fls
Like fls, but can't be handed 0 and returns the bit number. (I broke this arch in linux-next by using __fls in generic code). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell
1 parent 165ac433fa
Showing 1 changed file with 5 additions and 0 deletions Side-by-side Diff
arch/avr32/include/asm/bitops.h
@@ -263,6 +263,11 @@
 	return 32 - result;
 }
  
+static inline int __fls(unsigned long word)
+{
+	return fls(word) - 1;
+}
+
 unsigned long find_first_zero_bit(const unsigned long *addr,
 				  unsigned long size);
 unsigned long find_next_zero_bit(const unsigned long *addr,
...	...	@@ -263,6 +263,11 @@
263	263	return 32 - result;
264	264	}
265	265
	266	+static inline int __fls(unsigned long word)
	267	+{
	268	+ return fls(word) - 1;
	269	+}
	270	+
266	271	unsigned long find_first_zero_bit(const unsigned long *addr,
267	272	unsigned long size);
268	273	unsigned long find_next_zero_bit(const unsigned long *addr,