m68k: 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>
diff --git a/include/asm-m68k/bitops.h b/include/asm-m68k/bitops.h
index 3e81064..9bde784 100644
--- a/include/asm-m68k/bitops.h
+++ b/include/asm-m68k/bitops.h
@@ -315,6 +315,11 @@
return 32 - cnt;
}
+static inline int __fls(int x)
+{
+ return fls(x) - 1;
+}
+
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/hweight.h>