aboutsummaryrefslogtreecommitdiff
path: root/include/asm-generic/bitops/builtin-ffs.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-generic/bitops/builtin-ffs.h')
-rw-r--r--include/asm-generic/bitops/builtin-ffs.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/asm-generic/bitops/builtin-ffs.h b/include/asm-generic/bitops/builtin-ffs.h
new file mode 100644
index 00000000000..064825829e1
--- /dev/null
+++ b/include/asm-generic/bitops/builtin-ffs.h
@@ -0,0 +1,17 @@
+#ifndef _ASM_GENERIC_BITOPS_BUILTIN_FFS_H_
+#define _ASM_GENERIC_BITOPS_BUILTIN_FFS_H_
+
+/**
+ * ffs - find first bit set
+ * @x: the word to search
+ *
+ * This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ */
+static __always_inline int ffs(int x)
+{
+ return __builtin_ffs(x);
+}
+
+#endif