summaryrefslogtreecommitdiffstats
path: root/tools/testing/radix-tree/linux/bitops/ffs.h
diff options
context:
space:
mode:
authorTony Lindgren <tony@atomide.com>2017-03-06 08:37:53 -0800
committerTony Lindgren <tony@atomide.com>2017-03-06 08:37:53 -0800
commite24bce8fb4c26bd0d8eca74cbbee1ad049246be3 (patch)
treec219c2ec183633aa15841fca5b055a09d2d0b980 /tools/testing/radix-tree/linux/bitops/ffs.h
parentb92675d998a9fa37fe9e0e35053a95b4a23c158b (diff)
parentc1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 (diff)
downloadtalos-op-linux-e24bce8fb4c26bd0d8eca74cbbee1ad049246be3.tar.gz
talos-op-linux-e24bce8fb4c26bd0d8eca74cbbee1ad049246be3.zip
Merge tag 'v4.11-rc1' into omap-for-v4.11/fixes
Linux 4.11-rc1
Diffstat (limited to 'tools/testing/radix-tree/linux/bitops/ffs.h')
-rw-r--r--tools/testing/radix-tree/linux/bitops/ffs.h41
1 files changed, 0 insertions, 41 deletions
diff --git a/tools/testing/radix-tree/linux/bitops/ffs.h b/tools/testing/radix-tree/linux/bitops/ffs.h
deleted file mode 100644
index fbbb43af7dc0..000000000000
--- a/tools/testing/radix-tree/linux/bitops/ffs.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef _ASM_GENERIC_BITOPS_FFS_H_
-#define _ASM_GENERIC_BITOPS_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 inline int ffs(int x)
-{
- int r = 1;
-
- if (!x)
- return 0;
- if (!(x & 0xffff)) {
- x >>= 16;
- r += 16;
- }
- if (!(x & 0xff)) {
- x >>= 8;
- r += 8;
- }
- if (!(x & 0xf)) {
- x >>= 4;
- r += 4;
- }
- if (!(x & 3)) {
- x >>= 2;
- r += 2;
- }
- if (!(x & 1)) {
- x >>= 1;
- r += 1;
- }
- return r;
-}
-
-#endif /* _ASM_GENERIC_BITOPS_FFS_H_ */
OpenPOWER on IntegriCloud