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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-18 19:26:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-18 19:26:54 -0700 |
| commit | 814a2bf957739f367cbebfa1b60237387b72d0ee (patch) | |
| tree | 8d65c38d14beb8d6d2dc5b9d7f8dbe63c7cad31a /tools/testing/radix-tree/linux/bitops/ffz.h | |
| parent | 237045fc3c67d44088f767dca5a9fa30815eba62 (diff) | |
| parent | f9310b2f9a19b7f16c7b1c1558f8b649b9b933c1 (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge second patch-bomb from Andrew Morton:
- a couple of hotfixes
- the rest of MM
- a new timer slack control in procfs
- a couple of procfs fixes
- a few misc things
- some printk tweaks
- lib/ updates, notably to radix-tree.
- add my and Nick Piggin's old userspace radix-tree test harness to
tools/testing/radix-tree/. Matthew said it was a godsend during the
radix-tree work he did.
- a few code-size improvements, switching to __always_inline where gcc
screwed up.
- partially implement character sets in sscanf
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
sscanf: implement basic character sets
lib/bug.c: use common WARN helper
param: convert some "on"/"off" users to strtobool
lib: add "on"/"off" support to kstrtobool
lib: update single-char callers of strtobool()
lib: move strtobool() to kstrtobool()
include/linux/unaligned: force inlining of byteswap operations
include/uapi/linux/byteorder, swab: force inlining of some byteswap operations
include/asm-generic/atomic-long.h: force inlining of some atomic_long operations
usb: common: convert to use match_string() helper
ide: hpt366: convert to use match_string() helper
ata: hpt366: convert to use match_string() helper
power: ab8500: convert to use match_string() helper
power: charger_manager: convert to use match_string() helper
drm/edid: convert to use match_string() helper
pinctrl: convert to use match_string() helper
device property: convert to use match_string() helper
lib/string: introduce match_string() helper
radix-tree tests: add test for radix_tree_iter_next
radix-tree tests: add regression3 test
...
Diffstat (limited to 'tools/testing/radix-tree/linux/bitops/ffz.h')
| -rw-r--r-- | tools/testing/radix-tree/linux/bitops/ffz.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/testing/radix-tree/linux/bitops/ffz.h b/tools/testing/radix-tree/linux/bitops/ffz.h new file mode 100644 index 000000000000..6744bd4cdf46 --- /dev/null +++ b/tools/testing/radix-tree/linux/bitops/ffz.h @@ -0,0 +1,12 @@ +#ifndef _ASM_GENERIC_BITOPS_FFZ_H_ +#define _ASM_GENERIC_BITOPS_FFZ_H_ + +/* + * ffz - find first zero in word. + * @word: The word to search + * + * Undefined if no zero exists, so code should check against ~0UL first. + */ +#define ffz(x) __ffs(~(x)) + +#endif /* _ASM_GENERIC_BITOPS_FFZ_H_ */ |