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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 15:45:43 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 15:45:43 +0900
commit5cbb3d216e2041700231bcfc383ee5f8b7fc8b74 (patch)
treea738fa82dbcefa9bd283c08bc67f38827be63937 /include/asm-generic
parent9bc9ccd7db1c9f043f75380b5a5b94912046a60e (diff)
parent4e9b45a19241354daec281d7a785739829b52359 (diff)
Merge branch 'akpm' (patches from Andrew Morton)
Merge first patch-bomb from Andrew Morton: "Quite a lot of other stuff is banked up awaiting further next->mainline merging, but this batch contains: - Lots of random misc patches - OCFS2 - Most of MM - backlight updates - lib/ updates - printk updates - checkpatch updates - epoll tweaking - rtc updates - hfs - hfsplus - documentation - procfs - update gcov to gcc-4.7 format - IPC" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (269 commits) ipc, msg: fix message length check for negative values ipc/util.c: remove unnecessary work pending test devpts: plug the memory leak in kill_sb ./Makefile: export initial ramdisk compression config option init/Kconfig: add option to disable kernel compression drivers: w1: make w1_slave::flags long to avoid memory corruption drivers/w1/masters/ds1wm.cuse dev_get_platdata() drivers/memstick/core/ms_block.c: fix unreachable state in h_msb_read_page() drivers/memstick/core/mspro_block.c: fix attributes array allocation drivers/pps/clients/pps-gpio.c: remove redundant of_match_ptr kernel/panic.c: reduce 1 byte usage for print tainted buffer gcov: reuse kbasename helper kernel/gcov/fs.c: use pr_warn() kernel/module.c: use pr_foo() gcov: compile specific gcov implementation based on gcc version gcov: add support for gcc 4.7 gcov format gcov: move gcov structs definitions to a gcc version specific file kernel/taskstats.c: return -ENOMEM when alloc memory fails in add_del_listener() kernel/taskstats.c: add nla_nest_cancel() for failure processing between nla_nest_start() and nla_nest_end() kernel/sysctl_binary.c: use scnprintf() instead of snprintf() ...
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/bitops/find.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h
index 71c778033f57..998d4d544f18 100644
--- a/include/asm-generic/bitops/find.h
+++ b/include/asm-generic/bitops/find.h
@@ -7,6 +7,9 @@
* @addr: The address to base the search on
* @offset: The bitnumber to start searching at
* @size: The bitmap size in bits
+ *
+ * Returns the bit number for the next set bit
+ * If no bits are set, returns @size.
*/
extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
size, unsigned long offset);
@@ -18,6 +21,9 @@ extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
* @addr: The address to base the search on
* @offset: The bitnumber to start searching at
* @size: The bitmap size in bits
+ *
+ * Returns the bit number of the next zero bit
+ * If no bits are zero, returns @size.
*/
extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
long size, unsigned long offset);
@@ -28,9 +34,10 @@ extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
/**
* find_first_bit - find the first set bit in a memory region
* @addr: The address to start the search at
- * @size: The maximum size to search
+ * @size: The maximum number of bits to search
*
* Returns the bit number of the first set bit.
+ * If no bits are set, returns @size.
*/
extern unsigned long find_first_bit(const unsigned long *addr,
unsigned long size);
@@ -38,9 +45,10 @@ extern unsigned long find_first_bit(const unsigned long *addr,
/**
* find_first_zero_bit - find the first cleared bit in a memory region
* @addr: The address to start the search at
- * @size: The maximum size to search
+ * @size: The maximum number of bits to search
*
* Returns the bit number of the first cleared bit.
+ * If no bits are zero, returns @size.
*/
extern unsigned long find_first_zero_bit(const unsigned long *addr,
unsigned long size);