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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 17:25:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 17:25:18 -0800 |
| commit | a57cb1c1d7974c62a5c80f7869e35b492ace12cd (patch) | |
| tree | 5a42ee9a668f171143464bc86013954c1bbe94ad /tools/include/asm/bug.h | |
| parent | cf1b3341afab9d3ad02a76b3a619ea027dcf4e28 (diff) | |
| parent | e1e14ab8411df344a17687821f8f78f0a1e73cbb (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
- a few misc things
- kexec updates
- DMA-mapping updates to better support networking DMA operations
- IPC updates
- various MM changes to improve DAX fault handling
- lots of radix-tree changes, mainly to the test suite. All leading up
to reimplementing the IDA/IDR code to be a wrapper layer over the
radix-tree. However the final trigger-pulling patch is held off for
4.11.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (114 commits)
radix tree test suite: delete unused rcupdate.c
radix tree test suite: add new tag check
radix-tree: ensure counts are initialised
radix tree test suite: cache recently freed objects
radix tree test suite: add some more functionality
idr: reduce the number of bits per level from 8 to 6
rxrpc: abstract away knowledge of IDR internals
tpm: use idr_find(), not idr_find_slowpath()
idr: add ida_is_empty
radix tree test suite: check multiorder iteration
radix-tree: fix replacement for multiorder entries
radix-tree: add radix_tree_split_preload()
radix-tree: add radix_tree_split
radix-tree: add radix_tree_join
radix-tree: delete radix_tree_range_tag_if_tagged()
radix-tree: delete radix_tree_locate_item()
radix-tree: improve multiorder iterators
btrfs: fix race in btrfs_free_dummy_fs_info()
radix-tree: improve dump output
radix-tree: make radix_tree_find_next_bit more useful
...
Diffstat (limited to 'tools/include/asm/bug.h')
| -rw-r--r-- | tools/include/asm/bug.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/include/asm/bug.h b/tools/include/asm/bug.h index 9e5f4846967f..beda1a884b50 100644 --- a/tools/include/asm/bug.h +++ b/tools/include/asm/bug.h @@ -12,6 +12,17 @@ unlikely(__ret_warn_on); \ }) +#define WARN_ON_ONCE(condition) ({ \ + static int __warned; \ + int __ret_warn_once = !!(condition); \ + \ + if (unlikely(__ret_warn_once && !__warned)) { \ + __warned = true; \ + WARN_ON(1); \ + } \ + unlikely(__ret_warn_once); \ +}) + #define WARN_ONCE(condition, format...) ({ \ static int __warned; \ int __ret_warn_once = !!(condition); \ |