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| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-08-02 22:44:12 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-08-02 23:01:12 +0300 |
| commit | 09794a5a6c348f629b35fc1687071a1622ef4265 (patch) | |
| tree | cf06a8c4d6061eefc4b7689c58da07472e88f5cd /include/trace/stages | |
| parent | 2f63e5d2e391837c70741311b5b70d2fbd15d138 (diff) | |
| download | linux-09794a5a6c348f629b35fc1687071a1622ef4265.tar.xz | |
tracing: Use alignof__(struct {type b;}) instead of offsetof()
Simplify:
#define ALIGN_STRUCTFIELD(type) ((int)(offsetof(struct {char a; type b;}, b)))
with
#define ALIGN_STRUCTFIELD(type) __alignof__(struct {type b;})
Which works just the same.
Link: https://lore.kernel.org/all/a7d202457150472588df0bd3b7334b3f@AcuMS.aculab.com/
Link: https://lkml.kernel.org/r/20220802154412.513c50e3@gandalf.local.home
Suggested-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'include/trace/stages')
| -rw-r--r-- | include/trace/stages/stage4_event_fields.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/trace/stages/stage4_event_fields.h b/include/trace/stages/stage4_event_fields.h index 80d34f396555..a8fb25f39a99 100644 --- a/include/trace/stages/stage4_event_fields.h +++ b/include/trace/stages/stage4_event_fields.h @@ -2,7 +2,7 @@ /* Stage 4 definitions for creating trace events */ -#define ALIGN_STRUCTFIELD(type) ((int)(offsetof(struct {char a; type b;}, b))) +#define ALIGN_STRUCTFIELD(type) ((int)(__alignof__(struct {type b;}))) #undef __field_ext #define __field_ext(_type, _item, _filter_type) { \ |