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trace: annotate bitfields in struct ring_buffer_event

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This gets rid of a heap of false-positive warnings from the tracer
code due to the use of bitfields.

[rebased for mainline inclusion]
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
This commit is contained in:
Vegard Nossum 2009-02-28 08:29:44 +01:00
parent a98b65a3ad
commit 1744a21d57
2 changed files with 7 additions and 0 deletions
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4
include/linux/ring_buffer.h
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@ -1,6 +1,7 @@
#ifndef _LINUX_RING_BUFFER_H
#define _LINUX_RING_BUFFER_H
#include <linux/kmemcheck.h>
#include <linux/mm.h>
#include <linux/seq_file.h>
@ -11,7 +12,10 @@ struct ring_buffer_iter;
* Don't refer to this struct directly, use functions below.
*/
struct ring_buffer_event {
kmemcheck_bitfield_begin(bitfield);
u32 type_len:5, time_delta:27;
kmemcheck_bitfield_end(bitfield);
u32 array[];
};