Commit-ID: e3d6bf0a0781a269f34250fd41e0d3dbfe540cf1 Gitweb: http://git.kernel.org/tip/e3d6bf0a0781a269f34250fd41e0d3dbfe540cf1 Author: "Steven Rostedt" <srostedt@xxxxxxxxxx> AuthorDate: Tue, 3 Mar 2009 13:53:07 -0500 Commit: Steven Rostedt <srostedt@xxxxxxxxxx> CommitDate: Tue, 3 Mar 2009 20:52:01 -0500 ring-buffer: replace sizeof of event header with offsetof Impact: fix to possible alignment problems on some archs. Some arch compilers include an NULL char array in the sizeof field. Since the ring_buffer_event type includes one of these, it is better to use the "offsetof" instead, to avoid strange bugs on these archs. Signed-off-by: Steven Rostedt <srostedt@xxxxxxxxxx> --- kernel/trace/ring_buffer.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 2ad6bae..27cf834 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -132,7 +132,7 @@ void ring_buffer_normalize_time_stamp(int cpu, u64 *ts) } EXPORT_SYMBOL_GPL(ring_buffer_normalize_time_stamp); -#define RB_EVNT_HDR_SIZE (sizeof(struct ring_buffer_event)) +#define RB_EVNT_HDR_SIZE (offsetof(struct ring_buffer_event, array)) #define RB_ALIGNMENT 4U #define RB_MAX_SMALL_DATA 28 -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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