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tracing: Use memset_startat helper in trace_iterator_reset()

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Make use of memset_startat helper to simplify the code, there should be
no functional change as a result of this patch.

Link: https://lkml.kernel.org/r/20211210012245.207489-1-xiujianfeng@huawei.com

Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Xiu Jianfeng 2021-12-10 09:22:45 +08:00 committed by Steven Rostedt (VMware)
parent 4f67cca70c
commit dba8796722
1 changed files with 1 additions and 8 deletions
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9
kernel/trace/trace.h
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@ -1932,14 +1932,7 @@ extern struct trace_iterator *tracepoint_print_iter;
*/
static __always_inline void trace_iterator_reset(struct trace_iterator *iter)
{
const size_t offset = offsetof(struct trace_iterator, seq);
/*
* Keep gcc from complaining about overwriting more than just one
* member in the structure.
*/
memset((char *)iter + offset, 0, sizeof(struct trace_iterator) - offset);
memset_startat(iter, 0, seq);
iter->pos = -1;
}