From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Xiu Jianfeng <xiujianfeng@huawei.com>
Subject: [for-next][PATCH 06/11] tracing: Use memset_startat helper in trace_iterator_reset()
Date: Sat, 11 Dec 2021 20:26:23 -0500 [thread overview]
Message-ID: <20211212012645.674450187@goodmis.org> (raw)
In-Reply-To: <20211212012617.690710310@goodmis.org>
From: Xiu Jianfeng <xiujianfeng@huawei.com>
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>
---
kernel/trace/trace.h | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 8bd1a815ce90..64a7ec44a635 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -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;
}
--
2.33.0
next prev parent reply other threads:[~2021-12-12 1:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-12 1:26 [for-next][PATCH 00/11] tracing: More updates for 5.17 Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 01/11] tracing: Make trace_marker{,_raw} stream-like Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 02/11] script/sorttable: Code style improvements Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 03/11] tracefs: Use d_inode() helper function to get the dentry inode Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 04/11] tracing: Iterate trace_[ku]probe objects directly Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 05/11] tracing: Do not let synth_events block other dyn_event systems during create Steven Rostedt
2021-12-12 1:26 ` Steven Rostedt [this message]
2021-12-12 1:26 ` [for-next][PATCH 07/11] tracing: Use trace_iterator_reset() in tracing_read_pipe() Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 08/11] tracing: Change event_command func() to parse() Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 09/11] tracing: Change event_trigger_ops func() to trigger() Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 10/11] tracing: Add helper functions to simplify event_command.parse() callback handling Steven Rostedt
2021-12-12 1:26 ` [for-next][PATCH 11/11] tracing: Have existing event_command.parse() implementations use helpers Steven Rostedt
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