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From: Steven Rostedt <rostedt@kernel.org>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Cc: "Masami Hiramatsu" <mhiramat@kernel.org>,
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Subject: [PATCH 7/9] net: devlink: Use trace_call__##name() at guarded tracepoint call sites
Date: Tue, 27 Oct 2026 11:37:05 -0400	[thread overview]
Message-ID: <20261027154413.807515174@kernel.org> (raw)
In-Reply-To: 20261027153658.703730257@kernel.org

From: Vineeth Pillai <vineeth@bitbyteword.org>

Replace trace_foo() with the new trace_call__foo() at sites already
guarded by trace_foo_enabled(), avoiding a redundant
static_branch_unlikely() re-evaluation inside the tracepoint.
trace_call__foo() calls the tracepoint callbacks directly without
utilizing the static branch again.

Original v2 series:
https://lore.kernel.org/linux-trace-kernel/20260323160052.17528-1-vineeth@bitbyteword.org/

Parts of the original v2 series have already been merged in mainline.
This patch is being reposted as a follow-up cleanup for the remaining
unmerged pieces.

Link: https://patch.msgid.link/20260515135953.2238907-1-vineeth@bitbyteword.org
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineeth Pillai (Google) <vineeth@bitbyteword.org>
Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 net/devlink/trap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/devlink/trap.c b/net/devlink/trap.c
index 793ffc66dc11..d99427f3b953 100644
--- a/net/devlink/trap.c
+++ b/net/devlink/trap.c
@@ -1497,7 +1497,7 @@ void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
 
 		devlink_trap_report_metadata_set(&metadata, trap_item,
 						 in_devlink_port, fa_cookie);
-		trace_devlink_trap_report(devlink, skb, &metadata);
+		trace_call__devlink_trap_report(devlink, skb, &metadata);
 	}
 }
 EXPORT_SYMBOL_GPL(devlink_trap_report);
-- 
2.53.0

  parent reply	other threads:[~2026-10-27 15:44 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-27 15:36 [PATCH 0/9] tracing: Use trace_call__FOO() for tracepoints behind trace_FOO_enabled() Steven Rostedt
2026-10-27 15:36 ` [PATCH 1/9] net: Use trace_call__##name() at guarded tracepoint call sites Steven Rostedt
2026-10-27 15:37 ` [PATCH 2/9] accel/habanalabs: " Steven Rostedt
2026-10-27 15:37 ` [PATCH 3/9] devfreq: " Steven Rostedt
2026-10-27 15:37 ` [PATCH 4/9] dma-buf: " Steven Rostedt
2026-10-27 15:37 ` [PATCH 5/9] drm: " Steven Rostedt
2026-10-27 15:37 ` [PATCH 6/9] scsi: ufs: " Steven Rostedt
2026-10-27 15:37 ` Steven Rostedt [this message]
2026-10-27 15:37 ` [PATCH 8/9] kernel: time, trace: " Steven Rostedt
2026-10-27 15:37 ` [PATCH 9/9] x86: msr: " Steven Rostedt

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