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Sat, 14 Nov 2026 06:11:19 -0800 (PST) Received: from [192.168.35.40] ([218.50.238.131]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cddc18b4e68sm2442814a12.25.2026.11.14.06.11.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 14 Nov 2026 06:11:17 -0800 (PST) Message-ID: <2d8dbfaf-46d3-4d05-b052-5e8a8670931e@gmail.com> Date: Sat, 14 Nov 2026 23:11:05 +0900 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/9] devfreq: Use trace_call__##name() at guarded tracepoint call sites Content-Language: ko To: Steven Rostedt , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Vineeth Pillai , Peter Zijlstra , Aaron Conole , Alex Deucher , Alexei Starovoitov , Anna-Maria Behnsen , Borislav Petkov , Chanwoo Choi , =?UTF-8?Q?Christian_K=C3=B6nig?= , Daniel Borkmann , Danilo Krummrich , Dave Hansen , David Airlie , "David S. Miller" , Eelco Chaudron , Eric Dumazet , Frederic Weisbecker , Ilya Maximets , Ingo Molnar , Jakub Kicinski , "James E.J. Bottomley" , Jesper Dangaard Brouer , Jiri Pirko , John Fastabend , Jon Maloy , Koby Elbaz , Konstantin Sinyuk , Kyungmin Park , Maarten Lankhorst , Marcelo Ricardo Leitner , "Martin K. Petersen" , Matthew Brost , Maxime Ripard , MyungJoo Ham , Oded Gabbay , Paolo Abeni , Philipp Stanner , Simona Vetter , Sumit Semwal , Thomas Gleixner , Thomas Zimmermann , tipc-discussion@lists.sourceforge.net, Tung Quang Nguyen , Xin Long , x86@kernel.org, amd-gfx@lists.freedesktop.org, bpf@vger.kernel.org, dev@openvswitch.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-pm@vger.kernel.org, linux-scsi@vger.kernel.org, linux-sctp@vger.kernel.org, netdev@vger.kernel.org References: <20261027153658.703730257@kernel.org> <20261027154413.039021489@kernel.org> From: Choi Chanwoo In-Reply-To: <20261027154413.039021489@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/28/2026 12:37 AM, Steven Rostedt wrote: > From: Vineeth Pillai > > 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/20260515135920.2238808-1-vineeth@bitbyteword.org > Suggested-by: Steven Rostedt > Suggested-by: Peter Zijlstra > Signed-off-by: Vineeth Pillai (Google) > Assisted-by: Claude:claude-sonnet-4-6 > Signed-off-by: Steven Rostedt > --- > drivers/devfreq/devfreq.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c > index 82dd9a43dc62..9f71d9dc4a70 100644 > --- a/drivers/devfreq/devfreq.c > +++ b/drivers/devfreq/devfreq.c > @@ -370,7 +370,7 @@ static int devfreq_set_target(struct devfreq *devfreq, unsigned long new_freq, > * change order of between devfreq device and passive devfreq device. > */ > if (trace_devfreq_frequency_enabled() && new_freq != cur_freq) > - trace_devfreq_frequency(devfreq, new_freq, cur_freq); > + trace_call__devfreq_frequency(devfreq, new_freq, cur_freq); > > freqs.new = new_freq; > devfreq_notify_transition(devfreq, &freqs, DEVFREQ_POSTCHANGE); Applied it. Thanks, Chanwoo Choi