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Fri, 15 May 2026 07:02:27 -0700 (PDT) From: "Vineeth Pillai (Google)" To: Boris Brezillon , Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, Steven Rostedt , linux-trace-kernel@vger.kernel.org, Vineeth Pillai , Peter Zijlstra Subject: [PATCH 3/3] drm/panthor: Use trace_call__##name() at guarded tracepoint call sites Date: Fri, 15 May 2026 10:02:14 -0400 Message-ID: <20260515140214.2239486-1-vineeth@bitbyteword.org> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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. Suggested-by: Steven Rostedt Suggested-by: Peter Zijlstra Signed-off-by: Vineeth Pillai (Google) Assisted-by: Claude:claude-sonnet-4-6 --- drivers/gpu/drm/panthor/panthor_fw.c | 4 ++-- drivers/gpu/drm/panthor/panthor_gpu.c | 8 ++++---- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor/panthor_fw.c index 8886002e1d31..601d464b312c 100644 --- a/drivers/gpu/drm/panthor/panthor_fw.c +++ b/drivers/gpu/drm/panthor/panthor_fw.c @@ -1080,10 +1080,10 @@ static void panthor_job_irq_handler(struct panthor_device *ptdev, u32 status) panthor_sched_report_fw_events(ptdev, status); - if (tracepoint_enabled(gpu_job_irq) && start) { + if (start) { if (check_sub_overflow(ktime_get_ns(), start, &duration)) duration = U32_MAX; - trace_gpu_job_irq(ptdev->base.dev, status, duration); + trace_call__gpu_job_irq(ptdev->base.dev, status, duration); } } PANTHOR_IRQ_HANDLER(job, JOB, panthor_job_irq_handler); diff --git a/drivers/gpu/drm/panthor/panthor_gpu.c b/drivers/gpu/drm/panthor/panthor_gpu.c index 2ab444ee8c71..b19754d7093c 100644 --- a/drivers/gpu/drm/panthor/panthor_gpu.c +++ b/drivers/gpu/drm/panthor/panthor_gpu.c @@ -87,10 +87,10 @@ static void panthor_gpu_irq_handler(struct panthor_device *ptdev, u32 status) gpu_write(ptdev, GPU_INT_CLEAR, status); if (tracepoint_enabled(gpu_power_status) && (status & GPU_POWER_INTERRUPTS_MASK)) - trace_gpu_power_status(ptdev->base.dev, - gpu_read64(ptdev, SHADER_READY), - gpu_read64(ptdev, TILER_READY), - gpu_read64(ptdev, L2_READY)); + trace_call__gpu_power_status(ptdev->base.dev, + gpu_read64(ptdev, SHADER_READY), + gpu_read64(ptdev, TILER_READY), + gpu_read64(ptdev, L2_READY)); if (status & GPU_IRQ_FAULT) { u32 fault_status = gpu_read(ptdev, GPU_FAULT_STATUS); -- 2.54.0