[PATCH 4/9] dma-buf: Use trace_call__##name() at guarded tracepoint call sites

From: Steven Rostedt

Date: Tue Oct 27 2026 - 11:49:46 EST


From: Vineeth Pillai <vineeth@xxxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxxx/

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/20260515135927.2238823-1-vineeth@xxxxxxxxxxxxxxx
Suggested-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Suggested-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Signed-off-by: Vineeth Pillai (Google) <vineeth@xxxxxxxxxxxxxxx>
Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
drivers/dma-buf/dma-fence.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index bd58688b81a7..f7dee2f7c0de 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -554,7 +554,7 @@ dma_fence_wait_timeout(struct dma_fence *fence, bool intr, signed long timeout)
}
if (trace_dma_fence_wait_end_enabled()) {
rcu_read_lock();
- trace_dma_fence_wait_end(fence);
+ trace_call__dma_fence_wait_end(fence);
rcu_read_unlock();
}
return ret;
--
2.53.0