Re: [PATCH v6 11/14] kernel: events: Export perf_report_aux_output_id()

From: Suzuki K Poulose
Date: Tue Dec 13 2022 - 05:08:19 EST


Peter,

On 24/11/2022 11:04, Suzuki Kuruppassery Poulose wrote:
Peter


On 23/11/2022 19:50, Mike Leach wrote:
CoreSight trace being updated to use the perf_report_aux_output_id()
in a similar way to intel-pt.

This function in needs export visibility to allow it to be called from
kernel loadable modules, which CoreSight may configured to be built as.

Signed-off-by: Mike Leach <mike.leach@xxxxxxxxxx>
Acked-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
---
  kernel/events/core.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 4ec3717003d5..ad388552f1d5 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9231,6 +9231,7 @@ void perf_report_aux_output_id(struct perf_event *event, u64 hw_id)
      perf_output_end(&handle);
  }
+EXPORT_SYMBOL_GPL(perf_report_aux_output_id);

Are you happy with me picking up this change through the coresight  tree ?

Suzuki


Please could you let me know your thoughts on this ? Coresight PMU would
use this to inform the dynamically allocated trace id for a CPU to the
perf via this HWID packet.

If you are happy with the above change, I could pick it up via the
coresight tree with your Ack. Otherwise, please could you pick it
up ?

Suzuki