Re: [PATCH v2 20/23] coresight: trbe: Add fault action argument to trbe_handle_overflow()

On 16/10/2026 17:55, Leo Yan wrote:

Add a new argument to trbe_handle_overflow() for the fault action, which is used to compare the wrap event for trace size calculation.

No functional change intended; this is preparation for a later update.

Signed-off-by: Leo Yan leo.yan@arm.com

drivers/hwtracing/coresight/coresight-trbe.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c index f1f102df6c387f53feaa12b89d3df89f734afcdb..c83c440d4ac13c346bc2a7f9093951c186c90157 100644 --- a/drivers/hwtracing/coresight/coresight-trbe.c +++ b/drivers/hwtracing/coresight/coresight-trbe.c @@ -1132,7 +1132,8 @@ static void trbe_handle_spurious(struct trbe_cpudata *cpudata) set_trbe_enabled(cpudata, trblimitr); } -static int trbe_handle_overflow(struct trbe_cpudata *cpudata) +static int trbe_handle_overflow(struct trbe_cpudata *cpudata,

• 		enum trbe_fault_action act)
  

  { struct perf_output_handle *handle = cpudata->handle; struct perf_event *event = handle->event;

@@ -1147,7 +1148,7 @@ static int trbe_handle_overflow(struct trbe_cpudata *cpudata) */ clr_trbe_status();

• size = trbe_get_trace_size(handle, buf, true);

• size = trbe_get_trace_size(handle, buf, act == TRBE_FAULT_ACT_WRAP); if (buf->snapshot) handle->head += size;

@@ -1253,7 +1254,7 @@ static irqreturn_t arm_trbe_irq_handler(int irq, void *dev) act = trbe_get_fault_act(handle, status); switch (act) { case TRBE_FAULT_ACT_WRAP:

• truncated = !!trbe_handle_overflow(cpudata);
  

• truncated = !!trbe_handle_overflow(cpudata, act);
  

  break; case TRBE_FAULT_ACT_SPURIOUS: trbe_handle_spurious(cpudata);

Reviewed-by: James Clark james.clark@linaro.org