diff options
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc-etr.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc-etr.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c index 3fe7967efa51..1ed2ea51f222 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etr.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c @@ -1525,7 +1525,7 @@ tmc_update_etr_buffer(struct coresight_device *csdev, goto out; } - if (WARN_ON(drvdata->perf_data != etr_perf)) { + if (WARN_ON(drvdata->perf_buf != etr_buf)) { lost = true; spin_unlock_irqrestore(&drvdata->spinlock, flags); goto out; @@ -1537,8 +1537,6 @@ tmc_update_etr_buffer(struct coresight_device *csdev, tmc_sync_etr_buf(drvdata); CS_LOCK(drvdata->base); - /* Reset perf specific data */ - drvdata->perf_data = NULL; spin_unlock_irqrestore(&drvdata->spinlock, flags); size = etr_buf->len; @@ -1592,7 +1590,6 @@ static int tmc_enable_etr_sink_perf(struct coresight_device *csdev, void *data) } etr_perf->head = PERF_IDX2OFF(handle->head, etr_perf); - drvdata->perf_data = etr_perf; /* * No HW configuration is needed if the sink is already in @@ -1608,6 +1605,7 @@ static int tmc_enable_etr_sink_perf(struct coresight_device *csdev, void *data) /* Associate with monitored process. */ drvdata->pid = pid; drvdata->mode = CS_MODE_PERF; + drvdata->perf_buf = etr_perf->etr_buf; atomic_inc(csdev->refcnt); } @@ -1653,6 +1651,8 @@ static int tmc_disable_etr_sink(struct coresight_device *csdev) /* Dissociate from monitored process. */ drvdata->pid = -1; drvdata->mode = CS_MODE_DISABLED; + /* Reset perf specific data */ + drvdata->perf_buf = NULL; spin_unlock_irqrestore(&drvdata->spinlock, flags); |