[PATCH v8 07/13] coresight: Don't reject unrecognized ETMv3 format attributes

James Clark posted 13 patches 3 days, 10 hours ago
[PATCH v8 07/13] coresight: Don't reject unrecognized ETMv3 format attributes
Posted by James Clark 3 days, 10 hours ago
config isn't the only field, there are also config1, config2, etc.
Rejecting unrecognized attributes is therefore inconsistent as it wasn't
done for all fields. It was only necessary when we were directly
programming attr->config into ETMCR and didn't hide the unsupported
fields, but now it's not needed so remove it.

Reviewed-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
---
 drivers/hwtracing/coresight/coresight-etm3x-core.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm3x-core.c b/drivers/hwtracing/coresight/coresight-etm3x-core.c
index 4511fc2f8d72..584d653eda81 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x-core.c
@@ -333,13 +333,6 @@ static int etm_parse_event_config(struct etm_drvdata *drvdata,
 	if (config->mode)
 		etm_config_trace_mode(config);
 
-	/*
-	 * At this time only cycle accurate, return stack  and timestamp
-	 * options are available.
-	 */
-	if (attr->config & ~ETM3X_SUPPORTED_OPTIONS)
-		return -EINVAL;
-
 	config->ctrl = 0;
 
 	if (ATTR_CFG_GET_FLD(attr, cycacc))

-- 
2.34.1