[PATCH v2 3/3] coresight: Update comments for removing cs_etm_find_snapshot()

[Leo Yan]

Since the function cs_etm_find_snapshot() has been removed in the user
space, it directly uses the perf common function __auxtrace_mmap__read()
to calcualte the head and size for AUX trace data in snapshot mode.

Updates the comments in drivers to reflect the changes.

Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
---
 drivers/hwtracing/coresight/coresight-etb10.c   | 2 +-
 drivers/hwtracing/coresight/coresight-tmc-etf.c | 2 +-
 drivers/hwtracing/coresight/coresight-tmc-etr.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index f775cbee12b8..1cdb627d6c38 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -557,7 +557,7 @@ static unsigned long etb_update_buffer(struct coresight_device *csdev,
 
 	/*
 	 * In snapshot mode we simply increment the head by the number of byte
-	 * that were written.  User space function  cs_etm_find_snapshot() will
+	 * that were written.  User space function __auxtrace_mmap__read() will
 	 * figure out how many bytes to get from the AUX buffer based on the
 	 * position of the head.
 	 */
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c
index 45b85edfc690..fec8ef3694cf 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etf.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c
@@ -546,7 +546,7 @@ static unsigned long tmc_update_etf_buffer(struct coresight_device *csdev,
 
 	/*
 	 * In snapshot mode we simply increment the head by the number of byte
-	 * that were written.  User space function  cs_etm_find_snapshot() will
+	 * that were written.  User space function __auxtrace_mmap__read() will
 	 * figure out how many bytes to get from the AUX buffer based on the
 	 * position of the head.
 	 */
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index b22823d67680..960515e01171 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -1555,7 +1555,7 @@ tmc_update_etr_buffer(struct coresight_device *csdev,
 
 	/*
 	 * In snapshot mode we simply increment the head by the number of byte
-	 * that were written.  User space function  cs_etm_find_snapshot() will
+	 * that were written.  User space function __auxtrace_mmap__read() will
 	 * figure out how many bytes to get from the AUX buffer based on the
 	 * position of the head.
 	 */
-- 
2.25.1