diff options
| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2015-10-07 09:26:40 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-07 17:54:09 +0100 |
| commit | 58b8d51b841eff6473df4d25959a2ec335b7cb85 (patch) | |
| tree | 781b214ec054823bf3c26b0783ce5067706297f5 /drivers/hwtracing/coresight/coresight.c | |
| parent | 1d27ff5aba2d36b152542e9d62158eb6584bcbd3 (diff) | |
coresight: adding comments to remove ambiguity
Add comment to function coresight_enable_path() to make
sure there is no misunderstanding about what the code does.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c index 894531d315b8..e25492137d8b 100644 --- a/drivers/hwtracing/coresight/coresight.c +++ b/drivers/hwtracing/coresight/coresight.c @@ -240,6 +240,11 @@ static int coresight_enable_path(struct list_head *path) int ret = 0; struct coresight_device *cd; + /* + * At this point we have a full @path, from source to sink. The + * sink is the first entry and the source the last one. Go through + * all the components and enable them one by one. + */ list_for_each_entry(cd, path, path_link) { if (cd == list_first_entry(path, struct coresight_device, path_link)) { |