From 58b8d51b841eff6473df4d25959a2ec335b7cb85 Mon Sep 17 00:00:00 2001 From: Mathieu Poirier Date: Wed, 7 Oct 2015 09:26:40 -0600 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/hwtracing/coresight/coresight.c | 5 +++++ 1 file changed, 5 insertions(+) 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)) { -- 2.20.1