[PATCH v2 13/14] ASoC: dapm: Open-code widget invalidation walk

[Kaitao Cheng]

From: Kaitao Cheng <chengkaitao@xxxxxxxxxx>

A later change will make list_for_each_entry() cache the next element
before entering the loop body. dapm_widget_invalidate_paths() appends
newly reached widgets to the temporary work list while walking it.

Keep the work-list walk open-coded so the next widget is looked up after
new widgets have been appended. This preserves the existing invalidation
traversal semantics and prepares the code for the list iterator update.

Signed-off-by: Kaitao Cheng <chengkaitao@xxxxxxxxxx>
---
 sound/soc/soc-dapm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index d6192204e613..5bd921fca132 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -255,7 +255,9 @@ static __always_inline void dapm_widget_invalidate_paths(
 	list_add_tail(&w->work_list, &list);
 	w->endpoints[dir] = -1;
 
-	list_for_each_entry(w, &list, work_list) {
+	for (w = list_first_entry(&list, typeof(*w), work_list);
+	     !list_entry_is_head(w, &list, work_list);
+	     w = list_next_entry(w, work_list)) {
 		snd_soc_dapm_widget_for_each_path(w, dir, p) {
 			if (p->is_supply || !p->connect)
 				continue;
-- 
2.43.0