[alsa-devel] [PATCH] ASoC: dapm: Only mark pin widgets as dirty if we actually change state

Small optimisation for noop state updates.

Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/soc-dapm.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 2844879..a2a9c11 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -1915,10 +1915,12 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, return -EINVAL; }

+ if (w->connected != status) + dapm_mark_dirty(w, "pin configuration"); + w->connected = status; if (status == 0) w->force = 0; - dapm_mark_dirty(w, "pin configuration");

return 0; }