[PATCH v2 4/6] ALSA: control: Minor optimization for SNDRV_CTL_IOCTL_POWER_STATE

[Takashi Iwai]

Long long time ago, before the proper PM framework was introduced, it
was still possible to reach SNDRV_CTL_IOCTL_POWER ioctl during the
power off state.  This ioctl existed as a main control for the suspend
resume state in the past, but the feature was already dropped along
with the standard PM framework.  Now the read part,
SNDRV_IOCTL_POWER_STATE ioctl, returns practically always D0, and we
can do some minor optimization there.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/core/control.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/sound/core/control.c b/sound/core/control.c
index 7fe901384c9c..a25c0d64d104 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1817,11 +1817,7 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg
 	case SNDRV_CTL_IOCTL_POWER:
 		return -ENOPROTOOPT;
 	case SNDRV_CTL_IOCTL_POWER_STATE:
-#ifdef CONFIG_PM
-		return put_user(card->power_state, ip) ? -EFAULT : 0;
-#else
 		return put_user(SNDRV_CTL_POWER_D0, ip) ? -EFAULT : 0;
-#endif
 	}
 	down_read(&snd_ioctl_rwsem);
 	list_for_each_entry(p, &snd_control_ioctls, list) {
-- 
2.26.2