ALSA: pcm: remove SNDRV_PCM_IOCTL1_INFO internal command
commit e11f0f90a626f93899687b1cc909ee37dd6c5809 upstream.
Drivers can implement 'struct snd_pcm_ops.ioctl' to handle some requests
from ALSA PCM core. These requests are internal purpose in kernel land.
Usually common set of operations are used for it.
SNDRV_PCM_IOCTL1_INFO is one of the requests. According to code comment,
it has been obsoleted in the old days.
We can see old releases in ftp.alsa-project.org. The command was firstly
introduced in v0.5.0 release as SND_PCM_IOCTL1_INFO, to allow drivers to
fill data of 'struct snd_pcm_channel_info' type. In v0.9.0 release,
this was obsoleted by the other commands for ioctl(2) such as
SNDRV_PCM_IOCTL_CHANNEL_INFO.
This commit removes the long-abandoned command, bye.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index af1fb37..b1d3cce 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -100,7 +100,7 @@
#endif
#define SNDRV_PCM_IOCTL1_RESET 0
-#define SNDRV_PCM_IOCTL1_INFO 1
+/* 1 is absent slot. */
#define SNDRV_PCM_IOCTL1_CHANNEL_INFO 2
#define SNDRV_PCM_IOCTL1_GSTATE 3
#define SNDRV_PCM_IOCTL1_FIFO_SIZE 4
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index f57a58a..3acb373 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1849,8 +1849,6 @@
unsigned int cmd, void *arg)
{
switch (cmd) {
- case SNDRV_PCM_IOCTL1_INFO:
- return 0;
case SNDRV_PCM_IOCTL1_RESET:
return snd_pcm_lib_ioctl_reset(substream, arg);
case SNDRV_PCM_IOCTL1_CHANNEL_INFO:
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index f5eb10f..b480984 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -214,11 +214,7 @@
info->subdevices_avail = pstr->substream_count - pstr->substream_opened;
strlcpy(info->subname, substream->name, sizeof(info->subname));
runtime = substream->runtime;
- /* AB: FIXME!!! This is definitely nonsense */
- if (runtime) {
- info->sync = runtime->sync;
- substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_INFO, info);
- }
+
return 0;
}