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ALSA: firewire: constify snd_pcm_ops structures 

Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops.  The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };

@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;

@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)

@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct snd_pcm_ops i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Julia Lawall 2016-09-02 00:13:11 +02:00 committed by Takashi Iwai
parent 6769e988b0
commit 5116ffc32d
4 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sound/firewire/dice/dice-pcm.c
View File

@ -302,7 +302,7 @@ static snd_pcm_uframes_t playback_pointer(struct snd_pcm_substream *substream)
int snd_dice_create_pcm(struct snd_dice *dice)
{
static struct snd_pcm_ops capture_ops = {
static const struct snd_pcm_ops capture_ops = {
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
@ -314,7 +314,7 @@ int snd_dice_create_pcm(struct snd_dice *dice)
.page = snd_pcm_lib_get_vmalloc_page,
.mmap = snd_pcm_lib_mmap_vmalloc,
};
static struct snd_pcm_ops playback_ops = {
static const struct snd_pcm_ops playback_ops = {
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,

4
sound/firewire/digi00x/digi00x-pcm.c
View File

@ -329,7 +329,7 @@ static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstrm)
return amdtp_stream_pcm_pointer(&dg00x->rx_stream);
}
static struct snd_pcm_ops pcm_capture_ops = {
static const struct snd_pcm_ops pcm_capture_ops = {
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
@ -341,7 +341,7 @@ static struct snd_pcm_ops pcm_capture_ops = {
.page = snd_pcm_lib_get_vmalloc_page,
};
static struct snd_pcm_ops pcm_playback_ops = {
static const struct snd_pcm_ops pcm_playback_ops = {
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,

4
sound/firewire/oxfw/oxfw-pcm.c
View File

@ -388,7 +388,7 @@ static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstm)
int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
{
static struct snd_pcm_ops capture_ops = {
static const struct snd_pcm_ops capture_ops = {
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
@ -400,7 +400,7 @@ int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
.page = snd_pcm_lib_get_vmalloc_page,
.mmap = snd_pcm_lib_mmap_vmalloc,
};
static struct snd_pcm_ops playback_ops = {
static const struct snd_pcm_ops playback_ops = {
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,

4
sound/firewire/tascam/tascam-pcm.c
View File

@ -268,7 +268,7 @@ static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstrm)
return amdtp_stream_pcm_pointer(&tscm->rx_stream);
}
static struct snd_pcm_ops pcm_capture_ops = {
static const struct snd_pcm_ops pcm_capture_ops = {
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
@ -280,7 +280,7 @@ static struct snd_pcm_ops pcm_capture_ops = {
.page = snd_pcm_lib_get_vmalloc_page,
};
static struct snd_pcm_ops pcm_playback_ops = {
static const struct snd_pcm_ops pcm_playback_ops = {
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,