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ALSA: constify snd_pcm_ops structures

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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>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Julia Lawall
2016-09-02 00:13:10 +02:00
committed by Takashi Iwai
parent 9d5262ae9b
commit 6769e988b0
39 changed files with 114 additions and 114 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
sound/pci/trident/trident_main.c
View File

@@ -2070,7 +2070,7 @@ static int snd_trident_foldback_close(struct snd_pcm_substream *substream)
PCM operations
---------------------------------------------------------------------------*/
static struct snd_pcm_ops snd_trident_playback_ops = {
static const struct snd_pcm_ops snd_trident_playback_ops = {
.open = snd_trident_playback_open,
.close = snd_trident_playback_close,
.ioctl = snd_trident_ioctl,
@@ -2081,7 +2081,7 @@ static struct snd_pcm_ops snd_trident_playback_ops = {
.pointer = snd_trident_playback_pointer,
};
static struct snd_pcm_ops snd_trident_nx_playback_ops = {
static const struct snd_pcm_ops snd_trident_nx_playback_ops = {
.open = snd_trident_playback_open,
.close = snd_trident_playback_close,
.ioctl = snd_trident_ioctl,
@@ -2115,7 +2115,7 @@ static struct snd_pcm_ops snd_trident_si7018_capture_ops = {
.pointer = snd_trident_playback_pointer,
};
static struct snd_pcm_ops snd_trident_foldback_ops = {
static const struct snd_pcm_ops snd_trident_foldback_ops = {
.open = snd_trident_foldback_open,
.close = snd_trident_foldback_close,
.ioctl = snd_trident_ioctl,
@@ -2126,7 +2126,7 @@ static struct snd_pcm_ops snd_trident_foldback_ops = {
.pointer = snd_trident_playback_pointer,
};
static struct snd_pcm_ops snd_trident_nx_foldback_ops = {
static const struct snd_pcm_ops snd_trident_nx_foldback_ops = {
.open = snd_trident_foldback_open,
.close = snd_trident_foldback_close,
.ioctl = snd_trident_ioctl,
@@ -2138,7 +2138,7 @@ static struct snd_pcm_ops snd_trident_nx_foldback_ops = {
.page = snd_pcm_sgbuf_ops_page,
};
static struct snd_pcm_ops snd_trident_spdif_ops = {
static const struct snd_pcm_ops snd_trident_spdif_ops = {
.open = snd_trident_spdif_open,
.close = snd_trident_spdif_close,
.ioctl = snd_trident_ioctl,
@@ -2149,7 +2149,7 @@ static struct snd_pcm_ops snd_trident_spdif_ops = {
.pointer = snd_trident_spdif_pointer,
};
static struct snd_pcm_ops snd_trident_spdif_7018_ops = {
static const struct snd_pcm_ops snd_trident_spdif_7018_ops = {
.open = snd_trident_spdif_open,
.close = snd_trident_spdif_close,
.ioctl = snd_trident_ioctl,