ALSA: pci: constify local structures

For structure types defined in the same file or local header files, find
top-level static structure declarations that have the following
properties:
1. Never reassigned.
2. Address never taken
3. Not passed to a top-level macro call
4. No pointer or array-typed field passed to a function or stored in a
variable.
Declare structures having all of these properties as const.

Done using Coccinelle.
Based on a suggestion by Joe Perches <joe@perches.com>.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

3 files changed, 7 insertions, 7 deletions

diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c
index 977a59855fa6..908658a00377 100644
--- a/sound/pci/ctxfi/ctatc.c
+++ b/sound/pci/ctxfi/ctatc.c
@@ -1623,7 +1623,7 @@ static int atc_resume(struct ct_atc *atc)
 }
 #endif
 
-static struct ct_atc atc_preset = {
+static const struct ct_atc atc_preset = {
         .map_audio_buffer = ct_map_audio_buffer,
         .unmap_audio_buffer = ct_unmap_audio_buffer,
         .pcm_playback_prepare = atc_pcm_playback_prepare,
diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 9ceb2bc36e68..ad06866d7c69 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -4018,7 +4018,7 @@ static int ca0132_build_controls(struct hda_codec *codec)
 /*
  * PCM
  */
-static struct hda_pcm_stream ca0132_pcm_analog_playback = {
+static const struct hda_pcm_stream ca0132_pcm_analog_playback = {
         .substreams = 1,
         .channels_min = 2,
         .channels_max = 6,
@@ -4029,7 +4029,7 @@ static struct hda_pcm_stream ca0132_pcm_analog_playback = {
         },
 };
 
-static struct hda_pcm_stream ca0132_pcm_analog_capture = {
+static const struct hda_pcm_stream ca0132_pcm_analog_capture = {
         .substreams = 1,
         .channels_min = 2,
         .channels_max = 2,
@@ -4040,7 +4040,7 @@ static struct hda_pcm_stream ca0132_pcm_analog_capture = {
         },
 };
 
-static struct hda_pcm_stream ca0132_pcm_digital_playback = {
+static const struct hda_pcm_stream ca0132_pcm_digital_playback = {
         .substreams = 1,
         .channels_min = 2,
         .channels_max = 2,
@@ -4052,7 +4052,7 @@ static struct hda_pcm_stream ca0132_pcm_digital_playback = {
         },
 };
 
-static struct hda_pcm_stream ca0132_pcm_digital_capture = {
+static const struct hda_pcm_stream ca0132_pcm_digital_capture = {
         .substreams = 1,
         .channels_min = 2,
         .channels_max = 2,
@@ -4614,7 +4614,7 @@ static void ca0132_free(struct hda_codec *codec)
         kfree(codec->spec);
 }
 
-static struct hda_codec_ops ca0132_patch_ops = {
+static const struct hda_codec_ops ca0132_patch_ops = {
         .build_controls = ca0132_build_controls,
         .build_pcms = ca0132_build_pcms,
         .init = ca0132_init,
diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c
index ae41fcb89384..ada5f01d479c 100644
--- a/sound/pci/riptide/riptide.c
+++ b/sound/pci/riptide/riptide.c
@@ -644,7 +644,7 @@ static struct lbuspath lbus_play_paths[] = {
          .mono = lbus_play_mono3,
          },
 };
-static struct lbuspath lbus_rec_path = {
+static const struct lbuspath lbus_rec_path = {
         .noconv = lbus_rec_noconv1,
         .stereo = lbus_rec_stereo1,
         .mono = lbus_rec_mono1,