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ALSA: dummy: More constifications

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Apply const prefix to every possible place: mostly for declaring the
dummy hardware models.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-01-05 15:47:19 +01:00
parent 6b0f95c49d
commit d64e7f7c9e
1 changed files with 12 additions and 12 deletions
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24
sound/drivers/dummy.c
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@ -117,7 +117,7 @@ struct dummy_model {
struct snd_dummy {
struct snd_card *card;
struct dummy_model *model;
const struct dummy_model *model;
struct snd_pcm *pcm;
struct snd_pcm_hardware pcm_hw;
spinlock_t mixer_lock;
@ -144,13 +144,13 @@ static int emu10k1_playback_constraints(struct snd_pcm_runtime *runtime)
return 0;
}
static struct dummy_model model_emu10k1 = {
static const struct dummy_model model_emu10k1 = {
.name = "emu10k1",
.playback_constraints = emu10k1_playback_constraints,
.buffer_bytes_max = 128 * 1024,
};
static struct dummy_model model_rme9652 = {
static const struct dummy_model model_rme9652 = {
.name = "rme9652",
.buffer_bytes_max = 26 * 64 * 1024,
.formats = SNDRV_PCM_FMTBIT_S32_LE,
@ -160,7 +160,7 @@ static struct dummy_model model_rme9652 = {
.periods_max = 2,
};
static struct dummy_model model_ice1712 = {
static const struct dummy_model model_ice1712 = {
.name = "ice1712",
.buffer_bytes_max = 256 * 1024,
.formats = SNDRV_PCM_FMTBIT_S32_LE,
@ -170,7 +170,7 @@ static struct dummy_model model_ice1712 = {
.periods_max = 1024,
};
static struct dummy_model model_uda1341 = {
static const struct dummy_model model_uda1341 = {
.name = "uda1341",
.buffer_bytes_max = 16380,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
@ -180,7 +180,7 @@ static struct dummy_model model_uda1341 = {
.periods_max = 255,
};
static struct dummy_model model_ac97 = {
static const struct dummy_model model_ac97 = {
.name = "ac97",
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.channels_min = 2,
@ -190,7 +190,7 @@ static struct dummy_model model_ac97 = {
.rate_max = 48000,
};
static struct dummy_model model_ca0106 = {
static const struct dummy_model model_ca0106 = {
.name = "ca0106",
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.buffer_bytes_max = ((65536-64)*8),
@ -204,7 +204,7 @@ static struct dummy_model model_ca0106 = {
.rate_max = 192000,
};
static struct dummy_model *dummy_models[] = {
static const struct dummy_model *dummy_models[] = {
&model_emu10k1,
&model_rme9652,
&model_ice1712,
@ -535,7 +535,7 @@ static int dummy_pcm_hw_params(struct snd_pcm_substream *substream,
static int dummy_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
struct dummy_model *model = dummy->model;
const struct dummy_model *model = dummy->model;
struct snd_pcm_runtime *runtime = substream->runtime;
const struct dummy_timer_ops *ops;
int err;
@ -912,7 +912,7 @@ static void print_formats(struct snd_dummy *dummy,
static void print_rates(struct snd_dummy *dummy,
struct snd_info_buffer *buffer)
{
static int rates[] = {
static const int rates[] = {
5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
64000, 88200, 96000, 176400, 192000,
};
@ -944,7 +944,7 @@ struct dummy_hw_field {
.offset = offsetof(struct snd_pcm_hardware, item), \
.size = sizeof(dummy_pcm_hardware.item) }
static struct dummy_hw_field fields[] = {
static const struct dummy_hw_field fields[] = {
FIELD_ENTRY(formats, "%#llx"),
FIELD_ENTRY(rates, "%#x"),
FIELD_ENTRY(rate_min, "%d"),
@ -1022,7 +1022,7 @@ static int snd_dummy_probe(struct platform_device *devptr)
{
struct snd_card *card;
struct snd_dummy *dummy;
struct dummy_model *m = NULL, **mdl;
const struct dummy_model *m = NULL, **mdl;
int idx, err;
int dev = devptr->id;