Commit d64e7f7c authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: dummy: More constifications 

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: default avatarTakashi Iwai <tiwai@suse.de>
parent 6b0f95c4

sound/drivers/dummy.c

+12 −12
Original line number Diff line number Diff line
@@ -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;