ALSA: pci: Constify snd_kcontrol_new items

Most of snd_kcontrol_new definitions are read-only and passed as-is.
Let's declare them as const for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Takashi Iwai <[e-mail]>

sound/pci/ak4531_codec.c

···
 static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);
 static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);
 
-static struct snd_kcontrol_new snd_ak4531_controls[] = {
+static const struct snd_kcontrol_new snd_ak4531_controls[] = {
 
 AK4531_DOUBLE_TLV("Master Playback Switch", 0,
 		  AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,

sound/pci/ali5451/ali5451.c

···
 	return change;
 }
 
-static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
+static const struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
 	/* spdif aplayback switch */
 	/* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
 	ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),

sound/pci/au88x0/au88x0_pcm.c

···
 }
 
 /* spdif controls */
-static struct snd_kcontrol_new snd_vortex_mixer_spdif[] = {
+static const struct snd_kcontrol_new snd_vortex_mixer_spdif[] = {
 	{
 		.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
 		.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),

sound/pci/azt3328.c

···
 	return (nreg != oreg);
 }
 
-static struct snd_kcontrol_new snd_azf3328_mixer_controls[] = {
+static const struct snd_kcontrol_new snd_azf3328_mixer_controls[] = {
 	AZF3328_MIXER_SWITCH("Master Playback Switch", IDX_MIXER_PLAY_MASTER, 15, 1),
 	AZF3328_MIXER_VOL_STEREO("Master Playback Volume", IDX_MIXER_PLAY_MASTER, 0x1f, 1),
 	AZF3328_MIXER_SWITCH("PCM Playback Switch", IDX_MIXER_WAVEOUT, 15, 1),

sound/pci/ca0106/ca0106_mixer.c

···
 	.private_value = ((chid) << 8) | (reg)			\
 }
 
-static struct snd_kcontrol_new snd_ca0106_volume_ctls[] = {
+static const struct snd_kcontrol_new snd_ca0106_volume_ctls[] = {
 	CA_VOLUME("Analog Front Playback Volume",
 		  CONTROL_FRONT_CHANNEL, PLAYBACK_VOLUME2),
         CA_VOLUME("Analog Rear Playback Volume",
···
 	.private_value = chid					\
 }
 
-static struct snd_kcontrol_new snd_ca0106_volume_i2c_adc_ctls[] = {
+static const struct snd_kcontrol_new snd_ca0106_volume_i2c_adc_ctls[] = {
         I2C_VOLUME("Phone Capture Volume", 0),
         I2C_VOLUME("Mic Capture Volume", 1),
         I2C_VOLUME("Line in Capture Volume", 2),

sound/pci/cmipci.c

···
 }
 
 
-static struct snd_kcontrol_new snd_cmipci_mixers[] = {
+static const struct snd_kcontrol_new snd_cmipci_mixers[] = {
 	CMIPCI_SB_VOL_STEREO("Master Playback Volume", SB_DSP4_MASTER_DEV, 3, 31),
 	CMIPCI_MIXER_SW_MONO("3D Control - Switch", CM_REG_MIXER1, CM_X3DEN_SHIFT, 0),
 	CMIPCI_SB_VOL_STEREO("PCM Playback Volume", SB_DSP4_PCM_DEV, 3, 31),
···
 }
 
 /* both for CM8338/8738 */
-static struct snd_kcontrol_new snd_cmipci_mixer_switches[] = {
+static const struct snd_kcontrol_new snd_cmipci_mixer_switches[] = {
 	DEFINE_MIXER_SWITCH("Four Channel Mode", fourch),
 	{
 		.name = "Line-In Mode",
···
 };
 
 /* for non-multichannel chips */
-static struct snd_kcontrol_new snd_cmipci_nomulti_switch =
+static const struct snd_kcontrol_new snd_cmipci_nomulti_switch =
 DEFINE_MIXER_SWITCH("Exchange DAC", exchange_dac);
 
 /* only for CM8738 */
-static struct snd_kcontrol_new snd_cmipci_8738_mixer_switches[] = {
+static const struct snd_kcontrol_new snd_cmipci_8738_mixer_switches[] = {
 #if 0 /* controlled in pcm device */
 	DEFINE_MIXER_SWITCH("IEC958 In Record", spdif_in),
 	DEFINE_MIXER_SWITCH("IEC958 Out", spdif_out),
···
 };
 
 /* only for model 033/037 */
-static struct snd_kcontrol_new snd_cmipci_old_mixer_switches[] = {
+static const struct snd_kcontrol_new snd_cmipci_old_mixer_switches[] = {
 	DEFINE_MIXER_SWITCH("IEC958 Mix Analog", spdif_dac_out),
 	DEFINE_MIXER_SWITCH("IEC958 In Phase Inverse", spdi_phase),
 	DEFINE_MIXER_SWITCH("IEC958 In Select", spdif_in_sel1),
 };
 
 /* only for model 039 or later */
-static struct snd_kcontrol_new snd_cmipci_extra_mixer_switches[] = {
+static const struct snd_kcontrol_new snd_cmipci_extra_mixer_switches[] = {
 	DEFINE_MIXER_SWITCH("IEC958 In Select", spdif_in_sel2),
 	DEFINE_MIXER_SWITCH("IEC958 In Phase Inverse", spdi_phase2),
 	{
···
 };
 
 /* card control switches */
-static struct snd_kcontrol_new snd_cmipci_modem_switch =
+static const struct snd_kcontrol_new snd_cmipci_modem_switch =
 DEFINE_CARD_SWITCH("Modem", modem);
 
 
 static int snd_cmipci_mixer_new(struct cmipci *cm, int pcm_spdif_device)
 {
 	struct snd_card *card;
-	struct snd_kcontrol_new *sw;
+	const struct snd_kcontrol_new *sw;
 	struct snd_kcontrol *kctl;
 	unsigned int idx;
 	int err;

sound/pci/cs46xx/cs46xx_lib.c

···
 #endif /* CONFIG_SND_CS46XX_NEW_DSP */
 
 
-static struct snd_kcontrol_new snd_cs46xx_controls[] = {
+static const struct snd_kcontrol_new snd_cs46xx_controls[] = {
 {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "DAC Volume",
···
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
 /* Only available on the Hercules Game Theater XP soundcard */
-static struct snd_kcontrol_new snd_hercules_controls[] = {
+static const struct snd_kcontrol_new snd_hercules_controls[] = {
 {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "Optical/Coaxial SPDIF Input Switch",

sound/pci/cs5535audio/cs5535audio_olpc.c

···
 	return 1;
 }
 
-static struct snd_kcontrol_new olpc_cs5535audio_ctls[] = {
+static const struct snd_kcontrol_new olpc_cs5535audio_ctls[] = {
 {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "DC Mode Enable",

sound/pci/emu10k1/emumixer.c

···
 	.private_value = chid					\
 }
 
-static struct snd_kcontrol_new snd_emu1010_output_enum_ctls[] = {
+static const struct snd_kcontrol_new snd_emu1010_output_enum_ctls[] = {
 	EMU1010_SOURCE_OUTPUT("Dock DAC1 Left Playback Enum", 0),
 	EMU1010_SOURCE_OUTPUT("Dock DAC1 Right Playback Enum", 1),
 	EMU1010_SOURCE_OUTPUT("Dock DAC2 Left Playback Enum", 2),
···
 
 
 /* 1616(m) cardbus */
-static struct snd_kcontrol_new snd_emu1616_output_enum_ctls[] = {
+static const struct snd_kcontrol_new snd_emu1616_output_enum_ctls[] = {
 	EMU1010_SOURCE_OUTPUT("Dock DAC1 Left Playback Enum", 0),
 	EMU1010_SOURCE_OUTPUT("Dock DAC1 Right Playback Enum", 1),
 	EMU1010_SOURCE_OUTPUT("Dock DAC2 Left Playback Enum", 2),
···
 	.private_value = chid					\
 }
 
-static struct snd_kcontrol_new snd_emu1010_input_enum_ctls[] = {
+static const struct snd_kcontrol_new snd_emu1010_input_enum_ctls[] = {
 	EMU1010_SOURCE_INPUT("DSP 0 Capture Enum", 0),
 	EMU1010_SOURCE_INPUT("DSP 1 Capture Enum", 1),
 	EMU1010_SOURCE_INPUT("DSP 2 Capture Enum", 2),
···
 	.private_value = chid					\
 }
 
-static struct snd_kcontrol_new snd_emu1010_adc_pads[] = {
+static const struct snd_kcontrol_new snd_emu1010_adc_pads[] = {
 	EMU1010_ADC_PADS("ADC1 14dB PAD Audio Dock Capture Switch", EMU_HANA_DOCK_ADC_PAD1),
 	EMU1010_ADC_PADS("ADC2 14dB PAD Audio Dock Capture Switch", EMU_HANA_DOCK_ADC_PAD2),
 	EMU1010_ADC_PADS("ADC3 14dB PAD Audio Dock Capture Switch", EMU_HANA_DOCK_ADC_PAD3),
···
 	.private_value = chid					\
 }
 
-static struct snd_kcontrol_new snd_emu1010_dac_pads[] = {
+static const struct snd_kcontrol_new snd_emu1010_dac_pads[] = {
 	EMU1010_DAC_PADS("DAC1 Audio Dock 14dB PAD Playback Switch", EMU_HANA_DOCK_DAC_PAD1),
 	EMU1010_DAC_PADS("DAC2 Audio Dock 14dB PAD Playback Switch", EMU_HANA_DOCK_DAC_PAD2),
 	EMU1010_DAC_PADS("DAC3 Audio Dock 14dB PAD Playback Switch", EMU_HANA_DOCK_DAC_PAD3),
···
 }
 
 
-static struct snd_kcontrol_new snd_audigy_i2c_volume_ctls[] = {
+static const struct snd_kcontrol_new snd_audigy_i2c_volume_ctls[] = {
 	I2C_VOLUME("Mic Capture Volume", 0),
 	I2C_VOLUME("Line Capture Volume", 0)
 };
···
 	return change;
 }
 
-static struct snd_kcontrol_new snd_audigy_spdif_output_rate =
+static const struct snd_kcontrol_new snd_audigy_spdif_output_rate =
 {
 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE,
 	.iface =        SNDRV_CTL_ELEM_IFACE_MIXER,

sound/pci/emu10k1/p16v.c

···
 	.private_value = ((xreg) | ((xhl) << 8)) \
 }
 
-static struct snd_kcontrol_new p16v_mixer_controls[] = {
+static const struct snd_kcontrol_new p16v_mixer_controls[] = {
 	P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
 	P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
 	P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),

sound/pci/ens1370.c

···
 
 
 /* spdif controls */
-static struct snd_kcontrol_new snd_es1371_mixer_spdif[] = {
+static const struct snd_kcontrol_new snd_es1371_mixer_spdif[] = {
 	ES1371_SPDIF(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH)),
 	{
 		.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
···
  * ENS1370 mixer
  */
 
-static struct snd_kcontrol_new snd_es1370_controls[2] = {
+static const struct snd_kcontrol_new snd_es1370_controls[2] = {
 ENSONIQ_CONTROL("PCM 0 Output also on Line-In Jack", ES_1370_XCTL0),
 ENSONIQ_CONTROL("Mic +5V bias", ES_1370_XCTL1)
 };

sound/pci/es1938.c

···
 
 static const DECLARE_TLV_DB_SCALE(db_scale_capture, 0, 150, 0);
 
-static struct snd_kcontrol_new snd_es1938_controls[] = {
+static const struct snd_kcontrol_new snd_es1938_controls[] = {
 ES1938_DOUBLE_TLV("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0,
 		  db_scale_master),
 ES1938_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),

sound/pci/fm801.c

···
 
 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
 
-static struct snd_kcontrol_new snd_fm801_controls[] = {
+static const struct snd_kcontrol_new snd_fm801_controls[] = {
 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
 		 db_scale_dsp),
 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
···
 
 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
 
-static struct snd_kcontrol_new snd_fm801_controls_multi[] = {
+static const struct snd_kcontrol_new snd_fm801_controls_multi[] = {
 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),

sound/pci/ice1712/aureon.c

···
  * mixers
  */
 
-static struct snd_kcontrol_new aureon_dac_controls[] = {
+static const struct snd_kcontrol_new aureon_dac_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
···
 	}
 };
 
-static struct snd_kcontrol_new wm_controls[] = {
+static const struct snd_kcontrol_new wm_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "PCM Playback Switch",
···
 	}
 };
 
-static struct snd_kcontrol_new ac97_controls[] = {
+static const struct snd_kcontrol_new ac97_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "AC97 Playback Switch",
···
 	}
 };
 
-static struct snd_kcontrol_new universe_ac97_controls[] = {
+static const struct snd_kcontrol_new universe_ac97_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "AC97 Playback Switch",
···
 
 };
 
-static struct snd_kcontrol_new cs8415_controls[] = {
+static const struct snd_kcontrol_new cs8415_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),

sound/pci/ice1712/delta.c

···
  * additional controls for M-Audio cards
  */
 
-static struct snd_kcontrol_new snd_ice1712_delta1010_wordclock_select =
+static const struct snd_kcontrol_new snd_ice1712_delta1010_wordclock_select =
 ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Sync", 0, ICE1712_DELTA_WORD_CLOCK_SELECT, 1, 0);
-static struct snd_kcontrol_new snd_ice1712_delta1010lt_wordclock_select =
+static const struct snd_kcontrol_new snd_ice1712_delta1010lt_wordclock_select =
 ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Sync", 0, ICE1712_DELTA_1010LT_WORDCLOCK, 0, 0);
-static struct snd_kcontrol_new snd_ice1712_delta1010_wordclock_status =
+static const struct snd_kcontrol_new snd_ice1712_delta1010_wordclock_status =
 ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Status", 0, ICE1712_DELTA_WORD_CLOCK_STATUS, 1, SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE);
-static struct snd_kcontrol_new snd_ice1712_deltadio2496_spdif_in_select =
+static const struct snd_kcontrol_new snd_ice1712_deltadio2496_spdif_in_select =
 ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "IEC958 Input Optical", 0, ICE1712_DELTA_SPDIF_INPUT_SELECT, 0, 0);
-static struct snd_kcontrol_new snd_ice1712_delta_spdif_in_status =
+static const struct snd_kcontrol_new snd_ice1712_delta_spdif_in_status =
 ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Delta IEC958 Input Status", 0, ICE1712_DELTA_SPDIF_IN_STAT, 1, SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE);
 
 

sound/pci/ice1712/ews.c

···
 	return val != nval;
 }
 
-static struct snd_kcontrol_new snd_ice1712_ewx2496_controls[] = {
+static const struct snd_kcontrol_new snd_ice1712_ewx2496_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Input Sensitivity Switch",
···
   .private_value = xshift | (xinvert << 8),\
 }
 
-static struct snd_kcontrol_new snd_ice1712_ews88d_controls[] = {
+static const struct snd_kcontrol_new snd_ice1712_ews88d_controls[] = {
 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "IEC958 Input Optical", 0, 1, 0), /* inverted */
 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT Output Optical", 1, 0, 0),
 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT External Master Clock", 2, 0, 0),
···
   .private_value = xshift | (xinvert << 8),\
 }
 
-static struct snd_kcontrol_new snd_ice1712_6fire_controls[] = {
+static const struct snd_kcontrol_new snd_ice1712_6fire_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Analog Input Select",

sound/pci/ice1712/ice1712.c

···
 
 static const DECLARE_TLV_DB_SCALE(db_scale_playback, -14400, 150, 0);
 
-static struct snd_kcontrol_new snd_ice1712_multi_playback_ctrls[] = {
+static const struct snd_kcontrol_new snd_ice1712_multi_playback_ctrls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Multi Playback Switch",

sound/pci/ice1712/juli.c

···
 	return 0;
 }
 
-static struct snd_kcontrol_new juli_mute_controls[] = {
+static const struct snd_kcontrol_new juli_mute_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",

sound/pci/ice1712/maya44.c

···
  * controls to be added
  */
 
-static struct snd_kcontrol_new maya_controls[] = {
+static const struct snd_kcontrol_new maya_controls[] = {
 	{
 		.name = "Crossmix Playback Volume",
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,

sound/pci/ice1712/phase.c

···
 static const DECLARE_TLV_DB_SCALE(db_scale_wm_dac, -12700, 100, 1);
 static const DECLARE_TLV_DB_SCALE(db_scale_wm_pcm, -6400, 50, 1);
 
-static struct snd_kcontrol_new phase28_dac_controls[] = {
+static const struct snd_kcontrol_new phase28_dac_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
···
 	}
 };
 
-static struct snd_kcontrol_new wm_controls[] = {
+static const struct snd_kcontrol_new wm_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "PCM Playback Switch",

sound/pci/ice1712/pontis.c

···
  * mixers
  */
 
-static struct snd_kcontrol_new pontis_controls[] = {
+static const struct snd_kcontrol_new pontis_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |

sound/pci/ice1712/prodigy192.c

···
  * mixers
  */
 
-static struct snd_kcontrol_new stac_controls[] = {
+static const struct snd_kcontrol_new stac_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
···
 }
 
 
-static struct snd_kcontrol_new ak4114_controls[] = {
+static const struct snd_kcontrol_new ak4114_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "MIODIO IEC958 Capture Input",

sound/pci/ice1712/prodigy_hifi.c

···
 static const DECLARE_TLV_DB_SCALE(db_scale_wm_dac, -12700, 100, 1);
 static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0);
 
-static struct snd_kcontrol_new prodigy_hd2_controls[] = {
+static const struct snd_kcontrol_new prodigy_hd2_controls[] = {
     {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
···
  * mixers
  */
 
-static struct snd_kcontrol_new prodigy_hifi_controls[] = {
+static const struct snd_kcontrol_new prodigy_hifi_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |

sound/pci/ice1712/quartet.c

···
 	.put = qtet_sw_put,\
 	.private_value = xpriv }
 
-static struct snd_kcontrol_new qtet_controls[] = {
+static const struct snd_kcontrol_new qtet_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",

sound/pci/ice1712/wtm.c

···
 /*
  * Control tabs
  */
-static struct snd_kcontrol_new stac9640_controls[] = {
+static const struct snd_kcontrol_new stac9640_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |

sound/pci/korg1212/korg1212.c

···
 		.private_value = ord,								\
         }
 
-static struct snd_kcontrol_new snd_korg1212_controls[] = {
+static const struct snd_kcontrol_new snd_korg1212_controls[] = {
         MON_MIXER(8, "Analog"),
 	MON_MIXER(10, "SPDIF"), 
         MON_MIXER(0, "ADAT-1"), MON_MIXER(1, "ADAT-2"), MON_MIXER(2, "ADAT-3"), MON_MIXER(3, "ADAT-4"),

sound/pci/rme32.c

···
 	return 0;
 }
 
-static struct snd_kcontrol_new snd_rme32_controls[] = {
+static const struct snd_kcontrol_new snd_rme32_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
 		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),

sound/pci/rme96.c

···
         return change;
 }
 
-static struct snd_kcontrol_new snd_rme96_controls[] = {
+static const struct snd_kcontrol_new snd_rme96_controls[] = {
 {
 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),

sound/pci/rme9652/hdsp.c

···
 	return change;
 }
 
-static struct snd_kcontrol_new snd_hdsp_9632_controls[] = {
+static const struct snd_kcontrol_new snd_hdsp_9632_controls[] = {
 HDSP_DA_GAIN("DA Gain", 0),
 HDSP_AD_GAIN("AD Gain", 0),
 HDSP_PHONE_GAIN("Phones Gain", 0),
···
 HDSP_DDS_OFFSET("DDS Sample Rate Offset", 0)
 };
 
-static struct snd_kcontrol_new snd_hdsp_controls[] = {
+static const struct snd_kcontrol_new snd_hdsp_controls[] = {
 {
 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
···
 	return snd_ctl_enum_info(uinfo, 1, 2, texts);
 }
 
-static struct snd_kcontrol_new snd_hdsp_rpm_controls[] = {
+static const struct snd_kcontrol_new snd_hdsp_rpm_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "RPM Bypass",
···
 	HDSP_MIXER("Mixer", 0)
 };
 
-static struct snd_kcontrol_new snd_hdsp_96xx_aeb =
+static const struct snd_kcontrol_new snd_hdsp_96xx_aeb =
 	HDSP_TOGGLE_SETTING("Analog Extension Board",
 			HDSP_AnalogExtensionBoard);
 static struct snd_kcontrol_new snd_hdsp_adat_sync_check = HDSP_ADAT_SYNC_CHECK;

sound/pci/rme9652/hdspm.c

···
 
 
 
-static struct snd_kcontrol_new snd_hdspm_controls_madi[] = {
+static const struct snd_kcontrol_new snd_hdspm_controls_madi[] = {
 	HDSPM_MIXER("Mixer", 0),
 	HDSPM_INTERNAL_CLOCK("Internal Clock", 0),
 	HDSPM_SYSTEM_CLOCK_MODE("System Clock Mode", 0),
···
 };
 
 
-static struct snd_kcontrol_new snd_hdspm_controls_madiface[] = {
+static const struct snd_kcontrol_new snd_hdspm_controls_madiface[] = {
 	HDSPM_MIXER("Mixer", 0),
 	HDSPM_INTERNAL_CLOCK("Internal Clock", 0),
 	HDSPM_SYSTEM_CLOCK_MODE("System Clock Mode", 0),
···
 	HDSPM_MADI_SPEEDMODE("MADI Speed Mode", 0)
 };
 
-static struct snd_kcontrol_new snd_hdspm_controls_aio[] = {
+static const struct snd_kcontrol_new snd_hdspm_controls_aio[] = {
 	HDSPM_MIXER("Mixer", 0),
 	HDSPM_INTERNAL_CLOCK("Internal Clock", 0),
 	HDSPM_SYSTEM_CLOCK_MODE("System Clock Mode", 0),
···
 		   */
 };
 
-static struct snd_kcontrol_new snd_hdspm_controls_raydat[] = {
+static const struct snd_kcontrol_new snd_hdspm_controls_raydat[] = {
 	HDSPM_MIXER("Mixer", 0),
 	HDSPM_INTERNAL_CLOCK("Internal Clock", 0),
 	HDSPM_SYSTEM_CLOCK_MODE("Clock Mode", 0),
···
 	HDSPM_TOGGLE_SETTING("Single Speed WordClock Out", HDSPM_c0_Wck48)
 };
 
-static struct snd_kcontrol_new snd_hdspm_controls_aes32[] = {
+static const struct snd_kcontrol_new snd_hdspm_controls_aes32[] = {
 	HDSPM_MIXER("Mixer", 0),
 	HDSPM_INTERNAL_CLOCK("Internal Clock", 0),
 	HDSPM_SYSTEM_CLOCK_MODE("System Clock Mode", 0),
···
 
 
 /* Control elements for the optional TCO module */
-static struct snd_kcontrol_new snd_hdspm_controls_tco[] = {
+static const struct snd_kcontrol_new snd_hdspm_controls_tco[] = {
 	HDSPM_TCO_SAMPLE_RATE("TCO Sample Rate", 0),
 	HDSPM_TCO_PULL("TCO Pull", 0),
 	HDSPM_TCO_WCK_CONVERSION("TCO WCK Conversion", 0),
···
 	unsigned int idx, limit;
 	int err;
 	struct snd_kcontrol *kctl;
-	struct snd_kcontrol_new *list = NULL;
+	const struct snd_kcontrol_new *list = NULL;
 
 	switch (hdspm->io_type) {
 	case MADI:

sound/pci/rme9652/rme9652.c

···
 
 #endif				/* ALSA_HAS_STANDARD_WAY_OF_RETURNING_TIMECODE */
 
-static struct snd_kcontrol_new snd_rme9652_controls[] = {
+static const struct snd_kcontrol_new snd_rme9652_controls[] = {
 {
 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
···
 RME9652_PASSTHRU("Passthru", 0)
 };
 
-static struct snd_kcontrol_new snd_rme9652_adat3_check =
+static const struct snd_kcontrol_new snd_rme9652_adat3_check =
 RME9652_ADAT_SYNC("ADAT3 Sync Check", 0, 2);
 
-static struct snd_kcontrol_new snd_rme9652_adat1_input =
+static const struct snd_kcontrol_new snd_rme9652_adat1_input =
 RME9652_ADAT1_IN("ADAT1 Input Source", 0);
 
 static int snd_rme9652_create_controls(struct snd_card *card, struct snd_rme9652 *rme9652)

sound/pci/sonicvibes.c

···
 	return change;
 }
 
-static struct snd_kcontrol_new snd_sonicvibes_controls[] = {
+static const struct snd_kcontrol_new snd_sonicvibes_controls[] = {
 SONICVIBES_DOUBLE("Capture Volume", 0, SV_IREG_LEFT_ADC, SV_IREG_RIGHT_ADC, 0, 0, 15, 0),
 SONICVIBES_DOUBLE("Aux Playback Switch", 0, SV_IREG_LEFT_AUX1, SV_IREG_RIGHT_AUX1, 7, 7, 1, 1),
 SONICVIBES_DOUBLE("Aux Playback Volume", 0, SV_IREG_LEFT_AUX1, SV_IREG_RIGHT_AUX1, 0, 0, 31, 1),
···
  */
 
 #ifdef SUPPORT_JOYSTICK
-static struct snd_kcontrol_new snd_sonicvibes_game_control =
+static const struct snd_kcontrol_new snd_sonicvibes_game_control =
 SONICVIBES_SINGLE("Joystick Speed", 0, SV_IREG_GAME_PORT, 1, 15, 0);
 
 static int snd_sonicvibes_create_gameport(struct sonicvibes *sonic)
···
  *  MIDI section
  */
 
-static struct snd_kcontrol_new snd_sonicvibes_midi_controls[] = {
+static const struct snd_kcontrol_new snd_sonicvibes_midi_controls[] = {
 SONICVIBES_SINGLE("SonicVibes Wave Source RAM", 0, SV_IREG_WAVE_SOURCE, 0, 1, 0),
 SONICVIBES_SINGLE("SonicVibes Wave Source RAM+ROM", 0, SV_IREG_WAVE_SOURCE, 1, 1, 0),
 SONICVIBES_SINGLE("SonicVibes Onboard Synth", 0, SV_IREG_MPU401, 0, 1, 0),

sound/pci/ymfpci/ymfpci_main.c

···
 	.put = snd_ymfpci_put_dup4ch,
 };
 
-static struct snd_kcontrol_new snd_ymfpci_controls[] = {
+static const struct snd_kcontrol_new snd_ymfpci_controls[] = {
 {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "Wave Playback Volume",