diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 5bca1a3..82259ca 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -2902,7 +2902,8 @@
  * Return: Zero if successful, or a negative error code on failure.
  */
 
-int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
+int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
+			   const struct ac97_quirk *quirk, const char *override)
 {
 	int result;
 
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 850a8c9..66ddd98 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -747,7 +747,7 @@
 		snd_info_set_text_ops(entry, chip, snd_ad1889_proc_read);
 }
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 	{
 		.subvendor = 0x11d4,	/* AD */
 		.subdevice = 0x1889,	/* AD1889 */
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index d5f15c9..42a20c8 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1390,7 +1390,7 @@
  * ac97 mixer section
  */
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 	{
 		.subvendor = 0x103c,
 		.subdevice = 0x006b,
diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
index 802c33f..963b912 100644
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -43,7 +43,7 @@
 module_param(ac97_quirk, charp, 0444);
 MODULE_PARM_DESC(ac97_quirk, "AC'97 board specific workarounds.");
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 #if 0 /* Not yet confirmed if all 5536 boards are HP only */
 	{
 		.subvendor = PCI_VENDOR_ID_AMD, 
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 2c5484e..749069a 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -1795,7 +1795,7 @@
 	},
 };
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
         {
 		.subvendor = 0x0e11,
 		.subdevice = 0x000e,
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 8622283..3dd038b 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1812,7 +1812,7 @@
 	chip->ac97 = NULL;
 }
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 	{
 		.subvendor = 0x1106,
 		.subdevice = 0x4161,