diff --git a/drivers/usb/misc/sisusbvga/sisusb_init.h b/drivers/usb/misc/sisusbvga/sisusb_init.h
index aa33bc81ee526..927956d33e4d1 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_init.h
+++ b/drivers/usb/misc/sisusbvga/sisusb_init.h
@@ -148,29 +148,29 @@
 #define SIS_CRT2_PORT_04	0x04 - 0x30
 
 /* Mode numbers */
-static const unsigned short ModeIndex_320x200[] = { 0x59, 0x41, 0x00, 0x4f };
-static const unsigned short ModeIndex_320x240[] = { 0x50, 0x56, 0x00, 0x53 };
-static const unsigned short ModeIndex_400x300[] = { 0x51, 0x57, 0x00, 0x54 };
-static const unsigned short ModeIndex_512x384[] = { 0x52, 0x58, 0x00, 0x5c };
-static const unsigned short ModeIndex_640x400[] = { 0x2f, 0x5d, 0x00, 0x5e };
-static const unsigned short ModeIndex_640x480[] = { 0x2e, 0x44, 0x00, 0x62 };
-static const unsigned short ModeIndex_720x480[] = { 0x31, 0x33, 0x00, 0x35 };
-static const unsigned short ModeIndex_720x576[] = { 0x32, 0x34, 0x00, 0x36 };
-static const unsigned short ModeIndex_768x576[] = { 0x5f, 0x60, 0x00, 0x61 };
-static const unsigned short ModeIndex_800x480[] = { 0x70, 0x7a, 0x00, 0x76 };
-static const unsigned short ModeIndex_800x600[] = { 0x30, 0x47, 0x00, 0x63 };
-static const unsigned short ModeIndex_848x480[] = { 0x39, 0x3b, 0x00, 0x3e };
-static const unsigned short ModeIndex_856x480[] = { 0x3f, 0x42, 0x00, 0x45 };
-static const unsigned short ModeIndex_960x540[] = { 0x1d, 0x1e, 0x00, 0x1f };
-static const unsigned short ModeIndex_960x600[] = { 0x20, 0x21, 0x00, 0x22 };
-static const unsigned short ModeIndex_1024x768[] = { 0x38, 0x4a, 0x00, 0x64 };
-static const unsigned short ModeIndex_1024x576[] = { 0x71, 0x74, 0x00, 0x77 };
-static const unsigned short ModeIndex_1152x864[] = { 0x29, 0x2a, 0x00, 0x2b };
-static const unsigned short ModeIndex_1280x720[] = { 0x79, 0x75, 0x00, 0x78 };
-static const unsigned short ModeIndex_1280x768[] = { 0x23, 0x24, 0x00, 0x25 };
-static const unsigned short ModeIndex_1280x1024[] = { 0x3a, 0x4d, 0x00, 0x65 };
+static const unsigned short __maybe_unused ModeIndex_320x200[] = { 0x59, 0x41, 0x00, 0x4f };
+static const unsigned short __maybe_unused ModeIndex_320x240[] = { 0x50, 0x56, 0x00, 0x53 };
+static const unsigned short __maybe_unused ModeIndex_400x300[] = { 0x51, 0x57, 0x00, 0x54 };
+static const unsigned short __maybe_unused ModeIndex_512x384[] = { 0x52, 0x58, 0x00, 0x5c };
+static const unsigned short __maybe_unused ModeIndex_640x400[] = { 0x2f, 0x5d, 0x00, 0x5e };
+static const unsigned short __maybe_unused ModeIndex_640x480[] = { 0x2e, 0x44, 0x00, 0x62 };
+static const unsigned short __maybe_unused ModeIndex_720x480[] = { 0x31, 0x33, 0x00, 0x35 };
+static const unsigned short __maybe_unused ModeIndex_720x576[] = { 0x32, 0x34, 0x00, 0x36 };
+static const unsigned short __maybe_unused ModeIndex_768x576[] = { 0x5f, 0x60, 0x00, 0x61 };
+static const unsigned short __maybe_unused ModeIndex_800x480[] = { 0x70, 0x7a, 0x00, 0x76 };
+static const unsigned short __maybe_unused ModeIndex_800x600[] = { 0x30, 0x47, 0x00, 0x63 };
+static const unsigned short __maybe_unused ModeIndex_848x480[] = { 0x39, 0x3b, 0x00, 0x3e };
+static const unsigned short __maybe_unused ModeIndex_856x480[] = { 0x3f, 0x42, 0x00, 0x45 };
+static const unsigned short __maybe_unused ModeIndex_960x540[] = { 0x1d, 0x1e, 0x00, 0x1f };
+static const unsigned short __maybe_unused ModeIndex_960x600[] = { 0x20, 0x21, 0x00, 0x22 };
+static const unsigned short __maybe_unused ModeIndex_1024x768[] = { 0x38, 0x4a, 0x00, 0x64 };
+static const unsigned short __maybe_unused ModeIndex_1024x576[] = { 0x71, 0x74, 0x00, 0x77 };
+static const unsigned short __maybe_unused ModeIndex_1152x864[] = { 0x29, 0x2a, 0x00, 0x2b };
+static const unsigned short __maybe_unused ModeIndex_1280x720[] = { 0x79, 0x75, 0x00, 0x78 };
+static const unsigned short __maybe_unused ModeIndex_1280x768[] = { 0x23, 0x24, 0x00, 0x25 };
+static const unsigned short __maybe_unused ModeIndex_1280x1024[] = { 0x3a, 0x4d, 0x00, 0x65 };
 
-static const unsigned char SiS_MDA_DAC[] = {
+static const unsigned char __maybe_unused SiS_MDA_DAC[] = {
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 	0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15,
 	0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15,
@@ -181,7 +181,7 @@ static const unsigned char SiS_MDA_DAC[] = {
 	0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F
 };
 
-static const unsigned char SiS_CGA_DAC[] = {
+static const unsigned char __maybe_unused SiS_CGA_DAC[] = {
 	0x00, 0x10, 0x04, 0x14, 0x01, 0x11, 0x09, 0x15,
 	0x00, 0x10, 0x04, 0x14, 0x01, 0x11, 0x09, 0x15,
 	0x2A, 0x3A, 0x2E, 0x3E, 0x2B, 0x3B, 0x2F, 0x3F,
@@ -192,7 +192,7 @@ static const unsigned char SiS_CGA_DAC[] = {
 	0x2A, 0x3A, 0x2E, 0x3E, 0x2B, 0x3B, 0x2F, 0x3F
 };
 
-static const unsigned char SiS_EGA_DAC[] = {
+static const unsigned char __maybe_unused SiS_EGA_DAC[] = {
 	0x00, 0x10, 0x04, 0x14, 0x01, 0x11, 0x05, 0x15,
 	0x20, 0x30, 0x24, 0x34, 0x21, 0x31, 0x25, 0x35,
 	0x08, 0x18, 0x0C, 0x1C, 0x09, 0x19, 0x0D, 0x1D,
@@ -203,7 +203,7 @@ static const unsigned char SiS_EGA_DAC[] = {
 	0x2A, 0x3A, 0x2E, 0x3E, 0x2B, 0x3B, 0x2F, 0x3F
 };
 
-static const unsigned char SiS_VGA_DAC[] = {
+static const unsigned char __maybe_unused SiS_VGA_DAC[] = {
 	0x00, 0x10, 0x04, 0x14, 0x01, 0x11, 0x09, 0x15,
 	0x2A, 0x3A, 0x2E, 0x3E, 0x2B, 0x3B, 0x2F, 0x3F,
 	0x00, 0x05, 0x08, 0x0B, 0x0E, 0x11, 0x14, 0x18,
@@ -216,12 +216,12 @@ static const unsigned char SiS_VGA_DAC[] = {
 	0x0B, 0x0C, 0x0D, 0x0F, 0x10
 };
 
-static const struct SiS_St SiSUSB_SModeIDTable[] = {
+static const struct SiS_St __maybe_unused SiSUSB_SModeIDTable[] = {
 	{0x03, 0x0010, 0x18, 0x02, 0x02, 0x00, 0x01, 0x03, 0x40},
 	{0xff, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
 };
 
-static const struct SiS_StResInfo_S SiSUSB_StResInfo[] = {
+static const struct SiS_StResInfo_S __maybe_unused SiSUSB_StResInfo[] = {
 	{640, 400},
 	{640, 350},
 	{720, 400},
@@ -229,7 +229,7 @@ static const struct SiS_StResInfo_S SiSUSB_StResInfo[] = {
 	{640, 480}
 };
 
-static const struct SiS_ModeResInfo SiSUSB_ModeResInfo[] = {
+static const struct SiS_ModeResInfo __maybe_unused SiSUSB_ModeResInfo[] = {
 	{320, 200, 8, 8},	/* 0x00 */
 	{320, 240, 8, 8},	/* 0x01 */
 	{320, 400, 8, 8},	/* 0x02 */
@@ -266,7 +266,7 @@ static const struct SiS_ModeResInfo SiSUSB_ModeResInfo[] = {
 	{960, 600, 8, 16}	/* 0x21 */
 };
 
-static const struct SiS_StandTable SiSUSB_StandTable[] = {
+static const struct SiS_StandTable __maybe_unused SiSUSB_StandTable[] = {
 	/* MD_3_400 - mode 0x03 - 400 */
 	{
 	 0x50, 0x18, 0x10, 0x1000,
@@ -297,7 +297,7 @@ static const struct SiS_StandTable SiSUSB_StandTable[] = {
 	 }
 };
 
-static const struct SiS_Ext SiSUSB_EModeIDTable[] = {
+static const struct SiS_Ext __maybe_unused SiSUSB_EModeIDTable[] = {
 	{0x2e, 0x0a1b, 0x0101, SIS_RI_640x480, 0x00, 0x00, 0x05, 0x05, 0x08, 2},	/* 640x480x8 */
 	{0x2f, 0x0a1b, 0x0100, SIS_RI_640x400, 0x00, 0x00, 0x05, 0x05, 0x10, 0},	/* 640x400x8 */
 	{0x30, 0x2a1b, 0x0103, SIS_RI_800x600, 0x00, 0x00, 0x07, 0x06, 0x00, 3},	/* 800x600x8 */
@@ -376,7 +376,7 @@ static const struct SiS_Ext SiSUSB_EModeIDTable[] = {
 	{0xff, 0x0000, 0x0000, 0, 0x00, 0x00, 0x00, 0x00, 0x00, -1}
 };
 
-static const struct SiS_Ext2 SiSUSB_RefIndex[] = {
+static const struct SiS_Ext2 __maybe_unused SiSUSB_RefIndex[] = {
 	{0x085f, 0x0d, 0x03, 0x05, 0x05, 0x30, 800, 600, 0x40, 0x00, 0x00},	/* 0x0 */
 	{0x0067, 0x0e, 0x04, 0x05, 0x05, 0x30, 800, 600, 0x40, 0x00, 0x00},	/* 0x1 */
 	{0x0067, 0x0f, 0x08, 0x48, 0x05, 0x30, 800, 600, 0x40, 0x00, 0x00},	/* 0x2 */
@@ -434,7 +434,7 @@ static const struct SiS_Ext2 SiSUSB_RefIndex[] = {
 	{0xffff, 0x00, 0x00, 0x00, 0x00, 0x00, 0, 0, 0, 0x00, 0x00}
 };
 
-static const struct SiS_CRT1Table SiSUSB_CRT1Table[] = {
+static const struct SiS_CRT1Table __maybe_unused SiSUSB_CRT1Table[] = {
 	{{0x2d, 0x27, 0x28, 0x90, 0x2c, 0x80, 0xbf, 0x1f,
 	  0x9c, 0x8e, 0x8f, 0x96, 0xb9, 0x30, 0x00, 0x00,
 	  0x00}},		/* 0x0 */
@@ -692,7 +692,7 @@ static const struct SiS_CRT1Table SiSUSB_CRT1Table[] = {
 	  0x41}}		/* 0x54 */
 };
 
-static const struct SiS_VCLKData SiSUSB_VCLKData[] = {
+static const struct SiS_VCLKData __maybe_unused SiSUSB_VCLKData[] = {
 	{0x1b, 0xe1, 25},	/* 0x00 */
 	{0x4e, 0xe4, 28},	/* 0x01 */
 	{0x57, 0xe4, 31},	/* 0x02 */
