fix: unused parameter warning

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

src/drivers/sd_diskio.c

@@ -74,6 +74,7 @@ const Diskio_drvTypeDef SD_Driver =
 /* Private functions ---------------------------------------------------------*/
 static DSTATUS SD_CheckStatus(BYTE lun)
 {
+ (void)lun;
  Stat = STA_NOINIT;
 
  if(BSP_SD_GetCardState() == MSD_OK)
@@ -125,6 +126,7 @@ DSTATUS SD_status(BYTE lun)
  */
 DRESULT SD_read(BYTE lun, BYTE *buff, DWORD sector, UINT count)
 {
+ (void)lun;
  DRESULT res = RES_ERROR;
 
  if(BSP_SD_ReadBlocks((uint32_t*)buff,
@@ -152,6 +154,7 @@ DRESULT SD_read(BYTE lun, BYTE *buff, DWORD sector, UINT count)
 #if _USE_WRITE == 1
 DRESULT SD_write(BYTE lun, const BYTE *buff, DWORD sector, UINT count)
 {
+ (void)lun;
  DRESULT res = RES_ERROR;
 
  if(BSP_SD_WriteBlocks((uint32_t*)buff,
@@ -179,6 +182,7 @@ DRESULT SD_write(BYTE lun, const BYTE *buff, DWORD sector, UINT count)
 #if _USE_IOCTL == 1
 DRESULT SD_ioctl(BYTE lun, BYTE cmd, void *buff)
 {
+ (void)lun;
  DRESULT res = RES_ERROR;
  BSP_SD_CardInfo CardInfo;
 

src/ff_gen_drv.c

@@ -79,6 +79,7 @@ uint8_t FATFS_LinkDriver(const Diskio_drvTypeDef *drv, char *path)
  */
 uint8_t FATFS_UnLinkDriverEx(char *path, uint8_t lun)
 {
+ (void)lun;
  uint8_t DiskNum = 0;
  uint8_t ret = 1;