diff --git a/drivers/staging/mt7621-mmc/sd.c b/drivers/staging/mt7621-mmc/sd.c
index 9e00f86a0398..0f9cba918586 100644
--- a/drivers/staging/mt7621-mmc/sd.c
+++ b/drivers/staging/mt7621-mmc/sd.c
@@ -149,7 +149,6 @@ static int msdc_rsp[] = {
 
 #define msdc_txfifocnt()   ((sdr_read32(MSDC_FIFOCS) & MSDC_FIFOCS_TXCNT) >> 16)
 #define msdc_rxfifocnt()   ((sdr_read32(MSDC_FIFOCS) & MSDC_FIFOCS_RXCNT) >> 0)
-#define msdc_fifo_read32()   sdr_read32(MSDC_RXDATA)
 
 #define msdc_dma_on()        sdr_clr_bits(MSDC_CFG, MSDC_CFG_PIO)