diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index e3df1f7..a26f3ce 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -21,7 +21,7 @@
 static struct list_head mmc_devices;
 static int cur_dev_num = -1;
 
-int __weak board_mmc_getwp(struct mmc *mmc)
+__weak int board_mmc_getwp(struct mmc *mmc)
 {
 	return -1;
 }
@@ -375,7 +375,7 @@
 	return 0;
 }
 
-int mmc_send_op_cond(struct mmc *mmc)
+static int mmc_send_op_cond(struct mmc *mmc)
 {
 	struct mmc_cmd cmd;
 	int err, i;
@@ -397,7 +397,7 @@
 	return IN_PROGRESS;
 }
 
-int mmc_complete_op_cond(struct mmc *mmc)
+static int mmc_complete_op_cond(struct mmc *mmc)
 {
 	struct mmc_cmd cmd;
 	int timeout = 1000;