diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index bd00ac2cdc1b..0fa86a2afc26 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -94,8 +94,8 @@ int mmc_hs400_to_hs200(struct mmc_card *card);
 void mmc_register_pm_notifier(struct mmc_host *host);
 void mmc_unregister_pm_notifier(struct mmc_host *host);
 #else
-static void mmc_register_pm_notifier(struct mmc_host *host) { }
-static void mmc_unregister_pm_notifier(struct mmc_host *host) { }
+static inline void mmc_register_pm_notifier(struct mmc_host *host) { }
+static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { }
 #endif
 
 #endif