diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 2a2173d953f584d283eecc7845147e88d152435e..68cf41747fa56f414ce20f985299b3cf38487f3c 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -75,7 +75,7 @@ struct sdhci_acpi_host {
 	bool				use_runtime_pm;
 	bool				is_intel;
 	bool				reset_signal_volt_on_suspend;
-	unsigned long			private[0] ____cacheline_aligned;
+	unsigned long			private[] ____cacheline_aligned;
 };
 
 enum {
diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
index e573495f872660597b0e96414d0cf501cd8551d3..6da6d4fb5edd79f7eba922b3d2b4bb350b54cbec 100644
--- a/drivers/mmc/host/sdhci-cadence.c
+++ b/drivers/mmc/host/sdhci-cadence.c
@@ -68,7 +68,7 @@ struct sdhci_cdns_priv {
 	void __iomem *hrs_addr;
 	bool enhanced_strobe;
 	unsigned int nr_phy_params;
-	struct sdhci_cdns_phy_param phy_params[0];
+	struct sdhci_cdns_phy_param phy_params[];
 };
 
 struct sdhci_cdns_phy_cfg {
diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h
index 981bbbe63aff52265a167a8ea6a173d73eeaf44a..42ccd123b04689e6e1d88632f0b00bce705ef223 100644
--- a/drivers/mmc/host/sdhci-pci.h
+++ b/drivers/mmc/host/sdhci-pci.h
@@ -163,7 +163,7 @@ struct sdhci_pci_slot {
 	bool			cd_override_level;
 
 	void (*hw_reset)(struct sdhci_host *host);
-	unsigned long		private[0] ____cacheline_aligned;
+	unsigned long		private[] ____cacheline_aligned;
 };
 
 struct sdhci_pci_chip {
diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index 2af445b8c325bd298f9d109eebb132a0f11b7b72..6301b81cf5731b871e1c7d1523e18583d20f0c63 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h
@@ -25,7 +25,7 @@ struct sdhci_pltfm_host {
 	unsigned int clock;
 	u16 xfer_mode_shadow;
 
-	unsigned long private[0] ____cacheline_aligned;
+	unsigned long private[] ____cacheline_aligned;
 };
 
 #ifdef CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index cac2d97782e62deb0dbc08429aa00f7c91cc7419..249635692112ae1ff9b408e0419ae28aefee523a 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -614,7 +614,7 @@ struct sdhci_host {
 
 	u64			data_timeout;
 
-	unsigned long private[0] ____cacheline_aligned;
+	unsigned long private[] ____cacheline_aligned;
 };
 
 struct sdhci_ops {
diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index 6ced1b7f642fcca59513f98c3cc4df2112f67113..a5a90d133f1f327d6fd7be6e00f736eaba12539d 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -95,7 +95,7 @@ struct sd_response_header {
 	u8 port_number;
 	u8 command_type;
 	u8 command_index;
-	u8 command_response[0];
+	u8 command_response[];
 } __packed;
 
 struct sd_status_header {
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index f5db24a6a860801fba6c255aaaa6a11d6e261b08..c318fb5b6a94180926b49bc18920076289226ee5 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -468,7 +468,7 @@ struct mmc_host {
 	/* Host Software Queue support */
 	bool			hsq_enabled;
 
-	unsigned long		private[0] ____cacheline_aligned;
+	unsigned long		private[] ____cacheline_aligned;
 };
 
 struct device_node;
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
index 5a177f7a83c3acc75b1e93daf2ddf9534be9285d..fa2aaab5e57aa5a74cda147a2598a506e0fb4904 100644
--- a/include/linux/mmc/sdio_func.h
+++ b/include/linux/mmc/sdio_func.h
@@ -25,7 +25,7 @@ struct sdio_func_tuple {
 	struct sdio_func_tuple *next;
 	unsigned char code;
 	unsigned char size;
-	unsigned char data[0];
+	unsigned char data[];
 };
 
 /*
diff --git a/include/uapi/linux/mmc/ioctl.h b/include/uapi/linux/mmc/ioctl.h
index 00c08120f3ba60c2719458fd8903dd953744a1df..98e29e7f54ace2f7ca13b1dfd5c337976b2192d9 100644
--- a/include/uapi/linux/mmc/ioctl.h
+++ b/include/uapi/linux/mmc/ioctl.h
@@ -57,7 +57,7 @@ struct mmc_ioc_cmd {
  */
 struct mmc_ioc_multi_cmd {
 	__u64 num_of_cmds;
-	struct mmc_ioc_cmd cmds[0];
+	struct mmc_ioc_cmd cmds[];
 };
 
 #define MMC_IOC_CMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_cmd)