diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 142c0f9485fe..42001c49833b 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -420,8 +420,9 @@ read_pri_intelext(struct map_info *map, __u16 adr)
 		extra_size = 0;
 
 		/* Protection Register info */
-		extra_size += (extp->NumProtectionFields - 1) *
-			      sizeof(struct cfi_intelext_otpinfo);
+		if (extp->NumProtectionFields)
+			extra_size += (extp->NumProtectionFields - 1) *
+				      sizeof(struct cfi_intelext_otpinfo);
 	}
 
 	if (extp->MinorVersion >= '1') {
@@ -695,14 +696,16 @@ static int cfi_intelext_partition_fixup(struct mtd_info *mtd,
 	 */
 	if (extp && extp->MajorVersion == '1' && extp->MinorVersion >= '3'
 	    && extp->FeatureSupport & (1 << 9)) {
+		int offs = 0;
 		struct cfi_private *newcfi;
 		struct flchip *chip;
 		struct flchip_shared *shared;
-		int offs, numregions, numparts, partshift, numvirtchips, i, j;
+		int numregions, numparts, partshift, numvirtchips, i, j;
 
 		/* Protection Register info */
-		offs = (extp->NumProtectionFields - 1) *
-		       sizeof(struct cfi_intelext_otpinfo);
+		if (extp->NumProtectionFields)
+			offs = (extp->NumProtectionFields - 1) *
+			       sizeof(struct cfi_intelext_otpinfo);
 
 		/* Burst Read info */
 		offs += extp->extra[offs+1]+2;
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index c98a21108688..fd1ecb821106 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -138,7 +138,7 @@ struct cfi_ident {
 	uint16_t InterfaceDesc;
 	uint16_t MaxBufWriteSize;
 	uint8_t  NumEraseRegions;
-	uint32_t EraseRegionInfo[0]; /* Not host ordered */
+	uint32_t EraseRegionInfo[]; /* Not host ordered */
 } __packed;
 
 /* Extended Query Structure for both PRI and ALT */
@@ -165,7 +165,7 @@ struct cfi_pri_intelext {
 	uint16_t ProtRegAddr;
 	uint8_t  FactProtRegSize;
 	uint8_t  UserProtRegSize;
-	uint8_t  extra[0];
+	uint8_t  extra[];
 } __packed;
 
 struct cfi_intelext_otpinfo {
@@ -286,7 +286,7 @@ struct cfi_private {
 	map_word sector_erase_cmd;
 	unsigned long chipshift; /* Because they're of the same type */
 	const char *im_name;	 /* inter_module name for cmdset_setup */
-	struct flchip chips[0];  /* per-chip data structure for each chip */
+	struct flchip chips[];  /* per-chip data structure for each chip */
 };
 
 uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs,
diff --git a/include/linux/mtd/qinfo.h b/include/linux/mtd/qinfo.h
index df5b9fddea16..2e3f43788d48 100644
--- a/include/linux/mtd/qinfo.h
+++ b/include/linux/mtd/qinfo.h
@@ -24,7 +24,7 @@ struct lpddr_private {
 	struct qinfo_chip *qinfo;
 	int numchips;
 	unsigned long chipshift;
-	struct flchip chips[0];
+	struct flchip chips[];
 };
 
 /* qinfo_query_info structure contains request information for