scsi: ufs: fix endianness sparse warnings

Fix many warnings with incorrect endian assumptions
which makes the code unportable to new architectures.

The UFS specification defines the byte order as big-endian
for UPIU structure and little-endian for the host controller
transfer/task management descriptors.

Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Acked-by: Vinayak Holikatti <vinholikatti@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/scsi/ufs/ufshci.h

@@ -304,10 +304,10 @@ enum {
  * @size: size of physical segment DW-3
  */
 struct ufshcd_sg_entry {
-	u32    base_addr;
-	u32    upper_addr;
-	u32    reserved;
-	u32    size;
+	__le32    base_addr;
+	__le32    upper_addr;
+	__le32    reserved;
+	__le32    size;
 };
 
 /**
@@ -330,10 +330,10 @@ struct utp_transfer_cmd_desc {
  * @dword3: Descriptor Header DW3
  */
 struct request_desc_header {
-	u32 dword_0;
-	u32 dword_1;
-	u32 dword_2;
-	u32 dword_3;
+	__le32 dword_0;
+	__le32 dword_1;
+	__le32 dword_2;
+	__le32 dword_3;
 };
 
 /**
@@ -352,16 +352,16 @@ struct utp_transfer_req_desc {
 	struct request_desc_header header;
 
 	/* DW 4-5*/
-	u32  command_desc_base_addr_lo;
-	u32  command_desc_base_addr_hi;
+	__le32  command_desc_base_addr_lo;
+	__le32  command_desc_base_addr_hi;
 
 	/* DW 6 */
-	u16  response_upiu_length;
-	u16  response_upiu_offset;
+	__le16  response_upiu_length;
+	__le16  response_upiu_offset;
 
 	/* DW 7 */
-	u16  prd_table_length;
-	u16  prd_table_offset;
+	__le16  prd_table_length;
+	__le16  prd_table_offset;
 };
 
 /**
@@ -376,10 +376,10 @@ struct utp_task_req_desc {
 	struct request_desc_header header;
 
 	/* DW 4-11 */
-	u32 task_req_upiu[TASK_REQ_UPIU_SIZE_DWORDS];
+	__le32 task_req_upiu[TASK_REQ_UPIU_SIZE_DWORDS];
 
 	/* DW 12-19 */
-	u32 task_rsp_upiu[TASK_RSP_UPIU_SIZE_DWORDS];
+	__le32 task_rsp_upiu[TASK_RSP_UPIU_SIZE_DWORDS];
 };
 
 #endif /* End of Header */