scsi: qla2xxx: Address a set of sparse warnings

Fix the following sparse warnings:

drivers/scsi/qla2xxx/qla_isr.c:881:23: warning: restricted __le16 degrades to integer
drivers/scsi/qla2xxx/qla_isr.c:881:23: warning: cast to restricted __le16

Link: https://lore.kernel.org/r/20200715043358.21668-1-njavali@marvell.comSigned-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_fw.h

@@ -610,7 +610,7 @@ struct sts_entry_24xx {
 	__le32	residual_len;		/* FW calc residual transfer length. */
 
 	union {
-		uint16_t reserved_1;
+		__le16 reserved_1;
 		__le16	nvme_rsp_pyld_len;
 	};
 

drivers/scsi/qla2xxx/qla_isr.c

@@ -790,7 +790,7 @@ qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 	}
 }
 
-struct purex_item *
+static struct purex_item *
 qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
 {
 	struct purex_item *item = NULL;
@@ -878,7 +878,7 @@ qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
 	struct purex_item *item;
 	void *fpin_pkt = NULL;
 
-	total_bytes = le16_to_cpu(purex->frame_size & 0x0FFF)
+	total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
 	    - PURX_ELS_HEADER_SIZE;
 	pending_bytes = total_bytes;
 	entry_count = entry_count_remaining = purex->entry_count;