scsi: qla2xxx: Increase the size of struct qla_fcp_prio_cfg to FCP_PRIO_CFG_SIZE

This patch fixes the following Coverity complaint without changing any
functionality:

CID 337793 (#1 of 1): Wrong size argument (SIZEOF_MISMATCH)
suspicious_sizeof: Passing argument ha->fcp_prio_cfg of type
struct qla_fcp_prio_cfg * and argument 32768UL to function memset is
suspicious because a multiple of sizeof (struct qla_fcp_prio_cfg) /*48*/
is expected.

memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE);

Link: https://lore.kernel.org/r/20200518211712.11395-8-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_fw.h

@@ -2217,8 +2217,9 @@ struct qla_fcp_prio_cfg {
 #define FCP_PRIO_ATTR_PERSIST   0x2
 	uint8_t  reserved;      /* Reserved for future use          */
 #define FCP_PRIO_CFG_HDR_SIZE   0x10
-	struct qla_fcp_prio_entry entry[1];     /* fcp priority entries  */
+	struct qla_fcp_prio_entry entry[1023]; /* fcp priority entries  */
 #define FCP_PRIO_CFG_ENTRY_SIZE 0x20
+	uint8_t  reserved2[16];
 };
 
 #define FCP_PRIO_CFG_SIZE       (32*1024) /* fcp prio data per port*/

drivers/scsi/qla2xxx/qla_os.c

@@ -7883,6 +7883,7 @@ qla2x00_module_init(void)
 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_data_desc) != 28);
 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_table_desc) != 32);
 	BUILD_BUG_ON(sizeof(struct qla83xx_fw_dump) != 51196);
+	BUILD_BUG_ON(sizeof(struct qla_fcp_prio_cfg) != FCP_PRIO_CFG_SIZE);
 	BUILD_BUG_ON(sizeof(struct qla_fdt_layout) != 128);
 	BUILD_BUG_ON(sizeof(struct qla_flt_header) != 8);
 	BUILD_BUG_ON(sizeof(struct qla_flt_region) != 16);