lpfc: Fix ExpressLane priority setup

Fix ExpressLane priority setup

Signed-off-by: James Smart <james.smart@emulex.com>
Reviewed-By: Dick Kennedy <dick.kennedy@emulex.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index af3eb85..1d7a5c3 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -4660,7 +4660,7 @@
 #       0x0 - 0x7f  = CS_CTL field in FC header (high 7 bits)
 # Value range is [0x0,0x7f]. Default value is 0
 */
-LPFC_ATTR_R(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
+LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
 
 /*
 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)