diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 91e680b53523d91877d427909cca6da1e282e41a..d71afae6191cbe7be99f006e563dda0ec89b8643 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -271,7 +271,7 @@ static void fc_exch_setup_hdr(struct fc_exch *ep, struct fc_frame *fp,
 
 	if (f_ctl & FC_FC_END_SEQ) {
 		fr_eof(fp) = FC_EOF_T;
-		if (fc_sof_needs_ack(ep->class))
+		if (fc_sof_needs_ack((enum fc_sof)ep->class))
 			fr_eof(fp) = FC_EOF_N;
 		/*
 		 * From F_CTL.