linux-kernel - [PATCH] libfc: fix enum-conversion warning

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Message-Id: <20201026214911.3892701-1-arnd@kernel.org>
Date:   Mon, 26 Oct 2020 22:49:07 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Hannes Reinecke <hare@...e.de>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        James Bottomley <James.Bottomley@...senPartnership.com>,
        Robert Love <robert.w.love@...el.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Lee Jones <lee.jones@...aro.org>, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] libfc: fix enum-conversion warning

From: Arnd Bergmann <arnd@...db.de>

gcc -Wextra points out an assignment between two different
enum types:

drivers/scsi/libfc/fc_exch.c: In function 'fc_exch_setup_hdr':
../drivers/scsi/libfc/fc_exch.c:275:26: warning: implicit conversion from 'enum fc_class' to 'enum fc_sof' [-Wenum-conversion]

This seems to be intentional, as the same numeric values are
used here, so shut up the warning by adding an explicit cast.

Fixes: 42e9a92fe6a9 ("[SCSI] libfc: A modular Fibre Channel library")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/scsi/libfc/fc_exch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 91e680b53523..d71afae6191c 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.
-- 
2.27.0