linux-kernel - [PATCH AUTOSEL 6.6 10/17] scsi: scsi_transport_fc: Allow setting rport state to current state

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Message-ID: <20241014035815.2247153-10-sashal@kernel.org>
Date: Sun, 13 Oct 2024 23:58:00 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Benjamin Marzinski <bmarzins@...hat.com>,
	"Ewan D . Milne" <emilne@...hat.com>,
	"Martin K . Petersen" <martin.petersen@...cle.com>,
	Sasha Levin <sashal@...nel.org>,
	James.Bottomley@...senPartnership.com,
	linux-scsi@...r.kernel.org
Subject: [PATCH AUTOSEL 6.6 10/17] scsi: scsi_transport_fc: Allow setting rport state to current state

From: Benjamin Marzinski <bmarzins@...hat.com>

[ Upstream commit d539a871ae47a1f27a609a62e06093fa69d7ce99 ]

The only input fc_rport_set_marginal_state() currently accepts is
"Marginal" when port_state is "Online", and "Online" when the port_state
is "Marginal". It should also allow setting port_state to its current
state, either "Marginal or "Online".

Signed-off-by: Benjamin Marzinski <bmarzins@...hat.com>
Link: https://lore.kernel.org/r/20240917230643.966768-1-bmarzins@redhat.com
Reviewed-by: Ewan D. Milne <emilne@...hat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/scsi/scsi_transport_fc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index b04075f19445d..96002966ca568 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -1255,7 +1255,7 @@ static ssize_t fc_rport_set_marginal_state(struct device *dev,
 		 */
 		if (rport->port_state == FC_PORTSTATE_ONLINE)
 			rport->port_state = port_state;
-		else
+		else if (port_state != rport->port_state)
 			return -EINVAL;
 	} else if (port_state == FC_PORTSTATE_ONLINE) {
 		/*
@@ -1265,7 +1265,7 @@ static ssize_t fc_rport_set_marginal_state(struct device *dev,
 		 */
 		if (rport->port_state == FC_PORTSTATE_MARGINAL)
 			rport->port_state = port_state;
-		else
+		else if (port_state != rport->port_state)
 			return -EINVAL;
 	} else
 		return -EINVAL;
-- 
2.43.0