linux-kernel - [PATCH 5.15 2/3] can: m_can: make custom bittiming fields const

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Date:   Mon, 20 Dec 2021 10:22:16 +0100
From:   Matthias Schiffer <matthias.schiffer@...tq-group.com>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-can@...r.kernel.org, Marc Kleine-Budde <mkl@...gutronix.de>,
        davem@...emloft.net, kuba@...nel.org,
        Matthias Schiffer <matthias.schiffer@...tq-group.com>
Subject: [PATCH 5.15 2/3] can: m_can: make custom bittiming fields const

commit ea22ba40debee29ee7257c42002409899e9311c1 upstream.

The assigned timing structs will be defined a const anyway, so we can
avoid a few casts by declaring the struct fields as const as well.

Link: https://lore.kernel.org/all/4508fa4e639164b2584c49a065d90c78a91fa568.1636967198.git.matthias.schiffer@ew.tq-group.com
Signed-off-by: Matthias Schiffer <matthias.schiffer@...tq-group.com>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/m_can/m_can.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h
index ad063b101411..2c5d40997168 100644
--- a/drivers/net/can/m_can/m_can.h
+++ b/drivers/net/can/m_can/m_can.h
@@ -85,8 +85,8 @@ struct m_can_classdev {
 	struct sk_buff *tx_skb;
 	struct phy *transceiver;
 
-	struct can_bittiming_const *bit_timing;
-	struct can_bittiming_const *data_timing;
+	const struct can_bittiming_const *bit_timing;
+	const struct can_bittiming_const *data_timing;
 
 	struct m_can_ops *ops;
 
-- 
2.25.1