linux-kernel - [PATCH v4 06/12] can: m

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Message-Id: <20230621092350.3130866-7-msp@baylibre.com>
Date:   Wed, 21 Jun 2023 11:23:44 +0200
From:   Markus Schneider-Pargmann <msp@...libre.com>
To:     Marc Kleine-Budde <mkl@...gutronix.de>,
        Chandrasekar Ramakrishnan <rcsekar@...sung.com>,
        Wolfgang Grandegger <wg@...ndegger.com>
Cc:     Vincent MAILHOL <mailhol.vincent@...adoo.fr>,
        Simon Horman <simon.horman@...igine.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, linux-can@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Julien Panis <jpanis@...libre.com>,
        Markus Schneider-Pargmann <msp@...libre.com>
Subject: [PATCH v4 06/12] can: m_can: Use u32 for putidx

putidx is not an integer normally, it is an unsigned field used in
hardware registers. Use a u32 for it.

Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
---
 drivers/net/can/m_can/m_can.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index d1435d1466b2..6f8043636c54 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -467,7 +467,7 @@ static void m_can_clean(struct net_device *net)
 	struct m_can_classdev *cdev = netdev_priv(net);
 
 	if (cdev->tx_skb) {
-		int putidx = 0;
+		u32 putidx = 0;
 
 		net->stats.tx_errors++;
 		if (cdev->version > 30)
@@ -1673,12 +1673,12 @@ static int m_can_close(struct net_device *dev)
 	return 0;
 }
 
-static int m_can_next_echo_skb_occupied(struct net_device *dev, int putidx)
+static int m_can_next_echo_skb_occupied(struct net_device *dev, u32 putidx)
 {
 	struct m_can_classdev *cdev = netdev_priv(dev);
 	/*get wrap around for loopback skb index */
 	unsigned int wrap = cdev->can.echo_skb_max;
-	int next_idx;
+	u32 next_idx;
 
 	/* calculate next index */
 	next_idx = (++putidx >= wrap ? 0 : putidx);
@@ -1698,7 +1698,7 @@ static netdev_tx_t m_can_tx_handler(struct m_can_classdev *cdev)
 	u32 cccr, fdflags;
 	u32 txfqs;
 	int err;
-	int putidx;
+	u32 putidx;
 
 	cdev->tx_skb = NULL;
 
-- 
2.40.1