linux-kernel - [PATCH v2 RESEND] net: hsr: Use full string description when opening HSR network device

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Message-Id: <20240326085649.3259424-1-lukma@denx.de>
Date: Tue, 26 Mar 2024 09:56:49 +0100
From: Lukasz Majewski <lukma@...x.de>
To: netdev@...r.kernel.org
Cc: Andrew Lunn <andrew@...n.ch>,
	Eric Dumazet <edumazet@...gle.com>,
	Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Oleksij Rempel <o.rempel@...gutronix.de>,
	Tristram.Ha@...rochip.com,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Paolo Abeni <pabeni@...hat.com>,
	Ravi Gunasekaran <r-gunasekaran@...com>,
	Simon Horman <horms@...nel.org>,
	Nikita Zhandarovich <n.zhandarovich@...tech.ru>,
	Murali Karicheri <m-karicheri2@...com>,
	"Ricardo B. Marliere" <ricardo@...liere.net>,
	linux-kernel@...r.kernel.org,
	Lukasz Majewski <lukma@...x.de>
Subject: [PATCH v2 RESEND] net: hsr: Use full string description when opening HSR network device

Up till now only single character ('A' or 'B') was used to provide
information of HSR slave network device status.

As it is also possible and valid, that Interlink network device may
be supported as well, the description must be more verbose. As a result
the full string description is now used.

Signed-off-by: Lukasz Majewski <lukma@...x.de>

---
Changes for v2:
- Use const char * instead of char * - to assure that pointed string is
  immutable (.rodata allocated).
---
 net/hsr/hsr_device.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index c98b5b71ad7c..e9d45133d641 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -132,30 +132,29 @@ static int hsr_dev_open(struct net_device *dev)
 {
 	struct hsr_priv *hsr;
 	struct hsr_port *port;
-	char designation;
+	const char *designation = NULL;
 
 	hsr = netdev_priv(dev);
-	designation = '\0';
 
 	hsr_for_each_port(hsr, port) {
 		if (port->type == HSR_PT_MASTER)
 			continue;
 		switch (port->type) {
 		case HSR_PT_SLAVE_A:
-			designation = 'A';
+			designation = "Slave A";
 			break;
 		case HSR_PT_SLAVE_B:
-			designation = 'B';
+			designation = "Slave B";
 			break;
 		default:
-			designation = '?';
+			designation = "Unknown";
 		}
 		if (!is_slave_up(port->dev))
-			netdev_warn(dev, "Slave %c (%s) is not up; please bring it up to get a fully working HSR network\n",
+			netdev_warn(dev, "%s (%s) is not up; please bring it up to get a fully working HSR network\n",
 				    designation, port->dev->name);
 	}
 
-	if (designation == '\0')
+	if (!designation)
 		netdev_warn(dev, "No slave devices configured\n");
 
 	return 0;
-- 
2.20.1