netdev - [PATCH net-next 2/5] net: dsa: mv88e6xxx: Unique SERDES interrupt names

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Date:   Mon,  6 Jan 2020 17:13:49 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     David Miller <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Vivien Didelot <vivien.didelot@...il.com>, cphealy@...il.com,
        Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next 2/5] net: dsa: mv88e6xxx: Unique SERDES interrupt names

Dynamically generate a unique SERDES interrupt name, based on the
device name and the port the SERDES is for. For example:

 95:          3  mv88e6xxx-g2   9 Edge      mv88e6xxx-0.2:00-serdes-9
 96:          0  mv88e6xxx-g2  10 Edge      mv88e6xxx-0.2:00-serdes-10

The 0.2:00 indicates the switch and -9 indicates port 9.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 6 +++++-
 drivers/net/dsa/mv88e6xxx/chip.h | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index e21e460c11f7..99816ca9e5e4 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2306,10 +2306,14 @@ static int mv88e6xxx_serdes_irq_request(struct mv88e6xxx_chip *chip, int port,
 	if (!irq)
 		return 0;
 
+	snprintf(dev_id->serdes_irq_name, sizeof(dev_id->serdes_irq_name),
+		 "mv88e6xxx-%s-serdes-%d", dev_name(chip->dev), port);
+
 	/* Requesting the IRQ will trigger IRQ callbacks, so release the lock */
 	mv88e6xxx_reg_unlock(chip);
 	err = request_threaded_irq(irq, NULL, mv88e6xxx_serdes_irq_thread_fn,
-				   IRQF_ONESHOT, "mv88e6xxx-serdes", dev_id);
+				   IRQF_ONESHOT, dev_id->serdes_irq_name,
+				   dev_id);
 	mv88e6xxx_reg_lock(chip);
 	if (err)
 		return err;
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 03aec58513ab..b7613ef600d2 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -236,6 +236,7 @@ struct mv88e6xxx_port {
 	bool mirror_ingress;
 	bool mirror_egress;
 	unsigned int serdes_irq;
+	char serdes_irq_name[32];
 };
 
 struct mv88e6xxx_chip {
-- 
2.25.0.rc1