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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH v2 7/8] mdio_bus: Change PHY's naming scheme
Date: Sun, 31 Jan 2016 19:10:12 -0800	[thread overview]
Message-ID: <1454296213-12734-8-git-send-email-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <1454296213-12734-1-git-send-email-andrew.smirnov@gmail.com>

Change the way PHY devices are named upon creation. This commit replaces
sequentialy numbered "/dev/phy%d" with "/dev/mdio%d-phy%02x". This way
it is significanlty easier to identify which PHY in real-life (e.g. on a
schematic) corresponds to which device in /dev.

Also, replace asprintf with xasprintf to provide some form of memory
allocation failure checking.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 drivers/net/phy/mdio_bus.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index b74b27e..41bf018 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -333,7 +333,9 @@ static int mdio_bus_probe(struct device_d *_dev)
 	dev_add_param_int_ro(&dev->dev, "phy_addr", dev->addr, "%d");
 	dev_add_param_int_ro(&dev->dev, "phy_id", dev->phy_id, "0x%08x");
 
-	dev->cdev.name = asprintf("phy%d", _dev->id);
+	dev->cdev.name = xasprintf("mdio%d-phy%02x",
+				   dev->bus->dev.id,
+				   dev->addr);
 	dev->cdev.size = 64;
 	dev->cdev.ops = &phydev_ops;
 	dev->cdev.priv = dev;
-- 
2.5.0


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  parent reply	other threads:[~2016-02-01  3:11 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-01  3:10 [PATCH v2 0/8] Bitbang MDIO, miitool changes Andrey Smirnov
2016-02-01  3:10 ` [PATCH v2 1/8] include/linux/phy.h: Add MII_ADDR_C45 Andrey Smirnov
2016-02-01  3:10 ` [PATCH v2 2/8] net: Port bitbanged MDIO code from Linux kernel Andrey Smirnov
2016-02-01  3:10 ` [PATCH v2 3/8] miitool: Fix PHY argument handling Andrey Smirnov
2016-02-01  3:10 ` [PATCH v2 4/8] mdio_bus: Change dev_info to dev_dbg Andrey Smirnov
2016-02-01  3:10 ` [PATCH v2 5/8] mdio_bus: Add mdiobus_get_bus() function Andrey Smirnov
2016-02-01  3:10 ` [PATCH v2 6/8] miitool: Don't print negative parent IDs Andrey Smirnov
2016-02-01  3:10 ` Andrey Smirnov [this message]
2016-02-03  7:36   ` [PATCH v2 7/8] mdio_bus: Change PHY's naming scheme Sascha Hauer
2016-02-03 19:23     ` Andrey Smirnov
2016-02-04  7:47       ` Sascha Hauer
2016-02-01  3:10 ` [PATCH v2 8/8] miitool: Add code to register a PHY Andrey Smirnov
2016-02-01  9:35   ` Sascha Hauer
2016-02-03  0:41     ` Andrey Smirnov
2016-02-03  7:34       ` Sascha Hauer
2016-02-03 19:20         ` Andrey Smirnov

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