[PATCH 1/1] net: phylib: remove the length limitation of mii bus id

From: Dong Aisheng
Date: Tue Mar 20 2012 - 00:14:07 EST

From: Dong Aisheng <dong.aisheng@xxxxxxxxxx>

When convert to dt, the length of old mii bus id (17 bytes) is not
sufficent to use.
For example, the bus id could be 800f0000.ethernet-1:00 in DT.

This patch removes the bus id length limitation by changing the
bus id to a const char pionter and user could dynamically set the
bus id via kasprintf function call.

Since then no users use MII_BUS_ID_SIZE any more, just remove it.

Signed-off-by: Dong Aisheng <dong.aisheng@xxxxxxxxxx>
---
The simplest way may just change MII_BUS_ID_SIZE to a more bigger size,
but i'm not sure that's gonna be accepted.
So changed to remove the bus id length limitation, a lot of handwork.

Since this patch changes a lot of other ethernet drivers and i did
not have condition to test it, need each corresponding driver owners
to help review.

I just greped the macro MII_BUS_ID_SIZE in the latest kernel tree and
did the replacement.
In case any one missed(may not use MII_BUS_ID_SIZE), that driver owner
should help change it.

Only tested the fec driver on i.MX28 EVK board.
---
arch/powerpc/platforms/82xx/ep8248e.c | 2 +-
arch/powerpc/platforms/pasemi/gpio_mdio.c | 2 +-
drivers/net/ethernet/8390/ax88796.c | 4 +---
drivers/net/ethernet/adi/bfin_mac.c | 3 +--
drivers/net/ethernet/aeroflex/greth.c | 2 +-
drivers/net/ethernet/amd/au1000_eth.c | 3 +--
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 10 +++++-----
drivers/net/ethernet/broadcom/sb1250-mac.c | 2 +-
drivers/net/ethernet/broadcom/tg3.c | 4 ++--
drivers/net/ethernet/cadence/macb.c | 2 +-
drivers/net/ethernet/dnet.c | 2 +-
drivers/net/ethernet/ethoc.c | 2 +-
drivers/net/ethernet/faraday/ftgmac100.c | 2 +-
drivers/net/ethernet/freescale/fec.c | 16 +++++++++-------
drivers/net/ethernet/freescale/fec_mpc52xx_phy.c | 2 +-
.../net/ethernet/freescale/fs_enet/mii-bitbang.c | 2 +-
drivers/net/ethernet/freescale/fs_enet/mii-fec.c | 2 +-
drivers/net/ethernet/freescale/fsl_pq_mdio.c | 6 +++---
drivers/net/ethernet/freescale/fsl_pq_mdio.h | 2 +-
drivers/net/ethernet/lantiq_etop.c | 2 +-
drivers/net/ethernet/marvell/mv643xx_eth.c | 2 +-
drivers/net/ethernet/marvell/pxa168_eth.c | 2 +-
drivers/net/ethernet/rdc/r6040.c | 4 ++--
drivers/net/ethernet/renesas/sh_eth.c | 7 ++++---
drivers/net/ethernet/s6gmac.c | 2 +-
drivers/net/ethernet/smsc/smsc911x.c | 4 ++--
drivers/net/ethernet/smsc/smsc9420.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 10 ++++++----
drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 4 ++--
drivers/net/ethernet/ti/cpmac.c | 16 ++++++++--------
drivers/net/ethernet/ti/davinci_mdio.c | 4 ++--
drivers/net/ethernet/toshiba/tc35815.c | 2 +-
drivers/net/ethernet/xilinx/ll_temac_mdio.c | 2 +-
drivers/net/ethernet/xilinx/xilinx_emaclite.c | 2 +-
drivers/net/ethernet/xscale/ixp4xx_eth.c | 7 ++++---
drivers/net/phy/fixed.c | 2 +-
drivers/net/phy/mdio-gpio.c | 2 +-
drivers/net/phy/mdio-octeon.c | 2 +-
drivers/net/phy/phy_device.c | 2 +-
drivers/of/of_mdio.c | 5 +++--
drivers/staging/et131x/et131x.c | 2 +-
include/linux/phy.h | 10 ++--------
net/dsa/slave.c | 2 +-
43 files changed, 83 insertions(+), 86 deletions(-)

diff --git a/arch/powerpc/platforms/82xx/ep8248e.c b/arch/powerpc/platforms/82xx/ep8248e.c
index 10ff526..21658de 100644
--- a/arch/powerpc/platforms/82xx/ep8248e.c
+++ b/arch/powerpc/platforms/82xx/ep8248e.c
@@ -139,7 +139,7 @@ static int __devinit ep8248e_mdio_probe(struct platform_device *ofdev)

bus->name = "ep8248e-mdio-bitbang";
bus->parent = &ofdev->dev;
- snprintf(bus->id, MII_BUS_ID_SIZE, "%x", res.start);
+ bus->id = kasprintf(GFP_KERNEL, "%x", res.start);

ret = of_mdiobus_register(bus, ofdev->dev.of_node);
if (ret)
diff --git a/arch/powerpc/platforms/pasemi/gpio_mdio.c b/arch/powerpc/platforms/pasemi/gpio_mdio.c
index 9886296..3b55962 100644
--- a/arch/powerpc/platforms/pasemi/gpio_mdio.c
+++ b/arch/powerpc/platforms/pasemi/gpio_mdio.c
@@ -241,7 +241,7 @@ static int __devinit gpio_mdio_probe(struct platform_device *ofdev)
new_bus->reset = &gpio_mdio_reset;

prop = of_get_property(np, "reg", NULL);
- snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", *prop);
+ new_bus->id = kasprintf(GFP_KERNEL, "%x", *prop);
new_bus->priv = priv;

new_bus->irq = priv->mdio_irqs;
diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
index 0f92e35..c70067c 100644
--- a/drivers/net/ethernet/8390/ax88796.c
+++ b/drivers/net/ethernet/8390/ax88796.c
@@ -623,9 +623,7 @@ static int ax_mii_init(struct net_device *dev)

ax->mii_bus->name = "ax88796_mii_bus";
ax->mii_bus->parent = dev->dev.parent;
- snprintf(ax->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
- pdev->name, pdev->id);
-
+ ax->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x", pdev->name, pdev->id);
ax->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
if (!ax->mii_bus->irq) {
err = -ENOMEM;
diff --git a/drivers/net/ethernet/adi/bfin_mac.c b/drivers/net/ethernet/adi/bfin_mac.c
index d812a10..77d473a 100644
--- a/drivers/net/ethernet/adi/bfin_mac.c
+++ b/drivers/net/ethernet/adi/bfin_mac.c
@@ -1670,8 +1670,7 @@ static int __devinit bfin_mii_bus_probe(struct platform_device *pdev)
miibus->name = "bfin_mii_bus";
miibus->phy_mask = mii_bus_pd->phy_mask;

- snprintf(miibus->id, MII_BUS_ID_SIZE, "%s-%x",
- pdev->name, pdev->id);
+ miibus->id = kasprintf(GFP_KERNEL, "%s-%x", pdev->name, pdev->id);
miibus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
if (!miibus->irq)
goto out_err_irq_alloc;
diff --git a/drivers/net/ethernet/aeroflex/greth.c b/drivers/net/ethernet/aeroflex/greth.c
index c885aa9..df635f2 100644
--- a/drivers/net/ethernet/aeroflex/greth.c
+++ b/drivers/net/ethernet/aeroflex/greth.c
@@ -1332,7 +1332,7 @@ static int greth_mdio_init(struct greth_private *greth)
}

greth->mdio->name = "greth-mdio";
- snprintf(greth->mdio->id, MII_BUS_ID_SIZE, "%s-%d", greth->mdio->name, greth->irq);
+ greth->mdio->id = kasprintf(GFP_KERNEL, "%s-%d", greth->mdio->name, greth->irq);
greth->mdio->read = greth_mdio_read;
greth->mdio->write = greth_mdio_write;
greth->mdio->reset = greth_mdio_reset;
diff --git a/drivers/net/ethernet/amd/au1000_eth.c b/drivers/net/ethernet/amd/au1000_eth.c
index 8b95dd3..99e0ebb 100644
--- a/drivers/net/ethernet/amd/au1000_eth.c
+++ b/drivers/net/ethernet/amd/au1000_eth.c
@@ -1171,8 +1171,7 @@ static int __devinit au1000_probe(struct platform_device *pdev)
aup->mii_bus->write = au1000_mdiobus_write;
aup->mii_bus->reset = au1000_mdiobus_reset;
aup->mii_bus->name = "au1000_eth_mii";
- snprintf(aup->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
- pdev->name, aup->mac_id);
+ aup->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x", pdev->name, aup->mac_id);
aup->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
if (aup->mii_bus->irq == NULL)
goto err_out;
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index 986019b..8118878 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -787,7 +787,7 @@ static int bcm_enet_open(struct net_device *dev)
struct phy_device *phydev;
int i, ret;
unsigned int size;
- char phy_id[MII_BUS_ID_SIZE + 3];
+ const char *phy_id;
void *p;
u32 val;

@@ -796,12 +796,12 @@ static int bcm_enet_open(struct net_device *dev)

if (priv->has_phy) {
/* connect to PHY */
- snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
- priv->mac_id ? "1" : "0", priv->phy_id);
+ phy_id = kasprintf(GFP_KERNEL, PHY_ID_FMT,
+ priv->mac_id ? "1" : "0", priv->phy_id);

phydev = phy_connect(dev, phy_id, bcm_enet_adjust_phy_link, 0,
PHY_INTERFACE_MODE_MII);
-
+ kfree(phy_id);
if (IS_ERR(phydev)) {
dev_err(kdev, "could not attach to PHY\n");
return PTR_ERR(phydev);
@@ -1727,7 +1727,7 @@ static int __devinit bcm_enet_probe(struct platform_device *pdev)
bus->priv = priv;
bus->read = bcm_enet_mdio_read_phylib;
bus->write = bcm_enet_mdio_write_phylib;
- sprintf(bus->id, "%s-%d", pdev->name, priv->mac_id);
+ bus->id = kasprintf(GFP_KERNEL, "%s-%d", pdev->name, priv->mac_id);

/* only probe bus where we think the PHY is, because
* the mdio read operation return 0 instead of 0xffff
diff --git a/drivers/net/ethernet/broadcom/sb1250-mac.c b/drivers/net/ethernet/broadcom/sb1250-mac.c
index 084904c..7fd5654 100644
--- a/drivers/net/ethernet/broadcom/sb1250-mac.c
+++ b/drivers/net/ethernet/broadcom/sb1250-mac.c
@@ -2259,7 +2259,7 @@ static int sbmac_init(struct platform_device *pldev, long long base)
}

sc->mii_bus->name = sbmac_mdio_string;
- snprintf(sc->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+ sc->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
pldev->name, idx);
sc->mii_bus->priv = sc;
sc->mii_bus->read = sbmac_mii_read;
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index d529af9..2750e49 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -1328,8 +1328,8 @@ static int tg3_mdio_init(struct tg3 *tp)
return -ENOMEM;

tp->mdio_bus->name = "tg3 mdio bus";
- snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
- (tp->pdev->bus->number << 8) | tp->pdev->devfn);
+ tp->mdio_bus->id = kasprintf(GFP_KERNEL, "%x",
+ (tp->pdev->bus->number << 8) | tp->pdev->devfn);
tp->mdio_bus->priv = tp;
tp->mdio_bus->parent = &tp->pdev->dev;
tp->mdio_bus->read = &tg3_mdio_read;
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 2320068..62e4465 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -243,7 +243,7 @@ static int macb_mii_init(struct macb *bp)
bp->mii_bus->read = &macb_mdio_read;
bp->mii_bus->write = &macb_mdio_write;
bp->mii_bus->reset = &macb_mdio_reset;
- snprintf(bp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+ bp->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
bp->pdev->name, bp->pdev->id);
bp->mii_bus->priv = bp;
bp->mii_bus->parent = &bp->dev->dev;
diff --git a/drivers/net/ethernet/dnet.c b/drivers/net/ethernet/dnet.c
index 925c9ba..18c3c92 100644
--- a/drivers/net/ethernet/dnet.c
+++ b/drivers/net/ethernet/dnet.c
@@ -325,7 +325,7 @@ static int dnet_mii_init(struct dnet *bp)
bp->mii_bus->write = &dnet_mdio_write;
bp->mii_bus->reset = &dnet_mdio_reset;

- snprintf(bp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+ bp->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
bp->pdev->name, bp->pdev->id);

bp->mii_bus->priv = bp;
diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
index 60f0e78..e9195a5 100644
--- a/drivers/net/ethernet/ethoc.c
+++ b/drivers/net/ethernet/ethoc.c
@@ -1063,7 +1063,7 @@ static int __devinit ethoc_probe(struct platform_device *pdev)
}

priv->mdio->name = "ethoc-mdio";
- snprintf(priv->mdio->id, MII_BUS_ID_SIZE, "%s-%d",
+ priv->mdio->id = kasprintf(GFP_KERNEL, "%s-%d",
priv->mdio->name, pdev->id);
priv->mdio->read = ethoc_mdio_read;
priv->mdio->write = ethoc_mdio_write;
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index fb5579a..af418cd 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1255,7 +1255,7 @@ static int ftgmac100_probe(struct platform_device *pdev)
}

priv->mii_bus->name = "ftgmac100_mdio";
- snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "ftgmac100_mii");
+ priv->mii_bus->id = kstrdup("ftgmac100_mii", GFP_KERNEL);

priv->mii_bus->priv = netdev;
priv->mii_bus->read = ftgmac100_mdiobus_read;
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index 7b25e9c..6e82c2d 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c
@@ -961,8 +961,8 @@ static int fec_enet_mii_probe(struct net_device *ndev)
const struct platform_device_id *id_entry =
platform_get_device_id(fep->pdev);
struct phy_device *phy_dev = NULL;
- char mdio_bus_id[MII_BUS_ID_SIZE];
- char phy_name[MII_BUS_ID_SIZE + 3];
+ const char *mdio_bus_id;
+ const char *phy_name;
int phy_id;
int dev_id = fep->dev_id;

@@ -978,7 +978,7 @@ static int fec_enet_mii_probe(struct net_device *ndev)
continue;
if (dev_id--)
continue;
- strncpy(mdio_bus_id, fep->mii_bus->id, MII_BUS_ID_SIZE);
+ mdio_bus_id = kstrdup(fep->mii_bus->id, GFP_KERNEL);
break;
}

@@ -986,13 +986,15 @@ static int fec_enet_mii_probe(struct net_device *ndev)
printk(KERN_INFO
"%s: no PHY, assuming direct connection to switch\n",
ndev->name);
- strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE);
+ mdio_bus_id = kstrdup("0", GFP_KERNEL);
phy_id = 0;
}

- snprintf(phy_name, MII_BUS_ID_SIZE, PHY_ID_FMT, mdio_bus_id, phy_id);
+ phy_name= kasprintf(GFP_KERNEL, PHY_ID_FMT, mdio_bus_id, phy_id);
phy_dev = phy_connect(ndev, phy_name, &fec_enet_adjust_link, 0,
fep->phy_interface);
+ kfree(mdio_bus_id);
+ kfree(phy_name);
if (IS_ERR(phy_dev)) {
printk(KERN_ERR "%s: could not attach to PHY\n", ndev->name);
return PTR_ERR(phy_dev);
@@ -1080,8 +1082,8 @@ static int fec_enet_mii_init(struct platform_device *pdev)
fep->mii_bus->read = fec_enet_mdio_read;
fep->mii_bus->write = fec_enet_mdio_write;
fep->mii_bus->reset = fec_enet_mdio_reset;
- snprintf(fep->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
- pdev->name, fep->dev_id + 1);
+ fep->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
+ pdev->name, fep->dev_id +1);
fep->mii_bus->priv = fep;
fep->mii_bus->parent = &pdev->dev;

diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx_phy.c b/drivers/net/ethernet/freescale/fec_mpc52xx_phy.c
index 360a578..7724be7 100644
--- a/drivers/net/ethernet/freescale/fec_mpc52xx_phy.c
+++ b/drivers/net/ethernet/freescale/fec_mpc52xx_phy.c
@@ -96,7 +96,7 @@ static int mpc52xx_fec_mdio_probe(struct platform_device *of)
goto out_free;
}

- snprintf(bus->id, MII_BUS_ID_SIZE, "%x", res.start);
+ bus->id = kasprintf(GFP_KERNEL, "%x", res.start);
bus->priv = priv;

bus->parent = dev;
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
index 0f2d1a7..9e6eac9 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
@@ -127,7 +127,7 @@ static int __devinit fs_mii_bitbang_init(struct mii_bus *bus,
* we get is an int, and the odds of multiple bitbang mdio buses
* is low enough that it's not worth going too crazy.
*/
- snprintf(bus->id, MII_BUS_ID_SIZE, "%x", res.start);
+ bus->id = kasprintf(GFP_KERNEL, "%x", res.start);

data = of_get_property(np, "fsl,mdio-pin", &len);
if (!data || len != 4)
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
index 55bb867..5242f4d 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
@@ -134,7 +134,7 @@ static int __devinit fs_enet_mdio_probe(struct platform_device *ofdev)
if (ret)
goto out_res;

- snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", res.start);
+ new_bus->id = kasprintf(GFP_KERNEL, "%x", res.start);

fec->fecp = ioremap(res.start, resource_size(&res));
if (!fec->fecp)
diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
index 9eb8159..773acd5 100644
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c
+++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
@@ -169,7 +169,7 @@ static int fsl_pq_mdio_reset(struct mii_bus *bus)
return 0;
}

-void fsl_pq_mdio_bus_name(char *name, struct device_node *np)
+void fsl_pq_mdio_bus_name(char **name, struct device_node *np)
{
const u32 *addr;
u64 taddr = OF_BAD_ADDR;
@@ -178,7 +178,7 @@ void fsl_pq_mdio_bus_name(char *name, struct device_node *np)
if (addr)
taddr = of_translate_address(np, addr);

- snprintf(name, MII_BUS_ID_SIZE, "%s@%llx", np->name,
+ *name = kasprintf(GFP_KERNEL, "%s@%llx", np->name,
(unsigned long long)taddr);
}
EXPORT_SYMBOL_GPL(fsl_pq_mdio_bus_name);
@@ -277,7 +277,7 @@ static int fsl_pq_mdio_probe(struct platform_device *ofdev)
new_bus->write = &fsl_pq_mdio_write,
new_bus->reset = &fsl_pq_mdio_reset,
new_bus->priv = priv;
- fsl_pq_mdio_bus_name(new_bus->id, np);
+ fsl_pq_mdio_bus_name(&new_bus->id, np);

addrp = of_get_address(np, 0, &size, NULL);
if (!addrp) {
diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.h b/drivers/net/ethernet/freescale/fsl_pq_mdio.h
index bd17a2a..b563ef7 100644
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.h
+++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.h
@@ -48,5 +48,5 @@ int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs, int mii_id, int regnum);
int __init fsl_pq_mdio_init(void);
void fsl_pq_mdio_exit(void);
-void fsl_pq_mdio_bus_name(char *name, struct device_node *np);
+void fsl_pq_mdio_bus_name(char **name, struct device_node *np);
#endif /* FSL_PQ_MDIO_H */
diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c
index 85e2c6c..742e7dd 100644
--- a/drivers/net/ethernet/lantiq_etop.c
+++ b/drivers/net/ethernet/lantiq_etop.c
@@ -437,7 +437,7 @@ ltq_etop_mdio_init(struct net_device *dev)
priv->mii_bus->read = ltq_etop_mdio_rd;
priv->mii_bus->write = ltq_etop_mdio_wr;
priv->mii_bus->name = "ltq_mii";
- snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+ priv->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
priv->pdev->name, priv->pdev->id);
priv->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
if (!priv->mii_bus->irq) {
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 9c049d2..e18707f 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2613,7 +2613,7 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
msp->smi_bus->name = "mv643xx_eth smi";
msp->smi_bus->read = smi_bus_read;
msp->smi_bus->write = smi_bus_write,
- snprintf(msp->smi_bus->id, MII_BUS_ID_SIZE, "%s-%d",
+ msp->smi_bus->id = kasprintf(GFP_KERNEL, "%s-%d",
pdev->name, pdev->id);
msp->smi_bus->parent = &pdev->dev;
msp->smi_bus->phy_mask = 0xffffffff;
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index 953ba58..bf19af7 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -1552,7 +1552,7 @@ static int pxa168_eth_probe(struct platform_device *pdev)
pep->smi_bus->name = "pxa168_eth smi";
pep->smi_bus->read = pxa168_smi_read;
pep->smi_bus->write = pxa168_smi_write;
- snprintf(pep->smi_bus->id, MII_BUS_ID_SIZE, "%s-%d",
+ pep->smi_bus->id = kasprintf(GFP_KERNEL, "%s-%d",
pdev->name, pdev->id);
pep->smi_bus->parent = &pdev->dev;
pep->smi_bus->phy_mask = 0xffffffff;
diff --git a/drivers/net/ethernet/rdc/r6040.c b/drivers/net/ethernet/rdc/r6040.c
index cb0eca8..9d890b2 100644
--- a/drivers/net/ethernet/rdc/r6040.c
+++ b/drivers/net/ethernet/rdc/r6040.c
@@ -1181,8 +1181,8 @@ static int __devinit r6040_init_one(struct pci_dev *pdev,
lp->mii_bus->write = r6040_mdiobus_write;
lp->mii_bus->reset = r6040_mdiobus_reset;
lp->mii_bus->name = "r6040_eth_mii";
- snprintf(lp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
- dev_name(&pdev->dev), card_idx);
+ lp->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
+ dev_name(&pdev->dev), card_idx);
lp->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
if (!lp->mii_bus->irq) {
dev_err(&pdev->dev, "mii_bus irq allocation failed\n");
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 813d41c..3210fd9 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1213,10 +1213,10 @@ static void sh_eth_adjust_link(struct net_device *ndev)
static int sh_eth_phy_init(struct net_device *ndev)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
- char phy_id[MII_BUS_ID_SIZE + 3];
+ const char *phy_id;
struct phy_device *phydev = NULL;

- snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
+ phy_id = kasprintf(GFP_KERNEL, PHY_ID_FMT,
mdp->mii_bus->id , mdp->phy_id);

mdp->link = PHY_DOWN;
@@ -1226,6 +1226,7 @@ static int sh_eth_phy_init(struct net_device *ndev)
/* Try connect to PHY */
phydev = phy_connect(ndev, phy_id, sh_eth_adjust_link,
0, mdp->phy_interface);
+ kfree(phy_id);
if (IS_ERR(phydev)) {
dev_err(&ndev->dev, "phy_connect failed\n");
return PTR_ERR(phydev);
@@ -1702,7 +1703,7 @@ static int sh_mdio_init(struct net_device *ndev, int id,
/* Hook up MII support for ethtool */
mdp->mii_bus->name = "sh_mii";
mdp->mii_bus->parent = &ndev->dev;
- snprintf(mdp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+ mdp->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
mdp->pdev->name, id);

/* PHY IRQ */
diff --git a/drivers/net/ethernet/s6gmac.c b/drivers/net/ethernet/s6gmac.c
index 22e9c01..dd5f29b 100644
--- a/drivers/net/ethernet/s6gmac.c
+++ b/drivers/net/ethernet/s6gmac.c
@@ -1004,7 +1004,7 @@ static int __devinit s6gmac_probe(struct platform_device *pdev)
mb->write = s6mii_write;
mb->reset = s6mii_reset;
mb->priv = pd;
- snprintf(mb->id, MII_BUS_ID_SIZE, "%s-%x", pdev->name, pdev->id);
+ mb->id = kasprintf(GFP_KERNEL, "%s-%x", pdev->name, pdev->id);
mb->phy_mask = ~(1 << 0);
mb->irq = &pd->mii.irq[0];
for (i = 0; i < PHY_MAX_ADDR; i++) {
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 24d2df0..4aab696 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -1044,8 +1044,8 @@ static int __devinit smsc911x_mii_init(struct platform_device *pdev,
}

pdata->mii_bus->name = SMSC_MDIONAME;
- snprintf(pdata->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
- pdev->name, pdev->id);
+ pdata->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
+ pdev->name, pdev->id);
pdata->mii_bus->priv = pdata;
pdata->mii_bus->read = smsc911x_mii_read;
pdata->mii_bus->write = smsc911x_mii_write;
diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c
index a9efbdf..bffd175 100644
--- a/drivers/net/ethernet/smsc/smsc9420.c
+++ b/drivers/net/ethernet/smsc/smsc9420.c
@@ -1211,7 +1211,7 @@ static int smsc9420_mii_init(struct net_device *dev)
goto err_out_1;
}
pd->mii_bus->name = DRV_MDIONAME;
- snprintf(pd->mii_bus->id, MII_BUS_ID_SIZE, "%x",
+ pd->mii_bus->id = kasprintf(GFP_KERNEL, "%x",
(pd->pdev->bus->number << 8) | pd->pdev->devfn);
pd->mii_bus->priv = pd;
pd->mii_bus->read = smsc9420_mii_read;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 96fa2da..c72a50e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -300,19 +300,21 @@ static int stmmac_init_phy(struct net_device *dev)
{
struct stmmac_priv *priv = netdev_priv(dev);
struct phy_device *phydev;
- char phy_id[MII_BUS_ID_SIZE + 3];
- char bus_id[MII_BUS_ID_SIZE];
+ const char *phy_id;
+ const char *bus_id;
int interface = priv->plat->interface;
priv->oldlink = 0;
priv->speed = 0;
priv->oldduplex = -1;

- snprintf(bus_id, MII_BUS_ID_SIZE, "stmmac-%x", priv->plat->bus_id);
- snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, bus_id,
+ bus_id = kasprintf(GFP_KERNEL, "stmmac-%x", priv->plat->bus_id);
+ phy_id = kasprintf(GFP_KERNEL, PHY_ID_FMT, bus_id,
priv->plat->phy_addr);
pr_debug("stmmac_init_phy: trying to attach to %s\n", phy_id);

phydev = phy_connect(dev, phy_id, &stmmac_adjust_link, 0, interface);
+ kfree(phy_id);
+ kfree(bus_id);

if (IS_ERR(phydev)) {
pr_err("%s: Could not attach to PHY\n", dev->name);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index da4a104..6a72265 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -158,8 +158,8 @@ int stmmac_mdio_register(struct net_device *ndev)
new_bus->read = &stmmac_mdio_read;
new_bus->write = &stmmac_mdio_write;
new_bus->reset = &stmmac_mdio_reset;
- snprintf(new_bus->id, MII_BUS_ID_SIZE, "%s-%x",
- new_bus->name, mdio_bus_data->bus_id);
+ new_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
+ new_bus->name, mdio_bus_data->bus_id);
new_bus->priv = ndev;
new_bus->irq = irqlist;
new_bus->phy_mask = mdio_bus_data->phy_mask;
diff --git a/drivers/net/ethernet/ti/cpmac.c b/drivers/net/ethernet/ti/cpmac.c
index 4d9a28f..b448cca 100644
--- a/drivers/net/ethernet/ti/cpmac.c
+++ b/drivers/net/ethernet/ti/cpmac.c
@@ -205,7 +205,7 @@ struct cpmac_priv {
void __iomem *regs;
struct mii_bus *mii_bus;
struct phy_device *phy;
- char phy_name[MII_BUS_ID_SIZE + 3];
+ const char *phy_name;
int oldlink, oldspeed, oldduplex;
u32 msg_enable;
struct net_device *dev;
@@ -1113,7 +1113,7 @@ static int external_switch;
static int __devinit cpmac_probe(struct platform_device *pdev)
{
int rc, phy_id;
- char mdio_bus_id[MII_BUS_ID_SIZE];
+ const char *mdio_bus_id;
struct resource *mem;
struct cpmac_priv *priv;
struct net_device *dev;
@@ -1122,7 +1122,7 @@ static int __devinit cpmac_probe(struct platform_device *pdev)
pdata = pdev->dev.platform_data;

if (external_switch || dumb_switch) {
- strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */
+ mdio_bus_id = kstrdup("0", GFP_KERNEL); /* fixed phys bus */
phy_id = pdev->id;
} else {
for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) {
@@ -1130,7 +1130,7 @@ static int __devinit cpmac_probe(struct platform_device *pdev)
continue;
if (!cpmac_mii->phy_map[phy_id])
continue;
- strncpy(mdio_bus_id, cpmac_mii->id, MII_BUS_ID_SIZE);
+ mdio_bus_id = kstrdup(cpmac_mii->id, GFP_KERNEL);
break;
}
}
@@ -1138,7 +1138,7 @@ static int __devinit cpmac_probe(struct platform_device *pdev)
if (phy_id == PHY_MAX_ADDR) {
dev_err(&pdev->dev, "no PHY present, falling back "
"to switch on MDIO bus 0\n");
- strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */
+ mdio_bus_id = kstrdup("0", GFP_KERNEL); /* fixed phys bus */
phy_id = pdev->id;
}

@@ -1173,8 +1173,8 @@ static int __devinit cpmac_probe(struct platform_device *pdev)
priv->msg_enable = netif_msg_init(debug_level, 0xff);
memcpy(dev->dev_addr, pdata->dev_addr, sizeof(pdata->dev_addr));

- snprintf(priv->phy_name, MII_BUS_ID_SIZE, PHY_ID_FMT,
- mdio_bus_id, phy_id);
+ priv->phy_name= kasprintf(GFP_KERNEL, PHY_ID_FMT, mdio_bus_id, phy_id);
+ kfree(mdio_bus_id);

priv->phy = phy_connect(dev, priv->phy_name, cpmac_adjust_link, 0,
PHY_INTERFACE_MODE_MII);
@@ -1269,7 +1269,7 @@ int __devinit cpmac_init(void)
}

cpmac_mii->phy_mask = ~(mask | 0x80000000);
- snprintf(cpmac_mii->id, MII_BUS_ID_SIZE, "cpmac-1");
+ cpmac_mii->id = kstrdup("cpmac-1", GFP_KERNEL);

res = mdiobus_register(cpmac_mii);
if (res)
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index ef7c9c1..67ddf87 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -313,8 +313,8 @@ static int __devinit davinci_mdio_probe(struct platform_device *pdev)
data->bus->reset = davinci_mdio_reset,
data->bus->parent = dev;
data->bus->priv = data;
- snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s-%x",
- pdev->name, pdev->id);
+ data->bus->id = kasprintf(GFP_KERNEL, "%s-%x",
+ pdev->name, pdev->id);

data->clk = clk_get(dev, NULL);
if (IS_ERR(data->clk)) {
diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c
index 71b785c..8ffacd6 100644
--- a/drivers/net/ethernet/toshiba/tc35815.c
+++ b/drivers/net/ethernet/toshiba/tc35815.c
@@ -682,7 +682,7 @@ static int tc_mii_init(struct net_device *dev)
lp->mii_bus->name = "tc35815_mii_bus";
lp->mii_bus->read = tc_mdio_read;
lp->mii_bus->write = tc_mdio_write;
- snprintf(lp->mii_bus->id, MII_BUS_ID_SIZE, "%x",
+ lp->mii_bus->id = kasprintf(GFP_KERNEL, "%x",
(lp->pci_dev->bus->number << 8) | lp->pci_dev->devfn);
lp->mii_bus->priv = dev;
lp->mii_bus->parent = &lp->pci_dev->dev;
diff --git a/drivers/net/ethernet/xilinx/ll_temac_mdio.c b/drivers/net/ethernet/xilinx/ll_temac_mdio.c
index 8cf9d4f..aa9d0d5 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_mdio.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_mdio.c
@@ -86,7 +86,7 @@ int temac_mdio_setup(struct temac_local *lp, struct device_node *np)
return -ENOMEM;

of_address_to_resource(np, 0, &res);
- snprintf(bus->id, MII_BUS_ID_SIZE, "%.8llx",
+ bus->id = kasprintf(GFP_KERNEL, "%.8llx",
(unsigned long long)res.start);
bus->priv = lp;
bus->name = "Xilinx TEMAC MDIO";
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 79013e5..c476861 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -866,7 +866,7 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
return -ENOMEM;

of_address_to_resource(np, 0, &res);
- snprintf(bus->id, MII_BUS_ID_SIZE, "%.8llx",
+ bus->id = kasprintf(GFP_KERNEL, "%.8llx",
(unsigned long long)res.start);
bus->priv = lp;
bus->name = "Xilinx Emaclite MDIO";
diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index 72a854f..3794959 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -529,7 +529,7 @@ static int ixp4xx_mdio_register(void)
mdio_bus->name = "IXP4xx MII Bus";
mdio_bus->read = &ixp4xx_mdio_read;
mdio_bus->write = &ixp4xx_mdio_write;
- snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "ixp4xx-eth-0");
+ mdio_bus->id = kstrdup("ixp4xx-eth-0", GFP_KERNEL);

if ((err = mdiobus_register(mdio_bus)))
mdiobus_free(mdio_bus);
@@ -1353,7 +1353,7 @@ static int __devinit eth_init_one(struct platform_device *pdev)
struct net_device *dev;
struct eth_plat_info *plat = pdev->dev.platform_data;
u32 regs_phys;
- char phy_id[MII_BUS_ID_SIZE + 3];
+ const char *phy_id;
int err;

if (ptp_filter_init(ptp_filter, ARRAY_SIZE(ptp_filter))) {
@@ -1416,9 +1416,10 @@ static int __devinit eth_init_one(struct platform_device *pdev)
__raw_writel(DEFAULT_CORE_CNTRL, &port->regs->core_control);
udelay(50);

- snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, "0", plat->phy);
+ phy_id = kasprintf(GFP_KERNEL, PHY_ID_FMT, "0", plat->phy);
port->phydev = phy_connect(dev, phy_id, &ixp4xx_adjust_link, 0,
PHY_INTERFACE_MODE_MII);
+ kfree(phy_id);
if (IS_ERR(port->phydev)) {
err = PTR_ERR(port->phydev);
goto err_free_mem;
diff --git a/drivers/net/phy/fixed.c b/drivers/net/phy/fixed.c
index 633680d..947c7e1 100644
--- a/drivers/net/phy/fixed.c
+++ b/drivers/net/phy/fixed.c
@@ -220,7 +220,7 @@ static int __init fixed_mdio_bus_init(void)
goto err_mdiobus_reg;
}

- snprintf(fmb->mii_bus->id, MII_BUS_ID_SIZE, "fixed-0");
+ fmb->mii_bus->id = kstrdup("fixed-0", GFP_KERNEL);
fmb->mii_bus->name = "Fixed MDIO Bus";
fmb->mii_bus->priv = fmb;
fmb->mii_bus->parent = &pdev->dev;
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index 50e8e5e..0a89f0b 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -116,7 +116,7 @@ static struct mii_bus * __devinit mdio_gpio_bus_init(struct device *dev,
if (!new_bus->irq[i])
new_bus->irq[i] = PHY_POLL;

- snprintf(new_bus->id, MII_BUS_ID_SIZE, "gpio-%x", bus_id);
+ new_bus->id = kasprintf(GFP_KERNEL, "gpio-%x", bus_id);

if (gpio_request(bitbang->mdc, "mdc"))
goto out_free_bus;
diff --git a/drivers/net/phy/mdio-octeon.c b/drivers/net/phy/mdio-octeon.c
index 826d961..1158353 100644
--- a/drivers/net/phy/mdio-octeon.c
+++ b/drivers/net/phy/mdio-octeon.c
@@ -118,7 +118,7 @@ static int __devinit octeon_mdiobus_probe(struct platform_device *pdev)
bus->mii_bus->priv = bus;
bus->mii_bus->irq = bus->phy_irq;
bus->mii_bus->name = "mdio-octeon";
- snprintf(bus->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+ bus->mii_bus->id = kasprintf(GFP_KERNEL, "%s-%x",
bus->mii_bus->name, bus->unit);
bus->mii_bus->parent = &pdev->dev;

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index f320f46..6879e86 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -78,7 +78,7 @@ int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
if (!fixup)
return -ENOMEM;

- strlcpy(fixup->bus_id, bus_id, sizeof(fixup->bus_id));
+ fixup->bus_id = kstrdup(bus_id, GFP_KERNEL);
fixup->phy_uid = phy_uid;
fixup->phy_uid_mask = phy_uid_mask;
fixup->run = run;
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 980c079..4150655 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -166,7 +166,7 @@ struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
phy_interface_t iface)
{
struct device_node *net_np;
- char bus_id[MII_BUS_ID_SIZE + 3];
+ const char *bus_id;
struct phy_device *phy;
const __be32 *phy_id;
int sz;
@@ -182,9 +182,10 @@ struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
if (!phy_id || sz < sizeof(*phy_id))
return NULL;

- sprintf(bus_id, PHY_ID_FMT, "0", be32_to_cpu(phy_id[0]));
+ bus_id = kasprintf(GFP_KERNEL, PHY_ID_FMT, "0", be32_to_cpu(phy_id[0]));

phy = phy_connect(dev, bus_id, hndlr, 0, iface);
+ kfree(bus_id);
return IS_ERR(phy) ? NULL : phy;
}
EXPORT_SYMBOL(of_phy_connect_fixed_link);
diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index 2c4069f..5199386 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -5358,7 +5358,7 @@ static int __devinit et131x_pci_setup(struct pci_dev *pdev,
}

adapter->mii_bus->name = "et131x_eth_mii";
- snprintf(adapter->mii_bus->id, MII_BUS_ID_SIZE, "%x",
+ adapter->mii_bus->id = kasprintf(GFP_KERNEL, "%x",
(adapter->pdev->bus->number << 8) | adapter->pdev->devfn);
adapter->mii_bus->priv = netdev;
adapter->mii_bus->read = et131x_mdio_read;
diff --git a/include/linux/phy.h b/include/linux/phy.h
index c599f7e..bf051a7 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -78,12 +78,6 @@ typedef enum {
/* Used when trying to connect to a specific phy (mii bus id:phy device id) */
#define PHY_ID_FMT "%s:%02x"

-/*
- * Need to be a little smaller than phydev->dev.bus_id to leave room
- * for the ":%02x"
- */
-#define MII_BUS_ID_SIZE (20 - 3)
-
/* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
#define MII_ADDR_C45 (1<<30)
@@ -94,7 +88,7 @@ typedef enum {
*/
struct mii_bus {
const char *name;
- char id[MII_BUS_ID_SIZE];
+ const char *id;
void *priv;
int (*read)(struct mii_bus *bus, int phy_id, int regnum);
int (*write)(struct mii_bus *bus, int phy_id, int regnum, u16 val);
@@ -441,7 +435,7 @@ struct phy_driver {
/* A Structure for boards to register fixups with the PHY Lib */
struct phy_fixup {
struct list_head list;
- char bus_id[20];
+ const char *bus_id;
u32 phy_uid;
u32 phy_uid_mask;
int (*run)(struct phy_device *phydev);
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 56cf9b8..ae0e3ea 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -41,7 +41,7 @@ void dsa_slave_mii_bus_init(struct dsa_switch *ds)
ds->slave_mii_bus->name = "dsa slave smi";
ds->slave_mii_bus->read = dsa_slave_phy_read;
ds->slave_mii_bus->write = dsa_slave_phy_write;
- snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "%s:%.2x",
+ ds->slave_mii_bus->id = kasprintf(GFP_KERNEL, "%s:%.2x",
ds->master_mii_bus->id, ds->pd->sw_addr);
ds->slave_mii_bus->parent = &ds->master_mii_bus->dev;
}
--
1.7.0.4


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