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Subject[PATCH 1/2] net: ethernet: smsc: smsc911x: use phydev from struct net_device
Date
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
---
drivers/net/ethernet/smsc/smsc911x.c | 66 ++++++++++++++++------------------
1 files changed, 31 insertions(+), 35 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index b5ab5e1..6fded67 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -114,7 +114,6 @@ struct smsc911x_data {
/* spinlock to ensure register accesses are serialised */
spinlock_t dev_lock;

- struct phy_device *phy_dev;
struct mii_bus *mii_bus;
unsigned int using_extphy;
int last_duplex;
@@ -833,7 +832,7 @@ static int smsc911x_phy_reset(struct smsc911x_data *pdata)
static int smsc911x_phy_loopbacktest(struct net_device *dev)
{
struct smsc911x_data *pdata = netdev_priv(dev);
- struct phy_device *phy_dev = pdata->phy_dev;
+ struct phy_device *phy_dev = dev->phydev;
int result = -EIO;
unsigned int i, val;
unsigned long flags;
@@ -903,7 +902,8 @@ static int smsc911x_phy_loopbacktest(struct net_device *dev)

static void smsc911x_phy_update_flowcontrol(struct smsc911x_data *pdata)
{
- struct phy_device *phy_dev = pdata->phy_dev;
+ struct net_device *ndev = pdata->dev;
+ struct phy_device *phy_dev = ndev->phydev;
u32 afc = smsc911x_reg_read(pdata, AFC_CFG);
u32 flow;
unsigned long flags;
@@ -944,7 +944,7 @@ static void smsc911x_phy_update_flowcontrol(struct smsc911x_data *pdata)
static void smsc911x_phy_adjust_link(struct net_device *dev)
{
struct smsc911x_data *pdata = netdev_priv(dev);
- struct phy_device *phy_dev = pdata->phy_dev;
+ struct phy_device *phy_dev = dev->phydev;
unsigned long flags;
int carrier;

@@ -1037,7 +1037,6 @@ static int smsc911x_mii_probe(struct net_device *dev)
SUPPORTED_Asym_Pause);
phydev->advertising = phydev->supported;

- pdata->phy_dev = phydev;
pdata->last_duplex = -1;
pdata->last_carrier = -1;

@@ -1338,9 +1337,11 @@ static void smsc911x_rx_multicast_update_workaround(struct smsc911x_data *pdata)

static int smsc911x_phy_general_power_up(struct smsc911x_data *pdata)
{
+ struct net_device *ndev = pdata->dev;
+ struct phy_device *phy_dev = ndev->phydev;
int rc = 0;

- if (!pdata->phy_dev)
+ if (!phy_dev)
return rc;

/* If the internal PHY is in General Power-Down mode, all, except the
@@ -1350,7 +1351,7 @@ static int smsc911x_phy_general_power_up(struct smsc911x_data *pdata)
* In that case, clear the bit 0.11, so the PHY powers up and we can
* access to the phy registers.
*/
- rc = phy_read(pdata->phy_dev, MII_BMCR);
+ rc = phy_read(phy_dev, MII_BMCR);
if (rc < 0) {
SMSC_WARN(pdata, drv, "Failed reading PHY control reg");
return rc;
@@ -1360,7 +1361,7 @@ static int smsc911x_phy_general_power_up(struct smsc911x_data *pdata)
* disable the general power down-mode.
*/
if (rc & BMCR_PDOWN) {
- rc = phy_write(pdata->phy_dev, MII_BMCR, rc & ~BMCR_PDOWN);
+ rc = phy_write(phy_dev, MII_BMCR, rc & ~BMCR_PDOWN);
if (rc < 0) {
SMSC_WARN(pdata, drv, "Failed writing PHY control reg");
return rc;
@@ -1374,12 +1375,14 @@ static int smsc911x_phy_general_power_up(struct smsc911x_data *pdata)

static int smsc911x_phy_disable_energy_detect(struct smsc911x_data *pdata)
{
+ struct net_device *ndev = pdata->dev;
+ struct phy_device *phy_dev = ndev->phydev;
int rc = 0;

- if (!pdata->phy_dev)
+ if (!phy_dev)
return rc;

- rc = phy_read(pdata->phy_dev, MII_LAN83C185_CTRL_STATUS);
+ rc = phy_read(phy_dev, MII_LAN83C185_CTRL_STATUS);

if (rc < 0) {
SMSC_WARN(pdata, drv, "Failed reading PHY control reg");
@@ -1389,7 +1392,7 @@ static int smsc911x_phy_disable_energy_detect(struct smsc911x_data *pdata)
/* Only disable if energy detect mode is already enabled */
if (rc & MII_LAN83C185_EDPWRDOWN) {
/* Disable energy detect mode for this SMSC Transceivers */
- rc = phy_write(pdata->phy_dev, MII_LAN83C185_CTRL_STATUS,
+ rc = phy_write(phy_dev, MII_LAN83C185_CTRL_STATUS,
rc & (~MII_LAN83C185_EDPWRDOWN));

if (rc < 0) {
@@ -1405,12 +1408,14 @@ static int smsc911x_phy_disable_energy_detect(struct smsc911x_data *pdata)

static int smsc911x_phy_enable_energy_detect(struct smsc911x_data *pdata)
{
+ struct net_device *ndev = pdata->dev;
+ struct phy_device *phy_dev = ndev->phydev;
int rc = 0;

- if (!pdata->phy_dev)
+ if (!phy_dev)
return rc;

- rc = phy_read(pdata->phy_dev, MII_LAN83C185_CTRL_STATUS);
+ rc = phy_read(phy_dev, MII_LAN83C185_CTRL_STATUS);

if (rc < 0) {
SMSC_WARN(pdata, drv, "Failed reading PHY control reg");
@@ -1420,7 +1425,7 @@ static int smsc911x_phy_enable_energy_detect(struct smsc911x_data *pdata)
/* Only enable if energy detect mode is already disabled */
if (!(rc & MII_LAN83C185_EDPWRDOWN)) {
/* Enable energy detect mode for this SMSC Transceivers */
- rc = phy_write(pdata->phy_dev, MII_LAN83C185_CTRL_STATUS,
+ rc = phy_write(phy_dev, MII_LAN83C185_CTRL_STATUS,
rc | MII_LAN83C185_EDPWRDOWN);

if (rc < 0) {
@@ -1517,7 +1522,7 @@ static int smsc911x_open(struct net_device *dev)
unsigned int intcfg;

/* if the phy is not yet registered, retry later*/
- if (!pdata->phy_dev) {
+ if (!dev->phydev) {
SMSC_WARN(pdata, hw, "phy_dev is NULL");
return -EAGAIN;
}
@@ -1608,7 +1613,7 @@ static int smsc911x_open(struct net_device *dev)
pdata->last_carrier = -1;

/* Bring the PHY up */
- phy_start(pdata->phy_dev);
+ phy_start(dev->phydev);

temp = smsc911x_reg_read(pdata, HW_CFG);
/* Preserve TX FIFO size and external PHY configuration */
@@ -1663,8 +1668,8 @@ static int smsc911x_stop(struct net_device *dev)
smsc911x_tx_update_txcounters(dev);

/* Bring the PHY down */
- if (pdata->phy_dev)
- phy_stop(pdata->phy_dev);
+ if (dev->phydev)
+ phy_stop(dev->phydev);

SMSC_TRACE(pdata, ifdown, "Interface stopped");
return 0;
@@ -1904,30 +1909,24 @@ static int smsc911x_set_mac_address(struct net_device *dev, void *p)
/* Standard ioctls for mii-tool */
static int smsc911x_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
- struct smsc911x_data *pdata = netdev_priv(dev);
-
- if (!netif_running(dev) || !pdata->phy_dev)
+ if (!netif_running(dev) || !dev->phydev)
return -EINVAL;

- return phy_mii_ioctl(pdata->phy_dev, ifr, cmd);
+ return phy_mii_ioctl(dev->phydev, ifr, cmd);
}

static int
smsc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- struct smsc911x_data *pdata = netdev_priv(dev);
-
cmd->maxtxpkt = 1;
cmd->maxrxpkt = 1;
- return phy_ethtool_gset(pdata->phy_dev, cmd);
+ return phy_ethtool_gset(dev->phydev, cmd);
}

static int
smsc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- struct smsc911x_data *pdata = netdev_priv(dev);
-
- return phy_ethtool_sset(pdata->phy_dev, cmd);
+ return phy_ethtool_sset(dev->phydev, cmd);
}

static void smsc911x_ethtool_getdrvinfo(struct net_device *dev,
@@ -1941,9 +1940,7 @@ static void smsc911x_ethtool_getdrvinfo(struct net_device *dev,

static int smsc911x_ethtool_nwayreset(struct net_device *dev)
{
- struct smsc911x_data *pdata = netdev_priv(dev);
-
- return phy_start_aneg(pdata->phy_dev);
+ return phy_start_aneg(dev->phydev);
}

static u32 smsc911x_ethtool_getmsglevel(struct net_device *dev)
@@ -1969,7 +1966,7 @@ smsc911x_ethtool_getregs(struct net_device *dev, struct ethtool_regs *regs,
void *buf)
{
struct smsc911x_data *pdata = netdev_priv(dev);
- struct phy_device *phy_dev = pdata->phy_dev;
+ struct phy_device *phy_dev = dev->phydev;
unsigned long flags;
unsigned int i;
unsigned int j = 0;
@@ -2308,12 +2305,11 @@ static int smsc911x_drv_remove(struct platform_device *pdev)
pdata = netdev_priv(dev);
BUG_ON(!pdata);
BUG_ON(!pdata->ioaddr);
- BUG_ON(!pdata->phy_dev);
+ BUG_ON(!dev->phydev);

SMSC_TRACE(pdata, ifdown, "Stopping driver");

- phy_disconnect(pdata->phy_dev);
- pdata->phy_dev = NULL;
+ phy_disconnect(dev->phydev);
mdiobus_unregister(pdata->mii_bus);
mdiobus_free(pdata->mii_bus);

--
1.7.4.4
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