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authorSergei Shtylyov <sergei.shtylyov@cogentembedded.com>2014-01-05 03:21:52 +0300
committerDavid S. Miller <davem@davemloft.net>2014-01-04 19:27:58 -0500
commite62a768f55ce8df1d092b5d93357dcc0894d8060 (patch)
tree87814ce767cf08427044f2a48b0ce1ad04632877 /drivers/net
parent4017b4d3212b7b9d979d7174cbe340c9acbb4666 (diff)
phy: kill useless local variables
A number of functions (especially in phy.c) has local variables that were hardly needed in the first place -- remove them. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/phy/phy.c55
-rw-r--r--drivers/net/phy/phy_device.c10
2 files changed, 18 insertions, 47 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 056706aa9fbc..8ea5b0d13316 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -67,12 +67,10 @@ EXPORT_SYMBOL(phy_print_status);
*/
static int phy_clear_interrupt(struct phy_device *phydev)
{
- int err = 0;
-
if (phydev->drv->ack_interrupt)
- err = phydev->drv->ack_interrupt(phydev);
+ return phydev->drv->ack_interrupt(phydev);
- return err;
+ return 0;
}
/**
@@ -84,13 +82,11 @@ static int phy_clear_interrupt(struct phy_device *phydev)
*/
static int phy_config_interrupt(struct phy_device *phydev, u32 interrupts)
{
- int err = 0;
-
phydev->interrupts = interrupts;
if (phydev->drv->config_intr)
- err = phydev->drv->config_intr(phydev);
+ return phydev->drv->config_intr(phydev);
- return err;
+ return 0;
}
@@ -314,7 +310,6 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
{
struct mii_ioctl_data *mii_data = if_mii(ifr);
u16 val = mii_data->val_in;
- int ret = 0;
switch (cmd) {
case SIOCGMIIPHY:
@@ -324,7 +319,7 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
case SIOCGMIIREG:
mii_data->val_out = mdiobus_read(phydev->bus, mii_data->phy_id,
mii_data->reg_num);
- break;
+ return 0;
case SIOCSMIIREG:
if (mii_data->phy_id == phydev->addr) {
@@ -358,8 +353,8 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
if (mii_data->reg_num == MII_BMCR &&
val & BMCR_RESET)
- ret = phy_init_hw(phydev);
- break;
+ return phy_init_hw(phydev);
+ return 0;
case SIOCSHWTSTAMP:
if (phydev->drv->hwtstamp)
@@ -369,8 +364,6 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
default:
return -EOPNOTSUPP;
}
-
- return ret;
}
EXPORT_SYMBOL(phy_mii_ioctl);
@@ -557,8 +550,6 @@ phy_err:
*/
int phy_start_interrupts(struct phy_device *phydev)
{
- int err = 0;
-
atomic_set(&phydev->irq_disable, 0);
if (request_irq(phydev->irq, phy_interrupt,
IRQF_SHARED,
@@ -570,9 +561,7 @@ int phy_start_interrupts(struct phy_device *phydev)
return 0;
}
- err = phy_enable_interrupts(phydev);
-
- return err;
+ return phy_enable_interrupts(phydev);
}
EXPORT_SYMBOL(phy_start_interrupts);
@@ -615,7 +604,6 @@ EXPORT_SYMBOL(phy_stop_interrupts);
*/
void phy_change(struct work_struct *work)
{
- int err;
struct phy_device *phydev =
container_of(work, struct phy_device, phy_queue);
@@ -623,9 +611,7 @@ void phy_change(struct work_struct *work)
!phydev->drv->did_interrupt(phydev))
goto ignore;
- err = phy_disable_interrupts(phydev);
-
- if (err)
+ if (phy_disable_interrupts(phydev))
goto phy_err;
mutex_lock(&phydev->lock);
@@ -637,10 +623,8 @@ void phy_change(struct work_struct *work)
enable_irq(phydev->irq);
/* Reenable interrupts */
- if (PHY_HALTED != phydev->state)
- err = phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED);
-
- if (err)
+ if (PHY_HALTED != phydev->state &&
+ phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED))
goto irq_enable_err;
/* reschedule state queue work to run as soon as possible */
@@ -953,14 +937,10 @@ static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
static int phy_read_mmd_indirect(struct mii_bus *bus, int prtad, int devad,
int addr)
{
- u32 ret;
-
mmd_phy_indirect(bus, prtad, devad, addr);
/* Read the content of the MMD's selected register */
- ret = bus->read(bus, addr, MII_MMD_DATA);
-
- return ret;
+ return bus->read(bus, addr, MII_MMD_DATA);
}
/**
@@ -1000,8 +980,6 @@ static void phy_write_mmd_indirect(struct mii_bus *bus, int prtad, int devad,
*/
int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
{
- int ret = -EPROTONOSUPPORT;
-
/* According to 802.3az,the EEE is supported only in full duplex-mode.
* Also EEE feature is active when core is operating with MII, GMII
* or RGMII.
@@ -1027,7 +1005,7 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
if (!cap)
- goto eee_exit;
+ return -EPROTONOSUPPORT;
/* Check which link settings negotiated and verify it in
* the EEE advertising registers.
@@ -1046,7 +1024,7 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
idx = phy_find_setting(phydev->speed, phydev->duplex);
if (!(lp & adv & settings[idx].setting))
- goto eee_exit;
+ return -EPROTONOSUPPORT;
if (clk_stop_enable) {
/* Configure the PHY to stop receiving xMII
@@ -1063,11 +1041,10 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
MDIO_MMD_PCS, phydev->addr, val);
}
- ret = 0; /* EEE supported */
+ return 0; /* EEE supported */
}
-eee_exit:
- return ret;
+ return -EPROTONOSUPPORT;
}
EXPORT_SYMBOL(phy_init_eee);
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 5f9ee61a4ab5..c5100aa5e9ad 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -327,7 +327,6 @@ static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
{
struct phy_c45_device_ids c45_ids = {0};
- struct phy_device *dev = NULL;
u32 phy_id = 0;
int r;
@@ -339,9 +338,7 @@ struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
if ((phy_id & 0x1fffffff) == 0x1fffffff)
return NULL;
- dev = phy_device_create(bus, addr, phy_id, is_c45, &c45_ids);
-
- return dev;
+ return phy_device_create(bus, addr, phy_id, is_c45, &c45_ids);
}
EXPORT_SYMBOL(get_phy_device);
@@ -781,7 +778,6 @@ static int genphy_config_advert(struct phy_device *phydev)
*/
int genphy_setup_forced(struct phy_device *phydev)
{
- int err;
int ctl = 0;
phydev->pause = 0;
@@ -795,9 +791,7 @@ int genphy_setup_forced(struct phy_device *phydev)
if (DUPLEX_FULL == phydev->duplex)
ctl |= BMCR_FULLDPLX;
- err = phy_write(phydev, MII_BMCR, ctl);
-
- return err;
+ return phy_write(phydev, MII_BMCR, ctl);
}
EXPORT_SYMBOL(genphy_setup_forced);