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[PATCH] USB: usb-net: removes redundant return
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removes all redundant collecting of the return value from
get/set_registers() and suchlike.  can't remember who put all of those
some time ago, but they doesn't make any sense to me.  where needed only
a few references remained;

Signed-off-by: Petko Manolov <petkan@nucleusys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@gregkh
Petko Manolov authored and gregkh committed Jan 4, 2006
1 parent 87c4252 commit 4a1728a
Showing 1 changed file with 51 additions and 55 deletions.
106 changes: 51 additions & 55 deletions drivers/usb/net/pegasus.c
View file
Expand Up @@ -45,7 +45,7 @@
/*
* Version Information
*/
#define DRIVER_VERSION "v0.6.12 (2005/01/13)"
#define DRIVER_VERSION "v0.6.13 (2005/11/13)"
#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"

Expand Down Expand Up @@ -113,7 +113,7 @@ static void ctrl_callback(struct urb *urb, struct pt_regs *regs)
break;
default:
if (netif_msg_drv(pegasus))
dev_err(&pegasus->intf->dev, "%s, status %d\n",
dev_dbg(&pegasus->intf->dev, "%s, status %d\n",
__FUNCTION__, urb->status);
}
pegasus->flags &= ~ETH_REGS_CHANGED;
Expand Down Expand Up @@ -308,9 +308,9 @@ static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd)
__le16 regdi;
int ret;

ret = set_register(pegasus, PhyCtrl, 0);
ret = set_registers(pegasus, PhyAddr, sizeof (data), data);
ret = set_register(pegasus, PhyCtrl, (indx | PHY_READ));
set_register(pegasus, PhyCtrl, 0);
set_registers(pegasus, PhyAddr, sizeof (data), data);
set_register(pegasus, PhyCtrl, (indx | PHY_READ));
for (i = 0; i < REG_TIMEOUT; i++) {
ret = get_registers(pegasus, PhyCtrl, 1, data);
if (data[0] & PHY_DONE)
Expand All @@ -319,12 +319,12 @@ static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd)
if (i < REG_TIMEOUT) {
ret = get_registers(pegasus, PhyData, 2, &regdi);
*regd = le16_to_cpu(regdi);
return 1;
return ret;
}
if (netif_msg_drv(pegasus))
dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__);

return 0;
return ret;
}

static int mdio_read(struct net_device *dev, int phy_id, int loc)
Expand All @@ -344,20 +344,20 @@ static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd)

data[1] = (u8) regd;
data[2] = (u8) (regd >> 8);
ret = set_register(pegasus, PhyCtrl, 0);
ret = set_registers(pegasus, PhyAddr, sizeof(data), data);
ret = set_register(pegasus, PhyCtrl, (indx | PHY_WRITE));
set_register(pegasus, PhyCtrl, 0);
set_registers(pegasus, PhyAddr, sizeof(data), data);
set_register(pegasus, PhyCtrl, (indx | PHY_WRITE));
for (i = 0; i < REG_TIMEOUT; i++) {
ret = get_registers(pegasus, PhyCtrl, 1, data);
if (data[0] & PHY_DONE)
break;
}
if (i < REG_TIMEOUT)
return 0;
return ret;

if (netif_msg_drv(pegasus))
dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__);
return 1;
return -ETIMEDOUT;
}

static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
Expand All @@ -374,9 +374,9 @@ static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata)
__le16 retdatai;
int ret;

ret = set_register(pegasus, EpromCtrl, 0);
ret = set_register(pegasus, EpromOffset, index);
ret = set_register(pegasus, EpromCtrl, EPROM_READ);
set_register(pegasus, EpromCtrl, 0);
set_register(pegasus, EpromOffset, index);
set_register(pegasus, EpromCtrl, EPROM_READ);

for (i = 0; i < REG_TIMEOUT; i++) {
ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
Expand All @@ -386,12 +386,12 @@ static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata)
if (i < REG_TIMEOUT) {
ret = get_registers(pegasus, EpromData, 2, &retdatai);
*retdata = le16_to_cpu(retdatai);
return 0;
return ret;
}

if (netif_msg_drv(pegasus))
dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__);
return -1;
return -ETIMEDOUT;
}

#ifdef PEGASUS_WRITE_EEPROM
Expand All @@ -400,18 +400,18 @@ static inline void enable_eprom_write(pegasus_t * pegasus)
__u8 tmp;
int ret;

ret = get_registers(pegasus, EthCtrl2, 1, &tmp);
ret = set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
get_registers(pegasus, EthCtrl2, 1, &tmp);
set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
}

static inline void disable_eprom_write(pegasus_t * pegasus)
{
__u8 tmp;
int ret;

ret = get_registers(pegasus, EthCtrl2, 1, &tmp);
ret = set_register(pegasus, EpromCtrl, 0);
ret = set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
get_registers(pegasus, EthCtrl2, 1, &tmp);
set_register(pegasus, EpromCtrl, 0);
set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
}

static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data)
Expand All @@ -420,11 +420,11 @@ static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data)
__u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
int ret;

ret = set_registers(pegasus, EpromOffset, 4, d);
set_registers(pegasus, EpromOffset, 4, d);
enable_eprom_write(pegasus);
ret = set_register(pegasus, EpromOffset, index);
ret = set_registers(pegasus, EpromData, 2, &data);
ret = set_register(pegasus, EpromCtrl, EPROM_WRITE);
set_register(pegasus, EpromOffset, index);
set_registers(pegasus, EpromData, 2, &data);
set_register(pegasus, EpromCtrl, EPROM_WRITE);

for (i = 0; i < REG_TIMEOUT; i++) {
ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
Expand All @@ -433,10 +433,10 @@ static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data)
}
disable_eprom_write(pegasus);
if (i < REG_TIMEOUT)
return 0;
return ret;
if (netif_msg_drv(pegasus))
dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__);
return -1;
return -ETIMEDOUT;
}
#endif /* PEGASUS_WRITE_EEPROM */

Expand All @@ -454,41 +454,39 @@ static inline void get_node_id(pegasus_t * pegasus, __u8 * id)
static void set_ethernet_addr(pegasus_t * pegasus)
{
__u8 node_id[6];
int ret;

get_node_id(pegasus, node_id);
ret = set_registers(pegasus, EthID, sizeof (node_id), node_id);
set_registers(pegasus, EthID, sizeof (node_id), node_id);
memcpy(pegasus->net->dev_addr, node_id, sizeof (node_id));
}

static inline int reset_mac(pegasus_t * pegasus)
{
__u8 data = 0x8;
int i;
int ret;

ret = set_register(pegasus, EthCtrl1, data);
set_register(pegasus, EthCtrl1, data);
for (i = 0; i < REG_TIMEOUT; i++) {
ret = get_registers(pegasus, EthCtrl1, 1, &data);
get_registers(pegasus, EthCtrl1, 1, &data);
if (~data & 0x08) {
if (loopback & 1)
break;
if (mii_mode && (pegasus->features & HAS_HOME_PNA))
ret = set_register(pegasus, Gpio1, 0x34);
set_register(pegasus, Gpio1, 0x34);
else
ret = set_register(pegasus, Gpio1, 0x26);
ret = set_register(pegasus, Gpio0, pegasus->features);
ret = set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
set_register(pegasus, Gpio1, 0x26);
set_register(pegasus, Gpio0, pegasus->features);
set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
break;
}
}
if (i == REG_TIMEOUT)
return 1;
return -ETIMEDOUT;

if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
ret = set_register(pegasus, Gpio0, 0x24);
ret = set_register(pegasus, Gpio0, 0x26);
set_register(pegasus, Gpio0, 0x24);
set_register(pegasus, Gpio0, 0x26);
}
if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
__u16 auxmode;
Expand Down Expand Up @@ -527,7 +525,7 @@ static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
write_mii_word(pegasus, 0, 0x1b, auxmode | 4);
}

return 0;
return ret;
}

static void fill_skb_pool(pegasus_t * pegasus)
Expand Down Expand Up @@ -881,9 +879,8 @@ static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev)
static inline void disable_net_traffic(pegasus_t * pegasus)
{
int tmp = 0;
int ret;

ret = set_registers(pegasus, EthCtrl0, 2, &tmp);
set_registers(pegasus, EthCtrl0, 2, &tmp);
}

static inline void get_interrupt_interval(pegasus_t * pegasus)
Expand Down Expand Up @@ -1206,33 +1203,32 @@ static __u8 mii_phy_probe(pegasus_t * pegasus)
static inline void setup_pegasus_II(pegasus_t * pegasus)
{
__u8 data = 0xa5;
int ret;

ret = set_register(pegasus, Reg1d, 0);
ret = set_register(pegasus, Reg7b, 1);
set_register(pegasus, Reg1d, 0);
set_register(pegasus, Reg7b, 1);
mdelay(100);
if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
ret = set_register(pegasus, Reg7b, 0);
set_register(pegasus, Reg7b, 0);
else
ret = set_register(pegasus, Reg7b, 2);
set_register(pegasus, Reg7b, 2);

ret = set_register(pegasus, 0x83, data);
ret = get_registers(pegasus, 0x83, 1, &data);
set_register(pegasus, 0x83, data);
get_registers(pegasus, 0x83, 1, &data);

if (data == 0xa5) {
pegasus->chip = 0x8513;
} else {
pegasus->chip = 0;
}

ret = set_register(pegasus, 0x80, 0xc0);
ret = set_register(pegasus, 0x83, 0xff);
ret = set_register(pegasus, 0x84, 0x01);
set_register(pegasus, 0x80, 0xc0);
set_register(pegasus, 0x83, 0xff);
set_register(pegasus, 0x84, 0x01);

if (pegasus->features & HAS_HOME_PNA && mii_mode)
ret = set_register(pegasus, Reg81, 6);
set_register(pegasus, Reg81, 6);
else
ret = set_register(pegasus, Reg81, 2);
set_register(pegasus, Reg81, 2);
}


Expand Down

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