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r8152: use test_and_clear_bit 

Replace test_bit() followed by clear_bit() with test_and_clear_bit().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
hayeswang 2016-01-07 17:51:11 +08:00 committed by David S. Miller
parent 01dd194c38
commit 216a8349d3
1 changed files with 6 additions and 14 deletions
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20
drivers/net/usb/r8152.c
View File

@ -1938,7 +1938,6 @@ static void _rtl8152_set_rx_mode(struct net_device *netdev)
__le32 tmp[2];
u32 ocp_data;
clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
netif_stop_queue(netdev);
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
ocp_data &= ~RCR_ACPT_ALL;
@ -2424,8 +2423,6 @@ static void rtl_phy_reset(struct r8152 *tp)
u16 data;
int i;
clear_bit(PHY_RESET, &tp->flags);
data = r8152_mdio_read(tp, MII_BMCR);
/* don't reset again before the previous one complete */
@ -2884,10 +2881,9 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
r8152_mdio_write(tp, MII_ADVERTISE, anar);
r8152_mdio_write(tp, MII_BMCR, bmcr);
if (test_bit(PHY_RESET, &tp->flags)) {
if (test_and_clear_bit(PHY_RESET, &tp->flags)) {
int i;
clear_bit(PHY_RESET, &tp->flags);
for (i = 0; i < 50; i++) {
msleep(20);
if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
@ -2896,7 +2892,6 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
}
out:
return ret;
}
@ -2983,7 +2978,6 @@ static void set_carrier(struct r8152 *tp)
struct net_device *netdev = tp->netdev;
u8 speed;
clear_bit(RTL8152_LINK_CHG, &tp->flags);
speed = rtl8152_get_speed(tp);
if (speed & LINK_STATUS) {
@ -3026,20 +3020,18 @@ static void rtl_work_func_t(struct work_struct *work)
goto out1;
}
if (test_bit(RTL8152_LINK_CHG, &tp->flags))
if (test_and_clear_bit(RTL8152_LINK_CHG, &tp->flags))
set_carrier(tp);
if (test_bit(RTL8152_SET_RX_MODE, &tp->flags))
if (test_and_clear_bit(RTL8152_SET_RX_MODE, &tp->flags))
_rtl8152_set_rx_mode(tp->netdev);
/* don't schedule napi before linking */
if (test_bit(SCHEDULE_NAPI, &tp->flags) &&
netif_carrier_ok(tp->netdev)) {
clear_bit(SCHEDULE_NAPI, &tp->flags);
if (test_and_clear_bit(SCHEDULE_NAPI, &tp->flags) &&
netif_carrier_ok(tp->netdev))
napi_schedule(&tp->napi);
}
if (test_bit(PHY_RESET, &tp->flags))
if (test_and_clear_bit(PHY_RESET, &tp->flags))
rtl_phy_reset(tp);
mutex_unlock(&tp->control);