From 6871438cc4e5307ccda70fa2a246a546300ac9fa Mon Sep 17 00:00:00 2001 From: hayeswang Date: Fri, 11 Apr 2014 17:54:31 +0800 Subject: [PATCH] r8152: check RTL8152_UNPLUG When the device is unplugged, the driver would try to disable the device. Add checking the flag of RTL8152_UNPLUG to skip setting the device when it is unplugged. This could shorten the time of unloading the driver. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 48 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 18e12a3f7fc3..3fbfb0869030 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -929,6 +929,9 @@ static int read_mii_word(struct net_device *netdev, int phy_id, int reg) struct r8152 *tp = netdev_priv(netdev); int ret; + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return -ENODEV; + if (phy_id != R8152_PHY_ID) return -EINVAL; @@ -949,6 +952,9 @@ void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val) { struct r8152 *tp = netdev_priv(netdev); + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + if (phy_id != R8152_PHY_ID) return; @@ -1962,6 +1968,9 @@ static int rtl_enable(struct r8152 *tp) static int rtl8152_enable(struct r8152 *tp) { + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return -ENODEV; + set_tx_qlen(tp); rtl_set_eee_plus(tp); @@ -1994,6 +2003,9 @@ static void r8153_set_rx_agg(struct r8152 *tp) static int rtl8153_enable(struct r8152 *tp) { + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return -ENODEV; + set_tx_qlen(tp); rtl_set_eee_plus(tp); r8153_set_rx_agg(tp); @@ -2006,6 +2018,11 @@ static void rtl8152_disable(struct r8152 *tp) u32 ocp_data; int i; + if (test_bit(RTL8152_UNPLUG, &tp->flags)) { + rtl_drop_queued_tx(tp); + return; + } + ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); ocp_data &= ~RCR_ACPT_ALL; ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); @@ -2232,6 +2249,9 @@ static void r8152b_exit_oob(struct r8152 *tp) u32 ocp_data; int i; + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); ocp_data &= ~RCR_ACPT_ALL; ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); @@ -2460,6 +2480,9 @@ static void r8153_first_init(struct r8152 *tp) u32 ocp_data; int i; + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + rxdy_gated_en(tp, true); r8153_teredo_off(tp); @@ -2687,6 +2710,11 @@ out: static void rtl8152_down(struct r8152 *tp) { + if (test_bit(RTL8152_UNPLUG, &tp->flags)) { + rtl_drop_queued_tx(tp); + return; + } + r8152_power_cut_en(tp, false); r8152b_disable_aldps(tp); r8152b_enter_oob(tp); @@ -2695,6 +2723,11 @@ static void rtl8152_down(struct r8152 *tp) static void rtl8153_down(struct r8152 *tp) { + if (test_bit(RTL8152_UNPLUG, &tp->flags)) { + rtl_drop_queued_tx(tp); + return; + } + r8153_u1u2en(tp, false); r8153_power_cut_en(tp, false); r8153_disable_aldps(tp); @@ -2904,6 +2937,9 @@ static void r8152b_init(struct r8152 *tp) { u32 ocp_data; + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + if (tp->version == RTL_VER_01) { ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE); ocp_data &= ~LED_MODE_MASK; @@ -2939,6 +2975,9 @@ static void r8153_init(struct r8152 *tp) u32 ocp_data; int i; + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + r8153_u1u2en(tp, false); for (i = 0; i < 500; i++) { @@ -3213,6 +3252,9 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) struct mii_ioctl_data *data = if_mii(rq); int res; + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return -ENODEV; + res = usb_autopm_get_interface(tp->intf); if (res < 0) goto out; @@ -3293,12 +3335,18 @@ static void r8152b_get_version(struct r8152 *tp) static void rtl8152_unload(struct r8152 *tp) { + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + if (tp->version != RTL_VER_01) r8152_power_cut_en(tp, true); } static void rtl8153_unload(struct r8152 *tp) { + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + r8153_power_cut_en(tp, true); } -- 2.20.1