网线插拔时，内核报一个错误提示

zhongtao

从Git上取最新的openwrt_widora的master分支，重新编译，下载到bit5.1+kit后，系统检测到网线插拔时，会报如下提示

[ 21.590000] rt305x-esw 10110000.esw: link changed 0x01
[ 21.590000] (NULL device *): kill_sig_workq
[ 21.840000] rt305x-esw 10110000.esw: link changed 0x00
[ 21.850000] (NULL device *): kill_sig_workq

请问，这是什么问题，会有什么影响吗？

zhongtao

用原来1.09的版本是没有这个提示的

mangogeek

@zhongtao https://wiki.widora.cn/firmware 这里边的固件有问题吗？

zhongtao

https://wiki.widora.cn/firmware 里的固件没有这个提示，

我重新编译的目的是，按照下面的链接增加RNDIS的支持，
https://sns.widora.cn/topic/612/mt7688-air720-4g简单测试
但是我手里的是华为ME909S模块，它需要增加USB serial的支持，以便通过命令启动RNDIS拨号，但是你附件的版本，还少了一个驱动kmod-usb-serial-option，导致串口不能识别，总之增加需要以下驱动，

kmod-usb-net  
kmod-usb-net-rndis
kmod-usb-serial
kmod-usb-serial-wwan
kmod-usb-serial-option

只是我生成的版本有运行是上面的出错提示，版本是直接从Git取下来，插入模块后的提示如下，模块可以识别，但是只是一次，后面再也不能识别了，可能是我的miniPCI转USB硬件出的问题，因为PC也再不能识别这个模块了，我会重新买一个，再试一下
[ 139.490000] cdc_ether 1-1:2.0 usb0: register 'cdc_ether' at usb-101c0000.ehci-1, CDC Ethernet Device, 02:1e:10:1f:00:00
[ 139.510000] option 1-1:2.2: GSM modem (1-port) converter detected
[ 139.510000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 139.520000] option 1-1:2.3: GSM modem (1-port) converter detected
[ 139.530000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 139.540000] option 1-1:2.4: GSM modem (1-port) converter detected
[ 139.540000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 139.550000] option 1-1:2.5: GSM modem (1-port) converter detected
[ 139.560000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 139.580000] option 1-1:2.6: GSM modem (1-port) converter detected
[ 139.580000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB4
[ 150.450000] usb 1-1: USB disconnect, device number 2
[ 150.450000] cdc_ether 1-1:2.0 usb0: unregister 'cdc_ether' usb-101c0000.ehci-1, CDC Ethernet Device
[ 150.480000] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 150.480000] option 1-1:2.2: device disconnected
[ 150.490000] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 150.500000] option 1-1:2.3: device disconnected
[ 150.500000] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 150.510000] option 1-1:2.4: device disconnected
[ 150.520000] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 150.520000] option 1-1:2.5: device disconnected
[ 150.530000] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 150.540000] option 1-1:2.6: device disconnected

zhongtao

应该只是一条调试信息，容易误解以为系统检查到为空指针

49 target/linux/ramips/patches-3.18/1000-esw_rt3052-update-wan-ip.patch
@@ -444,8 +444,36 @@ static void esw_set_gsc(struct rt305x_es
+void kill_sig_workq(struct work_struct *work)
+{

dev_info(NULL, "kill_sig_workq\n");
```
...
```

+}

mangogeek

@zhongtao 代码有一段时间没动过了，不应该出现不一致的情况。
检查下wifi是否正常？

zhongtao

wifi功能正常，这段代码是最近 2月9日，加到master分支上

Commits on Feb 9, 2020

Merge pull request #21 from Lemon080910/updatewanip

@YuanCM-me
YuanCM-me committed on 9 Feb

Update README.md
@YuanCM-me
YuanCM-me committed on 9 Feb

fix git checkout break on windows
@YuanCM-me
YuanCM-me committed on 9 Feb

Commits on Dec 26, 2019

增加1000-esw_rt3052-update-wan-ip.patch

@Lemon080910
Lemon080910 committed on 26 Dec 2019

mangogeek

想起来了，当时是有人提交了个pr。