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Merge pull request #21 from Lemon080910/updatewanip
增加1000-esw_rt3052-update-wan-ip.patchwan口热插拔时更新ip
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target/linux/ramips/patches-3.18/1000-esw_rt3052-update-wan-ip.patch
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| Index: linux-3.18.29/drivers/net/ethernet/ralink/esw_rt3052.c | ||
| =================================================================== | ||
| --- linux-3.18.29.orig/drivers/net/ethernet/ralink/esw_rt3052.c | ||
| +++ linux-3.18.29/drivers/net/ethernet/ralink/esw_rt3052.c | ||
| @@ -444,8 +444,36 @@ static void esw_set_gsc(struct rt305x_es | ||
|
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||
| static int esw_apply_config(struct switch_dev *dev); | ||
|
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||
| +struct work_struct kill_sig_wq; | ||
| + | ||
| +void kill_sig_workq(struct work_struct *work) | ||
| +{ | ||
| + dev_info(NULL, "kill_sig_workq\n"); | ||
| + struct file *fp; | ||
| + char pid[8]; | ||
| + struct task_struct *p = NULL; | ||
| + //read udhcpc pid from file, and send signal USR2,USR1 to get a new IP | ||
| + fp = filp_open("/var/run/udhcpc-eth0.2.pid", O_RDONLY, 0); | ||
| + if (IS_ERR(fp)){ | ||
| + return; | ||
| + } | ||
| + | ||
| + if (fp->f_op && fp->f_op->read) { | ||
| + if (fp->f_op->read(fp, pid, 8, &fp->f_pos) > 0) { | ||
| + p = pid_task(find_get_pid(simple_strtoul(pid, NULL, 10)), PIDTYPE_PID); | ||
| + if (NULL != p) { | ||
| + send_sig(SIGUSR2, p, 0); | ||
| + send_sig(SIGUSR1, p, 0); | ||
| + } | ||
| + } | ||
| + } | ||
| + filp_close(fp, NULL); | ||
| + | ||
| +} | ||
| + | ||
| static void esw_hw_init(struct rt305x_esw *esw) | ||
| { | ||
| + INIT_WORK(&kill_sig_wq, kill_sig_workq); | ||
| int i; | ||
| u8 port_disable = 0; | ||
| u8 port_map = RT305X_ESW_PMAP_LLLLLL; | ||
| @@ -734,6 +762,7 @@ static irqreturn_t esw_interrupt(int irq | ||
| link >>= RT305X_ESW_POA_LINK_SHIFT; | ||
| link &= RT305X_ESW_POA_LINK_MASK; | ||
| dev_info(esw->dev, "link changed 0x%02X\n", link); | ||
| + schedule_work(&kill_sig_wq); | ||
| } | ||
| esw_w32(esw, status, RT305X_ESW_REG_ISR); | ||
|
|