From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/net/802/mrp.c |   18 +++++++++++++-----
 1 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/kernel/net/802/mrp.c b/kernel/net/802/mrp.c
index 35e04cc..c10a432 100644
--- a/kernel/net/802/mrp.c
+++ b/kernel/net/802/mrp.c
@@ -606,7 +606,10 @@
 	spin_unlock(&app->lock);
 
 	mrp_queue_xmit(app);
-	mrp_join_timer_arm(app);
+	spin_lock(&app->lock);
+	if (likely(app->active))
+		mrp_join_timer_arm(app);
+	spin_unlock(&app->lock);
 }
 
 static void mrp_periodic_timer_arm(struct mrp_applicant *app)
@@ -620,11 +623,12 @@
 	struct mrp_applicant *app = from_timer(app, t, periodic_timer);
 
 	spin_lock(&app->lock);
-	mrp_mad_event(app, MRP_EVENT_PERIODIC);
-	mrp_pdu_queue(app);
+	if (likely(app->active)) {
+		mrp_mad_event(app, MRP_EVENT_PERIODIC);
+		mrp_pdu_queue(app);
+		mrp_periodic_timer_arm(app);
+	}
 	spin_unlock(&app->lock);
-
-	mrp_periodic_timer_arm(app);
 }
 
 static int mrp_pdu_parse_end_mark(struct sk_buff *skb, int *offset)
@@ -872,6 +876,7 @@
 	app->dev = dev;
 	app->app = appl;
 	app->mad = RB_ROOT;
+	app->active = true;
 	spin_lock_init(&app->lock);
 	skb_queue_head_init(&app->queue);
 	rcu_assign_pointer(dev->mrp_port->applicants[appl->type], app);
@@ -900,6 +905,9 @@
 
 	RCU_INIT_POINTER(port->applicants[appl->type], NULL);
 
+	spin_lock_bh(&app->lock);
+	app->active = false;
+	spin_unlock_bh(&app->lock);
 	/* Delete timer and generate a final TX event to flush out
 	 * all pending messages before the applicant is gone.
 	 */

--
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