enable lvds 1280x800

hc

2023-11-20 0d8657dd3056063fb115946b10157477b5c70451

 kernel/drivers/connector/cn_proc.c
..
..
@@ -32,6 +32,7 @@
32
32
 #include <linux/pid_namespace.h>
33
33
 
34
34
 #include <linux/cn_proc.h>
35
+#include <linux/locallock.h>
35
36
 
36
37
 /*
37
38
  * Size of a cn_msg followed by a proc_event structure.  Since the
..
..
@@ -54,10 +55,11 @@
54
55
 
55
56
 /* proc_event_counts is used as the sequence number of the netlink message */
56
57
 static DEFINE_PER_CPU(__u32, proc_event_counts) = { 0 };
58
+static DEFINE_LOCAL_IRQ_LOCK(send_msg_lock);
57
59
 
58
60
 static inline void send_msg(struct cn_msg *msg)
59
61
 {
60
-	preempt_disable();
62
+	local_lock(send_msg_lock);
61
63
 
62
64
 	msg->seq = __this_cpu_inc_return(proc_event_counts) - 1;
63
65
 	((struct proc_event *)msg->data)->cpu = smp_processor_id();
..
..
@@ -70,7 +72,7 @@
70
72
 	 */
71
73
 	cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_NOWAIT);
72
74
 
73
-	preempt_enable();
75
+	local_unlock(send_msg_lock);
74
76
 }
75
77
 
76
78
 void proc_fork_connector(struct task_struct *task)