From e3e12f52b214121840b44c91de5b3e5af5d3eb84 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 06 Nov 2023 03:04:41 +0000
Subject: [PATCH] rk3568 rt init
---
kernel/drivers/connector/cn_proc.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/kernel/drivers/connector/cn_proc.c b/kernel/drivers/connector/cn_proc.c
index ad48fd5..c5264b3 100644
--- a/kernel/drivers/connector/cn_proc.c
+++ b/kernel/drivers/connector/cn_proc.c
@@ -32,6 +32,7 @@
#include <linux/pid_namespace.h>
#include <linux/cn_proc.h>
+#include <linux/locallock.h>
/*
* Size of a cn_msg followed by a proc_event structure. Since the
@@ -54,10 +55,11 @@
/* proc_event_counts is used as the sequence number of the netlink message */
static DEFINE_PER_CPU(__u32, proc_event_counts) = { 0 };
+static DEFINE_LOCAL_IRQ_LOCK(send_msg_lock);
static inline void send_msg(struct cn_msg *msg)
{
- preempt_disable();
+ local_lock(send_msg_lock);
msg->seq = __this_cpu_inc_return(proc_event_counts) - 1;
((struct proc_event *)msg->data)->cpu = smp_processor_id();
@@ -70,7 +72,7 @@
*/
cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_NOWAIT);
- preempt_enable();
+ local_unlock(send_msg_lock);
}
void proc_fork_connector(struct task_struct *task)
--
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