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/arch/s390/include/asm/percpu.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/arch/s390/include/asm/percpu.h b/kernel/arch/s390/include/asm/percpu.h
index 918f0ba..5e26e2c 100644
--- a/kernel/arch/s390/include/asm/percpu.h
+++ b/kernel/arch/s390/include/asm/percpu.h
@@ -31,7 +31,7 @@
pcp_op_T__ *ptr__; \
preempt_disable_notrace(); \
ptr__ = raw_cpu_ptr(&(pcp)); \
- prev__ = *ptr__; \
+ prev__ = READ_ONCE(*ptr__); \
do { \
old__ = prev__; \
new__ = old__ op (val); \
--
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