This is a note to let you know that I've just added the patch titled
cpufreq: loongson3: Use raw_smp_processor_id() in do_service_request()
to the 6.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cpufreq-loongson3-use-raw_smp_processor_id-in-do_ser.patch
and it can be found in the queue-6.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3644681f29c0dc9331eca176bb94055acb253e0f
Author: Huacai Chen <chenhuacai@xxxxxxxxxx>
Date: Wed Aug 28 14:24:59 2024 +0800
cpufreq: loongson3: Use raw_smp_processor_id() in do_service_request()
[ Upstream commit 2b7ec33e534f7a10033a5cf07794acf48b182bbe ]
Use raw_smp_processor_id() instead of plain smp_processor_id() in
do_service_request(), otherwise we may get some errors with the driver
enabled:
BUG: using smp_processor_id() in preemptible [00000000] code: (udev-worker)/208
caller is loongson3_cpufreq_probe+0x5c/0x250 [loongson3_cpufreq]
Reported-by: Xi Ruoyao <xry111@xxxxxxxxxxx>
Tested-by: Binbin Zhou <zhoubinbin@xxxxxxxxxxx>
Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/cpufreq/loongson3_cpufreq.c b/drivers/cpufreq/loongson3_cpufreq.c
index 5f79b6de127c9..6b5e6798d9a28 100644
--- a/drivers/cpufreq/loongson3_cpufreq.c
+++ b/drivers/cpufreq/loongson3_cpufreq.c
@@ -176,7 +176,7 @@ static DEFINE_PER_CPU(struct loongson3_freq_data *, freq_data);
static inline int do_service_request(u32 id, u32 info, u32 cmd, u32 val, u32 extra)
{
int retries;
- unsigned int cpu = smp_processor_id();
+ unsigned int cpu = raw_smp_processor_id();
unsigned int package = cpu_data[cpu].package;
union smc_message msg, last;
