linux-kernel - Re: [PATCH] cpufreq: loongson3: Use raw_smp_processor_id() in do_service

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Message-ID: <20240903090133.tqmsitybuutzsup5@vireshk-i7>
Date: Tue, 3 Sep 2024 14:31:33 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Huacai Chen <chenhuacai@...ngson.cn>
Cc: "Rafael J . Wysocki" <rafael@...nel.org>,
	Huacai Chen <chenhuacai@...nel.org>, loongarch@...ts.linux.dev,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Xuerui Wang <kernel@...0n.name>,
	Jiaxun Yang <jiaxun.yang@...goat.com>,
	Xi Ruoyao <xry111@...111.site>,
	Binbin Zhou <zhoubinbin@...ngson.cn>
Subject: Re: [PATCH] cpufreq: loongson3: Use raw_smp_processor_id() in
 do_service_request()

On 28-08-24, 14:24, Huacai Chen wrote:
> 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@...111.site>
> Tested-by: Binbin Zhou <zhoubinbin@...ngson.cn>
> Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
> ---
>  drivers/cpufreq/loongson3_cpufreq.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied. Thanks.

-- 
viresh