linux-kernel - Re: [PATCH] cpufreq: Fix get_cpu_device() failed in add_cpu_dev

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Message-ID: <20211201072304.5j44qi6bbgdx3hhv@vireshk-i7>
Date:   Wed, 1 Dec 2021 12:53:04 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Xiongfeng Wang <wangxiongfeng2@...wei.com>,
        Linux PM <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Hanjun Guo <guohanjun@...wei.com>
Subject: Re: [PATCH] cpufreq: Fix get_cpu_device() failed in
 add_cpu_dev_symlink()

On 30-11-21, 12:42, Rafael J. Wysocki wrote:
> This is the real hot-add path which isn't tested on a regular basis.

Ahh, I thought this is a simple offline/online thing. Makes sense now.

> > Anyway the patch is okay,
> 
> It would be good to add a Fixes: tag to it, though.  Any idea about
> the commit this should point to?

This is broken since a very long time then, we need to get this into all stable
kernels we care about.

As Xiongfeng pointed out, 2f0ba790df51 ("cpufreq: Fix creation of symbolic links
to policy directories") looks to be a good candidate.

-- 
viresh