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Subject: Re: [PATCH 4/4] mt76: mt76x02: run mt76x02_edcca_init atomically in
 mt76_edcca_set
To:     Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Cc:     Lorenzo Bianconi <lorenzo@kernel.org>,
        linux-wireless <linux-wireless@vger.kernel.org>,
        Stanislaw Gruszka <sgruszka@redhat.com>
References: <cover.1557567465.git.lorenzo@kernel.org>
 <436469e1a4c1e0c11ae43a0b002378708d31f15d.1557567465.git.lorenzo@kernel.org>
 <97ef0073-6dae-f9d1-e97f-9aadaa629628@nbd.name>
 <CAJ0CqmW8RyBmn1_-M0gQGvLOsTd45kAji7wmurs-GHBLac9Dyg@mail.gmail.com>
From:   Felix Fietkau <nbd@nbd.name>
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Message-ID: <b1f8f1c1-a3f5-d94d-1790-320350578100@nbd.name>
Date:   Sat, 11 May 2019 16:30:02 +0200
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On 2019-05-11 16:29, Lorenzo Bianconi wrote:
>>
>> On 2019-05-11 12:17, Lorenzo Bianconi wrote:
>> > Run mt76x02_edcca_init atomically in mt76_edcca_set since it runs
>> > concurrently with calibration work and mt76x2_set_channel.
>> > Introduce __mt76x02_edcca_init helper routine
>> >
>> > Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
>> I don't think this is enough. To prevent issues with calibration, we
>> probably need to hold the mutex for the duration of the calibration
>> anyway. Otherwise it might get enabled right in the middle of it and
>> screw things up.
>> Also, it probably simplifies the patch if you don't add the wrapper
>> function that takes the mutex, and instead just explicitly take the
>> mutex where needed.
> 
> So IIUC it would be better to hold the mutex during
> mt76x2_phy_calibrate processing, right?
Right.

> If so, do I need to repost all the series or just this patch?
Feel free to repost just this patch.

Thanks,

- Felix