From: Kalle Valo <kvalo@kernel.org>
To: "Linux kernel regression tracking \(Thorsten Leemhuis\)"
<regressions@leemhuis.info>
Cc: Bert Karwatzki <spasswolf@web.de>,
Linux regressions mailing list <regressions@lists.linux.dev>,
Lorenzo Bianconi <lorenzo@kernel.org>,
Felix Fietkau <nbd@nbd.name>,
linux-wireless@vger.kernel.org
Subject: Re: [PATCH 6.2-rc3] wifi: mt76: fix dma error
Date: Fri, 13 Jan 2023 18:15:31 +0200 [thread overview]
Message-ID: <87fscebecc.fsf@kernel.org> (raw)
In-Reply-To: <b8a3fa69-a4c2-51b5-d193-d4d933cf6627@leemhuis.info> (Linux kernel regression tracking's message of "Wed, 11 Jan 2023 08:54:12 +0100")
"Linux kernel regression tracking (Thorsten Leemhuis)"
<regressions@leemhuis.info> writes:
> [CCing Felix]
>
> On 10.01.23 23:39, Bert Karwatzki wrote:
>> Since linux-6.2-rc1 the mediatek mt76 wlan driver suffers from problems
>> https://bugzilla.kernel.org/show_bug.cgi?id=216901. I bisected this to
>> commit cd372b8c99c5a5cf6a464acebb7e4a79af7ec8ae and noticed that the
>>
>> if (txwi) {
>> q->entry[q->head].txwi = DMA_DUMMY_DATA;
>> q->entry[q->head].skip_buf0 = true;
>> }
>>
>> part is moved from the beginning of mt76_dma_add_buf to the
>> inside of the for loop. But q->head is modified at the beginning of
>> this loop.
>
> Thx for your patch. TWIMC, a earlier (and tested) patch to address that
> regression can afaics be found here:
>
> https://lore.kernel.org/lkml/3cb53fbd-0bee-22f9-bba2-6ac4a87db521@nbd.name/
>
> Makes me wonder: Felix, btw, did you ever properly submit that patch for
> inclusion? Where? I can't find it with lore. :-/ Or will it be addressed
> by a different patch?
The patch is now in my queue:
https://patchwork.kernel.org/project/linux-wireless/patch/20230113105848.34642-3-nbd@nbd.name/
> /me really hopes we can get this resolved this week before rc4 ships, as
> it seems this regressions bothers quite a few people
If all goes well this should make it to v6.2-rc5.
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2023-01-13 16:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-10 22:39 [PATCH 6.2-rc3] wifi: mt76: fix dma error Bert Karwatzki
2023-01-11 7:54 ` Linux kernel regression tracking (Thorsten Leemhuis)
2023-01-13 16:15 ` Kalle Valo [this message]
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