linux-kernel - Re: Re: [PATCH net] NFC: nci: fix sleep in atomic context bugs caused by nci_skb

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Message-ID: <72ac1467.16e1f.180cf90a3b6.Coremail.duoming@zju.edu.cn>
Date:   Tue, 17 May 2022 09:10:04 +0800 (GMT+08:00)
From:   duoming@....edu.cn
To:     "Jakub Kicinski" <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, krzysztof.kozlowski@...aro.org,
        linux-kernel@...r.kernel.org, davem@...emloft.net,
        edumazet@...gle.com, pabeni@...hat.com, gregkh@...uxfoundation.org,
        alexander.deucher@....com, broonie@...nel.org
Subject: Re: Re: [PATCH net] NFC: nci: fix sleep in atomic context bugs
 caused by nci_skb_alloc

Hello,

On Mon, 16 May 2022 13:07:05 -0700 Jakub Kicinski wrote:

> On Fri, 13 May 2022 21:33:55 +0800 Duoming Zhou wrote:
> > Fixes: 6a2968aaf50c ("NFC: basic NCI protocol implementation ")
> > Fixes: 11f54f228643 ("NFC: nci: Add HCI over NCI protocol support")
> 
> Are there more bad callers? If st_nci_se_wt_timeout is the only source
> of trouble then the fixes tag should point to when it was added, rather
> than when the callee was added.

The st_nci_se_wt_timeout is the only source of trouble, it was added in
ed06aeefdac3 ("nfc: st-nci: Rename st21nfcb to st-nci"). I will send
patch v2.

Best regards,
Duoming Zhou