From: Kalle Valo <kvalo@codeaurora.org>
To: Miaoqing Pan <miaoqing@codeaurora.org>
Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org,
Miaoqing Pan <miaoqing@codeaurora.org>
Subject: Re: [PATCH] ath11k: fix potential wmi_mgmt_tx_queue race condition
Date: Wed, 24 Feb 2021 06:53:23 +0000 (UTC) [thread overview]
Message-ID: <20210224065323.67BBBC433ED@smtp.codeaurora.org> (raw)
In-Reply-To: <1613630709-704-1-git-send-email-miaoqing@codeaurora.org>
Miaoqing Pan <miaoqing@codeaurora.org> wrote:
> There is a potential race condition between skb_queue_len()
> and skb_queue_tail(), the former may get old value before
> updated by the latter.
>
> So use skb_queue_len_lockless() instead. And also use '>=',
> in case we queue a few SKBs simultaneously.
>
> Found while discussing a similar fix for ath10k:
> https://patchwork.kernel.org/project/linux-wireless/patch/1608515579-1066-1-git-send-email-miaoqing@codeaurora.org/
>
> No functional changes, compile tested only.
>
> Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Patch applied to ath-next branch of ath.git, thanks.
3808a18043a8 ath11k: fix potential wmi_mgmt_tx_queue race condition
--
https://patchwork.kernel.org/project/linux-wireless/patch/1613630709-704-1-git-send-email-miaoqing@codeaurora.org/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
next prev parent reply other threads:[~2021-02-24 6:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-18 6:45 [PATCH] ath11k: fix potential wmi_mgmt_tx_queue race condition Miaoqing Pan
2021-02-18 6:45 ` Miaoqing Pan
2021-02-24 6:53 ` Kalle Valo [this message]
2021-02-24 6:53 ` Kalle Valo
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