linux-kernel - Re: [PATCH] wifi: ath11k: fix SAC bug on peer addition with sta band migration

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Date:   Mon, 20 Feb 2023 08:57:51 +0000 (UTC)
From:   Kalle Valo <kvalo@...nel.org>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Christian Marangi <ansuelsmth@...il.com>,
        ath11k@...ts.infradead.org, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dan Carpenter <error27@...il.com>
Subject: Re: [PATCH] wifi: ath11k: fix SAC bug on peer addition with sta band
 migration

Christian Marangi <ansuelsmth@...il.com> wrote:

> Fix sleep in atomic context warning detected by Smatch static checker
> analyzer.
> 
> Following the locking pattern for peer_rhash_add lock tbl_mtx_lock mutex
> always even if sta is not transitioning to another band.
> This is peer_add function and a more secure locking should not cause
> performance regression.
> 
> Fixes: d673cb6fe6c0 ("wifi: ath11k: fix peer addition/deletion error on sta band migration")
> Reported-by: Dan Carpenter <error27@...il.com>
> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> Signed-off-by: Kalle Valo <quic_kvalo@...cinc.com>

I assume you only compile tested this and I'll add that to the commit log. It's
always good to know how the patch was tested.

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230209222622.1751-1-ansuelsmth@gmail.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches