linux-kernel - Re: [PATCH][next] mac80211: minstrel_ht: fix infinite loop because supported is not being shifted

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Message-ID: <accffa31-b954-0dcd-6c42-44fad63b96e2@nbd.name>
Date:   Fri, 23 Aug 2019 13:07:37 +0200
From:   Felix Fietkau <nbd@....name>
To:     Colin King <colin.king@...onical.com>,
        Johannes Berg <johannes@...solutions.net>,
        "David S . Miller" <davem@...emloft.net>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] mac80211: minstrel_ht: fix infinite loop because
 supported is not being shifted

On 2019-08-22 14:20, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently the for-loop will spin forever if variable supported is
> non-zero because supported is never changed.  Fix this by adding in
> the missing right shift of supported.
> 
> Addresses-Coverity: ("Infinite loop")
> Fixes: 48cb39522a9d ("mac80211: minstrel_ht: improve rate probing for devices with static fallback")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
Acked-by: Felix Fietkau <nbd@....name>

Thanks,

- Felix