linux-kernel - Re: [PATCH][next] net: dsa: ksz: Make reg_mib

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Message-Id: <161964421006.17892.589586233736680474.git-patchwork-notify@kernel.org>
Date:   Wed, 28 Apr 2021 21:10:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Colin King <colin.king@...onical.com>
Cc:     woojung.huh@...rochip.com, UNGLinuxDriver@...rochip.com,
        andrew@...n.ch, vivien.didelot@...il.com, f.fainelli@...il.com,
        olteanv@...il.com, davem@...emloft.net, kuba@...nel.org,
        marex@...x.de, Tristram.Ha@...rochip.com, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] net: dsa: ksz: Make reg_mib_cnt a u8 as it never
 exceeds 255

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Wed, 28 Apr 2021 13:00:10 +0100 you wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently the for-loop in ksz8_port_init_cnt is causing a static
> analysis infinite loop warning with the comparison of
> mib->cnt_ptr < dev->reg_mib_cnt. This occurs because mib->cnt_ptr
> is a u8 and dev->reg_mib_cnt is an int and the analyzer determines
> that mib->cnt_ptr potentially can wrap around to zero if the value
> in dev->reg_mib_cnt is > 255. However, this value is never this
> large, it is always less than 256 so make reg_mib_cnt a u8.
> 
> [...]

Here is the summary with links:
  - [next] net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
    https://git.kernel.org/netdev/net-next/c/12c2bb96c3f1

You are awesome, thank you!
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