linux-kernel - Re: [PATCH v2] qed/qed_dev: guard against a possible division by zero

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Date:   Tue, 14 Mar 2023 00:10:18 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Daniil Tatianin <d-tatianin@...dex-team.ru>
Cc:     aelior@...vell.com, manishc@...vell.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        Yuval.Mintz@...gic.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, simon.horman@...igine.com
Subject: Re: [PATCH v2] qed/qed_dev: guard against a possible division by zero

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Thu,  9 Mar 2023 23:15:56 +0300 you wrote:
> Previously we would divide total_left_rate by zero if num_vports
> happened to be 1 because non_requested_count is calculated as
> num_vports - req_count. Guard against this by validating num_vports at
> the beginning and returning an error otherwise.
> 
> Found by Linux Verification Center (linuxtesting.org) with the SVACE
> static analysis tool.
> 
> [...]

Here is the summary with links:
  - [v2] qed/qed_dev: guard against a possible division by zero
    https://git.kernel.org/netdev/net/c/1a9dc5610ef8

You are awesome, thank you!
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