linux-kernel - Re: [PATCH] ethtool: Fix and simplify ethtool_convert_link_mode_to_legacy

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Message-Id: <165518821360.28798.10787116939755170787.git-patchwork-notify@kernel.org>
Date:   Tue, 14 Jun 2022 06:30:13 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Marco Bonelli <marco@...eim.net>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ethtool: Fix and simplify
 ethtool_convert_link_mode_to_legacy_u32()

Hello:

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

On Thu,  9 Jun 2022 15:49:01 +0200 you wrote:
> Fix the implementation of ethtool_convert_link_mode_to_legacy_u32(), which
> is supposed to return false if src has bits higher than 31 set. The current
> implementation uses the complement of bitmap_fill(ext, 32) to test high
> bits of src, which is wrong as bitmap_fill() fills _with long granularity_,
> and sizeof(long) can be > 4. No users of this function currently check the
> return value, so the bug was dormant.
> 
> [...]

Here is the summary with links:
  - ethtool: Fix and simplify ethtool_convert_link_mode_to_legacy_u32()
    https://git.kernel.org/netdev/net-next/c/19d62f5eeaa0

You are awesome, thank you!
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