linux-kernel - Re: [PATCH][next] octeontx2-pf: Fix unintentional sign extension issue

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Date:   Fri, 20 Nov 2020 19:10:06 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Colin King <colin.king@...onical.com>
Cc:     sgoutham@...vell.com, gakula@...vell.com, sbhatta@...vell.com,
        hkelam@...vell.com, davem@...emloft.net, kuba@...nel.org,
        naveenm@...vell.com, tduszynski@...vell.com,
        netdev@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] octeontx2-pf: Fix unintentional sign extension issue

Hello:

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

On Wed, 18 Nov 2020 13:05:20 +0000 you wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> The shifting of the u16 result from ntohs(proto) by 16 bits to the
> left will be promoted to a 32 bit signed int and then sign-extended
> to a u64.  In the event that the top bit of the return from ntohs(proto)
> is set then all then all the upper 32 bits of a 64 bit long end up as
> also being set because of the sign-extension. Fix this by casting to
> a u64 long before the shift.
> 
> [...]

Here is the summary with links:
  - [next] octeontx2-pf: Fix unintentional sign extension issue
    https://git.kernel.org/netdev/net-next/c/583b273dea75

You are awesome, thank you!
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