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Date:   Fri, 20 Nov 2020 19:10:06 +0000
To:     Colin King <>
Subject: Re: [PATCH][next] octeontx2-pf: Fix unintentional sign extension issue


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 <>
> 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

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