linux-kernel - Re: [PATCH] net: ethtool: avoid rebuilds on UTS

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Date: Wed, 21 Feb 2024 20:25:00 +0100
From: Jann Horn <jannh@...gle.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
	John Garry <john.g.garry@...cle.com>
Subject: Re: [PATCH] net: ethtool: avoid rebuilds on UTS_RELEASE change

On Wed, Feb 21, 2024 at 8:23 PM Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Tue, 20 Feb 2024 20:42:44 +0100 Jann Horn wrote:
> > Currently, when you switch between branches or something like that and
> > rebuild, net/ethtool/ioctl.c has to be built again because it depends
> > on UTS_RELEASE.
> >
> > By instead referencing a string variable stored in another object file,
> > this can be avoided.
> >
> > Signed-off-by: Jann Horn <jannh@...gle.com>
> > ---
> > (alternatively we could also use the utsname info from the current UTS
> > namespace, but that'd be a bit of a behavior change, and I wanted to
> > keep this change a no-op)
>
> Is this related to John's work from:
> https://lore.kernel.org/all/20240131104851.2311358-1-john.g.garry@oracle.com/
> ?

Ah, I didn't see his patch, but that seems like he had the same idea
(but implemented it less sloppily). You can drop this one then...