linux-kernel - Re: [PATCH v2 1/1] lib: Remove dead code

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Message-ID: <2024122042-guidable-overhand-b8a9@gregkh>
Date: Fri, 20 Dec 2024 08:09:59 +0100
From: Greg KH <gregkh@...uxfoundation.org>
To: Ariel Otilibili <ariel.otilibili-anieli@...ecom.fr>
Cc: linux-kernel@...r.kernel.org, Jan Beulich <jbeulich@...e.com>,
	stable@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	Anthony PERARD <anthony.perard@...es.tech>,
	Michal Orzel <michal.orzel@....com>, Julien Grall <julien@....org>,
	Roger Pau Monné <roger.pau@...rix.com>,
	Stefano Stabellini <sstabellini@...nel.org>,
	xen-devel@...ts.xenproject.org
Subject: Re: [PATCH v2 1/1] lib: Remove dead code

On Thu, Dec 19, 2024 at 11:45:01PM +0100, Ariel Otilibili wrote:
> This is a follow up from a discussion in Xen:
> 
> The if-statement tests `res` is non-zero; meaning the case zero is never reached.
> 
> Link: https://lore.kernel.org/all/7587b503-b2ca-4476-8dc9-e9683d4ca5f0@suse.com/
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Suggested-by: Jan Beulich <jbeulich@...e.com>
> Signed-off-by: Ariel Otilibili <ariel.otilibili-anieli@...ecom.fr>
> --
> Cc: stable@...r.kernel.org

Why is "removing dead code" a stable kernel thing?

confused,

greg k-h