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Date: Fri, 20 Dec 2024 08:09:59 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Ariel Otilibili <ariel.otilibili-anieli@eurecom.fr>
Cc: linux-kernel@vger.kernel.org, Jan Beulich <jbeulich@suse.com>,
	stable@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Anthony PERARD <anthony.perard@vates.tech>,
	Michal Orzel <michal.orzel@amd.com>, Julien Grall <julien@xen.org>,
	Roger Pau =?iso-8859-1?Q?Monn=E9?= <roger.pau@citrix.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	xen-devel@lists.xenproject.org
Subject: Re: [PATCH v2 1/1] lib: Remove dead code
Message-ID: <2024122042-guidable-overhand-b8a9@gregkh>
References: <20241219092615.644642-1-ariel.otilibili-anieli@eurecom.fr>
 <20241219224645.749233-1-ariel.otilibili-anieli@eurecom.fr>
 <20241219224645.749233-2-ariel.otilibili-anieli@eurecom.fr>
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In-Reply-To: <20241219224645.749233-2-ariel.otilibili-anieli@eurecom.fr>

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@suse.com>
> Signed-off-by: Ariel Otilibili <ariel.otilibili-anieli@eurecom.fr>
> --
> Cc: stable@vger.kernel.org

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

confused,

greg k-h