From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 419DF3FA5D7; Fri, 27 Mar 2026 17:32:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774632751; cv=none; b=b2CE3RppXor3Xnn44a/P0uEztu4Ptg4zLb44WS/T9kbAnmEX2hgVuekRp7L/pTW7wlZZWEV/1z41SaTduJ9roIpAL8RHAtBO8C6hVa6unTakb6Vk+DwDjV6dZLfayw+YJkb2tfu53ejW2iNDz2cAO78qkafUd6YVZQYoao3QUaM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774632751; c=relaxed/simple; bh=ydMb4+IQ+hhK/QaHD2SxsMw+W+OpnZiZISpWVGow/Qk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=caYjlXEp1LNkujMiXFK+sL60LsofeJvq4QzC3qm8VljRWd32+5wUm65bxZjup6UB5C/ug+VhfI3uDj0APbbiquZMvbJiRCIaSQSa5syS1DDFfZMAC88SID0AQExsPsZyxgNurhzsSqnSZZLJJ3MNre8ZD1ceBShLdciAE6VqKUk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cqOgLT4V; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="cqOgLT4V" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE8B8C19423; Fri, 27 Mar 2026 17:32:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774632751; bh=ydMb4+IQ+hhK/QaHD2SxsMw+W+OpnZiZISpWVGow/Qk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=cqOgLT4Vd1Gdqag5ixeksQVO/HJulYRVJ3W0IVg4L1TbEY4KqbnkipZ+repoMpY8V SKlbB8yPMxVl6i2HbkNP3fACiJQVSZttDas0zigtaC7frMGoDH4FxIqICrgEbEmYc3 A7hnf6+3CPIR8Rir5nK/6JuBm09gvbENZ0WF76Tyz2SxwUm2jw/jelfznshH4b2Mak 8F+ZAAJnEc1pMVvtRB3wwYBXx2Qfb4n0KiLyPXNxO42F/aGbXeVEcRUQSIrDbt3/iK Rzlrl3FRQxnPjsTsjAm1TQ5/7RZlXWILBGSOE364btN+nS6At371AlJqRm2zbXOrz5 iEth5MVwj9HLw== Date: Fri, 27 Mar 2026 17:32:29 +0000 From: Eric Biggers To: Holger Dengler Cc: linux-crypto@vger.kernel.org, Herbert Xu , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org, Harald Freudenberger Subject: Re: [PATCH 1/3] crypto: s390 - Remove des and des3_ede code Message-ID: <20260327173229.GB3407398@google.com> References: <20260326201246.57544-1-ebiggers@kernel.org> <20260326201246.57544-2-ebiggers@kernel.org> <65c3d229-57ee-4980-a13f-bc9661b4dda1@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <65c3d229-57ee-4980-a13f-bc9661b4dda1@linux.ibm.com> On Fri, Mar 27, 2026 at 09:52:31AM +0100, Holger Dengler wrote: > Hi Eric, > > On 26/03/2026 21:12, Eric Biggers wrote: > > Since DES and Triple DES are obsolete, there is very little point in > > maintining architecture-optimized code for them. Remove it. > > > > Signed-off-by: Eric Biggers > > Are there plans to completely remove des/3des in-kernel crypto support from > the kernel or is it just the arch-specific code, that is removed? Just the arch-specific code for now. It will just make these like RC4 and MD4 which are still implemented for compatibility reasons but only with generic C code. Someday (years from now) we should remove all of these entirely, but for now the best we can hope for is simplifying the implementations to just the generic C code. - Eric