From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lamorak.hansenpartnership.com (lamorak.hansenpartnership.com [198.37.111.173]) (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 BE10D336ECE; Mon, 26 Jan 2026 13:56:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.37.111.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769435821; cv=none; b=uxDviZxMZK9Vtmm/vf0TYGgvCrb/XQRfK1tO7ujBLuku6gCNUJ8lZEBOpS/9losfCSaoDDyhV+vb9e5n+3L0Cgv99OooRFO7vqLdBLM13af0F6D+pNjaQxOqouXCXE6Y6nBLN1IfCemx3tsU46EZukNm35GW1vIjlRSvFvqpau4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769435821; c=relaxed/simple; bh=h0hbjcbt6BwljIZokuDzLx6MwKLmX4sDcb5+eZtRCKs=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=UoW7MZLc8thhvLvbjIqYIByLjQTOK2m2hvEgxJSfpUIWIxW9BTGKmnaXwjqOCxcN/UBQnueUOKoQ2IdjV8pmlGG49N9ElQhVBwpwSeOO67S1UV3iJbx5Kubwndfi//r+xjmV3Y6zBSJSOsZMaa/2SDjOo1Znv4q0tHccfEBuUxQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=HansenPartnership.com; spf=pass smtp.mailfrom=HansenPartnership.com; dkim=pass (1024-bit key) header.d=hansenpartnership.com header.i=@hansenpartnership.com header.b=mwjsEOxZ; arc=none smtp.client-ip=198.37.111.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=HansenPartnership.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=HansenPartnership.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=hansenpartnership.com header.i=@hansenpartnership.com header.b="mwjsEOxZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=hansenpartnership.com; s=20151216; t=1769435818; bh=h0hbjcbt6BwljIZokuDzLx6MwKLmX4sDcb5+eZtRCKs=; h=Message-ID:Subject:From:To:Date:In-Reply-To:References:From; b=mwjsEOxZzOJhqrFdTA/CD1ZwRcZ0++KU0VKjzvg7yxlI1vtk1kJi662Ci1jigel/z qUcSbBGi1yb1mcVykD9a9XEPzvn6Z+2ZUvoFqehC+iTKaLm2DVKM0e3Z39z8ghmXbh pB8DSrkVQ6XOWVyDGvpm8sZvLzuf4pnUvOk/zYds= Received: from lingrow.int.hansenpartnership.com (unknown [IPv6:2601:5c4:4300:d341::a774]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lamorak.hansenpartnership.com (Postfix) with ESMTPSA id 0B1FA1C0209; Mon, 26 Jan 2026 08:56:58 -0500 (EST) Message-ID: <20bf043651015bbd7e24f7f14d9043996455c5ba.camel@HansenPartnership.com> Subject: Re: [PATCH v14 4/5] pkcs7, x509: Add ML-DSA support From: James Bottomley To: David Howells , Jarkko Sakkinen Cc: Lukas Wunner , Ignat Korchagin , Herbert Xu , Eric Biggers , Luis Chamberlain , Petr Pavlu , Daniel Gomez , Sami Tolvanen , "Jason A . Donenfeld" , Ard Biesheuvel , Stephan Mueller , linux-crypto@vger.kernel.org, keyrings@vger.kernel.org, linux-modules@vger.kernel.org, linux-kernel@vger.kernel.org Date: Mon, 26 Jan 2026 08:56:57 -0500 In-Reply-To: <1903448.1769426738@warthog.procyon.org.uk> References: <20260121223609.1650735-1-dhowells@redhat.com> <20260121223609.1650735-5-dhowells@redhat.com> <1903448.1769426738@warthog.procyon.org.uk> Autocrypt: addr=James.Bottomley@HansenPartnership.com; prefer-encrypt=mutual; keydata=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 AHBLpBdnl9SOe8ETkv6GqbZrXUED/dAbRVIT5vHP51zyYB8rAUjp3PnzxsXFG8eQaacEyKSl0DKDlgKuQ+k292LVGJhEva8z4cwg3JcrQWzbpTRskQRP624aQ7t0LKbNfXqfYT13TvZNTDdjQaCJRJ3EG8uXOszVKuc0guXunZPmmq6x1Y3bOfOezcFYoywwL3nKef+Z5sQrjG3/5NLeu+W Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Mon, 2026-01-26 at 11:25 +0000, David Howells wrote: > Jarkko Sakkinen wrote: >=20 > > Why don't we have a constant for "none"? > >=20 > > $ git grep "\"none\"" security/ > > security/apparmor/audit.c:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 "none", > > security/apparmor/lib.c:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 { "n= one", DEBUG_NONE }, > > security/security.c:=C2=A0=C2=A0=C2=A0 [LOCKDOWN_NONE] =3D "none", > >=20 > > $ git grep "\"none\"" crypto > > crypto/asymmetric_keys/public_key.c:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 > > =C2=A0=C2=A0=C2=A0=C2=A0 hash_algo =3D "none"; > > crypto/asymmetric_keys/public_key.c:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 > > hash_algo =3D "none"; > > crypto/testmgr.h: * PKCS#1 RSA test vectors for hash algorithm > > "none" > >=20 > > IMHO, this a bad practice. >=20 > You'd think that the compiler and linker ought to be able to deal > with read-only string sharing within compilation units. They do ... it's -fmerge-string-constants, which has been enabled in gcc for any optimization level above 0 for ages. The way its supposed to work is that each string gets its own rodata section and the linker eliminates duplicates. > =C2=A0 I don't particularly want to deal with combining every "none" > string within the kernel into one within this patchset. Agree: let's just rely on the tools and if they're not getting it right someone can fix the tools. Regards, James