From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (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 D583F353A70 for ; Tue, 8 Sep 2026 19:32:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788895982; cv=none; b=kNZIcsHj0w3rqQGJ8ZtZbTZBqVmU4o9MHbmLRubcGBM5JF8r6xLVY/BCBiSlbXCIIP76w0TC0T0nJUAgzMFitjjrOaEWnhU7OWLpSb5b2XlTOCE2j1G41J7iu5Htl98GQjNOA0A1yCI0P7F+WBjjszI6NHg+xgSKDDhdgPI80FY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788895982; c=relaxed/simple; bh=PsmvxiniHeaenvgUByMKyc1Seh9VNZoo6AhTYZzDViA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ctlKNIpCF6dEd9hyOEwDKrCizd8wBlcn/qTeWBjKDgrMfb3cNKVzp3yUlo9DHOWpZi6DlrvG9UIx7aTZALRgV47tECQ9m2CU64ElQJ/ZbwlUdPhz0a4MD1bHDkXWNofBuUvp7zRCB2wLDwR39qYPl+KHWiDTfzPbITEHRj9t1fM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=cwg+fHP6; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="cwg+fHP6" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 7ABD340E01F9; Tue, 8 Sep 2026 19:32:57 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id EOvuZCCfcmsb; Tue, 8 Sep 2026 19:32:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1788895967; bh=CSxdJl4VBmqHBG2bWI7rm0ZQwyV1SRPcqmp/fkG/2Fc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=cwg+fHP68U1E4MZ59lLpLK/8gQ6qCUXS7fi5N32ugrohWQjHI6hDpvpxTWRIE5Uhn p6GUxO/I9ZXLuYKmVbEuMqDqRrGw5eI4prsmMRnlGxCY4C4+TTQ1Q97gBYJa3GCdmv ASmk0yH1wCK1RvHvz+mp8scgjIluUYfD+ejJtJmyjcJRYecg3WnfY+Hwcq4DB0i0zE L2m+h1SAkafW6bkrpr8pNiBUSa+gdznsgnLq1PMzc/pBupjiqfExCFGUPNvEY8TSrP cL7dfrs1tAC9t9AOfJM8duIPbsCHZZbehvFl0cvQdGC3KSJ4V2P7IKZwmKMGohEph8 7KAVVlgS9yOdoDDWPurPqj+d5p6nsY7ROShKx9SQa8LK2DVdR9tOLAc7GC7pWoM++w VJO05TcWaSy6da/m+C2WftviWAvOtriATkGbNX1L3Yhb15QMwYatOukSuqqXDXOMo+ 5eJxuquCtyeN7sVE3Dxgjvhlb9ZN/EAqkVNrzKWQuogJ86EvXw//L8RmpUpAj0dl3Z /11ogNuRl0PeDHKTpqMJa96NpNeh/dY16TGIXH3JGLbLWrAWpgKYPwK2ZiVP/+KDxM vBGlz8imGLf75+JzTvp248YRm3SiWdd9NdJx4kCbAVkcABxryoqq4N5zIjSrv6tUKn cGqY+ntuQUYJ7gzDyyyd1aa0= Received: from stx.tnic (unknown [IPv6:2600:1700:38ca:c00::42]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id D3FB040E01DD; Tue, 8 Sep 2026 19:32:32 +0000 (UTC) Date: Tue, 8 Sep 2026 12:32:29 -0700 From: Borislav Petkov To: Mauricio Faria de Oliveira Cc: "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , Dave Hansen , x86@kernel.org, Juergen Gross , Alexey Dobriyan , Boris Ostrovsky , Jan Beulich , Brian Gerst , kernel-dev@igalia.com, linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org Subject: Re: [PATCH v9 2/5] x86/asm, x86/boot: expose inline memcmp() Message-ID: <20260908193229.GFaqBizWcssBoewNSo@fat_crate.local> References: <20260822-pvh-kasan-inline-v9-0-e70ef3b75b6a@igalia.com> <20260822-pvh-kasan-inline-v9-2-e70ef3b75b6a@igalia.com> <20260906170116.GRap2cXOY6ENSzAXUJ@fat_crate.local> 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=utf-8 Content-Disposition: inline In-Reply-To: On Tue, Sep 08, 2026 at 03:04:53PM -0300, Mauricio Faria de Oliveira wrote: > Boris, perhaps the approach here could be changed to add an actual > memcmp()-like inline implementation (e.g., as provided in a previous > revision, without return value differences), or continue with the > memeq()-like memcmp() from arch/x86/boot/ but rename it to memeq() ? Nah, new functionality is not needed. We can add it later when it is really needed. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette