From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 A375039E191; Thu, 30 Jul 2026 23:40:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785454853; cv=none; b=HEDkhFPXqDcsGjzchI9/uYx35EE6I79SbKvHQgrhEpqSgfX92QNlYAYIZRN6zl9bFCvVDOn8eha95qPHUz8RUfXL8d/a4VYvTLyvnGArtwSlyp2ootKDqvvaE2s5JuoTZVmp3Gu+mcXibwqYXzagsP3IDWz8XUTi9O6OpkhCQnk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785454853; c=relaxed/simple; bh=iBNd4K+O4tno7LXYELuL3uAd+WPSyAbldMr9oM3VMKo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=eMjf/t3OZl9dO/BlkAqi+vPlj18C6pqqdITUvodLeCtfqZct/hV8POjtsnHr/sK3fJCbzSr2i1J/AJ2lb5RE6TNN06Cnw6FfrYvw9qUrvp+I1mRc8S0NSjmHTf/bEwr1leUtKzwYWoW7DFeYSnmcr32CIICOIYR0JAyeRDmMUvA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hyY23R6k; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hyY23R6k" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F6901F000E9; Thu, 30 Jul 2026 23:40:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785454851; bh=H07kJpzbq3Hf65M0/NsKGMsxVsYpVDaw4sf2gDu2Lfs=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=hyY23R6kNcDsGqR9CnHDy+2L2E9FpG5zbiakWGA3tnCJ82tnDU3ByK8Zjm63T7HEg OxVwHmNkZasV6uTMtFSfkflWGZLwt2MuGDoOLlX+THF11XYNogFI9hcYQFq21tWSxB IiON8mat8caB7+zC2Nhg4f3TDINAkWsV/RA0I5HwJUWE68XX3QqPJcUuvFtNZvw6fh X1g0Xxon+6zuXREcdfLeiPjY3yEVpJBxzkQXKO5PfSpfyiri6VutrqgVvAUslbG+mW STx5fJcMil6zy2QPnqemHt04IVBopGvpG88211PueeilEYvJblBasDbX6Rqj2pJvPL Jxo89pbn2hlqw== Date: Thu, 30 Jul 2026 16:40:50 -0700 From: Kees Cook To: Heiko Carstens Cc: Stefan Schulze Frielinghaus , Juergen Christ , Ilya Leoshkevich , Dominik Steenken , Alexander Gordeev , Sven Schnelle , Vasily Gorbik , Christian Borntraeger , Maxim Khmelevskii , Jens Remus , Sami Tolvanen , Nathan Chancellor , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , llvm@lists.linux.dev, bpf@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 0/6] s390: Add kCFI support Message-ID: <202607301639.13BBC08@keescook> References: <20260727140514.116501-1-hca@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-s390@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: <20260727140514.116501-1-hca@linux.ibm.com> On Mon, Jul 27, 2026 at 04:05:07PM +0200, Heiko Carstens wrote: > Add s390 kCFI support using the generic support provided by clang. Awesome! Is there anyone you know that might be able to review the GCC KCFI series[1], perhaps with an eye towards providing the s390 back-end implementation? -Kees [1] https://inbox.sourceware.org/gcc-patches/20260716005527.it.950-kees@kernel.org/ -- Kees Cook