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Wed, 29 Jul 2026 12:10:39 +0000 (GMT) Received: from osiris (unknown [9.111.35.133]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTPS; Wed, 29 Jul 2026 12:10:39 +0000 (GMT) Date: Wed, 29 Jul 2026 14:10:38 +0200 From: Heiko Carstens To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi Cc: Stefan Schulze Frielinghaus , Juergen Christ , Ilya Leoshkevich , Dominik Steenken , Alexander Gordeev , Sven Schnelle , Vasily Gorbik , Christian Borntraeger , Maxim Khmelevskii , Jens Remus , Sami Tolvanen , Kees Cook , Nathan Chancellor , llvm@lists.linux.dev, bpf@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 5/6] s390/bpf: Add kCFI support Message-ID: <20260729121038.61563B0b-hca@linux.ibm.com> References: <20260727140514.116501-1-hca@linux.ibm.com> <20260727140514.116501-6-hca@linux.ibm.com> Precedence: bulk X-Mailing-List: bpf@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: <20260727140514.116501-6-hca@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: vdYLXFcGAPhI7mf8OoJmErwEAOBd-ZQ- X-Proofpoint-ORIG-GUID: FT13Cf57YFQ1AUZ755YxBpVsfgqzXSlf X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI5MDA5NyBTYWx0ZWRfX4taZ+FZ9fkzB JtxgNFr2M5IENz0zM5+5VGEUJLKQcE1ZMW77Muk5CctYSBfXf25L/SWxofV09/ms3Qkrpnipcy8 wCUgvSY+w95JX77UmY7SDQH5jGytybI= X-Authority-Analysis: v=2.4 cv=dYuwG3Xe c=1 sm=1 tr=0 ts=6a69edc5 cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=kj9zAlcOel0A:10 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=naD7qE6c7dX3dS7GAa8A:9 a=CjuIK1q_8ugA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI5MDA5NyBTYWx0ZWRfXz53qNzmvaFXn tmy9x24lk42zvmUip7s5KCE1DSN6JveN2dbQRUVG+KJAPaKsTmWxPcY+lacHgbs+wW5BUzuGQgl +dcvyMJs26h7V9MHMlp3w5kpbLl8avSp3p/CRjKOUQ0EnU6ygcGygM0TzEAeyW8rvvDrityIxEl hyz+MsGFjNoIyEf6UYGpgPgBQpo2RT+iSJS+zw1EsOQInOxSCGXNROCY/zlTVQ2m96ymdEBVpS+ mhWYmKPQH5KekMNlB+4prMR0EJ9DZybojXwsF6bU4RM3NWFJdyEm+pZAEtxzeUBwwzhvV89gWOw JcXgdyjrsgm7s5wE+p9DrdmGoH9w8ugko+Q53SuNynHYX7c0UHf+4mRjLjNyYodaqoAcvmNG2Z4 Z/V1sBXImgrfBH9JiK6lnGT1FzDa0c8jNz6dx7fnjjD2Fxgv1VZ6ERXHqsOP5tqOxiBA4N/cV2T QQcF5/H0+NZidBiTvNw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-29_04,2026-07-28_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 clxscore=1015 phishscore=0 malwarescore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607290097 On Mon, Jul 27, 2026 at 04:05:12PM +0200, Heiko Carstens wrote: > This is the s390 variant of commit 710618c760c0 ("arm64/cfi,bpf: Support > kCFI + BPF on arm64"). > > Signed-off-by: Heiko Carstens > --- > arch/s390/include/asm/cfi.h | 7 +++++++ > arch/s390/net/bpf_jit_comp.c | 28 ++++++++++++++++++++++++---- > 2 files changed, 31 insertions(+), 4 deletions(-) > create mode 100644 arch/s390/include/asm/cfi.h Question to BPF maintainers: do you have any objections if this goes upstream via the s390 git tree?