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Tue, 03 Mar 2026 18:10:38 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 623IAYDx57344496 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 3 Mar 2026 18:10:34 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2511D20043; Tue, 3 Mar 2026 18:10:34 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 039A020040; Tue, 3 Mar 2026 18:10:32 +0000 (GMT) Received: from li-bd3f974c-2712-11b2-a85c-df1cec4d728e.ibm.com.com (unknown [9.43.53.81]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 3 Mar 2026 18:10:31 +0000 (GMT) From: Hari Bathini To: linuxppc-dev Cc: bpf@vger.kernel.org, Madhavan Srinivasan , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Saket Kumar Bhaskar , Abhishek Dubey , Venkat Rao Bagalkote Subject: [PATCH v4 0/6] powerpc64/bpf: various fixes Date: Tue, 3 Mar 2026 23:40:24 +0530 Message-ID: <20260303181031.390073-1-hbathini@linux.ibm.com> X-Mailer: git-send-email 2.53.0 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 6jWWUrk0cPAS5nO2pOv7vhVN-sPBK1X0 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAzMDE0NiBTYWx0ZWRfXxEQxzo2RqPZ3 V83d2QveBmHuPJPoCUxBUPbKODkYVABaq42Rk1TuVPFrpRsFU2hKhNyC0uvCH+A5WtDbCvMhIRS UA5NybgUVHvDRs/4c4WDwYdN67nXi1uVNdENWcX/j1IQ347KqcKpis9Th57yvNVNyDKpFNrmwNL 41tCg7uXKg89vkwIdZRmOmr/vulv60aK26j/gpl+jmZa7hp888EAjXL/7GnpZd1lmqxlwtQA8we 0jfa21aIbyfgjSXTZVk7o8GHKrh3n0lkFvfPciEoeLqHUA8Tju7WJRU93bNWmXBDsnKrhen0O1Q NR6xq3XVYrYgv1t50gtsv5WvrMwqzwRS9xqvGzhtPeumZVAugY1qXuhtN5ekI2vMaxfZyGMdpLv 9gy4J2h8h/Y3HKUwUO96Uo8QUzuA/JziKXTn7+SPZpv+VDdGo3QxZNsE2xnyV7/ekUMjUaE9fRH chULjg8miDUN8lKqNJw== X-Authority-Analysis: v=2.4 cv=H7DWAuYi c=1 sm=1 tr=0 ts=69a7241f cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VwQbUJbxAAAA:8 a=F-3jXUw4vF4i_SR45usA:9 X-Proofpoint-ORIG-GUID: 6jWWUrk0cPAS5nO2pOv7vhVN-sPBK1X0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-03_02,2026-03-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 phishscore=0 clxscore=1015 priorityscore=1501 adultscore=0 bulkscore=0 spamscore=0 malwarescore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603030146 List of fixes for powerpc64 BPF JIT: - Patches 1, 2 & 6 fix issues with existing powerpc64 JIT and are tagged for -stable. - Patches 3 & 4 resolve issues with bpf2bpf tailcall support added recently. - Patch 5 resolves an issue reported by bot+bpf-ci@kernel.org while adding exceptions support on powerpc64 BPF JIT. Changes since v3: - Fixed a minor issue in zero_extend() helper in patch 6 as pointed out by bot+bpf-ci@kernel.org. Changes since v2: - Added Tested-by tag from Venkat on patches 1, 2 & 4. - Patches 6 added to fix kfunc call ABI issue on powerpc. - Fixed a few comments on Abhishek's suggestion. Changes since v1: - Addressed couple of review comments from bot+bpf-ci@kernel.org in patch 3 & 5. Hari Bathini (6): powerpc64/bpf: do not increment tailcall count when prog is NULL powerpc64/bpf: fix the address returned by bpf_get_func_ip powerpc64/bpf: use consistent tailcall offset in trampoline powerpc64/bpf: remove BPF redzone protection in trampoline stack powerpc64/bpf: fix handling of BPF stack in exception callback powerpc64/bpf: fix kfunc call support arch/powerpc/net/bpf_jit.h | 5 - arch/powerpc/net/bpf_jit_comp.c | 127 +++++++++------------ arch/powerpc/net/bpf_jit_comp64.c | 181 +++++++++++++++++++++++------- 3 files changed, 199 insertions(+), 114 deletions(-) -- 2.53.0