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Tue, 3 Mar 2026 13:02:09 +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 v3 0/6] powerpc64/bpf: various fixes Date: Tue, 3 Mar 2026 18:32:02 +0530 Message-ID: <20260303130208.325249-1-hbathini@linux.ibm.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: z_0NSw_3dTrF0f6JReJl-xxYUZEbIn7- X-Authority-Analysis: v=2.4 cv=b66/I9Gx c=1 sm=1 tr=0 ts=69a6dbd8 cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VwQbUJbxAAAA:8 a=6UyuRm9t2VcF-Ioa368A:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAzMDA5OSBTYWx0ZWRfX3uDFtlcNQcJP 4q4ODmWotvN+zEa5wP60KBYNCUAvlxhqQbaqObN3kST6qdSCBMDjmrrRr2p3oSswgSe22Sfbu73 WveaFShKunsSbCVbw7Bsp2jPDqjr2vCVhmgonqswh4qHYKpy9FBl2/3u0QCV9zYc9aUAq4YPAgA K8N9KYhfmK99WBZuS4tOV1KMCXW8QOsZXq0ilFj26zTGNxeVuqrJgwJlxErrBTlFwVet7rTuU3z vjA+xhBwpXtRXK8Ve5L37icuJnKN++qkt//uujWBiG7sgtTPOra6FiMG4WrteCGHnxgE8MhtoP5 VIO377iFoV+Lx5P4ZpdiUlZCtFbswrdX1r12L3aA4o5HrOZ+UcGocA8YfMG4iYs12DcR++AhTWa uiaub8rhAKQ031JhPD5niSqBUg1AgX4yHmwDbi4/I+CEvSBXl9LjcLLrLLqGlMto9pktb0twQFn 8DtnaGRMNbV99RgpGfw== X-Proofpoint-GUID: z_0NSw_3dTrF0f6JReJl-xxYUZEbIn7- 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=2026-03-02_05,2026-03-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 phishscore=0 clxscore=1015 adultscore=0 bulkscore=0 impostorscore=0 malwarescore=0 spamscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603030099 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 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