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[2a01:cb08:8949:7e00:55c0:fd71:8e6a:f73d]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48fd769286csm1684765e9.33.2026.05.13.12.33.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 May 2026 12:33:43 -0700 (PDT) Date: Wed, 13 May 2026 21:33:41 +0200 From: Paul Chaignon To: bpf@vger.kernel.org Cc: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi Subject: [PATCH bpf-next v3 0/3] bpf: Maximum combined stack depth Message-ID: 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 This patchset dumps the maximum combined stack depth in verifier logs and parses it in veristat. Changes in v3: - Increment spec_cnt field in veristat for new MAX_STACK id (AI bot). Changes in v2: - Remove unnecessary max_stack_depth assignment (Eduard). - Fix and test incorrect handling of private stacks. - Add veristat metric (Eduard). Paul Chaignon (3): bpf: Report maximum combined stack depth selftests/bpf: Test reported max stack depth veristat: Report max stack depth include/linux/bpf_verifier.h | 2 ++ kernel/bpf/verifier.c | 6 +++++- .../selftests/bpf/progs/verifier_bpf_fastcall.c | 3 +-- .../selftests/bpf/progs/verifier_private_stack.c | 15 +++++++++++++++ tools/testing/selftests/bpf/veristat.c | 13 +++++++++---- 5 files changed, 32 insertions(+), 7 deletions(-) -- 2.43.0