Merge branch 'bpf-maximum-combined-stack-depth'

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Paul Chaignon says:

====================
bpf: Maximum combined stack depth

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).
====================

Link: https://patch.msgid.link/cover.1778700777.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Alexei Starovoitov 2026-05-13 18:38:31 -07:00

parent 74a9bb761a f0015ffbf4

commit e651f3ce13

5 changed files with 32 additions and 7 deletions

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2

include/linux/bpf_verifier.h

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6

kernel/bpf/verifier.c

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3

tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c

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15

tools/testing/selftests/bpf/progs/verifier_private_stack.c

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13

tools/testing/selftests/bpf/veristat.c

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