[PATCH bpf-next v4 0/2] bpf, verifier: Improve precision of BPF_MUL

From: Matan Shachnai
Date: Tue Dec 17 2024 - 22:24:35 EST


Hi All,

This patch-set aims to improve precision of BPF_MUL and add testcases
to illustrate precision gains using signed and unsigned bounds.

Thanks for taking the time to review and for all the feedback!

Best,
Matan

Changes from v1:
- Fixed typo made in patch.

Changes from v2:
- Added signed multiplication to BPF_MUL.
- Added test cases to exercise BPF_MUL.
- Reordered patches in the series.

Changes from v3:
- Coding style fixes.

Matan Shachnai (2):
bpf, verifier: Improve precision of BPF_MUL
selftests/bpf: Add testcases for BPF_MUL

kernel/bpf/verifier.c | 80 +++++------
.../selftests/bpf/progs/verifier_bounds.c | 134 ++++++++++++++++++
2 files changed, 170 insertions(+), 44 deletions(-)

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2.25.1