From: Matan Shachnai <m.shachnai@gmail.com>
To: ast@kernel.org
Cc: harishankar.vishwanathan@gmail.com,
srinivas.narayana@rutgers.edu, santosh.nagarakatte@rutgers.edu,
m.shachnai@rutgers.edu, Matan Shachnai <m.shachnai@gmail.com>,
Daniel Borkmann <daniel@iogearbox.net>,
John Fastabend <john.fastabend@gmail.com>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Eduard Zingerman <eddyz87@gmail.com>, Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
KP Singh <kpsingh@kernel.org>,
Stanislav Fomichev <sdf@fomichev.me>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>, Mykola Lysenko <mykolal@fb.com>,
Shuah Khan <shuah@kernel.org>,
Cupertino Miranda <cupertino.miranda@oracle.com>,
Menglong Dong <menglong8.dong@gmail.com>,
bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org
Subject: [PATCH bpf-next v4 0/2] bpf, verifier: Improve precision of BPF_MUL
Date: Tue, 17 Dec 2024 22:23:33 -0500 [thread overview]
Message-ID: <20241218032337.12214-1-m.shachnai@gmail.com> (raw)
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(-)
--
2.25.1
next reply other threads:[~2024-12-18 3:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-18 3:23 Matan Shachnai [this message]
2024-12-18 3:23 ` [PATCH bpf-next v4 1/2] bpf, verifier: Improve precision of BPF_MUL Matan Shachnai
2024-12-18 3:23 ` [PATCH bpf-next v4 2/2] selftests/bpf: Add testcases for BPF_MUL Matan Shachnai
2024-12-30 23:00 ` [PATCH bpf-next v4 0/2] bpf, verifier: Improve precision of BPF_MUL patchwork-bot+netdevbpf
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