linux-kernel - [v3 PATCH bpf-next 0/2] bpf: Add percpu map value size check

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Message-Id: <20240910144111.1464912-1-chen.dylane@gmail.com>
Date: Tue, 10 Sep 2024 22:41:09 +0800
From: Tao Chen <chen.dylane@...il.com>
To: Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Andrii Nakryiko <andrii@...nel.org>,
	Eduard Zingerman <eddyz87@...il.com>,
	Song Liu <song@...nel.org>,
	Hou Tao <houtao1@...wei.com>,
	Yonghong Song <yonghong.song@...ux.dev>,
	John Fastabend <john.fastabend@...il.com>,
	KP Singh <kpsingh@...nel.org>,
	Stanislav Fomichev <sdf@...ichev.me>
Cc: Tao Chen <chen.dylane@...il.com>,
	bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [v3 PATCH bpf-next 0/2] bpf: Add percpu map value size check

Check percpu map value size first and add the test case in selftest.

Change list:
- v2 -> v3:
    - use bpf_map_create API and mv test case in map_percpu_stats.c
- v1 -> v2:
    - round up map value size with 8 bytes in patch 1
    - add selftest case in patch 2

Tao Chen (2):
  bpf: Check percpu map value size first
  bpf/selftests: Check errno when percpu map value size exceeds

 kernel/bpf/arraymap.c                          |  3 +++
 kernel/bpf/hashtab.c                           |  3 +++
 .../selftests/bpf/map_tests/map_percpu_stats.c | 18 ++++++++++++++++++
 3 files changed, 24 insertions(+)

-- 
2.43.0