netdev - Re: [PATCH bpf-next v2 07/13] selftests/bpf: migrate flow

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Message-ID: <ZzdrnYe0Jf6VwEqB@mini-arch>
Date: Fri, 15 Nov 2024 07:41:17 -0800
From: Stanislav Fomichev <stfomichev@...il.com>
To: Alexis Lothoré (eBPF Foundation) <alexis.lothore@...tlin.com>
Cc: Andrii Nakryiko <andrii@...nel.org>,
	Eduard Zingerman <eddyz87@...il.com>,
	Mykola Lysenko <mykolal@...com>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>,
	Yonghong Song <yonghong.song@...ux.dev>,
	John Fastabend <john.fastabend@...il.com>,
	KP Singh <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...ichev.me>,
	Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
	Shuah Khan <shuah@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Jesper Dangaard Brouer <hawk@...nel.org>, ebpf@...uxfoundation.org,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Bastien Curutchet <bastien.curutchet@...tlin.com>,
	bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH bpf-next v2 07/13] selftests/bpf: migrate flow_dissector
 namespace exclusivity test

On 11/14, Alexis Lothoré (eBPF Foundation) wrote:
> Commit a11c397c43d5 ("bpf/flow_dissector: add mode to enforce global BPF
> flow dissector") is currently tested in test_flow_dissector.sh, which is
> not part of test_progs. Add the corresponding test to flow_dissector.c,
> which is part of test_progs. The new test reproduces the behavior
> implemented in its shell script counterpart:
> - attach a  flow dissector program to the root net namespace, ensure
>   that we can not attach another flow dissector in any non-root net
>   namespace
> - attach a flow dissector program to a non-root net namespace, ensure
>   that we can not attach another flow dissector in root namespace
> 
> Since the new test is performing operations in the root net namespace,
> make sure to set it as a "serial" test to make sure not to conflict with
> any other test.
> 
> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@...tlin.com>

Acked-by: Stanislav Fomichev <sdf@...ichev.me>