linux-kernel - Re: [PATCH 6.1 00/15] genetlink: Test Netlink subsystem of Linux v6.1

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Message-ID: <CAEP49o+-=HeW4NgB5a0H6gM9tPJg=oNeUA1iCbXq_1qZPPaGnA@mail.gmail.com>
Date: Wed, 15 Oct 2025 17:49:22 +0300
From: Яна Башлыкова <yana2bsh@...il.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>, Nathan Chancellor <nathan@...nel.org>, 
	Nick Desaulniers <ndesaulniers@...gle.com>, Tom Rix <trix@...hat.com>, linux-kernel@...r.kernel.org, 
	netdev@...r.kernel.org, linux-kselftest@...r.kernel.org, 
	linux-riscv@...ts.infradead.org, bpf@...r.kernel.org, llvm@...ts.linux.dev, 
	lvc-project@...uxtesting.org
Subject: Re: [PATCH 6.1 00/15] genetlink: Test Netlink subsystem of Linux v6.1

The motivation for this work is to improve the test coverage and
reliability of the Netlink subsystem, specifically for the core
af_netlink.c and genetlink.c components. While the subsystem is
critical for kernel-userspace communication, its coverage by the
existing selftests is quite limited.

To quantify the improvement, these new selftests achieve the following
line coverage (as measured by gcov):
- net/netlink/af_netlink.c: 84.0%
- net/netlink/genetlink.c: 88.8%

Integrating these tests into the upstream suite will provide long-term
stability and make it safer to refactor or add new features to the
Netlink core in the future.

пт, 12 сент. 2025 г. в 23:17, Jakub Kicinski <kuba@...nel.org>:


пт, 12 сент. 2025 г. в 23:17, Jakub Kicinski <kuba@...nel.org>:
>
> On Fri, 12 Sep 2025 22:53:23 +0300 Yana Bashlykova wrote:
> > This series adds comprehensive testing infrastructure for Netlink
> > and Generic Netlink
> >
> > The implementation includes both kernel module and userspace tests to
> > verify correct Generic Netlink and Netlink behaviors under
> > various conditions.
>
> What is the motivation for this work?