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From: Matthieu Baerts <matttbe@kernel.org>
To: John Hubbard <jhubbard@nvidia.com>, Shuah Khan <shuah@kernel.org>
Cc: "David S . Miller" <davem@davemloft.net>,
	"Eric Dumazet" <edumazet@google.com>,
	"Jakub Kicinski" <kuba@kernel.org>,
	"Paolo Abeni" <pabeni@redhat.com>,
	"Steffen Klassert" <steffen.klassert@secunet.com>,
	"Herbert Xu" <herbert@gondor.apana.org.au>,
	"Andreas Färber" <afaerber@suse.de>,
	"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
	"Mat Martineau" <martineau@kernel.org>,
	"Geliang Tang" <geliang@kernel.org>,
	"Pravin B Shelar" <pshelar@ovn.org>,
	"Willem de Bruijn" <willemdebruijn.kernel@gmail.com>,
	"Alexander Mikhalitsyn" <alexander@mihalicyn.com>,
	zhujun2 <zhujun2@cmss.chinamobile.com>,
	"Petr Machata" <petrm@nvidia.com>,
	"Ido Schimmel" <idosch@nvidia.com>,
	"Hangbin Liu" <liuhangbin@gmail.com>,
	"Nikolay Aleksandrov" <razor@blackwall.org>,
	"Benjamin Poirier" <bpoirier@nvidia.com>,
	"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
	"Dmitry Safonov" <0x7f454c46@gmail.com>,
	netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-actions@lists.infradead.org, mptcp@lists.linux.dev,
	dev@openvswitch.org, "Valentin Obst" <kernel@valentinobst.de>,
	linux-kselftest@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>,
	llvm@lists.linux.dev
Subject: Re: [PATCH 2/2] selftests/net: fix uninitialized variables
Date: Mon, 6 May 2024 09:49:14 +0200	[thread overview]
Message-ID: <ff35f349-5036-4305-a352-fdef09326851@kernel.org> (raw)
In-Reply-To: <20240505222639.70317-2-jhubbard@nvidia.com>

Hi John,

On 06/05/2024 00:26, John Hubbard wrote:
> When building with clang, via:
> 
>     make LLVM=1 -C tools/testing/selftest
> 
> ...clang warns about three variables that are not initialized in all
> cases:
> 
> 1) The opt_ipproto_off variable is used uninitialized if "testname" is
> not "ip". This seems like an actual bug.
> 
> 2) The addr_len is used uninitialized, but only in the assert case,
>    which bails out, so this is harmless.
> 
> 3) The family variable in add_listener() is only used uninitialized in
>    the error case (neither IPv4 nor IPv6 is specified), so it's also
>    harmless.
> 
> Fix by initializing each variable.
> 
> Signed-off-by: John Hubbard <jhubbard@nvidia.com>
> ---
>  tools/testing/selftests/net/gro.c                 | 3 ++-
>  tools/testing/selftests/net/ip_local_port_range.c | 2 +-
>  tools/testing/selftests/net/mptcp/pm_nl_ctl.c     | 2 +-

Thank you for fixing these warnings!

The modification in the MPTCP selftest directory looks good to me:

Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>

Cheers,
Matt
-- 
Sponsored by the NGI0 Core fund.


  reply	other threads:[~2024-05-06  7:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-05 22:26 [PATCH 1/2] selftests/net: suppress clang's "variable-sized type not at the end" warning John Hubbard
2024-05-05 22:26 ` [PATCH 2/2] selftests/net: fix uninitialized variables John Hubbard
2024-05-06  7:49   ` Matthieu Baerts [this message]
2024-05-06 18:00   ` Willem de Bruijn
2024-05-06 18:50     ` John Hubbard

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