From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ACA536CDBF; Mon, 6 May 2024 07:50:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714981837; cv=none; b=FdlccD7eMWL+yhCeykByeZq4vxM/ZOAredtozWzc1aJ0HXt+S06vOe1c0WWyvXmgQJbLFjereWuoe2qXUwFgO8GRQoiCbz6EK+BN1o015agYQpi6Kl1NP8vkVO223e7X28/yP2e7xpXnTgyr7UsEK3BC9asZX+PIDoQLULZqEuQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714981837; c=relaxed/simple; bh=HXInDPAgjaWxpnc2isb/l7/UETm/7etL+J7jmNAa9uQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=r9PkxfUYnuZR70AYjsgeNhXhGEsa9jzvVZmM4vLIqzCyaVCugSso8rrXStDkZeb5CykwpFrmrBHwd4FkIJnIHTKnfvVlMPaicBsLm5XyalmnzUS0JUnZ1uJqBJ2gdrczCf0Y5n72Q+fNN6goD6SuD+qcT0snMUd5SWUloK3xjTk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GAhmos70; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GAhmos70" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A5ECAC116B1; Mon, 6 May 2024 07:50:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714981837; bh=HXInDPAgjaWxpnc2isb/l7/UETm/7etL+J7jmNAa9uQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=GAhmos70T8aOc5nA0O8mNi5Jfg3HC7YPIWsZAOR/be504ykJLaQlCrnxEqds9omkq gCwmqH1ibBmPBiU7fD3j2QiYyp6VaqLhtq8W+IgS9ukIHdPiCbfdzX2Ctu73IWpdfh 6FTO4bGMz+VOOnBI8rUjhGBfxvTjffOLO73dRCCnF0dGpOok46j6bU7AgrMcHuE2Vw OAHT+SCyuDSMn1qqr7w0YnFgx9qtwtBsleMkNB8bsRbBRmumMX6KXpcMgAr8r7T3K9 GlqpXCvCM3iSwMnC/pQuynlI7l/+PWiA2ZegAEU8nZBrXtMdyMbowbgY9J+mTPF/qq n9aXg28FlvGOg== Message-ID: Date: Mon, 6 May 2024 09:49:14 +0200 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta Subject: Re: [PATCH 2/2] selftests/net: fix uninitialized variables Content-Language: en-GB To: John Hubbard , Shuah Khan Cc: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Steffen Klassert , Herbert Xu , =?UTF-8?Q?Andreas_F=C3=A4rber?= , Manivannan Sadhasivam , Mat Martineau , Geliang Tang , Pravin B Shelar , Willem de Bruijn , Alexander Mikhalitsyn , zhujun2 , Petr Machata , Ido Schimmel , Hangbin Liu , Nikolay Aleksandrov , Benjamin Poirier , Sebastian Andrzej Siewior , 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 , linux-kselftest@vger.kernel.org, LKML , llvm@lists.linux.dev References: <20240505222639.70317-1-jhubbard@nvidia.com> <20240505222639.70317-2-jhubbard@nvidia.com> From: Matthieu Baerts Autocrypt: addr=matttbe@kernel.org; keydata= xsFNBFXj+ekBEADxVr99p2guPcqHFeI/JcFxls6KibzyZD5TQTyfuYlzEp7C7A9swoK5iCvf YBNdx5Xl74NLSgx6y/1NiMQGuKeu+2BmtnkiGxBNanfXcnl4L4Lzz+iXBvvbtCbynnnqDDqU c7SPFMpMesgpcu1xFt0F6bcxE+0ojRtSCZ5HDElKlHJNYtD1uwY4UYVGWUGCF/+cY1YLmtfb WdNb/SFo+Mp0HItfBC12qtDIXYvbfNUGVnA5jXeWMEyYhSNktLnpDL2gBUCsdbkov5VjiOX7 CRTkX0UgNWRjyFZwThaZADEvAOo12M5uSBk7h07yJ97gqvBtcx45IsJwfUJE4hy8qZqsA62A nTRflBvp647IXAiCcwWsEgE5AXKwA3aL6dcpVR17JXJ6nwHHnslVi8WesiqzUI9sbO/hXeXw TDSB+YhErbNOxvHqCzZEnGAAFf6ges26fRVyuU119AzO40sjdLV0l6LE7GshddyazWZf0iac nEhX9NKxGnuhMu5SXmo2poIQttJuYAvTVUNwQVEx/0yY5xmiuyqvXa+XT7NKJkOZSiAPlNt6 VffjgOP62S7M9wDShUghN3F7CPOrrRsOHWO/l6I/qJdUMW+MHSFYPfYiFXoLUZyPvNVCYSgs 3oQaFhHapq1f345XBtfG3fOYp1K2wTXd4ThFraTLl8PHxCn4ywARAQABzSRNYXR0aGlldSBC YWVydHMgPG1hdHR0YmVAa2VybmVsLm9yZz7CwZEEEwEIADsCGwMFCwkIBwIGFQoJCAsCBBYC AwECHgECF4AWIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZUDpDAIZAQAKCRD2t4JPQmmgcz33 EACjROM3nj9FGclR5AlyPUbAq/txEX7E0EFQCDtdLPrjBcLAoaYJIQUV8IDCcPjZMJy2ADp7 /zSwYba2rE2C9vRgjXZJNt21mySvKnnkPbNQGkNRl3TZAinO1Ddq3fp2c/GmYaW1NWFSfOmw MvB5CJaN0UK5l0/drnaA6Hxsu62V5UnpvxWgexqDuo0wfpEeP1PEqMNzyiVPvJ8bJxgM8qoC cpXLp1Rq/jq7pbUycY8GeYw2j+FVZJHlhL0w0Zm9CFHThHxRAm1tsIPc+oTorx7haXP+nN0J iqBXVAxLK2KxrHtMygim50xk2QpUotWYfZpRRv8dMygEPIB3f1Vi5JMwP4M47NZNdpqVkHrm jvcNuLfDgf/vqUvuXs2eA2/BkIHcOuAAbsvreX1WX1rTHmx5ud3OhsWQQRVL2rt+0p1DpROI 3Ob8F78W5rKr4HYvjX2Inpy3WahAm7FzUY184OyfPO/2zadKCqg8n01mWA9PXxs84bFEV2mP VzC5j6K8U3RNA6cb9bpE5bzXut6T2gxj6j+7TsgMQFhbyH/tZgpDjWvAiPZHb3sV29t8XaOF BwzqiI2AEkiWMySiHwCCMsIH9WUH7r7vpwROko89Tk+InpEbiphPjd7qAkyJ+tNIEWd1+MlX ZPtOaFLVHhLQ3PLFLkrU3+Yi3tXqpvLE3gO3LM7BTQRV4/npARAA5+u/Sx1n9anIqcgHpA7l 5SUCP1e/qF7n5DK8LiM10gYglgY0XHOBi0S7vHppH8hrtpizx+7t5DBdPJgVtR6SilyK0/mp 9nWHDhc9rwU3KmHYgFFsnX58eEmZxz2qsIY8juFor5r7kpcM5dRR9aB+HjlOOJJgyDxcJTwM 1ey4L/79P72wuXRhMibN14SX6TZzf+/XIOrM6TsULVJEIv1+NdczQbs6pBTpEK/G2apME7vf mjTsZU26Ezn+LDMX16lHTmIJi7Hlh7eifCGGM+g/AlDV6aWKFS+sBbwy+YoS0Zc3Yz8zrdbi Kzn3kbKd+99//mysSVsHaekQYyVvO0KD2KPKBs1S/ImrBb6XecqxGy/y/3HWHdngGEY2v2IP Qox7mAPznyKyXEfG+0rrVseZSEssKmY01IsgwwbmN9ZcqUKYNhjv67WMX7tNwiVbSrGLZoqf Xlgw4aAdnIMQyTW8nE6hH/Iwqay4S2str4HZtWwyWLitk7N+e+vxuK5qto4AxtB7VdimvKUs x6kQO5F3YWcC3vCXCgPwyV8133+fIR2L81R1L1q3swaEuh95vWj6iskxeNWSTyFAVKYYVskG V+OTtB71P1XCnb6AJCW9cKpC25+zxQqD2Zy0dK3u2RuKErajKBa/YWzuSaKAOkneFxG3LJIv Hl7iqPF+JDCjB5sAEQEAAcLBXwQYAQIACQUCVeP56QIbDAAKCRD2t4JPQmmgc5VnD/9YgbCr HR1FbMbm7td54UrYvZV/i7m3dIQNXK2e+Cbv5PXf19ce3XluaE+wA8D+vnIW5mbAAiojt3Mb 6p0WJS3QzbObzHNgAp3zy/L4lXwc6WW5vnpWAzqXFHP8D9PTpqvBALbXqL06smP47JqbyQxj Xf7D2rrPeIqbYmVY9da1KzMOVf3gReazYa89zZSdVkMojfWsbq05zwYU+SCWS3NiyF6QghbW voxbFwX1i/0xRwJiX9NNbRj1huVKQuS4W7rbWA87TrVQPXUAdkyd7FRYICNW+0gddysIwPoa KrLfx3Ba6Rpx0JznbrVOtXlihjl4KV8mtOPjYDY9u+8x412xXnlGl6AC4HLu2F3ECkamY4G6 UxejX+E6vW6Xe4n7H+rEX5UFgPRdYkS1TA/X3nMen9bouxNsvIJv7C6adZmMHqu/2azX7S7I vrxxySzOw9GxjoVTuzWMKWpDGP8n71IFeOot8JuPZtJ8omz+DZel+WCNZMVdVNLPOd5frqOv mpz0VhFAlNTjU1Vy0CnuxX3AM51J8dpdNyG0S8rADh6C8AKCDOfUstpq28/6oTaQv7QZdge0 JY6dglzGKnCi/zsmp2+1w559frz4+IC7j/igvJGX4KDDKUs0mlld8J2u2sBXv7CGxdzQoHaz lzVbFe7fduHbABmYz9cefQpO7wDE/Q== Organization: NGI0 Core In-Reply-To: <20240505222639.70317-2-jhubbard@nvidia.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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 > --- > 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) Cheers, Matt -- Sponsored by the NGI0 Core fund.