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Wed, 10 Feb 2021 18:39:19 +0000 Date: Wed, 10 Feb 2021 14:39:17 -0400 From: Jason Gunthorpe To: Andrew Lunn , Nathan Chancellor CC: Masahiro Yamada , netdev , David Miller , Jakub Kicinski , "Michal Marek" , Linux Kbuild mailing list , clang-built-linux Subject: Re: [PATCH RFC/RFT 0/2] W=1 by default for Ethernet PHY subsystem Message-ID: <20210210183917.GA1471624@nvidia.com> References: <20200919190258.3673246-1-andrew@lunn.ch> <20200920145351.GB3689762@lunn.ch> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20200920145351.GB3689762@lunn.ch> X-ClientProxiedBy: BL0PR01CA0028.prod.exchangelabs.com (2603:10b6:208:71::41) To DM6PR12MB3834.namprd12.prod.outlook.com (2603:10b6:5:14a::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from mlx.ziepe.ca (142.162.115.133) by BL0PR01CA0028.prod.exchangelabs.com (2603:10b6:208:71::41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3846.25 via Frontend Transport; Wed, 10 Feb 2021 18:39:19 +0000 Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1l9uOT-006AsX-UT; Wed, 10 Feb 2021 14:39:17 -0400 X-Header: ProcessedBy-CMR-outbound DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1612982366; bh=9+1fF3YGvaAwGiuyydZ9vaI+XQmRulIsAF8ttOHCEDs=; h=ARC-Seal:ARC-Message-Signature:ARC-Authentication-Results:Date: From:To:CC:Subject:Message-ID:References:Content-Type: Content-Disposition:In-Reply-To:X-ClientProxiedBy:MIME-Version: X-MS-Exchange-MessageSentRepresentingType:X-Header; b=OMUBIWj/MhQ50SfYJGpI+ZJuDiy/41MmBsvGNASJ7z2pJHb4Tq/bOpDGjeAaw5tej CYuHP5xl869i8qpv0sd5uG7bcOm5zmBSOsuAXzeGiH8y3kGQ2sFzG7xS1D4f1csioG RxYQXKjWegWPUNyH33rImLFa+HHT/p4hEo+GOgjdahIxRlpayIUKx0OeI5owrpHUeC dGn2DzGK2mCZMR65wjMZwe+7X4XNaVAsNaSFp8bVwf8NdpIQUpzO+DRV+Qd/IQ759l PjUOLs86XwSShSFqoSzhA83F0C6qv+dT2pBkufHb9JehHTOLu6kzhbycgGzrrK4IiM UtOyYw3iGEoVg== Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Sun, Sep 20, 2020 at 04:53:51PM +0200, Andrew Lunn wrote: > How often are new W=1 flags added? My patch exported > KBUILD_CFLAGS_WARN1. How about instead we export > KBUILD_CFLAGS_WARN1_20200920. A subsystem can then sign up to being > W=1 clean as for the 20200920 definition of W=1. I think this is a reasonable idea. I'm hitting exactly the issue this series is trying to solve, Lee invested a lot of effort to make drivers/infiniband/ W=1 clean, but as maintainer I can't sustain this since there is no easy way to have a warning free compile and get all extra warnings. Also all my submitters are not running with W=1 I need kbuild to get everyone on the same page to be able to sustain the warning clean up. We've already had a regression and it has only been a few weeks :( Andrew, would you consider respinning this series in the above form? Thanks, Jason