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[156.34.48.30]) by smtp.gmail.com with ESMTPSA id u8sm7938ilm.36.2020.10.19.16.05.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Oct 2020 16:05:47 -0700 (PDT) Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1kUeDq-002hRf-LL; Mon, 19 Oct 2020 20:05:46 -0300 Date: Mon, 19 Oct 2020 20:05:46 -0300 From: Jason Gunthorpe To: Nick Desaulniers Cc: Tom Rix , LKML , linux-edac@vger.kernel.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, xen-devel@lists.xenproject.org, linux-block@vger.kernel.org, openipmi-developer@lists.sourceforge.net, "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" , Linux ARM , linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, amd-gfx list , dri-devel , nouveau@lists.freedesktop.org, virtualization@lists.linux-foundation.org, spice-devel@lists.freedesktop.org, linux-iio@vger.kernel.org, linux-amlogic@lists.infradead.org, industrypack-devel@lists.sourceforge.net, linux-media@vger.kernel.org, MPT-FusionLinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, linux-mtd@lists.infradead.org, linux-can@vger.kernel.org, Network Development , intel-wired-lan@lists.osuosl.org, ath10k@lists.infradead.org, linux-wireless , linux-stm32@st-md-mailman.stormreply.com, linux-nfc@lists.01.org, linux-nvdimm , linux-pci@vger.kernel.org, linux-samsung-soc@vger.kernel.org, platform-driver-x86@vger.kernel.org, patches@opensource.cirrus.com, storagedev@microchip.com, devel@driverdev.osuosl.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net, linux-watchdog@vger.kernel.org, ocfs2-devel@oss.oracle.com, bpf , linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, keyrings@vger.kernel.org, alsa-devel@alsa-project.org, clang-built-linux , Greg KH , George Burgess Subject: Re: [RFC] treewide: cleanup unreachable breaks Message-ID: <20201019230546.GH36674@ziepe.ca> References: <20201017160928.12698-1-trix@redhat.com> <20201018054332.GB593954@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Mon, Oct 19, 2020 at 12:42:15PM -0700, Nick Desaulniers wrote: > On Sat, Oct 17, 2020 at 10:43 PM Greg KH wrote: > > > > On Sat, Oct 17, 2020 at 09:09:28AM -0700, trix@redhat.com wrote: > > > From: Tom Rix > > > > > > This is a upcoming change to clean up a new warning treewide. > > > I am wondering if the change could be one mega patch (see below) or > > > normal patch per file about 100 patches or somewhere half way by collecting > > > early acks. > > > > Please break it up into one-patch-per-subsystem, like normal, and get it > > merged that way. > > > > Sending us a patch, without even a diffstat to review, isn't going to > > get you very far... > > Tom, > If you're able to automate this cleanup, I suggest checking in a > script that can be run on a directory. Then for each subsystem you > can say in your commit "I ran scripts/fix_whatever.py on this subdir." > Then others can help you drive the tree wide cleanup. Then we can > enable -Wunreachable-code-break either by default, or W=2 right now > might be a good idea. I remember using clang-modernize in the past to fix issues very similar to this, if clang machinery can generate the warning, can't something like clang-tidy directly generate the patch? You can send me a patch for drivers/infiniband/* as well Thanks, Jason