linux-kernel - Re: [RFC] treewide: cleanup unreachable breaks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 20 Oct 2020 07:09:23 -0700
From:   Tom Rix <trix@...hat.com>
To:     Jason Gunthorpe <jgg@...pe.ca>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-edac@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-pm@...r.kernel.org,
        xen-devel@...ts.xenproject.org, linux-block@...r.kernel.org,
        openipmi-developer@...ts.sourceforge.net,
        "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
        <linux-crypto@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-power@...rohmeurope.com, linux-gpio@...r.kernel.org,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        nouveau@...ts.freedesktop.org,
        virtualization@...ts.linux-foundation.org,
        spice-devel@...ts.freedesktop.org, linux-iio@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        industrypack-devel@...ts.sourceforge.net,
        linux-media@...r.kernel.org, MPT-FusionLinux.pdl@...adcom.com,
        linux-scsi@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-can@...r.kernel.org,
        Network Development <netdev@...r.kernel.org>,
        intel-wired-lan@...ts.osuosl.org, ath10k@...ts.infradead.org,
        linux-wireless <linux-wireless@...r.kernel.org>,
        linux-stm32@...md-mailman.stormreply.com, linux-nfc@...ts.01.org,
        linux-nvdimm <linux-nvdimm@...ts.01.org>,
        linux-pci@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, patches@...nsource.cirrus.com,
        storagedev@...rochip.com, devel@...verdev.osuosl.org,
        linux-serial@...r.kernel.org, linux-usb@...r.kernel.org,
        usb-storage@...ts.one-eyed-alien.net,
        linux-watchdog@...r.kernel.org, ocfs2-devel@....oracle.com,
        bpf <bpf@...r.kernel.org>, linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        alsa-devel@...a-project.org,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        George Burgess <gbiv@...gle.com>
Subject: Re: [RFC] treewide: cleanup unreachable breaks


On 10/19/20 4:05 PM, Jason Gunthorpe wrote:
> On Mon, Oct 19, 2020 at 12:42:15PM -0700, Nick Desaulniers wrote:
>> On Sat, Oct 17, 2020 at 10:43 PM Greg KH <gregkh@...uxfoundation.org> wrote:
>>> On Sat, Oct 17, 2020 at 09:09:28AM -0700, trix@...hat.com wrote:
>>>> From: Tom Rix <trix@...hat.com>
>>>>
>>>> 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?

Yes clang-tidy and similar are good tools.

Sometimes they change too much and your time shifts

from editing to analyzing and dropping changes.


I am looking at them for auto changing api.

When i have something greater than half baked i will post.

Tom

>
> You can send me a patch for drivers/infiniband/* as well
>
> Thanks,
> Jason
>