linux-kernel - Re: [PATCH v2 00/10] drivers, provide a way to add sysfs groups easily

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:   Wed, 31 Jul 2019 06:10:45 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Richard Gong <richard.gong@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Borislav Petkov <bp@...en8.de>,
        Darren Hart <dvhart@...radead.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ingo Molnar <mingo@...hat.com>,
        Sudeep Holla <sudeep.holla@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tony Prisk <linux@...sktech.co.nz>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-fbdev@...r.kernel.org,
        linux-input@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        x86@...nel.org
Subject: Re: [PATCH v2 00/10] drivers, provide a way to add sysfs groups
 easily

On Wed, Jul 31, 2019 at 02:43:39PM +0200, Greg Kroah-Hartman wrote:
> This patch originally started out just as a way for platform drivers to
> easily add a sysfs group in a race-free way, but thanks to Dmitry's
> patch, this series now is for all drivers in the kernel (hey, a unified
> driver model works!!!)
> 
> I've only converted a few platform drivers here in this series to show
> how it works, but other busses can be converted after the first patch
> goes into the tree.
> 
> Here's the original 00 message, for people to get an idea of what is
> going on here:
> 
> If a platform driver wants to add a sysfs group, it has to do so in a
> racy way, adding it after the driver is bound.  To resolve this issue,
> have the platform driver core do this for the driver, making the
> individual drivers logic smaller and simpler, and solving the race at
> the same time.
> 
> All of these patches depend on the first patch.  I'll take the first one
> through my driver-core tree, and any subsystem maintainer can either ack
> their individul patch and I will be glad to also merge it, or they can
> wait until after 5.4-rc1 when the core patch hits Linus's tree and then
> take it, it's up to them.

Maybe make an immutable branch off 5.2 with just patch 1/10 so that
subsystems (and the driver core tree itself) could pull it in at their
leisure into their "*-next" branches and did not have to wait till 5.4
or risk merge clashes?

Thanks.

-- 
Dmitry