linux-kernel - Re: [RESEND 1/4] mfd: altera-sysmgr: Add SOCFPGA System Manager abstraction

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] [day] [month] [year] [list]

Date:   Tue, 18 Dec 2018 16:24:44 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     thor.thayer@...ux.intel.com
Cc:     Lee Jones <lee.jones@...aro.org>,
        Dinh Nguyen <dinguyen@...nel.org>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        David Miller <davem@...emloft.net>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Olof Johansson <olof@...om.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Networking <netdev@...r.kernel.org>
Subject: Re: [RESEND 1/4] mfd: altera-sysmgr: Add SOCFPGA System Manager abstraction

On Tue, Dec 18, 2018 at 12:21 AM Thor Thayer
<thor.thayer@...ux.intel.com> wrote:
>
> Hi Arnd,
>
> On 12/14/18 6:36 AM, Arnd Bergmann wrote:
> > On Tue, Nov 13, 2018 at 5:03 PM <thor.thayer@...ux.intel.com> wrote:
> >>
> >> From: Thor Thayer <thor.thayer@...ux.intel.com>

> >> +static int socfpga_is_s10(void)
> >> +{
> >> +       return of_machine_is_compatible("altr,socfpga-stratix10");
> >> +}
> >
> > I don't really like the way you are checking for a specific here
> > here though, that is something that should only be done in
> > an absolute emergency when there is no way of fixing the
> > device tree files.
> >
> > Since this is a new driver for a device that is not used in
> > mainline kernels yet (AFAICT), let's fix the binding and add
> > a proper detection method here.
> >
> Thank you. I'm not completely clear on this. Are you saying this
> function should test for a new compatible that is assigned to Stratix10
> in the binding ("altr,sys-mgr-s10") instead of the machine name?

Yes, exactly.

      Arnd