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Message-ID: <20230719103213.75999895@md1za8fc.ad001.siemens.net>
Date:   Wed, 19 Jul 2023 10:32:13 +0200
From:   Henning Schild <henning.schild@...mens.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Lee Jones <lee@...nel.org>, Hans de Goede <hdegoede@...hat.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-kernel@...r.kernel.org, linux-leds@...r.kernel.org,
        platform-driver-x86@...r.kernel.org,
        linux-watchdog@...r.kernel.org, Pavel Machek <pavel@....cz>,
        Mark Gross <markgross@...nel.org>,
        Tobias Schaffner <tobias.schaffner@...mens.com>
Subject: Re: [PATCH 3/3] platform/x86: Move all simatic ipc drivers to the
 subdirectory siemens

Am Tue, 18 Jul 2023 18:15:06 +0300
schrieb Andy Shevchenko <andriy.shevchenko@...ux.intel.com>:

> On Tue, Jul 18, 2023 at 04:47:27PM +0200, Henning Schild wrote:
> > Am Tue, 18 Jul 2023 17:23:30 +0300
> > schrieb Andy Shevchenko <andriy.shevchenko@...ux.intel.com>:
> >   
> > > On Tue, Jul 18, 2023 at 12:52:13PM +0200, Henning Schild wrote:  
> > > > Users without a Siemens Simatic IPC will not care about any of
> > > > these drivers. Users who do care can enable the submenu and all
> > > > drivers behind it will be enabled.    
> 
> ...
> 
> > > >  # Siemens Simatic Industrial PCs
> > > > +obj-$(CONFIG_X86_PLATFORM_DRIVERS_SIEMENS)		+=
> > > > siemens/    
> > > 
> > > Do you need conditional here? We have stumbled over similar for
> > > entire intel subfolder, it might affect the rest as well when you
> > > don't expect it.
> > > 
> > > obj-y		+= siemens/
> > > 
> > > ?  
> > 
> > It was requested to be done like that by Hans, he wanted me to do a
> > similar thing that  
> 
> "Similar" is not the "same". :-)
> 
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f1e1ea516721d1ea0b21327ff9e6cb2c2bb86e28
> > is doing.
> > 
> > And that is what i did. If there was a y ... the whole "one switch
> > to rule them all" story would not work out anymore.  
> 
> See these:
> https://git.kernel.org/torvalds/c/8bd836feb6ca
> https://git.kernel.org/torvalds/c/4f6c131c3c31

Ok i will switch that to a simple y without a CONFIG item to it, and
start that inheritance chain at SIEMENS_SIMATIC_IPC.

That in fact also makes sure the interface does not change and "make
olddefconfig" does not turn the Siemens stuff back off because the
newly introduced guard is blocking/hiding what used to be turned on.

Thanks!
Henning

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