linux-kernel - Re: [PATCH v3 treewide] headers: separate linux/mod_devicetable.h from linux/platform

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Date:   Sat, 29 Dec 2018 13:23:47 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     NeilBrown <neil@...wn.name>
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        kbuild test robot <lkp@...el.com>
Subject: Re: [PATCH v3 treewide] headers: separate linux/mod_devicetable.h
 from linux/platform_device.h

On Sat, Dec 29, 2018 at 12:32:30PM +1100, NeilBrown wrote:
> On Sat, Jul 07 2018, Greg Kroah-Hartman wrote:
> 
> > On Tue, Jun 19, 2018 at 10:47:28PM -0700, Randy Dunlap wrote:
> >> From: Randy Dunlap <rdunlap@...radead.org>
> >> 
> >> At over 4000 #includes, <linux/platform_device.h> is the 9th most
> >> #included header file in the Linux kernel.  It does not need
> >> <linux/mod_devicetable.h>, so drop that header and explicitly add
> >> <linux/mod_devicetable.h> to source files that need it.
> >> 
> >>    4146 #include <linux/platform_device.h>
> >> 
> >> After this patch, there are 225 files that use <linux/mod_devicetable.h>,
> >> for a reduction of around 3900 times that <linux/mod_devicetable.h>
> >> does not have to be read & parsed.
> >> 
> >>     225 #include <linux/mod_devicetable.h>
> >> 
> >> This patch was build-tested on 20 different arch-es.
> >> 
> >> It also makes these drivers SubmitChecklist#1 compliant.
> >> 
> >> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> >> Reported-by: kbuild test robot <lkp@...el.com> # drivers/media/platform/vimc/
> >> Reported-by: kbuild test robot <lkp@...el.com> # drivers/pinctrl/pinctrl-u300.c
> >> ---
> >> v3: add fix for drivers/pinctrl/pinctrl-u300.c
> >> v2: add fixes for drivers/media/platform/vimc/
> >
> > I've queued this up now, let's see what else breaks!  :)
> 
> Some MIPS watchdog drivers break, at least.
> 
> NeilBrown
> 
> From: NeilBrown <neil@...wn.name>
> Subject: [PATCH] Fix compilation problem for mt7621_wdt.c and rt2880_wdt.c
> 
> These files need
>    #include <linux/mod_devicetable.h>
> to compile correctly.
> 
> Fixes: ac3167257b9f ("headers: separate linux/mod_devicetable.h from linux/platform_device.h")
> Signed-off-by: NeilBrown <neil@...wn.name>
> ---
>  drivers/watchdog/mt7621_wdt.c | 1 +
>  drivers/watchdog/rt2880_wdt.c | 1 +
>  2 files changed, 2 insertions(+)

Great, can you send these to the watchdog maintainer to queue up?

thanks,

greg k-h