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SubjectRe: [PATCH v3 treewide] headers: separate linux/mod_devicetable.h from linux/platform_device.h
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@infradead.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@infradead.org>
>> Reported-by: kbuild test robot <lkp@intel.com> # drivers/media/platform/vimc/
>> Reported-by: kbuild test robot <lkp@intel.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@brown.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@brown.name>
---
drivers/watchdog/mt7621_wdt.c | 1 +
drivers/watchdog/rt2880_wdt.c | 1 +
2 files changed, 2 insertions(+)

diff --git a/drivers/watchdog/mt7621_wdt.c b/drivers/watchdog/mt7621_wdt.c
index 5c4a764717c4..81208cd3f4ec 100644
--- a/drivers/watchdog/mt7621_wdt.c
+++ b/drivers/watchdog/mt7621_wdt.c
@@ -17,6 +17,7 @@
#include <linux/watchdog.h>
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
+#include <linux/mod_devicetable.h>

#include <asm/mach-ralink/ralink_regs.h>

diff --git a/drivers/watchdog/rt2880_wdt.c b/drivers/watchdog/rt2880_wdt.c
index 98967f0a7d10..db7c57d82cfd 100644
--- a/drivers/watchdog/rt2880_wdt.c
+++ b/drivers/watchdog/rt2880_wdt.c
@@ -18,6 +18,7 @@
#include <linux/watchdog.h>
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
+#include <linux/mod_devicetable.h>

#include <asm/mach-ralink/ralink_regs.h>

--
2.14.0.rc0.dirty
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