linux-kernel - [PATCH 4/5] xen, x86/headers: Add <linux/device.h> dependency to <asm/xen/page.h>

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Date:   Wed,  1 Feb 2017 10:51:16 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Andy Lutomirski <luto@...capital.net>,
        Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 4/5] xen, x86/headers: Add <linux/device.h> dependency to <asm/xen/page.h>

The following patch (not upstream yet):

  "x86/boot/e820: Remove spurious asm/e820/api.h inclusions"

Removed the (spurious) <asm/e820.h> include line from <asm/pgtable.h> to
reduce header file dependencies - but a Xen header has (unintentionally)
learned to rely on the indirect inclusion of <linux/device.h>.

This resulted in the following (harmless) build warning:

   arch/x86/include/asm/xen/page.h:302:7: warning: 'struct device' declared inside parameter list

Include <linux/device.h> explicitly.

No change in functionality.

Reported-by: kbuild test robot <fengguang.wu@...el.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: <stefano.stabellini@...citrix.com>
Cc: Juergen Gross <jgross@...e.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/include/asm/xen/page.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 33cbd3db97b9..64c5e745ebad 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -6,6 +6,7 @@
 #include <linux/spinlock.h>
 #include <linux/pfn.h>
 #include <linux/mm.h>
+#include <linux/device.h>
 
 #include <linux/uaccess.h>
 #include <asm/page.h>
-- 
2.7.4