linux-kernel - [PATCH] alpha: fix build breakage in asm/cacheflush.h

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Date:	Tue, 14 Sep 2010 11:00:22 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Richard Henderson <rth@...ddle.net>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Matt Turner <mattst88@...il.com>, linux-alpha@...r.kernel.org,
	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	Rusty Russell <rusty@...tcorp.com.au>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] alpha: fix build breakage in asm/cacheflush.h

Alpha SMP flush_icache_user_range() is implemented as an inline
function inside include/asm/cacheflush.h.  It dereferences @current
but doesn't include linux/sched.h and thus causes build failure if
linux/sched.h wasn't included previously.  Fix it by including the
needed header file explicitly.

Signed-off-by: Tejun Heo <tj@...nel.org>
Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 arch/alpha/include/asm/cacheflush.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.h
index 01d71e1..012f124 100644
--- a/arch/alpha/include/asm/cacheflush.h
+++ b/arch/alpha/include/asm/cacheflush.h
@@ -43,6 +43,8 @@ extern void smp_imb(void);
 /* ??? Ought to use this in arch/alpha/kernel/signal.c too.  */

 #ifndef CONFIG_SMP
+#include <linux/sched.h>
+
 extern void __load_new_mm_context(struct mm_struct *);
 static inline void
 flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
--
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