linux-kernel - [Patch] uml: fix undeclared variables

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Date:	Tue, 18 Nov 2008 17:42:51 +0000
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Al Viro <viro@...iv.linux.org.uk>, Andrew Morton <akpm@...l.org>,
	Jeff Dike <jdike@...toit.com>,
	user-mode-linux-devel@...ts.sourceforge.net
Subject: [Patch] uml: fix undeclared variables


Fix three compile errors about undeclared variables in
arch/um/kernel/mem.c.

Signed-off-by: WANG Cong <wangcong@...ux.org>
Cc: Jeff Dike <jdike@...toit.com>
Cc: Al Viro <viro@...iv.linux.org.uk>


---
diff --git a/arch/um/include/asm/fixmap.h b/arch/um/include/asm/fixmap.h
index 69c0252..0af143d 100644
--- a/arch/um/include/asm/fixmap.h
+++ b/arch/um/include/asm/fixmap.h
@@ -41,6 +41,9 @@ enum fixed_addresses {
 	__end_of_fixed_addresses
 };
 
+extern pte_t *pkmap_page_table;
+extern pte_t *kmap_pte;
+extern pgprot_t kmap_prot;
 extern void __set_fixmap (enum fixed_addresses idx,
 			  unsigned long phys, pgprot_t flags);
 
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