[-mm patch] lib/ioremap.c must #include <linux/mm.h>

[Adrian Bunk <bunk@stusta.de>]

generic-ioremap_page_range-implementation.patch causes the following 
compile error with -Werror-implicit-function-declaration on ia64:

<--  snip  -->

  CC      lib/ioremap.o
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c: In function 'ioremap_pte_range':
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c:21: error: implicit declaration of function 'pte_alloc_kernel'
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c:21: warning: assignment makes pointer from integer without a cast
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c: In function 'ioremap_pmd_range':
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c:39: error: implicit declaration of function 'pmd_alloc'
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c:39: warning: assignment makes pointer from integer without a cast
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c: In function 'ioremap_pud_range':
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c:57: error: implicit declaration of function 'pud_alloc'
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/lib/ioremap.c:57: warning: assignment makes pointer from integer without a cast
make[2]: *** [lib/ioremap.o] Error 1

<--  snip  -->

Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6.18-rc5-mm1/lib/ioremap.c.old	2006-09-04 02:01:22.000000000 +0200
+++ linux-2.6.18-rc5-mm1/lib/ioremap.c	2006-09-04 02:01:32.000000000 +0200
@@ -7,6 +7,7 @@
  */
 #include <linux/io.h>
 #include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include <asm/cacheflush.h>
 #include <asm/pgtable.h>

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