x86: mm/init_XX.c declare functions before they get used

included <asm/smp.h> in mm/init_32.c for zap_low_mappings()

declared free_initmem() in asm-x86/page_XX.h
Signed-off-by: NJaswinder Singh <jaswinder@infradead.org>

arch/x86/mm/init_32.c

@@ -47,6 +47,7 @@
 #include <asm/paravirt.h>
 #include <asm/setup.h>
 #include <asm/cacheflush.h>
+#include <asm/smp.h>
 
 unsigned int __VMALLOC_RESERVE = 128 << 20;
 

include/asm-x86/page_32.h

@@ -96,6 +96,7 @@ extern void find_low_pfn_range(void);
 extern unsigned long init_memory_mapping(unsigned long start,
 					 unsigned long end);
 extern void initmem_init(unsigned long, unsigned long);
+extern void free_initmem(void);
 extern void setup_bootmem_allocator(void);
 
 

include/asm-x86/page_64.h

@@ -91,6 +91,7 @@ extern unsigned long init_memory_mapping(unsigned long start,
 					 unsigned long end);
 
 extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn);
+extern void free_initmem(void);
 
 extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
 extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);