x86: e820.c declare pci_mem_start before they get used
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index 16a31e2..213d1ed 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -64,6 +64,7 @@
extern struct e820map e820;
extern struct e820map e820_saved;
+extern unsigned long pci_mem_start;
extern int e820_any_mapped(u64 start, u64 end, unsigned type);
extern int e820_all_mapped(u64 start, u64 end, unsigned type);
extern void e820_add_region(u64 start, u64 size, int type);