1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/crash_dump.c b/kernel/crash_dump.c
index 334c37f5218a..fccb27dbc623 100644
--- a/kernel/crash_dump.c
+++ b/kernel/crash_dump.c
@@ -14,10 +14,12 @@
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
+#include <asm/kexec.h>
 
 /* Stores the physical address of elf header of crash image. */
 unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
 
+#ifndef HAVE_ARCH_COPY_OLDMEM_PAGE
 /**
  * copy_oldmem_page - copy one page from "oldmem"
  * @pfn: page frame number to be copied
@@ -59,3 +61,4 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
         kfree(page);
         return csize;
 }
+#endif