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Diffstat (limited to 'arch/x86_64/mm/init.c')
-rw-r--r--arch/x86_64/mm/init.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index 72f140f81b70..d14fb2dfbfc4 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -678,16 +678,15 @@ void free_initmem(void)
678 678
679#ifdef CONFIG_DEBUG_RODATA 679#ifdef CONFIG_DEBUG_RODATA
680 680
681extern char __start_rodata, __end_rodata;
682void mark_rodata_ro(void) 681void mark_rodata_ro(void)
683{ 682{
684 unsigned long addr = (unsigned long)&__start_rodata; 683 unsigned long addr = (unsigned long)__start_rodata;
685 684
686 for (; addr < (unsigned long)&__end_rodata; addr += PAGE_SIZE) 685 for (; addr < (unsigned long)__end_rodata; addr += PAGE_SIZE)
687 change_page_attr_addr(addr, 1, PAGE_KERNEL_RO); 686 change_page_attr_addr(addr, 1, PAGE_KERNEL_RO);
688 687
689 printk ("Write protecting the kernel read-only data: %luk\n", 688 printk ("Write protecting the kernel read-only data: %luk\n",
690 (&__end_rodata - &__start_rodata) >> 10); 689 (__end_rodata - __start_rodata) >> 10);
691 690
692 /* 691 /*
693 * change_page_attr_addr() requires a global_flush_tlb() call after it. 692 * change_page_attr_addr() requires a global_flush_tlb() call after it.