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authorAndreas Herrmann <andreas.herrmann3@amd.com>2008-08-06 16:23:08 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-11 21:30:59 +0200
commit012f09e7942716d5f4339f1fd9a831a485bb1d4a (patch)
tree487654a5b902975efe8637bc5d048ade15cc50b0 /arch
parent10fec20ef5eec1c91913baec1225400f0d02df40 (diff)
x86: compile pat debugfs interface only if CONFIG_X86_PAT is set
Recently I've run a kernel w/o PAT support and wondered why there was a file "x86/pat_memtype_list" in debugfs. Of course it's empty if PAT is disabled ... so just get rid of this interface if PAT is disabled. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/mm/pat.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 2fe30916d4b..647b1c4de71 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -492,7 +492,7 @@ void unmap_devmem(unsigned long pfn, unsigned long size, pgprot_t vma_prot)
free_memtype(addr, addr + size);
}
-#if defined(CONFIG_DEBUG_FS)
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_X86_PAT)
/* get Nth element of the linked list */
static struct memtype *memtype_get_idx(loff_t pos)
@@ -576,4 +576,4 @@ static int __init pat_memtype_list_init(void)
late_initcall(pat_memtype_list_init);
-#endif /* CONFIG_DEBUG_FS */
+#endif /* CONFIG_DEBUG_FS && CONFIG_X86_PAT */