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mm/hotplug: fix build warning when CONFIG_MEMORY_HOTREMOVE=n

PATCH Jianguo Wu 1 participant 1 message Mar 12, 2013

Subsystems (3)
Memory management x86 x86 MM
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Jianguo Wu

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There is a warning while building kernel with
CONFIG_MEMORY_HOTPLUG=y && CONFIG_MEMORY_HOTREMOVE=n:
arch/x86/mm/init_64.c:1024: warning:kernel_physical_mapping_remove defined but not used

So move kernel_physical_mapping_remove() into "#ifdef CONFIG_MEMORY_HOTREMOVE" block

Signed-off-by Jianguo Wu <[email protected]>
---
 arch/x86/mm/init_64.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
arch/x86/mm/init_64.c +1 -1
index 474e28f..dafdeb2 100644
@@ -1019,6 +1019,7 @@ void __ref vmemmap_free(struct page *memmap, unsigned long nr_pages)
 	remove_pagetable(start, end, false);
 }
 
+#ifdef CONFIG_MEMORY_HOTREMOVE
 static void __meminit
 kernel_physical_mapping_remove(unsigned long start, unsigned long end)
 {

@@ -1028,7 +1029,6 @@ kernel_physical_mapping_remove(unsigned long start, unsigned long end)
 	remove_pagetable(start, end, true);
 }
 
-#ifdef CONFIG_MEMORY_HOTREMOVE
 int __ref arch_remove_memory(u64 start, u64 size)
 {
 	unsigned long start_pfn = start >> PAGE_SHIFT;
Signature · 7 lines
1.7.6.1

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