The patch titled
Subject: arch/x86/mm/init_64.c: fix build warning when CONFIG_MEMORY_HOTREMOVE=n
has been added to the -mm tree. Its filename is
arch-x86-mm-init_64c-fix-build-warning-when-config_memory_hotremove=n.patch
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------------------------------------------------------
From: Jianguo Wu <wujianguo@xxxxxxxxxx>
Subject: arch/x86/mm/init_64.c: fix build warning when CONFIG_MEMORY_HOTREMOVE=n
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 <wujianguo@xxxxxxxxxx>
Cc: Wen Congyang <wency@xxxxxxxxxxxxxx>
Cc: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: Liujiang <jiang.liu@xxxxxxxxxx>
Cc: qiuxishi <qiuxishi@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/init_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86/mm/init_64.c~arch-x86-mm-init_64c-fix-build-warning-when-config_memory_hotremove=n arch/x86/mm/init_64.c
--- a/arch/x86/mm/init_64.c~arch-x86-mm-init_64c-fix-build-warning-when-config_memory_hotremove=n
+++ a/arch/x86/mm/init_64.c
@@ -1019,6 +1019,7 @@ void __ref vmemmap_free(struct page *mem
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
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;
_
Patches currently in -mm which might be from wujianguo@xxxxxxxxxx are
mm-remove_memory-fix-end_pfn-setting.patch
arch-x86-mm-init_64c-fix-build-warning-when-config_memory_hotremove=n.patch
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