Messages in this thread Patch in this message | | | From | Tang Chen <> | Subject | [PATCH 2/3] mem-hotplug: Put kernel_physical_mapping_remove() declaration in CONFIG_MEMORY_HOTREMOVE. | Date | Mon, 15 Apr 2013 17:46:46 +0800 |
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kernel_physical_mapping_remove() is only called by arch_remove_memory() in init_64.c, which is enclosed in CONFIG_MEMORY_HOTREMOVE. So when we don't configure CONFIG_MEMORY_HOTREMOVE, the compiler will give a warning:
warning: ‘kernel_physical_mapping_remove’ defined but not used
So put kernel_physical_mapping_remove() in CONFIG_MEMORY_HOTREMOVE.
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> --- arch/x86/mm/init_64.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 474e28f..dafdeb2 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -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; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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