sh: use PFN_DOWN macro

[firefly-linux-kernel-4.4.55.git] / arch / sh / mm / init.c

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 2790b6a64157f79663fe5232afe9f857e6d81cb7..17f486233db03c4d6d14d4c283b2699a73b60caa 100644 (file)
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -488,7 +488,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 int arch_add_memory(int nid, u64 start, u64 size)
 {
        pg_data_t *pgdat;
-       unsigned long start_pfn = start >> PAGE_SHIFT;
+       unsigned long start_pfn = PFN_DOWN(start);
        unsigned long nr_pages = size >> PAGE_SHIFT;
        int ret;
 
@@ -517,7 +517,7 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #ifdef CONFIG_MEMORY_HOTREMOVE
 int arch_remove_memory(u64 start, u64 size)
 {
-       unsigned long start_pfn = start >> PAGE_SHIFT;
+       unsigned long start_pfn = PFN_DOWN(start);
        unsigned long nr_pages = size >> PAGE_SHIFT;
        struct zone *zone;
        int ret;