mm/memblock.c: use PFN_PHYS()

Replace ((phys_addr_t)(x) << PAGE_SHIFT) by pfn macro.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/memblock.c b/mm/memblock.c
index c5c20c46f97e..e9d6ca9a01a9 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1253,7 +1253,7 @@ phys_addr_t __init memblock_mem_size(unsigned long limit_pfn)
                 pages += end_pfn - start_pfn;
         }
 
-        return (phys_addr_t)pages << PAGE_SHIFT;
+        return PFN_PHYS(pages);
 }
 
 /* lowest address */
@@ -1324,7 +1324,7 @@ int __init_memblock memblock_search_pfn_nid(unsigned long pfn,
                          unsigned long *start_pfn, unsigned long *end_pfn)
 {
         struct memblock_type *type = &memblock.memory;
-        int mid = memblock_search(type, (phys_addr_t)pfn << PAGE_SHIFT);
+        int mid = memblock_search(type, PFN_PHYS(pfn));
 
         if (mid == -1)
                 return -1;