[RFC][PATCH] unify pfn_to_page [15/25] powerpc pfn_to_page/page_to_pfn

[KAMEZAWA Hiroyuki]

It looks powerpc never uses CONFIG_DISCONTIGMEM( uses SPARSEMEM ).
just replace FLATMEM case.

Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

Index: cleanup_pfn_page/include/asm-powerpc/page.h
===================================================================
--- cleanup_pfn_page.orig/include/asm-powerpc/page.h
+++ cleanup_pfn_page/include/asm-powerpc/page.h
@@ -69,8 +69,6 @@
 #endif

 #ifdef CONFIG_FLATMEM
-#define pfn_to_page(pfn)	(mem_map + (pfn))
-#define page_to_pfn(page)	((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
 #endif


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