[PATCH] typeof __page_to_pfn with SPARSEMEM=y
With CONFIG_SPARSEMEM=y:
mm/rmap.c:579: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'int'
Make __page_to_pfn() return unsigned long.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index 8078cbd..30d8d33 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -54,7 +54,7 @@
#define __page_to_pfn(pg) \
({ struct page *__pg = (pg); \
int __sec = page_to_section(__pg); \
- __pg - __section_mem_map_addr(__nr_to_section(__sec)); \
+ (unsigned long)(__pg - __section_mem_map_addr(__nr_to_section(__sec))); \
})
#define __pfn_to_page(pfn) \