mm: make early_pfn_to_nid() a C function

Fix this (sparc64) mm/sparse-vmemmap.c: In function `vmemmap_verify': mm/sparse-vmemmap.c:64: warning: unused variable `pfn' by switching to a C function which touches its arg. (reason 3,555 why macros are bad) Also, the `nid' arg was misnamed. Reviewed-by: Christoph Lameter <[email protected]> Acked-by: Andy Whitcroft <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Andi Kleen <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
fracktal · Apr 28, 2008 · b454456 · b454456
1 parent ac6aadb
commit b454456
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
@@ -841,7 +841,10 @@ static inline struct zoneref *first_zones_zonelist(struct zonelist *zonelist,
 
 #if !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID) && \
 	!defined(CONFIG_ARCH_POPULATES_NODE_MAP)
-#define early_pfn_to_nid(nid)  (0UL)
+static inline unsigned long early_pfn_to_nid(unsigned long pfn)
+{
+	return 0;
+}
 #endif
 
 #ifdef CONFIG_FLATMEM