mm/memory_hotplug: fix section mismatch

With CONFIG_MEMORY_HOTPLUG I got following warning: WARNING: vmlinux.o(.text+0x1276b0): Section mismatch in reference from the function hotadd_new_pgdat() to the function .meminit.text:free_area_init_node() The function hotadd_new_pgdat() references the function __meminit free_area_init_node(). This is often because hotadd_new_pgdat lacks a __meminit annotation or the annotation of free_area_init_node is wrong. Use __ref to fix this. Signed-off-by: Hidetoshi Seto <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Yasunori Goto <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
josf · Nov 18, 2009 · e131933 · e131933
1 parent 410d7a9
commit e131933
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
@@ -447,7 +447,8 @@ int online_pages(unsigned long pfn, unsigned long nr_pages)
 }
 #endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
 
-static pg_data_t *hotadd_new_pgdat(int nid, u64 start)
+/* we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG */
+static pg_data_t __ref *hotadd_new_pgdat(int nid, u64 start)
 {
 	struct pglist_data *pgdat;
 	unsigned long zones_size[MAX_NR_ZONES] = {0};