[PATCH] mm: fix section mismatch warning in set_pageblock_order

[Vladimir Murzin <murzin.v@xxxxxxxxx>]

While cross-building for PPC I've got

WARNING: mm/built-in.o(.meminit.text+0xeb0): Section mismatch in reference
from the function .free_area_init_core.isra.47() to the function
.init.text:.set_pageblock_order() The function __meminit
.free_area_init_core.isra.47() references a function __init
.set_pageblock_order(). If .set_pageblock_order is only used by
.free_area_init_core.isra.47 then annotate .set_pageblock_order with a
matching annotation.

Annotation for free_area_init_core depends on CONFIG_SPARSEMEM. Use the same
annotation (__paginginit) for set_pageblock_order.

Signed-off-by: Vladimir Murzin <murzin.v@xxxxxxxxx>
---
 mm/page_alloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c2b59db..818e0b4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4586,7 +4586,7 @@ static inline void setup_usemap(struct pglist_data *pgdat, struct zone *zone,
 #ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE
 
 /* Initialise the number of pages represented by NR_PAGEBLOCK_BITS */
-void __init set_pageblock_order(void)
+void __paginginit set_pageblock_order(void)
 {
 	unsigned int order;
 
@@ -4614,7 +4614,7 @@ void __init set_pageblock_order(void)
  * include/linux/pageblock-flags.h for the values of pageblock_order based on
  * the kernel config
  */
-void __init set_pageblock_order(void)
+void __paginginit set_pageblock_order(void)
 {
 }
 
-- 
1.8.1.5

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