[PATCH] mm: page_alloc: fix variable type in zonelist type iteration

From: Johannes Weiner
Date: Tue Dec 08 2015 - 09:03:50 EST


/home/hannes/src/linux/linux/mm/page_alloc.c: In function âbuild_zonelistsâ:
/home/hannes/src/linux/linux/mm/page_alloc.c:4171:16: warning: comparison between âenum zone_typeâ and âenum <anonymous>â [-Wenum-compare]
for (i = 0; i < MAX_ZONELISTS; i++) {
^

MAX_ZONELISTS has never been of enum zone_type, probably gcc only
recently started including -Wenum-compare in -Wall.

Make i a simple int.

Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
---
mm/page_alloc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d06a7d0..d5f291b 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4160,8 +4160,7 @@ static void set_zonelist_order(void)

static void build_zonelists(pg_data_t *pgdat)
{
- int j, node, load;
- enum zone_type i;
+ int i, j, node, load;
nodemask_t used_mask;
int local_node, prev_node;
struct zonelist *zonelist;
--
2.6.3

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