linux-kernel - [PATCH v1] mm: fix warning in comparing enumerator

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Date:	Tue,  1 Dec 2015 17:37:12 +0900
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Yaowei Bai <baiyaowei@...s.chinamobile.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Naoya Horiguchi <nao.horiguchi@...il.com>
Subject: [PATCH v1] mm: fix warning in comparing enumerator

I saw the following warning when building mmotm-2015-11-25-17-08.

mm/page_alloc.c:4185:16: warning: comparison between 'enum zone_type' and 'enum <anonymous>' [-Wenum-compare]
  for (i = 0; i < MAX_ZONELISTS; i++) {
                ^

enum zone_type is named like ZONE_* which is different from ZONELIST_*, so
we are somehow doing incorrect comparison. Just fixes it.

Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
---
 mm/page_alloc.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git mmotm-2015-11-25-17-08/mm/page_alloc.c mmotm-2015-11-25-17-08_patched/mm/page_alloc.c
index e267faa..b801e6f 100644
--- mmotm-2015-11-25-17-08/mm/page_alloc.c
+++ mmotm-2015-11-25-17-08_patched/mm/page_alloc.c
@@ -4174,8 +4174,7 @@ 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;
-- 
1.7.1

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