From c035290424a9b7b64477752058b460d0ecc21987 Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Fri, 16 Sep 2022 15:22:50 +0800
Subject: [PATCH] mm/page_alloc: use local variable zone_idx directly

Use local variable zone_idx directly since it holds the exact value of
zone_idx().  No functional change intended.

Link: https://lkml.kernel.org/r/20220916072257.9639-10-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c055b4c..ec865cf 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6881,7 +6881,7 @@ void __ref memmap_init_zone_device(struct zone *zone,
 	unsigned long start = jiffies;
 	int nid = pgdat->node_id;
 
-	if (WARN_ON_ONCE(!pgmap || zone_idx(zone) != ZONE_DEVICE))
+	if (WARN_ON_ONCE(!pgmap || zone_idx != ZONE_DEVICE))
 		return;
 
 	/*
-- 
2.7.4