linux-kernel - [PATCH v2 09/16] mm/page_alloc: use local variable zone

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Date:   Fri, 16 Sep 2022 15:22:50 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>, <david@...hat.com>,
        <osalvador@...e.de>, <anshuman.khandual@....com>
CC:     <willy@...radead.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <linmiaohe@...wei.com>
Subject: [PATCH v2 09/16] 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.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
Reviewed-by: David Hildenbrand <david@...hat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@....com>
Reviewed-by: Oscar Salvador <osalvador@...e.de>
---
 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 8fcc905ef317..83b2cb93d6fd 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6873,7 +6873,7 @@ 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;
 
 	/*
-- 
2.23.0