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From:   Alex Shi <alex.shi@linux.alibaba.com>
To:     cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, akpm@linux-foundation.org,
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Cc:     Alex Shi <alex.shi@linux.alibaba.com>
Subject: [PATCH v4 2/9] mm/huge_memory: fix uninitialized compiler warning
Date:   Tue, 19 Nov 2019 20:23:16 +0800
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../mm/huge_memory.c: In function ‘split_huge_page_to_list’:
../mm/huge_memory.c:2766:9: warning: ‘flags’ may be used uninitialized
in this function [-Wmaybe-uninitialized]
  lruvec = lock_page_lruvec_irqsave(head, pgdata, flags);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
---
 mm/huge_memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 13cc93785006..4cdfdbeb6b2b 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2699,7 +2699,7 @@ int split_huge_page_to_list(struct page *page, struct list_head *list)
 	struct address_space *mapping = NULL;
 	int count, mapcount, extra_pins, ret;
 	bool mlocked;
-	unsigned long flags;
+	unsigned long flags = 0;
 	pgoff_t end;
 
 	VM_BUG_ON_PAGE(is_huge_zero_page(page), page);
-- 
1.8.3.1