linux-kernel - [PATCH] linux/memcontrol.h: Remove duplicate struct declaration

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Date:   Tue, 30 Mar 2021 10:02:36 +0800
From:   Wan Jiabing <wanjiabing@...o.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Roman Gushchin <guro@...com>, Michal Hocko <mhocko@...e.com>,
        Muchun Song <songmuchun@...edance.com>,
        Alex Shi <alex.shi@...ux.alibaba.com>,
        Alexander Duyck <alexander.h.duyck@...ux.intel.com>,
        Chris Down <chris@...isdown.name>,
        Yafang Shao <laoar.shao@...il.com>,
        Wei Yang <richard.weiyang@...il.com>,
        linux-kernel@...r.kernel.org
Cc:     kael_w@...h.net, Wan Jiabing <wanjiabing@...o.com>
Subject: [PATCH] linux/memcontrol.h: Remove duplicate struct declaration

struct mem_cgroup is declared twice. One has been declared
at forward struct declaration. Remove the duplicate.

Signed-off-by: Wan Jiabing <wanjiabing@...o.com>
---
 include/linux/memcontrol.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 0c04d39a7967..f0ae33a0f175 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1068,8 +1068,6 @@ void split_page_memcg(struct page *head, unsigned int nr);
 #define MEM_CGROUP_ID_SHIFT	0
 #define MEM_CGROUP_ID_MAX	0
 
-struct mem_cgroup;
-
 static inline struct mem_cgroup *page_memcg(struct page *page)
 {
 	return NULL;
-- 
2.25.1