From a10e995749a6c65833edd201c55665e5d44d14fc Mon Sep 17 00:00:00 2001
From: Wan Jiabing <wanjiabing@vivo.com>
Date: Thu, 29 Apr 2021 22:57:01 -0700
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.

Link: https://lkml.kernel.org/r/20210330020246.2265371-1-wanjiabing@vivo.com
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/memcontrol.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index bcf92b99f0017..5904716f29ba4 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1123,8 +1123,6 @@ unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order,
 #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;
-- 
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