linux-kernel - [PATCH] mm/hugetlb: Simplify the calculation of variables

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Date:   Tue, 26 Jan 2021 14:44:28 +0800
From:   Jiapeng Zhong <abaci-bugfix@...ux.alibaba.com>
To:     mike.kravetz@...cle.com
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Jiapeng Zhong <abaci-bugfix@...ux.alibaba.com>
Subject: [PATCH] mm/hugetlb: Simplify the calculation of variables

Fix the following coccicheck warnings:

./mm/hugetlb.c:3372:20-22: WARNING !A || A && B is equivalent to
!A || B.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Zhong <abaci-bugfix@...ux.alibaba.com>
---
 mm/hugetlb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index cbf32d2..5e6a6e7 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3367,8 +3367,7 @@ static unsigned int allowed_mems_nr(struct hstate *h)
 	mpol_allowed = policy_nodemask_current(gfp_mask);
 
 	for_each_node_mask(node, cpuset_current_mems_allowed) {
-		if (!mpol_allowed ||
-		    (mpol_allowed && node_isset(node, *mpol_allowed)))
+		if (!mpol_allowed || node_isset(node, *mpol_allowed))
 			nr += array[node];
 	}
 
-- 
1.8.3.1