linux-kernel - [PATCH] mm/hugetlb.c: Clean code by removing unnecessary initialization

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Date:   Tue,  3 Mar 2020 22:23:54 +0100
From:   mateusznosek0@...il.com
To:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc:     Mateusz Nosek <mateusznosek0@...il.com>, mike.kravetz@...cle.com,
        akpm@...ux-foundation.org
Subject: [PATCH] mm/hugetlb.c: Clean code by removing unnecessary initialization

From: Mateusz Nosek <mateusznosek0@...il.com>

Previously variable 'check_addr' was initialized,
but was not read later before reassigning.
So the initialization can be removed.

Signed-off-by: Mateusz Nosek <mateusznosek0@...il.com>
---
 mm/hugetlb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index e4116385a4e1..7fb31750e670 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5021,7 +5021,7 @@ static bool vma_shareable(struct vm_area_struct *vma, unsigned long addr)
 void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma,
 				unsigned long *start, unsigned long *end)
 {
-	unsigned long check_addr = *start;
+	unsigned long check_addr;
 
 	if (!(vma->vm_flags & VM_MAYSHARE))
 		return;
-- 
2.17.1