linux-kernel - [PATCH -next 3/3] mm/debug_vm_pgtable: Remove useless pfn

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Message-ID: <20210401022315.2911967-3-liushixin2@huawei.com>
Date:   Thu, 1 Apr 2021 10:23:15 +0800
From:   Shixin Liu <liushixin2@...wei.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Anshuman Khandual <anshuman.khandual@....com>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        Shixin Liu <liushixin2@...wei.com>
Subject: [PATCH -next 3/3] mm/debug_vm_pgtable: Remove useless pfn_pmd()

The call to pfn_pmd() here is redundant.

Signed-off-by: Shixin Liu <liushixin2@...wei.com>
---
 mm/debug_vm_pgtable.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index c379bbe42c2a..9f4c4a114229 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -196,7 +196,6 @@ static void __init pmd_advanced_tests(struct mm_struct *mm,
 
 	pgtable_trans_huge_deposit(mm, pmdp, pgtable);
 
-	pmd = pfn_pmd(pfn, prot);
 	set_pmd_at(mm, vaddr, pmdp, pmd);
 	pmdp_set_wrprotect(mm, vaddr, pmdp);
 	pmd = READ_ONCE(*pmdp);
-- 
2.25.1