linux-kernel - [PATCH] arm64/mm: Drop redundant addr increment in set_huge_pte

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Message-Id: <20250715043922.57195-1-anshuman.khandual@arm.com>
Date: Tue, 15 Jul 2025 05:39:22 +0100
From: Anshuman Khandual <anshuman.khandual@....com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Ryan Roberts <ryan.roberts@....com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] arm64/mm: Drop redundant addr increment in set_huge_pte_at()

The 'addr' need not be incremented while operating on single entry basis as
BBM is not required for such updates.

Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will@...nel.org>
Cc: Ryan Roberts <ryan.roberts@....com>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
---
 arch/arm64/mm/hugetlbpage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 0c8737f4f2ce..1d90a7e75333 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -225,7 +225,7 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 	ncontig = num_contig_ptes(sz, &pgsize);
 
 	if (!pte_present(pte)) {
-		for (i = 0; i < ncontig; i++, ptep++, addr += pgsize)
+		for (i = 0; i < ncontig; i++, ptep++)
 			__set_ptes_anysz(mm, ptep, pte, 1, pgsize);
 		return;
 	}
-- 
2.30.2