From: Tejun Heo <tj@kernel.org>
To: catalin.marinas@arm.com, will@kernel.org
Cc: ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net,
martin.lau@linux.dev, memxor@gmail.com,
akpm@linux-foundation.org, david@kernel.org, rppt@kernel.org,
arighi@nvidia.com, emil@etsalapatis.com,
linux-arm-kernel@lists.infradead.org, bpf@vger.kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH bpf-next] arm64: mm: Remove misleading pte_none() comment from ptep_try_set()
Date: Sun, 14 Jun 2026 11:02:09 -1000 [thread overview]
Message-ID: <20260614210209.2371030-1-tj@kernel.org> (raw)
This comment was thoughtlessly copied from the x86 version and doesn't
apply to arm64. Remove it.
Reported-by: Will Deacon <will@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
arch/arm64/include/asm/pgtable.h | 4 ----
1 file changed, 4 deletions(-)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 3ce0f2a6cab6..b0213799ebc4 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -1830,10 +1830,6 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
return __ptep_get_and_clear(mm, addr, ptep);
}
-/*
- * Note: strictly-zero compare is narrower than pte_none(), but the gap is
- * harmless: a fresh kernel PTE has no software bits set.
- */
static inline bool ptep_try_set(pte_t *ptep, pte_t new_pte)
{
pteval_t old = 0;
--
2.51.0
next reply other threads:[~2026-06-14 21:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-14 21:02 Tejun Heo [this message]
2026-06-14 23:30 ` [PATCH bpf-next] arm64: mm: Remove misleading pte_none() comment from ptep_try_set() patchwork-bot+netdevbpf
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