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h=From:To:Cc:Subject:Date; b=DnL97brAJwWsRnbft2pAvI6LhC44L+A+or5qP9u5r5vret8j3fO/knh/Payo1LFUi ciEFh4xbJHSSzl+SrYmvlwaF0hCP2j5rNZJc3wTNMaMWbCVwM1P2f6K0fEvp3y6Wk+ qjNgktpemBXnmDOcOkEZd0qmq9x31Ammny8roA1Hg35bAMO7hEm17lGbIOAHUTNruE X3wAhWdTRMRwToz7jU0zLKAYr/TY4xHB0M93FKFg6FiGwwqmUi9DJgF61LsWm0SXeM K8Qa0dRUWC+zyEvRL/jibWjjFgvrEVQ5db03zFnV/ltJfv3j9FXFG7TtT1tI8eFszF +n7kxmpgPpj4w== From: Tejun Heo 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 Message-ID: <20260614210209.2371030-1-tj@kernel.org> X-Mailer: git-send-email 2.54.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: EC1E5140003 X-Stat-Signature: 3uyswpsgqjwy144mgd3trywacqkrc3oq X-Rspamd-Server: rspam03 X-Rspam-User: X-HE-Tag: 1781470931-70311 X-HE-Meta: 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 +lDOzD67 WzdXfUd/yT3nVyGIY1HU52RNGbOmMgEpYhjn5Dq5gGNAtKBIIL+EaOLyxpBB27Goi/gO06ozugABbCTrGnRdE7CA7zStVJ65qA+ifXqsdMHc/zVySp5sHq+o3a1EpxXsuRQSqbCUXF5SHA4kMXPR6KvWWfspgbj4Qd0EUZa5JdVThdLL6m6Q4yydH0GDfy9aKrzlSBBfYyamSqteVre/cK8cXLc6nU72YX983y9t9BKAqSNvVqnT6if76fPxsLhL+iZX5Yqa0ZfJkwvZOMd25GHLQTnLVMqUZ8PMX Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: This comment was thoughtlessly copied from the x86 version and doesn't apply to arm64. Remove it. Reported-by: Will Deacon Signed-off-by: Tejun Heo --- 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