From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A7B5F483BEE; Mon, 21 Sep 2026 10:56:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789988221; cv=none; b=hrfNj0dpw8J2Hv5a06Eww9tsSbVpElEJRcHisBfS/YmEq/NSUzS7LuOdf/Vb9cckXzlosOCIP8jS46AHLWBwbFwwA3qCzJdbtsSauONyx10AtAmKA2Hn07e9abXdJ8X/Rxai6v59nVosTQ78cE2itnatXznMTnXzIb/HFbr4JUY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789988221; c=relaxed/simple; bh=rnI7y0Fpi9EpSaKs0zPg/sympiblJU7quGD2p5tv2as=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=FlgCwt8iSexa8aqQwUF7tHkKY1zOw36F44uNthooDfnraIV3Bks4wuQnm14Pmy/h7C3XxFO6i1vJho+R5JCHakGSBzkmPGxEahGEF/vGDE1JqNEY0Rce6FGAYwvubWn5BoCVQOppc+IjzApPTVnTfsIcZ7iB7IFnx3IpbmWq1/k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=Erxu0w3k; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="Erxu0w3k" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7B0B41CE0; Mon, 21 Sep 2026 03:56:55 -0700 (PDT) Received: from e129823.arm.com (e129823.arm.com [10.2.213.3]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DA2C53F86C; Mon, 21 Sep 2026 03:56:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1789988219; bh=rnI7y0Fpi9EpSaKs0zPg/sympiblJU7quGD2p5tv2as=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Erxu0w3k0j6ub5hHfj+RN6pEhjSNKHkKz8ooYKskXllnoLVwJ8Ut4DZ7NeEJ5/rDP SPY3vbUR4axOfHnsqT+sZBjZVHL/E9nsVWbpsXIhcl8s27YOeWUOZEH7qpSiFxdsmr myTCIU+NKUGM4uM3qVejSjvoXD/mXvabuVl3WG3g= From: Yeoreum Yun Date: Mon, 21 Sep 2026 11:55:26 +0100 Subject: [PATCH 04/21] LoongArch: mm: define pud_leaf() only when PUD exists Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260921-dummy_ptxp3-v1-4-cd40cf68242e@arm.com> References: <20260921-dummy_ptxp3-v1-0-cd40cf68242e@arm.com> In-Reply-To: <20260921-dummy_ptxp3-v1-0-cd40cf68242e@arm.com> To: Russell King , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Catalin Marinas , Will Deacon , Arnd Bergmann , Andrew Morton , Kairui Song , Qi Zheng , Shakeel Butt , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Johannes Weiner , David Hildenbrand , Michal Hocko , Lorenzo Stoakes , Tianrui Zhao , Bibo Mao , Anup Patel , Atish Patra , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jonas Bonn , Stefan Kristiansson , Stafford Horne Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-openrisc@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=993; i=yeoreum.yun@arm.com; h=from:subject:message-id; bh=uHP3fCujvTA7teOGPJseRh4165tfxVj1UjkqwzmtCWQ=; b=owEB7QES/pANAwAKAW3Vw9FaxTEzAcsmYgBqsQ1MsnYSzGCrfSvMhPR2nenqzfaOWd2TWY08B FS8dv7UCUWJAbMEAAEKAB0WIQQtg+CS3QUzuFh1pJ1t1cPRWsUxMwUCarENTAAKCRBt1cPRWsUx MwVVDADY86GBwYvZ/9NRAVbtoFfHEGdfPzdSbaqYPaX2rteHd+ssXS7FQyNXF7l/1y5jgMN6f8T u7ZaYgOKw41FfG1EJ8ZIDiu9bHuqzDTTvuRML+XcjRwJXrhPRAztnbXo/OZ1RTqo729jpcB5Xl9 9PS3DceEj++x8zDzmyN8uxazCUfLRsT6GzwULKx9ysQ+5jUUhYPliUTuPjjCAry4VEjHRk2u0Ed vQh9FTH94HI/jFBfC4SZtHDWf6T1x5Mb0/CSBtnqPk4Pme3fbJMuU2FsPfmyKx2KBuYHJkBfRDZ 2znp1ATgR9+XFXRZo4l/N1jmwBMxYXnA63Q4aLVjuDFyHKRaqnvXBv39ZW6q6spPgH9F7MIAiZ8 X6kHCzMocHrCdxMnZwrD4R9ifssomtcBwjrY1xxB7PCNiew50qsZ9SlhqunzUmYP5D4KRNdR9Eu yEbDNwJYCgqoM0+XH0D/u8DleX7OGnVzPCTqimSGz40CcsWXg4oKF9+WTv4QSQoYAQubY= X-Developer-Key: i=yeoreum.yun@arm.com; a=openpgp; fpr=2D83E092DD0533B85875A49D6DD5C3D15AC53133 From: "David Hildenbrand (Arm)" In include/asm-generic/pgtable-nopmd.h, pud_leaf() is hardcoded to return false as inline function, but it misses the "define pud_leaf pud_leaf" part. To prepare for fixing that, define pud_leaf() only when __PAGETABLE_PMD_FOLDED isn't defined. Signed-off-by: David Hildenbrand (Arm) --- arch/loongarch/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h index cf29a4c8ac593..8aee4fc27a26e 100644 --- a/arch/loongarch/include/asm/pgtable.h +++ b/arch/loongarch/include/asm/pgtable.h @@ -630,7 +630,9 @@ static inline long pmd_protnone(pmd_t pmd) #endif /* CONFIG_ARCH_HAS_PTE_PROTNONE */ #define pmd_leaf(pmd) ((pmd_val(pmd) & _PAGE_HUGE) != 0) +#ifndef __PAGETABLE_PMD_FOLDED #define pud_leaf(pud) ((pud_val(pud) & _PAGE_HUGE) != 0) +#endif /* * We provide our own get_unmapped area to cope with the virtual aliasing -- 2.43.0