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 20EF73AFB18; Tue, 18 Aug 2026 04:01:00 +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=1787025662; cv=none; b=eUks/wVWECgCt/nk9rE24/YDlBTrYfxK5WwymiI+Y+j16xRK2UgvER4ku0kbGrOsgS147SGaG7RIp8a2fzoszIEd3ShcLZ4JhfRutj2dAi4kpbSR6Dn7X3zT8YmWTMqlhkDUXucckDMyibYcKzuABsJQdWzAkPpe61e9VHCMa9I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787025662; c=relaxed/simple; bh=jNvZ3ph4tfzqvfYMPDWyq7xHUxNcpHCKh93HJ34Xlag=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CfMWdoQzT2ZUU6XCPgGE+YDIDNs19joWDLtqae0Xr/VKV9rmvUxXz0GfgHRKj0ajn1A5AqnIRQ2s9aJRiNN/Qr5QQq5RWRuaZhbXoVnj+NcbvHUX0hTgCxzilES929imFK7LPZcwFneAp6ZdJdrTQreWiy69J4Zb6CKJ1ZgMia8= 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=utTgpugZ; 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="utTgpugZ" 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 552C0176C; Mon, 17 Aug 2026 21:00:56 -0700 (PDT) Received: from localhost (a085714.arm.com [10.164.19.28]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 439313F66F; Mon, 17 Aug 2026 21:00:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1787025660; bh=jNvZ3ph4tfzqvfYMPDWyq7xHUxNcpHCKh93HJ34Xlag=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=utTgpugZygTuDjhpwxzKPuJMIDZz0EKonCrgJRpvQKS6INxHgHOfXIDFV+nOSQ7jF 7Bgl85I45aBhnw6MHWp+5DDIFHvHyFt07H8kgzKVC+zsqZqfrwYRzS13GPJp69yMK5 AJqMStMFmVH1+FyJHrLz9sBA+2QOVy632/sBTjjU= From: Anshuman Khandual To: linux-mm@kvack.org, akpm@linux-foundation.org, david@kernel.org Cc: Anshuman Khandual , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "James E.J. Bottomley" , Helge Deller , Huacai Chen , WANG Xuerui , linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC V3 4/8] parisc/mm: Directly use generic [pmd|pgd]_clear_bad() Date: Tue, 18 Aug 2026 09:30:37 +0530 Message-ID: <20260818040041.1891769-5-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260818040041.1891769-1-anshuman.khandual@arm.com> References: <20260818040041.1891769-1-anshuman.khandual@arm.com> Precedence: bulk X-Mailing-List: linux-sh@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Drop [pmd|pgd]_ERROR() followed by [pmd|pgd]_clear() instances. But instead directly use semantically equivalent generic helpers [pmd|pgd]_clear_bad() in unmap_uncached_[pte|pmd]() which helps in dropping their corresponding [pmd|pgd]_ERROR() macros across the tree. Cc: James E.J. Bottomley Cc: Helge Deller Cc: linux-parisc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: David Hildenbrand (Arm) Signed-off-by: Anshuman Khandual --- arch/parisc/kernel/pci-dma.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c index bf9f192c826e..84e7309a8266 100644 --- a/arch/parisc/kernel/pci-dma.c +++ b/arch/parisc/kernel/pci-dma.c @@ -160,8 +160,7 @@ static inline void unmap_uncached_pte(pmd_t * pmd, unsigned long vaddr, if (pmd_none(*pmd)) return; if (pmd_bad(*pmd)) { - pmd_ERROR(*pmd); - pmd_clear(pmd); + pmd_clear_bad(pmd); return; } pte = pte_offset_kernel(pmd, vaddr); @@ -196,8 +195,7 @@ static inline void unmap_uncached_pmd(pgd_t * dir, unsigned long vaddr, if (pgd_none(*dir)) return; if (pgd_bad(*dir)) { - pgd_ERROR(*dir); - pgd_clear(dir); + pgd_clear_bad(dir); return; } pmd = pmd_offset(pud_offset(p4d_offset(dir, vaddr), vaddr), vaddr); -- 2.43.0