From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CE7BDCCFA04 for ; Tue, 4 Nov 2025 14:31:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0SPlbyjso/mwT4FGB3u+5KyJ2qpQpBf099rWRXcddn8=; b=NyjjiMya/XySueRsnUBHT2DdX9 gIzv/MlnWr+Dw+s4T2/Li/9dc/YKY2T6dCnwUMD2QBrqwV+1quMS2RJELbdl+A4zXlPHi4OBqBZei dtaa5sH2km60Ppx3uGt73j0/FnuqqwLzvkN9nqAuTf6qp9zfZ8FC/uWx3VBPU9UK6QJn6KoO4ToIS Fnkst6d0CxctUcFPsjMqWVJqHPH4NGEEFYsH+IpdKkJo1m1cutFPcZtJ8o5swtfm87cNmdaFH6JGX 5mU7s2p5JOBalSMbz9l+MX1xMLdMkE4piNuUvtUP4ZJ4AoftrcVCz7/g+9NKNT07M002M/G4mSBK5 FnoCh/Tw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vGI4T-0000000Bywv-1aZi; Tue, 04 Nov 2025 14:31:41 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vGI4R-0000000BywU-1fmk for linux-arm-kernel@lists.infradead.org; Tue, 04 Nov 2025 14:31:40 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id BAF0940249; Tue, 4 Nov 2025 14:31:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75C8DC4CEF7; Tue, 4 Nov 2025 14:31:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762266698; bh=0SPlbyjso/mwT4FGB3u+5KyJ2qpQpBf099rWRXcddn8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=F8Xh3gnVJPcqdE64pMFhkUD14Yva2zvXN6u37/PaTVEubw2ni57Y4j/nT2Jjqj3Cd xudVFbbUMaH6G8Hd5gaGRNhVeOLqbvDc5hUOFJg5Y7+lUFf78PY9+Ul3gYQbW5DOnd K5HA4v5YnscM3xEYmcZITR6pWLXf7HJ5nJTd6/zdm9VxfH8bV/KK3ikm9J/pcNBtyX NrThHcbZrdl7lkRDtf3d5izGQGQlVB+8nWWqVrZ+MWBZDt/tD1XI0IsAzFu6owXe57 Ffzw4zS0+dBomhcEusJt802pS5ljd6ekZBy5O8TEraht9Z2O5HI19sEFIps7IAK+an jtSHf2vRQ/3cw== Date: Tue, 4 Nov 2025 14:31:34 +0000 From: Will Deacon To: Anshuman Khandual Cc: linux-arm-kernel@lists.infradead.org, ryan.roberts@arm.com, Catalin Marinas , linux-kernel@vger.kernel.org Subject: Re: [PATCH] arm64/mm: Add a fallback stub for pgd_page_paddr() Message-ID: References: <20251014110633.304961-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251014110633.304961-1-anshuman.khandual@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251104_063139_456988_FC7F1E04 X-CRM114-Status: UNSURE ( 8.77 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Oct 14, 2025 at 12:06:33PM +0100, Anshuman Khandual wrote: > Add a fallback stub for pgd_page_paddr() when (PGTBALE_LEVELS <= 4) which typo > helps in intercepting any unintended usage and which is also in line with > existing stubs for similar [pud|p4d]_page_paddr() helpers. Are you saying the kernel compiles in this case without your patch? Which definition of pgd_page_paddr() does it end up using? Will