From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 471CE32ED22 for ; Tue, 4 Nov 2025 14:31:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762266699; cv=none; b=lBlUdUaT9Ud3aY2d3KRCIJTfcclg7W6Mc3Yyyj/c6EBOWL43vUKNq7bh4NbyyxfhN4gVGgifWC5k5rlM9hEtM35sbxr7nrz/2tTyPSFMRUBOdaQt8gt+f/ieQrIQiO/HSFUGtYJHi1+FYSVDZ+U4Gk2CA8tcpxRbjhnygjCine4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762266699; c=relaxed/simple; bh=0SPlbyjso/mwT4FGB3u+5KyJ2qpQpBf099rWRXcddn8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TSb1OEK3Pq3zcLwRkmTcZMZj/zgrQR4wcgz+0bpfstr/txJEmCLlx5k6nJv5pN9u/M/tgqr/lJiGlxwYI18HRpcggo/VX/FKUuwK9DYTga22oyqT091L5k9vv3T42Ce3l/fEsBt3RbRNu2Dl/prKlCoKH7stbHm20gT/PyzPSn4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=F8Xh3gnV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="F8Xh3gnV" 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> 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=us-ascii Content-Disposition: inline In-Reply-To: <20251014110633.304961-1-anshuman.khandual@arm.com> 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