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Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:33164) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1o8KOV-0008OU-Ol; Mon, 04 Jul 2022 12:37:35 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1o8KOU-0002K0-Dv; Mon, 04 Jul 2022 12:37:34 +0100 Date: Mon, 4 Jul 2022 12:37:34 +0100 From: "Russell King (Oracle)" To: Mike Rapoport Cc: Matthew Wilcox , Andrew Morton , Arnd Bergmann , linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 15/14] arm: Rename PMD_ORDER to PMD_BITS Message-ID: References: <20220703141203.147893-1-rppt@kernel.org> <20220703211441.3981873-1-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1656934663; 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dkim=pass header.d=armlinux.org.uk header.s=pandora-2019 header.b=E1m5OMQ8; spf=none (imf29.hostedemail.com: domain of "linux+linux-mm=kvack.org@armlinux.org.uk" has no SPF policy when checking 78.32.30.218) smtp.mailfrom="linux+linux-mm=kvack.org@armlinux.org.uk"; dmarc=pass (policy=none) header.from=armlinux.org.uk X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1656934663-100638 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000053, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Jul 04, 2022 at 09:26:22AM +0300, Mike Rapoport wrote: > I'd go with PMD_ENTRY_ORDER as Russell suggested last year. > > From 6389dfb2e5ae5b040ca1c8f07a071d8da2873b13 Mon Sep 17 00:00:00 2001 > From: Mike Rapoport > Date: Mon, 4 Jul 2022 09:17:40 +0300 > Subject: [PATCH] ARM: head.S: rename PMD_ORDER to PMD_ENTRY_ORDER > > PMD_ORDER denotes order of magnitude for a PMD entry, i.e PMD entry > size is 2 ^ PMD_ORDER. > > Rename PMD_ORDER to PMD_ENTRY_ORDER to allow a generic definition of > PMD_ORDER as order of a PMD allocation: (PMD_SHIFT - PAGE_SHIFT). > > Signed-off-by: Mike Rapoport Yes, absolutely. Acked-by: Russell King (Oracle) I really don't buy the argument that we should not be using "order" here and we need to make up some other random idiotic term just because Linux uses "order" *elsewhere* for PAGE_SIZE * 2^n. The Linux kernel doesn't get to redefine standard terms, and certainly doesn't get to demand that one has to make up another name for a standard term because it conflicts with some other usage of that term that's non-standard. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!