From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759362Ab3BWXVF (ORCPT ); Sat, 23 Feb 2013 18:21:05 -0500 Received: from mga02.intel.com ([134.134.136.20]:44452 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758862Ab3BWXVD (ORCPT ); Sat, 23 Feb 2013 18:21:03 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,724,1355126400"; d="p7s'?scan'208";a="266735406" From: "Woodhouse, David" To: Kim Phillips CC: Nicolas Pitre , Russell King - ARM Linux , Borislav Petkov , Andrew Morton , Daniel Santos , David Rientjes , Rusty Russell , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Rob Herring Subject: Re: [PATCH v6] arm: use built-in byte swap function Thread-Topic: [PATCH v6] arm: use built-in byte swap function Thread-Index: AQHOEWdLfULdTO0vKkaOHpwyqcQzU5iIFgsA Date: Sat, 23 Feb 2013 23:20:56 +0000 Message-ID: <1361661654.18110.102.camel@shinybook.infradead.org> References: <20130129181046.GC25415@pd.tnic> <1360363233.6066.283.camel@shinybook.infradead.org> <20130208191208.2ef3d78bda71aa7b44d00d7b@freescale.com> <20130219203115.114eab79e8d2099c6306d921@freescale.com> <1361356696.13482.269.camel@i7.infradead.org> <1361367842.13482.279.camel@i7.infradead.org> <1361372008.13482.280.camel@i7.infradead.org> <20130220214943.9b28a5b208da9f081387c55e@freescale.com> <20130221005221.15279b1372501af12c1e4f32@freescale.com> <20130221203327.6558f89277468f7ffffa6506@freescale.com> <20130222194032.f7b44aefa5e2723d16767a1b@freescale.com> In-Reply-To: <20130222194032.f7b44aefa5e2723d16767a1b@freescale.com> Accept-Language: en-GB, en-US Content-Language: en-GB X-MS-Has-Attach: yes X-MS-TNEF-Correlator: Content-Type: multipart/signed; micalg=sha1; protocol="application/x-pkcs7-signature"; boundary="=-TVay+cS+KdhVlN8W4Fhy" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-TVay+cS+KdhVlN8W4Fhy Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2013-02-22 at 19:40 -0600, Kim Phillips wrote: > Enable the compiler intrinsic for byte swapping on arch ARM. This > allows the compiler to detect and be able to optimize out byte > swappings, and has a tiny benefit on vmlinux size (Linaro gcc 4.7.3): >=20 > text data bss dec hex filename > 2754100 121144 56520 2931764 2cbc34 vmlinux-lart #orig > 2754050 121144 56520 2931714 2cbc02 vmlinux-lart #builtin-bswap > 6282699 307852 5578076 12168627 b9adb3 vmlinux-mxs #orig > 6282241 307832 5578076 12168149 b9abd5 vmlinux-mxs #builtin-bswap > 7200193 364180 361748 7926121 78f169 vmlinux-imx_v6_v7 #orig > 7199515 364188 361748 7925451 78eecb vmlinux-imx_v6_v7 #builtin-bswap >=20 > Signed-off-by: Kim Phillips Looks good, thanks. Acked-by: David Woodhouse --=20 Sent with MeeGo's ActiveSync support. 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