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 3109DC0015E for ; Thu, 27 Jul 2023 17:57:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=qSdO7PBGMUbkSe6Eog/6FrcFEEM1CG6nhIh9NJCSjEE=; b=4Eg4DoukTU94F7 JLvhoo0Vd380qkxFNTDDRm2oHLryQtHPCnj4XoHXJ/GM/Zc1QdOlYY5Be0kvtXFEPIjtVurUxE6wX xQb4h8b3L51+HSmEQKyZeedssAGDqD6TgA5U8bHa3Mt+59LTpm7hdknkrwOz7i6hYz083V9b2vOsZ Yl1Vy1tj6Jp+89Mnn+OVH45mq/82AoKDC44OiQlqJQqCgG5uq4lwUqquoSwyixnHdrcXJ7/CBWvA3 xkLsaT6Twa9aS8l8SbSmSukT7tloEOQpPqPNxwDtC5zAb8+Nwzn1poKvi+lyld4xrs6F6tDElY4hQ bCIv+SbeWrzc0wWy+7yQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qP5Ei-0000gw-1U; Thu, 27 Jul 2023 17:57:17 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qP5EW-0000QO-2X for linux-arm-kernel@bombadil.infradead.org; Thu, 27 Jul 2023 17:57:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Type:MIME-Version:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:In-Reply-To:References; bh=D7jV0yOmoEPou6Tu2BIxROsJ30votZZ2fZoMANMcjy0=; b=PdH9VnQyQvScdjCmwbfO9nNbZ3 YwEXVV44ZnwETu3nRK04JtrmAr9Q0lIzYPblAsb2jj+GcP5uT2AerMVgANB+B0TCvRBY2OVEHeX1d gt7CyuJx1BK3If4MAixfpzU3+o4Dbqxxj2mZd1VsY9CBzPyXmwO2HUxyfUjcXiLrRKgS7/9m1uoWf 7C2bGFZG9PsJ8K+9WWK1ngpadGrw2UmJryXh96/lzxWUvzORZ+VFMIBgHcjJCl+NCLbGBg/fCh/C0 Fx5ftGvlUkCNFtwvn2cZK6oSUyzOECLXA3ker3el/10FdfYizoKz7Lv9PLb04lmJCuLmfCJnrN64o VdGrH0tA==; Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qP3xY-007ASu-0H for linux-arm-kernel@lists.infradead.org; Thu, 27 Jul 2023 16:35:29 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B8C3761DFA; Thu, 27 Jul 2023 16:35:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3A9B3C433C8; Thu, 27 Jul 2023 16:35:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1690475722; bh=D7jV0yOmoEPou6Tu2BIxROsJ30votZZ2fZoMANMcjy0=; h=Date:From:To:Cc:Subject:From; b=Xu5m+fCHpkj3DGn9Ri7sziq/wqaQXzfMnSsDaeJZ50Af03f9Zagy8J41cVJZ8sEED I2Z0vW6EB682nbArJpVTy6fJEUEdGt7SIn3pXzmBRXKUaOa8JqsS6TLAcGQF7izGR6 KwadKFClJkAEz/Um9TslDK0vXra9cwzdSEGnevje70Flf5siH6mBDfOWuK1xcb9y2c lcF6L6tr9EhcTzbvX8kQxX4060ReVtmyRjhc+kpscoxdsJhWwh2QcPBq8c7fhMt+Gn rnARiIHAbBx554eHZL0iKvisRouFO9r6U5BX71R7viJgTs49d/ScfSVuHFHb9HjOjs bX53nrPjN0xMA== Date: Fri, 28 Jul 2023 00:23:46 +0800 From: Jisheng Zhang To: linux-arm-kernel@lists.infradead.org Cc: Mark Rutland Subject: [RFC] arm64: select FUNCTION_ALIGNMENT_16B Message-ID: MIME-Version: 1.0 Content-Disposition: inline X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230727_173528_342870_E0821E87 X-CRM114-Status: UNSURE ( 5.22 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Before arm64 explicitly selects FUNCTION_ALIGNMENT_4B or FUNCTION_ALIGNMENT_8B if DYNAMIC_FTRACE_WITH_CALL_OPS, the compiler's default function alignment is used. IIUC, gcc for aarch64 default alignment is 16B when -O2, so to keep the same effect, do we need to select FUNCTION_ALIGNMENT_16B instead? Thanks _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel