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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A819AC432C0 for ; Wed, 27 Nov 2019 20:56:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7AD862154A for ; Wed, 27 Nov 2019 20:56:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574888181; bh=wtjYU+nHjHQOYZA/U7nBjkeTi8Gils3V5XygPliyQmI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=n7YTyzT6keF8wUiWASeXBVlFAC605vPXEF5Y4HTjazL2dl0J205iJe4AZNi3+T6iU YzwwLeRDFi6tNHaeqKq4EH0hV55H/wCIniRHnGLeOWVwtySrFfp/OL+1i6vSC6ckJl 3FuiJbXDzhfVPiGuVPyVHWvEUhaOTblw6GXj9O8M= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730277AbfK0U4T (ORCPT ); Wed, 27 Nov 2019 15:56:19 -0500 Received: from mail.kernel.org ([198.145.29.99]:47060 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729650AbfK0U4P (ORCPT ); Wed, 27 Nov 2019 15:56:15 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5DFDE2084D; Wed, 27 Nov 2019 20:56:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574888174; bh=wtjYU+nHjHQOYZA/U7nBjkeTi8Gils3V5XygPliyQmI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A4Hzr4hVt7pmCSDIFWHlCmYO23nFWaWbWbQULrVdr4ldDH84y3Wsj+d40G7FtqNwG D2hmVIifi+LFj+ZtVxPeSB5ZBLXvb6bM607J6K9qdvW7aYkvhM4qVFq3Bg/GFZG5vQ 3TjSM3ZuUDtoGbScbSmxkJtkGACBejr+QN1iEHQI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Joel Stanley , Michael Ellerman , Sasha Levin Subject: [PATCH 4.19 033/306] powerpc/boot: Disable vector instructions Date: Wed, 27 Nov 2019 21:28:03 +0100 Message-Id: <20191127203117.194632825@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191127203114.766709977@linuxfoundation.org> References: <20191127203114.766709977@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Joel Stanley [ Upstream commit e8e132e6885962582784b6fa16a80d07ea739c0f ] This will avoid auto-vectorisation when building with higher optimisation levels. We don't know if the machine can support VSX and even if it's present it's probably not going to be enabled at this point in boot. These flag were both added prior to GCC 4.6 which is the minimum compiler version supported by upstream, thanks to Segher for the details. Signed-off-by: Joel Stanley Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/boot/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 25e3184f11f78..7d5ddf53750ce 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -32,8 +32,8 @@ else endif BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ - -fno-strict-aliasing -Os -msoft-float -pipe \ - -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \ + -fno-strict-aliasing -Os -msoft-float -mno-altivec -mno-vsx \ + -pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \ -D$(compress-y) ifdef CONFIG_PPC64_BOOT_WRAPPER -- 2.20.1