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=-14.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 F2A05C2D0DB for ; Wed, 22 Jan 2020 09:33:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C81F924686 for ; Wed, 22 Jan 2020 09:33:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579685593; bh=sj6N5pE2/82h7vfPvxKma1ckeCsu0WweTBH31NIC6AI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hgzOG3mSIwOVgswP173pvCvVwr2poJpokFLyZleJYoO2bGY5zOL3lH7gCf/IA0QbW xmgSMjVtRxc9qYbtPIIImi2bbvsoVligBg7mo9Dt5cebruAAhV5BeNxRCb1BuZIQiu oi8eE3MrUik/gpVDc+5+AkdlmkwZ3Yfx4lKZQMGI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730398AbgAVJdN (ORCPT ); Wed, 22 Jan 2020 04:33:13 -0500 Received: from mail.kernel.org ([198.145.29.99]:46664 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730377AbgAVJdK (ORCPT ); Wed, 22 Jan 2020 04:33:10 -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 E7EE524673; Wed, 22 Jan 2020 09:33:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579685589; bh=sj6N5pE2/82h7vfPvxKma1ckeCsu0WweTBH31NIC6AI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Wzi0C/WMJAzCQ2+0U7cZmU7NJMvSsVxv4cY+p5nT3yb96S8NpSW1OJyaObOUo0Xsc bjAclS+EbE17FOsHW4ArRH68gTbyi0J+la/SeYTfYTYrZbRO8URwfTm370X64ByZxO SV3a5m4u6fQ94E5v3ODeg2t+hxZt+WsSVMmHOg7s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Nick Desaulniers , Sid Manning , Brian Cain , Allison Randal , Richard Fontana , Thomas Gleixner , Andrew Morton , Linus Torvalds , Sasha Levin Subject: [PATCH 4.4 38/76] hexagon: work around compiler crash Date: Wed, 22 Jan 2020 10:28:54 +0100 Message-Id: <20200122092756.130497147@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200122092751.587775548@linuxfoundation.org> References: <20200122092751.587775548@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nick Desaulniers [ Upstream commit 63e80314ab7cf4783526d2e44ee57a90514911c9 ] Clang cannot translate the string "r30" into a valid register yet. Link: https://github.com/ClangBuiltLinux/linux/issues/755 Link: http://lkml.kernel.org/r/20191028155722.23419-1-ndesaulniers@google.com Signed-off-by: Nick Desaulniers Suggested-by: Sid Manning Reviewed-by: Brian Cain Cc: Allison Randal Cc: Greg Kroah-Hartman Cc: Richard Fontana Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- arch/hexagon/kernel/stacktrace.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/hexagon/kernel/stacktrace.c b/arch/hexagon/kernel/stacktrace.c index f94918b449a8..03a0e10ecdcc 100644 --- a/arch/hexagon/kernel/stacktrace.c +++ b/arch/hexagon/kernel/stacktrace.c @@ -23,8 +23,6 @@ #include #include -register unsigned long current_frame_pointer asm("r30"); - struct stackframe { unsigned long fp; unsigned long rets; @@ -42,7 +40,7 @@ void save_stack_trace(struct stack_trace *trace) low = (unsigned long)task_stack_page(current); high = low + THREAD_SIZE; - fp = current_frame_pointer; + fp = (unsigned long)__builtin_frame_address(0); while (fp >= low && fp <= (high - sizeof(*frame))) { frame = (struct stackframe *)fp; -- 2.20.1