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=-10.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT 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 2FD6BC04EB8 for ; Thu, 6 Dec 2018 15:49:36 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 00FAF214E0 for ; Thu, 6 Dec 2018 15:49:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="GqIgbkxF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 00FAF214E0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=SqhLEn38JKJ0jPzTbGOmHypkFhvpG3IHCYFZdFL5mAE=; b=GqIgbkxFhHGVUF Eeb7/PpYNKgOUXdOaDjyWg0p6eiLOBDZ4xBYuVahdFfmZzrHObCmMkj/UQGiwmh2q/oL7XyZ/WgCW tidp9hY3SZxdNlkeajPXyrbSr6CWMvGkJY0PrX080JWvwtrXlLXgq/pvb6UmT8mEtRaSvSdKbWeti oRNSF8bhF6brq+NgNsZjM5P138xWe8H6guKqYNt4FobBo5OjadifN1I8ifTgh92iz1aapodfOB1CI mcu6jEGs5ZgSp4nQf+JCAP6uABdkRfqXsmB5ux+QcgaFZIdIftBB397KCZ7hH9AsoBfEp26Jjeddz pS+k66yQVaWq+W0/7lkw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gUvu6-0005KJ-C2; Thu, 06 Dec 2018 15:49:30 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gUvty-0005CF-D6 for linux-arm-kernel@lists.infradead.org; Thu, 06 Dec 2018 15:49:25 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 67B3580D; Thu, 6 Dec 2018 07:49:11 -0800 (PST) Received: from edgewater-inn.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 3692D3F59C; Thu, 6 Dec 2018 07:49:11 -0800 (PST) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id 4B68A1AE0BD1; Thu, 6 Dec 2018 15:49:32 +0000 (GMT) Date: Thu, 6 Dec 2018 15:49:32 +0000 From: Will Deacon To: Steven Rostedt Subject: Re: [for-next][PATCH 05/30] arm64: function_graph: Remove use of FTRACE_NOTRACE_DEPTH Message-ID: <20181206154931.GA4327@arm.com> References: <20181205234749.372720574@goodmis.org> <20181205234829.164618323@goodmis.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20181205234829.164618323@goodmis.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181206_074922_445965_71D043E4 X-CRM114-Status: GOOD ( 16.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tom Zanussi , Catalin Marinas , linux-kernel@vger.kernel.org, Ravi Bangoria , Masami Hiramatsu , "Joel Fernandes \(Google\)" , Namhyung Kim , Andrew Morton , Ingo Molnar , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Dec 05, 2018 at 06:47:54PM -0500, Steven Rostedt wrote: > From: "Steven Rostedt (VMware)" > > Functions in the set_graph_notrace no longer subtract FTRACE_NOTRACE_DEPTH > from curr_ret_stack, as that is now implemented via the trace_recursion > flags. Access to curr_ret_stack no longer needs to worry about checking for > this. curr_ret_stack is still initialized to -1, when there's not a shadow > stack allocated. > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: linux-arm-kernel@lists.infradead.org > Reviewed-by: Joel Fernandes (Google) > Signed-off-by: Steven Rostedt (VMware) > --- > arch/arm64/kernel/stacktrace.c | 3 --- > 1 file changed, 3 deletions(-) > > diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c > index 4989f7ea1e59..7723dadf25be 100644 > --- a/arch/arm64/kernel/stacktrace.c > +++ b/arch/arm64/kernel/stacktrace.c > @@ -61,9 +61,6 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame) > (frame->pc == (unsigned long)return_to_handler)) { > if (WARN_ON_ONCE(frame->graph == -1)) > return -EINVAL; > - if (frame->graph < -1) > - frame->graph += FTRACE_NOTRACE_DEPTH; > - Acked-by: Will Deacon Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel