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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 1F021C388F7 for ; Tue, 10 Nov 2020 09:20:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BC1782080A for ; Tue, 10 Nov 2020 09:20:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="O4UqSnhc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726721AbgKJJUV (ORCPT ); Tue, 10 Nov 2020 04:20:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40578 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730774AbgKJJUQ (ORCPT ); Tue, 10 Nov 2020 04:20:16 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 22561C0613CF for ; Tue, 10 Nov 2020 01:20:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=vZFMNhjhPWjL/0GaxK9LIuP9627bSGwtvL7soQpbxTU=; b=O4UqSnhc6h0rScQ4vXsf7s7tF9 1jqumvWJhlzcM/qG7GlQ/ETLT9ZJmaXeItCalkdL61C6nbAWkfekWAScL8lKZdbUHW5Di0tkKZtKm DA0uW+W5vZwXsfHASKMnytmix0VR8sYtKkUSPsSWxvyvutWIuyATi+3UUZlCnW0qRl9cesI5B5JgF E7Ei4XHfB+/F7tNbE9Ohsw1d5OLCDd2Q7oB+uv2heNQQN4rep3aIMrqeGvlPyJ1YbJwqTQNcCrbIX wPO0qziHi0Ya6TjOOy+jPKC99WiKkoB5ZsIb3YHANLMMjOZT5y2FsYB93s/0XiBvsFjCzqM30Gwev Vn6IG0dw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kcPoq-0001cm-O4; Tue, 10 Nov 2020 09:20:07 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 3B72D300238; Tue, 10 Nov 2020 10:20:04 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id E5DBB2C09A80F; Tue, 10 Nov 2020 10:20:03 +0100 (CET) Date: Tue, 10 Nov 2020 10:20:03 +0100 From: Peter Zijlstra To: Steven Rostedt Cc: linux-kernel@vger.kernel.org, Ingo Molnar , Andrew Morton , Miroslav Benes , Thomas Gleixner , Masami Hiramatsu Subject: Re: [PATCH 2/3 v4] ftrace/x86: Allow for arguments to be passed in to ftrace_regs by default Message-ID: <20201110092003.GX2594@hirez.programming.kicks-ass.net> References: <20201106214234.618790276@goodmis.org> <20201106214403.328699055@goodmis.org> <20201109111043.GD2594@hirez.programming.kicks-ass.net> <20201109181610.1b3f7d9f@oasis.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201109181610.1b3f7d9f@oasis.local.home> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 09, 2020 at 06:16:10PM -0500, Steven Rostedt wrote: > ftrace_caller: > [..] > movq $0, CS(%rsp) <- loads zero into pt_regs->cs for internal use only. > [..] Argh, I missed that. I failed to spot it in the patch. No worries then.