Received: by 10.192.165.148 with SMTP id m20csp4313766imm; Tue, 8 May 2018 06:36:05 -0700 (PDT) X-Google-Smtp-Source: AB8JxZpkKYynjqvpL5k5zXUiOmr+mjw5T/Yap8RydIsd2JBwnS8qOsdT8MxGDW+6TeU08Mp4RMIW X-Received: by 10.98.102.221 with SMTP id s90mr39763147pfj.123.1525786565785; Tue, 08 May 2018 06:36:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1525786565; cv=none; d=google.com; s=arc-20160816; b=WtH9hxM9HGxsKRlBx1MVlSY9PE/BB1Pp0T4j78mFIsr4b1AWo33bpKn6MZDLzYbX0D 7P/metOj4UxukOowqnUn+ah6X4mqNEkaAjRvh+r5sYJpA1rhLudVjWsB4g3s21gCaCbt cNercRTkpq53BtJgAbP/7gOKRAIh1TtHSQiyLrjpKd/1F1x65ZodmTbEKJnZ605G4JAz 9uTV0QhxYjXUSvJmb3rKcAflqJvWEzWsE39t3uP7RUg27gGSBKZMkHYcjpLh2ewJNwJV avIFgrC4IpA/8o5QN5KvWE8sFmiyOj1YtHgy9F2VMRGmf0q6PpFX43n21WQ9uPeXKWS3 3ZRQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date :arc-authentication-results; bh=pDlCn4+al16OjoY0cZkLp1YHPfsrcxALqPc3U3s61wU=; b=Pnl251ARi0/eTQNVt6Qg+x4OF1V3396XYNblc0ZkNHvUESoNAz/57z/eVe1erHjnV4 8a9CkTOzgrMWxuD52IbOuB7PBJ80W6oVuWOSjFGBl2cJ/J3PY6L8rMMMN1BpDmONzYR/ P+bkCD+ZnNymFmoKHaj7xnY3XMFFSGja0XxxLl3MdaHUHVPN50elL7hMXPQoajyUHrpU e/F79qUQKeXcU6a5N2Mo0DBX9HF3okZiG12we8lnkrZid7T7uMqF638JMOx3QarPNcTN 3F0c5dXpQySL7x2+bXp9UbExaZVZ6qpYMDdSY1V5IRHouwK1H4FQixdzze1q+z2hkcIP fJVg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id r7-v6si24440761plo.486.2018.05.08.06.35.51; Tue, 08 May 2018 06:36:05 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932209AbeEHNfD (ORCPT + 99 others); Tue, 8 May 2018 09:35:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:57994 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932145AbeEHNfC (ORCPT ); Tue, 8 May 2018 09:35:02 -0400 Received: from gandalf.local.home (cpe-66-24-56-78.stny.res.rr.com [66.24.56.78]) (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 6468621783; Tue, 8 May 2018 13:35:01 +0000 (UTC) Date: Tue, 8 May 2018 09:34:59 -0400 From: Steven Rostedt To: Thomas Tai Cc: Bjorn Helgaas , bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Alexandru Gagniuc Subject: Re: [PATCH] PCI/AER: add pcie TLP header information in the tracepoint Message-ID: <20180508093459.092988b6@gandalf.local.home> In-Reply-To: References: <20180402154708.5032-1-thomas.tai@oracle.com> <20180507222136.GD161390@bhelgaas-glaptop.roam.corp.google.com> <20180508090756.57f38d17@gandalf.local.home> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 8 May 2018 09:25:01 -0400 Thomas Tai wrote: > >>> TP_STRUCT__entry( > >>> __string( dev_name, dev_name ) > >>> __field( u32, status ) > >>> __field( u8, severity ) > >>> + __field( u32, tlp_header_valid) > > > > I'm guessing tlp_header_valid is just a boolean. It's after severity > > which is just one byte long. Why not make this one byte as well, > > otherwise you are wasting 3 bytes. > > Thanks Steven. Yes boolean is fine. But don't use "bool", use u8, as bool can be various sizes on different archs. -- Steve