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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 E8BBEC3A59F for ; Sun, 18 Aug 2019 20:11:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BCF902184D for ; Sun, 18 Aug 2019 20:11:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="by89bBij" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727126AbfHRULy (ORCPT ); Sun, 18 Aug 2019 16:11:54 -0400 Received: from mail-pl1-f195.google.com ([209.85.214.195]:44800 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726926AbfHRULx (ORCPT ); Sun, 18 Aug 2019 16:11:53 -0400 Received: by mail-pl1-f195.google.com with SMTP id t14so4734787plr.11; Sun, 18 Aug 2019 13:11:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=jK4nxwdgBuyoD1ZnaAuxfcxRj0U0B/VNxYmenqTfaAY=; b=by89bBijWdxceRG2lqxJcbcn6ff10EqqqqKKnaLaq9SL4A3+Z6q5D25qGSzHKdyN3A ExzMi0SMG9ZkFfD+Th9MP3Fs5dEGGJ9lNU86bs9fawK9H09tLiFSP0PSRUTJX4o9G8D1 oj023eB+rj9UCrtSdzBCKsHaVTwo4W3+pPQtHQ5ckxjMPZEqJXm98Mr4cd/G0JgZbeGM 53Xr5UYKlvzUVwG1aVja759KAKEQQPcfi287UfU4rRyVWzieTo6jC/LOP2LOXw2Acuma 0WyReRc8exu3Ko7qdlTrNYqdM3CR04YX3OF4q/WT6uGguFmKT+sCUaLhMzkUHX+NsEMW QWow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=jK4nxwdgBuyoD1ZnaAuxfcxRj0U0B/VNxYmenqTfaAY=; b=AuSmthIKmWcNpk4TjRfSKA19NHOm1lEC2fjIr+LNqY12BKn9OwnK8qzcc5IgrwZZsk UrtAROgtNQu7yq2Mycp2REwF4KwzAerhsgue1aijB6KMRbiAix15sYdmfSovV91d5//O e5jbvufN3lLflP1JxEM8RdZh1eRYdnGopqWs/n1iNBt+QtW7eZayc9lYlXqrIfYIJT/T QlRC6M1G2JhkHBRynVCOOnAFoNCn8w54SlipNn0kLZWSKAsM7yxJ7uSY8BLPaDYWSjXM vJBWA+V1+JpGGP4g/kLvlJqPcxaIqU7h7PnZtjzJ+z7fu9SXSlMIY2/chfQL+oKwlpYV rRSQ== X-Gm-Message-State: APjAAAV8bVj2GMYGnhoLtvzjcidfS4PLwqKHNW2maJpKrx+yQ/3ETdDv weW2zWNYfDbInrNdQCmzVPo+ciP3 X-Google-Smtp-Source: APXvYqzdsGCudhJ6cr8UVvcFNPZGEVQ3JalHpugLehZgImc71Bw7PqTyNi8RW0BkMSP3OesKwf7B7w== X-Received: by 2002:a17:902:20e5:: with SMTP id v34mr19293586plg.136.1566159113082; Sun, 18 Aug 2019 13:11:53 -0700 (PDT) Received: from localhost (c-73-222-71-142.hsd1.ca.comcast.net. [73.222.71.142]) by smtp.gmail.com with ESMTPSA id c35sm12073966pgl.72.2019.08.18.13.11.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Aug 2019 13:11:52 -0700 (PDT) Date: Sun, 18 Aug 2019 13:11:50 -0700 From: Richard Cochran To: Joe Perches Cc: Felipe Balbi , Christopher S Hall , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] PTP: introduce new versions of IOCTLs Message-ID: <20190818201150.GA1316@localhost> References: <20190814074712.10684-1-felipe.balbi@linux.intel.com> <20190817155927.GA1540@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Sat, Aug 17, 2019 at 09:17:20AM -0700, Joe Perches wrote: > Is there a case where this initialization is > unnecessary such that it impacts performance > given the use in ptp_ioctl? None of these ioctls are sensitive WRT performance. They are all setup or configuration, or in the case of the OFFSET ioctls, the tiny extra delay before the actual measurement will not affect the result. Thanks, Richard