Received: by 2002:a05:6a11:4021:0:0:0:0 with SMTP id ky33csp927546pxb; Wed, 15 Sep 2021 17:07:54 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyP5XEkLMhZmTkBpAW+k6Tq4X048NLSuzXT2AhLyvixEA801QTckNKtIBEvDfS5AL6w+eSA X-Received: by 2002:a02:2544:: with SMTP id g65mr2129140jag.13.1631750874158; Wed, 15 Sep 2021 17:07:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1631750874; cv=none; d=google.com; s=arc-20160816; b=vBucbXJV/xsBz2g+I27IVl3Qr2fHW/oS/Ue7n8ctaPNPrur5cGhUVRKSMX4uu9pOyZ FCC7MxmIVoJgC7i4ReRZFImgPp/04O8A7sClj3xtvWWzVC/1MG/Dna7oIfVNv6m/c7wq j9CVXu0S9Z4Y1+XIcTjpu6MOJFQYNVQ7dU4OmF6aFKMSvZ17L1eDaM33Ga+xRjgU8plo 93wB+cvZ+nQnUkGzHIDSwPiH2JezGC3XytsB+9Bi3L/Qx4MVFdJyLWjQDVmqohmC9dNh z4tq7SZuCVPCep4CvLYJGeRdKP5492jriZ3iBDuWG208K6c0DiTeFTIG3QCKdQrHTB1o YoUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:organization:references:in-reply-to:date:to:from:subject :message-id; bh=Um/OEfhIN0EMgDPT9LP9vCE6oPKp2ZHjfkFoiknEo4Q=; b=oexyoyHdujdUl3uaEbPAUxEzJ/ZxA879wU+1Sc4AzCvAJQb2Qy1JAbjLKApaDOT99c eGa50zoEUWo5Nbbfa+Ss2NE+6eew54ltoHKpS2Quo2Zz5W6xCr0XYjPBkadCit91Px1I TYJr5Rxg340pkSjZmHxJSz83PMZVDf6OxqHEtgm+fNmfk30I67KyE1K66bujCyutjgZn khEjAxNyBgn55xPUipVMH+fnsvkgz74EbVYQ7rt2HV+uksVqCAx6aAhtJ3r8Vddpijx/ VPC2Xyx0fOyzrCGX0X0tYmxAM5yPgZQrnn/Xc15a8+hLOw5S6+wDzWNNjwCp3k51lBfL hSlw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-bluetooth-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-bluetooth-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id s11si1445966ild.14.2021.09.15.17.07.40; Wed, 15 Sep 2021 17:07:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-bluetooth-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-bluetooth-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-bluetooth-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233083AbhIPAId (ORCPT + 99 others); Wed, 15 Sep 2021 20:08:33 -0400 Received: from mga14.intel.com ([192.55.52.115]:51531 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232936AbhIPAId (ORCPT ); Wed, 15 Sep 2021 20:08:33 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10108"; a="222111307" X-IronPort-AV: E=Sophos;i="5.85,296,1624345200"; d="scan'208";a="222111307" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Sep 2021 17:07:09 -0700 X-IronPort-AV: E=Sophos;i="5.85,296,1624345200"; d="scan'208";a="610393646" Received: from vyellapa-mobl.amr.corp.intel.com ([10.209.32.240]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Sep 2021 17:07:09 -0700 Message-ID: <9d726b9feca265676ea7b7f5c4cd00df784613f6.camel@linux.intel.com> Subject: Re: [PATCH v4 2/4] Bluetooth: hci_sock: Replace use of memcpy_from_msg with bt_skb_sendmsg From: Tedd Ho-Jeong An To: Luiz Augusto von Dentz , linux-bluetooth@vger.kernel.org Date: Wed, 15 Sep 2021 17:07:07 -0700 In-Reply-To: <20210915233600.4129808-2-luiz.dentz@gmail.com> References: <20210915233600.4129808-1-luiz.dentz@gmail.com> <20210915233600.4129808-2-luiz.dentz@gmail.com> Organization: Intel Corporation Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.36.5 (3.36.5-2.fc32) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Hi Luiz On Wed, 2021-09-15 at 16:35 -0700, Luiz Augusto von Dentz wrote: > From: Luiz Augusto von Dentz > > This makes use of bt_skb_sendmsg instead of allocating a different > buffer to be used with memcpy_from_msg which cause one extra copy. > > Signed-off-by: Luiz Augusto von Dentz > --- > net/bluetooth/hci_sock.c | 100 +++++++++++++++------------------------ > 1 file changed, 37 insertions(+), 63 deletions(-) > Tested-by: Tedd Ho-Jeong An