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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 6F8C5C433DF for ; Wed, 17 Jun 2020 05:14:49 +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 3FEAF2082F for ; Wed, 17 Jun 2020 05:14:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="l3wVlGro"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="YErZksz0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3FEAF2082F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=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=rerd0FsdG5+/F9PzOmkHxOsqC1ZIgNYjXuw9eUC4IRA=; b=l3wVlGrogZqf+2 7KzjYl3hUv50sYabkS+3kvBP7OpRtt1TssXfqR6O45NYVEOz0AdHK8/oyRZUQCkhiM3u1foDUFUCF lSLQPY6El7ks+Pqhkz0OSz+ULNwgw3DdyXr6v5SFfVfiBD77eD6C5kx5Mt1DdqJbsdiRSVG0PvPWR jP0Vbbaew+VsFKUYBCBAZjxBExSgy/yBzr6PKuhRq/2sM4VFFx1kPQrosN847OzrAe3OSE4wLbDmS 5huli89eP9nJbEOhWDjWsYY7cGAzt0gL2IAC/d5nncf8yjncsAy4T/J7igTfJf27iEr1C/b87sqhG WKM28PfrJXSxDKAFl4Qg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlQPI-0005Eo-12; Wed, 17 Jun 2020 05:14:40 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlQP9-00058H-NA; Wed, 17 Jun 2020 05:14:32 +0000 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 106092082F; Wed, 17 Jun 2020 05:14:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592370870; bh=4RC/DvxLHx87nlYMECwxb5uBAMKIO7v3A/WfAL5PBCs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YErZksz0VYampTxWJdKuowSC+ReHO1RudkP9FrchHYS6Yh9N3LGVdZvflUqj8fNVz Koo7nEAU92bNrPGW3HRg+wuttpu8rfAwIkXXN2tgFNO1ZoNezk+eUfGYXqKeaSpett ezmBuDCFceFPfl5n9MgqcOj6K4hXh5r3k9hkXwXw= Date: Wed, 17 Jun 2020 07:14:22 +0200 From: Greg Kroah-Hartman To: Macpaul Lin Subject: Re: [PATCH v2] usb: gadget: u_serial: improve performance for large data Message-ID: <20200617051422.GA1331778@kroah.com> References: <1592310884-4307-1-git-send-email-macpaul.lin@mediatek.com> <1592362007-7120-1-git-send-email-macpaul.lin@mediatek.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1592362007-7120-1-git-send-email-macpaul.lin@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200616_221431_775688_784852BC X-CRM114-Status: UNSURE ( 8.51 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Felipe Balbi , Mediatek WSD Upstream , linux-usb@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, =?utf-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= , Matthias Brugger , Alan Stern , Chunfeng Yun , Sergey Organov , Macpaul Lin , Fabrice Gasnier , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Wed, Jun 17, 2020 at 10:46:47AM +0800, Macpaul Lin wrote: > Nowadays some embedded systems use VCOM to transfer large log and data. > Take LTE MODEM as an example, during the long debugging stage, large > log and data were transfer through VCOM when doing field try or in > operator's lab. Here we suggest slightly increase the transfer buffer > in u_serial.c for performance improving. > > Signed-off-by: Macpaul Lin > --- > drivers/usb/gadget/function/u_serial.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) What changed from v1? Always put that below the --- line as the documentation asks for. v3? _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek