Received: by 2002:a05:6a10:17d3:0:0:0:0 with SMTP id hz19csp2151110pxb; Mon, 12 Apr 2021 16:09:36 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyI3Fj8UyuWqjvI29OVXCM6etEOlJZKqjqLZoUDW1poiAAf8VHO1mLIe3h1hb6saV4A9WU0 X-Received: by 2002:a63:925a:: with SMTP id s26mr27805744pgn.216.1618268976006; Mon, 12 Apr 2021 16:09:36 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1618268975; cv=none; d=google.com; s=arc-20160816; b=NdJ/Vol6Ep2YOPENHktD4Q2j0ud79noZmRjyIA89ovEAm0zeLeYOQRU9eYFShv2uI4 DY1JICw9K+kM7hxZOTYSIBs/D7LRdQsC9hcht5Ubzf8RbemtmeKpSW0vCr5kjOIihOVm k0rrKB/UgQbpVf1aMKsiCORKFUZ94QzJ0VdhoipeKOCp5+8jisgdKwB7TUABT0op1MSl /FakqBUF8WTLlaqODcwYRxTZiwU3VlGUG6KFuWWpCfY1ajxqY8ApIA49K7gvnk+VGsYR tPnX7Ozau6UIDtoXTjP15cDFDd5jyb6Jq8kqI0HdJliMvCrImsWL+ILkfk9Uy89uzPO4 /opg== 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 :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=nGC1YcO6yjETHlKbYEqcF/711GDgLjbgmLStYGBBWeM=; b=adLwcmSnZwnAMAx+Qz1DHAJTKNP6ZWcTWNx/zCgmtem5ijh9ADjFCaFFf/39VziR16 /bjwFrQgEFXX01q6NIrH442he3vdd0nvUIh8qpuGn97wY2szrxXpCyNzUm5SV/GzDdYl s2D9cyJfPmuU2PFl0DuvjVtSp7yQBTYnPvZsBXeGEeKiyslv5+kG9aKGzihlusox6ptl 3pWRMjmXYcJIk712m5MQe/potqlLlhz3FqKEf8uXIvM8YOX94WImrnFB9Plr6QKz3kvE Rty28ebjOeJOjgnA4Y/8E5XmRL5PPNk8/j89BoJFYcOO1+qV/FOChMk2uwjE0uKwNb7i ksvg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=ksO6PHEL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id j23si912007pji.27.2021.04.12.16.09.23; Mon, 12 Apr 2021 16:09:35 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=ksO6PHEL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243435AbhDLJvF (ORCPT + 99 others); Mon, 12 Apr 2021 05:51:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:55822 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239136AbhDLJjB (ORCPT ); Mon, 12 Apr 2021 05:39:01 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 39C1E6124A; Mon, 12 Apr 2021 09:38:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618220314; bh=QDJTgFMDEzH6DCtgRlJKFTIuSBVCHxr3ft9FZhxyCi8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ksO6PHELWPjo9hpVVRkHo3k02/yR6PObodqvYUkJQGR6P8dsWfdBtPoLKSWCDgg9P aJ6nU2mTGG9YVniKrKUuqRvPQi/oaNeMeSBra+0e/+NTIBR3uSHsqBoWyy7SDjnkg4 6pJDRVDZbofyghD+JgqMBJCNAfAdRSz9x2Om5Cj8b9OGE9upVgZcemyJSmsCwLzO6T JosMUEYPrY3saNTLRf5kSZb+mo2KC1cX7zjw8GKiERG43+LexJlu2bsSNZzM8yvIdz sQBxyEKhacMVtETbm9FXiMmLl5D4rSdPWg1zn/vBiBXSmI8m1zAiYeGWoUEFQJSa/5 lzbU7L5nrC0aA== Received: from johan by xi with local (Exim 4.93.0.4) (envelope-from ) id 1lVt1Y-0000Ci-B9; Mon, 12 Apr 2021 11:38:28 +0200 From: Johan Hovold To: Johan Hovold Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/4] USB: serial: f81232: drop time-based drain delay Date: Mon, 12 Apr 2021 11:38:12 +0200 Message-Id: <20210412093815.736-2-johan@kernel.org> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20210412093815.736-1-johan@kernel.org> References: <20210412093815.736-1-johan@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The f81232 driver now waits for the transmit FIFO to drain during close so there is no need to keep the time-based drain delay, which would add up to two seconds on every close for low line speeds. Fixes: 98405f81036d ("USB: serial: f81232: add tx_empty function") Signed-off-by: Johan Hovold --- drivers/usb/serial/f81232.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index b4b847dce4bc..a7a7af8d05bf 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -948,7 +948,6 @@ static int f81232_port_probe(struct usb_serial_port *port) usb_set_serial_port_data(port, priv); - port->port.drain_delay = 256; priv->port = port; return 0; -- 2.26.3