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[2620:137:e000::3:3]) by mx.google.com with ESMTPS id h132-20020a636c8a000000b005bdfbf1d562si12145363pgc.192.2023.11.22.10.00.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Nov 2023 10:00:11 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) client-ip=2620:137:e000::3:3; Authentication-Results: mx.google.com; dkim=pass header.i=@hugovil.com header.s=x header.b=wzjDlURU; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by lipwig.vger.email (Postfix) with ESMTP id 3061E824E511; Wed, 22 Nov 2023 10:00:06 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at lipwig.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231652AbjKVSAH (ORCPT + 99 others); Wed, 22 Nov 2023 13:00:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47480 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230377AbjKVSAG (ORCPT ); Wed, 22 Nov 2023 13:00:06 -0500 Received: from mail.hugovil.com (mail.hugovil.com [162.243.120.170]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7CB581B3; Wed, 22 Nov 2023 10:00:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=hugovil.com ; s=x; h=Subject:Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Cc:To :From:subject:date:message-id:reply-to; bh=mogw1+ONtpkAQfXqFiiZf+Z9HRH49163oXyjFNr/5SM=; b=wzjDlURU69dbRv1uUWnq8LJdpP fUFWW3JseNpffxI/31xEbHCDGCMBv2WMsUX40JeS/t6QOhNHthjcAa6KIcK5X11kykR/ColpoaQFJ x08OjrJPT8ZWIJTBAZQ2cuzRetruPrce6HTCaar8NG5t80vLeIbGdkpEPg3ySpiX1+lQ=; Received: from modemcable168.174-80-70.mc.videotron.ca ([70.80.174.168]:50830 helo=pettiford.lan) by mail.hugovil.com with esmtpa (Exim 4.92) (envelope-from ) id 1r5rW2-00015P-MR; Wed, 22 Nov 2023 12:59:59 -0500 From: Hugo Villeneuve To: Greg Kroah-Hartman , Jiri Slaby Cc: hugo@hugovil.com, Hugo Villeneuve , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Date: Wed, 22 Nov 2023 12:59:56 -0500 Message-Id: <20231122175957.3875102-1-hugo@hugovil.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 70.80.174.168 X-SA-Exim-Mail-From: hugo@hugovil.com X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email X-Spam-Level: X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 Subject: [PATCH] serial: max310x: change confusing comment about Tx FIFO X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.hugovil.com) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Wed, 22 Nov 2023 10:00:06 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1783288049161919744 X-GMAIL-MSGID: 1783288049161919744 From: Hugo Villeneuve The comment wording can be confusing, as txlen will return the number of bytes available in the FIFO, which can be less than the maximum theoretical Tx FIFO size. Change the comment so that it is unambiguous. Signed-off-by: Hugo Villeneuve --- drivers/tty/serial/max310x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) base-commit: 98b1cc82c4affc16f5598d4fa14b1858671b2263 diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 97e4965b73d4..f3a99daebdaa 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -780,7 +780,7 @@ static void max310x_handle_tx(struct uart_port *port) to_send = uart_circ_chars_pending(xmit); until_end = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); if (likely(to_send)) { - /* Limit to size of TX FIFO */ + /* Limit to space available in TX FIFO */ txlen = max310x_port_read(port, MAX310X_TXFIFOLVL_REG); txlen = port->fifosize - txlen; to_send = (to_send > txlen) ? txlen : to_send;