From patchwork Tue Jan 10 12:02:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 641204 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A297C46467 for ; Tue, 10 Jan 2023 12:04:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230322AbjAJMEp (ORCPT ); Tue, 10 Jan 2023 07:04:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49916 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238369AbjAJMDu (ORCPT ); Tue, 10 Jan 2023 07:03:50 -0500 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC1AD59323; Tue, 10 Jan 2023 04:03:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1673352228; x=1704888228; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=AWWr/BlbU8yzxpuWX74jI3h7EABvwrmH5cTRTGGc+aE=; b=nuMTL+cHJB7aeW8wf02L+gISsn6jtyRBRVkHJ1XUiVyh1UPnWcY2T3I/ Foch20Rs4odkkHVYp3XSFYe1R/GQrvO9Rt3TjMYWfQ4iecisjrYCGHioj JE21MKMD8bo+cIqisV1gm5RNr6U5U8vX/gRShT1A8Rr/guxhaKCd54hi6 QcYMtYwQhc5bloCs7PpJeRkgXKX9GPAV/iP4JNDKHAKuMmX0sNmyphrDR 0rRtEwiZP8ZmHpsCt/BbhvAQL/miT//N2LydVINCzhKiJDz65hw3zc092 sI7T9zzhXlWH8dCbf/qwHBIuZrmeLJZb4hkDGcQ0WLfQIbG3qsBN56cGr Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10585"; a="350350165" X-IronPort-AV: E=Sophos;i="5.96,315,1665471600"; d="scan'208";a="350350165" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jan 2023 04:03:43 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10585"; a="799406968" X-IronPort-AV: E=Sophos;i="5.96,315,1665471600"; d="scan'208";a="799406968" Received: from gbocanex-mobl.ger.corp.intel.com (HELO ijarvine-MOBL2.ger.corp.intel.com) ([10.249.44.115]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jan 2023 04:03:39 -0800 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: linux-serial@vger.kernel.org, Greg Kroah-Hartman , Jiri Slaby , Johan Hovold , =?utf-8?q?Samuel_Iglesias_Gons=C3=A1lvez?= , Rodolfo Giometti , "David S. Miller" , linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, linux-usb@vger.kernel.org Cc: =?utf-8?q?Ilpo_J=C3=A4rvinen?= Subject: [PATCH v2 08/13] tty/serial: Make ->dcd_change()+uart_handle_dcd_change() status bool active Date: Tue, 10 Jan 2023 14:02:21 +0200 Message-Id: <20230110120226.14972-9-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230110120226.14972-1-ilpo.jarvinen@linux.intel.com> References: <20230110120226.14972-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org Convert status parameter for ->dcd_change() and uart_handle_dcd_change() to bool which matches to how the parameter is used. Rename status to active to better describe what the parameter means. Acked-by: Rodolfo Giometti Reviewed-by: Jiri Slaby Signed-off-by: Ilpo Järvinen --- drivers/pps/clients/pps-ldisc.c | 6 +++--- drivers/tty/serial/serial_core.c | 8 ++++---- drivers/tty/serial/sunhv.c | 8 ++++---- drivers/usb/serial/generic.c | 10 +++++----- include/linux/serial_core.h | 3 +-- include/linux/tty_ldisc.h | 4 ++-- include/linux/usb/serial.h | 2 +- 7 files changed, 20 insertions(+), 21 deletions(-) diff --git a/drivers/pps/clients/pps-ldisc.c b/drivers/pps/clients/pps-ldisc.c index d73c4c2ed4e1..443d6bae19d1 100644 --- a/drivers/pps/clients/pps-ldisc.c +++ b/drivers/pps/clients/pps-ldisc.c @@ -13,7 +13,7 @@ #include #include -static void pps_tty_dcd_change(struct tty_struct *tty, unsigned int status) +static void pps_tty_dcd_change(struct tty_struct *tty, bool active) { struct pps_device *pps; struct pps_event_time ts; @@ -29,11 +29,11 @@ static void pps_tty_dcd_change(struct tty_struct *tty, unsigned int status) return; /* Now do the PPS event report */ - pps_event(pps, &ts, status ? PPS_CAPTUREASSERT : + pps_event(pps, &ts, active ? PPS_CAPTUREASSERT : PPS_CAPTURECLEAR, NULL); dev_dbg(pps->dev, "PPS %s at %lu\n", - status ? "assert" : "clear", jiffies); + active ? "assert" : "clear", jiffies); } static int (*alias_n_tty_open)(struct tty_struct *tty); diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 053535846ba2..f8a9386db482 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -3252,11 +3252,11 @@ EXPORT_SYMBOL(uart_match_port); /** * uart_handle_dcd_change - handle a change of carrier detect state * @uport: uart_port structure for the open port - * @status: new carrier detect status, nonzero if active + * @active: new carrier detect status * * Caller must hold uport->lock. */ -void uart_handle_dcd_change(struct uart_port *uport, unsigned int status) +void uart_handle_dcd_change(struct uart_port *uport, bool active) { struct tty_port *port = &uport->state->port; struct tty_struct *tty = port->tty; @@ -3268,7 +3268,7 @@ void uart_handle_dcd_change(struct uart_port *uport, unsigned int status) ld = tty_ldisc_ref(tty); if (ld) { if (ld->ops->dcd_change) - ld->ops->dcd_change(tty, status); + ld->ops->dcd_change(tty, active); tty_ldisc_deref(ld); } } @@ -3276,7 +3276,7 @@ void uart_handle_dcd_change(struct uart_port *uport, unsigned int status) uport->icount.dcd++; if (uart_dcd_enabled(uport)) { - if (status) + if (active) wake_up_interruptible(&port->open_wait); else if (tty) tty_hangup(tty); diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c index 16c746a63258..7d38c33ef506 100644 --- a/drivers/tty/serial/sunhv.c +++ b/drivers/tty/serial/sunhv.c @@ -87,10 +87,10 @@ static int receive_chars_getchar(struct uart_port *port) if (c == CON_HUP) { hung_up = 1; - uart_handle_dcd_change(port, 0); + uart_handle_dcd_change(port, false); } else if (hung_up) { hung_up = 0; - uart_handle_dcd_change(port, 1); + uart_handle_dcd_change(port, true); } if (port->state == NULL) { @@ -133,7 +133,7 @@ static int receive_chars_read(struct uart_port *port) bytes_read = 1; } else if (stat == CON_HUP) { hung_up = 1; - uart_handle_dcd_change(port, 0); + uart_handle_dcd_change(port, false); continue; } else { /* HV_EWOULDBLOCK, etc. */ @@ -143,7 +143,7 @@ static int receive_chars_read(struct uart_port *port) if (hung_up) { hung_up = 0; - uart_handle_dcd_change(port, 1); + uart_handle_dcd_change(port, true); } if (port->sysrq != 0 && *con_read_page) { diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 15b6dee3a8e5..f2d31e56eafc 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -605,24 +605,24 @@ EXPORT_SYMBOL_GPL(usb_serial_handle_break); * usb_serial_handle_dcd_change - handle a change of carrier detect state * @port: usb-serial port * @tty: tty for the port - * @status: new carrier detect status, nonzero if active + * @active: new carrier-detect status */ void usb_serial_handle_dcd_change(struct usb_serial_port *port, - struct tty_struct *tty, unsigned int status) + struct tty_struct *tty, bool active) { - dev_dbg(&port->dev, "%s - status %d\n", __func__, status); + dev_dbg(&port->dev, "%s - active %d\n", __func__, active); if (tty) { struct tty_ldisc *ld = tty_ldisc_ref(tty); if (ld) { if (ld->ops->dcd_change) - ld->ops->dcd_change(tty, status); + ld->ops->dcd_change(tty, active); tty_ldisc_deref(ld); } } - if (status) + if (active) wake_up_interruptible(&port->port.open_wait); else if (tty && !C_CLOCAL(tty)) tty_hangup(tty); diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index fd59f600094a..760c96ffb5bd 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -896,8 +896,7 @@ static inline bool uart_softcts_mode(struct uart_port *uport) * The following are helper functions for the low level drivers. */ -extern void uart_handle_dcd_change(struct uart_port *uport, - unsigned int status); +extern void uart_handle_dcd_change(struct uart_port *uport, bool active); extern void uart_handle_cts_change(struct uart_port *uport, unsigned int status); diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h index dcb61ec11424..49dc172dedc7 100644 --- a/include/linux/tty_ldisc.h +++ b/include/linux/tty_ldisc.h @@ -170,7 +170,7 @@ int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass, * send, please arise a tasklet or workqueue to do the real data transfer. * Do not send data in this hook, it may lead to a deadlock. * - * @dcd_change: [DRV] ``void ()(struct tty_struct *tty, unsigned int status)`` + * @dcd_change: [DRV] ``void ()(struct tty_struct *tty, bool active)`` * * Tells the discipline that the DCD pin has changed its status. Used * exclusively by the %N_PPS (Pulse-Per-Second) line discipline. @@ -238,7 +238,7 @@ struct tty_ldisc_ops { void (*receive_buf)(struct tty_struct *tty, const unsigned char *cp, const char *fp, int count); void (*write_wakeup)(struct tty_struct *tty); - void (*dcd_change)(struct tty_struct *tty, unsigned int status); + void (*dcd_change)(struct tty_struct *tty, bool active); int (*receive_buf2)(struct tty_struct *tty, const unsigned char *cp, const char *fp, int count); void (*lookahead_buf)(struct tty_struct *tty, const unsigned char *cp, diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index c597357853d9..bad343c5e8a7 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -372,7 +372,7 @@ static inline int usb_serial_handle_break(struct usb_serial_port *port) #endif void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port, - struct tty_struct *tty, unsigned int status); + struct tty_struct *tty, bool active); int usb_serial_bus_register(struct usb_serial_driver *device);