[09/11] USB: serial: mos7840: drop port driver data accessors

Message ID	20191107132904.2379-10-johan@kernel.org (mailing list archive)
State	Mainlined
Commit	7b2faede671adc0a7edbb5f6b1e228aa8b62f7c0
Headers	show Return-Path: <SRS0=QQLj=Y7=vger.kernel.org=linux-usb-owner@kernel.org> From: Johan Hovold <johan@kernel.org> To: Johan Hovold <johan@kernel.org> Cc: linux-usb@vger.kernel.org Subject: [PATCH 09/11] USB: serial: mos7840: drop port driver data accessors Date: Thu, 7 Nov 2019 14:29:02 +0100 Message-Id: <20191107132904.2379-10-johan@kernel.org> In-Reply-To: <20191107132904.2379-1-johan@kernel.org> References: <20191107132904.2379-1-johan@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk
Series	USB: serial: mos7840: type detection and clean ups \| expand [00/11] USB: serial: mos7840: type detection and clean ups [01/11] USB: serial: mos7840: clean up device-type handling [02/11] USB: serial: mos7840: document MCS7810 detection hack [03/11] USB: serial: mos7840: fix probe error handling [04/11] USB: serial: mos7840: rip out broken interrupt handling [05/11] USB: serial: mos7840: drop redundant urb context check [06/11] USB: serial: mos7840: drop paranoid port checks [07/11] USB: serial: mos7840: drop paranoid serial checks [08/11] USB: serial: mos7840: drop serial struct accessor [09/11] USB: serial: mos7840: drop port driver data accessors [10/11] USB: serial: mos7840: drop read-urb check [11/11] USB: serial: mos7840: drop port open flag

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 01787685a4ee..11706f2d4145 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -344,26 +344,6 @@ static void mos7840_dump_serial_port(struct usb_serial_port *port, } -/************************************************************************/ -/************************************************************************/ -/* I N T E R F A C E F U N C T I O N S */ -/* I N T E R F A C E F U N C T I O N S */ -/************************************************************************/ -/************************************************************************/ - -static inline void mos7840_set_port_private(struct usb_serial_port *port, - struct moschip_port *data) -{ - usb_set_serial_port_data(port, (void *)data); -} - -static inline struct moschip_port *mos7840_get_port_private(struct - usb_serial_port - *port) -{ - return (struct moschip_port *)usb_get_serial_port_data(port); -} - /************************************************************************/ /************************************************************************/ /* U S B C A L L B A C K F U N C T I O N S */ @@ -541,17 +521,13 @@ static void mos7840_bulk_out_data_callback(struct urb *urb) static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) { + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; int response; int j; struct urb *urb; __u16 Data; int status; - struct moschip_port *mos7840_port; - - mos7840_port = mos7840_get_port_private(port); - if (mos7840_port == NULL) - return -ENODEV; usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); @@ -773,14 +749,10 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) static int mos7840_chars_in_buffer(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); int i; int chars = 0; unsigned long flags; - struct moschip_port *mos7840_port; - - mos7840_port = mos7840_get_port_private(port); - if (mos7840_port == NULL) - return 0; spin_lock_irqsave(&mos7840_port->pool_lock, flags); for (i = 0; i < NUM_URBS; ++i) { @@ -802,14 +774,10 @@ static int mos7840_chars_in_buffer(struct tty_struct *tty) static void mos7840_close(struct usb_serial_port *port) { - struct moschip_port *mos7840_port; + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); int j; __u16 Data; - mos7840_port = mos7840_get_port_private(port); - if (mos7840_port == NULL) - return; - for (j = 0; j < NUM_URBS; ++j) usb_kill_urb(mos7840_port->write_urb_pool[j]); @@ -840,13 +808,8 @@ static void mos7840_close(struct usb_serial_port *port) static void mos7840_break(struct tty_struct *tty, int break_state) { struct usb_serial_port *port = tty->driver_data; + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); unsigned char data; - struct moschip_port *mos7840_port; - - mos7840_port = mos7840_get_port_private(port); - - if (mos7840_port == NULL) - return; if (break_state == -1) data = mos7840_port->shadowLCR | LCR_SET_BREAK; @@ -871,14 +834,10 @@ static void mos7840_break(struct tty_struct *tty, int break_state) static int mos7840_write_room(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); int i; int room = 0; unsigned long flags; - struct moschip_port *mos7840_port; - - mos7840_port = mos7840_get_port_private(port); - if (mos7840_port == NULL) - return -1; spin_lock_irqsave(&mos7840_port->pool_lock, flags); for (i = 0; i < NUM_URBS; ++i) { @@ -904,22 +863,17 @@ static int mos7840_write_room(struct tty_struct *tty) static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count) { + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; int status; int i; int bytes_sent = 0; int transfer_size; unsigned long flags; - - struct moschip_port *mos7840_port; struct urb *urb; /* __u16 Data; */ const unsigned char *current_position = data; - mos7840_port = mos7840_get_port_private(port); - if (mos7840_port == NULL) - return -1; - /* try to find a free urb in the list */ urb = NULL; @@ -1000,14 +954,9 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, static void mos7840_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - struct moschip_port *mos7840_port; + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); int status; - mos7840_port = mos7840_get_port_private(port); - - if (mos7840_port == NULL) - return; - if (!mos7840_port->open) { dev_dbg(&port->dev, "%s", "port not opened\n"); return; @@ -1039,11 +988,8 @@ static void mos7840_throttle(struct tty_struct *tty) static void mos7840_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); int status; - struct moschip_port *mos7840_port = mos7840_get_port_private(port); - - if (mos7840_port == NULL) - return; if (!mos7840_port->open) { dev_dbg(&port->dev, "%s - port not opened\n", __func__); @@ -1071,15 +1017,10 @@ static void mos7840_unthrottle(struct tty_struct *tty) static int mos7840_tiocmget(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - struct moschip_port *mos7840_port; unsigned int result; __u16 msr; __u16 mcr; int status; - mos7840_port = mos7840_get_port_private(port); - - if (mos7840_port == NULL) - return -ENODEV; status = mos7840_get_uart_reg(port, MODEM_STATUS_REGISTER, &msr); if (status < 0) @@ -1104,15 +1045,10 @@ static int mos7840_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { struct usb_serial_port *port = tty->driver_data; - struct moschip_port *mos7840_port; + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); unsigned int mcr; int status; - mos7840_port = mos7840_get_port_private(port); - - if (mos7840_port == NULL) - return -ENODEV; - /* FIXME: What locks the port registers ? */ mcr = mos7840_port->shadowMCR; if (clear & TIOCM_RTS) @@ -1429,13 +1365,8 @@ static void mos7840_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); int status; - struct moschip_port *mos7840_port; - - mos7840_port = mos7840_get_port_private(port); - - if (mos7840_port == NULL) - return; if (!mos7840_port->open) { dev_dbg(&port->dev, "%s - port not opened\n", __func__); @@ -1497,7 +1428,7 @@ static int mos7840_get_serial_info(struct tty_struct *tty, struct serial_struct *ss) { struct usb_serial_port *port = tty->driver_data; - struct moschip_port *mos7840_port = mos7840_get_port_private(port); + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); ss->type = PORT_16550A; ss->line = mos7840_port->port->minor; @@ -1520,12 +1451,6 @@ static int mos7840_ioctl(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; void __user *argp = (void __user *)arg; - struct moschip_port *mos7840_port; - - mos7840_port = mos7840_get_port_private(port); - - if (mos7840_port == NULL) - return -1; switch (cmd) { /* return number of bytes available */ @@ -1692,7 +1617,6 @@ static int mos7840_port_probe(struct usb_serial_port *port) * common to all port */ mos7840_port->port = port; - mos7840_set_port_private(port, mos7840_port); spin_lock_init(&mos7840_port->pool_lock); /* minor is not initialised until later by @@ -1718,7 +1642,7 @@ static int mos7840_port_probe(struct usb_serial_port *port) mos7840_port->DcrRegOffset = 0x16 + 3 * (phy_num - 2); } mos7840_dump_serial_port(port, mos7840_port); - mos7840_set_port_private(port, mos7840_port); + usb_set_serial_port_data(port, mos7840_port); /* enable rx_disable bit in control register */ status = mos7840_get_reg_sync(port, @@ -1859,9 +1783,7 @@ static int mos7840_port_probe(struct usb_serial_port *port) static int mos7840_port_remove(struct usb_serial_port *port) { - struct moschip_port *mos7840_port; - - mos7840_port = mos7840_get_port_private(port); + struct moschip_port *mos7840_port = usb_get_serial_port_data(port); if (mos7840_port->has_led) { /* Turn off LED */

[09/11] USB: serial: mos7840: drop port driver data accessors

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