linux-kernel - [PATCH 4.4 03/37] USB: serial: cp210x: use tcflag

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Date:   Tue,  5 Jun 2018 19:01:08 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Geert Uytterhoeven <geert@...ux-m68k.org>,
        Johan Hovold <johan@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 4.4 03/37] USB: serial: cp210x: use tcflag_t to fix incompatible pointer type

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Geert Uytterhoeven <geert@...ux-m68k.org>

commit 009615ab7fd4e43b82a38e4e6adc5e23c1ee567f upstream.

On sparc32, tcflag_t is unsigned long, unlike all other architectures:

    drivers/usb/serial/cp210x.c: In function 'cp210x_get_termios':
    drivers/usb/serial/cp210x.c:717:3: warning: passing argument 2 of 'cp210x_get_termios_port' from incompatible pointer type
       cp210x_get_termios_port(tty->driver_data,
       ^
    drivers/usb/serial/cp210x.c:35:13: note: expected 'unsigned int *' but argument is of type 'tcflag_t *'
     static void cp210x_get_termios_port(struct usb_serial_port *port,
		 ^

Consistently use tcflag_t to fix this.

Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Signed-off-by: Johan Hovold <johan@...nel.org>
Cc: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/serial/cp210x.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -33,7 +33,7 @@ static int cp210x_open(struct tty_struct
 static void cp210x_close(struct usb_serial_port *);
 static void cp210x_get_termios(struct tty_struct *, struct usb_serial_port *);
 static void cp210x_get_termios_port(struct usb_serial_port *port,
-	unsigned int *cflagp, unsigned int *baudp);
+	tcflag_t *cflagp, unsigned int *baudp);
 static void cp210x_change_speed(struct tty_struct *, struct usb_serial_port *,
 							struct ktermios *);
 static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *,
@@ -515,7 +515,7 @@ static void cp210x_get_termios(struct tt
 			&tty->termios.c_cflag, &baud);
 		tty_encode_baud_rate(tty, baud, baud);
 	} else {
-		unsigned int cflag;
+		tcflag_t cflag;
 		cflag = 0;
 		cp210x_get_termios_port(port, &cflag, &baud);
 	}
@@ -526,10 +526,11 @@ static void cp210x_get_termios(struct tt
  * This is the heart of cp210x_get_termios which always uses a &usb_serial_port.
  */
 static void cp210x_get_termios_port(struct usb_serial_port *port,
-	unsigned int *cflagp, unsigned int *baudp)
+	tcflag_t *cflagp, unsigned int *baudp)
 {
 	struct device *dev = &port->dev;
-	unsigned int cflag, modem_ctl[4];
+	tcflag_t cflag;
+	unsigned int modem_ctl[4];
 	unsigned int baud;
 	unsigned int bits;