greybus-dev August 2022

greybus-dev@lists.linaro.org

4 participants
3 discussions

[PATCH 8/8] tty: Make ->set_termios() old ktermios const

by Ilpo Järvinen

There should be no reason to adjust old ktermios which is going to get discarded anyway. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen(a)linux.intel.com> --- drivers/char/pcmcia/synclink_cs.c | 3 ++- drivers/ipack/devices/ipoctal.c | 2 +- drivers/mmc/core/sdio_uart.c | 4 ++-- drivers/net/usb/hso.c | 3 ++- drivers/s390/char/tty3270.c | 2 +- drivers/staging/fwserial/fwserial.c | 3 ++- drivers/staging/greybus/uart.c | 2 +- drivers/tty/amiserial.c | 6 +++--- drivers/tty/moxa.c | 9 +++++---- drivers/tty/mxser.c | 6 ++++-- drivers/tty/n_gsm.c | 3 ++- drivers/tty/pty.c | 2 +- drivers/tty/serial/serial_core.c | 6 +++--- drivers/tty/synclink_gt.c | 3 ++- drivers/usb/class/cdc-acm.c | 4 ++-- drivers/usb/serial/usb-serial.c | 3 ++- include/linux/tty_driver.h | 4 ++-- net/bluetooth/rfcomm/tty.c | 3 ++- 18 files changed, 39 insertions(+), 29 deletions(-) diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index 8fc49b038372..b2735be81ab2 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -2274,7 +2274,8 @@ static int mgslpc_ioctl(struct tty_struct *tty, * tty pointer to tty structure * termios pointer to buffer to hold returned old termios */ -static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_termios) +static void mgslpc_set_termios(struct tty_struct *tty, + const struct ktermios *old_termios) { MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data; unsigned long flags; diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c index 20d2b9ec1227..fc00274070b6 100644 --- a/drivers/ipack/devices/ipoctal.c +++ b/drivers/ipack/devices/ipoctal.c @@ -497,7 +497,7 @@ static unsigned int ipoctal_chars_in_buffer(struct tty_struct *tty) } static void ipoctal_set_termios(struct tty_struct *tty, - struct ktermios *old_termios) + const struct ktermios *old_termios) { unsigned int cflag; unsigned char mr1 = 0; diff --git a/drivers/mmc/core/sdio_uart.c b/drivers/mmc/core/sdio_uart.c index 414aa82abc39..ae7ef2e038be 100644 --- a/drivers/mmc/core/sdio_uart.c +++ b/drivers/mmc/core/sdio_uart.c @@ -246,7 +246,7 @@ static inline void sdio_uart_update_mctrl(struct sdio_uart_port *port, static void sdio_uart_change_speed(struct sdio_uart_port *port, struct ktermios *termios, - struct ktermios *old) + const struct ktermios *old) { unsigned char cval, fcr = 0; unsigned int baud, quot; @@ -859,7 +859,7 @@ static void sdio_uart_unthrottle(struct tty_struct *tty) } static void sdio_uart_set_termios(struct tty_struct *tty, - struct ktermios *old_termios) + const struct ktermios *old_termios) { struct sdio_uart_port *port = tty->driver_data; unsigned int cflag = tty->termios.c_cflag; diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index f8221a7acf62..ce1f6081d582 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -1380,7 +1380,8 @@ static void hso_serial_cleanup(struct tty_struct *tty) } /* setup the term */ -static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old) +static void hso_serial_set_termios(struct tty_struct *tty, + const struct ktermios *old) { struct hso_serial *serial = tty->driver_data; unsigned long flags; diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index 5c83f71c1d0e..26e3995ac062 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -1760,7 +1760,7 @@ tty3270_flush_chars(struct tty_struct *tty) * Check for visible/invisible input switches */ static void -tty3270_set_termios(struct tty_struct *tty, struct ktermios *old) +tty3270_set_termios(struct tty_struct *tty, const struct ktermios *old) { struct tty3270 *tp; int new; diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index e8fa7f53cd5e..81b06d88ed0d 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -1267,7 +1267,8 @@ static int fwtty_ioctl(struct tty_struct *tty, unsigned int cmd, return err; } -static void fwtty_set_termios(struct tty_struct *tty, struct ktermios *old) +static void fwtty_set_termios(struct tty_struct *tty, + const struct ktermios *old) { struct fwtty_port *port = tty->driver_data; unsigned int baud; diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c index dc4ed0ff1ae2..90ff07f2cbf7 100644 --- a/drivers/staging/greybus/uart.c +++ b/drivers/staging/greybus/uart.c @@ -480,7 +480,7 @@ static int gb_tty_break_ctl(struct tty_struct *tty, int state) } static void gb_tty_set_termios(struct tty_struct *tty, - struct ktermios *termios_old) + const struct ktermios *termios_old) { struct gb_uart_set_line_coding_request newline; struct gb_tty *gb_tty = tty->driver_data; diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 81e7f64c1739..f52266766df9 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -94,7 +94,7 @@ static struct tty_driver *serial_driver; static unsigned char current_ctl_bits; static void change_speed(struct tty_struct *tty, struct serial_state *info, - struct ktermios *old); + const struct ktermios *old); static void rs_wait_until_sent(struct tty_struct *tty, int timeout); @@ -566,7 +566,7 @@ static void shutdown(struct tty_struct *tty, struct serial_state *info) * the specified baud rate for a serial port. */ static void change_speed(struct tty_struct *tty, struct serial_state *info, - struct ktermios *old_termios) + const struct ktermios *old_termios) { struct tty_port *port = &info->tport; int quot = 0, baud_base, baud; @@ -1169,7 +1169,7 @@ static int rs_ioctl(struct tty_struct *tty, return 0; } -static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios) +static void rs_set_termios(struct tty_struct *tty, const struct ktermios *old_termios) { struct serial_state *info = tty->driver_data; unsigned long flags; diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c index f3c72ab1476c..35b6fddf0341 100644 --- a/drivers/tty/moxa.c +++ b/drivers/tty/moxa.c @@ -491,7 +491,7 @@ static int moxa_write(struct tty_struct *, const unsigned char *, int); static unsigned int moxa_write_room(struct tty_struct *); static void moxa_flush_buffer(struct tty_struct *); static unsigned int moxa_chars_in_buffer(struct tty_struct *); -static void moxa_set_termios(struct tty_struct *, struct ktermios *); +static void moxa_set_termios(struct tty_struct *, const struct ktermios *); static void moxa_stop(struct tty_struct *); static void moxa_start(struct tty_struct *); static void moxa_hangup(struct tty_struct *); @@ -499,7 +499,7 @@ static int moxa_tiocmget(struct tty_struct *tty); static int moxa_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); static void moxa_poll(struct timer_list *); -static void moxa_set_tty_param(struct tty_struct *, struct ktermios *); +static void moxa_set_tty_param(struct tty_struct *, const struct ktermios *); static void moxa_shutdown(struct tty_port *); static int moxa_carrier_raised(struct tty_port *); static void moxa_dtr_rts(struct tty_port *, int); @@ -1602,7 +1602,7 @@ static int moxa_tiocmset(struct tty_struct *tty, } static void moxa_set_termios(struct tty_struct *tty, - struct ktermios *old_termios) + const struct ktermios *old_termios) { struct moxa_port *ch = tty->driver_data; @@ -1761,7 +1761,8 @@ static void moxa_poll(struct timer_list *unused) /******************************************************************************/ -static void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios) +static void moxa_set_tty_param(struct tty_struct *tty, + const struct ktermios *old_termios) { register struct ktermios *ts = &tty->termios; struct moxa_port *ch = tty->driver_data; diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c index 70b982b2c6b2..3413bd77beed 100644 --- a/drivers/tty/mxser.c +++ b/drivers/tty/mxser.c @@ -571,7 +571,8 @@ static void mxser_handle_cts(struct tty_struct *tty, struct mxser_port *info, * This routine is called to set the UART divisor registers to match * the specified baud rate for a serial port. */ -static void mxser_change_speed(struct tty_struct *tty, struct ktermios *old_termios) +static void mxser_change_speed(struct tty_struct *tty, + const struct ktermios *old_termios) { struct mxser_port *info = tty->driver_data; unsigned cflag, cval; @@ -1348,7 +1349,8 @@ static void mxser_start(struct tty_struct *tty) spin_unlock_irqrestore(&info->slock, flags); } -static void mxser_set_termios(struct tty_struct *tty, struct ktermios *old_termios) +static void mxser_set_termios(struct tty_struct *tty, + const struct ktermios *old_termios) { struct mxser_port *info = tty->driver_data; unsigned long flags; diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index caa5c14ed57f..97cd8d67c866 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -3647,7 +3647,8 @@ static int gsmtty_ioctl(struct tty_struct *tty, } } -static void gsmtty_set_termios(struct tty_struct *tty, struct ktermios *old) +static void gsmtty_set_termios(struct tty_struct *tty, + const struct ktermios *old) { struct gsm_dlci *dlci = tty->driver_data; if (dlci->state == DLCI_CLOSED) diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index 752dab3356d7..07394fdaf522 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -240,7 +240,7 @@ static int pty_open(struct tty_struct *tty, struct file *filp) } static void pty_set_termios(struct tty_struct *tty, - struct ktermios *old_termios) + const struct ktermios *old_termios) { /* See if packet mode change of state. */ if (tty->link && tty->link->ctrl.packet) { diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index c8295904b331..a8202b582bcc 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -49,7 +49,7 @@ static struct lock_class_key port_lock_key; #define RS485_MAX_RTS_DELAY 100 /* msecs */ static void uart_change_speed(struct tty_struct *tty, struct uart_state *state, - struct ktermios *old_termios); + const struct ktermios *old_termios); static void uart_wait_until_sent(struct tty_struct *tty, int timeout); static void uart_change_pm(struct uart_state *state, enum uart_pm_state pm_state); @@ -492,7 +492,7 @@ EXPORT_SYMBOL(uart_get_divisor); /* Caller holds port mutex */ static void uart_change_speed(struct tty_struct *tty, struct uart_state *state, - struct ktermios *old_termios) + const struct ktermios *old_termios) { struct uart_port *uport = uart_port_check(state); struct ktermios *termios; @@ -1619,7 +1619,7 @@ static void uart_set_ldisc(struct tty_struct *tty) } static void uart_set_termios(struct tty_struct *tty, - struct ktermios *old_termios) + const struct ktermios *old_termios) { struct uart_state *state = tty->driver_data; struct uart_port *uport; diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index 9bc2a9265277..4a003e929776 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -707,7 +707,8 @@ static void hangup(struct tty_struct *tty) wake_up_interruptible(&info->port.open_wait); } -static void set_termios(struct tty_struct *tty, struct ktermios *old_termios) +static void set_termios(struct tty_struct *tty, + const struct ktermios *old_termios) { struct slgt_info *info = tty->driver_data; unsigned long flags; diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 483bcb1213f7..46dbf907e4b5 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -51,7 +51,7 @@ static DEFINE_IDR(acm_minors); static DEFINE_MUTEX(acm_minors_lock); static void acm_tty_set_termios(struct tty_struct *tty, - struct ktermios *termios_old); + const struct ktermios *termios_old); /* * acm_minors accessors @@ -1049,7 +1049,7 @@ static int acm_tty_ioctl(struct tty_struct *tty, } static void acm_tty_set_termios(struct tty_struct *tty, - struct ktermios *termios_old) + const struct ktermios *termios_old) { struct acm *acm = tty->driver_data; struct ktermios *termios = &tty->termios; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index e35bea2235c1..164521ee10c6 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -519,7 +519,8 @@ static int serial_ioctl(struct tty_struct *tty, return retval; } -static void serial_set_termios(struct tty_struct *tty, struct ktermios *old) +static void serial_set_termios(struct tty_struct *tty, + const struct ktermios *old) { struct usb_serial_port *port = tty->driver_data; diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h index 4841d8069c07..b2456b545ba0 100644 --- a/include/linux/tty_driver.h +++ b/include/linux/tty_driver.h @@ -141,7 +141,7 @@ struct serial_struct; * * Optional. * - * @set_termios: ``void ()(struct tty_struct *tty, struct ktermios *old)`` + * @set_termios: ``void ()(struct tty_struct *tty, const struct ktermios *old)`` * * This routine allows the @tty driver to be notified when device's * termios settings have changed. New settings are in @tty->termios. @@ -365,7 +365,7 @@ struct tty_operations { unsigned int cmd, unsigned long arg); long (*compat_ioctl)(struct tty_struct *tty, unsigned int cmd, unsigned long arg); - void (*set_termios)(struct tty_struct *tty, struct ktermios * old); + void (*set_termios)(struct tty_struct *tty, const struct ktermios *old); void (*throttle)(struct tty_struct * tty); void (*unthrottle)(struct tty_struct * tty); void (*stop)(struct tty_struct *tty); diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index ebd78fdbd6e8..b9536641161c 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -855,7 +855,8 @@ static int rfcomm_tty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned l return -ENOIOCTLCMD; } -static void rfcomm_tty_set_termios(struct tty_struct *tty, struct ktermios *old) +static void rfcomm_tty_set_termios(struct tty_struct *tty, + const struct ktermios *old) { struct ktermios *new = &tty->termios; int old_baud_rate = tty_termios_baud_rate(old); -- 2.30.2

2 years, 9 months

[PATCH linux-next] staging: greybus:using the

by cgel.zte＠gmail.com

From: ye xingchen <ye.xingchen(a)zte.com.cn> Using pm_runtime_resume_and_get() to instade of pm_runtime_get_sync and pm_runtime_put_noidle. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: ye xingchen <ye.xingchen(a)zte.com.cn> --- drivers/greybus/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/greybus/core.c b/drivers/greybus/core.c index e546c6431877..b9063e86534b 100644 --- a/drivers/greybus/core.c +++ b/drivers/greybus/core.c @@ -174,9 +174,8 @@ static int greybus_probe(struct device *dev) if (!id) return -ENODEV; - retval = pm_runtime_get_sync(&bundle->intf->dev); + retval = pm_runtime_resume_and_get(&bundle->intf->dev); if (retval < 0) { - pm_runtime_put_noidle(&bundle->intf->dev); return retval; } -- 2.25.1

2 years, 9 months

[PATCH linux-next] staging: greybus:using the pm_runtime_resume_and_get to simplify the code

by cgel.zte＠gmail.com

2 years, 9 months

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

greybus-dev August 2022