user/sven/linux.git/include/linux/tty_driver.h, branch v5.16.13

tty: Fix extra "not" in TTY_DRIVER_REAL_RAW description

2021-10-30T09:02:00Z

TTY_DRIVER_REAL_RAW flag (which is always set for e.g. serial ports) documentation says that driver must always set special character handling flags in certain conditions. However, as the following sentence makes clear, what is actually intended is the opposite. Fix that by removing the unintended double negation. Acked-by: Johan Hovold Signed-off-by: Anssi Hannula Link: https://lore.kernel.org/r/20211027102124.3049414-1-anssi.hannula@bitwise.fi Signed-off-by: Greg Kroah-Hartman

tty: remove extern from functions in tty headers

2021-09-22T14:59:13Z

After the recent headers cleanup, some function declarations still have extern before them. It is superfluous (for function declarations), so remove extern from those which still have it. This unifies them with the rest of the files. Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20210914091134.17426-3-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman

tty: drop put_tty_driver

2021-07-27T10:17:21Z

put_tty_driver() is an alias for tty_driver_kref_put(). There is no need for two exported identical functions, therefore switch all users of old put_tty_driver() to new tty_driver_kref_put() and remove the former for good. Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Geert Uytterhoeven Cc: Jeff Dike Cc: Richard Weinberger Cc: Anton Ivanov Cc: Chris Zankel Cc: Max Filippov Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Cc: Samuel Iglesias Gonsalvez Cc: Jens Taprogge Cc: Karsten Keil Cc: Scott Branden Cc: Ulf Hansson Cc: "David S. Miller" Cc: Jakub Kicinski Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: David Lin Cc: Johan Hovold Cc: Alex Elder Cc: Jiri Slaby Cc: Laurentiu Tudor Cc: Jiri Kosina Cc: David Sterba Cc: Shawn Guo Cc: Sascha Hauer Cc: Pengutronix Kernel Team Cc: Fabio Estevam Cc: NXP Linux Team Cc: Oliver Neukum Cc: Felipe Balbi Cc: Mathias Nyman Cc: Marcel Holtmann Cc: Johan Hedberg Cc: Luiz Augusto von Dentz Acked-by: Alex Elder Acked-by: Christian Borntraeger Acked-by: Max Filippov Acked-by: David Sterba Acked-by: Samuel Iglesias Gonsálvez Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20210723074317.32690-8-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman

tty: make tty_set_operations an inline

2021-07-27T10:17:21Z

Since commit f34d7a5b7010 (tty: The big operations rework) in 2008, tty_set_operations() is a simple one-line assignment. There is no reason for this to be an exported function, hence move it to a header and make an inline from that. Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20210723074317.32690-7-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman

tty: drop alloc_tty_driver

2021-07-27T10:17:21Z

Noone uses this deprecated function now. So we can remove it. Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20210723074317.32690-6-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman

tty: include kref.h in tty_driver.h

2021-07-27T10:12:07Z

We use kref in tty_driver.h, but do not include kref.h. It is currently included by linux/cdev.h -> linux/kobject.h -> linux/kref.h chain, so everything is in order only implicitly. So make this dependency explicit. Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20210723103147.18250-3-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman

tty: move tty_driver related prototypes to tty_driver.h

2021-07-27T10:12:07Z

We already have tty_driver.h, so cleanup tty.h a bit by moving out tty_driver-related function prototypes into tty_driver.h. Note that tty.h already includes tty_driver.h. Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20210723103147.18250-2-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman

tty: remove unused tty_throttle

2021-05-13T16:29:11Z

The last user was removed in commit e91e52e42814 (n_tty: Fix stuck throttled driver) in 2013. So remove exported tty_throttle completely. Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20210510065923.5112-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman

tty: make tty_operations::chars_in_buffer return uint

2021-05-13T16:29:11Z

tty_operations::chars_in_buffer is another hook which is expected to return values >= 0. So make it explicit by the return type too -- use unsigned int. Signed-off-by: Jiri Slaby Acked-By: Anton Ivanov Acked-by: David Sterba Cc: Jeff Dike Cc: Richard Weinberger Cc: Arnd Bergmann Cc: Samuel Iglesias Gonsalvez Cc: Jens Taprogge Cc: Karsten Keil Cc: Ulf Hansson Cc: "David S. Miller" Cc: Jakub Kicinski Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: David Lin Cc: Johan Hovold Cc: Alex Elder Cc: Jiri Kosina Cc: Shawn Guo Cc: Sascha Hauer Cc: Oliver Neukum Cc: Felipe Balbi Cc: Mathias Nyman Cc: Marcel Holtmann Cc: Johan Hedberg Cc: Luiz Augusto von Dentz Link: https://lore.kernel.org/r/20210505091928.22010-27-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman

tty: make tty_operations::write_room return uint

2021-05-13T15:03:20Z

Line disciplines expect a positive value or zero returned from tty->ops->write_room (invoked by tty_write_room). So make this assumption explicit by using unsigned int as a return value. Both of tty->ops->write_room and tty_write_room. Signed-off-by: Jiri Slaby Acked-by: Laurentiu Tudor Acked-by: Alex Elder Acked-by: Max Filippov # xtensa Acked-by: David Sterba Acked-By: Anton Ivanov Acked-by: Geert Uytterhoeven Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Jeff Dike Cc: Richard Weinberger Cc: Chris Zankel Cc: Arnd Bergmann Cc: Samuel Iglesias Gonsalvez Cc: Jens Taprogge Cc: Karsten Keil Cc: Scott Branden Cc: Ulf Hansson Cc: "David S. Miller" Cc: Jakub Kicinski Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: David Lin Cc: Johan Hovold Cc: Jiri Kosina Cc: Shawn Guo Cc: Sascha Hauer Cc: Oliver Neukum Cc: Felipe Balbi Cc: Mathias Nyman Cc: Marcel Holtmann Cc: Johan Hedberg Cc: Luiz Augusto von Dentz Link: https://lore.kernel.org/r/20210505091928.22010-23-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman