From: Alex Elder <elder@ieee.org>
To: Jiri Slaby <jslaby@suse.cz>, gregkh@linuxfoundation.org
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Helge Deller <deller@gmx.de>, Jeff Dike <jdike@addtoit.com>,
Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>, Arnd Bergmann <arnd@arndb.de>,
Samuel Iglesias Gonsalvez <siglesias@igalia.com>,
Jens Taprogge <jens.taprogge@taprogge.org>,
Karsten Keil <isdn@linux-pingi.de>,
Scott Branden <scott.branden@broadcom.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
David Lin <dtwlin@gmail.com>, Johan Hovold <johan@kernel.org>,
Alex Elder <elder@kernel.org>,
Laurentiu Tudor <laurentiu.tudor@nxp.com>,
Jiri Kosina <jikos@kernel.org>, David Sterba <dsterba@suse.com>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Oliver Neukum <oneukum@suse.com>, Felipe Balbi <balbi@kernel.org>,
Mathias Nyman <mathias.nyman@intel.com>,
Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Subject: Re: [PATCH 22/35] tty: make tty_operations::write_room return uint
Date: Wed, 5 May 2021 07:15:56 -0500 [thread overview]
Message-ID: <608f186f-0c88-1a5d-e612-7f133476f1e3@ieee.org> (raw)
In-Reply-To: <20210505091928.22010-23-jslaby@suse.cz>
On 5/5/21 4:19 AM, Jiri Slaby wrote:
> 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 <jslaby@suse.cz>
> Cc: Richard Henderson <rth@twiddle.net>
> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
> Cc: Matt Turner <mattst88@gmail.com>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Jeff Dike <jdike@addtoit.com>
> Cc: Richard Weinberger <richard@nod.at>
> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
> Cc: Chris Zankel <chris@zankel.net>
> Cc: Max Filippov <jcmvbkbc@gmail.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
> Cc: Jens Taprogge <jens.taprogge@taprogge.org>
> Cc: Karsten Keil <isdn@linux-pingi.de>
> Cc: Scott Branden <scott.branden@broadcom.com>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: Heiko Carstens <hca@linux.ibm.com>
> Cc: Vasily Gorbik <gor@linux.ibm.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: David Lin <dtwlin@gmail.com>
> Cc: Johan Hovold <johan@kernel.org>
> Cc: Alex Elder <elder@kernel.org>
> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
> Cc: Jiri Kosina <jikos@kernel.org>
> Cc: David Sterba <dsterba@suse.com>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <s.hauer@pengutronix.de>
> Cc: Oliver Neukum <oneukum@suse.com>
> Cc: Felipe Balbi <balbi@kernel.org>
> Cc: Mathias Nyman <mathias.nyman@intel.com>
> Cc: Marcel Holtmann <marcel@holtmann.org>
> Cc: Johan Hedberg <johan.hedberg@gmail.com>
> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
> ---
> arch/alpha/kernel/srmcons.c | 2 +-
> arch/m68k/emu/nfcon.c | 2 +-
> arch/parisc/kernel/pdc_cons.c | 2 +-
> arch/um/drivers/line.c | 6 +++---
> arch/um/drivers/line.h | 2 +-
> arch/xtensa/platforms/iss/console.c | 2 +-
> drivers/char/pcmcia/synclink_cs.c | 2 +-
> drivers/char/ttyprintk.c | 2 +-
> drivers/ipack/devices/ipoctal.c | 2 +-
> drivers/isdn/capi/capi.c | 6 +++---
> drivers/misc/bcm-vk/bcm_vk_tty.c | 2 +-
> drivers/mmc/core/sdio_uart.c | 2 +-
> drivers/net/usb/hso.c | 4 ++--
> drivers/s390/char/con3215.c | 2 +-
> drivers/s390/char/sclp_tty.c | 4 ++--
> drivers/s390/char/sclp_vt220.c | 4 ++--
> drivers/s390/char/tty3270.c | 2 +-
> drivers/staging/fwserial/fwserial.c | 6 +++---
> drivers/staging/gdm724x/gdm_tty.c | 2 +-
> drivers/staging/greybus/uart.c | 2 +-
> drivers/tty/amiserial.c | 2 +-
> drivers/tty/ehv_bytechan.c | 4 ++--
> drivers/tty/goldfish.c | 2 +-
> drivers/tty/hvc/hvc_console.c | 2 +-
> drivers/tty/hvc/hvcs.c | 2 +-
> drivers/tty/hvc/hvsi.c | 4 ++--
> drivers/tty/ipwireless/tty.c | 2 +-
> drivers/tty/mips_ejtag_fdc.c | 4 ++--
> drivers/tty/moxa.c | 8 ++++----
> drivers/tty/mxser.c | 2 +-
> drivers/tty/n_gsm.c | 2 +-
> drivers/tty/nozomi.c | 4 ++--
> drivers/tty/pty.c | 2 +-
> drivers/tty/serial/kgdb_nmi.c | 2 +-
> drivers/tty/serial/serial_core.c | 4 ++--
> drivers/tty/synclink_gt.c | 6 +++---
> drivers/tty/tty_ioctl.c | 2 +-
> drivers/tty/ttynull.c | 2 +-
> drivers/tty/vcc.c | 4 ++--
> drivers/tty/vt/vt.c | 2 +-
> drivers/usb/class/cdc-acm.c | 2 +-
> drivers/usb/gadget/function/u_serial.c | 6 +++---
> drivers/usb/host/xhci-dbgtty.c | 4 ++--
> drivers/usb/serial/usb-serial.c | 2 +-
> include/linux/tty.h | 2 +-
> include/linux/tty_driver.h | 4 ++--
> net/bluetooth/rfcomm/tty.c | 2 +-
> 47 files changed, 71 insertions(+), 71 deletions(-)
. . .
Looks good.
Acked-by: Alex Elder <elder@linaro.org.
> diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
> index b1e63f7798b0..529eccb99b6c 100644
> --- a/drivers/staging/greybus/uart.c
> +++ b/drivers/staging/greybus/uart.c
> @@ -440,7 +440,7 @@ static int gb_tty_write(struct tty_struct *tty, const unsigned char *buf,
> return count;
> }
>
> -static int gb_tty_write_room(struct tty_struct *tty)
> +static unsigned int gb_tty_write_room(struct tty_struct *tty)
> {
> struct gb_tty *gb_tty = tty->driver_data;
> unsigned long flags;
. . .
next prev parent reply other threads:[~2021-05-05 12:17 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-05 9:18 [PATCH 00/35] tty cleanup for 5.14 Jiri Slaby
2021-05-05 9:18 ` [PATCH 01/35] tty: remove broken r3964 line discipline Jiri Slaby
2021-05-05 9:26 ` Greg KH
2021-05-05 9:18 ` [PATCH 02/35] n_tty: remove n_tty_receive_char wrapper Jiri Slaby
2021-05-05 9:18 ` [PATCH 03/35] n_tty: remove n_tty_receive_char_fast Jiri Slaby
2021-05-05 9:18 ` [PATCH 04/35] n_tty: drop n_tty_receive_buf_fast Jiri Slaby
2021-05-05 9:18 ` [PATCH 05/35] n_tty: drop parmrk_dbl from n_tty_receive_char Jiri Slaby
2021-05-05 9:18 ` [PATCH 06/35] n_tty: move lnext handling Jiri Slaby
2021-05-05 9:19 ` [PATCH 07/35] n_tty: make n_tty_receive_char_special return void Jiri Slaby
2021-05-05 9:19 ` [PATCH 08/35] n_tty: do only one cp dereference in n_tty_receive_buf_standard Jiri Slaby
2021-05-05 9:19 ` [PATCH 09/35] n_tty: invert TTY_NORMAL condition " Jiri Slaby
2021-05-05 9:19 ` [PATCH 10/35] n_tty: remove superfluous return from n_tty_receive_signal_char Jiri Slaby
2021-05-05 9:19 ` [PATCH 11/35] tty: make fp of tty_ldisc_ops::receive_buf{,2} const Jiri Slaby
2021-05-05 9:19 ` [PATCH 12/35] tty: cumulate and document tty_struct::flow* members Jiri Slaby
2021-05-05 9:19 ` [PATCH 13/35] tty: cumulate and document tty_struct::ctrl* members Jiri Slaby
2021-05-05 9:19 ` [PATCH 14/35] tty: set tty_ldisc_ops::num statically Jiri Slaby
2021-05-05 9:19 ` [PATCH 15/35] n_gsm: use goto-failpaths in gsm_init Jiri Slaby
2021-05-05 9:19 ` [PATCH 16/35] tty: make tty_ldisc_ops a param in tty_unregister_ldisc Jiri Slaby
2021-05-05 9:19 ` [PATCH 17/35] tty: drop tty_ldisc_ops::refcount Jiri Slaby
2021-05-05 9:19 ` [PATCH 18/35] tty: no checking of tty_unregister_ldisc Jiri Slaby
2021-05-05 9:19 ` [PATCH 19/35] tty: return void from tty_unregister_ldisc Jiri Slaby
2021-05-05 9:19 ` [PATCH 20/35] ti-st: use goto-failpath in st_core_init Jiri Slaby
2021-05-05 9:19 ` [PATCH 21/35] ti-st: use tty_write_room Jiri Slaby
2021-05-05 9:19 ` [PATCH 22/35] tty: make tty_operations::write_room return uint Jiri Slaby
2021-05-05 9:25 ` Geert Uytterhoeven
2021-05-05 10:34 ` Anton Ivanov
2021-05-05 10:43 ` David Sterba
2021-05-05 11:53 ` Max Filippov
2021-05-05 12:15 ` Alex Elder [this message]
2021-05-10 11:27 ` Laurentiu Tudor
2021-05-05 9:19 ` [PATCH 23/35] USB: serial: make usb_serial_driver::write_room " Jiri Slaby
2021-05-19 9:07 ` Johan Hovold
2021-05-05 9:19 ` [PATCH 24/35] tty: make tty_buffer_space_avail " Jiri Slaby
2021-05-05 9:19 ` [PATCH 25/35] tty: remove tty_operations::chars_in_buffer for non-buffering Jiri Slaby
2021-05-05 11:51 ` Max Filippov
2021-05-06 5:47 ` Jiri Slaby
2021-05-06 5:56 ` Greg KH
2021-05-05 9:19 ` [PATCH 26/35] tty: make tty_operations::chars_in_buffer return uint Jiri Slaby
2021-05-05 10:34 ` Anton Ivanov
2021-05-05 10:43 ` David Sterba
2021-05-05 9:19 ` [PATCH 27/35] serial: make usb_serial_driver::chars_in_buffer " Jiri Slaby
2021-05-19 9:09 ` Johan Hovold
2021-05-05 9:19 ` [PATCH 28/35] nozomi: simplify ntty_chars_in_buffer Jiri Slaby
2021-05-05 9:19 ` [PATCH 29/35] USB: serial: digi_acceleport, simplify digi_chars_in_buffer Jiri Slaby
2021-05-19 9:11 ` Johan Hovold
2021-05-05 9:19 ` [PATCH 30/35] tty: remove empty tty_operations::flush_buffer Jiri Slaby
2021-05-05 9:19 ` [PATCH 31/35] tty: remove empty tty_operations::set_termios Jiri Slaby
2021-05-05 10:34 ` Anton Ivanov
2021-05-05 9:19 ` [PATCH 32/35] isdn: capi, remove optional tty ops Jiri Slaby
2021-05-05 9:19 ` [PATCH 33/35] isdn: capi, drop useless pr_debugs Jiri Slaby
2021-05-05 9:19 ` [PATCH 34/35] tty: make tty_get_byte_size available Jiri Slaby
2021-05-06 7:16 ` Joe Perches
2021-05-06 7:19 ` Jiri Slaby
[not found] ` <CAHp75Vfq6ABW7ukwaKmZOF2DszmuHD28S=wcLcFowvRdXTnWmg@mail.gmail.com>
2021-05-06 8:31 ` Jiri Slaby
2021-05-06 9:33 ` Andy Shevchenko
2021-05-06 8:35 ` Joe Perches
2021-05-10 7:00 ` [PATCH v2 " Jiri Slaby
2021-05-10 9:47 ` Johan Hovold
2021-05-13 7:24 ` Jiri Slaby
2021-05-13 9:41 ` Johan Hovold
2021-05-05 9:19 ` [PATCH 35/35] tty: make use of tty_get_byte_size Jiri Slaby
2021-05-10 9:59 ` Johan Hovold
2021-05-13 15:04 ` [PATCH 00/35] tty cleanup for 5.14 Greg KH
2021-05-13 16:20 ` Johan Hovold
2021-05-13 16:29 ` Greg KH
2021-05-14 8:11 ` Johan Hovold
2021-06-10 9:02 ` [PATCH v3 1/4] tty: make tty_get_{char,frame}_size available Jiri Slaby
2021-06-10 9:02 ` [PATCH v3 2/4] mxs-auart: redefine AUART_LINECTRL_WLEN to accept bits count Jiri Slaby
2021-06-10 9:02 ` [PATCH v3 3/4] cypress_m8: switch data_bits to real character bits Jiri Slaby
2021-06-10 9:02 ` [PATCH v3 4/4] tty: make use of tty_get_{char,frame}_size Jiri Slaby
2021-06-10 15:15 ` Alex Elder
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