From: Jan Kara <jack@suse.cz>
To: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: gregkh@linuxfoundation.org, linux-serial@vger.kernel.org,
linux-kernel@vger.kernel.org, Jan Kara <jack@suse.com>
Subject: Re: [PATCH 01/17] tty: deprecate tty_write_message()
Date: Tue, 21 Nov 2023 15:41:16 +0100 [thread overview]
Message-ID: <20231121144116.4kvwinm2vjevmqcy@quack3> (raw)
In-Reply-To: <20231121092258.9334-2-jirislaby@kernel.org>
On Tue 21-11-23 10:22:42, Jiri Slaby (SUSE) wrote:
> tty_write_message() has only one user: quotas. In particular, there the
> use depends on CONFIG_PRINT_QUOTA_WARNING. And that is deprecated and
> marked as BROKEN already too.
>
> So make tty_write_message() dependent on that very config option. This
> action in fact drops tty_write_message() from the vmlinux binary. Good
> riddance.
>
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
> Cc: Jan Kara <jack@suse.com>
Sure, that was indeed a hack. Feel free to add:
Acked-by: Jan Kara <jack@suse.cz>
Honza
> ---
> drivers/tty/tty_io.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
> index 06414e43e0b5..ee5a90f9adb5 100644
> --- a/drivers/tty/tty_io.c
> +++ b/drivers/tty/tty_io.c
> @@ -1047,6 +1047,7 @@ static ssize_t iterate_tty_write(struct tty_ldisc *ld, struct tty_struct *tty,
> return ret;
> }
>
> +#ifdef CONFIG_PRINT_QUOTA_WARNING
> /**
> * tty_write_message - write a message to a certain tty, not just the console.
> * @tty: the destination tty_struct
> @@ -1057,6 +1058,8 @@ static ssize_t iterate_tty_write(struct tty_ldisc *ld, struct tty_struct *tty,
> * needed.
> *
> * We must still hold the BTM and test the CLOSING flag for the moment.
> + *
> + * This function is DEPRECATED, do not use in new code.
> */
> void tty_write_message(struct tty_struct *tty, char *msg)
> {
> @@ -1069,6 +1072,7 @@ void tty_write_message(struct tty_struct *tty, char *msg)
> tty_write_unlock(tty);
> }
> }
> +#endif
>
> static ssize_t file_tty_write(struct file *file, struct kiocb *iocb, struct iov_iter *from)
> {
> --
> 2.42.1
>
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
next prev parent reply other threads:[~2023-11-21 14:41 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-21 9:22 [PATCH 00/17] tty: small cleanups and fixes Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 01/17] tty: deprecate tty_write_message() Jiri Slaby (SUSE)
2023-11-21 14:41 ` Jan Kara [this message]
2023-11-21 9:22 ` [PATCH 02/17] tty: remove unneeded mbz from tiocsti() Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 03/17] tty: fix tty_operations types in documentation Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 04/17] tty: move locking docs out of Returns for functions in tty.h Jiri Slaby (SUSE)
2023-11-21 9:48 ` Ilpo Järvinen
2023-11-22 6:45 ` Jiri Slaby
2023-11-22 6:53 ` Jiri Slaby
2023-11-22 10:26 ` Ilpo Järvinen
2023-11-21 9:22 ` [PATCH 05/17] tty: amiserial: return from receive_chars() without goto Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 06/17] tty: amiserial: use bool and rename overrun flag in receive_chars() Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 07/17] tty: ehv_bytecha: use memcpy_and_pad() in local_ev_byte_channel_send() Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 08/17] tty: goldfish: drop unneeded temporary variables Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 09/17] tty: hso: don't emit load/unload info to the log Jiri Slaby (SUSE)
2023-11-21 22:30 ` Jakub Kicinski
2023-11-21 9:22 ` [PATCH 10/17] tty: hso: don't initialize global serial_table Jiri Slaby (SUSE)
2023-11-21 22:30 ` Jakub Kicinski
2023-11-21 9:22 ` [PATCH 11/17] tty: hvc_console: use flexible array for outbuf Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 12/17] tty: nozomi: remove unused debugging DUMP() Jiri Slaby (SUSE)
2023-11-21 9:22 ` [PATCH 13/17] tty: srmcons: use 'buf' directly in srmcons_do_write() Jiri Slaby (SUSE)
2023-11-21 17:47 ` Richard Henderson
2023-11-21 9:22 ` [PATCH 14/17] tty: srmcons: use 'count' " Jiri Slaby (SUSE)
2023-11-21 15:21 ` Ilpo Järvinen
2023-11-21 17:48 ` Richard Henderson
2023-11-22 6:26 ` Jiri Slaby
2023-11-21 9:22 ` [PATCH 15/17] tty: srmcons: make srmcons_do_write() return void Jiri Slaby (SUSE)
2023-11-21 17:48 ` Richard Henderson
2023-11-21 9:22 ` [PATCH 16/17] tty: srmcons: switch need_cr to bool Jiri Slaby (SUSE)
2023-11-21 17:49 ` Richard Henderson
2023-11-21 9:22 ` [PATCH 17/17] tty: srmcons: make 'str_cr' const and non-array Jiri Slaby (SUSE)
2023-11-21 15:28 ` Ilpo Järvinen
2023-11-22 6:32 ` Jiri Slaby
2023-11-21 17:52 ` Richard Henderson
2023-11-21 17:58 ` Richard Henderson
2023-11-23 20:19 ` [PATCH 00/17] tty: small cleanups and fixes Greg KH
2023-11-27 9:30 ` Jiri Slaby
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