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tty: make tty const in tty_get_baud_rate()

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After commit 87888fb9ac ("tty: Remove baudrate dead code & make
ktermios params const"), the 'tty' parameter is only read in
tty_get_baud_rate(). Therefore, we can make 'tty' accepted in the
function 'const' for clarity.

The "the terminal bit flags may be updated." part of the
tty_get_baud_rate()'s kernel-doc is dropped as it is no longer true.
Because of the same commit above. And it was misplaced anyway.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231127123713.14504-1-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2023-11-27 13:37:09 +01:00 committed by Greg Kroah-Hartman
parent ab58841ab9
commit a3db64c575
1 changed files with 2 additions and 3 deletions
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5
include/linux/tty.h
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@ -440,10 +440,9 @@ void tty_encode_baud_rate(struct tty_struct *tty, speed_t ibaud,
*
* Returns: the baud rate as an integer for this terminal
*
* Locking: The termios lock must be held by the caller and the terminal bit
* flags may be updated.
* Locking: The termios lock must be held by the caller.
*/
static inline speed_t tty_get_baud_rate(struct tty_struct *tty)
static inline speed_t tty_get_baud_rate(const struct tty_struct *tty)
{
return tty_termios_baud_rate(&tty->termios);
}