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| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2023-09-19 10:51:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-03 14:31:16 +0200 |
| commit | e5d0424ac31154e47bfce857ba908bbe861c7a92 (patch) | |
| tree | e21ee634ce5ef984d509951e60f125642131d8d9 /drivers/tty/tty.h | |
| parent | tty: tty_buffer: use bool for 'restart' in tty_buffer_unlock_exclusive() (diff) | |
| download | linux-e5d0424ac31154e47bfce857ba908bbe861c7a92.tar.xz linux-e5d0424ac31154e47bfce857ba908bbe861c7a92.zip | |
tty: convert THROTTLE constants into enum
And make an explicit constant for zero too. This allows for easier type
checking of the parameter.
Note: tty_struct::flow_change is kept as int because include/tty.h
(tty_struct) doesn't see tty/tty.h (this enum).
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-13-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty.h')
| -rw-r--r-- | drivers/tty/tty.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/tty/tty.h b/drivers/tty/tty.h index 50862f98273e..93cf5ef1e857 100644 --- a/drivers/tty/tty.h +++ b/drivers/tty/tty.h @@ -41,15 +41,20 @@ enum { }; /* Values for tty->flow_change */ -#define TTY_THROTTLE_SAFE 1 -#define TTY_UNTHROTTLE_SAFE 2 +enum tty_flow_change { + TTY_FLOW_NO_CHANGE, + TTY_THROTTLE_SAFE, + TTY_UNTHROTTLE_SAFE, +}; -static inline void __tty_set_flow_change(struct tty_struct *tty, int val) +static inline void __tty_set_flow_change(struct tty_struct *tty, + enum tty_flow_change val) { tty->flow_change = val; } -static inline void tty_set_flow_change(struct tty_struct *tty, int val) +static inline void tty_set_flow_change(struct tty_struct *tty, + enum tty_flow_change val) { tty->flow_change = val; smp_mb(); |