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path: root/drivers/tty/tty.h
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Diffstat (limited to 'drivers/tty/tty.h')
-rw-r--r--drivers/tty/tty.h13
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();