Instead of a 'for' loop with 'test_bit's to find a bit in a range, use
find_next_bit to achieve the same in a simpler and faster manner.
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/tty/vt/keyboard.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index dea2f25a5d9f..149f1791d7ec 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -1535,18 +1535,16 @@ static void kbd_event(struct input_handle *handle, unsigned int event_type,
static bool kbd_match(struct input_handler *handler, struct input_dev *dev)
{
- int i;
-
if (test_bit(EV_SND, dev->evbit))
return true;
if (test_bit(EV_KEY, dev->evbit)) {
- for (i = KEY_RESERVED; i < BTN_MISC; i++)
- if (test_bit(i, dev->keybit))
- return true;
- for (i = KEY_BRL_DOT1; i <= KEY_BRL_DOT10; i++)
- if (test_bit(i, dev->keybit))
- return true;
+ if (find_next_bit(dev->keybit, BTN_MISC, KEY_RESERVED) <
+ BTN_MISC)
+ return true;
+ if (find_next_bit(dev->keybit, KEY_BRL_DOT10 + 1,
+ KEY_BRL_DOT1) <= KEY_BRL_DOT10)
+ return true;
}
return false;
--
2.29.1
