diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2020-10-29 12:32:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-04 16:43:39 +0100 |
| commit | 2389cdc36007ba28ebe6640d7dd5e3494318a909 (patch) | |
| tree | 40849526e88aa28428a573b9827d32530af848ac /drivers/tty/vt | |
| parent | 6dee84d6bed747653914298a8913e91391a2ce10 (diff) | |
vt: keyboard, use find_next_bit in kbd_match
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@suse.cz>
Link: https://lore.kernel.org/r/20201029113222.32640-16-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/vt')
| -rw-r--r-- | drivers/tty/vt/keyboard.c | 14 |
1 files 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; |