diff options
| author | Anshul Garg <anshul.g@samsung.com> | 2014-12-13 11:58:23 -0800 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2016-09-10 12:03:06 +0200 |
| commit | 2a3fdd1064c83a11232f4a130e287d9c6259de85 (patch) | |
| tree | be8f6ca2d58243cc8732889df194787683fdbaca /drivers/input/input.c | |
| parent | b3f7f8ff57c1ac6b78224f2eb9236a78a4e47036 (diff) | |
Input: optimize events_per_packet count calculation
This patch avoids unnecessary operations while estimating events per
packet for an input device when event type is not set.
Change-Id: I913be1e5356d5ca7d3047e6b0413069993c2921c
Signed-off-by: Anshul Garg <anshul.g@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Git-commit: baf332c0f1cede26e9c2af6276b36b4c3a36e34a
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Diffstat (limited to 'drivers/input/input.c')
| -rw-r--r-- | drivers/input/input.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c index 8cff276f5..86bef0d7b 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -1933,18 +1933,22 @@ static unsigned int input_estimate_events_per_packet(struct input_dev *dev) events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */ - for (i = 0; i < ABS_CNT; i++) { - if (test_bit(i, dev->absbit)) { - if (input_is_mt_axis(i)) - events += mt_slots; - else - events++; + if (test_bit(EV_ABS, dev->evbit)) { + for (i = 0; i < ABS_CNT; i++) { + if (test_bit(i, dev->absbit)) { + if (input_is_mt_axis(i)) + events += mt_slots; + else + events++; + } } } - for (i = 0; i < REL_CNT; i++) - if (test_bit(i, dev->relbit)) - events++; + if (test_bit(EV_REL, dev->evbit)) { + for (i = 0; i < REL_CNT; i++) + if (test_bit(i, dev->relbit)) + events++; + } /* Make room for KEY and MSC events */ events += 7; |