diff mbox series

[28/49] iio: replace bitmap_weight() with bitmap_weight_{eq,gt} where appropriate

Message ID 20220210224933.379149-29-yury.norov@gmail.com (mailing list archive)
State Not Applicable
Headers show
Series [01/49] net: dsa: don't use bitmap_weight() in b53_arl_read() | expand

Commit Message

Yury Norov Feb. 10, 2022, 10:49 p.m. UTC
drivers/iio calls bitmap_weight() to compare the weight of bitmap with
a given number. We can do it more efficiently with bitmap_weight_eq
because conditional bitmap_weight may stop traversing the bitmap earlier,
as soon as condition is (or can't be) met.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
 drivers/iio/industrialio-trigger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index f504ed351b3e..98c54022fecf 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -331,7 +331,7 @@  int iio_trigger_detach_poll_func(struct iio_trigger *trig,
 {
 	struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(pf->indio_dev);
 	bool no_other_users =
-		bitmap_weight(trig->pool, CONFIG_IIO_CONSUMERS_PER_TRIGGER) == 1;
+		bitmap_weight_eq(trig->pool, CONFIG_IIO_CONSUMERS_PER_TRIGGER, 1);
 	int ret = 0;
 
 	if (trig->ops && trig->ops->set_trigger_state && no_other_users) {