linux-kernel - [PATCH 05/22] iio: replace bitmap_weight with bitmap_weitght

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 10 May 2022 08:47:33 -0700
From:   Yury Norov <yury.norov@...il.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        David Laight <David.Laight@...LAB.COM>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Joe Perches <joe@...ches.com>,
        Julia Lawall <Julia.Lawall@...ia.fr>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Nicholas Piggin <npiggin@...il.com>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Peter Zijlstra <peterz@...radead.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Matti Vaittinen <Matti.Vaittinen@...rohmeurope.com>,
        linux-kernel@...r.kernel.org
Cc:     Yury Norov <yury.norov@...il.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        linux-iio@...r.kernel.org
Subject: [PATCH 05/22] iio: replace bitmap_weight with bitmap_weitght_{eq,le} where appropriate

bitmap_weight_{eq,le} is better than bitmap_weight because it
may return earlier.

CC: Jonathan Cameron <jic23@...nel.org>
CC: Lars-Peter Clausen <lars@...afoo.de>
CC: Michael Hennerich <Michael.Hennerich@...log.com>
CC: linux-iio@...r.kernel.org
CC: linux-kernel@...r.kernel.org
Signed-off-by: Yury Norov <yury.norov@...il.com>
---
 drivers/iio/adc/ad_sigma_delta.c  | 2 +-
 drivers/iio/industrialio-buffer.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index 261a9a6b45e1..6445b591f071 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -525,7 +525,7 @@ static bool ad_sd_validate_scan_mask(struct iio_dev *indio_dev, const unsigned l
 {
 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
 
-	return bitmap_weight(mask, indio_dev->masklength) <= sigma_delta->num_slots;
+	return bitmap_weight_le(mask, indio_dev->masklength, sigma_delta->num_slots);
 }
 
 static const struct iio_buffer_setup_ops ad_sd_buffer_setup_ops = {
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 06141ca27e1f..18d3d756aee1 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -1824,7 +1824,7 @@ void iio_buffers_free_sysfs_and_mask(struct iio_dev *indio_dev)
 bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev,
 	const unsigned long *mask)
 {
-	return bitmap_weight(mask, indio_dev->masklength) == 1;
+	return bitmap_weight_eq(mask, indio_dev->masklength, 1);
 }
 EXPORT_SYMBOL_GPL(iio_validate_scan_mask_onehot);
 
-- 
2.32.0