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Mon, 15 Dec 2025 16:23:03 -0800 (PST) Received: from localhost ([2601:346:0:79bd:6b0:1f10:bc87:9bd7]) by smtp.gmail.com with ESMTPSA id 00721157ae682-78e74a28c67sm33231597b3.47.2025.12.15.16.23.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Dec 2025 16:23:02 -0800 (PST) Date: Mon, 15 Dec 2025 19:23:02 -0500 From: Yury Norov To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , David Lechner , Nuno =?iso-8859-1?Q?S=E1?= , Andy Shevchenko , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] iio: adc: ad7606_spi: use bitmap_full() in ad7606_spi_update_scan_mode() Message-ID: References: <20251216001808.333053-1-yury.norov@gmail.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251216001808.333053-1-yury.norov@gmail.com> On Mon, Dec 15, 2025 at 07:18:06PM -0500, Yury Norov (NVIDIA) wrote: > bitmap_empty() is more verbose and efficient, as it stops traversing > scan_mask as soon as the 1st set bit found. Ah, please read this as: bitmap_full() is more verbose and efficient, as it stops traversing scan_mask as soon as the 1st unset bit found. Sorry for miswording the commit message. > Signed-off-by: Yury Norov (NVIDIA) > --- > drivers/iio/adc/ad7606_spi.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/iio/adc/ad7606_spi.c b/drivers/iio/adc/ad7606_spi.c > index f28e4ca37707..7e17ccbcedd0 100644 > --- a/drivers/iio/adc/ad7606_spi.c > +++ b/drivers/iio/adc/ad7606_spi.c > @@ -345,7 +345,7 @@ static int ad7606_spi_update_scan_mode(struct iio_dev *indio_dev, > * has no way of demuxing the data to filter out unwanted > * channels. > */ > - if (bitmap_weight(scan_mask, num_adc_ch) != num_adc_ch) > + if (!bitmap_full(scan_mask, num_adc_ch)) > return -EINVAL; > } > > -- > 2.43.0