linux-kernel - RE: [PATCH 04/16] iio: adc: max1027: Lower conversion time

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]

Message-ID: <SJ0PR03MB63596BA4C8C798F61D1F086E99C19@SJ0PR03MB6359.namprd03.prod.outlook.com>
Date:   Fri, 20 Aug 2021 07:12:22 +0000
From:   "Sa, Nuno" <Nuno.Sa@...log.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>
CC:     Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 04/16] iio: adc: max1027: Lower conversion time



> -----Original Message-----
> From: Miquel Raynal <miquel.raynal@...tlin.com>
> Sent: Wednesday, August 18, 2021 1:11 PM
> To: Jonathan Cameron <jic23@...nel.org>; Lars-Peter Clausen
> <lars@...afoo.de>
> Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>; linux-
> iio@...r.kernel.org; linux-kernel@...r.kernel.org; Miquel Raynal
> <miquel.raynal@...tlin.com>
> Subject: [PATCH 04/16] iio: adc: max1027: Lower conversion time
> 
> [External]
> 
> When only a few channels are requested, the core will request all of
> them as long as ->available_scan_masks is present, thus reducing the
> impact of any driver side optimization to avoid converting the
> unneeded
> channels.
> 
> Do not share this bitmap with the core, which is optional anyway.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
> ---
>  drivers/iio/adc/max1027.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
> index 8ab660f596b5..d79dabf20567 100644
> --- a/drivers/iio/adc/max1027.c
> +++ b/drivers/iio/adc/max1027.c
> @@ -457,7 +457,6 @@ static int max1027_probe(struct spi_device
> *spi)
>  	indio_dev->modes = INDIO_DIRECT_MODE;
>  	indio_dev->channels = st->info->channels;
>  	indio_dev->num_channels = st->info->num_channels;
> -	indio_dev->available_scan_masks = st->info-
> >available_scan_masks;
> 
>  	st->buffer = devm_kmalloc_array(&indio_dev->dev,
>  				  indio_dev->num_channels, 2,
> --
> 2.27.0

Reviewed-by: Nuno Sá <nuno.sa@...log.com>