linux-kernel - Re: [PATCH 2/3] iio: accel: adxl372: Fix push to buffers lost samples

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Date:   Sun, 8 Sep 2019 10:29:11 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Stefan Popa <stefan.popa@...log.com>
Cc:     <Michael.Hennerich@...log.com>, <knaack.h@....de>,
        <lars@...afoo.de>, <pmeerw@...erw.net>,
        <linux-kernel@...r.kernel.org>, <linux-iio@...r.kernel.org>
Subject: Re: [PATCH 2/3] iio: accel: adxl372: Fix push to buffers lost
 samples

On Tue, 3 Sep 2019 12:18:33 +0300
Stefan Popa <stefan.popa@...log.com> wrote:

> One in two sample sets was lost by multiplying fifo_set_size with
> sizeof(u16). Also, the double number of available samples were pushed to
> the iio buffers.
> 
> Signed-off-by: Stefan Popa <stefan.popa@...log.com>
Looks right to me.   Will pick up once we've resolved the questions
on patch 1.

Thanks,

Jonathan

> ---
>  drivers/iio/accel/adxl372.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c
> index adec37b..72d3f45 100644
> --- a/drivers/iio/accel/adxl372.c
> +++ b/drivers/iio/accel/adxl372.c
> @@ -548,8 +548,7 @@ static irqreturn_t adxl372_trigger_handler(int irq, void  *p)
>  			goto err;
>  
>  		/* Each sample is 2 bytes */
> -		for (i = 0; i < fifo_entries * sizeof(u16);
> -		     i += st->fifo_set_size * sizeof(u16))
> +		for (i = 0; i < fifo_entries; i += st->fifo_set_size)
>  			iio_push_to_buffers(indio_dev, &st->fifo_buf[i]);
>  	}
>  err: