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From: Jonathan Cameron <jic23@kernel.org>
To: sayli karnik <karniksayli1995@gmail.com>,
	outreachy-kernel@googlegroups.com
Cc: Hartmut Knaack <knaack.h@gmx.de>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
	linux-iio@vger.kernel.org
Subject: Re: [PATCH v2] iio: bmi160_core: Fix sparse warning due to incorrect type in assignment
Date: Tue, 11 Oct 2016 19:43:01 +0100	[thread overview]
Message-ID: <27fa1ed2-54c8-df68-2b46-bdfd086d3bc3@kernel.org> (raw)
In-Reply-To: <20161011113721.GA26944@sayli-HP-15-Notebook-PC>

On 11/10/16 12:37, sayli karnik wrote:
> There is a type mismatch between the buffer which is of type s16 and the
> samples stored, which are declared as __le16.
> 
> Fix the following sparse warning:
> drivers/iio/imu/bmi160/bmi160_core.c:411:26: warning: incorrect type
> in assignment (different base types)
> 
> drivers/iio/imu/bmi160/bmi160_core.c:411:26: expected signed short
> [signed] [short] [explicitly-signed] <noident>
> drivers/iio/imu/bmi160/bmi160_core.c:411:26: got restricted __le16
> [addressable] [usertype] sample
> 
> This is a cosmetic-type patch since it does not alter code behaviour.
> The le16 is going into a 16bit buf element, and is labelled as IIO_LE in the
> channel buffer definition.
> 
> Signed-off-by: sayli karnik <karniksayli1995@gmail.com>
Applied to the togreg branch of iio.git - initially pushed out
as testing for the autobuilders to play with it.

Thanks,

Jonathan
> ---
> Changes in v2:
> Moved comment above declaration of buf array
> 
>  drivers/iio/imu/bmi160/bmi160_core.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c
> index e0251b8..5355507 100644
> --- a/drivers/iio/imu/bmi160/bmi160_core.c
> +++ b/drivers/iio/imu/bmi160/bmi160_core.c
> @@ -398,7 +398,8 @@ static irqreturn_t bmi160_trigger_handler(int irq, void *p)
>  	struct iio_poll_func *pf = p;
>  	struct iio_dev *indio_dev = pf->indio_dev;
>  	struct bmi160_data *data = iio_priv(indio_dev);
> -	s16 buf[16]; /* 3 sens x 3 axis x s16 + 3 x s16 pad + 4 x s16 tstamp */
> +	__le16 buf[16];
> +	/* 3 sens x 3 axis x __le16 + 3 x __le16 pad + 4 x __le16 tstamp */
>  	int i, ret, j = 0, base = BMI160_REG_DATA_MAGN_XOUT_L;
>  	__le16 sample;
>  
> 


      reply	other threads:[~2016-10-11 18:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-11 11:37 [PATCH v2] iio: bmi160_core: Fix sparse warning due to incorrect type in assignment sayli karnik
2016-10-11 18:43 ` Jonathan Cameron [this message]

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