From: Jonathan Cameron <jic23@kernel.org>
To: Arnd Bergmann <arnd@arndb.de>, Lee Jones <lee.jones@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org,
Denis Carikli <denis@eukrea.com>,
Markus Pargmann <mpa@pengutronix.de>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald <pmeerw@pmeerw.net>,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iio: adc/imx25-gcq: move incorrect do_div
Date: Sat, 13 Feb 2016 13:45:59 +0000 [thread overview]
Message-ID: <56BF3397.1040006@kernel.org> (raw)
In-Reply-To: <1455275748-999115-1-git-send-email-arnd@arndb.de>
On 12/02/16 11:15, Arnd Bergmann wrote:
> The newly added driver uses do_div() to device a 32-bit number, which now
> provokes a warning:
>
> drivers/iio/adc/fsl-imx25-gcq.c: In function 'mx25_gcq_setup_cfgs':
> include/asm-generic/div64.h:207:28: warning: comparison of distinct pointer types lacks a cast
> (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
>
> This replaces the do_div() call with a straight division operator.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Fixes: 6df2e98c3ea5 ("iio: adc: Add imx25-gcq ADC driver")
Acked-by: Jonathan Cameron <jic23@kernel.org>
oops.
> ---
> drivers/iio/adc/fsl-imx25-gcq.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/fsl-imx25-gcq.c b/drivers/iio/adc/fsl-imx25-gcq.c
> index 2fd192735d5b..72b32c1ab257 100644
> --- a/drivers/iio/adc/fsl-imx25-gcq.c
> +++ b/drivers/iio/adc/fsl-imx25-gcq.c
> @@ -233,7 +233,7 @@ static int mx25_gcq_setup_cfgs(struct platform_device *pdev,
> priv->channel_vref_mv[reg] =
> regulator_get_voltage(priv->vref[refp]);
> /* Conversion from uV to mV */
> - do_div(priv->channel_vref_mv[reg], 1000);
> + priv->channel_vref_mv[reg] /= 1000;
> break;
> case MX25_ADC_REFP_INT:
> priv->channel_vref_mv[reg] = 2500;
>
next prev parent reply other threads:[~2016-02-13 13:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-12 11:15 [PATCH] iio: adc/imx25-gcq: move incorrect do_div Arnd Bergmann
2016-02-13 13:45 ` Jonathan Cameron [this message]
2016-02-15 9:59 ` Markus Pargmann
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