2022-12-01 03:59:34

by ye.xingchen

Subject: [PATCH] iio: adc: at91-sama5d2_adc: use sysfs_emit() to instead of scnprintf()

From: ye xingchen <[email protected]>

Replace the open-code with sysfs_emit() to simplify the code.

Signed-off-by: ye xingchen <[email protected]>
---
drivers/iio/adc/at91-sama5d2_adc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index ed4f8501bda8..50d02e5fc6fc 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -2181,7 +2181,7 @@ static ssize_t at91_adc_get_fifo_state(struct device *dev,
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct at91_adc_state *st = iio_priv(indio_dev);

- return scnprintf(buf, PAGE_SIZE, "%d\n", !!st->dma_st.dma_chan);
+ return sysfs_emit(buf, "%d\n", !!st->dma_st.dma_chan);
}

static ssize_t at91_adc_get_watermark(struct device *dev,
@@ -2190,7 +2190,7 @@ static ssize_t at91_adc_get_watermark(struct device *dev,
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct at91_adc_state *st = iio_priv(indio_dev);

- return scnprintf(buf, PAGE_SIZE, "%d\n", st->dma_st.watermark);
+ return sysfs_emit(buf, "%d\n", st->dma_st.watermark);
}

static IIO_DEVICE_ATTR(hwfifo_enabled, 0444,
--
2.25.1

2022-12-04 16:03:07

by Jonathan Cameron

Subject: Re: [PATCH] iio: adc: at91-sama5d2_adc: use sysfs_emit() to instead of scnprintf()

On Thu, 1 Dec 2022 11:42:33 +0800 (CST)
<[email protected]> wrote:

> From: ye xingchen <[email protected]>
>
> Replace the open-code with sysfs_emit() to simplify the code.
>
> Signed-off-by: ye xingchen <[email protected]>
Applied.

Thanks,

Jonathan

> ---
> drivers/iio/adc/at91-sama5d2_adc.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
> index ed4f8501bda8..50d02e5fc6fc 100644
> --- a/drivers/iio/adc/at91-sama5d2_adc.c
> +++ b/drivers/iio/adc/at91-sama5d2_adc.c
> @@ -2181,7 +2181,7 @@ static ssize_t at91_adc_get_fifo_state(struct device *dev,
> struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> struct at91_adc_state *st = iio_priv(indio_dev);
>
> - return scnprintf(buf, PAGE_SIZE, "%d\n", !!st->dma_st.dma_chan);
> + return sysfs_emit(buf, "%d\n", !!st->dma_st.dma_chan);
> }
>
> static ssize_t at91_adc_get_watermark(struct device *dev,
> @@ -2190,7 +2190,7 @@ static ssize_t at91_adc_get_watermark(struct device *dev,
> struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> struct at91_adc_state *st = iio_priv(indio_dev);
>
> - return scnprintf(buf, PAGE_SIZE, "%d\n", st->dma_st.watermark);
> + return sysfs_emit(buf, "%d\n", st->dma_st.watermark);
> }
>
> static IIO_DEVICE_ATTR(hwfifo_enabled, 0444,