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Message-ID: <CAEnQRZDgXj85OTQAoEpij_3bSUnmcx1owNyeg10WCmiBGURURg@mail.gmail.com>
Date: Tue, 12 Sep 2017 10:53:26 +0300
From: Daniel Baluta <daniel.baluta@...il.com>
To: Himanshi Jain <himshijain.hj@...il.com>
Cc: outreachy-kernel <outreachy-kernel@...glegroups.com>,
Lars-Peter Clausen <lars@...afoo.de>,
"Hennerich, Michael" <Michael.Hennerich@...log.com>,
Jonathan Cameron <jic23@...nel.org>,
Hartmut Knaack <knaack.h@....de>,
Peter Meerwald <pmeerw@...erw.net>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
driverdev <devel@...verdev.osuosl.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
nick.desaulniers@...il.com
Subject: Re: [Outreachy kernel] [PATCH] Fixed IIO_DEVICE_ATTR_NAMED API to
take name as a string and added "" around names
Hi Himanshi,
On Tue, Sep 12, 2017 at 1:43 AM, Himanshi Jain <himshijain.hj@...il.com> wrote:
> Fixed IIO_DEVICE_ATTR_NAMED API to take name as a
> string instead of implicit conversion to string using
> preprocessors. Added double quotes around names in
> existing usage of IIO_DEVICE_ATTR_NAMED.
Always use imperative mood in commit subject (Fix instead of Fixed).
The subject should contain a tag, which describes the subsytem/files affected.
I would split this patch into:
1) sysfs: iio: Introduce *_ATTR_NAMED
and explain here why do we need __ATTR_NAMED and IIO_ATTR_NAMED
2) iio: Use new IIO_DEVICE_ATTR_NAMED API
But of course, lets wait to see Lars and Jonathan's opinions.
thanks,
Daniel.
>
> Signed-off-by: Himanshi Jain <himshijain.hj@...il.com>
> ---
> drivers/iio/adc/ad7793.c | 2 +-
> drivers/staging/iio/adc/ad7192.c | 2 +-
> drivers/staging/iio/adc/ad7280a.c | 4 ++--
> include/linux/iio/sysfs.h | 6 +++++-
> include/linux/sysfs.h | 7 +++++++
> 5 files changed, 16 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
> index e6706a0..d74e324 100644
> --- a/drivers/iio/adc/ad7793.c
> +++ b/drivers/iio/adc/ad7793.c
> @@ -420,7 +420,7 @@ static ssize_t ad7793_show_scale_available(struct device *dev,
> }
>
> static IIO_DEVICE_ATTR_NAMED(in_m_in_scale_available,
> - in_voltage-voltage_scale_available, S_IRUGO,
> + "in_voltage-voltage_scale_available", S_IRUGO,
> ad7793_show_scale_available, NULL, 0);
>
> static struct attribute *ad7793_attributes[] = {
> diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
> index d11c6de..daff38c 100644
> --- a/drivers/staging/iio/adc/ad7192.c
> +++ b/drivers/staging/iio/adc/ad7192.c
> @@ -341,7 +341,7 @@ static int ad7192_setup(struct ad7192_state *st,
> }
>
> static IIO_DEVICE_ATTR_NAMED(in_v_m_v_scale_available,
> - in_voltage-voltage_scale_available,
> + "in_voltage-voltage_scale_available",
> 0444, ad7192_show_scale_available, NULL, 0);
>
> static IIO_DEVICE_ATTR(in_voltage_scale_available, 0444,
> diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
> index f85dde9..fd32e9a 100644
> --- a/drivers/staging/iio/adc/ad7280a.c
> +++ b/drivers/staging/iio/adc/ad7280a.c
> @@ -750,14 +750,14 @@ static irqreturn_t ad7280_event_handler(int irq, void *private)
> }
>
> static IIO_DEVICE_ATTR_NAMED(in_thresh_low_value,
> - in_voltage-voltage_thresh_low_value,
> + "in_voltage-voltage_thresh_low_value",
> 0644,
> ad7280_read_channel_config,
> ad7280_write_channel_config,
> AD7280A_CELL_UNDERVOLTAGE);
>
> static IIO_DEVICE_ATTR_NAMED(in_thresh_high_value,
> - in_voltage-voltage_thresh_high_value,
> + "in_voltage-voltage_thresh_high_value",
> 0644,
> ad7280_read_channel_config,
> ad7280_write_channel_config,
> diff --git a/include/linux/iio/sysfs.h b/include/linux/iio/sysfs.h
> index ce9426c..49c81a4 100644
> --- a/include/linux/iio/sysfs.h
> +++ b/include/linux/iio/sysfs.h
> @@ -55,6 +55,10 @@ struct iio_const_attr {
> { .dev_attr = __ATTR(_name, _mode, _show, _store), \
> .address = _addr }
>
> +#define IIO_ATTR_NAMED(_name, _mode, _show, _store, _addr) \
> + { .dev_attr = __ATTR_NAMED(_name, _mode, _show, _store), \
> + .address = _addr }
> +
> #define IIO_ATTR_RO(_name, _addr) \
> { .dev_attr = __ATTR_RO(_name), \
> .address = _addr }
> @@ -85,7 +89,7 @@ struct iio_const_attr {
>
> #define IIO_DEVICE_ATTR_NAMED(_vname, _name, _mode, _show, _store, _addr) \
> struct iio_dev_attr iio_dev_attr_##_vname \
> - = IIO_ATTR(_name, _mode, _show, _store, _addr)
> + = IIO_ATTR_NAMED(_name, _mode, _show, _store, _addr)
>
> #define IIO_CONST_ATTR(_name, _string) \
> struct iio_const_attr iio_const_attr_##_name \
> diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
> index aa02c32..20321cf 100644
> --- a/include/linux/sysfs.h
> +++ b/include/linux/sysfs.h
> @@ -104,6 +104,13 @@ struct attribute_group {
> .store = _store, \
> }
>
> +#define __ATTR_NAMED(_name, _mode, _show, _store) { \
> + .attr = {.name = _name, \
> + .mode = VERIFY_OCTAL_PERMISSIONS(_mode) }, \
> + .show = _show, \
> + .store = _store, \
> +}
> +
> #define __ATTR_PREALLOC(_name, _mode, _show, _store) { \
> .attr = {.name = __stringify(_name), \
> .mode = SYSFS_PREALLOC | VERIFY_OCTAL_PERMISSIONS(_mode) },\
> --
> 1.9.1
>
> --
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