From 9cf0b618599487f456ef5596dd30b5c162291e3c Mon Sep 17 00:00:00 2001 From: Joe Simmons-Talbott Date: Wed, 1 Jun 2022 14:54:14 -0400 Subject: iio: Use octal permissions and DEVICE_ATTR_{RO,RW}. As reported by checkpatch.pl. Where possible use DEVICE_ATTR_RO(), DEVICE_ATTR_RW(), and __ATTR_RO(). Change function names to be _show() for read and _store() for write. Suggested-by: Joe Perches Suggested-by: Andy Shevchenko Signed-off-by: Joe Simmons-Talbott Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220601185414.251571-1-joetalbott@gmail.com Signed-off-by: Jonathan Cameron --- drivers/iio/industrialio-buffer.c | 56 ++++++++++++++------------------------ drivers/iio/industrialio-core.c | 33 ++++++++++------------ drivers/iio/industrialio-trigger.c | 29 ++++++++------------ 3 files changed, 48 insertions(+), 70 deletions(-) diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 06141ca27e1f..3d2b7712a8e6 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -630,18 +630,16 @@ static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev, return ret; } -static ssize_t iio_buffer_read_length(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t length_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer; return sysfs_emit(buf, "%d\n", buffer->length); } -static ssize_t iio_buffer_write_length(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) +static ssize_t length_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer; @@ -672,9 +670,8 @@ out: return ret ? ret : len; } -static ssize_t iio_buffer_show_enable(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t enable_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer; @@ -1292,10 +1289,8 @@ void iio_disable_all_buffers(struct iio_dev *indio_dev) iio_buffer_deactivate_all(indio_dev); } -static ssize_t iio_buffer_store_enable(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) +static ssize_t enable_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t len) { int ret; bool requested_state; @@ -1325,19 +1320,17 @@ done: return (ret < 0) ? ret : len; } -static ssize_t iio_buffer_show_watermark(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t watermark_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer; return sysfs_emit(buf, "%u\n", buffer->watermark); } -static ssize_t iio_buffer_store_watermark(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) +static ssize_t watermark_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer; @@ -1369,9 +1362,8 @@ out: return ret ? ret : len; } -static ssize_t iio_dma_show_data_available(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t data_available_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer; @@ -1394,18 +1386,12 @@ static ssize_t direction_show(struct device *dev, } } -static DEVICE_ATTR(length, S_IRUGO | S_IWUSR, iio_buffer_read_length, - iio_buffer_write_length); -static struct device_attribute dev_attr_length_ro = __ATTR(length, - S_IRUGO, iio_buffer_read_length, NULL); -static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, - iio_buffer_show_enable, iio_buffer_store_enable); -static DEVICE_ATTR(watermark, S_IRUGO | S_IWUSR, - iio_buffer_show_watermark, iio_buffer_store_watermark); -static struct device_attribute dev_attr_watermark_ro = __ATTR(watermark, - S_IRUGO, iio_buffer_show_watermark, NULL); -static DEVICE_ATTR(data_available, S_IRUGO, - iio_dma_show_data_available, NULL); +static DEVICE_ATTR_RW(length); +static struct device_attribute dev_attr_length_ro = __ATTR_RO(length); +static DEVICE_ATTR_RW(enable); +static DEVICE_ATTR_RW(watermark); +static struct device_attribute dev_attr_watermark_ro = __ATTR_RO(watermark); +static DEVICE_ATTR_RO(data_available); static DEVICE_ATTR_RO(direction); /* diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 0703c8c7c180..dc3e1cb9bfbd 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -1104,12 +1104,12 @@ int __iio_device_attr_init(struct device_attribute *dev_attr, dev_attr->attr.name = name; if (readfunc) { - dev_attr->attr.mode |= S_IRUGO; + dev_attr->attr.mode |= 0444; dev_attr->show = readfunc; } if (writefunc) { - dev_attr->attr.mode |= S_IWUSR; + dev_attr->attr.mode |= 0200; dev_attr->store = writefunc; } @@ -1383,29 +1383,27 @@ void iio_free_chan_devattr_list(struct list_head *attr_list) } } -static ssize_t iio_show_dev_name(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t name_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); return sysfs_emit(buf, "%s\n", indio_dev->name); } -static DEVICE_ATTR(name, S_IRUGO, iio_show_dev_name, NULL); +static DEVICE_ATTR_RO(name); -static ssize_t iio_show_dev_label(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t label_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); return sysfs_emit(buf, "%s\n", indio_dev->label); } -static DEVICE_ATTR(label, S_IRUGO, iio_show_dev_label, NULL); +static DEVICE_ATTR_RO(label); -static ssize_t iio_show_timestamp_clock(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t current_timestamp_clock_show(struct device *dev, + struct device_attribute *attr, + char *buf) { const struct iio_dev *indio_dev = dev_to_iio_dev(dev); const clockid_t clk = iio_device_get_clock(indio_dev); @@ -1449,9 +1447,9 @@ static ssize_t iio_show_timestamp_clock(struct device *dev, return sz; } -static ssize_t iio_store_timestamp_clock(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) +static ssize_t current_timestamp_clock_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) { clockid_t clk; int ret; @@ -1499,8 +1497,7 @@ int iio_device_register_sysfs_group(struct iio_dev *indio_dev, return 0; } -static DEVICE_ATTR(current_timestamp_clock, S_IRUGO | S_IWUSR, - iio_show_timestamp_clock, iio_store_timestamp_clock); +static DEVICE_ATTR_RW(current_timestamp_clock); static int iio_device_register_sysfs(struct iio_dev *indio_dev) { diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c index 1e43e93b5816..d89bf90650d5 100644 --- a/drivers/iio/industrialio-trigger.c +++ b/drivers/iio/industrialio-trigger.c @@ -37,7 +37,7 @@ static LIST_HEAD(iio_trigger_list); static DEFINE_MUTEX(iio_trigger_list_lock); /** - * iio_trigger_read_name() - retrieve useful identifying name + * name_show() - retrieve useful identifying name * @dev: device associated with the iio_trigger * @attr: pointer to the device_attribute structure that is * being processed @@ -46,15 +46,14 @@ static DEFINE_MUTEX(iio_trigger_list_lock); * Return: a negative number on failure or the number of written * characters on success. */ -static ssize_t iio_trigger_read_name(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t name_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct iio_trigger *trig = to_iio_trigger(dev); return sysfs_emit(buf, "%s\n", trig->name); } -static DEVICE_ATTR(name, S_IRUGO, iio_trigger_read_name, NULL); +static DEVICE_ATTR_RO(name); static struct attribute *iio_trig_dev_attrs[] = { &dev_attr_name.attr, @@ -395,7 +394,7 @@ void iio_dealloc_pollfunc(struct iio_poll_func *pf) EXPORT_SYMBOL_GPL(iio_dealloc_pollfunc); /** - * iio_trigger_read_current() - trigger consumer sysfs query current trigger + * current_trigger_show() - trigger consumer sysfs query current trigger * @dev: device associated with an industrial I/O device * @attr: pointer to the device_attribute structure that * is being processed @@ -407,9 +406,8 @@ EXPORT_SYMBOL_GPL(iio_dealloc_pollfunc); * Return: a negative number on failure, the number of characters written * on success or 0 if no trigger is available */ -static ssize_t iio_trigger_read_current(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t current_trigger_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); @@ -419,7 +417,7 @@ static ssize_t iio_trigger_read_current(struct device *dev, } /** - * iio_trigger_write_current() - trigger consumer sysfs set current trigger + * current_trigger_store() - trigger consumer sysfs set current trigger * @dev: device associated with an industrial I/O device * @attr: device attribute that is being processed * @buf: string buffer that holds the name of the trigger @@ -432,10 +430,9 @@ static ssize_t iio_trigger_read_current(struct device *dev, * Return: negative error code on failure or length of the buffer * on success */ -static ssize_t iio_trigger_write_current(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) +static ssize_t current_trigger_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev); @@ -494,9 +491,7 @@ out_trigger_put: return ret; } -static DEVICE_ATTR(current_trigger, S_IRUGO | S_IWUSR, - iio_trigger_read_current, - iio_trigger_write_current); +static DEVICE_ATTR_RW(current_trigger); static struct attribute *iio_trigger_consumer_attrs[] = { &dev_attr_current_trigger.attr, -- cgit v1.2.3