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Subject[PATCH 16/36] PPS: convert class code to use dev_groups
Date
The dev_attrs field of struct class is going away soon, dev_groups
should be used instead. This converts the pps class code to use the
correct field.

Cc: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

Rodolfo, feel free to take this through your tree, or ACK it and I can take it
through mine.

drivers/pps/pps.c | 2 +-
drivers/pps/sysfs.c | 55 +++++++++++++++++++++++++++++-----------------
include/linux/pps_kernel.h | 2 +-
3 files changed, 37 insertions(+), 22 deletions(-)

diff --git a/drivers/pps/pps.c b/drivers/pps/pps.c
index 7173e3ad..2f07cd61 100644
--- a/drivers/pps/pps.c
+++ b/drivers/pps/pps.c
@@ -406,7 +406,7 @@ static int __init pps_init(void)
pr_err("failed to allocate class\n");
return PTR_ERR(pps_class);
}
- pps_class->dev_attrs = pps_attrs;
+ pps_class->dev_groups = pps_groups;

err = alloc_chrdev_region(&pps_devt, 0, PPS_MAX_SOURCES, "pps");
if (err < 0) {
diff --git a/drivers/pps/sysfs.c b/drivers/pps/sysfs.c
index ef0978c7..aefb75d6 100644
--- a/drivers/pps/sysfs.c
+++ b/drivers/pps/sysfs.c
@@ -29,8 +29,8 @@
* Attribute functions
*/

-static ssize_t pps_show_assert(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t assert_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct pps_device *pps = dev_get_drvdata(dev);

@@ -41,9 +41,10 @@ static ssize_t pps_show_assert(struct device *dev,
(long long) pps->assert_tu.sec, pps->assert_tu.nsec,
pps->assert_sequence);
}
+static DEVICE_ATTR_RO(assert);

-static ssize_t pps_show_clear(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t clear_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct pps_device *pps = dev_get_drvdata(dev);

@@ -54,45 +55,59 @@ static ssize_t pps_show_clear(struct device *dev,
(long long) pps->clear_tu.sec, pps->clear_tu.nsec,
pps->clear_sequence);
}
+static DEVICE_ATTR_RO(clear);

-static ssize_t pps_show_mode(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t mode_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct pps_device *pps = dev_get_drvdata(dev);

return sprintf(buf, "%4x\n", pps->info.mode);
}
+static DEVICE_ATTR_RO(mode);

-static ssize_t pps_show_echo(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t echo_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct pps_device *pps = dev_get_drvdata(dev);

return sprintf(buf, "%d\n", !!pps->info.echo);
}
+static DEVICE_ATTR_RO(echo);

-static ssize_t pps_show_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 pps_device *pps = dev_get_drvdata(dev);

return sprintf(buf, "%s\n", pps->info.name);
}
+static DEVICE_ATTR_RO(name);

-static ssize_t pps_show_path(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t path_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct pps_device *pps = dev_get_drvdata(dev);

return sprintf(buf, "%s\n", pps->info.path);
}
+static DEVICE_ATTR_RO(path);
+
+static struct attribute *pps_attrs[] = {
+ &dev_attr_assert.attr,
+ &dev_attr_clear.attr,
+ &dev_attr_mode.attr,
+ &dev_attr_echo.attr,
+ &dev_attr_name.attr,
+ &dev_attr_path.attr,
+ NULL,
+};
+
+static const struct attribute_group pps_group = {
+ .attrs = pps_attrs,
+};

-struct device_attribute pps_attrs[] = {
- __ATTR(assert, S_IRUGO, pps_show_assert, NULL),
- __ATTR(clear, S_IRUGO, pps_show_clear, NULL),
- __ATTR(mode, S_IRUGO, pps_show_mode, NULL),
- __ATTR(echo, S_IRUGO, pps_show_echo, NULL),
- __ATTR(name, S_IRUGO, pps_show_name, NULL),
- __ATTR(path, S_IRUGO, pps_show_path, NULL),
- __ATTR_NULL,
+const struct attribute_group *pps_groups[] = {
+ &pps_group,
+ NULL,
};
diff --git a/include/linux/pps_kernel.h b/include/linux/pps_kernel.h
index 7db3eb93..1d2cd212 100644
--- a/include/linux/pps_kernel.h
+++ b/include/linux/pps_kernel.h
@@ -80,7 +80,7 @@ struct pps_device {
* Global variables
*/

-extern struct device_attribute pps_attrs[];
+extern const struct attribute_group *pps_groups[];

/*
* Internal functions.
--
1.8.3.rc0.20.gb99dd2e


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