[PATCH] zorro: stop creating attributes by hand
From: Dmitry Torokhov
Date: Tue Feb 14 2017 - 15:24:24 EST
Instead of creating attributes one by one, define attribute_group array
and attach it to bus->dev_groups, so that all needed attributes are created
automatically when a new device is registered on the bus.
Also switch to using standard DEVICE_ATTR_RO() macros.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
---
Not tested.
drivers/zorro/zorro-driver.c | 15 +++++----
drivers/zorro/zorro-sysfs.c | 76 +++++++++++++++++++++++---------------------
drivers/zorro/zorro.c | 3 --
drivers/zorro/zorro.h | 3 +-
4 files changed, 50 insertions(+), 47 deletions(-)
diff --git a/drivers/zorro/zorro-driver.c b/drivers/zorro/zorro-driver.c
index eacae1434b73..fa23b7366b98 100644
--- a/drivers/zorro/zorro-driver.c
+++ b/drivers/zorro/zorro-driver.c
@@ -14,6 +14,8 @@
#include <linux/module.h>
#include <linux/zorro.h>
+#include "zorro.h"
+
/**
* zorro_match_device - Tell if a Zorro device structure has a matching
@@ -161,12 +163,13 @@ static int zorro_uevent(struct device *dev, struct kobj_uevent_env *env)
}
struct bus_type zorro_bus_type = {
- .name = "zorro",
- .dev_name = "zorro",
- .match = zorro_bus_match,
- .uevent = zorro_uevent,
- .probe = zorro_device_probe,
- .remove = zorro_device_remove,
+ .name = "zorro",
+ .dev_name = "zorro",
+ .dev_groups = zorro_device_attribute_groups,
+ .match = zorro_bus_match,
+ .uevent = zorro_uevent,
+ .probe = zorro_device_probe,
+ .remove = zorro_device_remove,
};
EXPORT_SYMBOL(zorro_bus_type);
diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c
index 9282dbf5abdb..3d34dba9bb2d 100644
--- a/drivers/zorro/zorro-sysfs.c
+++ b/drivers/zorro/zorro-sysfs.c
@@ -23,33 +23,33 @@
/* show configuration fields */
#define zorro_config_attr(name, field, format_string) \
-static ssize_t \
-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 zorro_dev *z; \
\
z = to_zorro_dev(dev); \
return sprintf(buf, format_string, z->field); \
} \
-static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
+static DEVICE_ATTR_RO(name);
zorro_config_attr(id, id, "0x%08x\n");
zorro_config_attr(type, rom.er_Type, "0x%02x\n");
zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
zorro_config_attr(slotsize, slotsize, "0x%04x\n");
-static ssize_t
-show_serial(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t serial_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct zorro_dev *z;
z = to_zorro_dev(dev);
return sprintf(buf, "0x%08x\n", be32_to_cpu(z->rom.er_SerialNumber));
}
+static DEVICE_ATTR_RO(serial);
-static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
-
-static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t resource_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct zorro_dev *z = to_zorro_dev(dev);
@@ -58,8 +58,27 @@ static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *
(unsigned long)zorro_resource_end(z),
zorro_resource_flags(z));
}
+static DEVICE_ATTR_RO(resource);
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct zorro_dev *z = to_zorro_dev(dev);
-static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
+ return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
+}
+static DEVICE_ATTR_RO(modalias);
+
+static struct attribute *zorro_device_attrs[] = {
+ &dev_attr_id.attr,
+ &dev_attr_type.attr,
+ &dev_attr_serial.attr,
+ &dev_attr_slotaddr.attr,
+ &dev_attr_slotsize.attr,
+ &dev_attr_resource.attr,
+ &dev_attr_modalias.attr,
+ NULL
+};
static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
@@ -88,32 +107,17 @@ static struct bin_attribute zorro_config_attr = {
.read = zorro_read_config,
};
-static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct zorro_dev *z = to_zorro_dev(dev);
-
- return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
-}
-
-static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
+static struct bin_attribute *zorro_device_bin_attrs[] = {
+ &zorro_config_attr,
+ NULL
+};
-int zorro_create_sysfs_dev_files(struct zorro_dev *z)
-{
- struct device *dev = &z->dev;
- int error;
-
- /* current configuration's attributes */
- if ((error = device_create_file(dev, &dev_attr_id)) ||
- (error = device_create_file(dev, &dev_attr_type)) ||
- (error = device_create_file(dev, &dev_attr_serial)) ||
- (error = device_create_file(dev, &dev_attr_slotaddr)) ||
- (error = device_create_file(dev, &dev_attr_slotsize)) ||
- (error = device_create_file(dev, &dev_attr_resource)) ||
- (error = device_create_file(dev, &dev_attr_modalias)) ||
- (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
- return error;
-
- return 0;
-}
+static const struct attribute_group zorro_device_attr_group = {
+ .attrs = zorro_device_attrs,
+ .bin_attrs = zorro_device_bin_attrs,
+};
+const struct attribute_group *zorro_device_attribute_groups[] = {
+ &zorro_device_attr_group,
+ NULL
+};
diff --git a/drivers/zorro/zorro.c b/drivers/zorro/zorro.c
index d295d9878dff..cc1b1ac57d61 100644
--- a/drivers/zorro/zorro.c
+++ b/drivers/zorro/zorro.c
@@ -197,9 +197,6 @@ static int __init amiga_zorro_probe(struct platform_device *pdev)
put_device(&z->dev);
continue;
}
- error = zorro_create_sysfs_dev_files(z);
- if (error)
- dev_err(&z->dev, "Error creating sysfs files\n");
}
/* Mark all available Zorro II memory */
diff --git a/drivers/zorro/zorro.h b/drivers/zorro/zorro.h
index 34119fb4e560..4f805c01cfbc 100644
--- a/drivers/zorro/zorro.h
+++ b/drivers/zorro/zorro.h
@@ -5,5 +5,4 @@ extern void zorro_name_device(struct zorro_dev *z);
static inline void zorro_name_device(struct zorro_dev *dev) { }
#endif
-extern int zorro_create_sysfs_dev_files(struct zorro_dev *z);
-
+extern const struct attribute_group *zorro_device_attribute_groups[];
--
2.11.0.483.g087da7b7c-goog
--
Dmitry