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driver core: Convert some drivers to CLASS_ATTR_STRING

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Convert some drivers who export a single string as class attribute
to the new class_attr_string functions. This removes redundant
code all over.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Andi Kleen 2010-01-05 12:48:09 +01:00 committed by Greg Kroah-Hartman
parent 869dfc875e
commit 0933e2d98d
6 changed files with 27 additions and 57 deletions
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19
drivers/gpu/drm/drm_sysfs.c
View File

@ -70,20 +70,17 @@ static int drm_class_resume(struct device *dev)
return 0;
}
/* Display the version of drm_core. This doesn't work right in current design */
static ssize_t version_show(struct class *dev, struct class_attribute *attr,
char *buf)
{
return sprintf(buf, "%s %d.%d.%d %s\n", CORE_NAME, CORE_MAJOR,
CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
}
static char *drm_devnode(struct device *dev, mode_t *mode)
{
return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
}
static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
static CLASS_ATTR_STRING(version, S_IRUGO,
CORE_NAME " "
__stringify(CORE_MAJOR) "."
__stringify(CORE_MINOR) "."
__stringify(CORE_PATCHLEVEL) " "
CORE_DATE);
/**
* drm_sysfs_create - create a struct drm_sysfs_class structure
@ -110,7 +107,7 @@ struct class *drm_sysfs_create(struct module *owner, char *name)
class->suspend = drm_class_suspend;
class->resume = drm_class_resume;
err = class_create_file(class, &class_attr_version);
err = class_create_file(class, &class_attr_version.attr);
if (err)
goto err_out_class;
@ -133,7 +130,7 @@ void drm_sysfs_destroy(void)
{
if ((drm_class == NULL) || (IS_ERR(drm_class)))
return;
class_remove_file(drm_class, &class_attr_version);
class_remove_file(drm_class, &class_attr_version.attr);
class_destroy(drm_class);
}

15
drivers/infiniband/core/ucm.c
View File

@ -1336,13 +1336,8 @@ static void ib_ucm_remove_one(struct ib_device *device)
device_unregister(&ucm_dev->dev);
}
static ssize_t show_abi_version(struct class *class,
struct class_attribute *attr,
char *buf)
{
return sprintf(buf, "%d\n", IB_USER_CM_ABI_VERSION);
}
static CLASS_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
static CLASS_ATTR_STRING(abi_version, S_IRUGO,
__stringify(IB_USER_CM_ABI_VERSION));
static int __init ib_ucm_init(void)
{
@ -1355,7 +1350,7 @@ static int __init ib_ucm_init(void)
goto error1;
}
ret = class_create_file(&cm_class, &class_attr_abi_version);
ret = class_create_file(&cm_class, &class_attr_abi_version.attr);
if (ret) {
printk(KERN_ERR "ucm: couldn't create abi_version attribute\n");
goto error2;
@ -1369,7 +1364,7 @@ static int __init ib_ucm_init(void)
return 0;
error3:
class_remove_file(&cm_class, &class_attr_abi_version);
class_remove_file(&cm_class, &class_attr_abi_version.attr);
error2:
unregister_chrdev_region(IB_UCM_BASE_DEV, IB_UCM_MAX_DEVICES);
error1:
@ -1379,7 +1374,7 @@ static int __init ib_ucm_init(void)
static void __exit ib_ucm_cleanup(void)
{
ib_unregister_client(&ucm_client);
class_remove_file(&cm_class, &class_attr_abi_version);
class_remove_file(&cm_class, &class_attr_abi_version.attr);
unregister_chrdev_region(IB_UCM_BASE_DEV, IB_UCM_MAX_DEVICES);
if (overflow_maj)
unregister_chrdev_region(overflow_maj, IB_UCM_MAX_DEVICES);

11
drivers/infiniband/core/user_mad.c
View File

@ -965,13 +965,8 @@ static ssize_t show_port(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR(port, S_IRUGO, show_port, NULL);
static ssize_t show_abi_version(struct class *class,
struct class_attribute *attr,
char *buf)
{
return sprintf(buf, "%d\n", IB_USER_MAD_ABI_VERSION);
}
static CLASS_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
static CLASS_ATTR_STRING(abi_version, S_IRUGO,
__stringify(IB_USER_MAD_ABI_VERSION));
static dev_t overflow_maj;
static DECLARE_BITMAP(overflow_map, IB_UMAD_MAX_PORTS);
@ -1196,7 +1191,7 @@ static int __init ib_umad_init(void)
goto out_chrdev;
}
ret = class_create_file(umad_class, &class_attr_abi_version);
ret = class_create_file(umad_class, &class_attr_abi_version.attr);
if (ret) {
printk(KERN_ERR "user_mad: couldn't create abi_version attribute\n");
goto out_class;

11
drivers/infiniband/core/uverbs_main.c
View File

@ -691,13 +691,8 @@ static ssize_t show_dev_abi_version(struct device *device,
}
static DEVICE_ATTR(abi_version, S_IRUGO, show_dev_abi_version, NULL);
static ssize_t show_abi_version(struct class *class,
struct class_attribute *attr,
char *buf)
{
return sprintf(buf, "%d\n", IB_USER_VERBS_ABI_VERSION);
}
static CLASS_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
static CLASS_ATTR_STRING(abi_version, S_IRUGO,
__stringify(IB_USER_VERBS_ABI_VERSION));
static dev_t overflow_maj;
static DECLARE_BITMAP(overflow_map, IB_UVERBS_MAX_DEVICES);
@ -843,7 +838,7 @@ static int __init ib_uverbs_init(void)
goto out_chrdev;
}
ret = class_create_file(uverbs_class, &class_attr_abi_version);
ret = class_create_file(uverbs_class, &class_attr_abi_version.attr);
if (ret) {
printk(KERN_ERR "user_verbs: couldn't create abi_version attribute\n");
goto out_class;

13
drivers/misc/phantom.c
View File

@ -497,12 +497,7 @@ static struct pci_driver phantom_pci_driver = {
.resume = phantom_resume
};
static ssize_t phantom_show_version(struct class *cls, struct class_attribute *attr, char *buf)
{
return sprintf(buf, PHANTOM_VERSION "\n");
}
static CLASS_ATTR(version, 0444, phantom_show_version, NULL);
static CLASS_ATTR_STRING(version, 0444, PHANTOM_VERSION);
static int __init phantom_init(void)
{
@ -515,7 +510,7 @@ static int __init phantom_init(void)
printk(KERN_ERR "phantom: can't register phantom class\n");
goto err;
}
retval = class_create_file(phantom_class, &class_attr_version);
retval = class_create_file(phantom_class, &class_attr_version.attr);
if (retval) {
printk(KERN_ERR "phantom: can't create sysfs version file\n");
goto err_class;
@ -541,7 +536,7 @@ static int __init phantom_init(void)
err_unchr:
unregister_chrdev_region(dev, PHANTOM_MAX_MINORS);
err_attr:
class_remove_file(phantom_class, &class_attr_version);
class_remove_file(phantom_class, &class_attr_version.attr);
err_class:
class_destroy(phantom_class);
err:
@ -554,7 +549,7 @@ static void __exit phantom_exit(void)
unregister_chrdev_region(MKDEV(phantom_major, 0), PHANTOM_MAX_MINORS);
class_remove_file(phantom_class, &class_attr_version);
class_remove_file(phantom_class, &class_attr_version.attr);
class_destroy(phantom_class);
pr_debug("phantom: module successfully removed\n");

15
drivers/staging/asus_oled/asus_oled.c
View File

@ -770,15 +770,8 @@ static struct usb_driver oled_driver = {
.id_table = id_table,
};
static ssize_t version_show(struct class *dev,
struct class_attribute *attr,
char *buf)
{
return sprintf(buf, ASUS_OLED_UNDERSCORE_NAME " %s\n",
ASUS_OLED_VERSION);
}
static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
static CLASS_ATTR_STRING(version, S_IRUGO,
ASUS_OLED_UNDERSCORE_NAME " " ASUS_OLED_VERSION);
static int __init asus_oled_init(void)
{
@ -790,7 +783,7 @@ static int __init asus_oled_init(void)
return PTR_ERR(oled_class);
}
retval = class_create_file(oled_class, &class_attr_version);
retval = class_create_file(oled_class, &class_attr_version.attr);
if (retval) {
err("Error creating class version file");
goto error;
@ -812,7 +805,7 @@ static int __init asus_oled_init(void)
static void __exit asus_oled_exit(void)
{
class_remove_file(oled_class, &class_attr_version);
class_remove_file(oled_class, &class_attr_version.attr);
class_destroy(oled_class);
usb_deregister(&oled_driver);