From 28812fe11a21826ba4c97c6c7971a619987cd912 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 5 Jan 2010 12:48:07 +0100 Subject: driver-core: Add attribute argument to class_attribute show/store Passing the attribute to the low level IO functions allows all kinds of cleanups, by sharing low level IO code without requiring an own function for every piece of data. Also drivers can extend the attributes with own data fields and use that in the low level function. This makes the class attributes the same as sysdev_class attributes and plain attributes. This will allow further cleanups in drivers. Full tree sweep converting all users. Signed-off-by: Andi Kleen Signed-off-by: Greg Kroah-Hartman --- drivers/misc/phantom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/misc/phantom.c') diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c index 04c27266f567..d30ae9560309 100644 --- a/drivers/misc/phantom.c +++ b/drivers/misc/phantom.c @@ -497,7 +497,7 @@ static struct pci_driver phantom_pci_driver = { .resume = phantom_resume }; -static ssize_t phantom_show_version(struct class *cls, char *buf) +static ssize_t phantom_show_version(struct class *cls, struct class_attribute *attr, char *buf) { return sprintf(buf, PHANTOM_VERSION "\n"); } -- cgit v1.2.3 From 0933e2d98d1b170ef62d48e18157f5dc43b58217 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 5 Jan 2010 12:48:09 +0100 Subject: driver core: Convert some drivers to CLASS_ATTR_STRING 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 Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/drm_sysfs.c | 19 ++++++++----------- drivers/infiniband/core/ucm.c | 15 +++++---------- drivers/infiniband/core/user_mad.c | 11 +++-------- drivers/infiniband/core/uverbs_main.c | 11 +++-------- drivers/misc/phantom.c | 13 ++++--------- drivers/staging/asus_oled/asus_oled.c | 15 ++++----------- 6 files changed, 27 insertions(+), 57 deletions(-) (limited to 'drivers/misc/phantom.c') diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index b95aaf23596e..014ce24761b9 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -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); } diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index 02e209ff33fd..017d6e24448f 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -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 @@ error1: 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); diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index d0de8f265f45..04b585e86cb2 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -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; diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 60879399207a..d805cf365c8d 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -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; diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c index d30ae9560309..779aa8ebe4cf 100644 --- a/drivers/misc/phantom.c +++ b/drivers/misc/phantom.c @@ -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"); diff --git a/drivers/staging/asus_oled/asus_oled.c b/drivers/staging/asus_oled/asus_oled.c index 7d93f50a0a64..7ebecc92c61b 100644 --- a/drivers/staging/asus_oled/asus_oled.c +++ b/drivers/staging/asus_oled/asus_oled.c @@ -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 @@ error: 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); -- cgit v1.2.3