rtmutex-tester: convert sysdev_class to a regular subsystem

After all sysdev classes are ported to regular driver core entities, the
sysdev implementation will be entirely removed from the kernel.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 19 insertions, 18 deletions

diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index 3d9f31cd79e7..98ec49475460 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -6,11 +6,11 @@
  *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
  *
  */
+#include <linux/device.h>
 #include <linux/kthread.h>
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/spinlock.h>
-#include <linux/sysdev.h>
 #include <linux/timer.h>
 #include <linux/freezer.h>
 
@@ -27,7 +27,7 @@ struct test_thread_data {
         int                     opdata;
         int                     mutexes[MAX_RT_TEST_MUTEXES];
         int                     event;
-        struct sys_device       sysdev;
+        struct device           dev;
 };
 
 static struct test_thread_data thread_data[MAX_RT_TEST_THREADS];
@@ -271,7 +271,7 @@ static int test_func(void *data)
  *
  * opcode:data
  */
-static ssize_t sysfs_test_command(struct sys_device *dev, struct sysdev_attribute *attr,
+static ssize_t sysfs_test_command(struct device *dev, struct device_attribute *attr,
                                   const char *buf, size_t count)
 {
         struct sched_param schedpar;
@@ -279,8 +279,8 @@ static ssize_t sysfs_test_command(struct sys_device *dev, struct sysdev_attribut
         char cmdbuf[32];
         int op, dat, tid, ret;
 
-        td = container_of(dev, struct test_thread_data, sysdev);
-        tid = td->sysdev.id;
+        td = container_of(dev, struct test_thread_data, dev);
+        tid = td->dev.id;
 
         /* strings from sysfs write are not 0 terminated! */
         if (count >= sizeof(cmdbuf))
@@ -334,7 +334,7 @@ static ssize_t sysfs_test_command(struct sys_device *dev, struct sysdev_attribut
  * @dev:        thread to query
  * @buf:        char buffer to be filled with thread status info
  */
-static ssize_t sysfs_test_status(struct sys_device *dev, struct sysdev_attribute *attr,
+static ssize_t sysfs_test_status(struct device *dev, struct device_attribute *attr,
                                  char *buf)
 {
         struct test_thread_data *td;
@@ -342,8 +342,8 @@ static ssize_t sysfs_test_status(struct sys_device *dev, struct sysdev_attribute
         char *curr = buf;
         int i;
 
-        td = container_of(dev, struct test_thread_data, sysdev);
-        tsk = threads[td->sysdev.id];
+        td = container_of(dev, struct test_thread_data, dev);
+        tsk = threads[td->dev.id];
 
         spin_lock(&rttest_lock);
 
@@ -360,28 +360,29 @@ static ssize_t sysfs_test_status(struct sys_device *dev, struct sysdev_attribute
         spin_unlock(&rttest_lock);
 
         curr += sprintf(curr, ", T: %p, R: %p\n", tsk,
-                        mutexes[td->sysdev.id].owner);
+                        mutexes[td->dev.id].owner);
 
         return curr - buf;
 }
 
-static SYSDEV_ATTR(status, 0600, sysfs_test_status, NULL);
-static SYSDEV_ATTR(command, 0600, NULL, sysfs_test_command);
+static DEVICE_ATTR(status, 0600, sysfs_test_status, NULL);
+static DEVICE_ATTR(command, 0600, NULL, sysfs_test_command);
 
-static struct sysdev_class rttest_sysclass = {
+static struct bus_type rttest_subsys = {
         .name = "rttest",
+        .dev_name = "rttest",
 };
 
 static int init_test_thread(int id)
 {
-        thread_data[id].sysdev.cls = &rttest_sysclass;
-        thread_data[id].sysdev.id = id;
+        thread_data[id].dev.bus = &rttest_subsys;
+        thread_data[id].dev.id = id;
 
         threads[id] = kthread_run(test_func, &thread_data[id], "rt-test-%d", id);
         if (IS_ERR(threads[id]))
                 return PTR_ERR(threads[id]);
 
-        return sysdev_register(&thread_data[id].sysdev);
+        return device_register(&thread_data[id].dev);
 }
 
 static int init_rttest(void)
@@ -393,7 +394,7 @@ static int init_rttest(void)
         for (i = 0; i < MAX_RT_TEST_MUTEXES; i++)
                 rt_mutex_init(&mutexes[i]);
 
-        ret = sysdev_class_register(&rttest_sysclass);
+        ret = subsys_system_register(&rttest_subsys, NULL);
         if (ret)
                 return ret;
 
@@ -401,10 +402,10 @@ static int init_rttest(void)
                 ret = init_test_thread(i);
                 if (ret)
                         break;
-                ret = sysdev_create_file(&thread_data[i].sysdev, &attr_status);
+                ret = device_create_file(&thread_data[i].dev, &dev_attr_status);
                 if (ret)
                         break;
-                ret = sysdev_create_file(&thread_data[i].sysdev, &attr_command);
+                ret = device_create_file(&thread_data[i].dev, &dev_attr_command);
                 if (ret)
                         break;
         }