PM / QoS: Change to use DEFINE_SHOW_ATTRIBUTE macro

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 86d72ff..b7a8250 100644 (file)
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -184,7 +184,7 @@ static inline void pm_qos_set_value(struct pm_qos_constraints *c, s32 value)
        c->target_value = value;
 }
 
-static int pm_qos_dbg_show_requests(struct seq_file *s, void *unused)
+static int pm_qos_debug_show(struct seq_file *s, void *unused)
 {
        struct pm_qos_object *qos = (struct pm_qos_object *)s->private;
        struct pm_qos_constraints *c;
@@ -245,18 +245,7 @@ out:
        return 0;
 }
 
-static int pm_qos_dbg_open(struct inode *inode, struct file *file)
-{
-       return single_open(file, pm_qos_dbg_show_requests,
-                          inode->i_private);
-}
-
-static const struct file_operations pm_qos_debug_fops = {
-       .open           = pm_qos_dbg_open,
-       .read           = seq_read,
-       .llseek         = seq_lseek,
-       .release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(pm_qos_debug);
 
 /**
  * pm_qos_update_target - manages the constraints list and calls the notifiers