sysdev: Pass the attribute to the low level sysdev show/store function

[linux-2.6-omap-h63xx.git] / drivers / cpuidle / sysfs.c

diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 088ea74edd3480d42d883e7e7705e3a1f17af7fa..31a0e0b455b6e3c61ffef1ef004351fac0085dcd 100644 (file)
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -21,7 +21,8 @@ static int __init cpuidle_sysfs_setup(char *unused)
 }
 __setup("cpuidle_sysfs_switch", cpuidle_sysfs_setup);
 
-static ssize_t show_available_governors(struct sys_device *dev, char *buf)
+static ssize_t show_available_governors(struct sys_device *dev,
+               struct sysdev_attribute *attr, char *buf)
 {
        ssize_t i = 0;
        struct cpuidle_governor *tmp;
@@ -39,7 +40,8 @@ out:
        return i;
 }
 
-static ssize_t show_current_driver(struct sys_device *dev, char *buf)
+static ssize_t show_current_driver(struct sys_device *dev,
+               struct sysdev_attribute *attr, char *buf)
 {
        ssize_t ret;
 
@@ -53,7 +55,8 @@ static ssize_t show_current_driver(struct sys_device *dev, char *buf)
        return ret;
 }
 
-static ssize_t show_current_governor(struct sys_device *dev, char *buf)
+static ssize_t show_current_governor(struct sys_device *dev,
+                       struct sysdev_attribute *attr, char *buf)
 {
        ssize_t ret;
 
@@ -68,6 +71,7 @@ static ssize_t show_current_governor(struct sys_device *dev, char *buf)
 }
 
 static ssize_t store_current_governor(struct sys_device *dev,
+       struct sysdev_attribute *attr,
        const char *buf, size_t count)
 {
        char gov_name[CPUIDLE_NAME_LEN];
@@ -218,16 +222,29 @@ static ssize_t show_state_##_name(struct cpuidle_state *state, char *buf) \
        return sprintf(buf, "%u\n", state->_name);\
 }
 
-static ssize_t show_state_name(struct cpuidle_state *state, char *buf)
-{
-       return sprintf(buf, "%s\n", state->name);
+#define define_show_state_ull_function(_name) \
+static ssize_t show_state_##_name(struct cpuidle_state *state, char *buf) \
+{ \
+       return sprintf(buf, "%llu\n", state->_name);\
+}
+
+#define define_show_state_str_function(_name) \
+static ssize_t show_state_##_name(struct cpuidle_state *state, char *buf) \
+{ \
+       if (state->_name[0] == '\0')\
+               return sprintf(buf, "<null>\n");\
+       return sprintf(buf, "%s\n", state->_name);\
 }
 
 define_show_state_function(exit_latency)
 define_show_state_function(power_usage)
-define_show_state_function(usage)
-define_show_state_function(time)
+define_show_state_ull_function(usage)
+define_show_state_ull_function(time)
+define_show_state_str_function(name)
+define_show_state_str_function(desc)
+
 define_one_state_ro(name, show_state_name);
+define_one_state_ro(desc, show_state_desc);
 define_one_state_ro(latency, show_state_exit_latency);
 define_one_state_ro(power, show_state_power_usage);
 define_one_state_ro(usage, show_state_usage);
@@ -235,6 +252,7 @@ define_one_state_ro(time, show_state_time);
 
 static struct attribute *cpuidle_state_default_attrs[] = {
        &attr_name.attr,
+       &attr_desc.attr,
        &attr_latency.attr,
        &attr_power.attr,
        &attr_usage.attr,