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Diffstat (limited to 'arch/powerpc/kernel/vio.c')
-rw-r--r--arch/powerpc/kernel/vio.c78
1 files changed, 44 insertions, 34 deletions
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 96b6c97be5a..e7d0c88f621 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -997,21 +997,36 @@ static struct device_attribute vio_cmo_dev_attrs[] = {
/* sysfs bus functions and data structures for CMO */
#define viobus_cmo_rd_attr(name) \
-static ssize_t \
-viobus_cmo_##name##_show(struct bus_type *bt, char *buf) \
+static ssize_t cmo_##name##_show(struct bus_type *bt, char *buf) \
{ \
return sprintf(buf, "%lu\n", vio_cmo.name); \
-}
+} \
+static BUS_ATTR_RO(cmo_##name)
#define viobus_cmo_pool_rd_attr(name, var) \
static ssize_t \
-viobus_cmo_##name##_pool_show_##var(struct bus_type *bt, char *buf) \
+cmo_##name##_##var##_show(struct bus_type *bt, char *buf) \
{ \
return sprintf(buf, "%lu\n", vio_cmo.name.var); \
+} \
+static BUS_ATTR_RO(cmo_##name##_##var)
+
+viobus_cmo_rd_attr(entitled);
+viobus_cmo_rd_attr(spare);
+viobus_cmo_rd_attr(min);
+viobus_cmo_rd_attr(desired);
+viobus_cmo_rd_attr(curr);
+viobus_cmo_pool_rd_attr(reserve, size);
+viobus_cmo_pool_rd_attr(excess, size);
+viobus_cmo_pool_rd_attr(excess, free);
+
+static ssize_t cmo_high_show(struct bus_type *bt, char *buf)
+{
+ return sprintf(buf, "%lu\n", vio_cmo.high);
}
-static ssize_t viobus_cmo_high_reset(struct bus_type *bt, const char *buf,
- size_t count)
+static ssize_t cmo_high_store(struct bus_type *bt, const char *buf,
+ size_t count)
{
unsigned long flags;
@@ -1021,35 +1036,26 @@ static ssize_t viobus_cmo_high_reset(struct bus_type *bt, const char *buf,
return count;
}
-
-viobus_cmo_rd_attr(entitled);
-viobus_cmo_pool_rd_attr(reserve, size);
-viobus_cmo_pool_rd_attr(excess, size);
-viobus_cmo_pool_rd_attr(excess, free);
-viobus_cmo_rd_attr(spare);
-viobus_cmo_rd_attr(min);
-viobus_cmo_rd_attr(desired);
-viobus_cmo_rd_attr(curr);
-viobus_cmo_rd_attr(high);
-
-static struct bus_attribute vio_cmo_bus_attrs[] = {
- __ATTR(cmo_entitled, S_IRUGO, viobus_cmo_entitled_show, NULL),
- __ATTR(cmo_reserve_size, S_IRUGO, viobus_cmo_reserve_pool_show_size, NULL),
- __ATTR(cmo_excess_size, S_IRUGO, viobus_cmo_excess_pool_show_size, NULL),
- __ATTR(cmo_excess_free, S_IRUGO, viobus_cmo_excess_pool_show_free, NULL),
- __ATTR(cmo_spare, S_IRUGO, viobus_cmo_spare_show, NULL),
- __ATTR(cmo_min, S_IRUGO, viobus_cmo_min_show, NULL),
- __ATTR(cmo_desired, S_IRUGO, viobus_cmo_desired_show, NULL),
- __ATTR(cmo_curr, S_IRUGO, viobus_cmo_curr_show, NULL),
- __ATTR(cmo_high, S_IWUSR|S_IRUSR|S_IWGRP|S_IRGRP|S_IROTH,
- viobus_cmo_high_show, viobus_cmo_high_reset),
- __ATTR_NULL
+static BUS_ATTR_RW(cmo_high);
+
+static struct attribute *vio_bus_attrs[] = {
+ &bus_attr_cmo_entitled.attr,
+ &bus_attr_cmo_spare.attr,
+ &bus_attr_cmo_min.attr,
+ &bus_attr_cmo_desired.attr,
+ &bus_attr_cmo_curr.attr,
+ &bus_attr_cmo_high.attr,
+ &bus_attr_cmo_reserve_size.attr,
+ &bus_attr_cmo_excess_size.attr,
+ &bus_attr_cmo_excess_free.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(vio_bus);
static void vio_cmo_sysfs_init(void)
{
vio_bus_type.dev_attrs = vio_cmo_dev_attrs;
- vio_bus_type.bus_attrs = vio_cmo_bus_attrs;
+ vio_bus_type.bus_groups = vio_bus_groups;
}
#else /* CONFIG_PPC_SMLPAR */
int vio_cmo_entitlement_update(size_t new_entitlement) { return 0; }
@@ -1529,11 +1535,15 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
const char *cp;
dn = dev->of_node;
- if (!dn)
- return -ENODEV;
+ if (!dn) {
+ strcpy(buf, "\n");
+ return strlen(buf);
+ }
cp = of_get_property(dn, "compatible", NULL);
- if (!cp)
- return -ENODEV;
+ if (!cp) {
+ strcpy(buf, "\n");
+ return strlen(buf);
+ }
return sprintf(buf, "vio:T%sS%s\n", vio_dev->type, cp);
}