diff options
Diffstat (limited to 'samples/vfio-mdev/mtty.c')
-rw-r--r-- | samples/vfio-mdev/mtty.c | 66 |
1 files changed, 15 insertions, 51 deletions
diff --git a/samples/vfio-mdev/mtty.c b/samples/vfio-mdev/mtty.c index ce84a300a4da..b9b24be4abda 100644 --- a/samples/vfio-mdev/mtty.c +++ b/samples/vfio-mdev/mtty.c @@ -708,26 +708,10 @@ accessfailed: return ret; } -static int mtty_create(struct kobject *kobj, struct mdev_device *mdev) +static int mtty_create(struct mdev_device *mdev) { struct mdev_state *mdev_state; - char name[MTTY_STRING_LEN]; - int nr_ports = 0, i; - - if (!mdev) - return -EINVAL; - - for (i = 0; i < 2; i++) { - snprintf(name, MTTY_STRING_LEN, "%s-%d", - dev_driver_string(mdev_parent_dev(mdev)), i + 1); - if (!strcmp(kobj->name, name)) { - nr_ports = i + 1; - break; - } - } - - if (!nr_ports) - return -EINVAL; + int nr_ports = mdev_get_type_group_id(mdev) + 1; mdev_state = kzalloc(sizeof(struct mdev_state), GFP_KERNEL); if (mdev_state == NULL) @@ -1308,44 +1292,25 @@ static const struct attribute_group *mdev_dev_groups[] = { NULL, }; -static ssize_t -name_show(struct kobject *kobj, struct device *dev, char *buf) +static ssize_t name_show(struct mdev_type *mtype, + struct mdev_type_attribute *attr, char *buf) { - char name[MTTY_STRING_LEN]; - int i; - const char *name_str[2] = {"Single port serial", "Dual port serial"}; + static const char *name_str[2] = { "Single port serial", + "Dual port serial" }; - for (i = 0; i < 2; i++) { - snprintf(name, MTTY_STRING_LEN, "%s-%d", - dev_driver_string(dev), i + 1); - if (!strcmp(kobj->name, name)) - return sprintf(buf, "%s\n", name_str[i]); - } - - return -EINVAL; + return sysfs_emit(buf, "%s\n", + name_str[mtype_get_type_group_id(mtype)]); } static MDEV_TYPE_ATTR_RO(name); -static ssize_t -available_instances_show(struct kobject *kobj, struct device *dev, char *buf) +static ssize_t available_instances_show(struct mdev_type *mtype, + struct mdev_type_attribute *attr, + char *buf) { - char name[MTTY_STRING_LEN]; - int i; struct mdev_state *mds; - int ports = 0, used = 0; - - for (i = 0; i < 2; i++) { - snprintf(name, MTTY_STRING_LEN, "%s-%d", - dev_driver_string(dev), i + 1); - if (!strcmp(kobj->name, name)) { - ports = i + 1; - break; - } - } - - if (!ports) - return -EINVAL; + unsigned int ports = mtype_get_type_group_id(mtype) + 1; + int used = 0; list_for_each_entry(mds, &mdev_devices_list, next) used += mds->nr_ports; @@ -1355,9 +1320,8 @@ available_instances_show(struct kobject *kobj, struct device *dev, char *buf) static MDEV_TYPE_ATTR_RO(available_instances); - -static ssize_t device_api_show(struct kobject *kobj, struct device *dev, - char *buf) +static ssize_t device_api_show(struct mdev_type *mtype, + struct mdev_type_attribute *attr, char *buf) { return sprintf(buf, "%s\n", VFIO_DEVICE_API_PCI_STRING); } |