diff options
| -rw-r--r-- | drivers/nvme/host/core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 414076aaf52b..4633acc0e68f 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3242,6 +3242,16 @@ static ssize_t nvme_sysfs_show_subsysnqn(struct device *dev, } static DEVICE_ATTR(subsysnqn, S_IRUGO, nvme_sysfs_show_subsysnqn, NULL); +static ssize_t nvme_sysfs_show_hostnqn(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct nvme_ctrl *ctrl = dev_get_drvdata(dev); + + return snprintf(buf, PAGE_SIZE, "%s\n", ctrl->opts->host->nqn); +} +static DEVICE_ATTR(hostnqn, S_IRUGO, nvme_sysfs_show_hostnqn, NULL); + static ssize_t nvme_sysfs_show_address(struct device *dev, struct device_attribute *attr, char *buf) @@ -3267,6 +3277,7 @@ static struct attribute *nvme_dev_attrs[] = { &dev_attr_numa_node.attr, &dev_attr_queue_count.attr, &dev_attr_sqsize.attr, + &dev_attr_hostnqn.attr, NULL }; @@ -3280,6 +3291,8 @@ static umode_t nvme_dev_attrs_are_visible(struct kobject *kobj, return 0; if (a == &dev_attr_address.attr && !ctrl->ops->get_address) return 0; + if (a == &dev_attr_hostnqn.attr && !ctrl->opts) + return 0; return a->mode; } |