diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index 3500fc84d939abf70eae6ce2fb6a6a1f3afed653..8de5a04644a1671d4be0f83cb42032b4dc384e3a 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -463,6 +463,15 @@ static struct device_attribute dev_attr_nd_badblocks = { .show = nd_badblocks_show, }; +static ssize_t resource_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nd_region *nd_region = to_nd_region(dev); + + return sprintf(buf, "%#llx\n", nd_region->ndr_start); +} +static DEVICE_ATTR_RO(resource); + static struct attribute *nd_region_attributes[] = { &dev_attr_size.attr, &dev_attr_nstype.attr, @@ -476,6 +485,7 @@ static struct attribute *nd_region_attributes[] = { &dev_attr_namespace_seed.attr, &dev_attr_init_namespaces.attr, &dev_attr_nd_badblocks.attr, + &dev_attr_resource.attr, NULL, }; @@ -495,6 +505,9 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n) if (!is_nd_pmem(dev) && a == &dev_attr_nd_badblocks.attr) return 0; + if (!is_nd_pmem(dev) && a == &dev_attr_resource.attr) + return 0; + if (a != &dev_attr_set_cookie.attr && a != &dev_attr_available_size.attr) return a->mode;