diff options
Diffstat (limited to 'drivers/cxl')
| -rw-r--r-- | drivers/cxl/core/region.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index 17d2d0c12725..0fc80478ff6b 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -45,7 +45,10 @@ static ssize_t uuid_show(struct device *dev, struct device_attribute *attr, rc = down_read_interruptible(&cxl_region_rwsem); if (rc) return rc; - rc = sysfs_emit(buf, "%pUb\n", &p->uuid); + if (cxlr->mode != CXL_DECODER_PMEM) + rc = sysfs_emit(buf, "\n"); + else + rc = sysfs_emit(buf, "%pUb\n", &p->uuid); up_read(&cxl_region_rwsem); return rc; @@ -300,8 +303,12 @@ static umode_t cxl_region_visible(struct kobject *kobj, struct attribute *a, struct device *dev = kobj_to_dev(kobj); struct cxl_region *cxlr = to_cxl_region(dev); + /* + * Support tooling that expects to find a 'uuid' attribute for all + * regions regardless of mode. + */ if (a == &dev_attr_uuid.attr && cxlr->mode != CXL_DECODER_PMEM) - return 0; + return 0444; return a->mode; } |