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-rw-r--r--drivers/nvdimm/dimm_devs.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c
index 3ceddae0509f..21498d461fde 100644
--- a/drivers/nvdimm/dimm_devs.c
+++ b/drivers/nvdimm/dimm_devs.c
@@ -53,7 +53,9 @@ static int validate_dimm(struct nvdimm_drvdata *ndd)
/**
* nvdimm_init_nsarea - determine the geometry of a dimm's namespace area
- * @nvdimm: dimm to initialize
+ * @ndd: dimm to initialize
+ *
+ * Returns: %0 if the area is already valid, -errno on error
*/
int nvdimm_init_nsarea(struct nvdimm_drvdata *ndd)
{
@@ -722,6 +724,9 @@ static unsigned long dpa_align(struct nd_region *nd_region)
* contiguous unallocated dpa range.
* @nd_region: constrain available space check to this reference region
* @nd_mapping: container of dpa-resource-root + labels
+ *
+ * Returns: %0 if there is an alignment error, otherwise the max
+ * unallocated dpa range
*/
resource_size_t nd_pmem_max_contiguous_dpa(struct nd_region *nd_region,
struct nd_mapping *nd_mapping)
@@ -767,6 +772,8 @@ resource_size_t nd_pmem_max_contiguous_dpa(struct nd_region *nd_region,
*
* Validate that a PMEM label, if present, aligns with the start of an
* interleave set.
+ *
+ * Returns: %0 if there is an alignment error, otherwise the unallocated dpa
*/
resource_size_t nd_pmem_available_dpa(struct nd_region *nd_region,
struct nd_mapping *nd_mapping)
@@ -836,8 +843,10 @@ struct resource *nvdimm_allocate_dpa(struct nvdimm_drvdata *ndd,
/**
* nvdimm_allocated_dpa - sum up the dpa currently allocated to this label_id
- * @nvdimm: container of dpa-resource-root + labels
+ * @ndd: container of dpa-resource-root + labels
* @label_id: dpa resource name of the form pmem-<human readable uuid>
+ *
+ * Returns: sum of the dpa allocated to the label_id
*/
resource_size_t nvdimm_allocated_dpa(struct nvdimm_drvdata *ndd,
struct nd_label_id *label_id)