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path: root/drivers/nvdimm/dimm_devs.c
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Diffstat (limited to 'drivers/nvdimm/dimm_devs.c')
-rw-r--r--drivers/nvdimm/dimm_devs.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c
index 83b179ed6d61..c05eb807d674 100644
--- a/drivers/nvdimm/dimm_devs.c
+++ b/drivers/nvdimm/dimm_devs.c
@@ -209,6 +209,15 @@ struct nvdimm *to_nvdimm(struct device *dev)
}
EXPORT_SYMBOL_GPL(to_nvdimm);
+struct nvdimm *nd_blk_region_to_dimm(struct nd_blk_region *ndbr)
+{
+ struct nd_region *nd_region = &ndbr->nd_region;
+ struct nd_mapping *nd_mapping = &nd_region->mapping[0];
+
+ return nd_mapping->nvdimm;
+}
+EXPORT_SYMBOL_GPL(nd_blk_region_to_dimm);
+
struct nvdimm_drvdata *to_ndd(struct nd_mapping *nd_mapping)
{
struct nvdimm *nvdimm = nd_mapping->nvdimm;