[PATCH rdma-next v4 02/16] RDMA/umem: Split ib_umem_get_va() into a thin wrapper around __ib_umem_get_va()

[Jiri Pirko <jiri@resnulli.us>]

From: Jiri Pirko <jiri@nvidia.com>

The follow-up patch is going to introduce ib_umem_get_desc(),
the canonical desc-to-umem helper, which needs to pin a userspace VA
without going through the exported ib_umem_get_va() helper so later on
ib_umem_get_va() would use the ib_umem_get_desc() flow too.

Move the existing ib_umem_get_va() to a static __ib_umem_get_va()
and have ib_umem_get_va() as a thin wrapper that calls it.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
---
v2->v3:
- new patch
---
 drivers/infiniband/core/umem.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index b253090bb1ab..0056f23af57b 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -153,16 +153,9 @@ unsigned long ib_umem_find_best_pgsz(struct ib_umem *umem,
 }
 EXPORT_SYMBOL(ib_umem_find_best_pgsz);
 
-/**
- * ib_umem_get_va - Pin and DMA map userspace memory.
- *
- * @device: IB device to connect UMEM
- * @addr: userspace virtual address to start at
- * @size: length of region to pin
- * @access: IB_ACCESS_xxx flags for memory being pinned
- */
-struct ib_umem *ib_umem_get_va(struct ib_device *device, unsigned long addr,
-			       size_t size, int access)
+static struct ib_umem *__ib_umem_get_va(struct ib_device *device,
+					unsigned long addr, size_t size,
+					int access)
 {
 	struct ib_umem *umem;
 	struct page **page_list;
@@ -275,6 +268,20 @@ struct ib_umem *ib_umem_get_va(struct ib_device *device, unsigned long addr,
 	}
 	return ret ? ERR_PTR(ret) : umem;
 }
+
+/**
+ * ib_umem_get_va - Pin and DMA map userspace memory.
+ *
+ * @device: IB device to connect UMEM
+ * @addr: userspace virtual address to start at
+ * @size: length of region to pin
+ * @access: IB_ACCESS_xxx flags for memory being pinned
+ */
+struct ib_umem *ib_umem_get_va(struct ib_device *device, unsigned long addr,
+			       size_t size, int access)
+{
+	return __ib_umem_get_va(device, addr, size, access);
+}
 EXPORT_SYMBOL(ib_umem_get_va);
 
 /**
-- 
2.53.0