[PATCH for-next 2/3] IB/hfi1: Remove unused struct mmu_rb_ops fields .insert, .invalidate

[Dennis Dalessandro <dennis.dalessandro@xxxxxxxxxxxxxxxxxxxx>]

From: Brendan Cunningham <bcunningham@xxxxxxxxxxxxxxxxxxxx>

The struct mmu_rb_ops function pointers .insert, .invalidate were only
used to increment and decrement struct sdma_mmu_node.refcount.

With the deletion of struct sdma_mmu_node.refcount and the addition of
struct mmu_rb_node.refcount  these function pointers are not called and
there are no implementations of them. So it is safe to delete these from
struct mmu_rb_ops.

Signed-off-by: Brendan Cunningham <bcunningham@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxxxxxxxxxxxxx>
---
 drivers/infiniband/hw/hfi1/mmu_rb.h |    7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/mmu_rb.h b/drivers/infiniband/hw/hfi1/mmu_rb.h
index 82c505a04fc6..751dc3fe1e02 100644
--- a/drivers/infiniband/hw/hfi1/mmu_rb.h
+++ b/drivers/infiniband/hw/hfi1/mmu_rb.h
@@ -19,16 +19,11 @@ struct mmu_rb_node {
 	struct kref refcount;
 };
 
-/*
- * NOTE: filter, insert, invalidate, and evict must not sleep.  Only remove is
- * allowed to sleep.
- */
+/* filter and evict must not sleep. Only remove is allowed to sleep. */
 struct mmu_rb_ops {
 	bool (*filter)(struct mmu_rb_node *node, unsigned long addr,
 		       unsigned long len);
-	int (*insert)(void *ops_arg, struct mmu_rb_node *mnode);
 	void (*remove)(void *ops_arg, struct mmu_rb_node *mnode);
-	int (*invalidate)(void *ops_arg, struct mmu_rb_node *node);
 	int (*evict)(void *ops_arg, struct mmu_rb_node *mnode,
 		     void *evict_arg, bool *stop);
 };