gpu: nvgpu: add nvgpu_list_replace_init API

Add new List API nvgpu_list_replace_init to replace
old node entry by new node

Jira NVGPU-13

Change-Id: Iac7d2850a55e82f1be80b71e23019fb284733941
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1454692
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/list.h b/drivers/gpu/nvgpu/include/nvgpu/list.h
index e6efa254..a56971d0 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/list.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/list.h
@@ -62,6 +62,15 @@ static inline void nvgpu_list_move(struct nvgpu_list_node *node, struct nvgpu_li
         nvgpu_list_add(node, head);
 }
 
+static inline void nvgpu_list_replace_init(struct nvgpu_list_node *old_node, struct nvgpu_list_node *new_node)
+{
+        new_node->next = old_node->next;
+        new_node->next->prev = new_node;
+        new_node->prev = old_node->prev;
+        new_node->prev->next = new_node;
+        nvgpu_init_list_node(old_node);
+}
+
 #define nvgpu_list_entry(ptr, type, member)     \
         type ## _from_ ## member(ptr)