IB/core cleanup: Add const to args - agent_send_response

In order to support constant callers of agent_send_response we add const
specifiers to the its pointer arguments.

Adjust the call tree accordingly.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Hal Rosenstock <hal@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index ac54c27..fde33ac 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -111,8 +111,8 @@
 int rdma_addr_size(struct sockaddr *addr);
 
 int rdma_addr_find_smac_by_sgid(union ib_gid *sgid, u8 *smac, u16 *vlan_id);
-int rdma_addr_find_dmac_by_grh(union ib_gid *sgid, union ib_gid *dgid, u8 *smac,
-			       u16 *vlan_id);
+int rdma_addr_find_dmac_by_grh(const union ib_gid *sgid, const union ib_gid *dgid,
+			       u8 *smac, u16 *vlan_id);
 
 static inline u16 ib_addr_get_pkey(struct rdma_dev_addr *dev_addr)
 {
@@ -160,7 +160,7 @@
 }
 
 /* Important - sockaddr should be a union of sockaddr_in and sockaddr_in6 */
-static inline void rdma_gid2ip(struct sockaddr *out, union ib_gid *gid)
+static inline void rdma_gid2ip(struct sockaddr *out, const union ib_gid *gid)
 {
 	if (ipv6_addr_v4mapped((struct in6_addr *)gid)) {
 		struct sockaddr_in *out_in = (struct sockaddr_in *)out;