RDMA/netlink: Reduce indirection access to cb_table

Introduce intermediate variable to store access to fields
of cb_table.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>

diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index 484d6a8..e36c39e 100644 (file)
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -155,12 +155,15 @@ static int rdma_nl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
        unsigned int op = RDMA_NL_GET_OP(type);
        struct netlink_callback cb = {};
        struct netlink_dump_control c = {};
+       const struct rdma_nl_cbs *cb_table;
        int ret;
 
        if (!is_nl_valid(index, op))
                return -EINVAL;
 
-       if ((rdma_nl_types[index].cb_table[op].flags & RDMA_NL_ADMIN_PERM) &&
+       cb_table = rdma_nl_types[type].cb_table;
+
+       if ((cb_table[op].flags & RDMA_NL_ADMIN_PERM) &&
            !netlink_capable(skb, CAP_NET_ADMIN))
                return -EPERM;
 
@@ -172,14 +175,14 @@ static int rdma_nl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
            (index == RDMA_NL_LS && op == RDMA_NL_LS_OP_SET_TIMEOUT)) {
                cb.skb = skb;
                cb.nlh = nlh;
-               cb.dump = rdma_nl_types[index].cb_table[op].dump;
+               cb.dump = cb_table[op].dump;
                return cb.dump(skb, &cb);
        } else {
-               c.dump = rdma_nl_types[index].cb_table[op].dump;
+               c.dump = cb_table[op].dump;
                return netlink_dump_start(nls, skb, nlh, &c);
        }
-       if (rdma_nl_types[index].cb_table[op].doit)
-               ret = rdma_nl_types[index].cb_table[op].doit(skb, nlh, extack);
+       if (cb_table[op].doit)
+               ret = cb_table[op].doit(skb, nlh, extack);
        return ret;
 
 }