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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>
This commit is contained in:
Leon Romanovsky 2017-06-15 13:14:13 +03:00 committed by Leon Romanovsky
parent 1830ba21b9
commit c729943a77
1 changed files with 8 additions and 5 deletions
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13
drivers/infiniband/core/netlink.c
View File

@ -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;
}