netfilter: nf_tables: remove nft_dereference()

This macro is unnecessary, it just hides details for one single caller.
nfnl_dereference() is just enough.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index e040b61..e3ec02f 100644 (file)
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -1113,9 +1113,6 @@ void nft_trace_init(struct nft_traceinfo *info, const struct nft_pktinfo *pkt,
 
 void nft_trace_notify(struct nft_traceinfo *info);
 
-#define nft_dereference(p)                                     \
-       nfnl_dereference(p, NFNL_SUBSYS_NFTABLES)
-
 #define MODULE_ALIAS_NFT_FAMILY(family)        \
        MODULE_ALIAS("nft-afinfo-" __stringify(family))
 

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 15773a3..fa564da 100644 (file)
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1222,13 +1222,13 @@ static struct nft_stats __percpu *nft_stats_alloc(const struct nlattr *attr)
 static void nft_chain_stats_replace(struct nft_base_chain *chain,
                                    struct nft_stats __percpu *newstats)
 {
+       struct nft_stats __percpu *oldstats;
+
        if (newstats == NULL)
                return;
 
        if (chain->stats) {
-               struct nft_stats __percpu *oldstats =
-                               nft_dereference(chain->stats);
-
+               oldstats = nfnl_dereference(chain->stats, NFNL_SUBSYS_NFTABLES);
                rcu_assign_pointer(chain->stats, newstats);
                synchronize_rcu();
                free_percpu(oldstats);