diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-01-02 12:50:12 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-01-08 18:11:05 +0100 |
| commit | 0befd061af59c4ba426588930f09eb9ea2475534 (patch) | |
| tree | 88f04d0bf5d46804828c7870b0b0d439ac4ac9e2 | |
| parent | a7f87b47e67e4341f6175cdb80e5c2eaadf30dcb (diff) | |
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>
| -rw-r--r-- | include/net/netfilter/nf_tables.h | 3 | ||||
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 6 |
2 files changed, 3 insertions, 6 deletions
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index e040b6151acc..e3ec02fd0f67 100644 --- 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 15773a3189ce..fa564dac66a2 100644 --- 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); |