diff options
| author | Ka-Cheong Poon <ka-cheong.poon@oracle.com> | 2018-07-30 22:48:42 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-08-01 09:32:35 -0700 |
| commit | e65d4d96334e3ff4fe0064612a93a51c63de08de (patch) | |
| tree | 3bbc43d81b1e59665ceae7f412c70be52c29d89c /net/rds/ib.c | |
| parent | f394ad28feffbeebab77c8bf9a203bd49b957c9a (diff) | |
| download | linux-e65d4d96334e3ff4fe0064612a93a51c63de08de.tar.bz2 | |
rds: Remove IPv6 dependency
This patch removes the IPv6 dependency from RDS.
Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib.c')
| -rw-r--r-- | net/rds/ib.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/net/rds/ib.c b/net/rds/ib.c index a4245c42d43b..89c6333ecd39 100644 --- a/net/rds/ib.c +++ b/net/rds/ib.c @@ -321,6 +321,7 @@ static int rds_ib_conn_info_visitor(struct rds_connection *conn, return 1; } +#if IS_ENABLED(CONFIG_IPV6) /* IPv6 version of rds_ib_conn_info_visitor(). */ static int rds6_ib_conn_info_visitor(struct rds_connection *conn, void *buffer) @@ -357,6 +358,7 @@ static int rds6_ib_conn_info_visitor(struct rds_connection *conn, } return 1; } +#endif static void rds_ib_ic_info(struct socket *sock, unsigned int len, struct rds_info_iterator *iter, @@ -370,6 +372,7 @@ static void rds_ib_ic_info(struct socket *sock, unsigned int len, sizeof(struct rds_info_rdma_connection)); } +#if IS_ENABLED(CONFIG_IPV6) /* IPv6 version of rds_ib_ic_info(). */ static void rds6_ib_ic_info(struct socket *sock, unsigned int len, struct rds_info_iterator *iter, @@ -382,6 +385,7 @@ static void rds6_ib_ic_info(struct socket *sock, unsigned int len, buffer, sizeof(struct rds6_info_rdma_connection)); } +#endif /* * Early RDS/IB was built to only bind to an address if there is an IPoIB @@ -398,7 +402,9 @@ static int rds_ib_laddr_check(struct net *net, const struct in6_addr *addr, { int ret; struct rdma_cm_id *cm_id; +#if IS_ENABLED(CONFIG_IPV6) struct sockaddr_in6 sin6; +#endif struct sockaddr_in sin; struct sockaddr *sa; bool isv4; @@ -418,6 +424,7 @@ static int rds_ib_laddr_check(struct net *net, const struct in6_addr *addr, sin.sin_addr.s_addr = addr->s6_addr32[3]; sa = (struct sockaddr *)&sin; } else { +#if IS_ENABLED(CONFIG_IPV6) memset(&sin6, 0, sizeof(sin6)); sin6.sin6_family = AF_INET6; sin6.sin6_addr = *addr; @@ -432,21 +439,30 @@ static int rds_ib_laddr_check(struct net *net, const struct in6_addr *addr, if (ipv6_addr_type(addr) & IPV6_ADDR_LINKLOCAL) { struct net_device *dev; - if (scope_id == 0) - return -EADDRNOTAVAIL; + if (scope_id == 0) { + ret = -EADDRNOTAVAIL; + goto out; + } /* Use init_net for now as RDS is not network * name space aware. */ dev = dev_get_by_index(&init_net, scope_id); - if (!dev) - return -EADDRNOTAVAIL; + if (!dev) { + ret = -EADDRNOTAVAIL; + goto out; + } if (!ipv6_chk_addr(&init_net, addr, dev, 1)) { dev_put(dev); - return -EADDRNOTAVAIL; + ret = -EADDRNOTAVAIL; + goto out; } dev_put(dev); } +#else + ret = -EADDRNOTAVAIL; + goto out; +#endif } /* rdma_bind_addr will only succeed for IB & iWARP devices */ @@ -461,6 +477,7 @@ static int rds_ib_laddr_check(struct net *net, const struct in6_addr *addr, addr, scope_id, ret, cm_id->device ? cm_id->device->node_type : -1); +out: rdma_destroy_id(cm_id); return ret; @@ -491,7 +508,9 @@ void rds_ib_exit(void) rds_ib_set_unloading(); synchronize_rcu(); rds_info_deregister_func(RDS_INFO_IB_CONNECTIONS, rds_ib_ic_info); +#if IS_ENABLED(CONFIG_IPV6) rds_info_deregister_func(RDS6_INFO_IB_CONNECTIONS, rds6_ib_ic_info); +#endif rds_ib_unregister_client(); rds_ib_destroy_nodev_conns(); rds_ib_sysctl_exit(); @@ -553,7 +572,9 @@ int rds_ib_init(void) rds_trans_register(&rds_ib_transport); rds_info_register_func(RDS_INFO_IB_CONNECTIONS, rds_ib_ic_info); +#if IS_ENABLED(CONFIG_IPV6) rds_info_register_func(RDS6_INFO_IB_CONNECTIONS, rds6_ib_ic_info); +#endif goto out; |