From be6d467b997f9e32aa9b27add06e7b0c8627a566 Mon Sep 17 00:00:00 2001 From: Karsten Graul Date: Thu, 1 Mar 2018 13:51:28 +0100 Subject: [PATCH] net/smc: remove unused fields from smc structures The daddr field holds the destination IPv4 address. The field was set but never used and can be removed. The addr field was a left-over from an earlier version of non-blocking connects and can be removed. The result of the call to kernel_getpeername is not used, the call can be removed. Non-blocking connects are working, so remove restriction comment. Signed-off-by: Karsten Graul Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- net/smc/af_smc.c | 15 ++++----------- net/smc/smc.h | 3 +-- net/smc/smc_core.c | 7 +++---- net/smc/smc_core.h | 1 - 4 files changed, 8 insertions(+), 18 deletions(-) diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index b90cbfdb9916..cda3d5314e3f 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -7,7 +7,6 @@ * applicable with RoCE-cards only * * Initial restrictions: - * - non-blocking connect postponed * - IPv6 support postponed * - support for alternate links postponed * - partial support for non-blocking sockets only @@ -345,7 +344,6 @@ static void smc_lgr_forget(struct smc_link_group *lgr) /* setup for RDMA connection of client */ static int smc_connect_rdma(struct smc_sock *smc) { - struct sockaddr_in *inaddr = (struct sockaddr_in *)smc->addr; struct smc_clc_msg_accept_confirm aclc; int local_contact = SMC_FIRST_CONTACT; struct smc_ib_device *smcibdev; @@ -399,8 +397,8 @@ static int smc_connect_rdma(struct smc_sock *smc) srv_first_contact = aclc.hdr.flag; mutex_lock(&smc_create_lgr_pending); - local_contact = smc_conn_create(smc, inaddr->sin_addr.s_addr, smcibdev, - ibport, &aclc.lcl, srv_first_contact); + local_contact = smc_conn_create(smc, smcibdev, ibport, &aclc.lcl, + srv_first_contact); if (local_contact < 0) { rc = local_contact; if (rc == -ENOMEM) @@ -518,7 +516,6 @@ static int smc_connect(struct socket *sock, struct sockaddr *addr, goto out_err; if (addr->sa_family != AF_INET) goto out_err; - smc->addr = addr; /* needed for nonblocking connect */ lock_sock(sk); switch (sk->sk_state) { @@ -726,7 +723,6 @@ static void smc_listen_work(struct work_struct *work) struct sock *newsmcsk = &new_smc->sk; struct smc_clc_msg_proposal *pclc; struct smc_ib_device *smcibdev; - struct sockaddr_in peeraddr; u8 buf[SMC_CLC_MAX_LEN]; struct smc_link *link; int reason_code = 0; @@ -782,13 +778,10 @@ static void smc_listen_work(struct work_struct *work) goto decline_rdma; } - /* get address of the peer connected to the internal TCP socket */ - kernel_getpeername(newclcsock, (struct sockaddr *)&peeraddr); - /* allocate connection / link group */ mutex_lock(&smc_create_lgr_pending); - local_contact = smc_conn_create(new_smc, peeraddr.sin_addr.s_addr, - smcibdev, ibport, &pclc->lcl, 0); + local_contact = smc_conn_create(new_smc, smcibdev, ibport, &pclc->lcl, + 0); if (local_contact < 0) { rc = local_contact; if (rc == -ENOMEM) diff --git a/net/smc/smc.h b/net/smc/smc.h index 9895c190d146..268cdf11533c 100644 --- a/net/smc/smc.h +++ b/net/smc/smc.h @@ -172,7 +172,6 @@ struct smc_sock { /* smc sock container */ struct sock sk; struct socket *clcsock; /* internal tcp socket */ struct smc_connection conn; /* smc connection */ - struct sockaddr *addr; /* inet connect address */ struct smc_sock *listen_smc; /* listen parent */ struct work_struct tcp_listen_work;/* handle tcp socket accepts */ struct work_struct smc_listen_work;/* prepare new accept socket */ @@ -264,7 +263,7 @@ static inline bool using_ipsec(struct smc_sock *smc) struct smc_clc_msg_local; void smc_conn_free(struct smc_connection *conn); -int smc_conn_create(struct smc_sock *smc, __be32 peer_in_addr, +int smc_conn_create(struct smc_sock *smc, struct smc_ib_device *smcibdev, u8 ibport, struct smc_clc_msg_local *lcl, int srv_first_contact); struct sock *smc_accept_dequeue(struct sock *parent, struct socket *new_sock); diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 2424c7100aaf..bc11d06e38ae 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -144,7 +144,7 @@ free: } /* create a new SMC link group */ -static int smc_lgr_create(struct smc_sock *smc, __be32 peer_in_addr, +static int smc_lgr_create(struct smc_sock *smc, struct smc_ib_device *smcibdev, u8 ibport, char *peer_systemid, unsigned short vlan_id) { @@ -161,7 +161,6 @@ static int smc_lgr_create(struct smc_sock *smc, __be32 peer_in_addr, } lgr->role = smc->listen_smc ? SMC_SERV : SMC_CLNT; lgr->sync_err = false; - lgr->daddr = peer_in_addr; memcpy(lgr->peer_systemid, peer_systemid, SMC_SYSTEMID_LEN); lgr->vlan_id = vlan_id; rwlock_init(&lgr->sndbufs_lock); @@ -400,7 +399,7 @@ static int smc_link_determine_gid(struct smc_link_group *lgr) } /* create a new SMC connection (and a new link group if necessary) */ -int smc_conn_create(struct smc_sock *smc, __be32 peer_in_addr, +int smc_conn_create(struct smc_sock *smc, struct smc_ib_device *smcibdev, u8 ibport, struct smc_clc_msg_local *lcl, int srv_first_contact) { @@ -457,7 +456,7 @@ int smc_conn_create(struct smc_sock *smc, __be32 peer_in_addr, create: if (local_contact == SMC_FIRST_CONTACT) { - rc = smc_lgr_create(smc, peer_in_addr, smcibdev, ibport, + rc = smc_lgr_create(smc, smcibdev, ibport, lcl->id_for_peer, vlan_id); if (rc) goto out; diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h index fe691bf9af91..7852c3fabf12 100644 --- a/net/smc/smc_core.h +++ b/net/smc/smc_core.h @@ -124,7 +124,6 @@ struct smc_rtoken { /* address/key of remote RMB */ struct smc_link_group { struct list_head list; enum smc_lgr_role role; /* client or server */ - __be32 daddr; /* destination ip address */ struct smc_link lnk[SMC_LINKS_PER_LGR_MAX]; /* smc link */ char peer_systemid[SMC_SYSTEMID_LEN]; /* unique system_id of peer */ -- 2.30.2