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-rw-r--r--net/smc/smc_close.c15
-rw-r--r--net/smc/smc_core.c3
-rw-r--r--net/smc/smc_llc.c15
3 files changed, 25 insertions, 8 deletions
diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c
index 290270c821ca..35e30d39510d 100644
--- a/net/smc/smc_close.c
+++ b/net/smc/smc_close.c
@@ -116,7 +116,6 @@ static void smc_close_cancel_work(struct smc_sock *smc)
cancel_work_sync(&smc->conn.close_work);
cancel_delayed_work_sync(&smc->conn.tx_work);
lock_sock(sk);
- sk->sk_state = SMC_CLOSED;
}
/* terminate smc socket abnormally - active abort
@@ -134,22 +133,22 @@ void smc_close_active_abort(struct smc_sock *smc)
}
switch (sk->sk_state) {
case SMC_ACTIVE:
- sk->sk_state = SMC_PEERABORTWAIT;
- smc_close_cancel_work(smc);
- sk->sk_state = SMC_CLOSED;
- sock_put(sk); /* passive closing */
- break;
case SMC_APPCLOSEWAIT1:
case SMC_APPCLOSEWAIT2:
+ sk->sk_state = SMC_PEERABORTWAIT;
smc_close_cancel_work(smc);
+ if (sk->sk_state != SMC_PEERABORTWAIT)
+ break;
sk->sk_state = SMC_CLOSED;
- sock_put(sk); /* postponed passive closing */
+ sock_put(sk); /* (postponed) passive closing */
break;
case SMC_PEERCLOSEWAIT1:
case SMC_PEERCLOSEWAIT2:
case SMC_PEERFINCLOSEWAIT:
sk->sk_state = SMC_PEERABORTWAIT;
smc_close_cancel_work(smc);
+ if (sk->sk_state != SMC_PEERABORTWAIT)
+ break;
sk->sk_state = SMC_CLOSED;
smc_conn_free(&smc->conn);
release_clcsock = true;
@@ -159,6 +158,8 @@ void smc_close_active_abort(struct smc_sock *smc)
case SMC_APPFINCLOSEWAIT:
sk->sk_state = SMC_PEERABORTWAIT;
smc_close_cancel_work(smc);
+ if (sk->sk_state != SMC_PEERABORTWAIT)
+ break;
sk->sk_state = SMC_CLOSED;
smc_conn_free(&smc->conn);
release_clcsock = true;
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index b42fa3b00d00..a406627b1d55 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1356,6 +1356,8 @@ create:
if (ini->is_smcd) {
conn->rx_off = sizeof(struct smcd_cdc_msg);
smcd_cdc_rx_init(conn); /* init tasklet for this conn */
+ } else {
+ conn->rx_off = 0;
}
#ifndef KERNEL_HAS_ATOMIC64
spin_lock_init(&conn->acurs_lock);
@@ -1777,6 +1779,7 @@ int smc_buf_create(struct smc_sock *smc, bool is_smcd)
list_del(&smc->conn.sndbuf_desc->list);
mutex_unlock(&smc->conn.lgr->sndbufs_lock);
smc_buf_free(smc->conn.lgr, false, smc->conn.sndbuf_desc);
+ smc->conn.sndbuf_desc = NULL;
}
return rc;
}
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index df5b0a6ea848..3ea33466ebe9 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -841,6 +841,9 @@ int smc_llc_cli_add_link(struct smc_link *link, struct smc_llc_qentry *qentry)
struct smc_init_info ini;
int lnk_idx, rc = 0;
+ if (!llc->qp_mtu)
+ goto out_reject;
+
ini.vlan_id = lgr->vlan_id;
smc_pnet_find_alt_roce(lgr, &ini, link->smcibdev);
if (!memcmp(llc->sender_gid, link->peer_gid, SMC_GID_SIZE) &&
@@ -917,10 +920,20 @@ out:
kfree(qentry);
}
+static bool smc_llc_is_empty_llc_message(union smc_llc_msg *llc)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(llc->raw.data); i++)
+ if (llc->raw.data[i])
+ return false;
+ return true;
+}
+
static bool smc_llc_is_local_add_link(union smc_llc_msg *llc)
{
if (llc->raw.hdr.common.type == SMC_LLC_ADD_LINK &&
- !llc->add_link.qp_mtu && !llc->add_link.link_num)
+ smc_llc_is_empty_llc_message(llc))
return true;
return false;
}