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authorLinus Torvalds2020-09-03 18:50:48 -0700
committerLinus Torvalds2020-09-03 18:50:48 -0700
commit3e8d3bdc2a757cc6be5470297947799a7df445cc (patch)
treefcb5dd872a7d240c0d11b1800f282ffed00d0f97 /net/smc
parent8381979dfa056dee4df83d1b98740b68776ae8ac (diff)
parentb61ac5bb420adce0c9b79c6b9e1c854af083e33f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller: 1) Use netif_rx_ni() when necessary in batman-adv stack, from Jussi Kivilinna. 2) Fix loss of RTT samples in rxrpc, from David Howells. 3) Memory leak in hns_nic_dev_probe(), from Dignhao Liu. 4) ravb module cannot be unloaded, fix from Yuusuke Ashizuka. 5) We disable BH for too lokng in sctp_get_port_local(), add a cond_resched() here as well, from Xin Long. 6) Fix memory leak in st95hf_in_send_cmd, from Dinghao Liu. 7) Out of bound access in bpf_raw_tp_link_fill_link_info(), from Yonghong Song. 8) Missing of_node_put() in mt7530 DSA driver, from Sumera Priyadarsini. 9) Fix crash in bnxt_fw_reset_task(), from Michael Chan. 10) Fix geneve tunnel checksumming bug in hns3, from Yi Li. 11) Memory leak in rxkad_verify_response, from Dinghao Liu. 12) In tipc, don't use smp_processor_id() in preemptible context. From Tuong Lien. 13) Fix signedness issue in mlx4 memory allocation, from Shung-Hsi Yu. 14) Missing clk_disable_prepare() in gemini driver, from Dan Carpenter. 15) Fix ABI mismatch between driver and firmware in nfp, from Louis Peens. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (110 commits) net/smc: fix sock refcounting in case of termination net/smc: reset sndbuf_desc if freed net/smc: set rx_off for SMCR explicitly net/smc: fix toleration of fake add_link messages tg3: Fix soft lockup when tg3_reset_task() fails. doc: net: dsa: Fix typo in config code sample net: dp83867: Fix WoL SecureOn password nfp: flower: fix ABI mismatch between driver and firmware tipc: fix shutdown() of connectionless socket ipv6: Fix sysctl max for fib_multipath_hash_policy drivers/net/wan/hdlc: Change the default of hard_header_len to 0 net: gemini: Fix another missing clk_disable_unprepare() in probe net: bcmgenet: fix mask check in bcmgenet_validate_flow() amd-xgbe: Add support for new port mode net: usb: dm9601: Add USB ID of Keenetic Plus DSL vhost: fix typo in error message net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init() pktgen: fix error message with wrong function name net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode cxgb4: fix thermal zone device registration ...
Diffstat (limited to 'net/smc')
-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 3b5c374c6d2c..0e7409e469c0 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;
}