diff options
Diffstat (limited to 'net/hsr')
| -rw-r--r-- | net/hsr/Kconfig | 1 | ||||
| -rw-r--r-- | net/hsr/Makefile | 1 | ||||
| -rw-r--r-- | net/hsr/hsr_framereg.c | 8 |
3 files changed, 10 insertions, 0 deletions
diff --git a/net/hsr/Kconfig b/net/hsr/Kconfig index 4b683fd0abf1..9c58f8763997 100644 --- a/net/hsr/Kconfig +++ b/net/hsr/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # IEC 62439-3 High-availability Seamless Redundancy # diff --git a/net/hsr/Makefile b/net/hsr/Makefile index e45757fc477f..75df90d3b416 100644 --- a/net/hsr/Makefile +++ b/net/hsr/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for HSR # diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index 9fa9abd83018..2d7a19750436 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -365,6 +365,14 @@ void hsr_prune_nodes(struct timer_list *t) rcu_read_lock(); list_for_each_entry_rcu(node, &hsr->node_db, mac_list) { + /* Don't prune own node. Neither time_in[HSR_PT_SLAVE_A] + * nor time_in[HSR_PT_SLAVE_B], will ever be updated for + * the master port. Thus the master node will be repeatedly + * pruned leading to packet loss. + */ + if (hsr_addr_is_self(hsr, node->macaddress_A)) + continue; + /* Shorthand */ time_a = node->time_in[HSR_PT_SLAVE_A]; time_b = node->time_in[HSR_PT_SLAVE_B]; |