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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-02 10:54:12 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-02 10:54:12 +0300 |
| commit | 5599617ec0719dba3b1f85a4abca2a6c93368ae3 (patch) | |
| tree | 7d2f9bb6a538ee8ed5cfa391f2cfa72a3e2daa9f /net/hsr/hsr_framereg.c | |
| parent | 8d19d7d9dbc25d1a1ffa602ed9eff25a88c98163 (diff) | |
| parent | 66fd7a66e8b9e11e49f46ea77910f935c4dee5c3 (diff) | |
| download | linux-5599617ec0719dba3b1f85a4abca2a6c93368ae3.tar.xz | |
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Git got absolutely destroyed with all our cherry-picking from
drm-intel-next-queued to various branches. It ended up inserting
intel_crtc_page_flip 2x even in intel_display.c.
Backmerge to get back to sanity.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'net/hsr/hsr_framereg.c')
| -rw-r--r-- | net/hsr/hsr_framereg.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index bace124d14ef..7ea925816f79 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -177,17 +177,17 @@ struct hsr_node *hsr_get_node(struct list_head *node_db, struct sk_buff *skb, return node; } - if (!is_sup) - return NULL; /* Only supervision frame may create node entry */ + /* Everyone may create a node entry, connected node to a HSR device. */ - if (ethhdr->h_proto == htons(ETH_P_PRP)) { + if (ethhdr->h_proto == htons(ETH_P_PRP) + || ethhdr->h_proto == htons(ETH_P_HSR)) { /* Use the existing sequence_nr from the tag as starting point * for filtering duplicate frames. */ seq_out = hsr_get_skb_sequence_nr(skb) - 1; } else { WARN_ONCE(1, "%s: Non-HSR frame\n", __func__); - seq_out = 0; + seq_out = HSR_SEQNR_START; } return hsr_add_node(node_db, ethhdr->h_source, seq_out); @@ -200,17 +200,25 @@ struct hsr_node *hsr_get_node(struct list_head *node_db, struct sk_buff *skb, void hsr_handle_sup_frame(struct sk_buff *skb, struct hsr_node *node_curr, struct hsr_port *port_rcv) { + struct ethhdr *ethhdr; struct hsr_node *node_real; struct hsr_sup_payload *hsr_sp; struct list_head *node_db; int i; - skb_pull(skb, sizeof(struct hsr_ethhdr_sp)); - hsr_sp = (struct hsr_sup_payload *) skb->data; + ethhdr = (struct ethhdr *) skb_mac_header(skb); - if (ether_addr_equal(eth_hdr(skb)->h_source, hsr_sp->MacAddressA)) - /* Not sent from MacAddressB of a PICS_SUBS capable node */ - goto done; + /* Leave the ethernet header. */ + skb_pull(skb, sizeof(struct ethhdr)); + + /* And leave the HSR tag. */ + if (ethhdr->h_proto == htons(ETH_P_HSR)) + skb_pull(skb, sizeof(struct hsr_tag)); + + /* And leave the HSR sup tag. */ + skb_pull(skb, sizeof(struct hsr_sup_tag)); + + hsr_sp = (struct hsr_sup_payload *) skb->data; /* Merge node_curr (registered on MacAddressB) into node_real */ node_db = &port_rcv->hsr->node_db; @@ -225,7 +233,7 @@ void hsr_handle_sup_frame(struct sk_buff *skb, struct hsr_node *node_curr, /* Node has already been merged */ goto done; - ether_addr_copy(node_real->MacAddressB, eth_hdr(skb)->h_source); + ether_addr_copy(node_real->MacAddressB, ethhdr->h_source); for (i = 0; i < HSR_PT_PORTS; i++) { if (!node_curr->time_in_stale[i] && time_after(node_curr->time_in[i], node_real->time_in[i])) { @@ -241,7 +249,7 @@ void hsr_handle_sup_frame(struct sk_buff *skb, struct hsr_node *node_curr, kfree_rcu(node_curr, rcu_head); done: - skb_push(skb, sizeof(struct hsr_ethhdr_sp)); + skb_push(skb, sizeof(struct hsrv1_ethhdr_sp)); } |