From 995161edfdb830fd83a652495324e26e0a4bd694 Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Mon, 26 Feb 2024 16:09:54 +0100 Subject: net: hsr: Fix typo in the hsr_forward_do() function comment Correct type in the hsr_forward_do() comment. Signed-off-by: Lukasz Majewski Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller --- net/hsr/hsr_forward.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/hsr') diff --git a/net/hsr/hsr_forward.c b/net/hsr/hsr_forward.c index 80cdc6f6b34c..2afe28712a7a 100644 --- a/net/hsr/hsr_forward.c +++ b/net/hsr/hsr_forward.c @@ -435,7 +435,7 @@ static void hsr_forward_do(struct hsr_frame_info *frame) continue; /* Don't send frame over port where it has been sent before. - * Also fro SAN, this shouldn't be done. + * Also for SAN, this shouldn't be done. */ if (!frame->is_from_san && hsr_register_frame_out(port, frame->node_src, -- cgit v1.2.3 From 51dd4ee0372228ffb0f7709fa7aa0678d4199d06 Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Wed, 28 Feb 2024 09:56:44 +0100 Subject: net: hsr: Use correct offset for HSR TLV values in supervisory HSR frames Current HSR implementation uses following supervisory frame (even for HSRv1 the HSR tag is not is not present): 00000000: 01 15 4e 00 01 2d XX YY ZZ 94 77 10 88 fb 00 01 00000010: 7e 1c 17 06 XX YY ZZ 94 77 10 1e 06 XX YY ZZ 94 00000020: 77 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 The current code adds extra two bytes (i.e. sizeof(struct hsr_sup_tlv)) when offset for skb_pull() is calculated. This is wrong, as both 'struct hsrv1_ethhdr_sp' and 'hsrv0_ethhdr_sp' already have 'struct hsr_sup_tag' defined in them, so there is no need for adding extra two bytes. This code was working correctly as with no RedBox support, the check for HSR_TLV_EOT (0x00) was off by two bytes, which were corresponding to zeroed padded bytes for minimal packet size. Fixes: eafaa88b3eb7 ("net: hsr: Add support for redbox supervision frames") Signed-off-by: Lukasz Majewski Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20240228085644.3618044-1-lukma@denx.de Signed-off-by: Paolo Abeni --- net/hsr/hsr_forward.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/hsr') diff --git a/net/hsr/hsr_forward.c b/net/hsr/hsr_forward.c index 2afe28712a7a..5d68cb181695 100644 --- a/net/hsr/hsr_forward.c +++ b/net/hsr/hsr_forward.c @@ -83,7 +83,7 @@ static bool is_supervision_frame(struct hsr_priv *hsr, struct sk_buff *skb) return false; /* Get next tlv */ - total_length += sizeof(struct hsr_sup_tlv) + hsr_sup_tag->tlv.HSR_TLV_length; + total_length += hsr_sup_tag->tlv.HSR_TLV_length; if (!pskb_may_pull(skb, total_length)) return false; skb_pull(skb, total_length); -- cgit v1.2.3