Messages in this thread Patch in this message | | | From | Martin Schiller <> | Subject | [PATCH 3/4] isdn/i4l/isdn_x25iface: call skb_reset_network_header | Date | Wed, 3 Apr 2019 07:01:17 +0200 |
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... after skb_push() / skb_pull().
This fixes the output of tcpdump.
Signed-off-by: Martin Schiller <ms@dev.tdt.de> --- drivers/isdn/i4l/isdn_x25iface.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/isdn/i4l/isdn_x25iface.c b/drivers/isdn/i4l/isdn_x25iface.c index 48bfbcb4a09d..ffd50fa47111 100644 --- a/drivers/isdn/i4l/isdn_x25iface.c +++ b/drivers/isdn/i4l/isdn_x25iface.c @@ -194,6 +194,7 @@ static int isdn_x25iface_receive(struct concap_proto *cprot, struct sk_buff *skb if (((ix25_pdata_t *)(cprot->proto_data)) ->state == WAN_CONNECTED) { if (skb_push(skb, 1)) { + skb_reset_network_header(skb); skb->data[0] = X25_IFACE_DATA; skb->protocol = x25_type_trans(skb, cprot->net_dev); netif_rx(skb); @@ -225,6 +226,7 @@ static int isdn_x25iface_connect_ind(struct concap_proto *cprot) skb = dev_alloc_skb(1); if (skb) { skb_put_u8(skb, X25_IFACE_CONNECT); + skb_reset_network_header(skb); skb->protocol = x25_type_trans(skb, cprot->net_dev); netif_rx(skb); return 0; @@ -254,6 +256,7 @@ static int isdn_x25iface_disconn_ind(struct concap_proto *cprot) skb = dev_alloc_skb(1); if (skb) { skb_put_u8(skb, X25_IFACE_DISCONNECT); + skb_reset_network_header(skb); skb->protocol = x25_type_trans(skb, cprot->net_dev); netif_rx(skb); return 0; @@ -278,10 +281,14 @@ static int isdn_x25iface_xmit(struct concap_proto *cprot, struct sk_buff *skb) case X25_IFACE_DATA: if (*state == WAN_CONNECTED) { skb_pull(skb, 1); + skb_reset_network_header(skb); netif_trans_update(cprot->net_dev); ret = (cprot->dops->data_req(cprot, skb)); /* prepare for future retransmissions */ - if (ret) skb_push(skb, 1); + if (ret) { + skb_push(skb, 1); + skb_reset_network_header(skb); + } return ret; } illegal_state_warn(*state, firstbyte); -- 2.11.0
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