Re: [PATCH net-next v2] net: hdlc_x25: Remove unnecessary skb_reset_network_header calls

From: David Miller
Date: Wed Dec 09 2020 - 22:25:20 EST


From: Xie He <xie.he.0141@xxxxxxxxx>
Date: Tue, 8 Dec 2020 17:40:13 -0800

> 1. In x25_xmit, skb_reset_network_header is not necessary before we call
> lapb_data_request. The lapb module doesn't need skb->network_header.
> So there is no need to set skb->network_header before calling
> lapb_data_request.
>
> 2. In x25_data_indication (called by the lapb module after some data
> have been received), skb_reset_network_header is not necessary before we
> call netif_rx. After we call netif_rx, the code in net/core/dev.c will
> call skb_reset_network_header before handing the skb to upper layers
> (in __netif_receive_skb_core, called by __netif_receive_skb_one_core,
> called by __netif_receive_skb, called by process_backlog). So we don't
> need to call skb_reset_network_header by ourselves.
>
> Cc: Martin Schiller <ms@xxxxxxxxxx>
> Signed-off-by: Xie He <xie.he.0141@xxxxxxxxx>

Applied, thanks.