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Date: Tue, 16 Apr 2024 11:36:46 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: Richard Gobert <richardbgobert@...il.com>, davem@...emloft.net, 
	edumazet@...gle.com, kuba@...nel.org, dsahern@...nel.org, 
	willemdebruijn.kernel@...il.com, shuah@...nel.org, netdev@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH net-next v7 1/3] net: gro: add {inner_}network_offset to
 napi_gro_cb

On Fri, 2024-04-12 at 17:55 +0200, Richard Gobert wrote:
> This patch adds network_offset and inner_network_offset to napi_gro_cb, and
> makes sure both are set correctly. In the common path there's only one
> write (skb_gro_reset_offset).
> 
> Signed-off-by: Richard Gobert <richardbgobert@...il.com>

Does not apply cleanly to net-next. You have to wait until the net
dependency is merged into net-next before posting.

> ---
>  drivers/net/geneve.c           |  1 +
>  drivers/net/vxlan/vxlan_core.c |  1 +
>  include/net/gro.h              | 18 ++++++++++++++++--
>  net/8021q/vlan_core.c          |  2 ++
>  net/core/gro.c                 |  1 +
>  net/ethernet/eth.c             |  1 +
>  net/ipv4/af_inet.c             |  5 +----
>  net/ipv4/gre_offload.c         |  1 +
>  net/ipv6/ip6_offload.c         |  8 ++++----
>  9 files changed, 28 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
> index 9c18a39b0d0c..a6256ea1f5bc 100644
> --- a/drivers/net/geneve.c
> +++ b/drivers/net/geneve.c
> @@ -545,6 +545,7 @@ static struct sk_buff *geneve_gro_receive(struct sock *sk,
>  	if (!ptype)
>  		goto out;
>  
> +	NAPI_GRO_CB(skb)->inner_network_offset = hlen;
>  	pp = call_gro_receive(ptype->callbacks.gro_receive, head, skb);
>  	flush = 0;
>  
> diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
> index 6fb182d9d6e7..9fb93c3953c1 100644
> --- a/drivers/net/vxlan/vxlan_core.c
> +++ b/drivers/net/vxlan/vxlan_core.c
> @@ -754,6 +754,7 @@ static struct sk_buff *vxlan_gpe_gro_receive(struct sock *sk,
>  
>  	vh = vxlan_gro_prepare_receive(sk, head, skb, &grc);
>  	if (vh) {
> +		NAPI_GRO_CB(skb)->inner_network_offset = skb_gro_offset(skb);
>  		if (!vxlan_parse_gpe_proto(vh, &protocol))
>  			goto out;
>  		ptype = gro_find_receive_by_type(protocol);

What about vxlan_gro_receive? and fou/gue?

Side note: the latter apparently exist mainly to make UDP-related
changes more difficult, can we deprecated them once for all?

Thank,

Paolo


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