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| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2020-12-22 22:09:28 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-01-08 13:39:24 -0800 |
| commit | 43b5169d8355ccf26d726fbc75f083b2429113e4 (patch) | |
| tree | cd42fa95a161f2aa4a41c3bcb039ce283b2636ed /net/core/dev.c | |
| parent | ec24e11e0817404ef9e04b50170e1a68793cd9f5 (diff) | |
| download | linux-43b5169d8355ccf26d726fbc75f083b2429113e4.tar.bz2 | |
net, xdp: Introduce xdp_init_buff utility routine
Introduce xdp_init_buff utility routine to initialize xdp_buff fields
const over NAPI iterations (e.g. frame_sz or rxq pointer). Rely on
xdp_init_buff in all XDP capable drivers.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Shay Agroskin <shayagr@amazon.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Acked-by: Marcin Wojtas <mw@semihalf.com>
Link: https://lore.kernel.org/bpf/7f8329b6da1434dc2b05a77f2e800b29628a8913.1608670965.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 7afbb642e203..e6d758a3c2a9 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4606,11 +4606,11 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb, struct netdev_rx_queue *rxqueue; void *orig_data, *orig_data_end; u32 metalen, act = XDP_DROP; + u32 mac_len, frame_sz; __be16 orig_eth_type; struct ethhdr *eth; bool orig_bcast; int hlen, off; - u32 mac_len; /* Reinjected packets coming from act_mirred or similar should * not get XDP generic processing. @@ -4649,8 +4649,8 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb, xdp->data_hard_start = skb->data - skb_headroom(skb); /* SKB "head" area always have tailroom for skb_shared_info */ - xdp->frame_sz = (void *)skb_end_pointer(skb) - xdp->data_hard_start; - xdp->frame_sz += SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + frame_sz = (void *)skb_end_pointer(skb) - xdp->data_hard_start; + frame_sz += SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); orig_data_end = xdp->data_end; orig_data = xdp->data; @@ -4659,7 +4659,7 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb, orig_eth_type = eth->h_proto; rxqueue = netif_get_rxqueue(skb); - xdp->rxq = &rxqueue->xdp_rxq; + xdp_init_buff(xdp, frame_sz, &rxqueue->xdp_rxq); act = bpf_prog_run_xdp(xdp_prog, xdp); |