Thread (26 messages) flat view 26 messages, 4 authors, 2020-07-28

[RFC net-next 02/22] xdp: initialize xdp_buff mb bit to 0 in netif_receive_generic_xdp

From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: 2020-07-23 11:43:09
Also in: bpf
Subsystem: networking [general], the rest · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

Initialize multi-buffer bit (mb) to 0 in xdp_buff data structure.
This is a preliminary patch to enable xdp multi-buffer support.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 net/core/dev.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/net/core/dev.c b/net/core/dev.c
index 316349f6cea5..eb3e54df198c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4641,6 +4641,7 @@ static u32 netif_receive_generic_xdp(struct sk_buff *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));
+	xdp->mb = 0;
 
 	orig_data_end = xdp->data_end;
 	orig_data = xdp->data;
-- 
2.26.2
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