netdev - [RFC net-next 04/22] net: xen-netfront: initialize mb bit of xdp

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Message-Id: <041e2c04a90dc2f9cb19815d523f24412164cd7e.1595503780.git.lorenzo@kernel.org>
Date:   Thu, 23 Jul 2020 13:42:16 +0200
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     netdev@...r.kernel.org
Cc:     bpf@...r.kernel.org, davem@...emloft.net, ast@...nel.org,
        brouer@...hat.com, daniel@...earbox.net,
        lorenzo.bianconi@...hat.com, echaudro@...hat.com,
        sameehj@...zon.com, kuba@...nel.org
Subject: [RFC net-next 04/22] net: xen-netfront: initialize mb bit of xdp_buff to 0

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@...nel.org>
---
 drivers/net/xen-netfront.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index ed995df19247..ce862b08bb3b 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -868,6 +868,7 @@ static u32 xennet_run_xdp(struct netfront_queue *queue, struct page *pdata,
 	xdp->data_end = xdp->data + len;
 	xdp->rxq = &queue->xdp_rxq;
 	xdp->frame_sz = XEN_PAGE_SIZE - XDP_PACKET_HEADROOM;
+	xdp->mb = 0;
 
 	act = bpf_prog_run_xdp(prog, xdp);
 	switch (act) {
-- 
2.26.2