diff mbox series

[RFC,net-next,17/22] net: tun: initialize mb bit in xdp_buff to 0

Message ID f514de2ba0218f57b8803bfc3dcacc14786ee2e8.1595503780.git.lorenzo@kernel.org
State RFC
Delegated to: BPF Maintainers
Headers show
Series Introduce mb bit in xdp_buff/xdp_frame | expand

Commit Message

Lorenzo Bianconi July 23, 2020, 11:42 a.m. UTC 
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>
---
 drivers/net/tun.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 7adeb91bd368..7007fc344460 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1674,6 +1674,7 @@  static struct sk_buff *tun_build_skb(struct tun_struct *tun,
 		xdp.data_end = xdp.data + len;
 		xdp.rxq = &tfile->xdp_rxq;
 		xdp.frame_sz = buflen;
+		xdp.mb = 0;
 
 		act = bpf_prog_run_xdp(xdp_prog, &xdp);
 		if (act == XDP_REDIRECT || act == XDP_TX) {
@@ -2421,6 +2422,7 @@  static int tun_xdp_one(struct tun_struct *tun,
 		xdp_set_data_meta_invalid(xdp);
 		xdp->rxq = &tfile->xdp_rxq;
 		xdp->frame_sz = buflen;
+		xdp->mb = 0;
 
 		act = bpf_prog_run_xdp(xdp_prog, xdp);
 		err = tun_xdp_act(tun, xdp_prog, xdp, act);