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net: xdp: avoid output parameters when querying XDP prog

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The output parameters will get unwieldy if we want to add more
information about the program.  Simply pass the entire
struct netdev_bpf in.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski
2017-12-01 15:08:55 -08:00
committed by Daniel Borkmann
parent 4485166519
commit 118b4aa25d
3 changed files with 21 additions and 12 deletions
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6
net/core/rtnetlink.c
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@@ -1261,6 +1261,7 @@ static u8 rtnl_xdp_attached_mode(struct net_device *dev, u32 *prog_id)
{
const struct net_device_ops *ops = dev->netdev_ops;
const struct bpf_prog *generic_xdp_prog;
struct netdev_bpf xdp;
ASSERT_RTNL();
@@ -1273,7 +1274,10 @@ static u8 rtnl_xdp_attached_mode(struct net_device *dev, u32 *prog_id)
if (!ops->ndo_bpf)
return XDP_ATTACHED_NONE;
return __dev_xdp_attached(dev, ops->ndo_bpf, prog_id);
__dev_xdp_query(dev, ops->ndo_bpf, &xdp);
*prog_id = xdp.prog_id;
return xdp.prog_attached;
}
static int rtnl_xdp_fill(struct sk_buff *skb, struct net_device *dev)