diff options
| author | David S. Miller <davem@davemloft.net> | 2019-07-18 14:04:45 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-07-18 14:04:45 -0700 |
| commit | bb745231678cd92ab0c4d37343b06e4879072368 (patch) | |
| tree | 34b96b1bc5310b40779b8848389868e58ce37b5d /net/xdp/xdp_umem.c | |
| parent | 7369c10f81172b55b284944caa2f51f595bbdb84 (diff) | |
| parent | 59fd3486c3dd5678bc2fcac75e14466775465c3e (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:
====================
pull-request: bpf 2019-07-18
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) verifier precision propagation fix, from Andrii.
2) BTF size fix for typedefs, from Andrii.
3) a bunch of big endian fixes, from Ilya.
4) wide load from bpf_sock_addr fixes, from Stanislav.
5) a bunch of misc fixes from a number of developers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xdp/xdp_umem.c')
| -rw-r--r-- | net/xdp/xdp_umem.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c index 20c91f02d3d8..83de74ca729a 100644 --- a/net/xdp/xdp_umem.c +++ b/net/xdp/xdp_umem.c @@ -87,21 +87,20 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev, struct netdev_bpf bpf; int err = 0; + ASSERT_RTNL(); + force_zc = flags & XDP_ZEROCOPY; force_copy = flags & XDP_COPY; if (force_zc && force_copy) return -EINVAL; - rtnl_lock(); - if (xdp_get_umem_from_qid(dev, queue_id)) { - err = -EBUSY; - goto out_rtnl_unlock; - } + if (xdp_get_umem_from_qid(dev, queue_id)) + return -EBUSY; err = xdp_reg_umem_at_qid(dev, umem, queue_id); if (err) - goto out_rtnl_unlock; + return err; umem->dev = dev; umem->queue_id = queue_id; @@ -110,7 +109,7 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev, if (force_copy) /* For copy-mode, we are done. */ - goto out_rtnl_unlock; + return 0; if (!dev->netdev_ops->ndo_bpf || !dev->netdev_ops->ndo_xsk_async_xmit) { @@ -125,7 +124,6 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev, err = dev->netdev_ops->ndo_bpf(dev, &bpf); if (err) goto err_unreg_umem; - rtnl_unlock(); umem->zc = true; return 0; @@ -135,8 +133,6 @@ err_unreg_umem: err = 0; /* fallback to copy mode */ if (err) xdp_clear_umem_at_qid(dev, queue_id); -out_rtnl_unlock: - rtnl_unlock(); return err; } |