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-rw-r--r--net/xdp/xdp_umem.c16
-rw-r--r--net/xdp/xsk.c2
2 files changed, 8 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;
}
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index b994c32a664a..59b57d708697 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -430,6 +430,7 @@ static int xsk_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
if (flags & ~(XDP_SHARED_UMEM | XDP_COPY | XDP_ZEROCOPY))
return -EINVAL;
+ rtnl_lock();
mutex_lock(&xs->mutex);
if (xs->state != XSK_READY) {
err = -EBUSY;
@@ -515,6 +516,7 @@ out_unlock:
xs->state = XSK_BOUND;
out_release:
mutex_unlock(&xs->mutex);
+ rtnl_unlock();
return err;
}