diff options
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index bbba19112f02..07ed21d64f92 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -7140,13 +7140,17 @@ int dev_change_xdp_fd(struct net_device *dev, struct netlink_ext_ack *extack, __dev_xdp_attached(dev, bpf_op, NULL)) return -EBUSY; - if (bpf_op == ops->ndo_bpf) - prog = bpf_prog_get_type_dev(fd, BPF_PROG_TYPE_XDP, - dev); - else - prog = bpf_prog_get_type(fd, BPF_PROG_TYPE_XDP); + prog = bpf_prog_get_type_dev(fd, BPF_PROG_TYPE_XDP, + bpf_op == ops->ndo_bpf); if (IS_ERR(prog)) return PTR_ERR(prog); + + if (!(flags & XDP_FLAGS_HW_MODE) && + bpf_prog_is_dev_bound(prog->aux)) { + NL_SET_ERR_MSG(extack, "using device-bound program without HW_MODE flag is not supported"); + bpf_prog_put(prog); + return -EINVAL; + } } err = dev_xdp_install(dev, bpf_op, extack, flags, prog); |