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| author | David S. Miller <davem@davemloft.net> | 2020-09-23 23:11:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-23 23:11:11 +0300 |
| commit | 6d772f328d6ad3e4fb64385784571be4be25e63d (patch) | |
| tree | de6e9d5b1aac58a7e1fd9502f0baa45b5c12b296 /net/core/dev.c | |
| parent | 1a26e88d534b816c126891a4b81ad93b284d28a1 (diff) | |
| parent | dc3652d3f0d5479768ec8eb7f7aabbba6ed75d95 (diff) | |
| download | linux-6d772f328d6ad3e4fb64385784571be4be25e63d.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:
====================
pull-request: bpf-next 2020-09-23
The following pull-request contains BPF updates for your *net-next* tree.
We've added 95 non-merge commits during the last 22 day(s) which contain
a total of 124 files changed, 4211 insertions(+), 2040 deletions(-).
The main changes are:
1) Full multi function support in libbpf, from Andrii.
2) Refactoring of function argument checks, from Lorenz.
3) Make bpf_tail_call compatible with functions (subprograms), from Maciej.
4) Program metadata support, from YiFei.
5) bpf iterator optimizations, from Yonghong.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 38a172a63318..a268ff35ad38 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5442,15 +5442,20 @@ static int generic_xdp_install(struct net_device *dev, struct netdev_bpf *xdp) if (new) { u32 i; + mutex_lock(&new->aux->used_maps_mutex); + /* generic XDP does not work with DEVMAPs that can * have a bpf_prog installed on an entry */ for (i = 0; i < new->aux->used_map_cnt; i++) { - if (dev_map_can_have_prog(new->aux->used_maps[i])) - return -EINVAL; - if (cpu_map_prog_allowed(new->aux->used_maps[i])) + if (dev_map_can_have_prog(new->aux->used_maps[i]) || + cpu_map_prog_allowed(new->aux->used_maps[i])) { + mutex_unlock(&new->aux->used_maps_mutex); return -EINVAL; + } } + + mutex_unlock(&new->aux->used_maps_mutex); } switch (xdp->command) { |