bpf: offload: free prog->aux->offload when device disappears
authorJakub Kicinski <jakub.kicinski@netronome.com>
Thu, 28 Dec 2017 02:39:06 +0000 (18:39 -0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Sun, 31 Dec 2017 15:12:23 +0000 (16:12 +0100)
commitce3b9db4db0e0e2b9761c56d08615ea0159e4a1b
tree082f0709593e9d271c3dfddcfea1a4c0454654f7
parentcae1927c0b4a93ae15de824faca1f6f611a44fcd
bpf: offload: free prog->aux->offload when device disappears

All bpf offload operations should now be under bpf_devs_lock,
it's safe to free and clear the entire offload structure,
not only the netdev pointer.

__bpf_prog_offload_destroy() will no longer be called multiple
times.

Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel/bpf/offload.c