diff options
| author |   Andrii Nakryiko <andriin@fb.com> | 2019-11-17 09:28:03 -0800 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-11-18 11:41:59 +0100 |
| commit | 85192dbf4de08795afe2b88e52a36fc6abfc3dba (patch) | |
| tree | 52379ced52c2c2ed5f023073a1aeeb52779e376d /drivers/net/ethernet/cavium/thunder/nicvf_main.c | |
| parent | bpf: Switch bpf_map ref counter to atomic64_t so bpf_map_inc() never fails (diff) | |
| download | linux-dev-85192dbf4de08795afe2b88e52a36fc6abfc3dba.tar.xz linux-dev-85192dbf4de08795afe2b88e52a36fc6abfc3dba.zip | |
bpf: Convert bpf_prog refcnt to atomic64_t
Similarly to bpf_map's refcnt/usercnt, convert bpf_prog's refcnt to atomic64
and remove artificial 32k limit. This allows to make bpf_prog's refcounting
non-failing, simplifying logic of users of bpf_prog_add/bpf_prog_inc.
Validated compilation by running allyesconfig kernel build.
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191117172806.2195367-3-andriin@fb.com
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/cavium/thunder/nicvf_main.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c index 40a44dcb3d9b..f28409279ea4 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c @@ -1876,13 +1876,8 @@ static int nicvf_xdp_setup(struct nicvf *nic, struct bpf_prog *prog) if (nic->xdp_prog) { /* Attach BPF program */ - nic->xdp_prog = bpf_prog_add(nic->xdp_prog, nic->rx_queues - 1); - if (!IS_ERR(nic->xdp_prog)) { - bpf_attached = true; - } else { - ret = PTR_ERR(nic->xdp_prog); - nic->xdp_prog = NULL; - } + bpf_prog_add(nic->xdp_prog, nic->rx_queues - 1); + bpf_attached = true; } /* Calculate Tx queues needed for XDP and network stack */ |