From 85192dbf4de08795afe2b88e52a36fc6abfc3dba Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Sun, 17 Nov 2019 09:28:03 -0800 Subject: 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 Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20191117172806.2195367-3-andriin@fb.com --- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers/net/ethernet/freescale') diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index c26c0a7cbb6b..acc56606d3a5 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -1807,11 +1807,8 @@ static int setup_xdp(struct net_device *dev, struct bpf_prog *prog) if (prog && !xdp_mtu_valid(priv, dev->mtu)) return -EINVAL; - if (prog) { - prog = bpf_prog_add(prog, priv->num_channels); - if (IS_ERR(prog)) - return PTR_ERR(prog); - } + if (prog) + bpf_prog_add(prog, priv->num_channels); up = netif_running(dev); need_update = (!!priv->xdp_prog != !!prog); -- cgit v1.2.3-59-g8ed1b