The mentioned WARN is quite noisy, especially vs fuzzers and apparently used only to track the relevant BPF program and/or involved driver. The first patch replace it with a pr_warn_once(), and the 2nd patch allow dumps relevant info to track the reported issue. This is quite invasive, but the mentioned WARN makes the hunt for some bugs reported by syzkaller quite difficult. Paolo Abeni (2): bpf: do not WARN in bpf_warn_invalid_xdp_action() bpf: let bpf_warn_invalid_xdp_action() report more info drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 2 +- drivers/net/ethernet/cavium/thunder/nicvf_main.c | 2 +- drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +- drivers/net/ethernet/freescale/enetc/enetc.c | 2 +- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 2 +- drivers/net/ethernet/intel/i40e/i40e_xsk.c | 2 +- drivers/net/ethernet/intel/ice/ice_txrx.c | 2 +- drivers/net/ethernet/intel/ice/ice_xsk.c | 2 +- drivers/net/ethernet/intel/igb/igb_main.c | 2 +- drivers/net/ethernet/intel/igc/igc_main.c | 2 +- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +- drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 2 +- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +- drivers/net/ethernet/marvell/mvneta.c | 2 +- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | 2 +- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 2 +- drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 2 +- drivers/net/ethernet/qlogic/qede/qede_fp.c | 2 +- drivers/net/ethernet/sfc/rx.c | 2 +- drivers/net/ethernet/socionext/netsec.c | 2 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/ethernet/ti/cpsw_priv.c | 2 +- drivers/net/hyperv/netvsc_bpf.c | 2 +- drivers/net/tun.c | 2 +- drivers/net/veth.c | 4 ++-- drivers/net/virtio_net.c | 4 ++-- drivers/net/xen-netfront.c | 2 +- include/linux/filter.h | 2 +- kernel/bpf/cpumap.c | 4 ++-- kernel/bpf/devmap.c | 4 ++-- net/core/dev.c | 2 +- net/core/filter.c | 8 ++++---- 36 files changed, 43 insertions(+), 43 deletions(-) -- 2.33.1
