> The DPDK has a lot of "cargo cult" usage of rte_memcpy.
> This patch set replaces cases where rte_memcpy is used with a fixed
> size constant size.
>
> Typical example is:
> rte_memcpy(mac_addrs, mac.addr_bytes, RTE_ETHER_ADDR_LEN);
> which can be replaced with:
> memcpy(mac_addrs, mac.addr_bytes, RTE_ETHER_ADDR_LEN);
>
> This has two benefits. Gcc (and clang) are smart enough that for
> all small fixed size values, they just generate the necessary instructions
> to do it inline. It also means that fortify, Coverity, and ASAN
> analyzers can check these memcpy's.
>
> So faster, better, safer.
>
> The first patch is a simple coccinelle script to do the replacement
> and the rest are the results broken out by module.
>
> The coccinelle script can be used again to make sure more bad
> usage doesn't creep in with new drivers.
>
> Stephen Hemminger (71):
> cocci/rte_memcpy: add script to eliminate fixed size rte_memcpy
> eal: replace use of fixed size rte_memcpy
> ethdev: replace use of fixed size rte_memcpy
> eventdev: replace use of fixed size rte_memcpy
> cryptodev: replace use of fixed size rte_memcpy
> ip_frag: replace use of fixed size rte_memcpy
> net: replace use of fixed size rte_memcpy
> lpm: replace use of fixed size rte_memcpy
> node: replace use of fixed size rte_memcpy
> pdcp: replace use of fixed size rte_memcpy
> pipeline: replace use of fixed size rte_memcpy
> rib: replace use of fixed size rte_memcpy
> security: replace use of fixed size rte_memcpy
> net/mlx5: replace use of fixed size rte_memcpy
> net/nfp: replace use of fixed size rte_memcpy
> net/ngbe: replace use of fixed size rte_memcpy
> net/null: replace use of fixed size rte_memcpy
> net/pcap: replace use of fixed size rte_memcpy
> net/sfc: replace use of fixed size rte_memcpy
> net/tap: replace use of fixed size rte_memcpy
> net/txgbe: replace use of fixed size rte_memcpy
> raw/ifpga: replace use of fixed size rte_memcpy
> raw/skeleton: replace use of fixed size rte_memcpy
> net/hns3: replace use of fixed size rte_memcpy
> net/i40e: replace use of fixed size rte_memcpy
> net/iavf: replace use of fixed size rte_memcpy
> net/ice: replace use of fixed size rte_memcpy
> net/idpf: replace use of fixed size rte_memcpy
> net/ipn3ke: replace use of fixed size rte_memcpy
> net/ixgbe: replace use of fixed size rte_memcpy
> net/memif: replace use of fixed size rte_memcpy
> net/qede: replace use of fixed size rte_memcpy
> baseband/acc: replace use of fixed size rte_memcpy
> baseband/la12xx: replace use of fixed size rte_memcpy
> common/idpf: replace use of fixed size rte_memcpy
> common/qat: replace use of fixed size rte_memcpy
> compress/qat: replace use of fixed size rte_memcpy
> crypto/ccp: replace use of fixed size rte_memcpy
> crypto/cnxk: replace use of fixed size rte_memcpy
> crypto/dpaa_sec: replace use of fixed size rte_memcpy
> crypto/ipsec_mb: replace use of fixed size rte_memcpy
> crypto/qat: replace use of fixed size rte_memcpy
> crypto/scheduler: replace use of fixed size rte_memcpy
> event/cnxk: replace use of fixed size rte_memcpy
> event/dlb2: replace use of fixed size rte_memcpy
> event/dpaa2: replace use of fixed size rte_memcpy
> event/octeontx: replace use of fixed size rte_memcpy
> mempool/dpaa: replace use of fixed size rte_memcpy
> mempool/dpaa2: replace use of fixed size rte_memcpy
> ml/cnxk: replace use of fixed size rte_memcpy
> net/af_xdp: replace use of fixed size rte_memcpy
> net/avp: replace use of fixed size rte_memcpy
> net/axgbe: replace use of fixed size rte_memcpy
> net/bnx2x: replace use of fixed size rte_memcpy
> net/bnxt: replace use of fixed size rte_memcpy
> net/bonding: replace use of fixed size rte_memcpy
> net/cnxk: replace use of fixed size rte_memcpy
> net/cpfl: replace use of fixed size rte_memcpy
> net/cxgbe: replace use of fixed size rte_memcpy
> net/dpaa2: replace use of fixed size rte_memcpy
> net/e1000: replace use of fixed size rte_memcpy
> net/enic: replace use of fixed size rte_memcpy
> net/failsafe: replace use of fixed size rte_memcpy
> net/gve/base: replace use of fixed size rte_memcpy
> net/hinic: replace use of fixed size rte_memcpy
> net/mvpp2: replace use of fixed size rte_memcpy
> app/test-pmd: replace use of fixed size rte_memcpy
> app/graph: replace use of fixed size rte_memcpy
> app/test-eventdev: replace use of fixed size rte_memcpy
> app/test: replace use of fixed size rte_memcpy
> examples: replace use of fixed size rte_memcpy
>
> app/graph/neigh.c | 8 +-
> app/test-eventdev/test_pipeline_common.c | 19 ++-
> app/test-pmd/cmdline.c | 48 ++++----
> app/test-pmd/cmdline_flow.c | 24 ++--
> app/test-pmd/config.c | 8 +-
> app/test/packet_burst_generator.c | 4 +-
> app/test/test_crc.c | 4 +-
> app/test/test_cryptodev.c | 18 ++-
> app/test/test_event_crypto_adapter.c | 12 +-
> app/test/test_event_dma_adapter.c | 4 +-
> app/test/test_ipsec.c | 6 +-
> app/test/test_link_bonding_mode4.c | 8 +-
> app/test/test_security_inline_proto.c | 36 +++---
> app/test/virtual_pmd.c | 2 +-
> devtools/cocci/rte_memcpy.cocci | 11 ++
> drivers/baseband/acc/rte_acc100_pmd.c | 19 ++-
> drivers/baseband/acc/rte_vrb_pmd.c | 21 ++--
> drivers/baseband/la12xx/bbdev_la12xx.c | 4 +-
> drivers/common/idpf/idpf_common_device.c | 4 +-
> drivers/common/idpf/idpf_common_virtchnl.c | 8 +-
> drivers/common/qat/qat_qp.c | 10 +-
> drivers/compress/qat/qat_comp.c | 8 +-
> drivers/crypto/ccp/ccp_crypto.c | 14 +--
> drivers/crypto/cnxk/cnxk_cryptodev_ops.c | 2 +-
> drivers/crypto/cnxk/cnxk_se.h | 2 +-
> drivers/crypto/dpaa_sec/dpaa_sec.c | 2 +-
> drivers/crypto/ipsec_mb/pmd_snow3g.c | 4 +-
> drivers/crypto/qat/qat_sym_session.c | 52 ++++-----
> .../scheduler/rte_cryptodev_scheduler.c | 6 +-
> drivers/crypto/scheduler/scheduler_failover.c | 12 +-
> drivers/event/cnxk/cnxk_tim_evdev.c | 4 +-
> drivers/event/dlb2/dlb2.c | 6 +-
> drivers/event/dpaa2/dpaa2_eventdev.c | 6 +-
> drivers/event/octeontx/timvf_evdev.c | 4 +-
> drivers/mempool/dpaa/dpaa_mempool.c | 4 +-
> drivers/mempool/dpaa2/dpaa2_hw_mempool.c | 4 +-
> drivers/ml/cnxk/cn10k_ml_model.c | 8 +-
> drivers/ml/cnxk/cn10k_ml_ops.c | 11 +-
> drivers/ml/cnxk/cnxk_ml_ops.c | 2 +-
> drivers/ml/cnxk/mvtvm_ml_model.c | 8 +-
> drivers/ml/cnxk/mvtvm_ml_ops.c | 8 +-
> drivers/net/af_xdp/rte_eth_af_xdp.c | 2 +-
> drivers/net/avp/avp_ethdev.c | 4 +-
> drivers/net/axgbe/axgbe_ethdev.c | 4 +-
> drivers/net/bnx2x/bnx2x.c | 32 +++---
> drivers/net/bnx2x/bnx2x_stats.c | 10 +-
> drivers/net/bnx2x/bnx2x_vfpf.c | 19 +--
> drivers/net/bnxt/bnxt_flow.c | 34 +++---
> drivers/net/bonding/rte_eth_bond_8023ad.c | 4 +-
> drivers/net/bonding/rte_eth_bond_flow.c | 2 +-
> drivers/net/cnxk/cnxk_ethdev_ops.c | 2 +-
> drivers/net/cnxk/cnxk_tm.c | 5 +-
> drivers/net/cpfl/cpfl_ethdev.c | 3 +-
> drivers/net/cpfl/cpfl_vchnl.c | 4 +-
> drivers/net/cxgbe/clip_tbl.c | 2 +-
> drivers/net/cxgbe/cxgbe_filter.c | 8 +-
> drivers/net/cxgbe/l2t.c | 4 +-
> drivers/net/cxgbe/smt.c | 20 ++--
> drivers/net/dpaa2/dpaa2_tm.c | 2 +-
> drivers/net/e1000/igb_flow.c | 22 ++--
> drivers/net/e1000/igb_pf.c | 6 +-
> drivers/net/enic/enic_main.c | 8 +-
> drivers/net/failsafe/failsafe_ops.c | 6 +-
> drivers/net/gve/base/gve_adminq.c | 2 +-
> drivers/net/hinic/hinic_pmd_flow.c | 40 +++----
> drivers/net/hns3/hns3_fdir.c | 2 +-
> drivers/net/hns3/hns3_flow.c | 4 +-
> drivers/net/i40e/i40e_ethdev.c | 108 ++++++++----------
> drivers/net/i40e/i40e_fdir.c | 28 +++--
> drivers/net/i40e/i40e_flow.c | 56 +++++----
> drivers/net/i40e/i40e_pf.c | 2 +-
> drivers/net/i40e/i40e_tm.c | 11 +-
> drivers/net/i40e/rte_pmd_i40e.c | 34 +++---
> drivers/net/iavf/iavf_fdir.c | 93 +++++++--------
> drivers/net/iavf/iavf_fsub.c | 50 ++++----
> drivers/net/iavf/iavf_generic_flow.c | 2 +-
> drivers/net/iavf/iavf_tm.c | 11 +-
> drivers/net/iavf/iavf_vchnl.c | 9 +-
> drivers/net/ice/ice_dcf.c | 5 +-
> drivers/net/ice/ice_dcf_parent.c | 2 +-
> drivers/net/ice/ice_dcf_sched.c | 11 +-
> drivers/net/ice/ice_diagnose.c | 4 +-
> drivers/net/ice/ice_ethdev.c | 14 +--
> drivers/net/ice/ice_fdir_filter.c | 37 +++---
> drivers/net/ice/ice_generic_flow.c | 2 +-
> drivers/net/ice/ice_hash.c | 2 +-
> drivers/net/ice/ice_tm.c | 11 +-
> drivers/net/idpf/idpf_ethdev.c | 7 +-
> drivers/net/idpf/idpf_rxtx.c | 10 +-
> drivers/net/ipn3ke/ipn3ke_flow.c | 32 +++---
> drivers/net/ipn3ke/ipn3ke_representor.c | 16 +--
> drivers/net/ipn3ke/ipn3ke_tm.c | 6 +-
> drivers/net/ixgbe/ixgbe_ethdev.c | 9 +-
> drivers/net/ixgbe/ixgbe_fdir.c | 7 +-
> drivers/net/ixgbe/ixgbe_flow.c | 65 +++++------
> drivers/net/ixgbe/ixgbe_ipsec.c | 8 +-
> drivers/net/ixgbe/ixgbe_pf.c | 4 +-
> drivers/net/ixgbe/ixgbe_tm.c | 11 +-
> drivers/net/ixgbe/rte_pmd_ixgbe.c | 4 +-
> drivers/net/memif/memif_socket.c | 4 +-
> drivers/net/mlx5/mlx5_devx.c | 4 +-
> drivers/net/mlx5/mlx5_flow.c | 38 +++---
> drivers/net/mlx5/mlx5_flow_aso.c | 6 +-
> drivers/net/mlx5/mlx5_flow_hw.c | 16 +--
> drivers/net/mlx5/mlx5_rx.c | 6 +-
> drivers/net/mlx5/mlx5_rxtx_vec.c | 8 +-
> drivers/net/mvpp2/mrvl_tm.c | 2 +-
> drivers/net/nfp/flower/nfp_conntrack.c | 2 +-
> drivers/net/nfp/flower/nfp_flower_flow.c | 16 +--
> .../net/nfp/flower/nfp_flower_representor.c | 2 +-
> drivers/net/nfp/nfp_mtr.c | 10 +-
> drivers/net/ngbe/ngbe_pf.c | 4 +-
> drivers/net/null/rte_eth_null.c | 6 +-
> drivers/net/pcap/pcap_ethdev.c | 2 +-
> drivers/net/pcap/pcap_osdep_freebsd.c | 2 +-
> drivers/net/pcap/pcap_osdep_linux.c | 2 +-
> drivers/net/qede/qede_main.c | 2 +-
> drivers/net/sfc/sfc.c | 2 +-
> drivers/net/sfc/sfc_ef10_tx.c | 2 +-
> drivers/net/sfc/sfc_ethdev.c | 11 +-
> drivers/net/sfc/sfc_flow.c | 20 ++--
> drivers/net/sfc/sfc_flow_rss.c | 2 +-
> drivers/net/sfc/sfc_mae.c | 2 +-
> drivers/net/sfc/sfc_rx.c | 2 +-
> drivers/net/sfc/sfc_tso.c | 2 +-
> drivers/net/sfc/sfc_tso.h | 9 +-
> drivers/net/tap/rte_eth_tap.c | 14 +--
> drivers/net/txgbe/txgbe_ethdev.c | 9 +-
> drivers/net/txgbe/txgbe_fdir.c | 6 +-
> drivers/net/txgbe/txgbe_flow.c | 65 +++++------
> drivers/net/txgbe/txgbe_ipsec.c | 8 +-
> drivers/net/txgbe/txgbe_pf.c | 4 +-
> drivers/net/txgbe/txgbe_tm.c | 11 +-
> drivers/raw/ifpga/afu_pmd_he_hssi.c | 2 +-
> drivers/raw/ifpga/afu_pmd_he_lpbk.c | 2 +-
> drivers/raw/ifpga/afu_pmd_he_mem.c | 2 +-
> drivers/raw/ifpga/afu_pmd_n3000.c | 8 +-
> drivers/raw/ifpga/ifpga_rawdev.c | 10 +-
> drivers/raw/skeleton/skeleton_rawdev.c | 7 +-
> examples/bbdev_app/main.c | 2 +-
> examples/l2fwd-cat/cat.c | 3 +-
> examples/ptpclient/ptpclient.c | 11 +-
> examples/vhost/main.c | 5 +-
> examples/vmdq/main.c | 5 +-
> examples/vmdq_dcb/main.c | 14 +--
> lib/cryptodev/rte_cryptodev.c | 2 +-
> lib/eal/common/eal_common_options.c | 7 +-
> lib/ethdev/rte_ethdev.c | 3 +-
> lib/ethdev/rte_flow.c | 5 +-
> lib/eventdev/rte_event_crypto_adapter.c | 2 +-
> lib/eventdev/rte_event_dma_adapter.c | 4 +-
> lib/eventdev/rte_event_timer_adapter.c | 2 +-
> lib/fib/trie.c | 2 +-
> lib/ip_frag/rte_ipv6_fragmentation.c | 4 +-
> lib/ip_frag/rte_ipv6_reassembly.c | 6 +-
> lib/lpm/rte_lpm6.c | 3 +-
> lib/net/rte_ether.c | 2 +-
> lib/node/ip6_lookup.c | 8 +-
> lib/pdcp/pdcp_process.c | 36 +++---
> lib/pipeline/rte_table_action.c | 8 +-
> lib/rib/rte_rib6.h | 3 +-
> lib/security/rte_security.c | 4 +-
> 162 files changed, 880 insertions(+), 960 deletions(-)
> create mode 100644 devtools/cocci/rte_memcpy.cocci
>
> --
Series-Acked-by: Konstantin Ananyev <konstantin.anan...@huawei.com>
> 2.43.0
