The DPDK function rte_memcpy() only exists as an optimization for shortcomings in performance of libc memcpy() on some platforms. Many platforms have no special rte_memcpy() and just use memcpy().
But many analysis and test tools know that memcpy() is a special case and check for overwrite, bounds errors etc. Therefore memcpy() should be preferred wherever possible. This patch series introduces a coccinelle script to find calls to rte_memcpy() where size is fixed, and change them to regular memcpy(). This was the starting point for this cleanup. There is also some cleanups to include rte_memcpy.h and string.h where needed. Often the includes were happening by some other header. And also removal of rte_memcpy.h where no longer needed. The result is a 46% reduction in use of rte_memcpy. The remaining rte_memcpy can be cleaned up later: - drivers with active maintenance (like mlx5); - changes to rte_memcpy which need benchmarking; - test code for rte_memcpy can be removed as last step. No functional change, no warnings in all compilers including LTO. Stephen Hemminger (61): devtools/cocci: add script to replace fixed size rte_memcpy app/testpmd: replace rte_memcpy with memcpy test: use memcpy instead of rte_memcpy app/graph: replace rte_memcpy with memcpy lpm: remove unnecessary include of rte_memcpy.h acl: remove unnecessary include of rte_memcpy.h drivers/bus: remove unnecessary include of rte_memcpy.h security: replace fixed size rte_memcpy ethdev: replace use of rte_memcpy net: replace use of rte_memcpy pdcp: replace use of rte_memcpy eventdev: replace fixed size rte_memcpy eal: replace rte_memcpy of cpuset cryptodev: replace use of rte_memcpy drivers/raw: use memcpy for fixed size data test-pipeline: replace use of rte_memcpy net/af_xdp: replace use of rte_memcpy net/avp: replace use of rte_memcpy net/axgbe: replace use of rte_memcpy net/bnx2x: replace use of rte_memcpy net/bnxt: replace use of rte_memcpy net/bonding: replace use of rte_memcpy net/cnxk: replace use of rte_memcpy net/cxgbe: replace use of rte_memcpy net/dpaa2: replace use of rte_memcpy net/enic: replace use of rte_memcpy net/failsafe: replace use of rte_memcpy net/gve: replace use of rte_memcpy net/hinic: replace use of rte_memcpy net/hns3: replace use of rte_memcpy net/mlx5: replace use of rte_memcpy net/mvpp2: replace use of rte_memcpy net/netvsc: replace use of rte_memcpy net/nfp: replace use of rte_memcpy net/ngbe: replace use of rte_memcpy net/ntnic: replace use of rte_memcpy net/null: replace use of rte_memcpy net/qede: replace use of rte_memcpy net/ring: replace use of rte_memcpy net/sfc: replace use of rte_memcpy net/txgbe: replace use of rte_memcpy net/vhost: replace use of rte_memcpy net/virtio: replace use of rte_memcpy net/sxe2: replace use of rte_memcpy net/zxdh: replace use of rte_memcpy net/memif: use memcpy for fixed size data net/ice: use memcpy for fixed size data test-bbdev: remove unnecessary include rte_memcpy.h drivers/mempool: use memcpy for fixed size data ml/cnxk: use memcpy for fixed size data drivers/event: use memcpy for fixed size data baseband/la12xx: use memcpy for fixed size data baseband/acc: replace use of rte_memcpy drivers/*/qat: use memcpy for fixed size data hash: replace use of rte_memcpy rib: remove rte_memcpy include pcapng: replace use of rte_memcpy efd: replace use of rte_memcpy net/xsc: replace use of rte_memcpy net/pcap: replace use of rte_memcpy power: replace use of rte_memcpy app/graph/neigh.c | 8 +- app/test-bbdev/test_bbdev.c | 1 - app/test-eventdev/test_pipeline_common.c | 8 +- app/test-pipeline/config.c | 1 - app/test-pipeline/init.c | 1 - app/test-pipeline/main.c | 1 - app/test-pipeline/runtime.c | 1 - app/test-pmd/cmdline.c | 28 ++--- app/test-pmd/cmdline_flow.c | 34 +++--- app/test-pmd/config.c | 13 +-- app/test-pmd/csumonly.c | 1 - app/test-pmd/flowgen.c | 1 - app/test-pmd/iofwd.c | 1 - app/test-pmd/macfwd.c | 1 - app/test-pmd/macswap.c | 1 - app/test-pmd/noisy_vnf.c | 1 - app/test-pmd/rxonly.c | 1 - app/test-pmd/testpmd.c | 1 - app/test-pmd/txonly.c | 7 +- app/test/commands.c | 1 - app/test/packet_burst_generator.c | 10 +- app/test/test_bpf.c | 1 + app/test/test_crc.c | 7 +- app/test/test_cryptodev.c | 14 +-- app/test/test_cryptodev.h | 1 + app/test/test_cryptodev_asym.c | 1 - app/test/test_cryptodev_security_pdcp.c | 1 - app/test/test_efd.c | 1 - app/test/test_efd_perf.c | 1 - app/test/test_event_crypto_adapter.c | 12 +- app/test/test_eventdev.c | 1 - app/test/test_link_bonding_mode4.c | 8 +- app/test/test_mbuf.c | 1 - app/test/test_member.c | 1 - app/test/test_member_perf.c | 1 - app/test/test_rawdev.c | 1 - app/test/test_ring.h | 17 ++- app/test/test_security_inline_macsec.c | 2 +- app/test/test_security_inline_proto.c | 42 +++---- app/test/test_security_proto.c | 2 +- app/test/test_service_cores.c | 1 - app/test/test_thash.c | 4 +- app/test/virtual_pmd.c | 5 +- devtools/cocci/rte_memcpy_fixed.cocci | 15 +++ drivers/baseband/acc/rte_acc100_pmd.c | 7 +- drivers/baseband/acc/rte_vrb_pmd.c | 21 ++-- drivers/baseband/la12xx/bbdev_la12xx.c | 4 +- drivers/bus/auxiliary/linux/auxiliary.c | 1 - drivers/bus/fslmc/fslmc_bus.c | 1 - drivers/bus/fslmc/fslmc_vfio.c | 1 - drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c | 1 - drivers/bus/fslmc/portal/dpaa2_hw_dpci.c | 1 - drivers/bus/fslmc/portal/dpaa2_hw_dpcon.c | 1 - drivers/bus/fslmc/portal/dpaa2_hw_dpio.c | 1 - drivers/bus/pci/linux/pci.c | 1 - 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_se.h | 2 +- drivers/crypto/ipsec_mb/pmd_snow3g.c | 4 +- drivers/crypto/mlx5/mlx5_crypto_gcm.c | 10 +- drivers/crypto/qat/qat_sym_session.c | 33 +++--- .../scheduler/rte_cryptodev_scheduler.c | 6 +- drivers/crypto/scheduler/scheduler_failover.c | 12 +- drivers/crypto/zsda/zsda_crypto_session.c | 6 +- drivers/event/cnxk/cnxk_eventdev_selftest.c | 1 - drivers/event/cnxk/cnxk_tim_evdev.c | 4 +- drivers/event/dlb2/dlb2.c | 4 +- drivers/event/dpaa/dpaa_eventdev.c | 1 - drivers/event/dpaa2/dpaa2_eventdev.c | 3 +- drivers/event/dpaa2/dpaa2_eventdev_selftest.c | 1 - drivers/event/octeontx/ssovf_evdev_selftest.c | 1 - drivers/event/octeontx/timvf_evdev.c | 4 +- drivers/mempool/dpaa/dpaa_mempool.c | 4 +- drivers/mempool/dpaa2/dpaa2_hw_mempool.c | 5 +- drivers/ml/cnxk/cn10k_ml_model.c | 8 +- drivers/ml/cnxk/cn10k_ml_ops.c | 8 +- drivers/ml/cnxk/tvmrt_ml_model.c | 9 +- drivers/ml/cnxk/tvmrt_ml_ops.c | 6 +- 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/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_eswitch_devargs.c | 3 +- drivers/net/cnxk/cnxk_ethdev_ops.c | 2 +- drivers/net/cnxk/cnxk_rep.c | 3 +- drivers/net/cnxk/cnxk_rep_flow.c | 6 +- drivers/net/cnxk/cnxk_rep_msg.c | 8 +- drivers/net/cnxk/cnxk_rep_ops.c | 2 +- drivers/net/cnxk/cnxk_tm.c | 5 +- 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/base/dpaa2_hw_dpni.c | 1 - drivers/net/dpaa2/dpaa2_ethdev.c | 1 - drivers/net/dpaa2/dpaa2_mux.c | 36 +++--- drivers/net/dpaa2/dpaa2_recycle.c | 1 - drivers/net/dpaa2/dpaa2_rxtx.c | 1 - drivers/net/dpaa2/dpaa2_sparser.c | 1 - drivers/net/dpaa2/dpaa2_tm.c | 2 +- drivers/net/enic/enic_main.c | 6 +- drivers/net/failsafe/failsafe_ops.c | 10 +- drivers/net/gve/base/gve_adminq.c | 2 +- drivers/net/hinic/hinic_pmd_ethdev.c | 1 - drivers/net/hinic/hinic_pmd_flow.c | 41 ++++--- drivers/net/hns3/hns3_fdir.c | 2 +- drivers/net/hns3/hns3_flow.c | 4 +- drivers/net/intel/ice/ice_fdir_filter.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 | 31 +++--- drivers/net/mlx5/mlx5_rx.c | 6 +- drivers/net/mlx5/mlx5_rxtx_vec.c | 8 +- drivers/net/mvpp2/mrvl_tm.c | 2 +- drivers/net/netvsc/hn_ethdev.c | 1 - drivers/net/nfp/flower/nfp_conntrack.c | 2 +- drivers/net/nfp/flower/nfp_flower_flow.c | 16 +-- drivers/net/nfp/nfp_mtr.c | 10 +- drivers/net/ngbe/ngbe_pf.c | 4 +- drivers/net/ntnic/ntnic_ethdev.c | 11 +- drivers/net/null/rte_eth_null.c | 12 +- drivers/net/pcap/pcap_ethdev.c | 9 +- drivers/net/qede/qede_main.c | 2 +- drivers/net/ring/rte_eth_ring.c | 1 - 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/sxe2/sxe2_cmd_chnl.c | 6 +- drivers/net/sxe2/sxe2_flow.c | 11 +- drivers/net/sxe2/sxe2_flow_parse_pattern.c | 36 +++--- drivers/net/sxe2/sxe2_ipsec.c | 2 +- drivers/net/sxe2/sxe2_rss.c | 10 +- drivers/net/sxe2/sxe2_rx.c | 4 +- drivers/net/sxe2/sxe2_stats.c | 25 +++-- drivers/net/sxe2/sxe2_tm.c | 4 +- drivers/net/txgbe/txgbe_ethdev.c | 9 +- drivers/net/txgbe/txgbe_fdir.c | 11 +- drivers/net/txgbe/txgbe_flow.c | 73 ++++++------ drivers/net/txgbe/txgbe_ipsec.c | 8 +- drivers/net/txgbe/txgbe_pf.c | 6 +- drivers/net/txgbe/txgbe_tm.c | 11 +- drivers/net/vhost/rte_eth_vhost.c | 1 - drivers/net/virtio/virtio_ethdev.c | 1 - drivers/net/xsc/xsc_dev.c | 2 +- drivers/net/zxdh/zxdh_common.c | 7 +- drivers/net/zxdh/zxdh_flow.c | 67 ++++++----- drivers/net/zxdh/zxdh_msg.c | 15 +-- drivers/net/zxdh/zxdh_mtr.c | 10 +- drivers/net/zxdh/zxdh_np.c | 1 - drivers/net/zxdh/zxdh_queue.c | 8 +- drivers/net/zxdh/zxdh_tables.c | 21 ++-- drivers/power/acpi/acpi_cpufreq.c | 4 +- drivers/power/amd_pstate/amd_pstate_cpufreq.c | 4 +- drivers/power/amd_uncore/amd_uncore.c | 5 +- drivers/power/cppc/cppc_cpufreq.c | 4 +- .../power/intel_pstate/intel_pstate_cpufreq.c | 3 +- drivers/power/intel_uncore/intel_uncore.c | 5 +- drivers/raw/ifpga/afu_pmd_he_hssi.c | 4 +- drivers/raw/ifpga/afu_pmd_he_lpbk.c | 4 +- drivers/raw/ifpga/afu_pmd_he_mem.c | 4 +- drivers/raw/ifpga/afu_pmd_n3000.c | 8 +- drivers/raw/ifpga/ifpga_rawdev.c | 11 +- drivers/raw/skeleton/skeleton_rawdev.c | 8 +- drivers/raw/skeleton/skeleton_rawdev_test.c | 1 - lib/acl/rte_acl_osdep.h | 1 - lib/cryptodev/rte_cryptodev.c | 12 +- lib/eal/common/eal_common_options.c | 6 +- lib/efd/rte_efd.c | 3 +- lib/ethdev/rte_ethdev.c | 3 +- lib/ethdev/rte_flow.c | 104 ++++++++---------- lib/eventdev/rte_event_crypto_adapter.c | 2 +- lib/hash/rte_thash.c | 4 +- lib/lpm/rte_lpm6.c | 1 - lib/net/rte_ether.c | 2 +- lib/pcapng/rte_pcapng.c | 2 +- lib/pdcp/pdcp_process.c | 51 +++++---- lib/rib/rte_rib6.h | 1 - lib/security/rte_security.c | 4 +- 190 files changed, 746 insertions(+), 807 deletions(-) create mode 100644 devtools/cocci/rte_memcpy_fixed.cocci -- 2.53.0
