Hi David, hi Jakub, The following pull-request contains BPF updates for your *net-next* tree. We've added 37 non-merge commits during the last 12 day(s) which contain a total of 56 files changed, 394 insertions(+), 380 deletions(-). The main changes are: 1) XDP driver RCU cleanups, from Toke Høiland-Jørgensen and Paul E. McKenney. 2) Fix bpf_skb_change_proto() IPv4/v6 GSO handling, from Maciej Żenczykowski. 3) Fix false positive kmemleak report for BPF ringbuf alloc, from Rustam Kovhaev. 4) Fix x86 JIT's extable offset calculation for PROBE_LDX NULL, from Ravi Bangoria. 5) Enable libbpf fallback probing with tracing under RHEL7, from Jonathan Edwards. 6) Clean up x86 JIT to remove unused cnt tracking from EMIT macro, from Jiri Olsa. 7) Netlink cleanups for libbpf to please Coverity, from Kumar Kartikeya Dwivedi. 8) Allow to retrieve ancestor cgroup id in tracing programs, from Namhyung Kim. 9) Fix lirc BPF program query to use user-provided prog_cnt, from Sean Young. 10) Add initial libbpf doc including generated kdoc for its API, from Grant Seltzer. 11) Make xdp_rxq_info_unreg_mem_model() more robust, from Jakub Kicinski. 12) Fix up bpfilter startup log-level to info level, from Gary Lin. Please consider pulling these changes from: git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git Thanks a lot! Also thanks to reporters, reviewers and testers of commits in this pull-request: Andrii Nakryiko, Camelia Groza, Dmitrii Banshchikov, Edward Cree, Grygorii Strashko, Ilias Apalodimas, Jesper Dangaard Brouer, Magnus Karlsson, Martin KaFai Lau, Martin Loviska, Simon Horman, Tariq Toukan, Toke Høiland-Jørgensen ---------------------------------------------------------------- The following changes since commit 8fe088bd4fd12f4c8899b51d5bc3daad98767d49: Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue (2021-06-17 12:11:28 -0700) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git for you to fetch changes up to a78cae2476812cecaa4a33d0086bbb53986906bc: xdp: Move the rxq_info.mem clearing to unreg_mem_model() (2021-06-28 23:07:59 +0200) ---------------------------------------------------------------- Andrii Nakryiko (1): selftests/bpf: Fix ringbuf test fetching map FD Gary Lin (1): bpfilter: Specify the log level for the kmsg message Grant Seltzer (1): bpf: Add documentation for libbpf including API autogen Ilya Maximets (1): docs, af_xdp: Consistent indentation in examples Jakub Kicinski (1): xdp: Move the rxq_info.mem clearing to unreg_mem_model() Jiri Olsa (1): bpf, x86: Remove unused cnt increase from EMIT macro Jonathan Edwards (1): libbpf: Add extra BPF_PROG_TYPE check to bpf_object__probe_loading Kumar Kartikeya Dwivedi (2): libbpf: Add request buffer type for netlink messages libbpf: Switch to void * casting in netlink helpers Maciej Żenczykowski (3): Revert "bpf: Check for BPF_F_ADJ_ROOM_FIXED_GSO when bpf_skb_change_proto" bpf: Do not change gso_size during bpf_skb_change_proto() bpf: Support all gso types in bpf_skb_change_proto() Namhyung Kim (1): bpf: Allow bpf_get_current_ancestor_cgroup_id for tracing Paul E. McKenney (2): rcu: Create an unrcu_pointer() to remove __rcu from a pointer doc: Clarify and expand RCU updaters and corresponding readers Ravi Bangoria (1): bpf, x86: Fix extable offset calculation Rustam Kovhaev (1): bpf: Fix false positive kmemleak report in bpf_ringbuf_area_alloc() Sean Young (1): media, bpf: Do not copy more entries than user space requested Toke Høiland-Jørgensen (17): doc: Give XDP as example of non-obvious RCU reader/updater pairing bpf: Allow RCU-protected lookups to happen from bh context xdp: Add proper __rcu annotations to redirect map entries bpf, sched: Remove unneeded rcu_read_lock() around BPF program invocation ena: Remove rcu_read_lock() around XDP program invocation bnxt: Remove rcu_read_lock() around XDP program invocation thunderx: Remove rcu_read_lock() around XDP program invocation freescale: Remove rcu_read_lock() around XDP program invocation intel: Remove rcu_read_lock() around XDP program invocation marvell: Remove rcu_read_lock() around XDP program invocation mlx4: Remove rcu_read_lock() around XDP program invocation nfp: Remove rcu_read_lock() around XDP program invocation qede: Remove rcu_read_lock() around XDP program invocation sfc: Remove rcu_read_lock() around XDP program invocation netsec: Remove rcu_read_lock() around XDP program invocation stmmac: Remove rcu_read_lock() around XDP program invocation ti: Remove rcu_read_lock() around XDP program invocation Wang Hai (2): samples/bpf: Fix Segmentation fault for xdp_redirect command samples/bpf: Fix the error return code of xdp_redirect's main() Documentation/RCU/checklist.rst | 55 ++++++---- Documentation/bpf/index.rst | 13 +++ Documentation/bpf/libbpf/libbpf.rst | 14 +++ Documentation/bpf/libbpf/libbpf_api.rst | 27 +++++ Documentation/bpf/libbpf/libbpf_build.rst | 37 +++++++ .../bpf/libbpf/libbpf_naming_convention.rst | 30 +++--- Documentation/networking/af_xdp.rst | 32 +++--- arch/x86/net/bpf_jit_comp.c | 46 +++------ drivers/media/rc/bpf-lirc.c | 3 +- drivers/net/ethernet/amazon/ena/ena_netdev.c | 3 - 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 | 8 +- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 3 - drivers/net/ethernet/intel/i40e/i40e_txrx.c | 2 - drivers/net/ethernet/intel/i40e/i40e_xsk.c | 3 - drivers/net/ethernet/intel/ice/ice_txrx.c | 6 +- drivers/net/ethernet/intel/ice/ice_xsk.c | 3 - drivers/net/ethernet/intel/igb/igb_main.c | 2 - drivers/net/ethernet/intel/igc/igc_main.c | 7 +- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 - drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 3 - drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 - drivers/net/ethernet/marvell/mvneta.c | 2 - drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 - drivers/net/ethernet/mellanox/mlx4/en_rx.c | 8 +- .../net/ethernet/netronome/nfp/nfp_net_common.c | 2 - drivers/net/ethernet/qlogic/qede/qede_fp.c | 6 -- drivers/net/ethernet/sfc/rx.c | 9 +- drivers/net/ethernet/socionext/netsec.c | 3 - drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 10 +- drivers/net/ethernet/ti/cpsw_priv.c | 10 +- include/linux/filter.h | 8 +- include/linux/rcupdate.h | 14 +++ include/net/xdp_sock.h | 2 +- kernel/bpf/cpumap.c | 13 ++- kernel/bpf/devmap.c | 49 ++++----- kernel/bpf/hashtab.c | 21 ++-- kernel/bpf/helpers.c | 6 +- kernel/bpf/lpm_trie.c | 6 +- kernel/bpf/ringbuf.c | 2 + kernel/trace/bpf_trace.c | 2 + net/bpfilter/main.c | 2 +- net/core/filter.c | 72 ++++++------- net/core/xdp.c | 11 +- net/sched/act_bpf.c | 2 - net/sched/cls_bpf.c | 3 - net/xdp/xsk.c | 4 +- net/xdp/xsk.h | 4 +- net/xdp/xskmap.c | 29 +++--- samples/bpf/xdp_redirect_user.c | 4 +- tools/lib/bpf/libbpf.c | 4 + tools/lib/bpf/netlink.c | 115 ++++++++------------- tools/lib/bpf/nlattr.c | 2 +- tools/lib/bpf/nlattr.h | 38 ++++--- tools/testing/selftests/bpf/prog_tests/ringbuf.c | 2 +- 56 files changed, 394 insertions(+), 380 deletions(-) create mode 100644 Documentation/bpf/libbpf/libbpf.rst create mode 100644 Documentation/bpf/libbpf/libbpf_api.rst create mode 100644 Documentation/bpf/libbpf/libbpf_build.rst rename tools/lib/bpf/README.rst => Documentation/bpf/libbpf/libbpf_naming_convention.rst (90%)
