• David S. Miller's avatar
    Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next · addb0679
    David S. Miller authored
    Daniel Borkmann says:
    
    ====================
    pull-request: bpf-next 2018-12-11
    
    The following pull-request contains BPF updates for your *net-next* tree.
    
    It has three minor merge conflicts, resolutions:
    
    1) tools/testing/selftests/bpf/test_verifier.c
    
     Take first chunk with alignment_prevented_execution.
    
    2) net/core/filter.c
    
      [...]
      case bpf_ctx_range_ptr(struct __sk_buff, flow_keys):
      case bpf_ctx_range(struct __sk_buff, wire_len):
            return false;
      [...]
    
    3) include/uapi/linux/bpf.h
    
      Take the second chunk for the two cases each.
    
    The main changes are:
    
    1) Add support for BPF line info via BTF and extend libbpf as well
       as bpftool's program dump to annotate output with BPF C code to
       facilitate debugging and introspection, from Martin.
    
    2) Add support for BPF_ALU | BPF_ARSH | BPF_{K,X} in interpreter
       and all JIT backends, from Jiong.
    
    3) Improve BPF test coverage on archs with no efficient unaligned
       access by adding an "any alignment" flag to the BPF program load
       to forcefully disable verifier alignment checks, from David.
    
    4) Add a new bpf_prog_test_run_xattr() API to libbpf which allows for
       proper use of BPF_PROG_TEST_RUN with data_out, from Lorenz.
    
    5) Extend tc BPF programs to use a new __sk_buff field called wire_len
       for more accurate accounting of packets going to wire, from Petar.
    
    6) Improve bpftool to allow dumping the trace pipe from it and add
       several improvements in bash completion and map/prog dump,
       from Quentin.
    
    7) Optimize arm64 BPF JIT to always emit movn/movk/movk sequence for
       kernel addresses and add a dedicated BPF JIT backend allocator,
       from Ard.
    
    8) Add a BPF helper function for IR remotes to report mouse movements,
       from Sean.
    
    9) Various cleanups in BPF prog dump e.g. to make UAPI bpf_prog_info
       member naming consistent with existing conventions, from Yonghong
       and Song.
    
    10) Misc cleanups and improvements in allowing to pass interface name
        via cmdline for xdp1 BPF example, from Matteo.
    
    11) Fix a potential segfault in BPF sample loader's kprobes handling,
        from Daniel T.
    
    12) Fix SPDX license in libbpf's README.rst, from Andrey.
    ====================
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    addb0679
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