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2d9116be76
Daniel Borkmann says:
====================
pull-request: bpf-next 2021-01-16
1) Extend atomic operations to the BPF instruction set along with x86-64 JIT support,
that is, atomic{,64}_{xchg,cmpxchg,fetch_{add,and,or,xor}}, from Brendan Jackman.
2) Add support for using kernel module global variables (__ksym externs in BPF
programs) retrieved via module's BTF, from Andrii Nakryiko.
3) Generalize BPF stackmap's buildid retrieval and add support to have buildid
stored in mmap2 event for perf, from Jiri Olsa.
4) Various fixes for cross-building BPF sefltests out-of-tree which then will
unblock wider automated testing on ARM hardware, from Jean-Philippe Brucker.
5) Allow to retrieve SOL_SOCKET opts from sock_addr progs, from Daniel Borkmann.
6) Clean up driver's XDP buffer init and split into two helpers to init per-
descriptor and non-changing fields during processing, from Lorenzo Bianconi.
7) Minor misc improvements to libbpf & bpftool, from Ian Rogers.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (41 commits)
perf: Add build id data in mmap2 event
bpf: Add size arg to build_id_parse function
bpf: Move stack_map_get_build_id into lib
bpf: Document new atomic instructions
bpf: Add tests for new BPF atomic operations
bpf: Add bitwise atomic instructions
bpf: Pull out a macro for interpreting atomic ALU operations
bpf: Add instructions for atomic_[cmp]xchg
bpf: Add BPF_FETCH field / create atomic_fetch_add instruction
bpf: Move BPF_STX reserved field check into BPF_STX verifier code
bpf: Rename BPF_XADD and prepare to encode other atomics in .imm
bpf: x86: Factor out a lookup table for some ALU opcodes
bpf: x86: Factor out emission of REX byte
bpf: x86: Factor out emission of ModR/M for *(reg + off)
tools/bpftool: Add -Wall when building BPF programs
bpf, libbpf: Avoid unused function warning on bpf_tail_call_static
selftests/bpf: Install btf_dump test cases
selftests/bpf: Fix installation of urandom_read
selftests/bpf: Move generated test files to $(TEST_GEN_FILES)
selftests/bpf: Fix out-of-tree build
...
====================
Link: https://lore.kernel.org/r/20210116012922.17823-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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