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Message-Id: <20220321224608.55798-1-alexei.starovoitov@gmail.com>
Date: Mon, 21 Mar 2022 15:46:08 -0700
From: Alexei Starovoitov <alexei.starovoitov@...il.com>
To: davem@...emloft.net
Cc: daniel@...earbox.net, peterz@...radead.org, rostedt@...dmis.org,
mhiramat@...nel.org, kuba@...nel.org, andrii@...nel.org,
torvalds@...ux-foundation.org, sfr@...b.auug.org.au,
netdev@...r.kernel.org, bpf@...r.kernel.org, kernel-team@...com
Subject: pull-request: bpf-next 2022-03-21
Hi David, hi Jakub,
The following pull-request contains BPF updates for your *net-next* tree.
We've added 132 non-merge commits during the last 17 day(s) which contain
a total of 162 files changed, 7558 insertions(+), 1097 deletions(-).
The main changes are:
1) Custom SEC() handling in libbpf, from Andrii.
2) subskeleton support, from Delyan.
3) Use btf_tag to recognize __percpu pointers in the verifier, from Hao.
4) Fix net.core.bpf_jit_harden race, from Hou.
5) Fix bpf_sk_lookup remote_port on big-endian, from Jakub.
6) Introduce fprobe (multi kprobe), from Masami.
7) Introduce multi_kprobe bpf programs on top of fprobe, from Jiri.
8) Enable non-atomic allocations in local storage, from Joanne.
9) Various var_off ptr_to_btf_id fixed, from Kumar.
10) bpf_ima_file_hash helper, from Roberto.
11) Add "live packet" mode for XDP in BPF_PROG_RUN, from Toke.
There should be no merge conflicts with net-next,
but fprobe changes conflict with Peter's endbr set.
The objtool warnings will need a fix like:
https://lore.kernel.org/lkml/YjisdqdofbDIYj2U@hirez.programming.kicks-ass.net/
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:
Alan Maguire, Andrii Nakryiko, Dan Carpenter, "Geyslan G. Bem", Joanne
Koong, John Fastabend, kernel test robot, KP Singh, Martin KaFai Lau,
Masami Hiramatsu, Mimi Zohar, Nathan Chancellor, Quentin Monnet, Shuah
Khan, Stanislav Fomichev, Steven Rostedt (Google), Toke
Hoiland-Jorgensen, Toke Høiland-Jørgensen, Yonghong Song
----------------------------------------------------------------
The following changes since commit d59e3cbaef707f0d3dc1e3b6735cb25060ca74c2:
Merge branch 'bnxt_en-updates' (2022-03-05 11:16:56 +0000)
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 f97b8b9bd630fb76c0e9e11cbf390e3d64a144d7:
bpftool: Fix a bug in subskeleton code generation (2022-03-21 14:46:10 -0700)
----------------------------------------------------------------
Adrian Ratiu (1):
tools: Fix unavoidable GCC call in Clang builds
Alexei Starovoitov (10):
Merge branch 'libbpf: support custom SEC() handlers'
Merge branch 'Fixes for bad PTR_TO_BTF_ID offset'
Merge branch 'bpf: add __percpu tagging in vmlinux BTF'
Merge branch 'Add support for transmitting packets using XDP in bpf_prog_run()'
Merge branch 'bpf-lsm: Extend interoperability with IMA'
Merge branch 'Remove libcap dependency from bpf selftests'
Merge branch 'fprobe: Introduce fprobe function entry/exit probe'
Merge branch 'bpf: Add kprobe multi link'
Merge branch 'Enable non-atomic allocations in local storage'
Merge branch 'Make 2-byte access to bpf_sk_lookup->remote_port endian-agnostic'
Andrii Nakryiko (7):
libbpf: Allow BPF program auto-attach handlers to bail out
libbpf: Support custom SEC() handlers
selftests/bpf: Add custom SEC() handling selftest
Merge branch 'BPF test_progs tests improvement'
Merge branch 'Subskeleton support for BPF librariesThread-Topic: [PATCH bpf-next v4 0/5'
bpftool: Add BPF_TRACE_KPROBE_MULTI to attach type names table
libbpf: Avoid NULL deref when initializing map BTF info
Chris J Arges (1):
bpftool: Ensure bytes_memlock json output is correct
Daniel Borkmann (2):
Merge branch 'bpf-tstamp-follow-ups'
Merge branch 'bpf-fix-sock-field-tests'
Daniel Xu (1):
bpftool: man: Add missing top level docs
Delyan Kratunov (5):
libbpf: .text routines are subprograms in strict mode
libbpf: Init btf_{key,value}_type_id on internal map open
libbpf: Add subskeleton scaffolding
bpftool: Add support for subskeletons
selftests/bpf: Test subskeleton functionality
Dmitrii Dolgov (1):
bpftool: Add bpf_cookie to link output
Felix Maurer (1):
selftests/bpf: Make test_lwt_ip_encap more stable and faster
Guo Zhengkui (2):
libbpf: Fix array_size.cocci warning
selftests/bpf: Clean up array_size.cocci warnings
Hangbin Liu (1):
selftests/bpf/test_lirc_mode2.sh: Exit with proper code
Hao Luo (5):
bpf: Fix checking PTR_TO_BTF_ID in check_mem_access
compiler_types: Define __percpu as __attribute__((btf_type_tag("percpu")))
bpf: Reject programs that try to load __percpu memory.
selftests/bpf: Add a test for btf_type_tag "percpu"
compiler_types: Refactor the use of btf_type_tag attribute.
Hengqi Chen (2):
bpf: Fix comment for helper bpf_current_task_under_cgroup()
libbpf: Close fd in bpf_object__reuse_map
Hou Tao (3):
bpf, x86: Fall back to interpreter mode when extra pass fails
bpf: Fix net.core.bpf_jit_harden race
selftests/bpf: Test subprog jit when toggle bpf_jit_harden repeatedly
Jakub Sitnicki (7):
selftests/bpf: Fix error reporting from sock_fields programs
selftests/bpf: Check dst_port only on the client socket
selftests/bpf: Use constants for socket states in sock_fields test
selftests/bpf: Fix test for 4-byte load from dst_port on big-endian
bpf: Treat bpf_sk_lookup remote_port as a 2-byte field
selftests/bpf: Fix u8 narrow load checks for bpf_sk_lookup remote_port
selftests/bpf: Fix test for 4-byte load from remote_port on big-endian
Jiri Olsa (16):
ftrace: Add ftrace_set_filter_ips function
lib/sort: Add priv pointer to swap function
kallsyms: Skip the name search for empty string
bpf: Add multi kprobe link
bpf: Add bpf_get_func_ip kprobe helper for multi kprobe link
bpf: Add support to inline bpf_get_func_ip helper on x86
bpf: Add cookie support to programs attached with kprobe multi link
libbpf: Add libbpf_kallsyms_parse function
libbpf: Add bpf_link_create support for multi kprobes
libbpf: Add bpf_program__attach_kprobe_multi_opts function
selftests/bpf: Add kprobe_multi attach test
selftests/bpf: Add kprobe_multi bpf_cookie test
selftests/bpf: Add attach test for bpf_program__attach_kprobe_multi_opts
selftests/bpf: Add cookie test for bpf_program__attach_kprobe_multi_opts
Revert "bpf: Add support to inline bpf_get_func_ip helper on x86"
bpf: Fix kprobe_multi return probe backtrace
Joanne Koong (3):
bpf: Enable non-atomic allocations in local storage
selftests/bpf: Test for associating multiple elements with the local storage
bpf: Fix warning for cast from restricted gfp_t in verifier
Julia Lawall (1):
bpf, arm: Fix various typos in comments
KP Singh (2):
bpf/docs: Update vmtest docs for static linking
bpf/docs: Update list of architectures supported.
Kaixi Fan (1):
selftests/bpf: Fix tunnel remote IP comments
Kumar Kartikeya Dwivedi (10):
bpf: Add check_func_arg_reg_off function
bpf: Fix PTR_TO_BTF_ID var_off check
bpf: Disallow negative offset in check_ptr_off_reg
bpf: Harden register offset checks for release helpers and kfuncs
compiler_types.h: Add unified __diag_ignore_all for GCC/LLVM
bpf: Replace __diag_ignore with unified __diag_ignore_all
selftests/bpf: Add tests for kfunc register offset checks
bpf: Factor out fd returning from bpf_btf_find_by_name_kind
bpf: Always raise reference in btf_get_module_btf
bpf: Check for NULL return from bpf_get_btf_vmlinux
Lorenzo Bianconi (3):
net: veth: Account total xdp_frame len running ndo_xdp_xmit
veth: Rework veth_xdp_rcv_skb in order to accept non-linear skb
veth: Allow jumbo frames in xdp mode
Martin KaFai Lau (8):
bpf: net: Remove TC_AT_INGRESS_OFFSET and SKB_MONO_DELIVERY_TIME_OFFSET macro
bpf: Simplify insn rewrite on BPF_READ __sk_buff->tstamp
bpf: Simplify insn rewrite on BPF_WRITE __sk_buff->tstamp
bpf: Remove BPF_SKB_DELIVERY_TIME_NONE and rename s/delivery_time_/tstamp_/
bpf: selftests: Update tests after s/delivery_time/tstamp/ change in bpf.h
bpf: selftests: Add helpers to directly use the capget and capset syscall
bpf: selftests: Remove libcap usage from test_verifier
bpf: selftests: Remove libcap usage from test_progs
Masami Hiramatsu (11):
fprobe: Add ftrace based probe APIs
rethook: Add a generic return hook
rethook: x86: Add rethook x86 implementation
arm64: rethook: Add arm64 rethook implementation
powerpc: Add rethook support
ARM: rethook: Add rethook arm implementation
fprobe: Add exit_handler support
fprobe: Add sample program for fprobe
fprobe: Introduce FPROBE_FL_KPROBE_SHARED flag for fprobe
docs: fprobe: Add fprobe description to ftrace-use.rst
fprobe: Add a selftest for fprobe
Mykola Lysenko (3):
Improve perf related BPF tests (sample_freq issue)
Improve send_signal BPF test stability
Improve stability of find_vma BPF test
Namhyung Kim (2):
bpf: Adjust BPF stack helper functions to accommodate skip > 0
selftests/bpf: Test skipping stacktrace
Nathan Chancellor (1):
compiler-clang.h: Add __diag infrastructure for clang
Niklas Söderlund (2):
bpftool: Restore support for BPF offload-enabled feature probing
samples/bpf, xdpsock: Fix race when running for fix duration of time
Roberto Sassu (9):
ima: Fix documentation-related warnings in ima_main.c
ima: Always return a file measurement in ima_file_hash()
bpf-lsm: Introduce new helper bpf_ima_file_hash()
selftests/bpf: Move sample generation code to ima_test_common()
selftests/bpf: Add test for bpf_ima_file_hash()
selftests/bpf: Check if the digest is refreshed after a file write
bpf-lsm: Make bpf_lsm_kernel_read_file() as sleepable
selftests/bpf: Add test for bpf_lsm_kernel_read_file()
selftests/bpf: Check that bpf_kernel_read_file() denies reading IMA policy
Shung-Hsi Yu (1):
bpf: Determine buf_info inside check_buffer_access()
Song Liu (3):
bpf: Select proper size for bpf_prog_pack
bpf: Fix bpf_prog_pack for multi-node setup
bpf: Fix bpf_prog_pack when PMU_SIZE is not defined
Toke Høiland-Jørgensen (8):
bpf: Add "live packet" mode for XDP in BPF_PROG_RUN
Documentation/bpf: Add documentation for BPF_PROG_RUN
libbpf: Support batch_size option to bpf_prog_test_run
selftests/bpf: Move open_netns() and close_netns() into network_helpers.c
selftests/bpf: Add selftest for XDP_REDIRECT in BPF_PROG_RUN
bpf: Initialise retval in bpf_prog_test_run_xdp()
bpf, test_run: Fix packet size check for live packet mode
selftests/bpf: Add a test for maximum packet size in xdp_do_redirect
Wang Yufen (4):
bpf, sockmap: Fix memleak in sk_psock_queue_msg
bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full
bpf, sockmap: Fix more uncharged while msg has more_data
bpf, sockmap: Fix double uncharge the mem of sk_msg
Yafang Shao (1):
bpftool: Fix print error when show bpf map
Yihao Han (1):
bpf, test_run: Use kvfree() for memory allocated with kvmalloc()
Yonghong Song (2):
selftests/bpf: Fix a clang compilation error for send_signal.c
bpftool: Fix a bug in subskeleton code generation
Yuntao Wang (4):
bpf: Replace strncpy() with strscpy()
bpf: Remove redundant slash
bpf: Use offsetofend() to simplify macro definition
bpf: Simplify check in btf_parse_hdr()
lic121 (1):
libbpf: Unmap rings when umem deleted
Documentation/bpf/bpf_prog_run.rst | 117 ++++
Documentation/bpf/index.rst | 1 +
Documentation/trace/fprobe.rst | 174 +++++
Documentation/trace/index.rst | 1 +
arch/arm/Kconfig | 1 +
arch/arm/include/asm/stacktrace.h | 4 +-
arch/arm/kernel/stacktrace.c | 6 +
arch/arm/net/bpf_jit_32.c | 4 +-
arch/arm/probes/Makefile | 1 +
arch/arm/probes/rethook.c | 103 +++
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/stacktrace.h | 2 +-
arch/arm64/kernel/probes/Makefile | 1 +
arch/arm64/kernel/probes/rethook.c | 25 +
arch/arm64/kernel/probes/rethook_trampoline.S | 87 +++
arch/arm64/kernel/stacktrace.c | 7 +-
arch/powerpc/Kconfig | 1 +
arch/powerpc/kernel/Makefile | 1 +
arch/powerpc/kernel/rethook.c | 72 +++
arch/x86/Kconfig | 1 +
arch/x86/include/asm/unwind.h | 8 +-
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/kprobes/common.h | 1 +
arch/x86/kernel/rethook.c | 119 ++++
arch/x86/net/bpf_jit_comp.c | 11 +-
drivers/net/veth.c | 192 ++++--
include/linux/bpf.h | 11 +-
include/linux/bpf_local_storage.h | 7 +-
include/linux/bpf_types.h | 1 +
include/linux/bpf_verifier.h | 4 +
include/linux/compiler-clang.h | 25 +
include/linux/compiler-gcc.h | 3 +
include/linux/compiler_types.h | 18 +-
include/linux/filter.h | 3 +-
include/linux/fprobe.h | 105 +++
include/linux/ftrace.h | 3 +
include/linux/kprobes.h | 3 +
include/linux/rethook.h | 100 +++
include/linux/sched.h | 3 +
include/linux/skbuff.h | 10 +-
include/linux/skmsg.h | 13 +-
include/linux/sort.h | 2 +-
include/linux/trace_events.h | 7 +
include/linux/types.h | 1 +
include/net/xdp.h | 14 +
include/uapi/linux/bpf.h | 80 ++-
kernel/bpf/Kconfig | 1 +
kernel/bpf/bpf_inode_storage.c | 9 +-
kernel/bpf/bpf_local_storage.c | 58 +-
kernel/bpf/bpf_lsm.c | 21 +
kernel/bpf/bpf_task_storage.c | 10 +-
kernel/bpf/btf.c | 166 +++--
kernel/bpf/core.c | 89 ++-
kernel/bpf/helpers.c | 9 +-
kernel/bpf/preload/Makefile | 5 +-
kernel/bpf/stackmap.c | 56 +-
kernel/bpf/syscall.c | 28 +-
kernel/bpf/verifier.c | 161 +++--
kernel/exit.c | 2 +
kernel/fork.c | 3 +
kernel/kallsyms.c | 4 +
kernel/trace/Kconfig | 26 +
kernel/trace/Makefile | 2 +
kernel/trace/bpf_trace.c | 348 +++++++++-
kernel/trace/fprobe.c | 332 ++++++++++
kernel/trace/ftrace.c | 58 +-
kernel/trace/rethook.c | 317 +++++++++
lib/Kconfig.debug | 12 +
lib/Makefile | 2 +
lib/sort.c | 40 +-
lib/test_fprobe.c | 174 +++++
net/bpf/test_run.c | 351 +++++++++-
net/core/bpf_sk_storage.c | 23 +-
net/core/filter.c | 153 +++--
net/core/skmsg.c | 17 +-
net/core/xdp.c | 1 +
net/ipv4/tcp_bpf.c | 14 +-
net/netfilter/nf_conntrack_bpf.c | 5 +-
samples/Kconfig | 7 +
samples/Makefile | 1 +
samples/bpf/xdpsock_user.c | 6 +-
samples/fprobe/Makefile | 3 +
samples/fprobe/fprobe_example.c | 120 ++++
security/integrity/ima/ima_main.c | 57 +-
tools/bpf/bpftool/Documentation/bpftool-gen.rst | 25 +
tools/bpf/bpftool/Documentation/bpftool.rst | 13 +-
tools/bpf/bpftool/bash-completion/bpftool | 14 +-
tools/bpf/bpftool/common.c | 2 +-
tools/bpf/bpftool/feature.c | 152 ++++-
tools/bpf/bpftool/gen.c | 587 ++++++++++++++---
tools/bpf/bpftool/main.h | 2 +
tools/bpf/bpftool/map.c | 9 +-
tools/bpf/bpftool/pids.c | 8 +
tools/bpf/bpftool/prog.c | 2 +-
tools/bpf/bpftool/skeleton/pid_iter.bpf.c | 22 +
tools/bpf/bpftool/skeleton/pid_iter.h | 2 +
tools/include/uapi/linux/bpf.h | 72 ++-
tools/lib/bpf/bpf.c | 13 +-
tools/lib/bpf/bpf.h | 12 +-
tools/lib/bpf/libbpf.c | 720 ++++++++++++++++-----
tools/lib/bpf/libbpf.h | 161 +++++
tools/lib/bpf/libbpf.map | 9 +
tools/lib/bpf/libbpf_internal.h | 5 +
tools/lib/bpf/libbpf_legacy.h | 4 +
tools/lib/bpf/libbpf_version.h | 2 +-
tools/lib/bpf/xsk.c | 15 +-
tools/scripts/Makefile.include | 4 +
tools/testing/selftests/bpf/.gitignore | 1 +
tools/testing/selftests/bpf/Makefile | 20 +-
tools/testing/selftests/bpf/README.rst | 10 +-
.../selftests/bpf/bpf_testmod/bpf_testmod.c | 14 +
tools/testing/selftests/bpf/cap_helpers.c | 67 ++
tools/testing/selftests/bpf/cap_helpers.h | 19 +
tools/testing/selftests/bpf/ima_setup.sh | 35 +-
tools/testing/selftests/bpf/network_helpers.c | 86 +++
tools/testing/selftests/bpf/network_helpers.h | 9 +
tools/testing/selftests/bpf/prog_tests/bind_perm.c | 44 +-
.../testing/selftests/bpf/prog_tests/bpf_cookie.c | 179 ++++-
tools/testing/selftests/bpf/prog_tests/btf_tag.c | 164 ++++-
.../bpf/prog_tests/cgroup_attach_autodetach.c | 2 +-
.../selftests/bpf/prog_tests/cgroup_attach_multi.c | 2 +-
.../bpf/prog_tests/cgroup_attach_override.c | 2 +-
.../selftests/bpf/prog_tests/custom_sec_handlers.c | 176 +++++
tools/testing/selftests/bpf/prog_tests/find_vma.c | 30 +-
.../testing/selftests/bpf/prog_tests/global_data.c | 6 +-
.../selftests/bpf/prog_tests/kprobe_multi_test.c | 323 +++++++++
tools/testing/selftests/bpf/prog_tests/obj_name.c | 2 +-
.../selftests/bpf/prog_tests/perf_branches.c | 4 +-
tools/testing/selftests/bpf/prog_tests/perf_link.c | 2 +-
.../testing/selftests/bpf/prog_tests/send_signal.c | 17 +-
.../selftests/bpf/prog_tests/stacktrace_map_skip.c | 63 ++
tools/testing/selftests/bpf/prog_tests/subprogs.c | 77 ++-
.../testing/selftests/bpf/prog_tests/subskeleton.c | 78 +++
.../testing/selftests/bpf/prog_tests/tc_redirect.c | 89 ---
tools/testing/selftests/bpf/prog_tests/test_ima.c | 149 ++++-
.../selftests/bpf/prog_tests/xdp_do_redirect.c | 201 ++++++
.../selftests/bpf/progs/btf_type_tag_percpu.c | 66 ++
tools/testing/selftests/bpf/progs/ima.c | 66 +-
tools/testing/selftests/bpf/progs/kprobe_multi.c | 98 +++
tools/testing/selftests/bpf/progs/local_storage.c | 19 +
.../selftests/bpf/progs/stacktrace_map_skip.c | 68 ++
.../selftests/bpf/progs/test_custom_sec_handlers.c | 63 ++
.../selftests/bpf/progs/test_send_signal_kern.c | 2 +-
tools/testing/selftests/bpf/progs/test_sk_lookup.c | 13 +-
.../testing/selftests/bpf/progs/test_sock_fields.c | 24 +-
.../testing/selftests/bpf/progs/test_subskeleton.c | 28 +
.../selftests/bpf/progs/test_subskeleton_lib.c | 61 ++
.../selftests/bpf/progs/test_subskeleton_lib2.c | 16 +
tools/testing/selftests/bpf/progs/test_tc_dtime.c | 38 +-
.../selftests/bpf/progs/test_xdp_do_redirect.c | 100 +++
tools/testing/selftests/bpf/test_cgroup_storage.c | 2 +-
tools/testing/selftests/bpf/test_lirc_mode2.sh | 5 +-
tools/testing/selftests/bpf/test_lru_map.c | 4 +-
tools/testing/selftests/bpf/test_lwt_ip_encap.sh | 10 +-
tools/testing/selftests/bpf/test_sock_addr.c | 6 +-
tools/testing/selftests/bpf/test_sockmap.c | 4 +-
tools/testing/selftests/bpf/test_tunnel.sh | 2 +-
tools/testing/selftests/bpf/test_verifier.c | 88 +--
tools/testing/selftests/bpf/trace_helpers.c | 7 +
.../selftests/bpf/verifier/bounds_deduction.c | 2 +-
tools/testing/selftests/bpf/verifier/calls.c | 83 +++
tools/testing/selftests/bpf/verifier/ctx.c | 8 +-
162 files changed, 7558 insertions(+), 1097 deletions(-)
create mode 100644 Documentation/bpf/bpf_prog_run.rst
create mode 100644 Documentation/trace/fprobe.rst
create mode 100644 arch/arm/probes/rethook.c
create mode 100644 arch/arm64/kernel/probes/rethook.c
create mode 100644 arch/arm64/kernel/probes/rethook_trampoline.S
create mode 100644 arch/powerpc/kernel/rethook.c
create mode 100644 arch/x86/kernel/rethook.c
create mode 100644 include/linux/fprobe.h
create mode 100644 include/linux/rethook.h
create mode 100644 kernel/trace/fprobe.c
create mode 100644 kernel/trace/rethook.c
create mode 100644 lib/test_fprobe.c
create mode 100644 samples/fprobe/Makefile
create mode 100644 samples/fprobe/fprobe_example.c
create mode 100644 tools/testing/selftests/bpf/cap_helpers.c
create mode 100644 tools/testing/selftests/bpf/cap_helpers.h
create mode 100644 tools/testing/selftests/bpf/prog_tests/custom_sec_handlers.c
create mode 100644 tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
create mode 100644 tools/testing/selftests/bpf/prog_tests/stacktrace_map_skip.c
create mode 100644 tools/testing/selftests/bpf/prog_tests/subskeleton.c
create mode 100644 tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c
create mode 100644 tools/testing/selftests/bpf/progs/btf_type_tag_percpu.c
create mode 100644 tools/testing/selftests/bpf/progs/kprobe_multi.c
create mode 100644 tools/testing/selftests/bpf/progs/stacktrace_map_skip.c
create mode 100644 tools/testing/selftests/bpf/progs/test_custom_sec_handlers.c
create mode 100644 tools/testing/selftests/bpf/progs/test_subskeleton.c
create mode 100644 tools/testing/selftests/bpf/progs/test_subskeleton_lib.c
create mode 100644 tools/testing/selftests/bpf/progs/test_subskeleton_lib2.c
create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_do_redirect.c
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