kernel/tools/testing/selftests/bpf/prog_tests/bpf_loop.c, branch linux-6.2.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-6.2.y2022-06-21T00:40:52Zselftests/bpf: BPF test_prog selftests for bpf_loop inlining2022-06-21T00:40:52ZEduard Zingermaneddyz87@gmail.com2022-06-20T23:53:44Zurn:sha1:0e1bf9ed2000c16fa8e0703e255a23d64a4adb27
Two new test BPF programs for test_prog selftests checking bpf_loop
behavior. Both are corner cases for bpf_loop inlinig transformation:
- check that bpf_loop behaves correctly when callback function is not
a compile time constant
- check that local function variables are not affected by allocating
additional stack storage for registers spilled by loop inlining
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/r/20220620235344.569325-6-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
selftests/bpf: Add bpf_loop test2021-11-30T18:56:28ZJoanne Koongjoannekoong@fb.com2021-11-30T03:06:20Zurn:sha1:4e5070b64b375a9c1f570893cfceeba108382bef
Add test for bpf_loop testing a variety of cases:
various nr_loops, null callback ctx, invalid flags, nested callbacks.
Signed-off-by: Joanne Koong <joannekoong@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211130030622.4131246-3-joannekoong@fb.com