linux/tools/testing
Alexei Starovoitov 624cd2a176 selftests/bpf: Convert exceptions_assert.c to bpf_cmp
Convert exceptions_assert.c to bpf_cmp_unlikely() macro.

Since

bpf_assert(bpf_cmp_unlikely(var, ==, 100));
other code;

will generate assembly code:

  if r1 == 100 goto L2;
  r0 = 0
  call bpf_throw
L1:
  other code;
  ...

L2: goto L1;

LLVM generates redundant basic block with extra goto. LLVM will be fixed eventually.
Right now it's less efficient than __bpf_assert(var, ==, 100) macro that produces:
  if r1 == 100 goto L1;
  r0 = 0
  call bpf_throw
L1:
  other code;

But extra goto doesn't hurt the verification process.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/bpf/20231226191148.48536-4-alexei.starovoitov@gmail.com
2024-01-03 11:08:23 -08:00
..
crypto/chacha20-s390
cxl cxl: Add cxl_num_decoders_committed() usage to cxl_test 2023-12-04 16:46:14 -08:00
fault-injection
ktest
kunit sound updates for 6.6-rc1 2023-08-30 13:45:05 -07:00
memblock memblock tests: fix warning ‘struct seq_file’ declared inside parameter list 2023-09-14 10:51:28 +03:00
nvdimm ndtest: fix typo class_regster -> class_register 2023-11-27 18:08:02 +00:00
radix-tree radix tree test suite: fix allocation calculation in kmem_cache_alloc_bulk() 2023-10-18 14:34:13 -07:00
scatterlist
selftests selftests/bpf: Convert exceptions_assert.c to bpf_cmp 2024-01-03 11:08:23 -08:00
vsock vsock/test: two tests to check credit update logic 2023-12-15 10:37:35 +00:00