This patch set extends the eBPF test suite in the test_bpf kernel module to add more extensive tests of corner cases and new tests for operations not previously covered. An RFC patch set was previously submitted. Link: https://lore.kernel.org/bpf/20210726081738.1833704-1-johan.almbladh@xxxxxxxxxxxxxxxxx/ Changes from RFC patch set: * Changed tail call count limit test to comply with the new behavior of the interpreter, i.e. at most MAX_TAIL_CALL_CNT tail calls are permitted. * Fixed an uninitilized variable in tail call test error path, found by the Kernel test robot. Also fixed a warning due to pointer-to-u32 cast in IMM64 load instructions. The checkpatch.pl script reports an error for the multi-line macro in patch 14/14 ("bpf/tests: Add tail call test suite"). However, it cannot be enclosed in parenthesis as suggested since it is an array element initialization, similar the existing BPF_LD_IMM64() helper macro. It can be replaced, but I do think the code and the intent is clearer this way. Thanks, Johan Johan Almbladh (14): bpf/tests: Add BPF_JMP32 test cases bpf/tests: Add BPF_MOV tests for zero and sign extension bpf/tests: Fix typos in test case descriptions bpf/tests: Add more tests of ALU32 and ALU64 bitwise operations bpf/tests: Add more ALU32 tests for BPF_LSH/RSH/ARSH bpf/tests: Add more BPF_LSH/RSH/ARSH tests for ALU64 bpf/tests: Add more ALU64 BPF_MUL tests bpf/tests: Add tests for ALU operations implemented with function calls bpf/tests: Add word-order tests for load/store of double words bpf/tests: Add branch conversion JIT test bpf/tests: Add test for 32-bit context pointer argument passing bpf/tests: Add tests for atomic operations bpf/tests: Add tests for BPF_CMPXCHG bpf/tests: Add tail call test suite lib/test_bpf.c | 2732 +++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 2475 insertions(+), 257 deletions(-) -- 2.25.1
