selftests/bpf: remove filtered subtests from output #486
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Currently filtered subtests show up in the output as skipped. Before: $ sudo ./test_progs -t log_fixup/missing_map #94 /1 log_fixup/bad_core_relo_trunc_none:SKIP #94 /2 log_fixup/bad_core_relo_trunc_partial:SKIP #94 /3 log_fixup/bad_core_relo_trunc_full:SKIP #94 /4 log_fixup/bad_core_relo_subprog:SKIP #94 /5 log_fixup/missing_map:OK #94 log_fixup:OK Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED After: $ sudo ./test_progs -t log_fixup/missing_map #94 /5 log_fixup/missing_map:OK #94 log_fixup:OK Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Mykola Lysenko <[email protected]> Acked-by: Yonghong Song <[email protected]>
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=643444 irrelevant now. Closing PR. |
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Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs") for s390x, add support for 64-bit pointers to kfuncs for LoongArch. Since the infrastructure is already implemented in BPF core, the only thing need to be done is to override bpf_jit_supports_far_kfunc_call(). Before this change, several test_verifier tests failed: # ./test_verifier | grep # | grep FAIL #119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL #120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL #121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL #122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL #123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL #124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL #125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL #126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL #127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL #128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL #129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL #130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL #486/p map_kptr: ref: reference state created and released on xchg FAIL This is because the kfuncs in the loaded module are far away from __bpf_call_base: ffff800002009440 t bpf_kfunc_call_test_fail1 [bpf_testmod] 9000000002e128d8 T __bpf_call_base The offset relative to __bpf_call_base does NOT fit in s32, which breaks the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts this limit. Note that to reproduce the above result, tools/testing/selftests/bpf/config should be applied, and run the test with JIT enabled, unpriv BPF enabled. With this change, the test_verifier tests now all passed: # ./test_verifier ... Summary: 777 PASSED, 0 SKIPPED, 0 FAILED Tested-by: Tiezhu Yang <[email protected]> Signed-off-by: Hengqi Chen <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
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Pull request for series with
subject: selftests/bpf: remove filtered subtests from output
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=643444