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| author | Mark Brown <broonie@kernel.org> | 2022-05-10 19:45:16 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2022-05-15 13:07:53 +0300 |
| commit | 9a5681710740e496ee8b08004ddf2c212b76b36a (patch) | |
| tree | e7098e4537fbaf504b83a66d9c7b5cbd775dd820 /tools/testing/selftests/arm64/mte | |
| parent | ae60e0763e97e977b03af1ac6ba782a4a86c3a5a (diff) | |
| download | linux-9a5681710740e496ee8b08004ddf2c212b76b36a.tar.xz | |
selftests/arm64: Log errors in verify_mte_pointer_validity()
When we detect a problem in verify_mte_pointer_validity() while checking
tags we don't log what the problem was which makes debugging harder. Add
some diagnostics.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220510164520.768783-2-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/testing/selftests/arm64/mte')
| -rw-r--r-- | tools/testing/selftests/arm64/mte/check_tags_inclusion.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/tools/testing/selftests/arm64/mte/check_tags_inclusion.c b/tools/testing/selftests/arm64/mte/check_tags_inclusion.c index deaef1f61076..b906914997ce 100644 --- a/tools/testing/selftests/arm64/mte/check_tags_inclusion.c +++ b/tools/testing/selftests/arm64/mte/check_tags_inclusion.c @@ -25,8 +25,11 @@ static int verify_mte_pointer_validity(char *ptr, int mode) /* Check the validity of the tagged pointer */ memset((void *)ptr, '1', BUFFER_SIZE); mte_wait_after_trig(); - if (cur_mte_cxt.fault_valid) + if (cur_mte_cxt.fault_valid) { + ksft_print_msg("Unexpected fault recorded for %p-%p in mode %x\n", + ptr, ptr + BUFFER_SIZE, mode); return KSFT_FAIL; + } /* Proceed further for nonzero tags */ if (!MT_FETCH_TAG((uintptr_t)ptr)) return KSFT_PASS; @@ -34,10 +37,13 @@ static int verify_mte_pointer_validity(char *ptr, int mode) /* Check the validity outside the range */ ptr[BUFFER_SIZE] = '2'; mte_wait_after_trig(); - if (!cur_mte_cxt.fault_valid) + if (!cur_mte_cxt.fault_valid) { + ksft_print_msg("No valid fault recorded for %p in mode %x\n", + ptr, mode); return KSFT_FAIL; - else + } else { return KSFT_PASS; + } } static int check_single_included_tags(int mem_type, int mode) |