- Linux-kselftest-mirror - lists.linaro.org

Re: [PATCH v1 0/3] selftests/timers/posix_timers: various cleanups

by Thomas Gleixner

On Thu, Mar 07 2024 at 13:34, Edward Liaw wrote: >> Thanks for picking those up and moving them forward. Any particular >> reason why you didn't pick up the full set? > > I didn't know enough about the code to resolve some of the merges in the > full set. I had run into the issue with the test timer_distribution test > hanging on the Android kernel and wanted to get that fixed first. Fair enough. I've marked your series for my post merge window tree and I'll have a look at the rest of the pile. Thanks, tglx

10 months, 2 weeks

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[PATCH v1 0/3] selftests/timers/posix_timers: various cleanups

by Edward Liaw

I'm sending some patches that were orignally in https://lore.kernel.org/lkml/20230606132949.068951363@linutronix.de/ to prevent the timer_distribution test from hanging and also fix some format inconsistencies. Edward Liaw (3): selftests/timers/posix_timers: Make signal distribution test less fragile selftests/timers/posix_timers: Use TAP reporting format selftests/timers/posix_timers: Use llabs for long long tools/testing/selftests/timers/posix_timers.c | 196 ++++++++---------- 1 file changed, 89 insertions(+), 107 deletions(-) -- 2.44.0.rc1.240.g4c46232300-goog

10 months, 2 weeks

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[PATCH v5 0/9] arm64: Support for 2023 DPISA extensions

by Mark Brown

This series enables support for the data processing extensions in the newly released 2023 architecture, this is mainly support for 8 bit floating point formats. Most of the extensions only introduce new instructions and therefore only require hwcaps but there is a new EL0 visible control register FPMR used to control the 8 bit floating point formats, we need to manage traps for this and context switch it. Due to the very recently merged KVM changes for configuring guest features via ID register writes only being available in -next the support for guest state has been dropped for this version, the relevant KVM interfaces should all be there after the merge window so the code will be refreshed for the new interfaces then. I've not added test coverage for ptrace, my plan is to add support to fp-ptrace (which is now merged so I'll update after the merge window). Signed-off-by: Mark Brown <broonie(a)kernel.org> --- Changes in v5: - Rebase onto v6.8-rc3. - Use u64 rather than unsigned long for storing FPMR. - Temporarily drop KVM guest support due to issues with KVM being a moving target. - Link to v4: https://lore.kernel.org/r/20240122-arm64-2023-dpisa-v4-0-776e094861df@kerne… Changes in v4: - Rebase onto v6.8-rc1. - Move KVM support to the end of the series. - Link to v3: https://lore.kernel.org/r/20231205-arm64-2023-dpisa-v3-0-dbcbcd867a7f@kerne… Changes in v3: - Rebase onto v6.7-rc3. - Hook up traps for FPMR in emulate-nested.c. - Link to v2: https://lore.kernel.org/r/20231114-arm64-2023-dpisa-v2-0-47251894f6a8@kerne… Changes in v2: - Rebase onto v6.7-rc1. - Link to v1: https://lore.kernel.org/r/20231026-arm64-2023-dpisa-v1-0-8470dd989bb2@kerne… --- Mark Brown (9): arm64/cpufeature: Hook new identification registers up to cpufeature arm64/fpsimd: Enable host kernel access to FPMR arm64/fpsimd: Support FEAT_FPMR arm64/signal: Add FPMR signal handling arm64/ptrace: Expose FPMR via ptrace arm64/hwcap: Define hwcaps for 2023 DPISA features kselftest/arm64: Handle FPMR context in generic signal frame parser kselftest/arm64: Add basic FPMR test kselftest/arm64: Add 2023 DPISA hwcap test coverage Documentation/arch/arm64/elf_hwcaps.rst | 49 +++++ arch/arm64/include/asm/cpu.h | 3 + arch/arm64/include/asm/cpufeature.h | 5 + arch/arm64/include/asm/fpsimd.h | 2 + arch/arm64/include/asm/hwcap.h | 15 ++ arch/arm64/include/asm/kvm_arm.h | 2 +- arch/arm64/include/asm/kvm_host.h | 1 + arch/arm64/include/asm/processor.h | 4 + arch/arm64/include/uapi/asm/hwcap.h | 15 ++ arch/arm64/include/uapi/asm/sigcontext.h | 8 + arch/arm64/kernel/cpufeature.c | 72 +++++++ arch/arm64/kernel/cpuinfo.c | 18 ++ arch/arm64/kernel/fpsimd.c | 13 ++ arch/arm64/kernel/ptrace.c | 42 ++++ arch/arm64/kernel/signal.c | 59 ++++++ arch/arm64/kvm/fpsimd.c | 1 + arch/arm64/tools/cpucaps | 1 + include/uapi/linux/elf.h | 1 + tools/testing/selftests/arm64/abi/hwcap.c | 217 +++++++++++++++++++++ tools/testing/selftests/arm64/signal/.gitignore | 1 + .../arm64/signal/testcases/fpmr_siginfo.c | 82 ++++++++ .../selftests/arm64/signal/testcases/testcases.c | 8 + .../selftests/arm64/signal/testcases/testcases.h | 1 + 23 files changed, 619 insertions(+), 1 deletion(-) --- base-commit: 54be6c6c5ae8e0d93a6c4641cb7528eb0b6ba478 change-id: 20231003-arm64-2023-dpisa-2f3d25746474 Best regards, -- Mark Brown <broonie(a)kernel.org>

10 months, 2 weeks

2
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[PATCH v5 0/8] Split a folio to any lower order folios

by Zi Yan

From: Zi Yan <ziy(a)nvidia.com> Hi all, File folio supports any order and multi-size THP is upstreamed[1], so both file and anonymous folios can be >0 order. Currently, split_huge_page() only splits a huge page to order-0 pages, but splitting to orders higher than 0 might better utilize large folios, if done properly. In addition, Large Block Sizes in XFS support would benefit from it during truncate[2]. This patchset adds support for splitting a large folio to any lower order folios. The patchset is on top of mm-everything-2024-02-24-02-40. In addition to this implementation of split_huge_page_to_list_to_order(), a possible optimization could be splitting a large folio to arbitrary smaller folios instead of a single order. As both Hugh and Ryan pointed out [3,5] that split to a single order might not be optimal, an order-9 folio might be better split into 1 order-8, 1 order-7, ..., 1 order-1, and 2 order-0 folios, depending on subsequent folio operations. Leave this as future work. Changelog === Since v4[4] 1. Picked up Matthew's order-1 folio support in the page cache patch, so that XFS Large Block Sizes patchset can avoid additional code churn in split_huge_page_to_list_to_order(). 2. Dropped truncate change patch and corresponding testing code. 3. Removed thp_nr_pages() use in __split_huge_page() (per David Hildenbrand). 4. Fixed __split_page_owner() (per David Hildenbrand). 5. Changed unmap_folio() to only add TTU_SPLIT_HUGE_PMD if the folios is pmd mappable (per Ryan Roberts). 6. Moved swapcached folio split warning upfront and return -EINVAL (per Ryan Roberts). Since v3 --- 1. Excluded shmem folios and pagecache folios without FS support from splitting to any order (per Hugh Dickins). 2. Allowed splitting anonymous large folio to any lower order since multi-size THP is upstreamed. 3. Adapted selftests code to new framework. Since v2 --- 1. Fixed an issue in __split_page_owner() introduced during my rebase Since v1 --- 1. Changed split_page_memcg() and split_page_owner() parameter to use order 2. Used folio_test_pmd_mappable() in place of the equivalent code Details === * Patch 1 changes unmap_folio() to only add TTU_SPLIT_HUGE_PMD if the folio is pmd mappable. * Patch 2 adds support for order-1 page cache folio. * Patch 3 changes split_page_memcg() to use order instead of nr_pages. * Patch 4 changes split_page_owner() to use order instead of nr_pages. * Patch 5 and 6 add new_order parameter split_page_memcg() and split_page_owner() and prepare for upcoming changes. * Patch 7 adds split_huge_page_to_list_to_order() to split a huge page to any lower order. The original split_huge_page_to_list() calls split_huge_page_to_list_to_order() with new_order = 0. * Patch 8 adds a test API to debugfs and test cases in split_huge_page_test selftests. Comments and/or suggestions are welcome. [1] https://lore.kernel.org/all/20231207161211.2374093-1-ryan.roberts@arm.com/ [2] https://lore.kernel.org/linux-mm/20240226094936.2677493-1-kernel@pankajragh… [3] https://lore.kernel.org/linux-mm/9dd96da-efa2-5123-20d4-4992136ef3ad@google… [4] https://lore.kernel.org/linux-mm/cbb1d6a0-66dd-47d0-8733-f836fe050374@arm.c… [5] https://lore.kernel.org/linux-mm/20240213215520.1048625-1-zi.yan@sent.com/ Matthew Wilcox (Oracle) (1): mm: Support order-1 folios in the page cache Zi Yan (7): mm/huge_memory: only split PMD mapping when necessary in unmap_folio() mm/memcg: use order instead of nr in split_page_memcg() mm/page_owner: use order instead of nr in split_page_owner() mm: memcg: make memcg huge page split support any order split. mm: page_owner: add support for splitting to any order in split page_owner. mm: thp: split huge page to any lower order pages mm: huge_memory: enable debugfs to split huge pages to any order. include/linux/huge_mm.h | 21 ++- include/linux/memcontrol.h | 4 +- include/linux/page_owner.h | 14 +- mm/filemap.c | 2 - mm/huge_memory.c | 173 +++++++++++++----- mm/internal.h | 3 +- mm/memcontrol.c | 10 +- mm/page_alloc.c | 8 +- mm/page_owner.c | 6 +- mm/readahead.c | 3 - .../selftests/mm/split_huge_page_test.c | 115 +++++++++++- 11 files changed, 276 insertions(+), 83 deletions(-) -- 2.43.0

10 months, 2 weeks

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[PATCH v3 0/2] selftests/vDSO: Fix errors on LoongArch

by Tiezhu Yang

v3: Rebase on the next branch of linux-kselftest.git, modify the patch title and update the commit message v2: Rebase on 6.5-rc1 and update the commit message Tiezhu Yang (2): selftests/vDSO: Fix building errors on LoongArch selftests/vDSO: Fix runtime errors on LoongArch tools/testing/selftests/vDSO/vdso_config.h | 6 ++++- .../testing/selftests/vDSO/vdso_test_getcpu.c | 16 +++++------- .../selftests/vDSO/vdso_test_gettimeofday.c | 26 +++++-------------- 3 files changed, 18 insertions(+), 30 deletions(-) -- 2.42.0

10 months, 2 weeks

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[PATCH v2] kunit: tool: add ability to parse multiple files

by Rae Moar

Add ability to parse multiple files. Additionally add the ability to parse all results in the KUnit debugfs repository. How to parse multiple files: ./tools/testing/kunit/kunit.py parse results.log results2.log How to parse all files in directory: ./tools/testing/kunit/kunit.py parse directory_path/* How to parse KUnit debugfs repository: ./tools/testing/kunit/kunit.py parse debugfs For each file, the parser outputs the file name, results, and test summary. At the end of all parsing, the parser outputs a total summary line. This feature can be easily tested on the tools/testing/kunit/test_data/ directory. Signed-off-by: Rae Moar <rmoar(a)google.com> --- Changes since v1: - Annotate type of parsed_files - Add ability to input file name from stdin again - Make for loops a bit terser - Add no output warning - Change feature to take in multiple fields rather than a directory. Currently nonrecursive. Let me know if people would prefer this as recursive. tools/testing/kunit/kunit.py | 45 +++++++++++++++++++++++++----------- 1 file changed, 32 insertions(+), 13 deletions(-) diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py index bc74088c458a..df804a118aa5 100755 --- a/tools/testing/kunit/kunit.py +++ b/tools/testing/kunit/kunit.py @@ -511,19 +511,37 @@ def exec_handler(cli_args: argparse.Namespace) -> None: def parse_handler(cli_args: argparse.Namespace) -> None: - if cli_args.file is None: + parsed_files = [] # type: List[str] + total_test = kunit_parser.Test() + total_test.status = kunit_parser.TestStatus.SUCCESS + if cli_args.files is None: sys.stdin.reconfigure(errors='backslashreplace') # type: ignore - kunit_output = sys.stdin # type: Iterable[str] + parsed_files.append(sys.stdin) + elif cli_args.files[0] == "debugfs" and len(cli_args.files) == 1: + for (root, _, files) in os.walk("/sys/kernel/debug/kunit"): + parsed_files.extend(os.path.join(root, f) for f in files if f == "results") else: - with open(cli_args.file, 'r', errors='backslashreplace') as f: + parsed_files.extend(f for f in cli_args.files if os.path.isfile(f)) + + if len(parsed_files) == 0: + print("No output found.") + + for file in parsed_files: + print(file) + with open(file, 'r', errors='backslashreplace') as f: kunit_output = f.read().splitlines() - # We know nothing about how the result was created! - metadata = kunit_json.Metadata() - request = KunitParseRequest(raw_output=cli_args.raw_output, - json=cli_args.json) - result, _ = parse_tests(request, metadata, kunit_output) - if result.status != KunitStatus.SUCCESS: - sys.exit(1) + # We know nothing about how the result was created! + metadata = kunit_json.Metadata() + request = KunitParseRequest(raw_output=cli_args.raw_output, + json=cli_args.json) + _, test = parse_tests(request, metadata, kunit_output) + total_test.subtests.append(test) + + if len(parsed_files) > 1: # if more than one file was parsed output total summary + print('All files parsed.') + stdout.print_with_timestamp(kunit_parser.DIVIDER) + kunit_parser.bubble_up_test_results(total_test) + kunit_parser.print_summary_line(total_test) subcommand_handlers_map = { @@ -569,9 +587,10 @@ def main(argv: Sequence[str]) -> None: help='Parses KUnit results from a file, ' 'and parses formatted results.') add_parse_opts(parse_parser) - parse_parser.add_argument('file', - help='Specifies the file to read results from.', - type=str, nargs='?', metavar='input_file') + parse_parser.add_argument('files', + help='List of file paths to read results from or keyword' + '"debugfs" to read all results from the debugfs directory.', + type=str, nargs='*', metavar='input_files') cli_args = parser.parse_args(massage_argv(argv)) base-commit: 806cb2270237ce2ec672a407d66cee17a07d3aa2 -- 2.44.0.278.ge034bb2e1d-goog

10 months, 2 weeks

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[PATCH v2 0/3] selftests/mm: Improve Hugepage Test Handling in MM Selftests

by Nico Pache

This series addresses issues related to hugepage requirements in the MM selftests, ensuring tests are skipped rather than failing when the necessary hugepage count is not met. This adjustment allows for a more graceful handling for systems with insufficient hugepages, preventing unnecessary test failures and improving the overall robustness of the test suite. Nico Pache (3): selftests/mm: Dont fail testsuite due to a lack of hugepages selftests/mm: Skip uffd hugetlb tests with insufficient hugepages selftests/mm: Skip the hugetlb-madvise tests on unmet hugepage requirements Changes from v1: - Added checks to skip tests when hugepage requirements are not met, rather than exiting with a failure. tools/testing/selftests/mm/hugetlb-madvise.c | 2 +- tools/testing/selftests/mm/run_vmtests.sh | 1 - tools/testing/selftests/mm/uffd-stress.c | 6 ++++++ 3 files changed, 7 insertions(+), 2 deletions(-) -- 2.44.0

10 months, 2 weeks

1
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[PATCH v4 00/14] arm64: Support for 2023 DPISA extensions

by Mark Brown

This series enables support for the data processing extensions in the newly released 2023 architecture, this is mainly support for 8 bit floating point formats. Most of the extensions only introduce new instructions and therefore only require hwcaps but there is a new EL0 visible control register FPMR used to control the 8 bit floating point formats, we need to manage traps for this and context switch it. Due to uncertainty with the plan for parsing ID registers to identify which features to expose to the guest the KVM support is placed at the end of the series, it will need to be revised once that issue is resolved. The sharing of floating point save code between the host and guest kernels slightly complicates the introduction of KVM support, we first introduce host support with some placeholders for KVM then replace those with the actual KVM support. I've not added test coverage for ptrace, I've got a test program which exercises all the FP ptrace interfaces and their interactions together, my plan is to cover it there rather than add another tiny test program that duplicates the boilerplace for tracing a target and doesn't actually run the traced program. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- Changes in v4: - Rebase onto v6.8-rc1. - Move KVM support to the end of the series. - Link to v3: https://lore.kernel.org/r/20231205-arm64-2023-dpisa-v3-0-dbcbcd867a7f@kerne… Changes in v3: - Rebase onto v6.7-rc3. - Hook up traps for FPMR in emulate-nested.c. - Link to v2: https://lore.kernel.org/r/20231114-arm64-2023-dpisa-v2-0-47251894f6a8@kerne… Changes in v2: - Rebase onto v6.7-rc1. - Link to v1: https://lore.kernel.org/r/20231026-arm64-2023-dpisa-v1-0-8470dd989bb2@kerne… --- Mark Brown (14): arm64/cpufeature: Hook new identification registers up to cpufeature arm64/fpsimd: Enable host kernel access to FPMR arm64/fpsimd: Support FEAT_FPMR arm64/signal: Add FPMR signal handling arm64/ptrace: Expose FPMR via ptrace arm64/hwcap: Define hwcaps for 2023 DPISA features kselftest/arm64: Handle FPMR context in generic signal frame parser kselftest/arm64: Add basic FPMR test kselftest/arm64: Add 2023 DPISA hwcap test coverage KVM: arm64: Share all userspace hardened thread data with the hypervisor KVM: arm64: Add newly allocated ID registers to register descriptions KVM: arm64: Support FEAT_FPMR for guests KVM: arm64: selftests: Document feature registers added in 2023 extensions KVM: arm64: selftests: Teach get-reg-list about FPMR Documentation/arch/arm64/elf_hwcaps.rst | 49 +++++ arch/arm64/include/asm/cpu.h | 3 + arch/arm64/include/asm/cpufeature.h | 5 + arch/arm64/include/asm/fpsimd.h | 2 + arch/arm64/include/asm/hwcap.h | 15 ++ arch/arm64/include/asm/kvm_arm.h | 4 +- arch/arm64/include/asm/kvm_host.h | 5 +- arch/arm64/include/asm/processor.h | 6 +- arch/arm64/include/uapi/asm/hwcap.h | 15 ++ arch/arm64/include/uapi/asm/sigcontext.h | 8 + arch/arm64/kernel/cpufeature.c | 72 +++++++ arch/arm64/kernel/cpuinfo.c | 18 ++ arch/arm64/kernel/fpsimd.c | 13 ++ arch/arm64/kernel/ptrace.c | 42 ++++ arch/arm64/kernel/signal.c | 59 ++++++ arch/arm64/kvm/emulate-nested.c | 8 + arch/arm64/kvm/fpsimd.c | 14 +- arch/arm64/kvm/hyp/include/hyp/switch.h | 9 +- arch/arm64/kvm/hyp/nvhe/hyp-main.c | 4 +- arch/arm64/kvm/sys_regs.c | 17 +- arch/arm64/tools/cpucaps | 1 + include/uapi/linux/elf.h | 1 + tools/testing/selftests/arm64/abi/hwcap.c | 217 +++++++++++++++++++++ tools/testing/selftests/arm64/signal/.gitignore | 1 + .../arm64/signal/testcases/fpmr_siginfo.c | 82 ++++++++ .../selftests/arm64/signal/testcases/testcases.c | 8 + .../selftests/arm64/signal/testcases/testcases.h | 1 + tools/testing/selftests/kvm/aarch64/get-reg-list.c | 11 +- 28 files changed, 670 insertions(+), 20 deletions(-) --- base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d change-id: 20231003-arm64-2023-dpisa-2f3d25746474 Best regards, -- Mark Brown <broonie(a)kernel.org>

10 months, 2 weeks

2
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판매 문의 2024

by info＠quicklyemailsend77.com

안녕하세요 스웨덴 스칸디아 엘레바토(Skandia Elevato)에서 온 요아킴 라르손(JOAKIM LARSSON) . 우리는 긴급하게 귀하의 제품을 필요로 하며 가능한 한 빨리 시험 주문을 하고 싶습니다. 온라인으로 제품에 대한 정보를 수집하고 있습니다. 그리고 내 모임에서 나는 우리가 당신의 제품을 주문할 것이라고 생각합니다. 1. 최신 Catalouge를 보낼 수 있습니까? 2. 우리가 주문할 수 있는 최소한은 무엇이고 또한 기간을 보내십시오 및 조건. 3. 우리가 주문하는 경우 지불을 어떻게 해결하기를 원하십니까? 귀하의 회신 대기 중 Mr Joakim larssonv(부사장/영업 관리자) 방문자 주소: Kedumsvägen 14, SE-534 94 Vara, Sweden 배송 주소: Industrivägen, SE-534 94 Vara, Sweden joakimlarson(a)skendiaelevator.com https://skandiaelevator.com

10 months, 3 weeks

1
0
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[PATCH net-next] selftests: avoid using SKIP(exit()) in harness fixure setup

by Jakub Kicinski

selftest harness uses various exit codes to signal test results. Avoid calling exit() directly, otherwise tests may get broken by harness refactoring (like the commit under Fixes). SKIP() will instruct the harness that the test shouldn't run, it used to not be the case, but that has been fixed. So just return, no need to exit. Note that for hmm-tests this actually changes the result from pass to skip. Which seems fair, the test is skipped, after all. Reported-by: Mark Brown <broonie(a)kernel.org> Link: https://lore.kernel.org/all/05f7bf89-04a5-4b65-bf59-c19456aeb1f0@sirena.org… Fixes: a724707976b0 ("selftests: kselftest_harness: use KSFT_* exit codes") Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> --- This needs to go to net-next because that's where the breaking patch was (mis?)-applied. CC: ivan.orlov0322(a)gmail.com CC: perex(a)perex.cz CC: tiwai(a)suse.com CC: broonie(a)kernel.org CC: shuah(a)kernel.org CC: jglisse(a)redhat.com CC: akpm(a)linux-foundation.org CC: keescook(a)chromium.org CC: linux-sound(a)vger.kernel.org CC: linux-kselftest(a)vger.kernel.org CC: linux-mm(a)kvack.org --- tools/testing/selftests/alsa/test-pcmtest-driver.c | 4 ++-- tools/testing/selftests/mm/hmm-tests.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/alsa/test-pcmtest-driver.c b/tools/testing/selftests/alsa/test-pcmtest-driver.c index a52ecd43dbe3..ca81afa4ee90 100644 --- a/tools/testing/selftests/alsa/test-pcmtest-driver.c +++ b/tools/testing/selftests/alsa/test-pcmtest-driver.c @@ -127,11 +127,11 @@ FIXTURE_SETUP(pcmtest) { int err; if (geteuid()) - SKIP(exit(-1), "This test needs root to run!"); + SKIP(return, "This test needs root to run!"); err = read_patterns(); if (err) - SKIP(exit(-1), "Can't read patterns. Probably, module isn't loaded"); + SKIP(return, "Can't read patterns. Probably, module isn't loaded"); card_name = malloc(127); ASSERT_NE(card_name, NULL); diff --git a/tools/testing/selftests/mm/hmm-tests.c b/tools/testing/selftests/mm/hmm-tests.c index 20294553a5dd..d2cfc9b494a0 100644 --- a/tools/testing/selftests/mm/hmm-tests.c +++ b/tools/testing/selftests/mm/hmm-tests.c @@ -138,7 +138,7 @@ FIXTURE_SETUP(hmm) self->fd = hmm_open(variant->device_number); if (self->fd < 0 && hmm_is_coherent_type(variant->device_number)) - SKIP(exit(0), "DEVICE_COHERENT not available"); + SKIP(return, "DEVICE_COHERENT not available"); ASSERT_GE(self->fd, 0); } @@ -149,7 +149,7 @@ FIXTURE_SETUP(hmm2) self->fd0 = hmm_open(variant->device_number0); if (self->fd0 < 0 && hmm_is_coherent_type(variant->device_number0)) - SKIP(exit(0), "DEVICE_COHERENT not available"); + SKIP(return, "DEVICE_COHERENT not available"); ASSERT_GE(self->fd0, 0); self->fd1 = hmm_open(variant->device_number1); ASSERT_GE(self->fd1, 0); -- 2.44.0

10 months, 3 weeks

5
4
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