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fde8353121
pfnmap currently checks the target file in FIXTURE_SETUP(pfnmap), meaning once for every test, and skips the test if any check fails. The target file is the same for every test so this is a little overkill. More importantly, this approach means that the whole suite will report PASS even if all the tests are skipped because kernel configuration (e.g. CONFIG_STRICT_DEVMEM=y) prevented /dev/mem from being mapped, for instance. Let's ensure that KSFT_SKIP is returned as exit code if any check fails by performing the checks in pfnmap_init(), run once. That function also takes care of finding the offset of the pages to be mapped and saves it in a global. The file is now opened only once and the fd saved in a global, but it is still mapped/unmapped for every test, as some of them modify the mapping. Link: https://lkml.kernel.org/r/20260122170224.4056513-10-kevin.brodsky@arm.com Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com> Acked-by: David Hildenbrand (Red Hat) <david@kernel.org> Cc: Dev Jain <dev.jain@arm.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Mark Brown <broonie@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Usama Anjum <Usama.Anjum@arm.com> Cc: wang lian <lianux.mm@gmail.com> Cc: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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