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Enable these tests to be run on other pfnmap'ed memory like NVIDIA's EGM. Add '--' as a separator to pass in file path. This allows passing of cmd line arguments to kselftest_harness. Use '/dev/mem' as default filename. Existing test passes: pfnmap TAP version 13 1..6 # Starting 6 tests from 1 test cases. # PASSED: 6 / 6 tests passed. # Totals: pass:6 fail:0 xfail:0 xpass:0 skip:0 error:0 Pass params to kselftest_harness: pfnmap -r pfnmap:mremap_fixed TAP version 13 1..1 # Starting 1 tests from 1 test cases. # RUN pfnmap.mremap_fixed ... # OK pfnmap.mremap_fixed ok 1 pfnmap.mremap_fixed # PASSED: 1 / 1 tests passed. # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 Pass non-existent file name as input: pfnmap -- /dev/blah TAP version 13 1..6 # Starting 6 tests from 1 test cases. # RUN pfnmap.madvise_disallowed ... # SKIP Cannot open '/dev/blah' Pass non pfnmap'ed file as input: pfnmap -r pfnmap.madvise_disallowed -- randfile.txt TAP version 13 1..1 # Starting 1 tests from 1 test cases. # RUN pfnmap.madvise_disallowed ... # SKIP Invalid file: 'randfile.txt'. Not pfnmap'ed Link: https://lkml.kernel.org/r/20250805013629.47629-1-sudarsanm@google.com Signed-off-by: Sudarsan Mahendran <sudarsanm@google.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>