[PATCH v4 12/25] tools/testing/vma: test that legacy flag helpers work correctly
"Lorenzo Stoakes (Oracle)" <[email protected]>
| Newsgroups | gmane.linux.uml.devel,gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.mips,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.file-systems |
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| Message-ID | <3374e50053adb65818fde948ae3488e1e29ae8b1.1774034900.git.ljs@kernel.org> |
Update the existing compare_legacy_flags() predicate function to assert that legacy_to_vma_flags() and vma_flags_to_legacy() behave as expected. Signed-off-by: Lorenzo Stoakes (Oracle) <[email protected]> --- tools/testing/vma/tests/vma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/testing/vma/tests/vma.c b/tools/testing/vma/tests/vma.c index 98e465fb1bf2..1fae25170ff7 100644 --- a/tools/testing/vma/tests/vma.c +++ b/tools/testing/vma/tests/vma.c @@ -5,6 +5,7 @@ static bool compare_legacy_flags(vm_flags_t legacy_flags, vma_flags_t flags) const unsigned long legacy_val = legacy_flags; /* The lower word should contain the precise same value. */ const unsigned long flags_lower = flags.__vma_flags[0]; + vma_flags_t converted_flags; #if NUM_VMA_FLAG_BITS > BITS_PER_LONG int i; @@ -17,6 +18,11 @@ static bool compare_legacy_flags(vm_flags_t legacy_flags, vma_flags_t flags) static_assert(sizeof(legacy_flags) == sizeof(unsigned long)); + /* Assert that legacy flag helpers work correctly. */ + converted_flags = legacy_to_vma_flags(legacy_flags); + ASSERT_FLAGS_SAME_MASK(&converted_flags, flags); + ASSERT_EQ(vma_flags_to_legacy(flags), legacy_flags); + return legacy_val == flags_lower; } -- 2.53.0