diff options
| author | Nicolin Chen <nicolinc@nvidia.com> | 2025-06-24 11:00:47 -0700 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2025-06-24 15:45:12 -0300 |
| commit | a9bf67ee170514b17541038c60bb94cb2cf5732f (patch) | |
| tree | eb07f6d3c8afc8fc8b6ac5c051b2272f9a554a5d /tools/testing | |
| parent | iommufd/selftest: Add missing close(mfd) in memfd_mmap() (diff) | |
| download | linux-a9bf67ee170514b17541038c60bb94cb2cf5732f.tar.gz linux-a9bf67ee170514b17541038c60bb94cb2cf5732f.zip | |
iommufd/selftest: Add asserts testing global mfd
The mfd and mfd_buffer will be used in the tests directly without an extra
check. Test them in setup_sizes() to ensure they are safe to use.
Fixes: 0bcceb1f51c7 ("iommufd: Selftest coverage for IOMMU_IOAS_MAP_FILE")
Link: https://patch.msgid.link/r/94bdc11d2b6d5db337b1361c5e5fce0ed494bb40.1750787928.git.nicolinc@nvidia.com
Cc: stable@vger.kernel.org
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/iommu/iommufd.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c index e7eb11a94034..e61218c0537f 100644 --- a/tools/testing/selftests/iommu/iommufd.c +++ b/tools/testing/selftests/iommu/iommufd.c @@ -54,6 +54,8 @@ static __attribute__((constructor)) void setup_sizes(void) mfd_buffer = memfd_mmap(BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, &mfd); + assert(mfd_buffer != MAP_FAILED); + assert(mfd > 0); } FIXTURE(iommufd) |