github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 01:53:29 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

iommufd/selftest: Add asserts testing global mfd

Browse Source 
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: 0bcceb1f51 ("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>
This commit is contained in:
Nicolin Chen 2025-06-24 11:00:47 -07:00 committed by Jason Gunthorpe
parent 4b75e3babb
commit a9bf67ee17
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/testing/selftests/iommu/iommufd.c
View File

@ -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)