linux/tools/testing
Zenghui Yu 18e65173fe kselftests: dmabuf-heaps: Ensure the driver name is null-terminated
[ Upstream commit 291e4baf70 ]

Even if a vgem device is configured in, we will skip the import_vgem_fd()
test almost every time.

  TAP version 13
  1..11
  # Testing heap: system
  # =======================================
  # Testing allocation and importing:
  ok 1 # SKIP Could not open vgem -1

The problem is that we use the DRM_IOCTL_VERSION ioctl to query the driver
version information but leave the name field a non-null-terminated string.
Terminate it properly to actually test against the vgem device.

While at it, let's check the length of the driver name is exactly 4 bytes
and return early otherwise (in case there is a name like "vgemfoo" that
gets converted to "vgem\0" unexpectedly).

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240729024604.2046-1-yuzenghui@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-12 11:07:49 +02:00
..
fault-injection
ktest ktest: force $buildonly = 1 for 'make_warnings_file' test type 2024-04-13 13:01:46 +02:00
kunit kunit: tool: Import missing importlib.abc 2022-02-23 12:03:04 +01:00
nvdimm memremap: remove support for external pgmap refcounts 2022-08-17 14:23:43 +02:00
radix-tree radix tree test suite: fix incorrect allocation size for pthreads 2023-08-16 18:21:58 +02:00
scatterlist Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
selftests kselftests: dmabuf-heaps: Ensure the driver name is null-terminated 2024-09-12 11:07:49 +02:00
vsock vsock_diag_test: remove free_sock_stat() call in test_no_sockets 2021-10-15 17:21:34 -07:00