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Zenghui Yu d43fde5ebf 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>
History 2024-09-12 11:11:38 +02:00
..
crypto/chacha20-s390 tools/testing/crypto: Use vzalloc instead of vmalloc+memset 2022-07-05 14:46:36 +02:00
cxl cxl/region: check interleave capability 2024-07-05 09:34:07 +02:00
fault-injection docs: fault-injection: convert docs to ReST and rename to *.rst 2019-06-14 14:21:07 -06:00
ktest ktest: force $buildonly = 1 for 'make_warnings_file' test type 2024-04-13 13:07:37 +02:00
kunit kunit: tool: fix parsing of test attributes 2024-02-05 20:14:15 +00:00
memblock memblock tests: fix warning ‘struct seq_file’ declared inside parameter list 2023-09-14 10:51:28 +03:00
nvdimm tools/testing/nvdimm: Drop empty platform remove function 2023-06-07 13:30:21 -07:00
radix-tree maple_tree: do not preallocate nodes for slot stores 2024-01-05 15:19:43 +01:00
scatterlist tools/testing/scatterlist: add missing defines 2022-01-30 09:56:58 +02:00
selftests kselftests: dmabuf-heaps: Ensure the driver name is null-terminated 2024-09-12 11:11:38 +02:00
vsock vsock/test: fix SEQPACKET message bounds test 2023-12-03 07:33:05 +01:00