rust: drm: gpuvm: require Send + Sync for the driver's associated data

DriverGpuVm permitted !Send/!Sync associated data on an abstraction whose
handles are shared and dropped across threads: obtain() runs from many
threads and the VA API performs deferred cross-thread drops. That is
unsound.

Require Send + Sync on the trait and its associated data so the GpuVm and
UniqueRefGpuVm handle impls need no per-impl bounds.

Fixes: 82b78182eacf ("rust: drm: add base GPUVM immediate mode abstraction")
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://patch.msgid.link/20260611-gpuvm-sync-send-v4-1-6c7f4ab2778a@google.com
Signed-off-by: Alice Ryhl <aliceryhl@google.com>

0 files changed, 0 insertions, 0 deletions