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6763c8876d
Extend the auxiliary driver sample to demonstrate both access patterns:
- registration_data() with CovariantForLt!(Data<'_>) for the covariant
data type that holds a plain &'bound reference.
- registration_data_with() with ForLt!(MutexData<'_>) for an invariant
data type that wraps a Mutex<&'bound Device>. Since Mutex<T> is
invariant over T, MutexData cannot implement CovariantForLt and must
use the closure-based accessor.
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/20260626183630.2585057-5-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>