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Add an `#[optional]` attribute that injects the same default implementation to avoid duplicating this everywhere. As an example, the misc device vtable trait is converted. Signed-off-by: Gary Guo --- Gary Guo (3): rust: macros: vtable: hide generated `HAS_` constants for required methods rust: macros: vtable: add `#[optional]` attribute rust: misc: use `#[optional]` attribute of `#[vtable]` macro rust/kernel/miscdevice.rs | 35 +++++++++++++---------------------- rust/macros/lib.rs | 39 +++++++++++---------------------------- rust/macros/vtable.rs | 43 ++++++++++++++++++++++++++++++++++++++----- 3 files changed, 62 insertions(+), 55 deletions(-) --- base-commit: 6b8c8af514d739d0335f5579b585e02babe8a727 change-id: 20260811-vtable_macro-12a8f557381b Best regards, -- Gary Guo