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rust/qdev: Make REALIZE safe

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A safe REALIZE accepts immutable reference.

Since current PL011's realize() only calls a char binding function (
qemu_chr_fe_set_handlers), it is possible to convert mutable reference
(&mut self) to immutable reference (&self), which only needs to convert
the pointers passed to C to mutable pointers.

Thus, make REALIZE accept immutable reference.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250121140457.84631-2-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Zhao Liu 2025-01-21 22:04:56 +08:00 • committed by Paolo Bonzini
parent 8113dbbcda
commit 0f9eb0ff2b
2 changed files with 6 additions and 6 deletions
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2
rust/qemu-api/src/qdev.rs
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@ -23,7 +23,7 @@ pub trait DeviceImpl {
///
/// If not `None`, the parent class's `realize` method is overridden
/// with the function pointed to by `REALIZE`.
const REALIZE: Option<fn(&mut Self)> = None;
const REALIZE: Option<fn(&Self)> = None;
/// If not `None`, the parent class's `reset` method is overridden
/// with the function pointed to by `RESET`.