From: Asahi Lina Date: Fri, 24 Feb 2023 08:09:47 +0000 (+0900) Subject: rust: Enable the new_uninit feature for kernel and driver crates X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3c01a424a37fe625052c68c8620f6aa701f77769;p=linux.git rust: Enable the new_uninit feature for kernel and driver crates The unstable new_uninit feature enables various library APIs to create uninitialized containers, such as `Box::assume_init()`. This is necessary to build abstractions that directly initialize memory at the target location, instead of doing copies through the stack. Will be used by the DRM scheduler abstraction in the kernel crate, and by field-wise initialization (e.g. using `place!()` or a future replacement macro which may itself live in `kernel`) in driver crates. Link: https://github.com/Rust-for-Linux/linux/issues/879 Link: https://github.com/Rust-for-Linux/linux/issues/2 Link: https://github.com/rust-lang/rust/issues/63291 Signed-off-by: Asahi Lina Reviewed-by: Martin Rodriguez Reboredo Reviewed-by: Gary Guo Reviewed-by: Andreas Hindborg Reviewed-by: Vincenzo Palazzo Link: https://lore.kernel.org/r/20230224-rust-new_uninit-v1-1-c951443d9e26@asahilina.net [ Reworded to use `Link` tags. ] Signed-off-by: Miguel Ojeda --- diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs index 223564f9f0cc3..1118cd3e0b5f5 100644 --- a/rust/kernel/lib.rs +++ b/rust/kernel/lib.rs @@ -17,6 +17,7 @@ #![feature(core_ffi_c)] #![feature(dispatch_from_dyn)] #![feature(generic_associated_types)] +#![feature(new_uninit)] #![feature(receiver_trait)] #![feature(unsize)] diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 76323201232a5..1364e3d905fc6 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -277,7 +277,7 @@ $(obj)/%.lst: $(src)/%.c FORCE # Compile Rust sources (.rs) # --------------------------------------------------------------------------- -rust_allowed_features := core_ffi_c +rust_allowed_features := core_ffi_c,new_uninit rust_common_cmd = \ RUST_MODFILE=$(modfile) $(RUSTC_OR_CLIPPY) $(rust_flags) \