From 2d19d369c0c6dade11b8e3448c158655dbaa7b77 Mon Sep 17 00:00:00 2001
From: Benno Lossin <benno.lossin@proton.me>
Date: Sat, 8 Apr 2023 12:25:18 +0000
Subject: rust: enable the `pin_macro` feature

This feature enables the use of the `pin!` macro for the `stack_pin_init!`
macro. This feature is already stabilized in Rust version 1.68.

Signed-off-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Andreas Hindborg <a.hindborg@samsung.com>
Acked-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20230408122429.1103522-2-y86-dev@protonmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
---
 rust/kernel/lib.rs     | 1 +
 scripts/Makefile.build | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs
index 1118cd3e0b5f..518559a0767e 100644
--- a/rust/kernel/lib.rs
+++ b/rust/kernel/lib.rs
@@ -18,6 +18,7 @@
 #![feature(dispatch_from_dyn)]
 #![feature(generic_associated_types)]
 #![feature(new_uninit)]
+#![feature(pin_macro)]
 #![feature(receiver_trait)]
 #![feature(unsize)]
 
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1364e3d905fc..da70f68ba9e4 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,new_uninit
+rust_allowed_features := core_ffi_c,new_uninit,pin_macro
 
 rust_common_cmd = \
 	RUST_MODFILE=$(modfile) $(RUSTC_OR_CLIPPY) $(rust_flags) \
-- 
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