From bb3b2cfeb206f5b10b859e134651b54120e3f530 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 30 Jun 2026 18:05:56 +0100 Subject: ARM: 9480/1: entry: expand comment in __switch_to As per discussion between the developers in the mail thread linked, expand the comment in __switch_to so that readers of the code understand what is going on. Suggested-by: Mark Rutland Acked-by: Mark Rutland Signed-off-by: Linus Walleij > Signed-off-by: Russell King --- rust/macros/export.rs | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 rust/macros/export.rs (limited to 'rust/macros/export.rs') diff --git a/rust/macros/export.rs b/rust/macros/export.rs new file mode 100644 index 000000000..6d53521f6 --- /dev/null +++ b/rust/macros/export.rs @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0 + +use proc_macro2::TokenStream; +use quote::quote; + +/// Please see [`crate::export`] for documentation. +pub(crate) fn export(f: syn::ItemFn) -> TokenStream { + let name = &f.sig.ident; + + quote! { + // This verifies that the function has the same signature as the declaration generated by + // bindgen. It makes use of the fact that all branches of an if/else must have the same + // type. + const _: () = { + if true { + ::kernel::bindings::#name + } else { + #name + }; + }; + + #[no_mangle] + #f + } +} -- cgit v1.3.1