On Mon, Jun 10, 2024 at 02:01:04PM +0000, Alice Ryhl wrote: > Add just enough support for static key so that we can use it from > tracepoints. Tracepoints rely on `static_key_false` even though it is > deprecated, so we add the same functionality to Rust. > > It is not possible to use the existing C implementation of > arch_static_branch because it passes the argument `key` to inline > assembly as an 'i' parameter, so any attempt to add a C helper for this > function will fail to compile because the value of `key` must be known > at compile-time. > > Signed-off-by: Alice Ryhl <alicer...@google.com>
> +#[cfg(target_arch = "x86_64")]
> +#[cfg(target_arch = "aarch64")]
This patch breaks the build on riscv (and I assume loongarch):
error[E0432]: unresolved import `_static_key_false`
--> /stuff/linux/rust/kernel/static_key.rs:87:10
|
87 | pub use {_static_key_false, static_key_false};
| ^^^^^^^^^^^^^^^^^ no external crate `_static_key_false`
Cheers,
Conor.
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