rust: clk: add __rust_helper to helpers

This is needed to inline these helpers into Rust code.

Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-4-51da5f454a67@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

rust/helpers/clk.c

@@ -7,60 +7,62 @@
  * CONFIG_HAVE_CLK or CONFIG_HAVE_CLK_PREPARE aren't set.
  */
 #ifndef CONFIG_HAVE_CLK
-struct clk *rust_helper_clk_get(struct device *dev, const char *id)
+__rust_helper struct clk *rust_helper_clk_get(struct device *dev,
+					      const char *id)
 {
 	return clk_get(dev, id);
 }
 
-void rust_helper_clk_put(struct clk *clk)
+__rust_helper void rust_helper_clk_put(struct clk *clk)
 {
 	clk_put(clk);
 }
 
-int rust_helper_clk_enable(struct clk *clk)
+__rust_helper int rust_helper_clk_enable(struct clk *clk)
 {
 	return clk_enable(clk);
 }
 
-void rust_helper_clk_disable(struct clk *clk)
+__rust_helper void rust_helper_clk_disable(struct clk *clk)
 {
 	clk_disable(clk);
 }
 
-unsigned long rust_helper_clk_get_rate(struct clk *clk)
+__rust_helper unsigned long rust_helper_clk_get_rate(struct clk *clk)
 {
 	return clk_get_rate(clk);
 }
 
-int rust_helper_clk_set_rate(struct clk *clk, unsigned long rate)
+__rust_helper int rust_helper_clk_set_rate(struct clk *clk, unsigned long rate)
 {
 	return clk_set_rate(clk, rate);
 }
 #endif
 
 #ifndef CONFIG_HAVE_CLK_PREPARE
-int rust_helper_clk_prepare(struct clk *clk)
+__rust_helper int rust_helper_clk_prepare(struct clk *clk)
 {
 	return clk_prepare(clk);
 }
 
-void rust_helper_clk_unprepare(struct clk *clk)
+__rust_helper void rust_helper_clk_unprepare(struct clk *clk)
 {
 	clk_unprepare(clk);
 }
 #endif
 
-struct clk *rust_helper_clk_get_optional(struct device *dev, const char *id)
+__rust_helper struct clk *rust_helper_clk_get_optional(struct device *dev,
+						       const char *id)
 {
 	return clk_get_optional(dev, id);
 }
 
-int rust_helper_clk_prepare_enable(struct clk *clk)
+__rust_helper int rust_helper_clk_prepare_enable(struct clk *clk)
 {
 	return clk_prepare_enable(clk);
 }
 
-void rust_helper_clk_disable_unprepare(struct clk *clk)
+__rust_helper void rust_helper_clk_disable_unprepare(struct clk *clk)
 {
 	clk_disable_unprepare(clk);
 }