miscdevice: rust: use build_error! macro instead of function

The function called build_error is an implementation detail of the macro
of the same name. Thus, update miscdevice to use the macro rather than
the function. See [1] for more information on this.

These use the macro with the kernel:: prefix as it has not yet been
added to the prelude.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/20250110162828.38614c1b@canb.auug.org.au
Link: https://lore.kernel.org/all/20241123222849.350287-2-ojeda@kernel.org/
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250110101459.536726-1-aliceryhl@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/rust/kernel/miscdevice.rs b/rust/kernel/miscdevice.rs
index ebc82e7dfc802986112b7ba0606dcce9b89ba11b..dfb363630c70b7187cae91f692d38bcf42d56a0a 100644 (file)
--- a/rust/kernel/miscdevice.rs
+++ b/rust/kernel/miscdevice.rs
@@ -134,7 +134,7 @@ pub trait MiscDevice: Sized {
         _cmd: u32,
         _arg: usize,
     ) -> Result<isize> {
-        kernel::build_error(VTABLE_DEFAULT_ERROR)
+        kernel::build_error!(VTABLE_DEFAULT_ERROR)
     }
 
     /// Handler for ioctls.
@@ -151,7 +151,7 @@ pub trait MiscDevice: Sized {
         _cmd: u32,
         _arg: usize,
     ) -> Result<isize> {
-        kernel::build_error(VTABLE_DEFAULT_ERROR)
+        kernel::build_error!(VTABLE_DEFAULT_ERROR)
     }
 
     /// Show info for this fd.
@@ -160,7 +160,7 @@ pub trait MiscDevice: Sized {
         _m: &SeqFile,
         _file: &File,
     ) {
-        kernel::build_error(VTABLE_DEFAULT_ERROR)
+        kernel::build_error!(VTABLE_DEFAULT_ERROR)
     }
 }