rust: macros: take string literals in `module!`

Instead of taking binary string literals, take string ones instead,
making it easier for users to define a module, i.e. instead of
calling `module!` like:

    module! {
        ...
        name: b"rust_minimal",
        ...
    }

now it is called as:

    module! {
        ...
        name: "rust_minimal",
        ...
    }

Module names, aliases and license strings are restricted to
ASCII only. However, the author and the description allows UTF-8.

For simplicity (avoid parsing), escape sequences and raw string
literals are not yet handled.

Link: https://github.com/Rust-for-Linux/linux/issues/252
Link: https://lore.kernel.org/lkml/YukvvPOOu8uZl7+n@yadro.com/
Signed-off-by: Gary Guo <gary@garyguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/rust/macros/module.rs b/rust/macros/module.rs
index 186a5b8be23c..a7e363c2b044 100644
--- a/rust/macros/module.rs
+++ b/rust/macros/module.rs
@@ -108,11 +108,11 @@ impl ModuleInfo {
 
             match key.as_str() {
                 "type" => info.type_ = expect_ident(it),
-                "name" => info.name = expect_byte_string(it),
-                "author" => info.author = Some(expect_byte_string(it)),
-                "description" => info.description = Some(expect_byte_string(it)),
-                "license" => info.license = expect_byte_string(it),
-                "alias" => info.alias = Some(expect_byte_string(it)),
+                "name" => info.name = expect_string_ascii(it),
+                "author" => info.author = Some(expect_string(it)),
+                "description" => info.description = Some(expect_string(it)),
+                "license" => info.license = expect_string_ascii(it),
+                "alias" => info.alias = Some(expect_string_ascii(it)),
                 _ => panic!(
                     "Unknown key \"{}\". Valid keys are: {:?}.",
                     key, EXPECTED_KEYS