Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted

Pull tracing fixes from Steven Rostedt:

 - Fix error output of boot instance creation failure

   Currently if a boot instance creation fails, instead of printing out
   the name of the instance that failed, it prints "(null)". That is
   because it prints "cur_str" that had already been processed by
   strsep(). Print the saved name instead.

   While at it, print the error code of the failure.

 - Fix use-after-free for same named historgrams

   Histograms can be named so that they can be used in multiple events.
   But if the named histogram has a variable attached, the second event
   that uses the named histogram which duplicates it and needs to free
   the original after duplication leaves the old variable in place and
   still visible. If another histogram uses than variable, it will use
   the stale one which will try to reference the freed duplicate
   histogram and crash the kernel.

   Free the duplicate variables along with the duplicated histogram
   data.

 - Check return value of kthread_run() in event self test

   The events self tests uses a kthread for testing but does not check
   if it succeeded in creating a kthread. If the kthread creation were
   to fail, the code will still try to call kthread_stop() on the error
   returned.

 - Fix race between reading trace_pipe and updating subbuffer size

   If a user is reading the trace_pipe file at the same time they update
   the ring buffer sub-buffer size, can cause the trace_pipe read to
   read stale data. Add trace_access_lock() around updating the ring
   buffer sub-buffer size.

 - Fix eventfs_inode on failure path in creation of the events directory

   In the creation of the "events" directory, if after allocating the
   eventfs_inode a failure is detected, it calls cleanup_ei() which
   calls free_ei(). The free_ei() will test if eventfs_inode being freed
   has no children. It is a bug if it does. But on the failure case of
   the creation of the "events" directory, the children lists have not
   yet been initialized and the free will trigger a warning because
   list_empty() on an uninitialized list returns false.

   Move the initialization into init_ei() where it makes more sense and
   makes sure that a created eventfs_inode has its lists initialized
   upon creation.

 - Check return value of kthread_run() in ftrace direct sample code

   The sample code that shows how to use the ftrace direct calls does
   not test the return of kthread_run() to see if it succeeds. Return a
   failure if the kthread_run() doesn't succeed.

 - Clear user events state on fork in case of alloc failure

   On fork, the child gets a pointer to the parent's user events state.
   It makes a copy of it then updates the child's pointer to it. But if
   the allocation fails, the duplication function leaves the child with
   a pointer to its parent's descriptor. When the child cleans up its
   data, it will free the parent's descriptor while the parent is still
   using it.

   In the duplication function, set the child's user_event_mm to NULL
   before testing if the allocation succeeded, and when it exits it will
   not free the parent's descriptor.

 - Fix retry exhaustion in simple ring buffer reader swap

   simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
   post-decrements it only after a failed link replacement. On the final
   attempt, a successful replacement leaves retry at zero, while a
   failed replacement leaves it at -1.

   But the check for success expects the retry value to be non-zero and
   exits with an error on zero. This is the opposite result. Fix it.

 - Fail nicely when the remote swap_reader_page() returns an error

   Currently, if the swap_reader_page() of a remote buffer fails, it
   triggers a WARN_ON_ONCE() and continues normally. Instead, have it
   exit with an error and a pr_warn() print instead of a full WARNING.

* tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Stop remote reader update when page swap fails
  tracing: Fix retry exhaustion in simple ring buffer reader swap
  tracing/user_events: Clear copied tracing state before fork duplication
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify
  eventfs: Initialize ei->children and ei->list in init_ei()
  tracing: Fix use-after-free in trace_pipe read on sub-buffer order change
  tracing: Fix crash passing ERR_PTR to kthread_stop()
  tracing: Fix use-after-free with same-name named triggers
  tracing: Fix logged instance name on creation failure

1 files changed, 654 insertions, 0 deletions

diff --git a/rust/macros/module.rs b/rust/macros/module.rs
new file mode 100644
index 000000000..bc7027f8d
--- /dev/null
+++ b/rust/macros/module.rs
@@ -0,0 +1,654 @@
+// SPDX-License-Identifier: GPL-2.0
+
+use std::ffi::CString;
+
+use proc_macro2::{
+    Literal,
+    TokenStream, //
+};
+use quote::{
+    format_ident,
+    quote, //
+};
+use syn::{
+    braced,
+    bracketed,
+    ext::IdentExt,
+    parse::{
+        Parse,
+        ParseStream, //
+    },
+    parse_quote,
+    punctuated::Punctuated,
+    Error,
+    Expr,
+    Ident,
+    LitStr,
+    Path,
+    Result,
+    Token,
+    Type, //
+};
+
+use crate::helpers::*;
+
+struct ModInfoBuilder<'a> {
+    module: &'a str,
+    counter: usize,
+    ts: TokenStream,
+    param_ts: TokenStream,
+}
+
+impl<'a> ModInfoBuilder<'a> {
+    fn new(module: &'a str) -> Self {
+        ModInfoBuilder {
+            module,
+            counter: 0,
+            ts: TokenStream::new(),
+            param_ts: TokenStream::new(),
+        }
+    }
+
+    fn emit_base(&mut self, field: &str, content: &str, builtin: bool, param: bool) {
+        let string = if builtin {
+            // Built-in modules prefix their modinfo strings by `module.`.
+            format!("{module}.{field}={content}\0", module = self.module)
+        } else {
+            // Loadable modules' modinfo strings go as-is.
+            format!("{field}={content}\0")
+        };
+        let length = string.len();
+        let string = Literal::byte_string(string.as_bytes());
+        let cfg = if builtin {
+            quote!(#[cfg(not(MODULE))])
+        } else {
+            quote!(#[cfg(MODULE)])
+        };
+
+        let counter = format_ident!(
+            "__{module}_{counter}",
+            module = self.module.to_uppercase(),
+            counter = self.counter
+        );
+        let item = quote! {
+            #cfg
+            #[cfg_attr(not(target_os = "macos"), link_section = ".modinfo")]
+            #[used(compiler)]
+            pub static #counter: [u8; #length] = *#string;
+        };
+
+        if param {
+            self.param_ts.extend(item);
+        } else {
+            self.ts.extend(item);
+        }
+
+        self.counter += 1;
+    }
+
+    fn emit_only_builtin(&mut self, field: &str, content: &str, param: bool) {
+        self.emit_base(field, content, true, param)
+    }
+
+    fn emit_only_loadable(&mut self, field: &str, content: &str, param: bool) {
+        self.emit_base(field, content, false, param)
+    }
+
+    fn emit(&mut self, field: &str, content: &str) {
+        self.emit_internal(field, content, false);
+    }
+
+    fn emit_internal(&mut self, field: &str, content: &str, param: bool) {
+        self.emit_only_builtin(field, content, param);
+        self.emit_only_loadable(field, content, param);
+    }
+
+    fn emit_param(&mut self, field: &str, param: &str, content: &str) {
+        let content = format!("{param}:{content}");
+        self.emit_internal(field, &content, true);
+    }
+
+    fn emit_params(&mut self, info: &ModuleInfo) {
+        let Some(params) = &info.params else {
+            return;
+        };
+
+        for param in params {
+            let param_name_str = param.name.to_string();
+            let param_type_str = param.ptype.to_string();
+
+            let ops = param_ops_path(&param_type_str);
+
+            // Note: The spelling of these fields is dictated by the user space
+            // tool `modinfo`.
+            self.emit_param("parmtype", &param_name_str, &param_type_str);
+            self.emit_param("parm", &param_name_str, &param.description.value());
+
+            let static_name = format_ident!("__{}_{}_struct", self.module, param.name);
+            let param_name_cstr =
+                CString::new(param_name_str).expect("name contains NUL-terminator");
+            let param_name_cstr_with_module =
+                CString::new(format!("{}.{}", self.module, param.name))
+                    .expect("name contains NUL-terminator");
+
+            let param_name = &param.name;
+            let param_type = &param.ptype;
+            let param_default = &param.default;
+
+            self.param_ts.extend(quote! {
+                #[allow(non_upper_case_globals)]
+                pub(crate) static #param_name:
+                    ::kernel::module_param::ModuleParamAccess<#param_type> =
+                        ::kernel::module_param::ModuleParamAccess::new(#param_default);
+
+                const _: () = {
+                    #[allow(non_upper_case_globals)]
+                    #[link_section = "__param"]
+                    #[used(compiler)]
+                    static #static_name:
+                        ::kernel::module_param::KernelParam =
+                        ::kernel::module_param::KernelParam::new(
+                            ::kernel::bindings::kernel_param {
+                                name: kernel::str::as_char_ptr_in_const_context(
+                                    if ::core::cfg!(MODULE) {
+                                        #param_name_cstr
+                                    } else {
+                                        #param_name_cstr_with_module
+                                    }
+                                ),
+                                // SAFETY: `__this_module` is constructed by the kernel at load
+                                // time and will not be freed until the module is unloaded.
+                                #[cfg(MODULE)]
+                                mod_: unsafe {
+                                    core::ptr::from_ref(&::kernel::bindings::__this_module)
+                                        .cast_mut()
+                                },
+                                #[cfg(not(MODULE))]
+                                mod_: ::core::ptr::null_mut(),
+                                ops: core::ptr::from_ref(&#ops),
+                                perm: 0, // Will not appear in sysfs
+                                level: -1,
+                                flags: 0,
+                                __bindgen_anon_1: ::kernel::bindings::kernel_param__bindgen_ty_1 {
+                                    arg: #param_name.as_void_ptr()
+                                },
+                            }
+                        );
+                };
+            });
+        }
+    }
+}
+
+fn param_ops_path(param_type: &str) -> Path {
+    match param_type {
+        "i8" => parse_quote!(::kernel::module_param::PARAM_OPS_I8),
+        "u8" => parse_quote!(::kernel::module_param::PARAM_OPS_U8),
+        "i16" => parse_quote!(::kernel::module_param::PARAM_OPS_I16),
+        "u16" => parse_quote!(::kernel::module_param::PARAM_OPS_U16),
+        "i32" => parse_quote!(::kernel::module_param::PARAM_OPS_I32),
+        "u32" => parse_quote!(::kernel::module_param::PARAM_OPS_U32),
+        "i64" => parse_quote!(::kernel::module_param::PARAM_OPS_I64),
+        "u64" => parse_quote!(::kernel::module_param::PARAM_OPS_U64),
+        "isize" => parse_quote!(::kernel::module_param::PARAM_OPS_ISIZE),
+        "usize" => parse_quote!(::kernel::module_param::PARAM_OPS_USIZE),
+        "bool" => parse_quote!(::kernel::module_param::PARAM_OPS_BOOL),
+        t => panic!("Unsupported parameter type {}", t),
+    }
+}
+
+/// Parse fields that are required to use a specific order.
+///
+/// As fields must follow a specific order, we *could* just parse fields one by one by peeking.
+/// However the error message generated when implementing that way is not very friendly.
+///
+/// So instead we parse fields in an arbitrary order, but only enforce the ordering after parsing,
+/// and if the wrong order is used, the proper order is communicated to the user with error message.
+///
+/// Usage looks like this:
+/// ```ignore
+/// parse_ordered_fields! {
+///     from input;
+///
+///     // This will extract "foo: <field>" into a variable named "foo".
+///     // The variable will have type `Option<_>`.
+///     foo => <expression that parses the field>,
+///
+///     // If you need the variable name to be different than the key name.
+///     // This extracts "baz: <field>" into a variable named "bar".
+///     // You might want this if "baz" is a keyword.
+///     baz as bar => <expression that parse the field>,
+///
+///     // You can mark a key as required, and the variable will no longer be `Option`.
+///     // foobar will be of type `Expr` instead of `Option<Expr>`.
+///     foobar [required] => input.parse::<Expr>()?,
+/// }
+/// ```
+macro_rules! parse_ordered_fields {
+    (@gen
+        [$input:expr]
+        [$([$name:ident; $key:ident; $parser:expr])*]
+        [$([$req_name:ident; $req_key:ident])*]
+    ) => {
+        $(let mut $name = None;)*
+
+        const EXPECTED_KEYS: &[&str] = &[$(stringify!($key),)*];
+        const REQUIRED_KEYS: &[&str] = &[$(stringify!($req_key),)*];
+
+        let span = $input.span();
+        let mut seen_keys = Vec::new();
+
+        while !$input.is_empty() {
+            let key = $input.call(Ident::parse_any)?;
+
+            if seen_keys.contains(&key) {
+                Err(Error::new_spanned(
+                    &key,
+                    format!(r#"duplicated key "{key}". Keys can only be specified once."#),
+                ))?
+            }
+
+            $input.parse::<Token![:]>()?;
+
+            match &*key.to_string() {
+                $(
+                    stringify!($key) => $name = Some($parser),
+                )*
+                _ => {
+                    Err(Error::new_spanned(
+                        &key,
+                        format!(r#"unknown key "{key}". Valid keys are: {EXPECTED_KEYS:?}."#),
+                    ))?
+                }
+            }
+
+            $input.parse::<Token![,]>()?;
+            seen_keys.push(key);
+        }
+
+        for key in REQUIRED_KEYS {
+            if !seen_keys.iter().any(|e| e == key) {
+                Err(Error::new(span, format!(r#"missing required key "{key}""#)))?
+            }
+        }
+
+        let mut ordered_keys: Vec<&str> = Vec::new();
+        for key in EXPECTED_KEYS {
+            if seen_keys.iter().any(|e| e == key) {
+                ordered_keys.push(key);
+            }
+        }
+
+        if seen_keys != ordered_keys {
+            Err(Error::new(
+                span,
+                format!(r#"keys are not ordered as expected. Order them like: {ordered_keys:?}."#),
+            ))?
+        }
+
+        $(let $req_name = $req_name.expect("required field");)*
+    };
+
+    // Handle required fields.
+    (@gen
+        [$input:expr] [$($tok:tt)*] [$($req:tt)*]
+        $key:ident as $name:ident [required] => $parser:expr,
+        $($rest:tt)*
+    ) => {
+        parse_ordered_fields!(
+            @gen [$input] [$($tok)* [$name; $key; $parser]] [$($req)* [$name; $key]] $($rest)*
+        )
+    };
+    (@gen
+        [$input:expr] [$($tok:tt)*] [$($req:tt)*]
+        $name:ident [required] => $parser:expr,
+        $($rest:tt)*
+    ) => {
+        parse_ordered_fields!(
+            @gen [$input] [$($tok)* [$name; $name; $parser]] [$($req)* [$name; $name]] $($rest)*
+        )
+    };
+
+    // Handle optional fields.
+    (@gen
+        [$input:expr] [$($tok:tt)*] [$($req:tt)*]
+        $key:ident as $name:ident => $parser:expr,
+        $($rest:tt)*
+    ) => {
+        parse_ordered_fields!(
+            @gen [$input] [$($tok)* [$name; $key; $parser]] [$($req)*] $($rest)*
+        )
+    };
+    (@gen
+        [$input:expr] [$($tok:tt)*] [$($req:tt)*]
+        $name:ident => $parser:expr,
+        $($rest:tt)*
+    ) => {
+        parse_ordered_fields!(
+            @gen [$input] [$($tok)* [$name; $name; $parser]] [$($req)*] $($rest)*
+        )
+    };
+
+    (from $input:expr; $($tok:tt)*) => {
+        parse_ordered_fields!(@gen [$input] [] [] $($tok)*)
+    }
+}
+
+struct Parameter {
+    name: Ident,
+    ptype: Ident,
+    default: Expr,
+    description: LitStr,
+}
+
+impl Parse for Parameter {
+    fn parse(input: ParseStream<'_>) -> Result<Self> {
+        let name = input.parse()?;
+        input.parse::<Token![:]>()?;
+        let ptype = input.parse()?;
+
+        let fields;
+        braced!(fields in input);
+
+        parse_ordered_fields! {
+            from fields;
+            default [required] => fields.parse()?,
+            description [required] => fields.parse()?,
+        }
+
+        Ok(Self {
+            name,
+            ptype,
+            default,
+            description,
+        })
+    }
+}
+
+pub(crate) struct ModuleInfo {
+    type_: Type,
+    license: AsciiLitStr,
+    name: AsciiLitStr,
+    authors: Option<Punctuated<AsciiLitStr, Token![,]>>,
+    description: Option<LitStr>,
+    alias: Option<Punctuated<AsciiLitStr, Token![,]>>,
+    firmware: Option<Punctuated<AsciiLitStr, Token![,]>>,
+    imports_ns: Option<Punctuated<AsciiLitStr, Token![,]>>,
+    params: Option<Punctuated<Parameter, Token![,]>>,
+}
+
+impl Parse for ModuleInfo {
+    fn parse(input: ParseStream<'_>) -> Result<Self> {
+        parse_ordered_fields!(
+            from input;
+            type as type_ [required] => input.parse()?,
+            name [required] => input.parse()?,
+            authors => {
+                let list;
+                bracketed!(list in input);
+                Punctuated::parse_terminated(&list)?
+            },
+            description => input.parse()?,
+            license [required] => input.parse()?,
+            alias => {
+                let list;
+                bracketed!(list in input);
+                Punctuated::parse_terminated(&list)?
+            },
+            firmware => {
+                let list;
+                bracketed!(list in input);
+                Punctuated::parse_terminated(&list)?
+            },
+            imports_ns => {
+                let list;
+                bracketed!(list in input);
+                Punctuated::parse_terminated(&list)?
+            },
+            params => {
+                let list;
+                braced!(list in input);
+                Punctuated::parse_terminated(&list)?
+            },
+        );
+
+        Ok(ModuleInfo {
+            type_,
+            license,
+            name,
+            authors,
+            description,
+            alias,
+            firmware,
+            imports_ns,
+            params,
+        })
+    }
+}
+
+pub(crate) fn module(info: ModuleInfo) -> Result<TokenStream> {
+    let ModuleInfo {
+        type_,
+        license,
+        name,
+        authors,
+        description,
+        alias,
+        firmware,
+        imports_ns,
+        params: _,
+    } = &info;
+
+    // Rust does not allow hyphens in identifiers, use underscore instead.
+    let ident = name.value().replace('-', "_");
+    let mut modinfo = ModInfoBuilder::new(ident.as_ref());
+    if let Some(authors) = authors {
+        for author in authors {
+            modinfo.emit("author", &author.value());
+        }
+    }
+    if let Some(description) = description {
+        modinfo.emit("description", &description.value());
+    }
+    modinfo.emit("license", &license.value());
+    if let Some(aliases) = alias {
+        for alias in aliases {
+            modinfo.emit("alias", &alias.value());
+        }
+    }
+    if let Some(firmware) = firmware {
+        for fw in firmware {
+            modinfo.emit("firmware", &fw.value());
+        }
+    }
+    if let Some(imports) = imports_ns {
+        for ns in imports {
+            modinfo.emit("import_ns", &ns.value());
+        }
+    }
+
+    // Built-in modules also export the `file` modinfo string.
+    let file =
+        std::env::var("RUST_MODFILE").expect("Unable to fetch RUST_MODFILE environmental variable");
+    modinfo.emit_only_builtin("file", &file, false);
+
+    modinfo.emit_params(&info);
+
+    let modinfo_ts = modinfo.ts;
+    let params_ts = modinfo.param_ts;
+
+    let ident_init = format_ident!("__{ident}_init");
+    let ident_exit = format_ident!("__{ident}_exit");
+    let ident_initcall = format_ident!("__{ident}_initcall");
+    let initcall_section = ".initcall6.init";
+
+    let global_asm = format!(
+        r#".section "{initcall_section}", "a"
+        __{ident}_initcall:
+            .long   __{ident}_init - .
+            .previous
+        "#
+    );
+
+    let name_cstr = CString::new(name.value()).expect("name contains NUL-terminator");
+
+    Ok(quote! {
+        /// The module name.
+        ///
+        /// Used by the printing macros, e.g. [`info!`].
+        const __LOG_PREFIX: &[u8] = #name_cstr.to_bytes_with_nul();
+
+        /// The `LocalModule` type is the type of the module created by `module!`,
+        /// `module_pci_driver!`, `module_platform_driver!`, etc.
+        type LocalModule = #type_;
+
+        impl ::kernel::ModuleMetadata for #type_ {
+            const NAME: &'static ::kernel::str::CStr = #name_cstr;
+
+            #[cfg(MODULE)]
+            const THIS_MODULE: ::kernel::ThisModule = {
+                extern "C" {
+                    static __this_module: ::kernel::types::Opaque<::kernel::bindings::module>;
+                }
+
+                // SAFETY: `__this_module` is constructed by the kernel at load time
+                // and lives until the module is unloaded.
+                unsafe { ::kernel::ThisModule::from_ptr(__this_module.get()) }
+            };
+
+            #[cfg(not(MODULE))]
+            const THIS_MODULE: ::kernel::ThisModule = unsafe {
+                ::kernel::ThisModule::from_ptr(::core::ptr::null_mut())
+            };
+        }
+
+        // Double nested modules, since then nobody can access the public items inside.
+        #[doc(hidden)]
+        mod __module_init {
+            mod __module_init {
+                use pin_init::PinInit;
+
+                /// The "Rust loadable module" mark.
+                //
+                // This may be best done another way later on, e.g. as a new modinfo
+                // key or a new section. For the moment, keep it simple.
+                #[cfg(MODULE)]
+                #[used(compiler)]
+                static __IS_RUST_MODULE: () = ();
+
+                static mut __MOD: ::core::mem::MaybeUninit<super::super::LocalModule> =
+                    ::core::mem::MaybeUninit::uninit();
+
+                // Loadable modules need to export the `{init,cleanup}_module` identifiers.
+                /// # Safety
+                ///
+                /// This function must not be called after module initialization, because it may be
+                /// freed after that completes.
+                #[cfg(MODULE)]
+                #[no_mangle]
+                #[link_section = ".init.text"]
+                pub unsafe extern "C" fn init_module() -> ::kernel::ffi::c_int {
+                    // SAFETY: This function is inaccessible to the outside due to the double
+                    // module wrapping it. It is called exactly once by the C side via its
+                    // unique name.
+                    unsafe { __init() }
+                }
+
+                #[cfg(MODULE)]
+                #[used(compiler)]
+                #[link_section = ".init.data"]
+                static __UNIQUE_ID___addressable_init_module: unsafe extern "C" fn() -> i32 =
+                    init_module;
+
+                #[cfg(MODULE)]
+                #[no_mangle]
+                #[link_section = ".exit.text"]
+                pub extern "C" fn cleanup_module() {
+                    // SAFETY:
+                    // - This function is inaccessible to the outside due to the double
+                    //   module wrapping it. It is called exactly once by the C side via its
+                    //   unique name,
+                    // - furthermore it is only called after `init_module` has returned `0`
+                    //   (which delegates to `__init`).
+                    unsafe { __exit() }
+                }
+
+                #[cfg(MODULE)]
+                #[used(compiler)]
+                #[link_section = ".exit.data"]
+                static __UNIQUE_ID___addressable_cleanup_module: extern "C" fn() = cleanup_module;
+
+                // Built-in modules are initialized through an initcall pointer
+                // and the identifiers need to be unique.
+                #[cfg(not(MODULE))]
+                #[cfg(not(CONFIG_HAVE_ARCH_PREL32_RELOCATIONS))]
+                #[link_section = #initcall_section]
+                #[used(compiler)]
+                pub static #ident_initcall: extern "C" fn() ->
+                    ::kernel::ffi::c_int = #ident_init;
+
+                #[cfg(not(MODULE))]
+                #[cfg(CONFIG_HAVE_ARCH_PREL32_RELOCATIONS)]
+                ::core::arch::global_asm!(#global_asm);
+
+                #[cfg(not(MODULE))]
+                #[no_mangle]
+                pub extern "C" fn #ident_init() -> ::kernel::ffi::c_int {
+                    // SAFETY: This function is inaccessible to the outside due to the double
+                    // module wrapping it. It is called exactly once by the C side via its
+                    // placement above in the initcall section.
+                    unsafe { __init() }
+                }
+
+                #[cfg(not(MODULE))]
+                #[no_mangle]
+                pub extern "C" fn #ident_exit() {
+                    // SAFETY:
+                    // - This function is inaccessible to the outside due to the double
+                    //   module wrapping it. It is called exactly once by the C side via its
+                    //   unique name,
+                    // - furthermore it is only called after `#ident_init` has
+                    //   returned `0` (which delegates to `__init`).
+                    unsafe { __exit() }
+                }
+
+                /// # Safety
+                ///
+                /// This function must only be called once.
+                unsafe fn __init() -> ::kernel::ffi::c_int {
+                    let initer = <super::super::LocalModule as ::kernel::InPlaceModule>::init(
+                        ::kernel::module::this_module::<super::super::LocalModule>()
+                    );
+                    // SAFETY: No data race, since `__MOD` can only be accessed by this module
+                    // and there only `__init` and `__exit` access it. These functions are only
+                    // called once and `__exit` cannot be called before or during `__init`.
+                    match unsafe { ::pin_init::raw_try_init(__MOD.as_mut_ptr(), initer) } {
+                        Ok(m) => 0,
+                        Err(e) => e.to_errno(),
+                    }
+                }
+
+                /// # Safety
+                ///
+                /// This function must
+                /// - only be called once,
+                /// - be called after `__init` has been called and returned `0`.
+                unsafe fn __exit() {
+                    // SAFETY: No data race, since `__MOD` can only be accessed by this module
+                    // and there only `__init` and `__exit` access it. These functions are only
+                    // called once and `__init` was already called.
+                    unsafe {
+                        // Invokes `drop()` on `__MOD`, which should be used for cleanup.
+                        __MOD.assume_init_drop();
+                    }
+                }
+
+                #modinfo_ts
+            }
+        }
+
+        mod module_parameters {
+            #params_ts
+        }
+    })
+}