1 // SPDX-License-Identifier: GPL-2.0 2 3 //! Bindings. 4 //! 5 //! Imports the generated bindings by `bindgen`. 6 //! 7 //! This crate may not be directly used. If you need a kernel C API that is 8 //! not ported or wrapped in the `kernel` crate, then do so first instead of 9 //! using this crate. 10 11 #![no_std] 12 #![allow( 13 clippy::all, 14 missing_docs, 15 non_camel_case_types, 16 non_upper_case_globals, 17 non_snake_case, 18 improper_ctypes, 19 unreachable_pub, 20 unsafe_op_in_unsafe_fn 21 )] 22 #![feature(cfi_encoding)] 23 24 #[allow(dead_code)] 25 #[allow(clippy::cast_lossless)] 26 #[allow(clippy::ptr_as_ptr)] 27 #[allow(clippy::ref_as_ptr)] 28 #[allow(clippy::undocumented_unsafe_blocks)] 29 #[cfg_attr(CONFIG_RUSTC_HAS_UNNECESSARY_TRANSMUTES, allow(unnecessary_transmutes))] 30 mod bindings_raw { 31 use pin_init::{MaybeZeroable, Zeroable}; 32 33 // Manual definition for blocklisted types. 34 type __kernel_size_t = usize; 35 type __kernel_ssize_t = isize; 36 type __kernel_ptrdiff_t = isize; 37 38 // `bindgen` doesn't automatically do this, see 39 // <https://github.com/rust-lang/rust-bindgen/issues/3196> 40 // 41 // SAFETY: `__BindgenBitfieldUnit<Storage>` is a newtype around `Storage`. 42 unsafe impl<Storage> Zeroable for __BindgenBitfieldUnit<Storage> where Storage: Zeroable {} 43 44 // Use glob import here to expose all helpers. 45 // Symbols defined within the module will take precedence to the glob import. 46 pub use super::bindings_helper::*; 47 include!(concat!( 48 env!("OBJTREE"), 49 "/rust/bindings/bindings_generated.rs" 50 )); 51 } 52 53 // When both a directly exposed symbol and a helper exists for the same function, 54 // the directly exposed symbol is preferred and the helper becomes dead code, so 55 // ignore the warning here. 56 #[allow(dead_code)] 57 mod bindings_helper { 58 // Import the generated bindings for types. 59 use super::bindings_raw::*; 60 include!(concat!( 61 env!("OBJTREE"), 62 "/rust/bindings/bindings_helpers_generated.rs" 63 )); 64 } 65 66 pub use bindings_raw::*; 67 68 pub const compat_ptr_ioctl: Option< 69 unsafe extern "C" fn(*mut file, ffi::c_uint, ffi::c_ulong) -> ffi::c_long, 70 > = { 71 #[cfg(CONFIG_COMPAT)] 72 { 73 Some(bindings_raw::compat_ptr_ioctl) 74 } 75 #[cfg(not(CONFIG_COMPAT))] 76 { 77 None 78 } 79 }; 80