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linux/rust
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Miguel Ojeda a762f883ec rust: i2c: prepare for core::ffi::CStr 
The rust-next tree contains commit:

    3b83f5d5e7 ("rust: replace `CStr` with `core::ffi::CStr`")

which, when merged together with commits:

    57c5bd9aee ("rust: i2c: add basic I2C device and driver abstractions")
    f3cc26a417 ("rust: i2c: add manual I2C device creation abstractions")

from this tree (driver-core), produces errors like the following:

    error[E0599]: no method named `len_with_nul` found for reference `&'static ffi::CStr` in the current scope
      --> rust/kernel/i2c.rs:48:16
       |
    48 |             id.len_with_nul() <= Self::I2C_NAME_SIZE,
       |                ^^^^^^^^^^^^ method not found in `&CStr`

    error[E0599]: no method named `as_bytes_with_nul` found for reference `&'static ffi::CStr` in the current scope
      --> rust/kernel/i2c.rs:51:22
       |
    51 |         let src = id.as_bytes_with_nul();
       |                      ^^^^^^^^^^^^^^^^^
       |
    help: there is a method `to_bytes_with_nul` with a similar name
       |
    51 |         let src = id.to_bytes_with_nul();
       |                      ~~~~~~~~~~~~~~~~~

which were detected in linux-next by Stephen [1].

The `i2c` code can be independently prepared to be ready for the change,
thus do so.

The change is similar to the one done by Tamir in commit 657403637f
("rust: acpi: use `core::ffi::CStr` method names").

Link: https://lore.kernel.org/all/20251120181111.65ce75a0@canb.auug.org.au/ [1]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://patch.msgid.link/20251123163536.1771801-1-ojeda@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-11-24 09:14:47 +13:00
..
bindings rust: i2c: add basic I2C device and driver abstractions 2025-11-18 10:26:42 +13:00
helpers rust: add udelay() function 2025-11-04 13:25:29 +01:00
kernel rust: i2c: prepare for core::ffi::CStr 2025-11-24 09:14:47 +13:00
macros linux_kselftest-kunit-6.18-rc1 2025-10-01 19:15:11 -07:00
pin-init add [pin_]init_scope to execute code before creating an initializer 2025-10-21 00:40:12 +02:00
uapi Char/Misc/IIO/Binder changes for 6.18-rc1 2025-10-04 16:26:32 -07:00
.gitignore rust: support running Rust documentation tests as KUnit ones 2023-07-19 09:32:53 -06:00
.kunitconfig rust: add kunitconfig 2025-03-19 23:22:21 +01:00
bindgen_parameters rust: derive Zeroable for all structs & unions generated by bindgen where possible 2025-09-08 14:03:17 +02:00
build_error.rs rust: add build_error crate 2022-12-04 01:59:16 +01:00
compiler_builtins.rs ARM: 9441/1: rust: Enable Rust support for ARMv7 2025-03-26 13:31:16 +00:00
exports.c rust: exports: improve grammar in commentary 2024-10-21 17:35:33 +02:00
ffi.rs rust: use absolute paths in macros referencing core and kernel 2025-05-23 00:12:14 +02:00
Makefile rust: add pin-init as a dependency to bindings and uapi 2025-09-08 13:42:39 +02:00