This series makes preparations for the replacement of our custom `CStr` type with the analogous type available in `core`.
As this is a large migration that touches many subsystems, it will take place in several cycles, each of which may see multiple series: 1. introduces facades in the kernel crate that downstream code can reference. [this series] 2. migrate downstream code to kernel crate facades. (N series, divided by subsystem). 3. replace kernel crate facades to allow `Display`ing foreign types (such as `core::ffi::CStr`). Replace `CStr` with `core::ffi::CStr`. 4. migrate uses of `c_str!` to C-String literals. Replace references to `kernel::str::CStr` with `kernel::ffi::CStr`. (N series, divided by subsystem). 5. rename `c_str!` to discourage use. Remove `CStr` reexport from `kernel/str.rs`. Signed-off-by: Tamir Duberstein <tam...@gmail.com> --- Tamir Duberstein (6): rust: kernel: remove `fmt!`, fix clippy::uninlined-format-args rust: kernel: add `fmt` module rust: use `kernel::{fmt,prelude::fmt!}` rust: str: remove unnecessary qualification rust: add `CStr` methods matching `core::ffi::CStr` rust: use `core::ffi::CStr` method names drivers/cpufreq/rcpufreq_dt.rs | 3 +- drivers/gpu/nova-core/firmware.rs | 5 +- rust/kernel/error.rs | 8 ++-- rust/kernel/fmt.rs | 7 +++ rust/kernel/lib.rs | 1 + rust/kernel/opp.rs | 2 +- rust/kernel/prelude.rs | 2 +- rust/kernel/print.rs | 6 +-- rust/kernel/str.rs | 97 ++++++++++++++++++++++++--------------- samples/rust/rust_print_main.rs | 2 +- 10 files changed, 83 insertions(+), 50 deletions(-) --- base-commit: 769e324b66b0d92d04f315d0c45a0f72737c7494 change-id: 20250704-core-cstr-prepare-9b9e6a7bd57e Best regards, -- Tamir Duberstein <tam...@gmail.com>