| Message ID | 20250612104253.10413-1-abhinav.ogl@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v2] rust : Update the bios_limit_callback to use the C FFI types #1170 | expand |
diff --git a/rust/kernel/cpufreq.rs b/rust/kernel/cpufreq.rs index b0a9c6182aec..e97607ed86c2 100644 --- a/rust/kernel/cpufreq.rs +++ b/rust/kernel/cpufreq.rs @@ -1277,7 +1277,7 @@ extern "C" fn update_limits_callback(ptr: *mut bindings::cpufreq_policy) { /// Driver's `bios_limit` callback. /// /// SAFETY: Called from C. Inputs must be valid pointers. - extern "C" fn bios_limit_callback(cpu: i32, limit: *mut u32) -> kernel::ffi::c_int { + extern "C" fn bios_limit_callback(cpu: c_int, limit: *mut c_uint) -> c_int { from_result(|| { let mut policy = PolicyCpu::from_cpu(cpu as u32)?;
Update the `bios_limit_callback` function to use `c_int` and `c_uint` types, which match the C ABI for the corresponding callback function. These types are imported from the prelude. This change ensures the Rust function signature exactly matches its expected C counterpart, avoiding potential issues with type mismatches in the FFI boundary. Reported-by: Miguel Ojeda <ojeda@kernel.org> Closes: https://lore.kernel.org/rust-for-linux/CANiq72=WpuGELzLbH-fxdOeJy9fiDFwatz6ynERDh=HP2z2MBw@mail.gmail.com/. Signed-off-by: Abhinav Ananthu <abhinav.ogl@gmail.com> --- rust/kernel/cpufreq.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)