Re: [PATCH v8 2/4] rust: kernel: Add pointer wrapper types for safe pointer formatting

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Thu, Jan 01, 2026 at 04:16:02PM +0800, Ke Sun wrote:
> Add two pointer wrapper types (HashedPtr, RawPtr) to rust/kernel/ptr.rs
> that correspond to C kernel's printk format specifiers %p and %px. These
> types provide type-safe pointer formatting that matches C kernel patterns.
> 
> These wrapper types implement core::fmt::Pointer and delegate to the
> corresponding kernel formatting functions, enabling safe pointer
> formatting in Rust code that prevents information leaks about kernel
> memory layout.
> 
> Users can explicitly use these types:
>     pr_info!("{:p}\n", HashedPtr(ptr));
>     pr_info!("{:p}\n", RawPtr(ptr));
> 
> HashedPtr uses ptr_to_hashval() to hash pointers before printing,
> providing the default safe behavior for kernel pointers. RawPtr prints
> the raw address and should only be used for debugging purposes.

> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Definitely wrong tag here. Please, do not apply random tags on behalf of
others. You must get it explicitly.

-- 
With Best Regards,
Andy Shevchenko