Re: [PATCH] docs: kernel-doc: python: strip __counted_by_ptr macro

[Kees Cook]

On Wed, May 06, 2026 at 11:04:12AM +0000, Tudor Ambarus wrote:
> The `__counted_by_ptr` macro was recently introduced [1] to extend
> bounds checking semantics to standard dynamically allocated pointers.
> 
> However, the new Python implementation of kernel-doc does not currently
> recognize it as a compiler attribute. When kernel-doc encounters a
> struct member annotated with this macro, it fails to parse the variable
> name correctly, resulting in false-positive warnings like:
> 
>   Warning: ... struct member '__counted_by_ptr(cmdcnt' not described
> 
> Add `__counted_by_ptr` to the `struct_xforms` regex list so it gets
> safely stripped out during the parsing phase, mirroring the existing
> behavior for `__counted_by`. Update the corresponding unit tests.
> 
> Link: https://git.kernel.org/torvalds/c/150a04d817d8 [1]
> Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>

Reviewed-by: Kees Cook <kees@xxxxxxxxxx>

-- 
Kees Cook