Re: [PATCH v3 0/4] nvmem: fix a const-unsoundness in reg_write

Andy Shevchenko <[email protected]> Thu, 16 Jul 2026 21:09:45 +0300

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On Thu, Jul 16, 2026 at 04:24:07PM +0200, Link Mauve wrote:
> This callback used to take a mutable void * for no reason, which causes
> the compiler to be unaware that the val buffer should never be modified
> by the callback.
> 
> This was found while drafting the nvmem-provider Rust abstraction.
> 
> Thanks to the guidance of Andy Shevchenko, this now introduces a new
> callback and deprecates the existing one, with the goal of renaming the
> new one into the old one once no user remains in the kernel.

...

> - Actually test with COMPILE_TEST, which I forgot to enable before…

Hint, you may use folder as a target in `make`. To avoid this just run

	make ... allyesconfig drivers/nvmem/

(In the similar way for any other folder and its subfolders.)

-- 
With Best Regards,
Andy Shevchenko