Re: [PATCH v3] lib/vsprintf: Make no_hash_pointers take effect early

[Petr Mladek]

On Thu 2026-06-18 19:06:40, Kaitao Cheng wrote:
> From: Kaitao Cheng <chengkaitao@xxxxxxxxxx>
> 
> The no_hash_pointers boot parameter is now handled as an alias for
> hash_pointers=never. However, hash_pointers=never only records the
> selected mode during early parameter parsing, and no_hash_pointers is
> not updated until hash_pointers_finalize() runs later from SLUB init.
> 
> This leaves a window during very early boot where %p output is still
> hashed even though the user explicitly requested unhashed pointers with
> no_hash_pointers or hash_pointers=never.
> 
> Set no_hash_pointers as soon as the "never" mode is parsed. The later
> hash_pointers_finalize() call still keeps the final policy decision in
> one place, but explicit requests to disable pointer hashing now take
> effect for early boot users too.
> 
> Signed-off-by: Kaitao Cheng <chengkaitao@xxxxxxxxxx>

JFYI, the patch has been pushed into printk/linux.git,
branch for-7.3-trivial.

As the branch name suggests, it is intended for 7.3.
But as a trivial change, I could add it to a pull request for some
7.2-rcX when I need to create one because of a more important fix.

Best Regards,
Petr