Re: [PATCH v5 06/13] module: Move strict rwx support to a separate file

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On Thu 2022-02-10 12:21 +0000, Christophe Leroy wrote:
> This file generates many checkpatch WARNINGs and CHECKs.
> Don't worry too much about the ones telling you to use WARN_ON() instead
> of BUG_ON() for the time being, but others should be handled.

Yes, with ./scripts/checkpatch.pl --strict'.
Please note: I have used '--ignore=ASSIGN_IN_IF,AVOID_BUG' previously on
that file. Albeit, I will resolve the check violations e.g. "Alignment
should match open parenthesis" etc.

> > +# define debug_align(X) ALIGN(X, PAGE_SIZE)
>
> You can use PAGE_ALIGN() instead.

Agreed: PAGE_ALIGN(X) does expand to ALIGN(X, PAGE_SIZE)

> > +#ifdef CONFIG_ARCH_HAS_STRICT_MODULE_RWX
>
> This #ifdef is not needed, frob_text() always exists.

I will leave this for you to remove, in your patch [1].

> > +    BUG_ON((unsigned long)layout->base & (PAGE_SIZE-1));
>
> Could be:
>
>     BUG_ON(!PAGE_ALIGNED(layout->base));
>
>
> Same for all others.

Agreed.

[1]: https://lore.kernel.org/lkml/203348805c9ac9851d8939d15cb9802ef047b5e2.1643919758.git.christophe.leroy@xxxxxxxxxx/

Kind regards,
-- 
Aaron Tomlin




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