Subject: Re: [PATCH 09/31] powerpc/mm: Don't use pte_val as lvalue

From: Scott Wood <[email-masked]>
Date: Mon, 21 Sep 2015 21:22:23 -0500

On Mon, Sep 21, 2015 at 12:10:36PM +0530, Aneesh Kumar K.V wrote:
> +static inline pte_t pte_mkwrite(pte_t pte)
> +{
> +	pte_basic_t ptev;
> +
> +	ptev = pte_val(pte) & ~_PAGE_RO;
> +	ptev |= _PAGE_RW;
> +	return __pte(pte);
> +}

s/__pte(pte)/__pte(ptev)/

...to fix an endless handle_mm_fault() loop.

CONFIG_STRICT_MM_TYPECHECKS would have caught this.

-Scott