Re: [PATCH v5 13/16] powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX

Andreas Schwab
2019-06-15T12:28:55Z

On Feb 21 2019, Christophe Leroy <christophe.leroy@c-s.fr> wrote:

> diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
> index a000768a5cc9..6e56a6240bfa 100644
> --- a/arch/powerpc/mm/pgtable_32.c
> +++ b/arch/powerpc/mm/pgtable_32.c
> @@ -353,7 +353,10 @@ void mark_initmem_nx(void)
> unsigned long numpages = PFN_UP((unsigned long)_einittext) -
> PFN_DOWN((unsigned long)_sinittext);
>
> - change_page_attr(page, numpages, PAGE_KERNEL);
> + if (v_block_mapped((unsigned long)_stext) + 1)

That is always true.

Andreas.

--
Andreas Schwab, schwab@linux-m68k.org
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