[PATCHv4 2/2] arm64: Add CONFIG_DEBUG_SET_MODULE_RONX support

[Catalin Marinas]

On Tue, Aug 19, 2014 at 08:41:43PM +0100, Laura Abbott wrote:
> --- /dev/null
> +++ b/arch/arm64/mm/pageattr.c
[...]
> +static int change_memory_common(unsigned long addr, int numpages,
> +				pgprot_t set_mask, pgprot_t clear_mask)
> +{
> +	unsigned long start = addr;
> +	unsigned long size = PAGE_SIZE*numpages;
> +	unsigned long end = start + size;
> +	int ret;
> +	struct page_change_data data;
> +
> +	if (!IS_ALIGNED(addr, PAGE_SIZE)) {
> +		addr &= PAGE_MASK;
> +		WARN_ON_ONCE(1);
> +	}
> +
> +	if (!is_module_address(start) || !is_module_address(end))
> +		return -EINVAL;

Minor thing, "end" is exclusive here. Do you still get the right check
with is_module_address(end)?

-- 
Catalin