[PATCHv4 2/2] arm64: Add CONFIG_DEBUG_SET_MODULE_RONX support

[lauraa@codeaurora.org (Laura Abbott)]

On 8/26/2014 7:40 AM, Catalin Marinas wrote:
> 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)?
>

No, You are correct. I'll talk to Will to get that fixed up.

Thanks,
Laura

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