[PATCH v5 09/10] powerpc/fsl_booke/kaslr: support nokaslr cmdline parameter

[Jason Yan]

On 2019/8/7 21:03, Michael Ellerman wrote:
> Jason Yan <yanaijie at huawei.com> writes:
>> diff --git a/arch/powerpc/kernel/kaslr_booke.c b/arch/powerpc/kernel/kaslr_booke.c
>> index c6b326424b54..436f9a03f385 100644
>> --- a/arch/powerpc/kernel/kaslr_booke.c
>> +++ b/arch/powerpc/kernel/kaslr_booke.c
>> @@ -361,6 +361,18 @@ static unsigned long __init kaslr_choose_location(void *dt_ptr, phys_addr_t size
>>   	return kaslr_offset;
>>   }
>>   
>> +static inline __init bool kaslr_disabled(void)
>> +{
>> +	char *str;
>> +
>> +	str = strstr(boot_command_line, "nokaslr");
>> +	if (str == boot_command_line ||
>> +	    (str > boot_command_line && *(str - 1) == ' '))
>> +		return true;
> 
> This extra logic doesn't work for "nokaslrfoo". Is it worth it?
> 

Seems nobody likes this logic. Maybe I can delete this logic for now and
see if anyone has any objections.

> cheers
> 
> .
>