[RFC] mm: Allow ZONE_DMA32 to be disabled via kernel command line

[Randy Dunlap]

On 1/26/23 10:51, Dave Hansen wrote:
> On 1/26/23 08:43, Georgi Djakov wrote:
>> From: Chris Goldsworthy <quic_cgoldswo at quicinc.com>

  
>> +static int __init early_disable_dma32(char *buf)
>> +{
>> +	if (!buf)
>> +		return -EINVAL;
>> +
>> +	if (!strcmp(buf, "on"))
>> +		disable_dma32 = true;
>> +
>> +	return 0;
>> +}
>> +early_param("disable_dma32", early_disable_dma32);
> 
> Ick.  Is there no way to do this other than a cross-arch copy/paste?

I think that using __setup() instead of early_param() would allow that.

-- 
~Randy