Honestly I think this code should go away without any replacement. There is no reason why we should have a special debug printk just for one specific reason why there is a requirement for a large DMA mask.
- [PATCH 2/3] DMA mapping: Move SME handling to x86-sp... Thiago Jung Bauermann
- Re: [PATCH 2/3] DMA mapping: Move SME handling ... Christoph Hellwig