Quoting Matthew Auld (2021-01-18 14:17:31) > From: CQ Tang <[email protected]>
First patch hasn't arrive, so excuse this misplaced reply.
- if (GEM_WARN_ON(!r->sgt.pfn))
+ if (GEM_WARN_ON(!use_dma(r->iobase) && !r->sgt.pfn))
return -EINVAL;
The better check would be if (GEM_WARN_ON(!r->sgt.sgp)) return -EINVAL;
-Chris
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