Revert "dma-mapping: MMIO mappings still need phys_to_dma"

pelwell · pelwell · commit 8c951e92f4b1 · 2025-11-17T16:57:36.000Z
This reverts commit 19a2aa9.
diff --git a/kernel/dma/direct.h b/kernel/dma/direct.h
@@ -94,7 +94,7 @@ static inline dma_addr_t dma_direct_map_phys(struct device *dev,
 	}
 
 	if (attrs & DMA_ATTR_MMIO) {
-		dma_addr = phys_to_dma(dev, phys);
+		dma_addr = phys;
 		if (unlikely(!dma_capable(dev, dma_addr, size, false)))
 			goto err_overflow;
 	} else {

Original file line number	Diff line number	Diff line change
`@@ -94,7 +94,7 @@ static inline dma_addr_t dma_direct_map_phys(struct device *dev,`
`94`	`94`	`}`
`95`	`95`
`96`	`96`	`if (attrs & DMA_ATTR_MMIO) {`
`97`		`- dma_addr = phys_to_dma(dev, phys);`
	`97`	`+ dma_addr = phys;`
`98`	`98`	`if (unlikely(!dma_capable(dev, dma_addr, size, false)))`
`99`	`99`	`goto err_overflow;`
`100`	`100`	`} else {`