Re: [PATCH 1/2] dma-mapping: fix page attributes for dma_mmap_*
flat view
From: Gavin Li <hidden>
Date: 2019-08-06 02:56:01
Also in:
linux-arm-kernel, linux-mips, lkml
quoted hunk
/* create a coherent mapping */ ret = dma_common_contiguous_remap(page, size, VM_USERMAP, - arch_dma_mmap_pgprot(dev, PAGE_KERNEL, attrs), + dma_pgprot(dev, PAGE_KERNEL, attrs), __builtin_return_address(0)); if (!ret) { __dma_direct_free_pages(dev, size, page);
Is dma_common_contiguous_remap() still necessary in the DMA_ATTR_NON_CONSISTENT case? I would presume it would be fine to just return a linearly mapped address in that case.