lkml.org 
[lkml]   [2020]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 01/11] swiotlb-xen: use vmalloc_to_page on vmalloc virt addresses
Well, this isn't just RPi4, but basically any ARM or ARM64 system
with non-coherent DMA (which is most of them).

> + struct page *pg;

Please spell out page.

>
> if (hwdev && hwdev->coherent_dma_mask)
> dma_mask = hwdev->coherent_dma_mask;
> @@ -346,9 +347,11 @@ xen_swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
> /* Convert the size to actually allocated. */
> size = 1UL << (order + XEN_PAGE_SHIFT);
>
> + pg = is_vmalloc_addr(vaddr) ? vmalloc_to_page(vaddr) :
> + virt_to_page(vaddr);

Please use plain old if/else to make this more readable.

\
 
 \ /
  Last update: 2020-06-08 09:05    [W:0.538 / U:0.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site