Re: [PATCH v4 08/16] kmsan: convert kmsan_handle_dma to use physical addresses
From: Jason Gunthorpe <jgg@nvidia.com>
Date: 2025-08-28 15:00:57
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On Tue, Aug 19, 2025 at 08:36:52PM +0300, Leon Romanovsky wrote:
/* Helper function to handle DMA data transfers. */
-void kmsan_handle_dma(struct page *page, size_t offset, size_t size,
+void kmsan_handle_dma(phys_addr_t phys, size_t size,
enum dma_data_direction dir)
{
+ struct page *page = phys_to_page(phys);
u64 page_offset, to_go, addr;
if (PageHighMem(page))
return;
- addr = (u64)page_address(page) + offset;
+ addr = (u64)page_address(page) + offset_in_page(phys);addr = phys_to_virt(phys); And make addr a void * Otherwise looks fine Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Jason