[PATCH 7/9] swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single
From: Christoph Hellwig <hch@lst.de>
Date: 2021-02-07 16:04:03
Also in:
linux-iommu
Subsystem:
dma mapping helpers, the rest · Maintainers:
Marek Szyprowski, Linus Torvalds
swiotlb_tbl_map_single currently nevers sets a tlb_addr that is not aligned to the tlb bucket size. But we're going to add such a case soon, for which this adjustment would be bogus. Signed-off-by: Christoph Hellwig <hch@lst.de> --- kernel/dma/swiotlb.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 381c24ef1ac1d0..8eb84c337fe90c 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c@@ -660,7 +660,6 @@ void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr, if (orig_addr == INVALID_PHYS_ADDR) return; - orig_addr += (unsigned long)tlb_addr & (IO_TLB_SIZE - 1); switch (target) { case SYNC_FOR_CPU:
--
2.29.2
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