[PATCH 7/9] swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single
Christoph Hellwig
hch at lst.de
Sun Feb 7 11:03:25 EST 2021
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 at 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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