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swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single

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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>
Acked-by: Jianxiong Gao <jxgao@google.com>
Tested-by: Jianxiong Gao <jxgao@google.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Christoph Hellwig 2021-02-05 10:44:16 +01:00 committed by Konrad Rzeszutek Wilk
parent 26a7e09478
commit 16fc3cef33
1 changed files with 0 additions and 1 deletions
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1
kernel/dma/swiotlb.c
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@ -660,7 +660,6 @@ void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr,
if (orig_addr == INVALID_PHYS_ADDR) if (orig_addr == INVALID_PHYS_ADDR)
return; return;
orig_addr += (unsigned long)tlb_addr & (IO_TLB_SIZE - 1);
switch (target) { switch (target) {
case SYNC_FOR_CPU: case SYNC_FOR_CPU: