From: Christoph Hellwig hch@lst.de
'commit 16fc3cef33a0 ("swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single")'
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 Signed-off-by: Jianxiong Gao jxgao@google.com --- kernel/dma/swiotlb.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index a3c0ccc53b8d..d1349971f099 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -639,7 +639,6 @@ 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 & ((1 << IO_TLB_SHIFT) - 1);
switch (target) { case SYNC_FOR_CPU: