AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single

Browse Source 
commit: 16fc3cef33a04632ab6b31758abdd77563a20759

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>
Signed-off-by: Jianxiong Gao <jxgao@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jianxiong Gao 2021-04-29 17:33:13 +00:00 committed by Greg Kroah-Hartman
parent 25ed8827cf
commit 85a5a6875c
1 changed files with 0 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
kernel/dma/swiotlb.c
View File

@ -644,7 +644,6 @@ 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: