Unverified Commit 0e9c3469 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!11060 parisc: Fix data TLB miss in sba_unmap_sg 

Merge Pull Request from: @ci-robot 
 
PR sync from: Guo Mengqi <guomengqi3@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/SBYFAYNKZQTTC6RLXKRK2E5ARTEA4S4A/ 
 
https://gitee.com/src-openeuler/kernel/issues/IADGAR 
 
Link:https://gitee.com/openeuler/kernel/pulls/11060

 

Reviewed-by: default avatarLiu YongQiang <liuyongqiang13@huawei.com>
Reviewed-by: default avatarWeilong Chen <chenweilong@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents 70857ee4 b066f003

drivers/parisc/sba_iommu.c

+2 −1
Original line number Diff line number Diff line
@@ -1063,7 +1063,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, 
	spin_unlock_irqrestore(&ioc->res_lock, flags);

#endif



	while (sg_dma_len(sglist) && nents--) {

	while (nents && sg_dma_len(sglist)) {



		sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),

				direction, 0);
@@ -1072,6 +1072,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, 
		ioc->usingle_calls--;	/* kluge since call is unmap_sg() */

#endif

		++sglist;

		nents--;

	}



	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__,  nents);