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| author |  Wei Hu\(Xavier\) <xavier.huwei@huawei.com>
| 2017-11-28 15:10:28 +0800 |
|---|---|---|
| committer |  Jason Gunthorpe <jgg@mellanox.com>
| 2017-12-01 12:21:27 -0700 |
| commit | 378efe798ecf0e7d9730a595ef3419b046e34fb4 (patch) | |
| tree | 47926cc1ac1285b1cff4d1f66d75e4d5c902a5ca /kernel | |
| parent | RDMA/hns: Get rid of virt_to_page and vmap calls after dma_alloc_coherent (diff) | |
| download | linux-378efe798ecf0e7d9730a595ef3419b046e34fb4.tar.gz linux-378efe798ecf0e7d9730a595ef3419b046e34fb4.tar.bz2 linux-378efe798ecf0e7d9730a595ef3419b046e34fb4.zip | |
RDMA/hns: Get rid of page operation after dma_alloc_coherent
In general, dma_alloc_coherent() returns a CPU virtual address and
a DMA address, and we have no guarantee that the underlying memory
even has an associated struct page at all.
This patch gets rid of the page operation after dma_alloc_coherent,
and records the VA returned form dma_alloc_coherent in the struct
of hem in hns RoCE driver.
Fixes: 9a44353("IB/hns: Add driver files for hns RoCE driver")
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Xiping Zhang (Francis) <zhangxiping3@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions