[PATCH 5.4 282/320] RDMA/hns: Modify the mapping attribute of doorbell to device

Greg Kroah-Hartman
2022-01-24T20:21:42Z

From: Yixing Liu <liuyixing1@huawei.com>

commit 39d5534b1302189c809e90641ffae8cbdc42a8fc upstream.

It is more general for ARM device drivers to use the device attribute to
map PCI BAR spaces.

Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/20211206133652.27476-1-liangwenpeng@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/infiniband/hw/hns/hns_roce_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -362,7 +362,7 @@ static int hns_roce_mmap(struct ib_ucont
return rdma_user_mmap_io(context, vma,
to_hr_ucontext(context)->uar.pfn,
PAGE_SIZE,
- pgprot_noncached(vma->vm_page_prot));
+ pgprot_device(vma->vm_page_prot));

/* vm_pgoff: 1 -- TPTR */
case 1: