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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Yixing Liu <liuyixing1@huawei.com>,
        Wenpeng Liang <liangwenpeng@huawei.com>,
        Jason Gunthorpe <jgg@nvidia.com>
Subject: [PATCH 5.16 0925/1039] RDMA/hns: Modify the mapping attribute of doorbell to device
Date:   Mon, 24 Jan 2022 19:45:14 +0100
Message-Id: <20220124184156.385374522@linuxfoundation.org>
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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
@@ -442,7 +442,7 @@ static int hns_roce_mmap(struct ib_ucont
 	prot = vma->vm_page_prot;
 
 	if (entry->mmap_type != HNS_ROCE_MMAP_TYPE_TPTR)
-		prot = pgprot_noncached(prot);
+		prot = pgprot_device(prot);
 
 	ret = rdma_user_mmap_io(uctx, vma, pfn, rdma_entry->npages * PAGE_SIZE,
 				prot, rdma_entry);