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[for-next,19/20] RDMA/hns: Replace condition statement using hardware version information

Message ID 1504084998-64397-20-git-send-email-xavier.huwei@huawei.com (mailing list archive)
State Accepted
Headers show

Commit Message

Wei Hu (Xavier) Aug. 30, 2017, 9:23 a.m. UTC 
This patch replaces condition statement to reduce usage of hardware version
information in common 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>
---
 drivers/infiniband/hw/hns/hns_roce_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index a110f96..7a0c1e8 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -381,7 +381,8 @@  static int hns_roce_mmap(struct ib_ucontext *context,
 				       to_hr_ucontext(context)->uar.pfn,
 				       PAGE_SIZE, vma->vm_page_prot))
 			return -EAGAIN;
-	} else if (vma->vm_pgoff == 1 && hr_dev->hw_rev == HNS_ROCE_HW_VER1) {
+	} else if (vma->vm_pgoff == 1 && hr_dev->tptr_dma_addr &&
+		   hr_dev->tptr_size) {
 		/* vm_pgoff: 1 -- TPTR */
 		if (io_remap_pfn_range(vma, vma->vm_start,
 				       hr_dev->tptr_dma_addr >> PAGE_SHIFT,