From: Long Li <longli@xxxxxxxxxxxxx>
When mapping doorbell page from user-mode, the driver should use the system
page size as the doorbell is allocated via mmap() from user-mode.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Long Li <longli@xxxxxxxxxxxxx>
---
drivers/infiniband/hw/mana/main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index f68f54aea820..b26c4ebec2e0 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -511,13 +511,13 @@ int mana_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma)
PAGE_SHIFT;
prot = pgprot_writecombine(vma->vm_page_prot);
- ret = rdma_user_mmap_io(ibcontext, vma, pfn, gc->db_page_size, prot,
+ ret = rdma_user_mmap_io(ibcontext, vma, pfn, PAGE_SIZE, prot,
NULL);
if (ret)
ibdev_dbg(ibdev, "can't rdma_user_mmap_io ret %d\n", ret);
else
ibdev_dbg(ibdev, "mapped I/O pfn 0x%llx page_size %u, ret %d\n",
- pfn, gc->db_page_size, ret);
+ pfn, PAGE_SIZE, ret);
return ret;
}
--
2.17.1
