From: Long Li longli@microsoft.com
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@vger.kernel.org Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter") Signed-off-by: Long Li longli@microsoft.com --- 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; }