RDMA/mana_ib: use the correct page size for mapping user-mode doorbell page

commit 4a3b99bc04e501b816db78f70064e26a01257910 upstream.

When mapping doorbell page from user-mode, the driver should use the system
page size as this memory 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>
Link: https://patch.msgid.link/1725030993-16213-2-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index 2a411357640e6c8bdcfa318598083d656742597f..1543b436ddc685653f2a8f655f5f1349672a5899 100644 (file)
--- 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);
+               ibdev_dbg(ibdev, "mapped I/O pfn 0x%llx page_size %lu, ret %d\n",
+                         pfn, PAGE_SIZE, ret);
 
        return ret;
 }