[bug report] iommu: rockchip: Add support for iommu v2

[Dan Carpenter]

Hello Benjamin Gaignard,

The patch c55356c534aa: "iommu: rockchip: Add support for iommu v2"
from Jun 4, 2021, leads to the following static checker warning:

	drivers/iommu/rockchip-iommu.c:552 rk_dte_addr_phys_v2()
	warn: potential shift truncation.  '0xff00000000 (0,4294967296-1095216660480) << 28'

drivers/iommu/rockchip-iommu.c
   544  }
   545  
   546  #define DT_HI_MASK GENMASK_ULL(39, 32)
                           ^^^^^^^^^^^^^^^^^^^

   547  #define DT_SHIFT   28
   548  
   549  static inline phys_addr_t rk_dte_addr_phys_v2(u32 addr)
   550  {
   551          return (phys_addr_t)(addr & RK_DTE_PT_ADDRESS_MASK) |
   552                 ((addr & DT_HI_MASK) << DT_SHIFT);
                         ^^^^^^^^^^^^^^^^^
Is addr supposed to be a u64?

   553  }

regards,
dan carpenter