net: ena: use lower_32_bits()/upper_32_bits() to split dma address

BugLink: http://bugs.launchpad.net/bugs/1701575
In ena_com_mem_addr_set(), use the above functions to split dma address
to the lower 32 bits and the higher 16 bits.

Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 3ae5907c61587ed8327484bfdda87de0257ea73f net-next)
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Brad Figg <brad.figg@canonical.com>

diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index f6e1d30523a64efec2e1147aaced56374466339f..52beba8c7a39990d3a9d6fb5910c689905a3a6a9 100644 (file)
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -99,8 +99,8 @@ static inline int ena_com_mem_addr_set(struct ena_com_dev *ena_dev,
                return -EINVAL;
        }
 
-       ena_addr->mem_addr_low = (u32)addr;
-       ena_addr->mem_addr_high = (u64)addr >> 32;
+       ena_addr->mem_addr_low = lower_32_bits(addr);
+       ena_addr->mem_addr_high = (u16)upper_32_bits(addr);
 
        return 0;
 }