The driver readily works in 32-bit mode as it takes care there to write zero to the DMA_DESC_ADDRESS_HI field of descriptors. In the receive path, a 32-bit integer is shifted by 32 though leading to a (harmless) warning. Adjust the type to silence it. Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- drivers/net/bcmgenet.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/bcmgenet.c b/drivers/net/bcmgenet.c index 32ec36eff65a..3ae341a658a0 100644 --- a/drivers/net/bcmgenet.c +++ b/drivers/net/bcmgenet.c @@ -314,8 +314,8 @@ static int bcmgenet_gmac_eth_recv(struct eth_device *edev) struct bcmgenet_eth_priv *priv = edev->priv; void *desc_base = priv->mac_reg + GENET_RX_OFF + priv->rx_index * DMA_DESC_SIZE; u32 prod_index = readl(priv->mac_reg + RDMA_PROD_INDEX); - u32 length; - unsigned long addr_lo, addr_hi, addr; + u32 length, addr_lo, addr_hi; + dma_addr_t addr; if (prod_index == priv->c_index) return -EAGAIN; @@ -324,7 +324,7 @@ static int bcmgenet_gmac_eth_recv(struct eth_device *edev) length = (length >> DMA_BUFLENGTH_SHIFT) & DMA_BUFLENGTH_MASK; addr_lo = readl(desc_base + DMA_DESC_ADDRESS_LO); addr_hi = readl(desc_base + DMA_DESC_ADDRESS_HI); - addr = addr_hi << 32 | addr_lo; + addr = (u64)addr_hi << 32 | addr_lo; dma_sync_single_for_cpu(addr, length, DMA_FROM_DEVICE); -- 2.30.2
