pci_alloc_consitent calls dma_alloc_coherent directly. In commit af7ddd8a627c ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"), dma_alloc_coherent has already zeroed the memory. So memset is not needed.
Signed-off-by: Fuqian Huang <huangfq.dax...@gmail.com> --- drivers/net/ethernet/atheros/atlx/atl2.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c index 3a3fb5ce0fee..3aba38322717 100644 --- a/drivers/net/ethernet/atheros/atlx/atl2.c +++ b/drivers/net/ethernet/atheros/atlx/atl2.c @@ -291,7 +291,6 @@ static s32 atl2_setup_ring_resources(struct atl2_adapter *adapter) &adapter->ring_dma); if (!adapter->ring_vir_addr) return -ENOMEM; - memset(adapter->ring_vir_addr, 0, adapter->ring_size); /* Init TXD Ring */ adapter->txd_dma = adapter->ring_dma ; -- 2.11.0