The receive buffer needs to be cacheline aligned for cache maintenance to avoid invalidating unrelated malloc memory. This was so far not the case due to malloc's minimum alignment of 8-byte (with TLSF), so switch to dma_alloc instead. Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- drivers/net/fsl-fman.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/fsl-fman.c b/drivers/net/fsl-fman.c index ff32fa8fc753..baafe027c079 100644 --- a/drivers/net/fsl-fman.c +++ b/drivers/net/fsl-fman.c @@ -620,9 +620,7 @@ static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth) * RX_BD_RING_SIZE); /* alloc Rx buffer from main memory */ - rx_buf_pool = malloc(MAX_RXBUF_LEN * RX_BD_RING_SIZE); - if (!rx_buf_pool) - return -ENOMEM; + rx_buf_pool = dma_alloc(MAX_RXBUF_LEN * RX_BD_RING_SIZE); memset(rx_buf_pool, 0, MAX_RXBUF_LEN * RX_BD_RING_SIZE); -- 2.39.2
