On Mon, Jan 08, 2024 at 11:14:18AM +0100, Ahmad Fatoum wrote: > 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(-) Applied, thanks Sascha > > 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 > > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
