Commit c0788f74 authored by Pavel Belous's avatar Pavel Belous Committed by David S. Miller
Browse files

net: ethernet: aquantia: Fixed incorrect buff->len calculation. 



rxd_wb->pkt_len is the total length of the packet.
If we received a large packet (with length > AQ_CFG_RX_FRAME_MAX) then we
will get multiple buffers. We need to fix the length of the last buffer.

Signed-off-by: default avatarPavel Belous <pavel.belous@aquantia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 55629109

drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c

+2 −2
Original line number Diff line number Diff line
@@ -659,8 +659,8 @@ static int hw_atl_a0_hw_ring_rx_receive(struct aq_hw_s *self, 
			}



			if (HW_ATL_A0_RXD_WB_STAT2_EOP & rxd_wb->status) {

				buff->len = (rxd_wb->pkt_len &

						(AQ_CFG_RX_FRAME_MAX - 1U));

				buff->len = rxd_wb->pkt_len %

					AQ_CFG_RX_FRAME_MAX;

				buff->len = buff->len ?

					buff->len : AQ_CFG_RX_FRAME_MAX;

				buff->next = 0U;

drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c

+2 −2
Original line number Diff line number Diff line
@@ -673,8 +673,8 @@ static int hw_atl_b0_hw_ring_rx_receive(struct aq_hw_s *self, 
			}



			if (HW_ATL_B0_RXD_WB_STAT2_EOP & rxd_wb->status) {

				buff->len = (rxd_wb->pkt_len &

						(AQ_CFG_RX_FRAME_MAX - 1U));

				buff->len = rxd_wb->pkt_len %

					AQ_CFG_RX_FRAME_MAX;

				buff->len = buff->len ?

					buff->len : AQ_CFG_RX_FRAME_MAX;

				buff->next = 0U;

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