net: stmmac: xgmac: Clear previous RX buffer size
authorJose Abreu <Jose.Abreu@synopsys.com>
Wed, 18 Dec 2019 10:17:39 +0000 (11:17 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 12 Jan 2020 11:21:40 +0000 (12:21 +0100)
commita762cc03c0c35d1a7bcb3d414885bcabd1d3fef0
treea4511e47a2b2a2e9fe9e70054b2d8afc22d52741
parentf05252d5399536545a88f39e1b283a94b561fbb5
net: stmmac: xgmac: Clear previous RX buffer size

[ Upstream commit 11d55fd9975f8e46a0e5e19c14899544e81e1e15 ]

When switching between buffer sizes we need to clear the previous value.

Fixes: d6ddfacd95c7 ("net: stmmac: Add DMA related callbacks for XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c