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charset="utf-8" In order to mask off the bits, we need to use the '~' operator to invert all the bits of _MASK and clear them. Fixes: 48863ce5940f ("stmmac: add DMA support for GMAC 4.xx") Signed-off-by: Ley Foon Tan --- drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net= /ethernet/stmicro/stmmac/dwmac4_dma.c index e0165358c4ac..4e1b1bd98f68 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c @@ -266,7 +266,7 @@ static void dwmac4_dma_rx_chan_op_mode(struct stmmac_pr= iv *priv, } else { pr_debug("GMAC: disable RX SF mode (threshold %d)\n", mode); mtl_rx_op &=3D ~MTL_OP_MODE_RSF; - mtl_rx_op &=3D MTL_OP_MODE_RTC_MASK; + mtl_rx_op &=3D ~MTL_OP_MODE_RTC_MASK; if (mode <=3D 32) mtl_rx_op |=3D MTL_OP_MODE_RTC_32; else if (mode <=3D 64) @@ -335,7 +335,7 @@ static void dwmac4_dma_tx_chan_op_mode(struct stmmac_pr= iv *priv, } else { pr_debug("GMAC: disabling TX SF (threshold %d)\n", mode); mtl_tx_op &=3D ~MTL_OP_MODE_TSF; - mtl_tx_op &=3D MTL_OP_MODE_TTC_MASK; + mtl_tx_op &=3D ~MTL_OP_MODE_TTC_MASK; /* Set the transmit threshold */ if (mode <=3D 32) mtl_tx_op |=3D MTL_OP_MODE_TTC_32; --=20 2.34.1