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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. Signed-off-by: Ley Foon Tan Reviewed-by: Simon Horman --- 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 22a044d93e17..0cb84a0041a4 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c @@ -274,7 +274,7 @@ 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) @@ -343,7 +343,7 @@ 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