[PATCH net v2 2/4] net: stmmac: dwmac4: Fix the MTL_OP_MODE_*_MASK operation
From: Ley Foon Tan
Date: Tue Oct 15 2024 - 23:19:58 EST
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 <leyfoon.tan@xxxxxxxxxxxxxxxx>
---
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_priv *priv,
} else {
pr_debug("GMAC: disable RX SF mode (threshold %d)\n", mode);
mtl_rx_op &= ~MTL_OP_MODE_RSF;
- mtl_rx_op &= MTL_OP_MODE_RTC_MASK;
+ mtl_rx_op &= ~MTL_OP_MODE_RTC_MASK;
if (mode <= 32)
mtl_rx_op |= MTL_OP_MODE_RTC_32;
else if (mode <= 64)
@@ -335,7 +335,7 @@ static void dwmac4_dma_tx_chan_op_mode(struct stmmac_priv *priv,
} else {
pr_debug("GMAC: disabling TX SF (threshold %d)\n", mode);
mtl_tx_op &= ~MTL_OP_MODE_TSF;
- mtl_tx_op &= MTL_OP_MODE_TTC_MASK;
+ mtl_tx_op &= ~MTL_OP_MODE_TTC_MASK;
/* Set the transmit threshold */
if (mode <= 32)
mtl_tx_op |= MTL_OP_MODE_TTC_32;
--
2.34.1