Thread (5 messages) 5 messages, 2 authors, 2024-10-23

[PATCH net-next, v1 2/3] net: stmmac: dwmac4: Fix the MTL_OP_MODE_*_MASK operation

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From: Ley Foon Tan <hidden>
Date: 2024-10-21 07:22:16
Also in: lkml
Subsystem: networking drivers, stmmac ethernet driver, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds

Revision v1 of 2 in this series.

Revisions (2)
  1. v2 [diff vs current]
  2. v1 current
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 <redacted>
---
 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
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