diff options
| author |   Jose Abreu <Jose.Abreu@synopsys.com> | 2019-08-06 15:16:17 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-08-06 12:26:11 -0700 |
| commit | e8df7e8c233a18d2704e37ecff47583b494789d3 (patch) | |
| tree | e623ad933f709489efdcc5a6c6d740849acf6824 /drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | |
| parent | net: stmmac: xgmac: Fix XGMAC selftests (diff) | |
| download | linux-dev-e8df7e8c233a18d2704e37ecff47583b494789d3.tar.xz linux-dev-e8df7e8c233a18d2704e37ecff47583b494789d3.zip | |
net: stmmac: Fix issues when number of Queues >= 4
When queues >= 4 we use different registers but we were not subtracting
the offset of 4. Fix this.
Found out by Coverity.
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c index 01c2e2d83e76..fc9954e4a772 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c @@ -85,6 +85,8 @@ static void dwmac4_rx_queue_priority(struct mac_device_info *hw, u32 value; base_register = (queue < 4) ? GMAC_RXQ_CTRL2 : GMAC_RXQ_CTRL3; + if (queue >= 4) + queue -= 4; value = readl(ioaddr + base_register); @@ -102,6 +104,8 @@ static void dwmac4_tx_queue_priority(struct mac_device_info *hw, u32 value; base_register = (queue < 4) ? GMAC_TXQ_PRTY_MAP0 : GMAC_TXQ_PRTY_MAP1; + if (queue >= 4) + queue -= 4; value = readl(ioaddr + base_register); |