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net: stmmac: dwmac-qcom-ethqos: fix a regression on EMAC < 3

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We must not assign plat_dat->dwmac4_addrs unconditionally as for
structures which don't set them, this will result in the core driver
using zeroes everywhere and breaking the driver for older HW. On EMAC < 2
the address should remain NULL.

Fixes: b68376191c ("net: stmmac: dwmac-qcom-ethqos: Add EMAC3 support")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bartosz Golaszewski 2023-06-02 21:04:55 +02:00 committed by David S. Miller
parent d753693101
commit 9bc0097347
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
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@ -644,7 +644,8 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
plat_dat->fix_mac_speed = ethqos_fix_mac_speed;
plat_dat->dump_debug_regs = rgmii_dump;
plat_dat->has_gmac4 = 1;
plat_dat->dwmac4_addrs = &data->dwmac4_addrs;
if (ethqos->has_emac3)
plat_dat->dwmac4_addrs = &data->dwmac4_addrs;
plat_dat->pmt = 1;
plat_dat->tso_en = of_property_read_bool(np, "snps,tso");
if (of_device_is_compatible(np, "qcom,qcs404-ethqos"))