r8169: fix data corruption issue on RTL8402

Petr reported that after resume from suspend RTL8402 partially
truncates incoming packets, and re-initializing register RxConfig
before the actual chip re-initialization sequence is needed to avoid
the issue.

Reported-by: Petr Tesarik <ptesarik@suse.cz>
Proposed-by: Petr Tesarik <ptesarik@suse.cz>
Tested-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 4ae1a6f..256bc48 100644 (file)
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -4854,6 +4854,10 @@ static int __maybe_unused rtl8169_resume(struct device *device)
        if (!device_may_wakeup(tp_to_dev(tp)))
                clk_prepare_enable(tp->clk);
 
+       /* Reportedly at least Asus X453MA truncates packets otherwise */
+       if (tp->mac_version == RTL_GIGA_MAC_VER_37)
+               rtl_init_rxcfg(tp);
+
        return rtl8169_net_resume(tp);
 }