On Sat, Jun 22, 2019 at 11:50:10PM +0900, Katsuhiro Suzuki wrote: > Hello, Hi Katsuhiro Please also report this to netdev, and the stmmac maintainers. ./scripts/get_maintainer.pl -f drivers/net/ethernet/stmicro/stmmac/stmmac_main.c Giuseppe Cavallaro <peppe.cavallaro@xxxxxx> (supporter:STMMAC ETHERNET DRIVER) Alexandre Torgue <alexandre.torgue@xxxxxx> (supporter:STMMAC ETHERNET DRIVER) Jose Abreu <joabreu@xxxxxxxxxxxx> (supporter:STMMAC ETHERNET DRIVER) "David S. Miller" <davem@xxxxxxxxxxxxx> (odd fixer:NETWORKING DRIVERS) Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx> (maintainer:ARM/STM32 ARCHITECTURE) netdev@xxxxxxxxxxxxxxx (open list:STMMAC ETHERNET DRIVER) linux-stm32@xxxxxxxxxxxxxxxxxxxxxxxxxxxx (moderated list:ARM/STM32 ARCHITECTURE) linux-arm-kernel@xxxxxxxxxxxxxxxxxxx (moderated list:ARM/STM32 ARCHITECTURE) linux-kernel@xxxxxxxxxxxxxxx (open list) > I have not bisect commit of root cause yet... Is it better to bisect > and find problem instead of sending this patch? My guess is that it is one of these three which broken it: 74371272f97f net: stmmac: Convert to phylink and remove phylib logic eeef2f6b9f6e net: stmmac: Start adding phylink support 9ad372fc5aaf net: stmmac: Prepare to convert to phylink Andrew