Hi Stefan, Thanks for information and creating a ticket.
Did quick check on a PC machine with 4.20 rc. However, not seeing same warning. Look need time to repro and get details on same build & target you are using. Regards, Woojung > -----Original Message----- > From: Stefan Wahren <stefan.wah...@i2se.com> > Sent: Tuesday, January 1, 2019 4:32 PM > To: Woojung Huh - C21699 <woojung....@microchip.com> > Cc: e...@anholt.net; UNGLinuxDriver <unglinuxdri...@microchip.com>; > marc.zyng...@arm.com; > netdev@vger.kernel.org; linux-arm-ker...@lists.infradead.org > Subject: RE: lan78xx: WARNING: irq 79 handler enabled interrupts > > Hi Woojung, > > > woojung....@microchip.com hat am 30. Dezember 2018 um 04:25 geschrieben: > > > > > > HI Marc & Stephen, > > > > Most of engineers are out until New Year's Day. > > thanks. I didn't expect a reply that fast. > > > > > LAN78xx driver uses irq_domain for phy interrupt, but smsc95xx uses polling. > > Need to check flow again, you can try that comment out > > "lan78xx_setup_irq_domain" to > > make dev->domain_data.phyirq = 0 which forces PHY polling. > > I tested your suggestion with multi_v7_defconfig (32 bit) and arm64/defconfig. > The warning disappeared and Ethernet is still working. > > Only the old issue that we can't receive until a first packet has been send > out reappear. But this should > be manageable. > > > > > Can you share if this is filed on RPI forum? > > I didn't submit this to the raspberrypi.org forum / github. They mostly care > about the next LTS release > 4.19 and not really about arm64. > > But an Arch Linux user (aarch64 using Mainline kernel) already discovered > this issue: > https://archlinuxarm.org/forum/viewtopic.php?f=65&t=13302 > > > Also, it would be appreciated if you can create a ticket on Microchip site > > at > > https://www.microchip.com/technical-support/hot-topics > > Done > > Best regards > Stefan > > > > > Best Regards, > > Woojung > >
