next-20170720 build: 1 failures 4 warnings (next-20170720)

[Mark Brown]

arm-allmodconfig
../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1685:8: error: unknown type name 'irqreturn_t'
../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1694:9: error: 'IRQ_HANDLED' undeclared (first use in this function)
../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1697:8: error: unknown type name 'irqreturn_t'
../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1706:9: error: 'IRQ_HANDLED' undeclared (first use in this function)
../drivers/net/ethernet/mediatek/mtk_eth_soc.c:2475:8: error: implicit declaration of function 'devm_request_irq' [-Werror=implicit-function-declaration]

There's no obvious relevant change in the driver, some other header
change will have broken the implicit inclusion it's relying on. I just
sent a patch.