Hi Mark, Kernel build failed on tree: git://git.infradead.org/users/kmpark/linux-samsung extcon-for-next-testing head: a2bac85a3c5293fb038baa2ac03a538ef3feb4b8 commit: 86a7fea97f8d9ed29041acd102915b33fc0d1423 [7/27] mfd: wm5102: Build system hookup config: m68k-allmodconfig (attached as .config) Build errors: ERROR: "irq_set_chip_and_handler_name" [drivers/mfd/arizona-irq.ko] undefined! ERROR: "wm5102_patch" [drivers/mfd/arizona-core.ko] undefined! ERROR: "arizona_irq_init" [drivers/mfd/arizona-core.ko] undefined! ERROR: "arizona_irq_exit" [drivers/mfd/arizona-core.ko] undefined! --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation