Hi Masahiro, I love your patch! Yet something to improve: [auto build test ERROR on masahiroy/kconfig] [also build test ERROR on v4.20-rc4 next-20181123] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Masahiro-Yamada/kconfig-fix-reverse-dependency-with-tristate-if-conditional/20181126-152716 base: https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git kconfig config: i386-randconfig-s3-201847 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): arch/x86/kernel/dumpstack.o: In function `touch_nmi_watchdog': >> include/linux/nmi.h:135: undefined reference to `touch_softlockup_watchdog' arch/x86/kernel/nmi.o: In function `touch_nmi_watchdog': >> include/linux/nmi.h:135: undefined reference to `touch_softlockup_watchdog' arch/x86/kernel/kvm.o: In function `kvm_guest_init': >> arch/x86/kernel/kvm.c:664: undefined reference to `hardlockup_detector_disable' arch/x86/kernel/pvclock.o: In function `pvclock_touch_watchdogs': >> arch/x86/kernel/pvclock.c:52: undefined reference to `touch_softlockup_watchdog_sync' kernel/panic.o: In function `touch_nmi_watchdog': >> include/linux/nmi.h:135: undefined reference to `touch_softlockup_watchdog' >> include/linux/nmi.h:135: undefined reference to `touch_softlockup_watchdog' >> include/linux/nmi.h:135: undefined reference to `touch_softlockup_watchdog' kernel/panic.o: In function `panic': >> kernel/panic.c:300: undefined reference to `touch_softlockup_watchdog' kernel/workqueue.o: In function `touch_nmi_watchdog': >> include/linux/nmi.h:135: undefined reference to `touch_softlockup_watchdog' kernel/workqueue.o:include/linux/nmi.h:135: more undefined references to `touch_softlockup_watchdog' follow kernel/sched/core.o: In function `show_state_filter': >> kernel/sched/core.c:5341: undefined reference to `touch_all_softlockup_watchdogs' kernel/power/hibernate.o: In function `resume_target_kernel': >> kernel/power/hibernate.c:480: undefined reference to `touch_softlockup_watchdog' kernel/power/snapshot.o: In function `rtree_next_node': >> kernel/power/snapshot.c:847: undefined reference to `touch_softlockup_watchdog' kernel/printk/printk.o: In function `touch_nmi_watchdog': >> include/linux/nmi.h:135: undefined reference to `touch_softlockup_watchdog' kernel/time/timekeeping.o: In function `timekeeping_resume': >> kernel/time/timekeeping.c:1731: undefined reference to `touch_softlockup_watchdog' kernel/time/timer_list.o: In function `touch_nmi_watchdog': >> include/linux/nmi.h:135: undefined reference to `touch_softlockup_watchdog' kernel/time/timer_list.o:include/linux/nmi.h:135: more undefined references to `touch_softlockup_watchdog' follow drivers/tty/serial/earlycon.o: In function `parse_options': >> drivers/tty/serial/earlycon.c:94: undefined reference to `uart_parse_earlycon' drivers/tty/serial/8250/8250_core.o: In function `univ8250_console_match': >> drivers/tty/serial/8250/8250_core.c:640: undefined reference to `uart_parse_earlycon' drivers/tty/serial/8250/8250_core.o: In function `serial8250_suspend': >> drivers/tty/serial/8250/8250_core.c:865: undefined reference to `uart_suspend_port' drivers/tty/serial/8250/8250_core.o: In function `serial8250_find_match_or_unused': >> drivers/tty/serial/8250/8250_core.c:916: undefined reference to `uart_match_port' drivers/tty/serial/8250/8250_core.o: In function `serial8250_register_8250_port': >> drivers/tty/serial/8250/8250_core.c:971: undefined reference to `uart_remove_one_port' vim +135 include/linux/nmi.h 6592ad2f Thomas Gleixner 2017-09-12 124 ^1da177e Linus Torvalds 2005-04-16 125 /** ^1da177e Linus Torvalds 2005-04-16 126 * touch_nmi_watchdog - restart NMI watchdog timeout. ^1da177e Linus Torvalds 2005-04-16 127 * ^1da177e Linus Torvalds 2005-04-16 128 * If the architecture supports the NMI watchdog, touch_nmi_watchdog() ^1da177e Linus Torvalds 2005-04-16 129 * may be used to reset the timeout - for code which intentionally ^1da177e Linus Torvalds 2005-04-16 130 * disables interrupts for a long time. This call is stateless. ^1da177e Linus Torvalds 2005-04-16 131 */ 5d0e600d Ingo Molnar 2007-02-13 132 static inline void touch_nmi_watchdog(void) 5d0e600d Ingo Molnar 2007-02-13 133 { f2e0cff8 Nicholas Piggin 2017-07-12 134 arch_touch_nmi_watchdog(); 5d0e600d Ingo Molnar 2007-02-13 @135 touch_softlockup_watchdog(); 5d0e600d Ingo Molnar 2007-02-13 136 } 6e7458a6 Ulrich Obergfell 2014-10-13 137 :::::: The code at line 135 was first introduced by commit :::::: 5d0e600d903caa09e790824cc5812f0d97113b23 [PATCH] x86: fix laptop bootup hang in init_acpi() :::::: TO: Ingo Molnar <mingo@xxxxxxx> :::::: CC: Andi Kleen <andi@xxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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