From 92e5aae457787d0bc6b255200d2fb116edf69794 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Fri, 18 Aug 2017 15:15:51 -0700 Subject: kernel/watchdog: fix Kconfig constraints for perf hardlockup watchdog Commit 05a4a9527931 ("kernel/watchdog: split up config options") lost the perf-based hardlockup detector's dependency on PERF_EVENTS, which can result in broken builds with some powerpc configurations. Restore the dependency. Add it in for x86 too, despite x86 always selecting PERF_EVENTS it seems reasonable to make the dependency explicit. Link: http://lkml.kernel.org/r/20170810114452.6673-1-npiggin@gmail.com Fixes: 05a4a9527931 ("kernel/watchdog: split up config options") Signed-off-by: Nicholas Piggin Acked-by: Don Zickus Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/Kconfig') diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 36f858c37ca7..81b0031f909f 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -199,7 +199,7 @@ config PPC select HAVE_OPTPROBES if PPC64 select HAVE_PERF_EVENTS select HAVE_PERF_EVENTS_NMI if PPC64 - select HAVE_HARDLOCKUP_DETECTOR_PERF if HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH + select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP select HAVE_RCU_TABLE_FREE if SMP -- cgit v1.2.3