From: Frederic Weisbecker Date: Wed, 22 Oct 2008 17:26:23 +0000 (+0200) Subject: tracing/ftrace: make boot tracer select the sched_switch tracer X-Git-Tag: firefly_0821_release~17071^2~3 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ea31e72d753e5817a97de552f152d0cb55c7defc;p=firefly-linux-kernel-4.4.55.git tracing/ftrace: make boot tracer select the sched_switch tracer Impact: build fix If the boot tracer is selected but not the sched_switch, there will be a build failure: kernel/built-in.o: In function `boot_trace_init': trace_boot.c:(.text+0x5ee38): undefined reference to `sched_switch_trace' kernel/built-in.o: In function `disable_boot_trace': (.text+0x5eee1): undefined reference to `tracing_stop_cmdline_record' kernel/built-in.o: In function `enable_boot_trace': (.text+0x5ef11): undefined reference to `tracing_start_cmdline_record' This patch fixes it. Signed-off-by: Frederic Weisbecker Signed-off-by: Ingo Molnar --- diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index bc535cb91de9..e0cea282e0c5 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -123,6 +123,7 @@ config BOOT_TRACER bool "Trace boot initcalls" depends on DEBUG_KERNEL select TRACING + select CONTEXT_SWITCH_TRACER help This tracer helps developers to optimize boot times: it records the timings of the initcalls and traces key events and the identity