From 29064b88466ee725613db16d8c05b0ec5443a309 Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Mon, 11 Feb 2013 14:39:19 +0000 Subject: ARM: bL_switcher/trace: Add kernel trace trigger interface This patch exports a bL_switcher_trace_trigger() function to provide a means for drivers using the trace events to get the current status when starting a trace session. Calling this function is equivalent to pinging the trace_trigger file in sysfs. Signed-off-by: Dave Martin --- arch/arm/include/asm/bL_switcher.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/arm/include/asm/bL_switcher.h') diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h index 7d1cce8b8a0d..8ada5a885c70 100644 --- a/arch/arm/include/asm/bL_switcher.h +++ b/arch/arm/include/asm/bL_switcher.h @@ -54,6 +54,8 @@ int bL_switcher_unregister_notifier(struct notifier_block *nb); bool bL_switcher_get_enabled(void); void bL_switcher_put_enabled(void); +int bL_switcher_trace_trigger(void); + #else static inline int bL_switcher_register_notifier(struct notifier_block *nb) { @@ -67,6 +69,7 @@ static inline int bL_switcher_unregister_notifier(struct notifier_block *nb) static inline bool bL_switcher_get_enabled(void) { return false; } static inline void bL_switcher_put_enabled(void) { } +static inline int bL_switcher_trace_trigger(void) { return 0; } #endif /* CONFIG_BL_SWITCHER */ #endif -- cgit v1.2.3-59-g8ed1b