* [PATCH] ftrace: mark get_lock_parent_ip() __always_inline
@ 2023-03-27 17:36 John Keeping
0 siblings, 0 replies; only message in thread
From: John Keeping @ 2023-03-27 17:36 UTC (permalink / raw)
To: linux-trace-kernel
Cc: John Keeping, Steven Rostedt, Masami Hiramatsu, Mark Rutland,
linux-kernel
If the compiler decides not to inline this function then preemption
tracing will always show an IP inside the preemption disabling path and
never the function actually calling preempt_{enable,disable}.
Signed-off-by: John Keeping <john@metanate.com>
---
include/linux/ftrace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 327046f1278d..6954e4ed5bbf 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -964,7 +964,7 @@ static inline void __ftrace_enabled_restore(int enabled)
#define CALLER_ADDR5 ((unsigned long)ftrace_return_address(5))
#define CALLER_ADDR6 ((unsigned long)ftrace_return_address(6))
-static inline unsigned long get_lock_parent_ip(void)
+static __always_inline unsigned long get_lock_parent_ip(void)
{
unsigned long addr = CALLER_ADDR0;
--
2.40.0
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