[RFC PATCH 4/9] stacktrace: export-GPL stack_trace_save_user

[Mathieu Desnoyers]

The stack_trace_save symbol is already exported GPL. Add a GPL export
for the stack_trace_save_user symbol as well.

This is useful for tracers implemented as kernel modules.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
 kernel/stacktrace.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 2af66e449aa6..c8c48444bd39 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -240,6 +240,7 @@ unsigned int stack_trace_save_user(unsigned long *store, unsigned int size)
 
 	return c.len;
 }
+EXPORT_SYMBOL_GPL(stack_trace_save_user);
 #endif
 
 #else /* CONFIG_ARCH_STACKWALK */
-- 
2.17.1