Allow the unwind_user symbol to be used by GPL modules, for instance
LTTng.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Indu Bhagat <indu.bhagat@oracle.com>
Cc: "Jose E. Marchesi" <jemarch@gnu.org>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Jens Remus <jremus@linux.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 kernel/unwind/user.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/unwind/user.c b/kernel/unwind/user.c
index 18d83efc876e..7d7dfb8178d0 100644
--- a/kernel/unwind/user.c
+++ b/kernel/unwind/user.c
@@ -189,3 +189,4 @@ int unwind_user(struct unwind_stacktrace *trace, unsigned int max_entries)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(unwind_user);
-- 
2.43.0