[PATCH] tracing: Restore accidentally removed SPDX tag

[Marc Zyngier]

Restore the SPDX tag that was accidentally dropped.

Fixes: 7e4b6c94300e3 ("tracing: add more symbols to whitelist")
Reported-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxxxx>
Cc: Vincent Donnefort <vdonnefort@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 kernel/trace/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index 26f3d61e900d1..c5e14ffd36ee2 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -1,4 +1,4 @@
-
+# SPDX-License-Identifier: GPL-2.0
 
 # Do not instrument the tracer itself:
 
-- 
2.47.3