[PATCH RFC 01/21] NFSD: Add SPDK header for fs/nfsd/trace.c

[Chuck Lever <chuck.lever@xxxxxxxxxx>]

Clean up.

The file was contributed in 2014 by Christoph Helwig in commit
31ef83dc0538 ("nfsd: add trace events").

Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
 fs/nfsd/trace.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfsd/trace.c b/fs/nfsd/trace.c
index 90967466a1e5..f008b95ceec2 100644
--- a/fs/nfsd/trace.c
+++ b/fs/nfsd/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #define CREATE_TRACE_POINTS
 #include "trace.h"