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Diffstat (limited to 'net/ipv4/tcp_dctcp.h')
-rw-r--r--net/ipv4/tcp_dctcp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_dctcp.h b/net/ipv4/tcp_dctcp.h
index 4b0259111d81..f13f8d770576 100644
--- a/net/ipv4/tcp_dctcp.h
+++ b/net/ipv4/tcp_dctcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TCP_DCTCP_H
#define _TCP_DCTCP_H