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-rw-r--r--net/ipv4/tcp_input.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 23ca3663d1e8..68d4057cba00 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -61,6 +61,8 @@
* Pasi Sarolahti: F-RTO for dealing with spurious RTOs
*/
+#define pr_fmt(fmt) "TCP: " fmt
+
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/module.h>