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-rw-r--r--arch/um/drivers/line.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 5cff6536a843..fac058b49282 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -8,6 +8,7 @@
#include "chan_kern.h"
#include "irq_kern.h"
#include "irq_user.h"
+#include "kern_util.h"
#include "os.h"
#define LINE_BUFSIZE 4096