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-rw-r--r--include/uapi/linux/stm.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/linux/stm.h b/include/uapi/linux/stm.h
index 29c89be72275..7bac318b4440 100644
--- a/include/uapi/linux/stm.h
+++ b/include/uapi/linux/stm.h
@@ -12,6 +12,10 @@
#include <linux/types.h>
+/* Maximum allowed master and channel values */
+#define STP_MASTER_MAX 0xffff
+#define STP_CHANNEL_MAX 0xffff
+
/**
* struct stp_policy_id - identification for the STP policy
* @size: size of the structure including real id[] length