1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/sfc/enum.h b/drivers/net/sfc/enum.h
index 0c2e41ce8b4a..60cbc6e1e66b 100644
--- a/drivers/net/sfc/enum.h
+++ b/drivers/net/sfc/enum.h
@@ -58,6 +58,9 @@ extern const char *efx_loopback_mode_names[];
 #define LOOPBACK_INTERNAL(_efx)                         \
         (!!(LOOPBACKS_INTERNAL & LOOPBACK_MASK(_efx)))
 
+#define LOOPBACK_CHANGED(_from, _to, _mask)                             \
+        (!!((LOOPBACK_MASK(_from) ^ LOOPBACK_MASK(_to)) & (_mask)))
+
 #define LOOPBACK_OUT_OF(_from, _to, _mask)                              \
         ((LOOPBACK_MASK(_from) & (_mask)) && !(LOOPBACK_MASK(_to) & (_mask)))