lib/flow: Use BUILD_MESSAGE() to warn if BUILD_SEQ is not updated

Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>

diff --git a/lib/flow.c b/lib/flow.c
index 1c1ce27..b9f1820 100644 (file)
--- a/lib/flow.c
+++ b/lib/flow.c
@@ -123,6 +123,9 @@ struct mf_ctx {
 
 #if (FLOW_WC_SEQ != 27)
 #define MINIFLOW_ASSERT(X) ovs_assert(X)
+BUILD_MESSAGE("FLOW_WC_SEQ changed: miniflow_extract() will have runtime "
+               "assertions enabled. Consider updating FLOW_WC_SEQ after "
+               "testing")
 #else
 #define MINIFLOW_ASSERT(X)
 #endif