Add extern to *_main global variable declarations in header files.
- Global variables declared in header files without
the use of the 'extern' keword will result in multiple
instances of the variable to be created by the compiler
-- one for each different source file in which the
the header file is included. This results in wasted
memory allocated in the BSS segments as well as
potentially introducing bugs in the application.
Change-Id: I6ef1790b60a0bd9dd3994f8510723decf258b0cc
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
diff --git a/src/vnet/snap/snap.h b/src/vnet/snap/snap.h
index 7cd453e..08c3a8b 100644
--- a/src/vnet/snap/snap.h
+++ b/src/vnet/snap/snap.h
@@ -165,7 +165,7 @@
return p ? vec_elt_at_index (sm->protocols, p[0]) : 0;
}
-snap_main_t snap_main;
+extern snap_main_t snap_main;
/* Register given node index to take input for given snap type. */
void