Index: coreboot-4.5/util/cbfstool/lz4/lib/lz4frame.c
===================================================================
--- coreboot-4.5.orig/util/cbfstool/lz4/lib/lz4frame.c
+++ coreboot-4.5/util/cbfstool/lz4/lib/lz4frame.c
@@ -1091,7 +1091,7 @@ size_t LZ4F_decompress(LZ4F_decompressio
                 dctxPtr->tmpInTarget = minFHSize;   /* minimum to attempt decode */
                 dctxPtr->dStage = dstage_storeHeader;
             }
-
+            __attribute__ ((fallthrough));
         case dstage_storeHeader:
             {
                 size_t sizeToCopy = dctxPtr->tmpInTarget - dctxPtr->tmpInSize;