The commit message from lwip submodule:
Remove inline from non-static functions
It seems that the compiler/CCS is somehow buggy when it sees non-static
inline functions, because the build is successful on desktop computers
but not buildbot's server. This change solves the buildbot failure. The
error message was:
-Subproject commit dc20b254c5d4642bb4215750c58aa445daf204fa
+Subproject commit 0c177f2548e1608953ad55e17d0d7fbdd7aa4e18