These warnings fix a class of warnings that I saw during CI checks for macOS sim builds. For example: devif/devif_callback.c:111:49: warning: for loop has empty body [-Wempty-body] prev = curr, curr = curr->nxtdev); ^ devif/devif_callback.c:111:49: note: put the semicolon on a separate line to silence this warning I did not put the semi-colon on a separate line, but used braces.