boards/Board.mk: Add support to pass dependency paths. boards/arm/cxd56xx/common/Makefile: Add correct dependency paths for board/ and src/ subdirectories.

boards/Board.mk

@@ -121,12 +121,12 @@ endif
 
 .depend: Makefile $(SRCS) $(CXXSRCS)
 ifneq ($(ZDSVERSION),)
-	$(Q) $(MKDEP) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) $(MKDEP) $(DEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
 else
-	$(Q) $(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) $(MKDEP) $(DEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
 endif
 ifneq ($(CXXSRCS),)
-	$(Q) $(MKDEP) "$(CXX)" -- $(CXXFLAGS) -- $(CXXSRCS) >>Make.dep
+	$(Q) $(MKDEP) $(DEPPATH) "$(CXX)" -- $(CXXFLAGS) -- $(CXXSRCS) >>Make.dep
 endif
 	$(Q) touch $@
 

boards/arm/cxd56xx/common/Makefile

@@ -1,7 +1,7 @@
 ############################################################################
-# boards/arm/cxd56x/spresense/src/Makefile
+# boards/arm/cxd56x/common/Makefile
 #
-#   Copyright 2018 Sony Semiconductor Solutions Corporation
+#   Copyright 2019 Sony Semiconductor Solutions Corporation
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -37,4 +37,7 @@
 include board$(DELIM)Make.defs
 include src$(DELIM)Make.defs
 
+DEPPATH += --dep-path board
+DEPPATH += --dep-path src
+
 include $(TOPDIR)/boards/Board.mk

include/nuttx/net/net.h

@@ -213,6 +213,8 @@ struct socket_conn_s
    */
 
   FAR struct devif_callback_s *list;
+
+  /* Connection-specific content may follow */
 };
 
 /* This is the internal representation of a socket reference by a file