Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts (or adjacent changes of note).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

include/uapi/linux/stddef.h

@@ -29,6 +29,11 @@
 		struct TAG { MEMBERS } ATTRS NAME; \
 	}
 
+#ifdef __cplusplus
+/* sizeof(struct{}) is 1 in C++, not 0, can't use C version of the macro. */
+#define __DECLARE_FLEX_ARRAY(T, member)	\
+	T member[0]
+#else
 /**
  * __DECLARE_FLEX_ARRAY() - Declare a flexible array usable in a union
  *
@@ -49,3 +54,5 @@
 #ifndef __counted_by
 #define __counted_by(m)
 #endif
+
+#endif /* _UAPI_LINUX_STDDEF_H */