This evaluates _head and _elem twice each, or three times if you count
the BUG_ON.
Smaller point: why bother obfuscating the parameter names? You will
need to do that for locals in macros but parameters should cause no
name conflicts.
-- Daniel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/