On Tue, Mar 28, 2017 at 04:15:57PM +0800, Shiyao Ma wrote: > Hi, > I saw this function invocation, > trace_kfree_skb(skb, __builtin_return_address(0)); > > so I grepped the source for "trace_kfree_skb", but I found no where it's defined. > > Where's the definition for it? > that is a generated functions so you do not find them in the kernel sources directly - but you can find the generation points in the case of trace_kfree_skb thats in include/trace/events/skb.h:TRACE_EVENT(kfree_skb,... -> DECLARE_TRACE(...) and then exported in net/core/net-traces.c:EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb); the detailed description of TRACE_EVENT can be found in include/linux/tracepoint.h thx! hofrat _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
