Re: [PATCH net-next] tcp: add tracepoint trace_tcp_retransmit_synack()

On Thu, Oct 26, 2017 at 4:50 PM, Song Liu [off-list ref] wrote:

In this case, we are putting CONFIG_IPV6 in TRACE_EVENT macro, which generates
warnings like:

./include/trace/events/tcp.h:274:1: error: directive in argument list
./include/trace/events/tcp.h:281:1: error: directive in argument list

Seems these warning cannot be easily avoided. This is also the same pattern we
have been using in include/trace/events/tcp.h.

Hmm, we use the same so why it only complains about this one?

Any suggestions on how shall we proceed from here?

I think this warning is harmless, so perhaps not worthy time to
shut it up, unless sparse provides a simple way to do so.