On Fri, 22 Nov 2019 16:06:29 -0800, Jakub Kicinski wrote: > > -struct tx_sw_desc; > > +struct ulptx_sgl; > > From this patch alone the forward declaration of struct ulptx_sgl; > appears unnecessary or a left over from some previous version of the > code? Okay, taking that back, looks like compiler treats use of struct type in another struct as a forward declaration. Interesting.