On Mon, Mar 18, 2019 at 08:35:26AM -0400, Jeff Hostetler wrote: > > > On 3/16/2019 6:47 AM, tboegi@xxxxxx wrote: > > From: Torsten Bögershausen <tboegi@xxxxxx> > > > > Some compilers don't allow NULL to be passed for a va_list. > > Use va_list instead. > > > > Signed-off-by: Torsten Bögershausen <tboegi@xxxxxx> > > Thanks for the fixup. > > For future reference, can you elaborate on which compiler > and/or platform has the problem ? > > Jeff It is on a Raspberry PI: gcc (Raspbian 6.3.0-18+rpi1+deb9u1) 6.3.0 20170516 trace2/tr2_tgt_event.c:193:18: error: invalid operands to binary && (have ‘int’ and ‘va_list {aka __va_list}’) if (fmt && *fmt && ap) { ~~~~~~~~~~~ ^~ (And I couldn't find any hints that va_list and pointers can be mixed, and no hints that they can't either)