On Fri, 20 Oct 2023 09:03:59 -0600 Jeffrey Hugo <quic_jhugo@xxxxxxxxxxx> wrote: > > diff --git a/drivers/bus/mhi/host/init.c b/drivers/bus/mhi/host/init.c > > index f78aefd2d7a3..3afa90a204fd 100644 > > --- a/drivers/bus/mhi/host/init.c > > +++ b/drivers/bus/mhi/host/init.c > > @@ -20,6 +20,9 @@ > > #include <linux/wait.h> > > #include "internal.h" > > > > +#define CREATE_TRACE_POINTS > > +#include <trace/events/mhi_host.h> > > This feels redundant to me. A few lines ago we included internal.h, and > internal.h includes trace/events/mhi_host.h It's not redundant. The #define CREATE_TRACE_POINTS enables the magic of creating the tracepoints and trace events via the TRACE_EVENT() macro. It should never be done in a header file, only in .c code! The header file include of trace headers are used for having access to the declarations of the functions. That is (trace_*()) in the code. -- Steve