Hi Steve, On Mon, Feb 12, 2018 at 12:23:54PM -0500, Steven Rostedt wrote: > On Mon, 12 Feb 2018 11:15:34 +0900 > Namhyung Kim <namhy...@kernel.org> wrote: > > > > It should have been: > > > > > > return process_redirects(arg, val, buf); > > > > But I think you need to consider data type of the arg when > > dereferencing the last redirect. > > What for?
Otherwise it'd return a value of unsigned long type regardless of the type of the arg. I thought it should have same logic as indirect args. But it seems not matter since record_entry() would copy it only for the arg->size. Then type check in __get_arg() might be unnecessary too. > > Also this code has also changed. I haven't posted new patches but my > latest is in my git tree in the branch ftrace/dynamic-ftrace-events. I've checked it. And it seems to have another problem for indirect (but not redirect) arrays and strings. Like 'x32 foo'? Thanks, Namhyung