On Thu, Feb 2, 2023 at 4:54 PM Mark Rutland <mark.rutland@xxxxxxx> wrote: > > On Wed, Feb 01, 2023 at 05:34:17PM +0100, Florent Revest wrote: > > Direct called trampolines can be called in two ways: > > - either from the ftrace callsite. In this case, they do not access any > > struct ftrace_regs nor pt_regs > > - Or, if a ftrace ops is also attached, from the end of a ftrace > > trampoline. In this case, the call_direct_funcs ops is in charge of > > setting the direct call trampoline's address in a struct ftrace_regs > > > > Since "ftrace: pass fregs to arch_ftrace_set_direct_caller()", the later > > case no longer requires a full pt_regs. > > Minor nit, but could we please have the commit ID, e.g. > > | Since commit: > | > | 9705bc70960459ae ("ftrace: pass fregs to arch_ftrace_set_direct_caller()") > | > | The latter case no longer requires a full pt_regs. Sure thing, will do!