[PATCH v3 1/2] powerpc: split ftrace bits into a separate file

[Steven Rostedt]

On Thu, 02 Mar 2017 20:38:53 +1100
Michael Ellerman <mpe at ellerman.id.au> wrote:

> Steven Rostedt <rostedt at goodmis.org> writes:
> 
> > On Tue, 28 Feb 2017 15:04:15 +1100
> > Michael Ellerman <mpe at ellerman.id.au> wrote:
> >
> > kernel/trace/ftrace.c more obvious.  
> >> 
> >> I don't know if it's really worth keeping the names the same across
> >> arches, especially as we already have:
> >> 
> >>   arch/arm64/kernel/entry-ftrace.S
> >>   arch/arm/kernel/entry-ftrace.S
> >>   arch/blackfin/kernel/ftrace-entry.S
> >>   arch/metag/kernel/ftrace_stub.S
> >> 
> >> But we can rename it if you feel strongly about it.  
> >
> > Hmm, perhaps "entry-ftrace.S" would be the better name. I never liked
> > the "mcount.S" name.  
> 
> Except what does the "entry" part mean?
> 
> Traditionally entry.S has been for the code that "enters" the kernel,
> ie. from userspace or elsewhere. But that's not the case with any of the
> ftrace code, it's kernel code called from the kernel. So using "entry"
> is a bit wrong IMHO.
> 
> So if we drop that we're left with ftrace.S - which seems perfect to me.

Yeah, I agree. But then there's the problem that ftrace.c and ftrace.S
will get the same ftrace.o. Maybe make it ftrace-hook.S ?

-- Steve