On Tue, Feb 23, 2010 at 10:36:08AM -0800, Daniel Walker wrote:
> On Fri, 2010-01-29 at 11:11 +0000, Catalin Marinas wrote:
> > On Thu, 2010-01-28 at 22:59 +0000, Daniel Walker wrote:
> > > diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
> > > index 10e0680..bea3e75 100644
> > > --- a/arch/arm/mm/fault.c
> > > +++ b/arch/arm/mm/fault.c
> > [...]
> > > static struct fsr_info {
> > > int (*fn)(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
> > > int sig;
> > > @@ -479,7 +513,7 @@ static struct fsr_info {
> > > { do_bad, SIGBUS, 0, "unknown 19" },
> > > { do_bad, SIGBUS, 0, "lock abort" }, /* xscale */
> > > { do_bad, SIGBUS, 0, "unknown 21" },
> > > - { do_bad, SIGBUS, BUS_OBJERR, "imprecise external abort" }, /* xscale */
> > > + { do_imprecise_ext, SIGBUS, BUS_OBJERR, "imprecise external abort" }, /* xscale */
> >
> > Can you not use hook_fault_code() and move the do_imprecise_ext() to a
> > platform-specific file (under arch/arm/mach-* maybe)?
> >
>
> How do you mean? I'm not sure how we would move this into
> arch/arm/mach- ..
Err, exactly as Catalin says. Use hook_fault_code() to hook into the
fault table at run time, just like platforms which have to handle
imprecise exceptions on PCI and the alignment fault handler do.
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