Re: [PATCH v3 3/6] KVM: MMU: make return value of mmio page fault handler more readable

[Takuya Yoshikawa <takuya.yoshikawa@gmail.com>]

On Mon, 10 Jun 2013 10:57:50 +0300
Gleb Natapov <gleb@redhat.com> wrote:

> On Fri, Jun 07, 2013 at 04:51:25PM +0800, Xiao Guangrong wrote:

> > +
> > +/*
> > + * Return values of handle_mmio_page_fault_common:
> > + * RET_MMIO_PF_EMULATE: it is a real mmio page fault, emulate the instruction
> > + *			 directly.
> > + * RET_MMIO_PF_RETRY: let CPU fault again on the address.
> > + * RET_MMIO_PF_BUG: bug is detected.
> > + */
> > +enum {
> > +	RET_MMIO_PF_EMULATE = 1,
> > +	RET_MMIO_PF_RETRY = 0,
> > +	RET_MMIO_PF_BUG = -1
> > +};
> I would order them from -1 to 1 and rename RET_MMIO_PF_BUG to
> RET_MMIO_PF_ERROR, but no need to resend just for that.

Why not just let compilers select the values? -- It's an enum.
Any reason to make it start from -1?

	Takuya