> -----Original Message-----
> From: Dan Carpenter <[email protected]>
> Sent: Thursday, April 26, 2018 2:32 PM
> To: KY Srinivasan <[email protected]>
> Cc: [email protected]; [email protected]; linux-
> [email protected]; [email protected]; [email protected];
> [email protected]; [email protected]; [email protected];
> [email protected]; Stephen Hemminger <[email protected]>; Michael
> Kelley (EOSG) <[email protected]>; [email protected]
> Subject: Re: [PATCH 2/5] X86: Hyper-V: Enable IPI enlightenments
> 
> On Wed, Apr 25, 2018 at 11:12:47AM -0700, [email protected] wrote:
> > +/*
> > + * IPI implementation on Hyper-V.
> > + */
> > +
> > +static int __send_ipi_mask(const struct cpumask *mask, int vector)
> > +{
> > +   int cur_cpu, vcpu;
> > +   struct ipi_arg_non_ex **arg;
> > +   struct ipi_arg_non_ex *ipi_arg;
> > +   int ret = 1;
> 
> Not specifically related to this patch, but hv code sometimes returns 1
> on error or U64_MAX.  It's slightly magical.  Maybe
> HV_STATUS_INVALID_HYPERCALL_INPUT (3) would be more appropriate?
> Or we
> could make a new more generic error code:
> 
> #define HV_STATUS_INVALID        1

Good point. We will look at cleaning this up.

Regards,

K. Y
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