RE: [PATCH net] hyperv: Fix a compiler warning in netvsc_send()

[Haiyang Zhang]

> -----Original Message-----
> From: David Miller [mailto:davem@xxxxxxxxxxxxx]
> Sent: Friday, April 19, 2013 4:50 PM
> To: Haiyang Zhang
> Cc: netdev@xxxxxxxxxxxxxxx; KY Srinivasan; olaf@xxxxxxxxx;
> jasowang@xxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> devel@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [PATCH net] hyperv: Fix a compiler warning in netvsc_send()
> 
> From: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> Date: Tue, 16 Apr 2013 15:25:50 -0700
> 
> > Fixed: warning: cast from pointer to integer of different size
> >
> > The Hyper-V hosts always use 64 bit request id. The guests can have 32
> > or 64 bit pointers which equal to the ulong type size. So we cast it to ulong
> type.
> > And, assigning 32bit integer to 64 bit variable works fine.
> >
> > The VMBus returns the same id in the completion packet. But the value
> > has no effect on the host side.
> >
> > Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx>
> > Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> > Reviewed-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> 
> Such build warning fixes are not appropriate for 'net' at this time, and this
> patch does not apply to 'net-next', so I'm dropping this entirely.

OK. I will re-submit it to net-next after the recent patch causing the warning
is merged into the net-next tree.

Thanks,
- Haiyang

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