linux-kernel - RE: [PATCH net] hyperv: Fix a compiler warning in netvsc

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Date:	Fri, 19 Apr 2013 20:57:24 +0000
From:	Haiyang Zhang <haiyangz@...rosoft.com>
To:	David Miller <davem@...emloft.net>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	KY Srinivasan <kys@...rosoft.com>,
	"olaf@...fle.de" <olaf@...fle.de>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>
Subject: RE: [PATCH net] hyperv: Fix a compiler warning in netvsc_send()



> -----Original Message-----
> From: David Miller [mailto:davem@...emloft.net]
> Sent: Friday, April 19, 2013 4:50 PM
> To: Haiyang Zhang
> Cc: netdev@...r.kernel.org; KY Srinivasan; olaf@...fle.de;
> jasowang@...hat.com; linux-kernel@...r.kernel.org;
> devel@...uxdriverproject.org
> Subject: Re: [PATCH net] hyperv: Fix a compiler warning in netvsc_send()
> 
> From: Haiyang Zhang <haiyangz@...rosoft.com>
> 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@...el.com>
> > Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
> > Reviewed-by: K. Y. Srinivasan <kys@...rosoft.com>
> 
> 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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