linux-kernel - RE: [PATCH 4/8] Staging: hv: vmbus: Fix checkpatch warnings

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Date:	Wed, 24 Aug 2011 01:10:32 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Greg KH <greg@...ah.com>
CC:	"gregkh@...e.de" <gregkh@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"virtualization@...ts.osdl.org" <virtualization@...ts.osdl.org>,
	Haiyang Zhang <haiyangz@...rosoft.com>
Subject: RE: [PATCH 4/8] Staging: hv: vmbus: Fix checkpatch warnings



> -----Original Message-----
> From: Greg KH [mailto:greg@...ah.com]
> Sent: Tuesday, August 23, 2011 7:17 PM
> To: KY Srinivasan
> Cc: gregkh@...e.de; linux-kernel@...r.kernel.org;
> devel@...uxdriverproject.org; virtualization@...ts.osdl.org; Haiyang Zhang
> Subject: Re: [PATCH 4/8] Staging: hv: vmbus: Fix checkpatch warnings
> 
> On Tue, Jul 19, 2011 at 11:44:21AM -0700, K. Y. Srinivasan wrote:
> > Fix  checkpatch warnings in hv.c
> >
> > Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
> > Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
> > ---
> >  drivers/staging/hv/hv.c |    4 ++--
> >  1 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/staging/hv/hv.c b/drivers/staging/hv/hv.c
> > index e733173..14e6315 100644
> > --- a/drivers/staging/hv/hv.c
> > +++ b/drivers/staging/hv/hv.c
> > @@ -111,7 +111,7 @@ static u64 do_hypercall(u64 control, void *input, void
> *output)
> >  	u64 hv_status = 0;
> >  	u64 input_address = (input) ? virt_to_phys(input) : 0;
> >  	u64 output_address = (output) ? virt_to_phys(output) : 0;
> > -	volatile void *hypercall_page = hv_context.hypercall_page;
> > +	void *hypercall_page = hv_context.hypercall_page;
> 
> Are you sure?  This was just someone being foolish?  No other reason
> someone tried to use volatile here?

I cannot see any reason why this needs to be volatile.

Regards,

K. Y
> 
> greg k-h

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