linux-kernel - Re: [PATCH V2 1/1] Drivers: hv: Implement the file copy service

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Message-ID: <20140117073112.GP7444@mwanda>
Date:	Fri, 17 Jan 2014 10:31:12 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Olaf Hering <olaf@...fle.de>
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>, apw@...onical.com,
	gregkh@...uxfoundation.org, jasowang@...hat.com,
	linux-kernel@...r.kernel.org, devel@...uxdriverproject.org
Subject: Re: [PATCH V2 1/1] Drivers: hv: Implement the file copy service

On Thu, Jan 16, 2014 at 10:42:01AM +0100, Olaf Hering wrote:
> On Tue, Jan 14, K. Y. Srinivasan wrote:
> 
> > +enum hv_fcopy_op {
> > +	START_FILE_COPY = 0,
> > +	WRITE_TO_FILE,
> > +	COMPLETE_FCOPY,
> > +	CANCEL_FCOPY,
> > +};
> > +
> > +struct hv_fcopy_hdr {
> > +	enum hv_fcopy_op operation;
> > +	uuid_le service_id0; /* currently unused */
> > +	uuid_le service_id1; /* currently unused */
> > +} __attribute__((packed));
> 
> Is enum a fixed size?

No, it's not.  The compiler has a lot of latitude in choosing the size
for enums.

regards,
dan carpenter

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