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Date: Mon, 2 Jul 2012 15:34:05 +0100
Message-ID: <CAJSP0QVDDYdymD3Lk-VVmSS9uPQ5RVahT4=s-qDv8EF2JSjJgA@mail.gmail.com>
From: Stefan Hajnoczi <stefanha@gmail.com>
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Subject: Re: [Qemu-devel] [PATCH 18/32] hd-geometry: Switch to uint32_t to
 match BlockConf
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To: Markus Armbruster <armbru@redhat.com>
Cc: kwolf@redhat.com, aliguori@us.ibm.com, Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>, qemu-devel@nongnu.org, pbonzini@redhat.com, =?ISO-8859-1?Q?Andreas_F=E4rber?= <afaerber@suse.de>

On Mon, Jul 2, 2012 at 3:15 PM, Markus Armbruster <armbru@redhat.com> wrote=
:
> Andreas F=E4rber <afaerber@suse.de> writes:
>
>> Am 02.07.2012 14:55, schrieb Stefan Hajnoczi:
>>> On Fri, Jun 29, 2012 at 05:34:40PM +0200, Markus Armbruster wrote:
>>>> Best to use the same type, to avoid unwanted truncation or sign
>>>> extension.
>>>>
>>>> BlockConf can't use plain int for cyls, heads and secs, because
>>>> integer properties require an exact width.
>>>>
>>>> Signed-off-by: Markus Armbruster <armbru@redhat.com>
>>>> ---
>>>>  blockdev.h       |    2 +-
>>>>  hw/hd-geometry.c |    4 ++--
>>>>  hw/ide/core.c    |    2 +-
>>>>  hw/scsi-disk.c   |    2 +-
>>>>  hw/virtio-blk.c  |    2 +-
>>>>  5 files changed, 6 insertions(+), 6 deletions(-)
>>>
>>> It would be nice to update the hd_geometry_lchs_guess() trace event tha=
t
>>> you added to use uint32_t + %u instead of int + %d.
>>
>> PRIu32?
>
> uint32_t: Good point, will do.
>
> Conversion specifier: trace-events routinely prints uint32_t with %d and
> %x, never with PRI*32.  I'm happy to change from %d to %u, but reluctant
> to add the first use of PRIu32.

Either is fine by me although we might as well continue to do %u.

Stefan