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Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing |
Date: |
Fri, 17 Feb 2012 12:13:57 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Feb 17, 2012 at 01:50:41PM +0400, malc wrote:
> On Fri, 17 Feb 2012, Michael S. Tsirkin wrote:
>
> > On Thu, Feb 16, 2012 at 11:23:40PM +0400, malc wrote:
> > > > +{
> > > > + unsigned dom, bus, slot, func;
> > > > + int n = -1;
> > > > +
> > > > + /* Parse [[<domain>:]<bus>:]<slot> */
> > > > + sscanf(addr, "%x:%x:%x%n", &dom, &bus, &slot, &n);
> > >
> > > sscanf can fail.
> > >
> > > > + if (n == -1) {
> >
> >
> > If it does n will stay -1.
> >
>
> You are right. That does not, however, invalidate the points made
> by Eric Blake.
Yes. But I think
+ sscanf(addr, "%8x:%8x:%8x%n", &dom, &bus, &slot, &n);
addresses his points.
> --
> mailto:address@hidden
- [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, (continued)
- [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, Michael S. Tsirkin, 2012/02/16
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, malc, 2012/02/16
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, Eric Blake, 2012/02/16
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, malc, 2012/02/16
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, Michael S. Tsirkin, 2012/02/17
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, Markus Armbruster, 2012/02/17
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, Michael S. Tsirkin, 2012/02/19
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, Michael S. Tsirkin, 2012/02/19
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, Michael S. Tsirkin, 2012/02/17
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing, malc, 2012/02/17
- Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing,
Michael S. Tsirkin <=