Re: [Xen-devel] [PATCH RFC v1 1/2] xen/hw/passthrough: Use errno instead of ret for xc_physdev_map_* calls

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Fri, 13 Mar 2015, Konrad Rzeszutek Wilk wrote:
> As the libxc library follows (mostly) the return negative
> for failure and stashes the error value in errno.
> 
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

I'll add it to my queue


>  hw/xen/xen_pt.c     | 4 ++--
>  hw/xen/xen_pt_msi.c | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c
> index c1bf357..d2c187d 100644
> --- a/hw/xen/xen_pt.c
> +++ b/hw/xen/xen_pt.c
> @@ -691,8 +691,8 @@ static int xen_pt_initfn(PCIDevice *d)
>      rc = xc_physdev_map_pirq(xen_xc, xen_domid, machine_irq, &pirq);
>  
>      if (rc < 0) {
> -        XEN_PT_ERR(d, "Mapping machine irq %u to pirq %i failed, (rc: %d)\n",
> -                   machine_irq, pirq, rc);
> +        XEN_PT_ERR(d, "Mapping machine irq %u to pirq %i failed, (err: 
> %d)\n",
> +                   machine_irq, pirq, errno);
>  
>          /* Disable PCI intx assertion (turn on bit10 of devctl) */
>          xen_host_pci_set_word(&s->real_device,
> diff --git a/hw/xen/xen_pt_msi.c b/hw/xen/xen_pt_msi.c
> index 9ed9321..b01921a 100644
> --- a/hw/xen/xen_pt_msi.c
> +++ b/hw/xen/xen_pt_msi.c
> @@ -132,8 +132,8 @@ static int msi_msix_setup(XenPCIPassthroughState *s,
>                                       msix_entry, table_base);
>          if (rc) {
>              XEN_PT_ERR(&s->dev,
> -                       "Mapping of MSI%s (rc: %i, vec: %#x, entry %#x)\n",
> -                       is_msix ? "-X" : "", rc, gvec, msix_entry);
> +                       "Mapping of MSI%s (err: %i, vec: %#x, entry %#x)\n",
> +                       is_msix ? "-X" : "", errno, gvec, msix_entry);
>              return rc;
>          }
>      }
> -- 
> 2.1.0
> 

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