Re: [Xen-devel] [PATCH v2 04/12] pci: make PCI_SBDF2 return a pci_sbdf_t

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: Xen-devel [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Roger Pau Monne
> Sent: 06 June 2019 10:02
> To: xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Kevin Tian <kevin.tian@xxxxxxxxx>; Stefano Stabellini 
> <sstabellini@xxxxxxxxxx>; Wei Liu
> <wl@xxxxxxx>; Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>; George Dunlap
> <George.Dunlap@xxxxxxxxxx>; Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>; Ian 
> Jackson
> <Ian.Jackson@xxxxxxxxxx>; Tim (Xen.org) <tim@xxxxxxx>; Julien Grall 
> <julien.grall@xxxxxxx>; Jan
> Beulich <jbeulich@xxxxxxxx>; Roger Pau Monne <roger.pau@xxxxxxxxxx>
> Subject: [Xen-devel] [PATCH v2 04/12] pci: make PCI_SBDF2 return a pci_sbdf_t
> 
> And fix it's only caller.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> ---
> Cc: Kevin Tian <kevin.tian@xxxxxxxxx>
> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Cc: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Jan Beulich <jbeulich@xxxxxxxx>
> Cc: Julien Grall <julien.grall@xxxxxxx>
> Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> Cc: Tim Deegan <tim@xxxxxxx>
> Cc: Wei Liu <wl@xxxxxxx>
> ---
>  xen/drivers/passthrough/vtd/dmar.c | 2 +-
>  xen/include/xen/pci.h              | 3 ++-
>  2 files changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/xen/drivers/passthrough/vtd/dmar.c 
> b/xen/drivers/passthrough/vtd/dmar.c
> index 59a46cd1c6..b858fe7c80 100644
> --- a/xen/drivers/passthrough/vtd/dmar.c
> +++ b/xen/drivers/passthrough/vtd/dmar.c
> @@ -1047,7 +1047,7 @@ int intel_iommu_get_reserved_device_memory(iommu_grdm_t 
> *func, void *ctxt)
> 
>          rc = func(PFN_DOWN(rmrr->base_address),
>                    PFN_UP(rmrr->end_address) - PFN_DOWN(rmrr->base_address),
> -                  PCI_SBDF2(rmrr->segment, bdf), ctxt);
> +                  PCI_SBDF2(rmrr->segment, bdf).sbdf, ctxt);
> 
>          if ( unlikely(rc < 0) )
>              return rc;
> diff --git a/xen/include/xen/pci.h b/xen/include/xen/pci.h
> index 9ea41789d0..30afaca838 100644
> --- a/xen/include/xen/pci.h
> +++ b/xen/include/xen/pci.h
> @@ -36,7 +36,8 @@
>  #define PCI_BDF2(b,df)  ((((b) & 0xff) << 8) | ((df) & 0xff))
>  #define PCI_SBDF(s,b,d,f) \
>      ((pci_sbdf_t) { .sbdf = (((s) & 0xffff) << 16) | PCI_BDF(b,d,f) })
> -#define PCI_SBDF2(s,bdf) ((((s) & 0xffff) << 16) | ((bdf) & 0xffff))
> +#define PCI_SBDF2(s,bdf) \
> +    ((pci_sbdf_t) { .sbdf = (((s) & 0xffff) << 16) | ((bdf) & 0xffff) })

Perhaps...

((pci_sbdf_t) { .seg = s, .bdf = bdf })

>  #define PCI_SBDF3(s,b,df) ((((s) & 0xffff) << 16) | PCI_BDF2(b, df))
> 
>  typedef union {
> --
> 2.20.1 (Apple Git-117)
> 
> 
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