[Very RFC 34/46] powernv/pci: Remove open-coded PE lookup in pnv_pci_enable_device_hook()

[Alexey Kardashevskiy]

On 20/11/2019 12:28, Oliver O'Halloran wrote:
> Signed-off-by: Oliver O'Halloran <oohall at gmail.com>



Reviewed-by: Alexey Kardashevskiy <aik at ozlabs.ru>

but better squash it.


> ---
>  arch/powerpc/platforms/powernv/pci-ioda.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
> index 7e88de18ead6..4f38652c7cd7 100644
> --- a/arch/powerpc/platforms/powernv/pci-ioda.c
> +++ b/arch/powerpc/platforms/powernv/pci-ioda.c
> @@ -3382,7 +3382,6 @@ static resource_size_t pnv_pci_iov_resource_alignment(struct pci_dev *pdev,
>  static bool pnv_pci_enable_device_hook(struct pci_dev *dev)
>  {
>  	struct pnv_phb *phb = pci_bus_to_pnvhb(dev->bus);
> -	struct pci_dn *pdn;
>  
>  	/* The function is probably called while the PEs have
>  	 * not be created yet. For example, resource reassignment
> @@ -3392,11 +3391,7 @@ static bool pnv_pci_enable_device_hook(struct pci_dev *dev)
>  	if (!phb->initialized)
>  		return true;
>  
> -	pdn = pci_get_pdn(dev);
> -	if (!pdn || pdn->pe_number == IODA_INVALID_PE)
> -		return false;
> -
> -	return true;
> +	return !!pnv_ioda_get_pe(dev);
>  }
>  
>  static long pnv_pci_ioda1_unset_window(struct iommu_table_group *table_group,
> 

-- 
Alexey