Re: [PATCH] s390/pci: PCI_IOV_RESOURCES loop refactoring in zpci_map_resources

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Thanks for the patch!

Sebastian may have silently fixed this, but for future reference,

  $ git log --oneline arch/s390/pci/pci.c
  c7ff0e918a7c s390/pci: deal with devices that have no support for MIO instructions
  dcd33b23c9f3 s390/pci: fix assignment of bus resources
  56271303808f s390/pci: add parameter to disable usage of MIO instructions
  71ba41c9b1d9 s390/pci: provide support for MIO instructions
  81deca12c202 s390/pci: move io address mapping code to pci_insn.c
  fbfe07d440f2 s390/pci: add parameter to force floating irqs
  c840927cf5f2 s390/pci: move everything irq related to pci_irq.c
  066ee72aecdc s390/pci: remove unused define
  ...

shows that the typical style there is to start the subject with a verb
so it's an imperative sentence.

On Tue, Aug 06, 2019 at 07:01:37PM +0300, Denis Efremov wrote:
> This patch alters the for loop iteration scheme in zpci_map_resources
> to make it more usual. Thus, the patch generalizes the style for
> PCI_IOV_RESOURCES iteration and improves readability.
> 
> Signed-off-by: Denis Efremov <efremov@xxxxxxxxx>
> ---
>  arch/s390/pci/pci.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
> index b0e3b9a0e488..c7fea9bea8cb 100644
> --- a/arch/s390/pci/pci.c
> +++ b/arch/s390/pci/pci.c
> @@ -431,13 +431,13 @@ static void zpci_map_resources(struct pci_dev *pdev)
>  	}
>  
>  #ifdef CONFIG_PCI_IOV
> -	i = PCI_IOV_RESOURCES;
> +	for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) {
> +		int bar = i + PCI_IOV_RESOURCES;
>  
> -	for (; i < PCI_SRIOV_NUM_BARS + PCI_IOV_RESOURCES; i++) {
> -		len = pci_resource_len(pdev, i);
> +		len = pci_resource_len(pdev, bar);
>  		if (!len)
>  			continue;
> -		pdev->resource[i].parent = &iov_res;
> +		pdev->resource[bar].parent = &iov_res;
>  	}
>  #endif
>  }
> -- 
> 2.21.0
> 



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