linux-kernel - Re: [PATCH 09/11] pci: pci_bridge_release

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Date:	Tue, 19 Jan 2010 14:57:14 -0700
From:	Alex Chiang <achiang@...com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH 09/11] pci: pci_bridge_release_res

> --- a/drivers/pci/setup-bus.c
> +++ b/drivers/pci/setup-bus.c
> @@ -731,32 +732,57 @@ static void pci_bridge_release_resources(struct pci_bus *bus,
>  	unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM |
>  				  IORESOURCE_PREFETCH;
>  
> +	/* The root bus? */
> +	if (!bus->self)
> +		return;
> +

pci_is_root_bus()

> +/*
> + * pci_bridge_release_res will not release the resource that have children
> + *  and apply all resources type under that devices
> + */
> +void pci_bridge_release_res(struct pci_bus *bus)
> +{
> +	unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM |
> +				  IORESOURCE_PREFETCH;
> +
> +	__pci_bridge_release_res(bus, false, type_mask);
> +}
> +EXPORT_SYMBOL_GPL(pci_bridge_release_res);
> +
> +/*
> + * this one will release children resource, but only to specifed resource type
> + * and also will keep old resource size
> + */
> +static void pci_bridge_release_resources(struct pci_bus *bus,
> +					  unsigned long type)
> +{
> +	__pci_bridge_release_res(bus, true, type);
> +}
> +

I still don't really like the naming here. We're exporting a
function with an abbreviation in the name while the static
function has a name that is more descriptive.

/ac
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