linux-kernel - Re: [PATCH 1/2] usb: Use dev_is_pci() to check whether it is pci device

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Date:	Thu, 5 Dec 2013 10:10:16 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Yijing Wang <wangyijing@...wei.com>
cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Hanjun Guo <guohanjun@...wei.com>
Subject: Re: [PATCH 1/2] usb: Use dev_is_pci() to check whether it is pci
 device

On Thu, 5 Dec 2013, Yijing Wang wrote:

> Use PCI standard marco dev_is_pci() instead of directly compare
> pci_bus_type to check whether it is pci device.
> 
> Signed-off-by: Yijing Wang <wangyijing@...wei.com>
> ---
>  drivers/usb/host/ehci-dbg.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
> index 4a9c2ed..0bb5e48 100644
> --- a/drivers/usb/host/ehci-dbg.c
> +++ b/drivers/usb/host/ehci-dbg.c
> @@ -818,7 +818,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf)
>  
>  #ifdef	CONFIG_PCI
>  	/* EHCI 0.96 and later may have "extended capabilities" */
> -	if (hcd->self.controller->bus == &pci_bus_type) {
> +	if (dev_is_pci(hcd->self.controller)) {
>  		struct pci_dev	*pdev;
>  		u32		offset, cap, cap2;
>  		unsigned	count = 256/4;

Acked-by: Alan Stern <stern@...land.harvard.edu>

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