linux-kernel - Re: [PATCH 03/11] usb/ohci-omap: remove unused variable

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Date:	Wed, 8 Aug 2012 11:34:47 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Arnd Bergmann <arnd@...db.de>
cc:	linux-arm-kernel@...ts.infradead.org, <arm@...nel.org>,
	<linux-kernel@...r.kernel.org>,
	Richard Zhao <richard.zhao@...escale.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 03/11] usb/ohci-omap: remove unused variable

On Wed, 8 Aug 2012, Arnd Bergmann wrote:

> Commit c2e935a7d "USB: move transceiver from ehci_hcd and ohci_hcd to
> hcd and rename it as phy" removed the last use of the "ohci" variable
> in the usb_hcd_omap_remove function, but left the variable in place
> unused.
> 
> Without this patch, building omap1_defconfig results in:
> 
> In file included from drivers/usb/host/ohci-hcd.c:1013:0:
> drivers/usb/host/ohci-omap.c: In function 'usb_hcd_omap_remove':
> drivers/usb/host/ohci-omap.c:406:19: warning: unused variable 'ohci' [-Wunused-variable]
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Cc: Richard Zhao <richard.zhao@...escale.com>
> Cc: Alan Stern <stern@...land.harvard.edu>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> ---
>  drivers/usb/host/ohci-omap.c |    2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
> index e7d75d2..f8b2d91 100644
> --- a/drivers/usb/host/ohci-omap.c
> +++ b/drivers/usb/host/ohci-omap.c
> @@ -403,8 +403,6 @@ err0:
>  static inline void
>  usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
>  {
> -	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
> -
>  	usb_remove_hcd(hcd);
>  	if (!IS_ERR_OR_NULL(hcd->phy)) {
>  		(void) otg_set_host(hcd->phy->otg, 0);
> 

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

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