linux-kernel - Re: [PATCH v2] uhci-platform: use devm

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Message-ID: <alpine.DEB.2.10.1406112202450.2576@hadrien>
Date:	Wed, 11 Jun 2014 22:03:02 +0100 (BST)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Alan Stern <stern@...land.harvard.edu>
cc:	Julia Lawall <julia.lawall@...6.fr>,
	Himangi Saraogi <himangi774@...il.com>,
	Tony Prisk <linux@...sktech.co.nz>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] uhci-platform: use devm_ioremap resource

On Wed, 11 Jun 2014, Alan Stern wrote:

> On Wed, 11 Jun 2014, Julia Lawall wrote:
>
> > > > v2: pass correct arguments to devm_ioremap_resource
> > > > Not compile tested due to incompatible architecture.
> > >
> > > uhci-platform is compatible with all architectures.  But you have to
> > > add it to the .config file by hand.
> >
> > What should one do exactly?  I added
> >
> > CONFIG_USB_UHCI_PLATFORM=y
> >
> > to the end of my .config file, but then running make just overwrites it:
>
> By golly, you're right...  I didn't realize it would do that.
>
> I guess you have to edit the drivers/usb/host/Kconfig file, changing
>
> config USB_UHCI_PLATFORM
> 	bool
> 	default y if ARCH_VT8500
>
> to
>
> config USB_UHCI_PLATFORM
> 	bool
> 	default y
>
> or something equivalent.
>
> >
> > > make drivers/usb/host/uhci-platform.o
> > scripts/kconfig/conf --silentoldconfig Kconfig
> > #
> > # configuration written to .config
> > #
> >   CHK     include/config/kernel.release
> >   CHK     include/generated/uapi/linux/version.h
> >   CHK     include/generated/utsrelease.h
> >   CALL    scripts/checksyscalls.sh
> >   CC      drivers/usb/host/uhci-platform.o
> > drivers/usb/host/uhci-platform.c:13:38: warning: ?struct usb_hcd? declared
> > inside parameter list [enabled by default]
> >  static int uhci_platform_init(struct usb_hcd *hcd)
>
> Do
>
> 	make drivers/usb/host/uhci-hcd.o
>
> instead of
>
> 	make drivers/usb/host/uhci-platform.o

OK, thanks for the explanations.

julia
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