Re: [PATCH 1/8] usb: host: ehci-omap: Remove redundant use of of_match_ptr

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On Tue, 21 May 2013, Sergei Shtylyov wrote:

> Hello.
> 
> On 21-05-2013 16:05, Ben Dooks wrote:
> 
> >> 'omap_ehci_dt_ids' is always compiled in. Hence use of
> >> of_match_ptr is unnecessary.
> 
> > Thought it was defined as tristate in the Kconfig.
> 
>     He talks about certain data structure, not the driver.
> And he means that it's not enclosed by #ifdef CONFIG_OF.
> 
> > config USB_EHCI_HCD_OMAP
> >          tristate "EHCI support for OMAP3 and later chips"
> >          depends on ARCH_OMAP
> 
> > this is hardly 'compiled in' here.
> 
> > And even it is 'always compiled in' we could just leave this in
> > in case it is not always compiled in.
> 
>      See how of_match_ptr() is defined in <linux/of.h> depending on 
> CONFIG_OF.

Maybe instead of removing of_match_ptr, it would be better to enclose 
the definition of omap_ehci_dt_ids in #ifdef CONFIG_OF/#endif.  It 
looks like that is the way it was intended to be used.

Alan Stern

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