linux-kernel - Re: [origin tree build failure] [PATCH] Revert "USB: musb: make HAVE

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Date:	Mon, 12 Oct 2009 10:39:15 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Greg KH <gregkh@...e.de>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [origin tree build failure] [PATCH] Revert "USB: musb: make 
	HAVE_CLK support optional"

On Mon, Oct 12, 2009 at 10:29, Greg KH wrote:
> On Mon, Oct 12, 2009 at 09:05:57AM -0400, Mike Frysinger wrote:
>> On Mon, Oct 12, 2009 at 03:42, Ingo Molnar wrote:
>> >
>> > * Linus Torvalds <torvalds@...ux-foundation.org> wrote:
>> >
>> >> As usual, please test this for regressions, both new and old.
>> >
>> >>       USB: musb: make HAVE_CLK support optional
>> >
>> > This USB/Blackfin commit broke the x86 build with these config options:
>> >
>> >  CONFIG_USB_MUSB_HDRC=y
>> >  CONFIG_USB_MUSB_HOST=y
>> >  # CONFIG_USB_MUSB_PERIPHERAL is not set
>> >  # CONFIG_USB_MUSB_OTG is not set
>> >  # CONFIG_USB_GADGET_MUSB_HDRC is not set
>> >  CONFIG_USB_MUSB_HDRC_HCD=y
>> >  CONFIG_MUSB_PIO_ONLY=y
>> >  CONFIG_USB_MUSB_DEBUG=y
>> >
>> > Because a side-effect of the patch was that it enabled the driver on x86
>> > too which doesnt have HAVE_CLK. So this formerly embedded-only driver
>> > got exposed on the more widely tested x86 platform.
>>
>> this is dumb.  you're addressing unrealistic scenarios (randconfig) by
>> reverting code for realistic scenarios.  how about updating the
>> already present arch depend string instead.
>
> We want 'randconfig' to work, so this is not unrealistic.  Have you not
> seen Randy Dunlap's zillion patches to get this to all work properly
> over the past months?

i'm not suggesting it not be fixed, i'm suggested it be *fixed*
instead of blindly reverted.
-mike
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