Re: [GIT PULL] USB patches for 3.15-rc1

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Hi,

On Wednesday, April 02, 2014 06:36:13 PM Kishon Vijay Abraham I wrote:
> Hi,
> 
> On Wednesday 02 April 2014 11:12 AM, Loc Ho wrote:
> > Hi,
> > 
> >>>> USB patches for 3.15-rc1
> >>>>
> >>>> Here's the big USB pull request for 3.15-rc1.
> >>>
> >>> Hmm. I'm getting this when testing:
> >>>
> >>>   warning: (AHCI_XGENE) selects PHY_XGENE which has unmet direct
> >>> dependencies (HAS_IOMEM && OF && (ARM64 || COMPILE_TEST))
> >>>
> >>> which looks like AHCI_XGENE doesn't have the proper dependency on OF
> >>> (or alternatively PHY_XGENE has an incorrect dependemcy on OF).
> >>>
> >>> According to google it looks like Fengguang reported this on
> >>> kbuild-all, but nowhere else.
> >>>
> >>> The actual build then succeeds. But the Kconfig warning is real and
> >>> implies that something is seriously wrong wrt the dependencies for
> >>> this thing.
> >>>
> >>> It looks like the "select PHY_XGENE" came in through the libata
> >>> update, but this USB update actually brought in the "config PHY_XGENE"
> >>> and thus this error. Which makes me wonder how this all worked. Why
> >>> does that "select PHY_XGENE" exist when apparently it's not needed?
> >>>
> >>> Regardless, there's something broken somewhere.
> >>
> >> Odd, I don't know what to do to fix this up "properly".
> >>
> >> Loc Ho, this came in from your patch, any ideas?
> 
> Shouldn't we let the users to enable PHY_XGENE (maybe add in the platform
> defconfig)?

The idea that PHY drivers have to be explicitly enabled to make
other drivers work doesn't sound very attractive.  I would prefer
to go with Loc's idea of dropping COMPILE_TEST dependency and
making the AHCI_XGENE driver available only on ARM64.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

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