linux-kernel - Re: linux-next: build failure after merge of the wireless-drivers-next tree

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Date:   Fri, 3 Aug 2018 11:21:54 +0200
From:   Stanislaw Gruszka <sgruszka@...hat.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Kalle Valo <kvalo@...eaurora.org>,
        Wireless <linux-wireless@...r.kernel.org>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the
 wireless-drivers-next tree

On Fri, Aug 03, 2018 at 11:11:40AM +0200, Stanislaw Gruszka wrote:
> Hi
> 
> On Fri, Aug 03, 2018 at 06:29:42PM +1000, Stephen Rothwell wrote:
> > After merging the wireless-drivers-next tree, today's linux-next build
> > (powerpc allyesconfig) failed like this:
> [snip]
> > diff --git a/drivers/net/wireless/mediatek/mt76/Kconfig b/drivers/net/wireless/mediatek/mt76/Kconfig
> > index 850611ad347a..ad56b3ed2be2 100644
> > --- a/drivers/net/wireless/mediatek/mt76/Kconfig
> > +++ b/drivers/net/wireless/mediatek/mt76/Kconfig
> > @@ -13,6 +13,7 @@ config MT76x0U
> >  	tristate "MediaTek MT76x0U (USB) support"
> >  	depends on MAC80211
> >  	depends on USB
> > +	depends on BROKEN
> Would be better to limit driver to be build as module.
> Hopefully that will fix the issue. I'll post patch in a moment.

Ok, I made config allyesconfig and .config file looks like this:

CONFIG_WLAN_VENDOR_MEDIATEK=y
CONFIG_MT7601U=y
CONFIG_MT76_CORE=y
CONFIG_MT76_USB=y
CONFIG_MT76x2_COMMON=y
CONFIG_MT76x0U=m

However I still not sure if kernel will build this way.
Because there can be conflict between kernel symbols
and module symbols. So looks as part of quick fix
mt7601u should be build also as module. And slower
fix will be to rename symbosl names in mt76x0 driver.

Regards
Stanislaw