linux-kernel - Re: 4.1-rc2: build issue with duplicate redefinition of _PAGE_GLOBAL

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Message-ID: <CAOiHx==e0MTorbgAgmL13nT=5ChW2OnFB7RKxenjaRZbnzS1-A@mail.gmail.com>
Date:	Wed, 13 May 2015 21:19:08 +0200
From:	Jonas Gorski <jogo@...nwrt.org>
To:	Arend van Spriel <arend@...adcom.com>
Cc:	"linux-mips@...ux-mips.org" <linux-mips@...ux-mips.org>,
	LKML <linux-kernel@...r.kernel.org>,
	brcm80211 development <brcm80211-dev-list@...adcom.com>,
	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	Ralf Baechle <ralf@...ux-mips.org>
Subject: Re: 4.1-rc2: build issue with duplicate redefinition of _PAGE_GLOBAL_SHIFT

Hi Arend,

On Wed, May 13, 2015 at 8:43 PM, Arend van Spriel <arend@...adcom.com> wrote:
> For our upstream brcm80211 drivers we build for a number of architectures
> including MIPS. In recent builds we get an error/warning:
>
>   CC [M]  drivers/net/wireless/brcm80211/brcmfmac/cfg80211.o
> In file included from ./arch/mips/include/asm/io.h:27:0,
>                  from ./arch/mips/include/asm/page.h:176,
>                  from include/linux/mm_types.h:15,
>                  from include/linux/kmemcheck.h:4,
>                  from include/linux/skbuff.h:18,
>                  from include/linux/if_ether.h:23,
>                  from include/linux/etherdevice.h:25,
>                  from drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c:20:
> ./arch/mips/include/asm/pgtable-bits.h:164:0: error: "_PAGE_GLOBAL_SHIFT"
> redefined [-Werror]
> ./arch/mips/include/asm/pgtable-bits.h:141:0: note: this is the location of
> the previous definition
>
> As it is likely a Kconfig issue I have attached the config file that was
> used for the build. I started out with mips_config.old and ran 'make
> oldconfig' and just hit enter a couple of times selecting all defaults which
> ends up with the mips_config file having the issue. As I have no clue what
> Kconfig combinations are valid I am hoping anyone on the mips list can shed
> some light on this.

this isn't a config issue, it's a clear bug which

https://patchwork.linux-mips.org/patch/9960/

intends to fix.


Regards
Jonas
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