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From: Matthew Wilcox <willy@linux.intel.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Matthew Wilcox <willy@linux.intel.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arch@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-sh@vger.kernel.org, Vineet Gupta <vgupta@synopsys.com>
Subject: Re: fs: dax: do not build on ARC or SH
Date: Mon, 23 Feb 2015 18:40:25 +0000	[thread overview]
Message-ID: <20150223184025.GD2780@wil.cx> (raw)
In-Reply-To: <5778538.KJ98x3yxkB@wuerfel>

On Mon, Feb 23, 2015 at 12:29:45PM +0100, Arnd Bergmann wrote:
> The DAX implementation relies on the architecture to provide a working
> copy_user_page() function, as reported by Michael Ellerman's kisskb
> build bot:
> 
> fs/dax.c: error: implicit declaration of function 'copy_user_page' [-Werror=implicit-function-declaration]:  => 266:2
> 
> We already have a list of architectures that are known to be incompatible,
> but the list is missing ARC and SH at the moment. Further, blackfin and
> c6x also lack support for this function, but are already excluded because
> they do not support MMU-based kernels.

I've got a short list of patches for DAX; I'll add this one to the list.

Have the maintainers of these architectures been notified that they're
missing a core piece of kernel functionality?

WARNING: multiple messages have this Message-ID (diff)
From: Matthew Wilcox <willy@linux.intel.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Matthew Wilcox <willy@linux.intel.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arch@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-sh@vger.kernel.org, Vineet Gupta <vgupta@synopsys.com>
Subject: Re: fs: dax: do not build on ARC or SH
Date: Mon, 23 Feb 2015 13:40:25 -0500	[thread overview]
Message-ID: <20150223184025.GD2780@wil.cx> (raw)
In-Reply-To: <5778538.KJ98x3yxkB@wuerfel>

On Mon, Feb 23, 2015 at 12:29:45PM +0100, Arnd Bergmann wrote:
> The DAX implementation relies on the architecture to provide a working
> copy_user_page() function, as reported by Michael Ellerman's kisskb
> build bot:
> 
> fs/dax.c: error: implicit declaration of function 'copy_user_page' [-Werror=implicit-function-declaration]:  => 266:2
> 
> We already have a list of architectures that are known to be incompatible,
> but the list is missing ARC and SH at the moment. Further, blackfin and
> c6x also lack support for this function, but are already excluded because
> they do not support MMU-based kernels.

I've got a short list of patches for DAX; I'll add this one to the list.

Have the maintainers of these architectures been notified that they're
missing a core piece of kernel functionality?

  reply	other threads:[~2015-02-23 18:40 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-23 11:29 fs: dax: do not build on ARC or SH Arnd Bergmann
2015-02-23 18:40 ` Matthew Wilcox [this message]
2015-02-23 18:40   ` Matthew Wilcox
2015-02-23 21:31   ` Arnd Bergmann
2015-02-23 21:31     ` Arnd Bergmann
2015-02-23 21:56   ` Guenter Roeck
2015-02-23 21:56     ` Guenter Roeck
2015-02-23 21:58     ` Christoph Hellwig
2015-02-23 21:58       ` Christoph Hellwig
2015-02-23 22:15       ` Guenter Roeck
2015-02-23 22:15         ` Guenter Roeck
2015-02-28  0:59 ` Paul Bolle

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