From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1753011AbbCaXYp (ORCPT <rfc822;w@1wt.eu>);
	Tue, 31 Mar 2015 19:24:45 -0400
Received: from ozlabs.org ([103.22.144.67]:55251 "EHLO ozlabs.org"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1751595AbbCaXYn (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Tue, 31 Mar 2015 19:24:43 -0400
Message-ID: <1427844281.4256.3.camel@ellerman.id.au>
Subject: Re: linux-next: Tree for Mar 31 (build failures and culprits)
From: Michael Ellerman <mpe@ellerman.id.au>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>,
        Stephen Rothwell <sfr@canb.auug.org.au>, linux-next@vger.kernel.org,
        linux-kernel@vger.kernel.org, Tony Lindgren <tony@atomide.com>,
        Felipe Balbi <balbi@ti.com>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Russell King <rmk+kernel@arm.linux.org.uk>,
        Arnd Bergmann <arnd@arndb.de>, Lad@roeck-us.net,
        Prabhakar <prabhakar.csengg@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>, Daniel Mack <daniel@zonque.org>,
        Mikko Perttunen <mperttunen@nvidia.com>,
        Thierry Reding <treding@nvidia.com>
Date: Wed, 01 Apr 2015 10:24:41 +1100
In-Reply-To: <20150331230749.GA6564@kroah.com>
References: <20150401000221.21961ecd@canb.auug.org.au>
	 <20150331161640.GA16540@roeck-us.net> <20150331230749.GA6564@kroah.com>
Content-Type: text/plain; charset="UTF-8"
X-Mailer: Evolution 3.12.10-0ubuntu1~14.10.1 
Mime-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Wed, 2015-04-01 at 01:07 +0200, Greg Kroah-Hartman wrote:
> On Tue, Mar 31, 2015 at 09:16:40AM -0700, Guenter Roeck wrote:
> > alpha:allmodconfig
> > mips:allmodconfig
> > 
> > samples/kdbus/kdbus-workers.c: In function ‘prime_new’:
> > samples/kdbus/kdbus-workers.c:930:18: error: ‘__NR_memfd_create’ undeclared
> > (first use in this function)
> >   p->fd = syscall(__NR_memfd_create, "prime-area", MFD_CLOEXEC);
> > 
> > Looks like the kdbus example never worked for the affected architectures.
> > I don't build allmodconfig for all architectures, so other architectures
> > may be affected as well.
> 
> You need 3.17 kernel headers to have memfd_create, not much the kdbus
> test code can do about that.  You might want to update the kernel
> headers for these build boxes.

Or just 'make headers_install' before building the samples should do it.

cheers