From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965398AbbDJOFn (ORCPT ); Fri, 10 Apr 2015 10:05:43 -0400 Received: from eddie.linux-mips.org ([148.251.95.138]:41375 "EHLO cvs.linux-mips.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965281AbbDJOFj (ORCPT ); Fri, 10 Apr 2015 10:05:39 -0400 Date: Fri, 10 Apr 2015 16:05:32 +0200 From: Ralf Baechle To: Guenter Roeck Cc: linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, Andy Lutomirski , David Daney Subject: Re: [PATCH] mips: Fix build if PERF_EVENTS is configured Message-ID: <20150410140531.GD21107@linux-mips.org> References: <1428524992-5979-1-git-send-email-linux@roeck-us.net> <20150409000934.GA21107@linux-mips.org> <5525F498.5040203@roeck-us.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5525F498.5040203@roeck-us.net> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 08, 2015 at 08:40:08PM -0700, Guenter Roeck wrote: > >>kernel/events/core.c:4828: undefined reference to `perf_get_regs_user' > >> > >>The problem is caused by commit 3478e32c1545 ("MIPS: Add user stack and > >>registers to perf.") in combination with commit 88a7c26af8da ("perf: > >>Move task_pt_regs sampling into arch code"), which introduces > >>perf_get_regs_user(). > >> > >>Cc: Andy Lutomirski > >>Cc: David Daney > >>Signed-off-by: Guenter Roeck > > > >I've already applied the same change locally but due to patch ordering > >constraints I'm considering to temporarily pull this patch until the > >perf stuff and the remainder of the MIPS changes are in 4.1 or so. > > > Hi Ralf, > > Does it hurt to have the function if 88a7c26af8da is not in the tree ? > Sure, you'll get a smatch and/or sparse warning, but I would consider that > to be less severe than build failures. There are other dependencies between the pending MIPS perf patches, the remainder of the pending MIPS patches and upstream perf patches for 4.1 and all in all I've decided it's too much headache and I should rather wait. Ralf