From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751679AbeCNJ7S (ORCPT ); Wed, 14 Mar 2018 05:59:18 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:57002 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751413AbeCNJ7R (ORCPT ); Wed, 14 Mar 2018 05:59:17 -0400 Subject: Re: [linux-next][bisected c7c133f3][gcc 4.8.5] build fail with error: first argument to =?UTF-8?Q?=E2=80=98=5F=5Fbuiltin=5Fchoose=5Fexpr=E2=80=99?= not a constant From: Abdul Haleem To: Stephen Rothwell Cc: linuxppc-dev , linux-next , linux-kernel , Kees Cook , mpe , sachinp Date: Wed, 14 Mar 2018 15:29:06 +0530 In-Reply-To: <20180314193957.5f835d33@canb.auug.org.au> References: <1521016194.31953.9.camel@abdul.in.ibm.com> <20180314193957.5f835d33@canb.auug.org.au> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu1 Mime-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 18031409-0056-0000-0000-0000042D5008 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008671; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000254; SDB=6.01002856; UDB=6.00510322; IPR=6.00782186; MB=3.00020027; MTD=3.00000008; XFM=3.00000015; UTC=2018-03-14 09:59:12 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18031409-0057-0000-0000-0000086F50A0 Message-Id: <1521021546.31953.12.camel@abdul.in.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2018-03-14_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1803140117 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2018-03-14 at 19:39 +1100, Stephen Rothwell wrote: > Hi Abdul, > > On Wed, 14 Mar 2018 13:59:54 +0530 Abdul Haleem wrote: > > > > Today's next kernel fails to build with gcc 4.8.5 on powerpc machine. > > Thanks for the report. Just for the future, please include the > next-XXXXXXXX tag when making reports about linux-next. Sure, I will. next-20180313 is the bad tag > > > ./include/linux/jiffies.h: In function ‘jiffies_delta_to_clock_t’: > > ./include/linux/kernel.h:855:2: error: first argument to ‘__builtin_choose_expr’ not a constant > > __builtin_choose_expr(__builtin_constant_p(x) && \ > > ^ > > ./include/linux/kernel.h:867:19: note: in expansion of macro ‘__max’ > > #define max(x, y) __max(typeof(x), typeof(y), x, y) > > > > Machine Type: Power8 Baremetal > > gcc: 4.8.5 > > > > > > Builds fine when below patch is reverted > > c7c133f3 kernel.h: skip single-eval logic on literals in min()/max() > > Those patches have been removed from today's linux-next (next-20180314). -- Regard's Abdul Haleem IBM Linux Technology Centre