From: kernel test robot <lkp@intel.com>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
Ammar Faizi <ammarfaizi2@gnuweeb.org>,
GNU/Weeb Mailing List <gwml@vger.gnuweeb.org>,
linux-kernel@vger.kernel.org
Subject: [ammarfaizi2-block:paulmck/linux-rcu/dev.2022.09.03a 36/36] kernel/rcu/srcutree.c:647:1: error: use of undeclared identifier 'u'
Date: Wed, 21 Sep 2022 09:14:58 +0800 [thread overview]
Message-ID: <202209210942.YUFSaizJ-lkp@intel.com> (raw)
tree: https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/dev.2022.09.03a
head: 607762184099b5d0b6765f69673fafa1d7eb4d30
commit: 607762184099b5d0b6765f69673fafa1d7eb4d30 [36/36] srcu: Check for consistent per-CPU per-srcu_struct NMI safety
config: arm-randconfig-r013-20220921 (https://download.01.org/0day-ci/archive/20220921/202209210942.YUFSaizJ-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://github.com/ammarfaizi2/linux-block/commit/607762184099b5d0b6765f69673fafa1d7eb4d30
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block paulmck/linux-rcu/dev.2022.09.03a
git checkout 607762184099b5d0b6765f69673fafa1d7eb4d30
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash kernel/rcu/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> kernel/rcu/srcutree.c:647:1: error: use of undeclared identifier 'u'
u);
^
1 error generated.
vim +/u +647 kernel/rcu/srcutree.c
628
629 /*
630 * Check for consistent NMI safety.
631 */
632 static void srcu_check_nmi_safety(struct srcu_struct *ssp, bool nmi_safe)
633 {
634 int nmi_safe_mask = 1 << nmi_safe;
635 int old_nmi_safe_mask;
636 struct srcu_data *sdp;
637
638 if (!IS_ENABLED(CONFIG_PROVE_RCU))
639 return;
640 sdp = raw_cpu_ptr(ssp->sda);
641 old_nmi_safe_mask = READ_ONCE(sdp->srcu_nmi_safety);
642 if (!old_nmi_safe_mask) {
643 WRITE_ONCE(sdp->srcu_nmi_safety, nmi_safe_mask);
644 return;
645 }
646 WARN_ONCE(old_nmi_safe_mask != nmi_safe_mask, "CPU %d old state %d new state %d\n", sdp->cpu, old_nmi_safe_mask, nmi_safe_mask);
> 647 u);
648 }
649
--
0-DAY CI Kernel Test Service
https://01.org/lkp
reply other threads:[~2022-09-21 1:16 UTC|newest]
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