From: kernel test robot <lkp@intel.com>
To: Nadav Amit <nadav.amit@gmail.com>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org
Subject: Re: [RFC PATCH v2 2/5] userfaultfd: introduce access-likely mode for copy/wp operations
Date: Mon, 20 Jun 2022 18:33:52 +0800 [thread overview]
Message-ID: <202206201856.LMF3y588-lkp@intel.com> (raw)
In-Reply-To: <20220619233449.181323-3-namit@vmware.com>
Hi Nadav,
[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on linus/master v5.19-rc2 next-20220617]
[cannot apply to shuah-kselftest/next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/intel-lab-lkp/linux/commits/Nadav-Amit/userfaultfd-support-access-write-hints/20220620-150942
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
config: hexagon-buildonly-randconfig-r001-20220620 (https://download.01.org/0day-ci/archive/20220620/202206201856.LMF3y588-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project af6d2a0b6825e71965f3e2701a63c239fa0ad70f)
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
# https://github.com/intel-lab-lkp/linux/commit/ad1b8120bf00d273f9c786fe63c5c1fbcd7ff43c
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Nadav-Amit/userfaultfd-support-access-write-hints/20220620-150942
git checkout ad1b8120bf00d273f9c786fe63c5c1fbcd7ff43c
# 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=hexagon SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> mm/userfaultfd.c:700:23: warning: parameter 'uffd_flags' set but not used [-Wunused-but-set-parameter]
uffd_flags_t uffd_flags)
^
mm/userfaultfd.c:711:23: warning: parameter 'uffd_flags' set but not used [-Wunused-but-set-parameter]
uffd_flags_t uffd_flags)
^
2 warnings generated.
vim +/uffd_flags +700 mm/userfaultfd.c
c1a4de99fada21 Andrea Arcangeli 2015-09-04 697
c1a4de99fada21 Andrea Arcangeli 2015-09-04 698 ssize_t mfill_zeropage(struct mm_struct *dst_mm, unsigned long start,
0b36999093ff22 Nadav Amit 2022-06-19 699 unsigned long len, atomic_t *mmap_changing,
0b36999093ff22 Nadav Amit 2022-06-19 @700 uffd_flags_t uffd_flags)
c1a4de99fada21 Andrea Arcangeli 2015-09-04 701 {
ad1b8120bf00d2 Nadav Amit 2022-06-19 702 /* There is no cost for setting the access bit of a zeropage */
ad1b8120bf00d2 Nadav Amit 2022-06-19 703 uffd_flags |= UFFD_FLAGS_ACCESS_LIKELY;
ad1b8120bf00d2 Nadav Amit 2022-06-19 704
f619147104c8ea Axel Rasmussen 2021-05-04 705 return __mcopy_atomic(dst_mm, start, 0, len, MCOPY_ATOMIC_ZEROPAGE,
f619147104c8ea Axel Rasmussen 2021-05-04 706 mmap_changing, 0);
f619147104c8ea Axel Rasmussen 2021-05-04 707 }
f619147104c8ea Axel Rasmussen 2021-05-04 708
--
0-DAY CI Kernel Test Service
https://01.org/lkp
next prev parent reply other threads:[~2022-06-20 10:34 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-19 23:34 [RFC PATCH v2 0/5] userfaultfd: support access/write hints Nadav Amit
2022-06-19 23:34 ` [RFC PATCH v2 1/5] userfaultfd: introduce uffd_flags Nadav Amit
2022-06-21 8:41 ` David Hildenbrand
2022-06-21 15:31 ` Peter Xu
2022-06-21 15:29 ` Peter Xu
2022-06-21 17:41 ` Nadav Amit
2022-06-19 23:34 ` [RFC PATCH v2 2/5] userfaultfd: introduce access-likely mode for copy/wp operations Nadav Amit
2022-06-20 10:33 ` kernel test robot [this message]
2022-06-21 8:48 ` David Hildenbrand
2022-06-21 15:42 ` Peter Xu
2022-06-21 17:27 ` Nadav Amit
2022-06-19 23:34 ` [RFC PATCH v2 3/5] userfaultfd: introduce write-likely " Nadav Amit
2022-06-21 16:38 ` Peter Xu
2022-06-21 17:14 ` Nadav Amit
2022-06-21 18:10 ` Peter Xu
2022-06-21 18:30 ` Nadav Amit
2022-06-21 18:43 ` Peter Xu
2022-06-19 23:34 ` [RFC PATCH v2 4/5] userfaultfd: zero access/write hints Nadav Amit
2022-06-20 18:06 ` kernel test robot
2022-06-21 17:04 ` Peter Xu
2022-06-21 17:17 ` Nadav Amit
2022-06-21 17:56 ` Peter Xu
2022-06-21 17:58 ` Nadav Amit
2022-06-19 23:34 ` [RFC PATCH v2 5/5] selftest/userfaultfd: test read/write hints Nadav Amit
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