From: kernel test robot <lkp@intel.com>
To: "Muhammad Usama Anjum" <usama.anjum@collabora.com>,
"Peter Xu" <peterx@redhat.com>,
"David Hildenbrand" <david@redhat.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Michał Mirosław" <emmir@google.com>,
"Andrei Vagin" <avagin@gmail.com>,
"Danylo Mocherniuk" <mdanylo@google.com>,
"Paul Gofman" <pgofman@codeweavers.com>,
"Cyrill Gorcunov" <gorcunov@gmail.com>,
"Mike Rapoport" <rppt@kernel.org>,
"Nadav Amit" <namit@vmware.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Linux Memory Management List <linux-mm@kvack.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Shuah Khan <skhan@linuxfoundation.org>,
Christian Brauner <brauner@kernel.org>,
Yang Shi <shy828301@gmail.com>, Vlastimil Babka <vbabka@suse.cz>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>,
Yun Zhou <yun.zhou@windriver.com>,
Suren Baghdasaryan <surenb@google.com>,
Alex Sierra <alex.sierra@amd.com>,
Muhammad Usama Anjum <usama.anjum@collabora.com>,
Matthew Wilcox <willy@infradead.org>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
Axel Rasmussen <axelrasmussen@google.com>,
"Gustavo A . R . Silva" <gustavoars@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kselftest@vger.kernel.org, Greg KH <greg@kroah.com>
Subject: Re: [PATCH v18 2/5] fs/proc/task_mmu: Implement IOCTL to get and optionally clear info about PTEs
Date: Wed, 14 Jun 2023 00:11:54 +0800 [thread overview]
Message-ID: <202306132324.Npiix2ct-lkp@intel.com> (raw)
In-Reply-To: <20230613102905.2808371-3-usama.anjum@collabora.com>
Hi Muhammad,
kernel test robot noticed the following build warnings:
[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on next-20230613]
[cannot apply to linus/master v6.4-rc6]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Muhammad-Usama-Anjum/userfaultfd-UFFD_FEATURE_WP_ASYNC/20230613-183334
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20230613102905.2808371-3-usama.anjum%40collabora.com
patch subject: [PATCH v18 2/5] fs/proc/task_mmu: Implement IOCTL to get and optionally clear info about PTEs
config: hexagon-randconfig-r041-20230612 (https://download.01.org/0day-ci/archive/20230613/202306132324.Npiix2ct-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build):
mkdir -p ~/bin
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git
git fetch akpm-mm mm-everything
git checkout akpm-mm/mm-everything
b4 shazam https://lore.kernel.org/r/20230613102905.2808371-3-usama.anjum@collabora.com
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash fs/proc/
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306132324.Npiix2ct-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from fs/proc/task_mmu.c:3:
In file included from include/linux/mm_inline.h:7:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from fs/proc/task_mmu.c:3:
In file included from include/linux/mm_inline.h:7:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from fs/proc/task_mmu.c:3:
In file included from include/linux/mm_inline.h:7:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
>> fs/proc/task_mmu.c:1866:18: warning: shift count >= width of type [-Wshift-count-overflow]
1866 | if ((p->flags & PM_SCAN_OP_WRITE) && (!userfaultfd_wp_async(vma) ||
| ^~~~~~~~~~~~~~~~
fs/proc/task_mmu.c:1769:26: note: expanded from macro 'PM_SCAN_OP_WRITE'
1769 | #define PM_SCAN_OP_WRITE BIT(63)
| ^~~~~~~
include/vdso/bits.h:7:26: note: expanded from macro 'BIT'
7 | #define BIT(nr) (UL(1) << (nr))
| ^ ~~~~
fs/proc/task_mmu.c:2102:22: warning: shift count >= width of type [-Wshift-count-overflow]
2102 | PAGE_IS_WRITTEN) ? PM_SCAN_OP_WRITE : 0;
| ^~~~~~~~~~~~~~~~
fs/proc/task_mmu.c:1769:26: note: expanded from macro 'PM_SCAN_OP_WRITE'
1769 | #define PM_SCAN_OP_WRITE BIT(63)
| ^~~~~~~
include/vdso/bits.h:7:26: note: expanded from macro 'BIT'
7 | #define BIT(nr) (UL(1) << (nr))
| ^ ~~~~
8 warnings generated.
vim +1866 fs/proc/task_mmu.c
1859
1860 static int pagemap_scan_test_walk(unsigned long start, unsigned long end,
1861 struct mm_walk *walk)
1862 {
1863 struct pagemap_scan_private *p = walk->private;
1864 struct vm_area_struct *vma = walk->vma;
1865
> 1866 if ((p->flags & PM_SCAN_OP_WRITE) && (!userfaultfd_wp_async(vma) ||
1867 !userfaultfd_wp_use_markers(vma)))
1868 return -EPERM;
1869
1870 if (vma->vm_flags & VM_PFNMAP)
1871 return 1;
1872
1873 return 0;
1874 }
1875
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2023-06-13 16:13 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-13 10:29 [PATCH v18 0/5] " Muhammad Usama Anjum
2023-06-13 10:29 ` [PATCH v18 1/5] userfaultfd: UFFD_FEATURE_WP_ASYNC Muhammad Usama Anjum
2023-06-13 10:29 ` [PATCH v18 2/5] fs/proc/task_mmu: Implement IOCTL to get and optionally clear info about PTEs Muhammad Usama Anjum
2023-06-13 16:11 ` kernel test robot [this message]
2023-06-13 22:36 ` Michał Mirosław
2023-06-14 13:46 ` Muhammad Usama Anjum
2023-06-14 15:14 ` Michał Mirosław
2023-06-14 17:09 ` Muhammad Usama Anjum
2023-06-14 18:00 ` Michał Mirosław
2023-06-15 13:58 ` Muhammad Usama Anjum
2023-06-15 14:52 ` Michał Mirosław
2023-06-15 14:58 ` Michał Mirosław
2023-06-15 15:16 ` Muhammad Usama Anjum
2023-06-15 20:00 ` Michał Mirosław
2023-06-16 6:37 ` Muhammad Usama Anjum
2023-06-15 15:11 ` Muhammad Usama Anjum
2023-06-15 20:07 ` Michał Mirosław
2023-06-16 6:57 ` Muhammad Usama Anjum
2023-06-19 8:16 ` Michał Mirosław
2023-06-20 11:15 ` Muhammad Usama Anjum
2023-06-20 22:05 ` Michał Mirosław
2023-06-21 4:44 ` Muhammad Usama Anjum
2023-06-21 13:24 ` Michał Mirosław
2023-06-14 4:09 ` Randy Dunlap
2023-06-14 11:36 ` Muhammad Usama Anjum
2023-06-13 10:29 ` [PATCH v18 3/5] tools headers UAPI: Update linux/fs.h with the kernel sources Muhammad Usama Anjum
2023-06-13 10:29 ` [PATCH v18 4/5] mm/pagemap: add documentation of PAGEMAP_SCAN IOCTL Muhammad Usama Anjum
2023-06-14 4:20 ` Randy Dunlap
2023-06-14 11:27 ` Muhammad Usama Anjum
2023-06-13 10:29 ` [PATCH v18 5/5] selftests: mm: add pagemap ioctl tests Muhammad Usama Anjum
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202306132324.Npiix2ct-lkp@intel.com \
--to=lkp@intel.com \
--cc=Liam.Howlett@oracle.com \
--cc=akpm@linux-foundation.org \
--cc=alex.sierra@amd.com \
--cc=avagin@gmail.com \
--cc=axelrasmussen@google.com \
--cc=brauner@kernel.org \
--cc=dan.j.williams@intel.com \
--cc=david@redhat.com \
--cc=emmir@google.com \
--cc=gorcunov@gmail.com \
--cc=greg@kroah.com \
--cc=gustavoars@kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=llvm@lists.linux.dev \
--cc=mdanylo@google.com \
--cc=namit@vmware.com \
--cc=oe-kbuild-all@lists.linux.dev \
--cc=pasha.tatashin@soleen.com \
--cc=peterx@redhat.com \
--cc=pgofman@codeweavers.com \
--cc=rppt@kernel.org \
--cc=shy828301@gmail.com \
--cc=skhan@linuxfoundation.org \
--cc=surenb@google.com \
--cc=usama.anjum@collabora.com \
--cc=vbabka@suse.cz \
--cc=viro@zeniv.linux.org.uk \
--cc=willy@infradead.org \
--cc=yun.zhou@windriver.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox