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Message-ID: <202102160129.vhOyJ2bi-lkp@intel.com>
Date: Tue, 16 Feb 2021 01:49:41 +0800
From: kernel test robot <lkp@...el.com>
To: Alexey Gladkov <gladkov.alexey@...il.com>,
LKML <linux-kernel@...r.kernel.org>, io-uring@...r.kernel.org,
Kernel Hardening <kernel-hardening@...ts.openwall.com>,
Linux Containers <containers@...ts.linux-foundation.org>,
linux-mm@...ck.org
Cc: kbuild-all@...ts.01.org, Alexey Gladkov <legion@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>,
Christian Brauner <christian.brauner@...ntu.com>,
"Eric W . Biederman" <ebiederm@...ssion.com>
Subject: Re: [PATCH v6 6/7] Reimplement RLIMIT_MEMLOCK on top of ucounts
Hi Alexey,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on kselftest/next]
[also build test ERROR on linux/master linus/master v5.11 next-20210212]
[cannot apply to hnaz-linux-mm/master]
[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/0day-ci/linux/commits/Alexey-Gladkov/Count-rlimits-in-each-user-namespace/20210215-204524
base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next
config: openrisc-randconfig-r001-20210215 (attached as .config)
compiler: or1k-linux-gcc (GCC) 9.3.0
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/0day-ci/linux/commit/f009495a8def89a71b9e0b9025a39379d6f9097d
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Alexey-Gladkov/Count-rlimits-in-each-user-namespace/20210215-204524
git checkout f009495a8def89a71b9e0b9025a39379d6f9097d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=openrisc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
mm/mmap.c: In function 'ksys_mmap_pgoff':
>> mm/mmap.c:1626:5: error: passing argument 4 of 'hugetlb_file_setup' from incompatible pointer type [-Werror=incompatible-pointer-types]
1626 | &cred, HUGETLB_ANONHUGE_INODE,
| ^~~~~
| |
| const struct cred **
In file included from mm/mmap.c:28:
include/linux/hugetlb.h:457:17: note: expected 'struct cred **' but argument is of type 'const struct cred **'
457 | struct cred **cred, int creat_flags,
| ~~~~~~~~~~~~~~^~~~
cc1: some warnings being treated as errors
--
mm/memfd.c: In function '__do_sys_memfd_create':
>> mm/memfd.c:301:52: error: passing argument 4 of 'hugetlb_file_setup' from incompatible pointer type [-Werror=incompatible-pointer-types]
301 | file = hugetlb_file_setup(name, 0, VM_NORESERVE, &cred,
| ^~~~~
| |
| const struct cred **
In file included from mm/memfd.c:18:
include/linux/hugetlb.h:457:17: note: expected 'struct cred **' but argument is of type 'const struct cred **'
457 | struct cred **cred, int creat_flags,
| ~~~~~~~~~~~~~~^~~~
cc1: some warnings being treated as errors
--
ipc/shm.c: In function 'newseg':
>> ipc/shm.c:653:5: error: passing argument 4 of 'hugetlb_file_setup' from incompatible pointer type [-Werror=incompatible-pointer-types]
653 | &shp->mlock_cred, HUGETLB_SHMFS_INODE,
| ^~~~~~~~~~~~~~~~
| |
| const struct cred **
In file included from ipc/shm.c:30:
include/linux/hugetlb.h:457:17: note: expected 'struct cred **' but argument is of type 'const struct cred **'
457 | struct cred **cred, int creat_flags,
| ~~~~~~~~~~~~~~^~~~
cc1: some warnings being treated as errors
vim +/hugetlb_file_setup +1626 mm/mmap.c
1590
1591 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1592 unsigned long prot, unsigned long flags,
1593 unsigned long fd, unsigned long pgoff)
1594 {
1595 struct file *file = NULL;
1596 unsigned long retval;
1597
1598 if (!(flags & MAP_ANONYMOUS)) {
1599 audit_mmap_fd(fd, flags);
1600 file = fget(fd);
1601 if (!file)
1602 return -EBADF;
1603 if (is_file_hugepages(file)) {
1604 len = ALIGN(len, huge_page_size(hstate_file(file)));
1605 } else if (unlikely(flags & MAP_HUGETLB)) {
1606 retval = -EINVAL;
1607 goto out_fput;
1608 }
1609 } else if (flags & MAP_HUGETLB) {
1610 const struct cred *cred;
1611 struct hstate *hs;
1612
1613 hs = hstate_sizelog((flags >> MAP_HUGE_SHIFT) & MAP_HUGE_MASK);
1614 if (!hs)
1615 return -EINVAL;
1616
1617 len = ALIGN(len, huge_page_size(hs));
1618 /*
1619 * VM_NORESERVE is used because the reservations will be
1620 * taken when vm_ops->mmap() is called
1621 * A dummy user value is used because we are not locking
1622 * memory so no accounting is necessary
1623 */
1624 file = hugetlb_file_setup(HUGETLB_ANON_FILE, len,
1625 VM_NORESERVE,
> 1626 &cred, HUGETLB_ANONHUGE_INODE,
1627 (flags >> MAP_HUGE_SHIFT) & MAP_HUGE_MASK);
1628 if (IS_ERR(file))
1629 return PTR_ERR(file);
1630 }
1631
1632 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1633
1634 retval = vm_mmap_pgoff(file, addr, len, prot, flags, pgoff);
1635 out_fput:
1636 if (file)
1637 fput(file);
1638 return retval;
1639 }
1640
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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