mmotm 2020-01-28-20-05 uploaded

mmotm 2020-01-28-20-05 uploaded

[akpm]

The mm-of-the-moment snapshot 2020-01-28-20-05 has been uploaded to

   http://www.ozlabs.org/~akpm/mmotm/

mmotm-readme.txt says

README for mm-of-the-moment:

http://www.ozlabs.org/~akpm/mmotm/

This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
more than once a week.

You will need quilt to apply these patches to the latest Linus release (5.x
or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
http://ozlabs.org/~akpm/mmotm/series

The file broken-out.tar.gz contains two datestamp files: .DATE and
.DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
followed by the base kernel version against which this patch series is to
be applied.

This tree is partially included in linux-next.  To see which patches are
included in linux-next, consult the `series' file.  Only the patches
within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
linux-next.


A full copy of the full kernel tree with the linux-next and mmotm patches
already applied is available through git within an hour of the mmotm
release.  Individual mmotm releases are tagged.  The master branch always
points to the latest release, so it's constantly rebasing.

	https://github.com/hnaz/linux-mm

The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second)
contains daily snapshots of the -mm tree.  It is updated more frequently
than mmotm, and is untested.

A git copy of this tree is also available at

	https://github.com/hnaz/linux-mm



This mmotm tree contains the following patches against 5.5:
(patches marked "*" will be included in linux-next)

  origin.patch
* lib-test_bitmap-correct-test-data-offsets-for-32-bit.patch
* memcg-fix-a-crash-in-wb_workfn-when-a-device-disappears.patch
* mm-mempolicyc-fix-out-of-bounds-write-in-mpol_parse_str.patch
* ocfs2-fix-the-oops-problem-when-write-cloned-file.patch
* mm-sparse-reset-sections-mem_map-when-fully-deactivated.patch
* mm-migratec-also-overwrite-error-when-it-is-bigger-than-zero.patch
* mm-memory_hotplug-fix-remove_memory-lockdep-splat.patch
* proc-kpageflags-prevent-an-integer-overflow-in-stable_page_flags.patch
* proc-kpageflags-do-not-use-uninitialized-struct-pages.patch
* x86-mm-split-vmalloc_sync_all.patch
* revert-ipcsem-remove-uneeded-sem_undo_list-lock-usage-in-exit_sem.patch
* mm-fix-uninitialized-memmaps-on-a-partially-populated-last-section.patch
* fs-proc-pagec-allow-inspection-of-last-section-and-fix-end-detection.patch
* mm-initialize-memmap-of-unavailable-memory-directly.patch
* mm-thp-remove-the-defer-list-related-code-since-this-will-not-happen.patch
* mm-move_pages-report-the-number-of-non-attempted-pages.patch
* scripts-spellingtxt-add-more-spellings-to-spellingtxt.patch
* scripts-spellingtxt-add-issus-typo.patch
* fs-ocfs-remove-unnecessary-assertion-in-dlm_migrate_lockres.patch
* ocfs2-remove-unneeded-semicolon.patch
* ocfs2-make-local-header-paths-relative-to-c-files.patch
* ocfs2-dlm-remove-redundant-assignment-to-ret.patch
* ocfs2-dlm-move-bits_to_bytes-to-bitopsh-for-wider-use.patch
* ocfs2-fix-a-null-pointer-dereference-when-call-ocfs2_update_inode_fsync_trans.patch
* ocfs2-use-ocfs2_update_inode_fsync_trans-to-access-t_tid-in-handle-h_transaction.patch
* ramfs-support-o_tmpfile.patch
  mm.patch
* mm-avoid-slub-allocation-while-holding-list_lock.patch
* kmemleak-turn-kmemleak_lock-and-object-lock-to-raw_spinlock_t.patch
* mm-debug-always-print-flags-in-dump_page.patch
* mm-clean-up-filemap_write_and_wait.patch
* mm-fix-gup_pud_range.patch
* mm-gupc-use-is_vm_hugetlb_page-to-check-whether-to-follow-huge.patch
* mm-gup-factor-out-duplicate-code-from-four-routines.patch
* mm-gup-move-try_get_compound_head-to-top-fix-minor-issues.patch
* mm-cleanup-__put_devmap_managed_page-vs-page_free.patch
* mm-devmap-refactor-1-based-refcounting-for-zone_device-pages.patch
* goldish_pipe-rename-local-pin_user_pages-routine.patch
* mm-fix-get_user_pages_remotes-handling-of-foll_longterm.patch
* vfio-fix-foll_longterm-use-simplify-get_user_pages_remote-call.patch
* mm-gup-allow-foll_force-for-get_user_pages_fast.patch
* ib-umem-use-get_user_pages_fast-to-pin-dma-pages.patch
* media-v4l2-core-set-pages-dirty-upon-releasing-dma-buffers.patch
* mm-gup-introduce-pin_user_pages-and-foll_pin.patch
* goldish_pipe-convert-to-pin_user_pages-and-put_user_page.patch
* ib-corehwumem-set-foll_pin-via-pin_user_pages-fix-up-odp.patch
* mm-process_vm_access-set-foll_pin-via-pin_user_pages_remote.patch
* drm-via-set-foll_pin-via-pin_user_pages_fast.patch
* fs-io_uring-set-foll_pin-via-pin_user_pages.patch
* net-xdp-set-foll_pin-via-pin_user_pages.patch
* media-v4l2-core-pin_user_pages-foll_pin-and-put_user_page-conversion.patch
* vfio-mm-pin_user_pages-foll_pin-and-put_user_page-conversion.patch
* powerpc-book3s64-convert-to-pin_user_pages-and-put_user_page.patch
* mm-gup_benchmark-use-proper-foll_write-flags-instead-of-hard-coding-1.patch
* mm-tree-wide-rename-put_user_page-to-unpin_user_page.patch
* swap_next-should-increase-position-index.patch
* mm-cleanup-some-useless-code.patch
* mm-vmscan-expose-cgroup_ino-for-memcg-reclaim-tracepoints.patch
* mm-pgmap-use-correct-alignment-when-looking-at-first-pfn-from-a-region.patch
* mm-mmap-fix-the-adjusted-length-error.patch
* mm-page_vma_mappedc-explicitly-compare-pfn-for-normal-hugetlbfs-and-thp-page.patch
* mm-tracing-print-symbol-name-for-kmem_alloc_node-call_site-events.patch
* lib-test_kasanc-fix-memory-leak-in-kmalloc_oob_krealloc_more.patch
* mm-early_remap-use-%pa-to-print-resource_size_t-variables.patch
* mm-page_alloc-skip-non-present-sections-on-zone-initialization.patch
* mm-page_alloc-fix-and-rework-pfn-handling-in-memmap_init_zone.patch
* mm-factor-out-next_present_section_nr.patch
* mm-remove-the-memory-isolate-notifier.patch
* mm-remove-count-parameter-from-has_unmovable_pages.patch
* mm-vmscanc-remove-unused-return-value-of-shrink_node.patch
* mm-vmscan-remove-prefetch_prev_lru_page.patch
* mm-vmscan-remove-unused-reclaim_off-reclaim_zone.patch
* mm-vmscan-remove-unused-reclaim_off-reclaim_zone-fix.patch
* tools-vm-slabinfo-fix-sanity-checks-enabling.patch
* mm-memblock-define-memblock_physmem_add.patch
* memblock-use-__func__-in-remaining-memblock_dbg-call-sites.patch
* mm-oom-avoid-printk-iteration-under-rcu.patch
* mm-oom-avoid-printk-iteration-under-rcu-fix.patch
* mm-oom-dump-stack-of-victim-when-reaping-failed.patch
* mm-huge_memoryc-use-head-to-check-huge-zero-page.patch
* mm-huge_memoryc-use-head-to-emphasize-the-purpose-of-page.patch
* mm-huge_memoryc-reduce-critical-section-protected-by-split_queue_lock.patch
* mm-migrate-remove-useless-mask-of-start-address.patch
* mm-migrate-clean-up-some-minor-coding-style.patch
* mm-migrate-add-stable-check-in-migrate_vma_insert_page.patch
* mm-thp-fix-defrag-setting-if-newline-is-not-used.patch
* mm-get-rid-of-odd-jump-labels-in-find_mergeable_anon_vma.patch
* drivers-base-memoryc-cache-memory-blocks-in-xarray-to-accelerate-lookup.patch
* drivers-base-memoryc-cache-memory-blocks-in-xarray-to-accelerate-lookup-fix.patch
* mm-memmap_init-update-variable-name-in-memmap_init_zone.patch
* mm-memory_hotplug-poison-memmap-in-remove_pfn_range_from_zone.patch
* mm-memory_hotplug-we-always-have-a-zone-in-find_smallestbiggest_section_pfn.patch
* mm-memory_hotplug-dont-check-for-all-holes-in-shrink_zone_span.patch
* mm-memory_hotplug-drop-local-variables-in-shrink_zone_span.patch
* mm-memory_hotplug-cleanup-__remove_pages.patch
* mm-memory_hotplug-drop-valid_start-valid_end-from-test_pages_in_a_zone.patch
* mm-memory_hotplug-pass-in-nid-to-online_pages.patch
* mm-hotplug-silence-a-lockdep-splat-with-printk.patch
* mm-page_isolation-fix-potential-warning-from-user.patch
* zswap-add-allocation-hysteresis-if-pool-limit-is-hit.patch
* zswap-potential-null-dereference-on-error-in-init_zswap.patch
* mm-clean-up-obsolete-check-on-space-in-page-flags.patch
* mm-remove-dead-code-totalram_pages_set.patch
* mm-drop-elements-hw-and-phys_callback-from-struct-memory_block.patch
* mm-fix-comments-related-to-node-reclaim.patch
* zram-try-to-avoid-worst-case-scenario-on-same-element-pages.patch
* zram-try-to-avoid-worst-case-scenario-on-same-element-pages-update.patch
* zram-fix-error-return-codes-not-being-returned-in-writeback_store.patch
* info-task-hung-in-generic_file_write_iter.patch
* info-task-hung-in-generic_file_write-fix.patch
* kernel-hung_taskc-monitor-killed-tasks.patch
* y2038-remove-ktime-to-from-timespec-timeval-conversion.patch
* y2038-remove-unused-time32-interfaces.patch
* y2038-hide-timeval-timespec-itimerval-itimerspec-types.patch
* add-helpers-for-kelvin-to-from-celsius-conversion.patch
* acpi-thermal-switch-to-use-linux-unitsh-helpers.patch
* platform-x86-asus-wmi-switch-to-use-linux-unitsh-helpers.patch
* platform-x86-intel_menlow-switch-to-use-linux-unitsh-helpers.patch
* thermal-int340x-switch-to-use-linux-unitsh-helpers.patch
* thermal-intel_pch-switch-to-use-linux-unitsh-helpers.patch
* nvme-hwmon-switch-to-use-linux-unitsh-helpers.patch
* thermal-remove-kelvin-to-from-celsius-conversion-helpers-from-linux-thermalh.patch
* iwlegacy-use-linux-unitsh-helpers.patch
* iwlegacy-use-linux-unitsh-helpers-fix.patch
* iwlwifi-use-linux-unitsh-helpers.patch
* thermal-armada-remove-unused-to_mcelsius-macro.patch
* iio-adc-qcom-vadc-common-use-linux-unitsh-helpers.patch
* maintainers-add-an-entry-for-kfifo.patch
* lib-zlib-add-s390-hardware-support-for-kernel-zlib_deflate.patch
* s390-boot-rename-heap_size-due-to-name-collision.patch
* lib-zlib-add-s390-hardware-support-for-kernel-zlib_inflate.patch
* s390-boot-add-dfltcc=-kernel-command-line-parameter.patch
* lib-zlib-add-zlib_deflate_dfltcc_enabled-function.patch
* btrfs-use-larger-zlib-buffer-for-s390-hardware-compression.patch
* lib-scatterlist-adjust-indentation-in-__sg_alloc_table.patch
* uapi-rename-ext2_swab-to-swab-and-share-globally-in-swabh.patch
* lib-find_bitc-join-_find_next_bit_le.patch
* lib-find_bitc-uninline-helper-_find_next_bit.patch
* string-add-stracpy-and-stracpy_pad-mechanisms.patch
* documentation-checkpatch-prefer-stracpy-strscpy-over-strcpy-strlcpy-strncpy.patch
* elf-smaller-code-generation-around-auxv-vector-fill.patch
* elf-fix-start_code-calculation.patch
* elf-dont-copy-elf-header-around.patch
* elf-better-codegen-around-current-mm.patch
* elf-make-bad_addr-unlikely.patch
* elf-coredump-allocate-core-elf-header-on-stack.patch
* elf-coredump-delete-duplicated-overflow-check.patch
* elf-coredump-allow-process-with-empty-address-space-to-coredump.patch
* init-mainc-log-arguments-and-environment-passed-to-init.patch
* init-mainc-remove-unnecessary-repair_env_string-in-do_initcall_level.patch
* init-mainc-fix-quoted-value-handling-in-unknown_bootoption.patch
* init-fix-misleading-this-architecture-does-not-have-kernel-memory-protection-message.patch
* reiserfs-prevent-null-pointer-dereference-in-reiserfs_insert_item.patch
* execve-warn-if-process-starts-with-executable-stack.patch
* io-mapping-use-phys_pfn-macro-in-io_mapping_map_atomic_wc.patch
* kernel-relayc-fix-read_pos-error-when-multiple-readers.patch
* aio-simplify-read_events.patch
* kcov-ignore-fault-inject-and-stacktrace.patch
* mips-kdb-remove-old-workaround-for-backtracing-on-other-cpus.patch
* kdb-kdb_current_regs-should-be-private.patch
* kdb-kdb_current_task-shouldnt-be-exported.patch
* kdb-gid-rid-of-implicit-setting-of-the-current-task-regs.patch
* kdb-get-rid-of-confusing-diag-msg-from-rd-if-current-task-has-no-regs.patch
* smp_mb__beforeafter_atomic-update-documentation.patch
* ipc-mqueuec-remove-duplicated-code.patch
* ipc-mqueuec-update-document-memory-barriers.patch
* ipc-msgc-update-and-document-memory-barriers.patch
* ipc-semc-document-and-update-memory-barriers.patch
* ipc-consolidate-all-xxxctl_down-functions.patch
* ipc-consolidate-all-xxxctl_down-functions-fix.patch
  linux-next.patch
  linux-next-fix.patch
  linux-next-git-rejects.patch
* drivers-block-null_blk_mainc-fix-layout.patch
* drivers-block-null_blk_mainc-fix-uninitialized-var-warnings.patch
* pinctrl-fix-pxa2xxc-build-warnings.patch
* mm-remove-__krealloc.patch
* mm-add-generic-pd_leaf-macros.patch
* arc-mm-add-pd_leaf-definitions.patch
* arm-mm-add-pd_leaf-definitions.patch
* arm64-mm-add-pd_leaf-definitions.patch
* mips-mm-add-pd_leaf-definitions.patch
* powerpc-mm-add-pd_leaf-definitions.patch
* riscv-mm-add-pd_leaf-definitions.patch
* s390-mm-add-pd_leaf-definitions.patch
* sparc-mm-add-pd_leaf-definitions.patch
* x86-mm-add-pd_leaf-definitions.patch
* mm-pagewalk-add-p4d_entry-and-pgd_entry.patch
* mm-pagewalk-add-p4d_entry-and-pgd_entry-fix.patch
* mm-pagewalk-allow-walking-without-vma.patch
* mm-pagewalk-dont-lock-ptes-for-walk_page_range_novma.patch
* mm-pagewalk-fix-termination-condition-in-walk_pte_range.patch
* mm-pagewalk-add-depth-parameter-to-pte_hole.patch
* x86-mm-point-to-struct-seq_file-from-struct-pg_state.patch
* x86-mmefi-convert-ptdump_walk_pgd_level-to-take-a-mm_struct.patch
* x86-mm-convert-ptdump_walk_pgd_level_debugfs-to-take-an-mm_struct.patch
* mm-add-generic-ptdump.patch
* x86-mm-convert-dump_pagetables-to-use-walk_page_range.patch
* arm64-mm-convert-mm-dumpc-to-use-walk_page_range.patch
* arm64-mm-display-non-present-entries-in-ptdump.patch
* mm-ptdump-reduce-level-numbers-by-1-in-note_page.patch
* x86-mm-avoid-allocating-struct-mm_struct-on-the-stack.patch
* x86-mm-avoid-allocating-struct-mm_struct-on-the-stack-fix.patch
* powerpc-mmu_gather-enable-rcu_table_free-even-for-smp-case.patch
* mm-mmu_gather-invalidate-tlb-correctly-on-batch-allocation-failure-and-flush.patch
* asm-generic-tlb-avoid-potential-double-flush.patch
* asm-gemeric-tlb-remove-stray-function-declarations.patch
* asm-generic-tlb-add-missing-config-symbol.patch
* asm-generic-tlb-rename-have_rcu_table_free.patch
* asm-generic-tlb-rename-have_mmu_gather_page_size.patch
* asm-generic-tlb-rename-have_mmu_gather_no_gather.patch
* asm-generic-tlb-provide-mmu_gather_table_free.patch
* proc-decouple-proc-from-vfs-with-struct-proc_ops.patch
* proc-convert-everything-to-struct-proc_ops.patch
* proc-convert-everything-to-struct-proc_ops-fix.patch
* proc-convert-everything-to-struct-proc_ops-fix-2.patch
* lib-string-add-strnchrnul.patch
* bitops-more-bits_to_-macros.patch
* lib-add-test-for-bitmap_parse.patch
* lib-add-test-for-bitmap_parse-fix.patch
* lib-add-test-for-bitmap_parse-fix-2.patch
* lib-make-bitmap_parse_user-a-wrapper-on-bitmap_parse.patch
* lib-rework-bitmap_parse.patch
* lib-new-testcases-for-bitmap_parse_user.patch
* cpumask-dont-calculate-length-of-the-input-string.patch
* treewide-remove-redundent-is_err-before-error-code-check.patch
* arm-dma-api-fix-max_pfn-off-by-one-error-in-__dma_supported.patch
* drivers-tty-serial-sh-scic-suppress-warning.patch
* fix-read-buffer-overflow-in-delta-ipc.patch
  make-sure-nobodys-leaking-resources.patch
  releasing-resources-with-children.patch
  mutex-subsystem-synchro-test-module.patch
  kernel-forkc-export-kernel_thread-to-modules.patch
  workaround-for-a-pci-restoring-bug.patch

Re: mmotm 2020-01-28-20-05 uploaded (net/mptcp/subflow.c)

[Randy Dunlap]

On 1/28/20 8:06 PM, akpm@linux-foundation.org wrote:
> The mm-of-the-moment snapshot 2020-01-28-20-05 has been uploaded to
> 
>    http://www.ozlabs.org/~akpm/mmotm/
> 
> mmotm-readme.txt says
> 
> README for mm-of-the-moment:
> 
> http://www.ozlabs.org/~akpm/mmotm/
> 
> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> more than once a week.
> 

Lots of build errors when CONFIG_PROC_FS is not set/enabled:

(truncation of around 500 lines of errors & warnings:)

In file included from ../include/asm-generic/percpu.h:7:0,
                 from ../arch/x86/include/asm/percpu.h:556,
                 from ../arch/x86/include/asm/preempt.h:6,
                 from ../include/linux/preempt.h:78,
                 from ../include/linux/spinlock.h:51,
                 from ../include/linux/seqlock.h:36,
                 from ../include/linux/time.h:6,
                 from ../include/linux/stat.h:19,
                 from ../include/linux/module.h:13,
                 from ../net/mptcp/subflow.c:10:
../net/mptcp/subflow.c: In function ‘mptcp_subflow_create_socket’:
../net/mptcp/subflow.c:624:25: error: ‘struct netns_core’ has no member named ‘sock_inuse’
  this_cpu_add(*net->core.sock_inuse, 1);
                         ^
../include/linux/percpu-defs.h:219:47: note: in definition of macro ‘__verify_pcpu_ptr’
  const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
                                               ^~~
../include/linux/percpu-defs.h:509:33: note: in expansion of macro ‘__pcpu_size_call’
 #define this_cpu_add(pcp, val)  __pcpu_size_call(this_cpu_add_, pcp, val)
                                 ^~~~~~~~~~~~~~~~
../net/mptcp/subflow.c:624:2: note: in expansion of macro ‘this_cpu_add’
  this_cpu_add(*net->core.sock_inuse, 1);
  ^~~~~~~~~~~~
../net/mptcp/subflow.c:624:25: error: ‘struct netns_core’ has no member named ‘sock_inuse’
  this_cpu_add(*net->core.sock_inuse, 1);
                         ^
../include/linux/percpu-defs.h:376:16: note: in definition of macro ‘__pcpu_size_call’
  switch(sizeof(variable)) {     \
                ^~~~~~~~
../net/mptcp/subflow.c:624:2: note: in expansion of macro ‘this_cpu_add’
  this_cpu_add(*net->core.sock_inuse, 1);
  ^~~~~~~~~~~~
In file included from ../arch/x86/include/asm/preempt.h:6:0,
                 from ../include/linux/preempt.h:78,
                 from ../include/linux/spinlock.h:51,
                 from ../include/linux/seqlock.h:36,
                 from ../include/linux/time.h:6,
                 from ../include/linux/stat.h:19,
                 from ../include/linux/module.h:13,
                 from ../net/mptcp/subflow.c:10:
../net/mptcp/subflow.c:624:25: error: ‘struct netns_core’ has no member named ‘sock_inuse’
  this_cpu_add(*net->core.sock_inuse, 1);
                         ^
../arch/x86/include/asm/percpu.h:129:17: note: in definition of macro ‘percpu_add_op’
  typedef typeof(var) pao_T__;     \
                 ^~~
../include/linux/percpu-defs.h:377:11: note: in expansion of macro ‘this_cpu_add_1’
   case 1: stem##1(variable, __VA_ARGS__);break;  \
           ^~~~
../include/linux/percpu-defs.h:509:33: note: in expansion of macro ‘__pcpu_size_call’
 #define this_cpu_add(pcp, val)  __pcpu_size_call(this_cpu_add_, pcp, val)
                                 ^~~~~~~~~~~~~~~~
../net/mptcp/subflow.c:624:2: note: in expansion of macro ‘this_cpu_add’
  this_cpu_add(*net->core.sock_inuse, 1);
  ^~~~~~~~~~~~
../net/mptcp/subflow.c:624:25: error: ‘struct netns_core’ has no member named ‘sock_inuse’
  this_cpu_add(*net->core.sock_inuse, 1);
                         ^
../arch/x86/include/asm/percpu.h:138:17: note: in definition of macro ‘percpu_add_op’
  switch (sizeof(var)) {      \
                 ^~~
../include/linux/percpu-defs.h:377:11: note: in expansion of macro ‘this_cpu_add_1’
   case 1: stem##1(variable, __VA_ARGS__);break;  \
           ^~~~
../include/linux/percpu-defs.h:509:33: note: in expansion of macro ‘__pcpu_size_call’
 #define this_cpu_add(pcp, val)  __pcpu_size_call(this_cpu_add_, pcp, val)
                                 ^~~~~~~~~~~~~~~~
../net/mptcp/subflow.c:624:2: note: in expansion of macro ‘this_cpu_add’
  this_cpu_add(*net->core.sock_inuse, 1);
  ^~~~~~~~~~~~
../net/mptcp/subflow.c:624:25: error: ‘struct netns_core’ has no member named ‘sock_inuse’
  this_cpu_add(*net->core.sock_inuse, 1);
                         ^
../arch/x86/include/asm/percpu.h:141:45: note: in definition of macro ‘percpu_add_op’
    asm qual ("incb "__percpu_arg(0) : "+m" (var)); \
                                             ^~~
../include/linux/percpu-defs.h:377:11: note: in expansion of macro ‘this_cpu_add_1’
   case 1: stem##1(variable, __VA_ARGS__);break;  \
           ^~~~
../include/linux/percpu-defs.h:509:33: note: in expansion of macro ‘__pcpu_size_call’
 #define this_cpu_add(pcp, val)  __pcpu_size_call(this_cpu_add_, pcp, val)
                                 ^~~~~~~~~~~~~~~~
../net/mptcp/subflow.c:624:2: note: in expansion of macro ‘this_cpu_add’
  this_cpu_add(*net->core.sock_inuse, 1);
  ^~~~~~~~~~~~
../net/mptcp/subflow.c:624:25: error: ‘struct netns_core’ has no member named ‘sock_inuse’
  this_cpu_add(*net->core.sock_inuse, 1);
                         ^
../arch/x86/include/asm/percpu.h:143:45: note: in definition of macro ‘percpu_add_op’
    asm qual ("decb "__percpu_arg(0) : "+m" (var)); \
                                             ^~~
../include/linux/percpu-defs.h:377:11: note: in expansion of macro ‘this_cpu_add_1’
   case 1: stem##1(variable, __VA_ARGS__);break;  \
           ^~~~
../include/linux/percpu-defs.h:509:33: note: in expansion of macro ‘__pcpu_size_call’
 #define this_cpu_add(pcp, val)  __pcpu_size_call(this_cpu_add_, pcp, val)
                                 ^~~~~~~~~~~~~~~~
../net/mptcp/subflow.c:624:2: note: in expansion of macro ‘this_cpu_add’
  this_cpu_add(*net->core.sock_inuse, 1);
  ^~~~~~~~~~~~
../net/mptcp/subflow.c:624:25: error: ‘struct netns_core’ has no member named ‘sock_inuse’
  this_cpu_add(*net->core.sock_inuse, 1);
                         ^




-- 
~Randy
Reported-by: Randy Dunlap <rdunlap@infradead.org>

Re: mmotm 2020-01-28-20-05 uploaded (security/security.c)

[Randy Dunlap]

On 1/28/20 8:06 PM, akpm@linux-foundation.org wrote:
> The mm-of-the-moment snapshot 2020-01-28-20-05 has been uploaded to
> 
>    http://www.ozlabs.org/~akpm/mmotm/
> 
> mmotm-readme.txt says
> 
> README for mm-of-the-moment:
> 
> http://www.ozlabs.org/~akpm/mmotm/
> 
> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> more than once a week.
> 

security/security.c contains duplicate lines for <lockdown_reasons> array:

/*
 * These are descriptions of the reasons that can be passed to the
 * security_locked_down() LSM hook. Placing this array here allows
 * all security modules to use the same descriptions for auditing
 * purposes.
 */
const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1] = {
	[LOCKDOWN_NONE] = "none",
	[LOCKDOWN_MODULE_SIGNATURE] = "unsigned module loading",
	[LOCKDOWN_DEV_MEM] = "/dev/mem,kmem,port",
	[LOCKDOWN_EFI_TEST] = "/dev/efi_test access",
	[LOCKDOWN_KEXEC] = "kexec of unsigned images",
	[LOCKDOWN_HIBERNATION] = "hibernation",
	[LOCKDOWN_PCI_ACCESS] = "direct PCI access",
	[LOCKDOWN_IOPORT] = "raw io port access",
	[LOCKDOWN_MSR] = "raw MSR access",
	[LOCKDOWN_ACPI_TABLES] = "modifying ACPI tables",
	[LOCKDOWN_PCMCIA_CIS] = "direct PCMCIA CIS storage",
	[LOCKDOWN_TIOCSSERIAL] = "reconfiguration of serial port IO",
	[LOCKDOWN_MODULE_PARAMETERS] = "unsafe module parameters",
	[LOCKDOWN_MMIOTRACE] = "unsafe mmio",
	[LOCKDOWN_DEBUGFS] = "debugfs access",
	[LOCKDOWN_XMON_WR] = "xmon write access",
	[LOCKDOWN_INTEGRITY_MAX] = "integrity",
	[LOCKDOWN_KCORE] = "/proc/kcore access",
	[LOCKDOWN_KPROBES] = "use of kprobes",
	[LOCKDOWN_BPF_READ] = "use of bpf to read kernel RAM",
	[LOCKDOWN_PERF] = "unsafe use of perf",
	[LOCKDOWN_TRACEFS] = "use of tracefs",
	[LOCKDOWN_XMON_RW] = "xmon read and write access",
	[LOCKDOWN_CONFIDENTIALITY_MAX] = "confidentiality",
};

/*
 * These are descriptions of the reasons that can be passed to the
 * security_locked_down() LSM hook. Placing this array here allows
 * all security modules to use the same descriptions for auditing
 * purposes.
 */
const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1] = {
	[LOCKDOWN_NONE] = "none",
	[LOCKDOWN_MODULE_SIGNATURE] = "unsigned module loading",
	[LOCKDOWN_DEV_MEM] = "/dev/mem,kmem,port",
	[LOCKDOWN_EFI_TEST] = "/dev/efi_test access",
	[LOCKDOWN_KEXEC] = "kexec of unsigned images",
	[LOCKDOWN_HIBERNATION] = "hibernation",
	[LOCKDOWN_PCI_ACCESS] = "direct PCI access",
	[LOCKDOWN_IOPORT] = "raw io port access",
	[LOCKDOWN_MSR] = "raw MSR access",
	[LOCKDOWN_ACPI_TABLES] = "modifying ACPI tables",
	[LOCKDOWN_PCMCIA_CIS] = "direct PCMCIA CIS storage",
	[LOCKDOWN_TIOCSSERIAL] = "reconfiguration of serial port IO",
	[LOCKDOWN_MODULE_PARAMETERS] = "unsafe module parameters",
	[LOCKDOWN_MMIOTRACE] = "unsafe mmio",
	[LOCKDOWN_DEBUGFS] = "debugfs access",
	[LOCKDOWN_XMON_WR] = "xmon write access",
	[LOCKDOWN_INTEGRITY_MAX] = "integrity",
	[LOCKDOWN_KCORE] = "/proc/kcore access",
	[LOCKDOWN_KPROBES] = "use of kprobes",
	[LOCKDOWN_BPF_READ] = "use of bpf to read kernel RAM",
	[LOCKDOWN_PERF] = "unsafe use of perf",
	[LOCKDOWN_TRACEFS] = "use of tracefs",
	[LOCKDOWN_XMON_RW] = "xmon read and write access",
	[LOCKDOWN_CONFIDENTIALITY_MAX] = "confidentiality",
};



Stephen, you might delete half of those for linux-next....

-- 
~Randy

Re: mmotm 2020-01-28-20-05 uploaded (security/security.c)

[Paul Moore]

On Tue, Jan 28, 2020 at 11:52 PM Randy Dunlap <rdunlap@infradead.org> wrote:
> On 1/28/20 8:06 PM, akpm@linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2020-01-28-20-05 has been uploaded to
> >
> >    http://www.ozlabs.org/~akpm/mmotm/
> >
> > mmotm-readme.txt says
> >
> > README for mm-of-the-moment:
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> > more than once a week.
> >
>
> security/security.c contains duplicate lines for <lockdown_reasons> array:

Hmmm.  Commit 59438b46471a ("security,lockdown,selinux: implement
SELinux lockdown"), which was merged into Linus' tree during the
current merge window, moved the lockdown_reasons array from
security/lockdown/lockdown.c to security/security.c; is there another
tree in linux-next which is moving lockdown_reasons into
security/security.c?

-- 
paul moore
www.paul-moore.com

Re: mmotm 2020-01-28-20-05 uploaded (security/security.c)

[Randy Dunlap]

On 1/29/20 5:51 AM, Paul Moore wrote:
> On Tue, Jan 28, 2020 at 11:52 PM Randy Dunlap <rdunlap@infradead.org> wrote:
>> On 1/28/20 8:06 PM, akpm@linux-foundation.org wrote:
>>> The mm-of-the-moment snapshot 2020-01-28-20-05 has been uploaded to
>>>
>>>    http://www.ozlabs.org/~akpm/mmotm/
>>>
>>> mmotm-readme.txt says
>>>
>>> README for mm-of-the-moment:
>>>
>>> http://www.ozlabs.org/~akpm/mmotm/
>>>
>>> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
>>> more than once a week.
>>>
>>
>> security/security.c contains duplicate lines for <lockdown_reasons> array:
> 
> Hmmm.  Commit 59438b46471a ("security,lockdown,selinux: implement
> SELinux lockdown"), which was merged into Linus' tree during the
> current merge window, moved the lockdown_reasons array from
> security/lockdown/lockdown.c to security/security.c; is there another
> tree in linux-next which is moving lockdown_reasons into
> security/security.c?
> 

Somehow in mmotm those lines of code were merged 2x:
once from origin.patch and once from linux-next.patch.

Looks more like a mmotm merge issue, not a security/ issue.

-- 
~Randy

Re: mmotm 2020-01-28-20-05 uploaded (objtool warnings)

[Josh Poimboeuf]

On Wed, Jan 29, 2020 at 08:43:35AM -0800, Randy Dunlap wrote:
> On 1/28/20 8:06 PM, akpm@linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2020-01-28-20-05 has been uploaded to
> > 
> >    http://www.ozlabs.org/~akpm/mmotm/
> > 
> > mmotm-readme.txt says
> > 
> > README for mm-of-the-moment:
> > 
> > http://www.ozlabs.org/~akpm/mmotm/
> > 
> > This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> > more than once a week.
> > 
> 
> on x86_64: (duh)
> 
> > gcc --version
> gcc (SUSE Linux) 7.5.0
> 
> 
> fs/namei.o: warning: objtool: do_renameat2()+0x46d: unreachable instruction
> kernel/exit.o: warning: objtool: __x64_sys_exit_group()+0x2b: unreachable instruction
> drivers/iio/adc/vf610_adc.o: warning: objtool: vf610_set_conversion_mode()+0x4e: unreachable instruction
> 
> 
> Full randconfig file is attached.
> 
> Do you want the .o files, Josh?

I'm able to recreate with your config, so I don't need the .o files.

Thanks.

-- 
Josh

Re: mmotm 2020-01-28-20-05 uploaded (security/security.c)

[Stephen Rothwell]

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Hi Randy,

On Tue, 28 Jan 2020 20:52:28 -0800 Randy Dunlap <rdunlap@infradead.org> wrote:
>
> security/security.c contains duplicate lines for <lockdown_reasons> array:
> 
> Stephen, you might delete half of those for linux-next....

I did not get that in my import of mmotm today.  But I actually git
merge the appropriate part of linux-next rather than applying the
linux-next.patch from mmotm - so that may have taken care of it.

-- 
Cheers,
Stephen Rothwell

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