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Commit Graph

914290 Commits

Author SHA1 Message Date
Linus Torvalds
04de788e61 NFS client updates for Linux 5.7
Highlights include:
 
 Stable fixes:
 - Fix a page leak in nfs_destroy_unlinked_subrequests()
 - Fix use-after-free issues in nfs_pageio_add_request()
 - Fix new mount code constant_table array definitions
 - finish_automount() requires us to hold 2 refs to the mount record
 
 Features:
 - Improve the accuracy of telldir/seekdir by using 64-bit cookies when
   possible.
 - Allow one RDMA active connection and several zombie connections to
   prevent blocking if the remote server is unresponsive.
 - Limit the size of the NFS access cache by default
 - Reduce the number of references to credentials that are taken by NFS
 - pNFS files and flexfiles drivers now support per-layout segment
   COMMIT lists.
 - Enable partial-file layout segments in the pNFS/flexfiles driver.
 - Add support for CB_RECALL_ANY to the pNFS flexfiles layout type
 - pNFS/flexfiles Report NFS4ERR_DELAY and NFS4ERR_GRACE errors from
   the DS using the layouterror mechanism.
 
 Bugfixes and cleanups:
 - SUNRPC: Fix krb5p regressions
 - Don't specify NFS version in "UDP not supported" error
 - nfsroot: set tcp as the default transport protocol
 - pnfs: Return valid stateids in nfs_layout_find_inode_by_stateid()
 - alloc_nfs_open_context() must use the file cred when available
 - Fix locking when dereferencing the delegation cred
 - Fix memory leaks in O_DIRECT when nfs_get_lock_context() fails
 - Various clean ups of the NFS O_DIRECT commit code
 - Clean up RDMA connect/disconnect
 - Replace zero-length arrays with C99-style flexible arrays
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Merge tag 'nfs-for-5.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Highlights include:

  Stable fixes:
   - Fix a page leak in nfs_destroy_unlinked_subrequests()

   - Fix use-after-free issues in nfs_pageio_add_request()

   - Fix new mount code constant_table array definitions

   - finish_automount() requires us to hold 2 refs to the mount record

  Features:
   - Improve the accuracy of telldir/seekdir by using 64-bit cookies
     when possible.

   - Allow one RDMA active connection and several zombie connections to
     prevent blocking if the remote server is unresponsive.

   - Limit the size of the NFS access cache by default

   - Reduce the number of references to credentials that are taken by
     NFS

   - pNFS files and flexfiles drivers now support per-layout segment
     COMMIT lists.

   - Enable partial-file layout segments in the pNFS/flexfiles driver.

   - Add support for CB_RECALL_ANY to the pNFS flexfiles layout type

   - pNFS/flexfiles Report NFS4ERR_DELAY and NFS4ERR_GRACE errors from
     the DS using the layouterror mechanism.

  Bugfixes and cleanups:
   - SUNRPC: Fix krb5p regressions

   - Don't specify NFS version in "UDP not supported" error

   - nfsroot: set tcp as the default transport protocol

   - pnfs: Return valid stateids in nfs_layout_find_inode_by_stateid()

   - alloc_nfs_open_context() must use the file cred when available

   - Fix locking when dereferencing the delegation cred

   - Fix memory leaks in O_DIRECT when nfs_get_lock_context() fails

   - Various clean ups of the NFS O_DIRECT commit code

   - Clean up RDMA connect/disconnect

   - Replace zero-length arrays with C99-style flexible arrays"

* tag 'nfs-for-5.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (86 commits)
  NFS: Clean up process of marking inode stale.
  SUNRPC: Don't start a timer on an already queued rpc task
  NFS/pnfs: Reference the layout cred in pnfs_prepare_layoutreturn()
  NFS/pnfs: Fix dereference of layout cred in pnfs_layoutcommit_inode()
  NFS: Beware when dereferencing the delegation cred
  NFS: Add a module parameter to set nfs_mountpoint_expiry_timeout
  NFS: finish_automount() requires us to hold 2 refs to the mount record
  NFS: Fix a few constant_table array definitions
  NFS: Try to join page groups before an O_DIRECT retransmission
  NFS: Refactor nfs_lock_and_join_requests()
  NFS: Reverse the submission order of requests in __nfs_pageio_add_request()
  NFS: Clean up nfs_lock_and_join_requests()
  NFS: Remove the redundant function nfs_pgio_has_mirroring()
  NFS: Fix memory leaks in nfs_pageio_stop_mirroring()
  NFS: Fix a request reference leak in nfs_direct_write_clear_reqs()
  NFS: Fix use-after-free issues in nfs_pageio_add_request()
  NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests()
  NFS: Fix a page leak in nfs_destroy_unlinked_subrequests()
  NFS: Remove unused FLUSH_SYNC support in nfs_initiate_pgio()
  pNFS/flexfiles: Specify the layout segment range in LAYOUTGET
  ...
2020-04-07 13:51:39 -07:00
Linus Torvalds
f40f31cadc f2fs-for-5.7-rc1
In this round, we've mainly focused on fixing bugs and addressing issues in
 recently introduced compression support.
 
 Enhancement:
 - add zstd support, and set LZ4 by default
 - add ioctl() to show # of compressed blocks
 - show mount time in debugfs
 - replace rwsem with spinlock
 - avoid lock contention in DIO reads
 
 Some major bug fixes wrt compression:
 - compressed block count
 - memory access and leak
 - remove obsolete fields
 - flag controls
 
 Other bug fixes and clean ups:
 - fix overflow when handling .flags in inode_info
 - fix SPO issue during resize FS flow
 - fix compression with fsverity enabled
 - potential deadlock when writing compressed pages
 - show missing mount options
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Merge tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've mainly focused on fixing bugs and addressing
  issues in recently introduced compression support.

  Enhancement:
   - add zstd support, and set LZ4 by default
   - add ioctl() to show # of compressed blocks
   - show mount time in debugfs
   - replace rwsem with spinlock
   - avoid lock contention in DIO reads

  Some major bug fixes wrt compression:
   - compressed block count
   - memory access and leak
   - remove obsolete fields
   - flag controls

  Other bug fixes and clean ups:
   - fix overflow when handling .flags in inode_info
   - fix SPO issue during resize FS flow
   - fix compression with fsverity enabled
   - potential deadlock when writing compressed pages
   - show missing mount options"

* tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (66 commits)
  f2fs: keep inline_data when compression conversion
  f2fs: fix to disable compression on directory
  f2fs: add missing CONFIG_F2FS_FS_COMPRESSION
  f2fs: switch discard_policy.timeout to bool type
  f2fs: fix to verify tpage before releasing in f2fs_free_dic()
  f2fs: show compression in statx
  f2fs: clean up dic->tpages assignment
  f2fs: compress: support zstd compress algorithm
  f2fs: compress: add .{init,destroy}_decompress_ctx callback
  f2fs: compress: fix to call missing destroy_compress_ctx()
  f2fs: change default compression algorithm
  f2fs: clean up {cic,dic}.ref handling
  f2fs: fix to use f2fs_readpage_limit() in f2fs_read_multi_pages()
  f2fs: xattr.h: Make stub helpers inline
  f2fs: fix to avoid double unlock
  f2fs: fix potential .flags overflow on 32bit architecture
  f2fs: fix NULL pointer dereference in f2fs_verity_work()
  f2fs: fix to clear PG_error if fsverity failed
  f2fs: don't call fscrypt_get_encryption_info() explicitly in f2fs_tmpfile()
  f2fs: don't trigger data flush in foreground operation
  ...
2020-04-07 13:48:26 -07:00
Linus Torvalds
763dede1b2 This pull request contains fixes for UBI and UBIFS:
- Fix for memory leaks around UBIFS orphan handling
 - Fix for memory leaks around UBI fastmap
 - Remove zero-length array from ubi-media.h
 - Fix for TNC lookup in UBIFS orphan code
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Merge tag 'for-linus-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs

Pull UBI and UBIFS updates from Richard Weinberger:

 - Fix for memory leaks around UBIFS orphan handling

 - Fix for memory leaks around UBI fastmap

 - Remove zero-length array from ubi-media.h

 - Fix for TNC lookup in UBIFS orphan code

* tag 'for-linus-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  ubi: ubi-media.h: Replace zero-length array with flexible-array member
  ubifs: Fix out-of-bounds memory access caused by abnormal value of node_len
  ubi: fastmap: Only produce the initial anchor PEB when fastmap is used
  ubi: fastmap: Free unused fastmap anchor peb during detach
  ubifs: ubifs_add_orphan: Fix a memory leak bug
  ubifs: ubifs_jnl_write_inode: Fix a memory leak bug
  ubifs: Fix ubifs_tnc_lookup() usage in do_kill_orphans()
2020-04-07 12:40:56 -07:00
Linus Torvalds
762a9f2f01 This pull request contains the following changes for UML:
- New mode for time travel, external via virtio
 - Fixes for ubd to make sure no requests can get lost
 - Fixes for vector networking
 - Allow CONFIG_STATIC_LINK only when possible
 - Minor cleanups and fixes
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Merge tag 'for-linus-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

Pull UML updates from Richard Weinberger:

 - New mode for time travel, external via virtio

 - Fixes for ubd to make sure no requests can get lost

 - Fixes for vector networking

 - Allow CONFIG_STATIC_LINK only when possible

 - Minor cleanups and fixes

* tag 'for-linus-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Remove some unnecessary NULL checks in vector_user.c
  um: vector: Avoid NULL ptr deference if transport is unset
  um: Make CONFIG_STATIC_LINK actually static
  um: Implement cpu_relax() as ndelay(1) for time-travel
  um: Implement ndelay/udelay in time-travel mode
  um: Implement time-travel=ext
  um: virtio: Implement VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS
  um: time-travel: Rewrite as an event scheduler
  um: Move timer-internal.h to non-shared
  hostfs: Use kasprintf() instead of fixed buffer formatting
  um: falloc.h needs to be directly included for older libc
  um: ubd: Retry buffer read on any kind of error
  um: ubd: Prevent buffer overrun on command completion
  um: Fix overlapping ELF segments when statically linked
  um: Delete never executed timer
  um: Don't overwrite ethtool driver version
  um: Fix len of file in create_pid_file
  um: Don't use console_drivers directly
  um: Cleanup CONFIG_IOSCHED_CFQ
2020-04-07 12:36:09 -07:00
Linus Torvalds
d5d247661e OpenRISC updates for 5.6
A few cleanups all over the place, things of note:
  - Enable the clone3 syscall
  - Remove CONFIG_CROSS_COMPILE from Krzysztof Kozlowski
  - Update to use mmgrab from Julia Lawall
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Merge tag 'for-linus' of git://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
 "A few cleanups all over the place, things of note:

   - Enable the clone3 syscall

   - Remove CONFIG_CROSS_COMPILE from Krzysztof Kozlowski

   - Update to use mmgrab from Julia Lawall"

* tag 'for-linus' of git://github.com/openrisc/linux:
  openrisc: Remove obsolete show_trace_task function
  openrisc: Cleanup copy_thread_tls docs and comments
  openrisc: Enable the clone3 syscall
  openrisc: Convert copy_thread to copy_thread_tls
  openrisc: use mmgrab
  openrisc: configs: Cleanup CONFIG_CROSS_COMPILE
2020-04-07 12:33:37 -07:00
Linus Torvalds
f9db97d751 Merge branch 'parisc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
 "Some cleanups in arch_rw locking functions, improved interrupt
  handling in arch spinlocks, coversions to request_irq() and syscall
  table generation cleanups"

* 'parisc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: remove nargs from __SYSCALL
  parisc: Refactor alternative code to accept multiple conditions
  parisc: Rework arch_rw locking functions
  parisc: Improve interrupt handling in arch_spin_lock_flags()
  parisc: Replace setup_irq() by request_irq()
2020-04-07 12:30:41 -07:00
Linus Torvalds
12782fbe0f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc update from David Miller:
 "A per-device DMA ops conversion for sparc32 by Chrstioph Hellwig"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc32: use per-device dma_ops
2020-04-07 12:26:07 -07:00
Linus Torvalds
498ff42d55 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
Pull IDE update from David Miller:
 "As usual, very quiet in this subsystem.

  Just a list_for_each_entry_safe() conversion"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
  drivers/ide: Fix build regression.
  drivers/ide: convert to list_for_each_entry_safe()
2020-04-07 12:16:15 -07:00
Linus Torvalds
479a72c0c6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Slave bond and team devices should not be assigned ipv6 link local
    addresses, from Jarod Wilson.

 2) Fix clock sink config on some at803x PHY devices, from Oleksij
    Rempel.

 3) Uninitialized stack space transmitted in slcan frames, fix from
    Richard Palethorpe.

 4) Guard HW VLAN ops properly in stmmac driver, from Jose Abreu.

 5) "=" --> "|=" fix in aquantia driver, from Colin Ian King.

 6) Fix TCP fallback in mptcp, from Florian Westphal. (accessing a plain
    tcp_sk as if it were an mptcp socket).

 7) Fix cavium driver in some configurations wrt. PTP, from Yue Haibing.

 8) Make ipv6 and ipv4 consistent in the lower bound allowed for
    neighbour entry retrans_time, from Hangbin Liu.

 9) Don't use private workqueue in pegasus usb driver, from Petko
    Manolov.

10) Fix integer overflow in mlxsw, from Colin Ian King.

11) Missing refcnt init in cls_tcindex, from Cong Wang.

12) One too many loop iterations when processing cmpri entries in ipv6
    rpl code, from Alexander Aring.

13) Disable SG and TSO by default in r8169, from Heiner Kallweit.

14) NULL deref in macsec, from Davide Caratti.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (42 commits)
  macsec: fix NULL dereference in macsec_upd_offload()
  skbuff.h: Improve the checksum related comments
  net: dsa: bcm_sf2: Ensure correct sub-node is parsed
  qed: remove redundant assignment to variable 'rc'
  wimax: remove some redundant assignments to variable result
  mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_VLAN_MANGLE
  mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_PRIORITY
  r8169: change back SG and TSO to be disabled by default
  net: dsa: bcm_sf2: Do not register slave MDIO bus with OF
  ipv6: rpl: fix loop iteration
  tun: Don't put_page() for all negative return values from XDP program
  net: dsa: mt7530: fix null pointer dereferencing in port5 setup
  mptcp: add some missing pr_fmt defines
  net: phy: micrel: kszphy_resume(): add delay after genphy_resume() before accessing PHY registers
  net_sched: fix a missing refcnt in tcindex_init()
  net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting
  mlxsw: spectrum_trap: fix unintention integer overflow on left shift
  pegasus: Remove pegasus' own workqueue
  neigh: support smaller retrans_time settting
  net: openvswitch: use hlist_for_each_entry_rcu instead of hlist_for_each_entry
  ...
2020-04-07 12:03:32 -07:00
Linus Torvalds
07d6f6dcc0 Merge branch 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
Pull pcmcia updates from Dominik Brodowski:
 "A few PCMCIA odd fixes: removing a few spaces and useless casts,
  replacing snprintf() with scnprintf(), and replacing zero-length
  arrays with a flexible-array member"

* 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux:
  pcmcia: remove some unused space characters
  pcmcia: soc_common.h: Replace zero-length array with flexible-array member
  pcmcia: cs_internal.h: Replace zero-length array with flexible-array member
  pcmcia: Use scnprintf() for avoiding potential buffer overflow
  pcmcia: omap: remove useless cast for driver.name
2020-04-07 11:01:37 -07:00
Trond Myklebust
93ce4af774 NFS: Clean up process of marking inode stale.
Instead of the various open coded calls to set the NFS_INO_STALE bit
and call nfs_zap_caches(), consolidate them into a single function
nfs_set_inode_stale().

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2020-04-06 13:56:33 -04:00
Linus Torvalds
7e63420847 Additional ACPI updates for 5.7-rc1
- Update the ACPICA code in the kernel to upstream revision 20200326
    including:
 
    * Fix for a typo in a comment field (Bob Moore).
    * acpiExec namespace init file fixes (Bob Moore).
    * Addition of NHLT to the known tables list (Cezary Rojewski).
    * Conversion of PlatformCommChannel ASL keyword to PCC (Erik
      Kaneda).
    * acpiexec cleanup (Erik Kaneda).
    * WSMT-related typo fix (Erik Kaneda).
    * sprintf() utility function fix (John Levon).
    * IVRS IVHD type 11h parsing implementation (Michał Żygowski).
    * IVRS IVHD type 10h reserved field name fix (Michał Żygowski).
 
  - Fix ACPI-related CPU hotplug deadlock on x86 (Qian Cai).
 
  - Fix Intel Tiger Lake ACPI device IDs in several places (Gayatri
    Kammela).
 
  - Add ACPI backlight blacklist entry for Acer Aspire 5783z (Hans
    de Goede).
 
  - Fix documentation of the "acpi_backlight" kernel command line
    switch (Randy Dunlap).
 
  - Clean up the acpi_get_psd_map() CPPC library routine (Liguang
    Zhang).
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Merge tag 'acpi-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "Additional ACPI updates.

  These update the ACPICA code in the kernel to the 20200326 upstream
  revision, fix an ACPI-related CPU hotplug deadlock on x86, update
  Intel Tiger Lake device IDs in some places, add a new ACPI backlight
  blacklist entry, update the "acpi_backlight" kernel command line
  switch documentation and clean up a CPPC library routine.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20200326
     including:
      * Fix for a typo in a comment field (Bob Moore)
      * acpiExec namespace init file fixes (Bob Moore)
      * Addition of NHLT to the known tables list (Cezary Rojewski)
      * Conversion of PlatformCommChannel ASL keyword to PCC (Erik
        Kaneda)
      * acpiexec cleanup (Erik Kaneda)
      * WSMT-related typo fix (Erik Kaneda)
      * sprintf() utility function fix (John Levon)
      * IVRS IVHD type 11h parsing implementation (Michał Żygowski)
      * IVRS IVHD type 10h reserved field name fix (Michał Żygowski)

   - Fix ACPI-related CPU hotplug deadlock on x86 (Qian Cai)

   - Fix Intel Tiger Lake ACPI device IDs in several places (Gayatri
     Kammela)

   - Add ACPI backlight blacklist entry for Acer Aspire 5783z (Hans de
     Goede)

   - Fix documentation of the "acpi_backlight" kernel command line
     switch (Randy Dunlap)

   - Clean up the acpi_get_psd_map() CPPC library routine (Liguang
     Zhang)"

* tag 'acpi-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  x86: ACPI: fix CPU hotplug deadlock
  thermal: int340x_thermal: fix: Update Tiger Lake ACPI device IDs
  platform/x86: intel-hid: fix: Update Tiger Lake ACPI device ID
  ACPI: Update Tiger Lake ACPI device IDs
  ACPI: video: Use native backlight on Acer Aspire 5783z
  ACPI: video: Docs update for "acpi_backlight" kernel parameter options
  ACPICA: Update version 20200326
  ACPICA: Fixes for acpiExec namespace init file
  ACPICA: Add NHLT table signature
  ACPICA: WSMT: Fix typo, no functional change
  ACPICA: utilities: fix sprintf()
  ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support
  ACPICA: Change PlatformCommChannel ASL keyword to PCC
  ACPICA: Fix IVRS IVHD type 10h reserved field name
  ACPICA: Implement IVRS IVHD type 11h parsing
  ACPICA: Fix a typo in a comment field
  ACPI: CPPC: clean up acpi_get_psd_map()
2020-04-06 10:35:06 -07:00
Davide Caratti
aa81700cf2 macsec: fix NULL dereference in macsec_upd_offload()
macsec_upd_offload() gets the value of MACSEC_OFFLOAD_ATTR_TYPE
without checking its presence in the request message, and this causes
a NULL dereference. Fix it rejecting any configuration that does not
include this attribute.

Reported-and-tested-by: syzbot+7022ab7c383875c17eff@syzkaller.appspotmail.com
Fixes: dcb780fb27 ("net: macsec: add nla support for changing the offloading selection")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:26:08 -07:00
Dexuan Cui
db1f00fb8f skbuff.h: Improve the checksum related comments
Fixed the punctuation and some typos.
Improved some sentences with minor changes.

No change of semantics or code.

Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:25:15 -07:00
Florian Fainelli
afa3b59295 net: dsa: bcm_sf2: Ensure correct sub-node is parsed
When the bcm_sf2 was converted into a proper platform device driver and
used the new dsa_register_switch() interface, we would still be parsing
the legacy DSA node that contained all the port information since the
platform firmware has intentionally maintained backward and forward
compatibility to client programs. Ensure that we do parse the correct
node, which is "ports" per the revised DSA binding.

Fixes: d9338023fb ("net: dsa: bcm_sf2: Make it a real platform device driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:22:58 -07:00
Colin Ian King
7df0a6a3e5 qed: remove redundant assignment to variable 'rc'
The variable 'rc' is being assigned a value that is never read
and it is being updated later with a new value. The assignment
is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:22:09 -07:00
Colin Ian King
2dd6a24fff wimax: remove some redundant assignments to variable result
In function i2400m_bm_buf_alloc there is no need to use a variable
'result' to return -ENOMEM, just return the literal value. In the
function i2400m_setup the variable 'result' is initialized with a
value that is never read, it is a redundant assignment that can
be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:20:03 -07:00
Linus Torvalds
ef05db16bb Additional power management updates for 5.7-rc1
- Fix corner-case suspend-to-idle wakeup issue on systems where
    the ACPI SCI is shared with another wakeup source (Hans de Goede).
 
  - Add document describing system-wide suspend and resume code flows
    to the admin guide (Rafael Wysocki).
 
  - Add kernel command line option to set pm_debug_messages (Chen Yu).
 
  - Choose schedutil as the preferred scaling governor by default on
    ARM big.LITTLE systems and on x86 systems using the intel_pstate
    driver in the passive mode (Linus Walleij, Rafael Wysocki).
 
  - Drop racy and redundant checks from the PM core's device_prepare()
    routine (Rafael Wysocki).
 
  - Make resume from hibernation take the hibernation_restore() return
    value into account (Dexuan Cui).
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Merge tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "Additional power management updates.

  These fix a corner-case suspend-to-idle wakeup issue on systems where
  the ACPI SCI is shared with another wakeup source, add a kernel
  command line option to set pm_debug_messages via the kernel command
  line, add a document desctibing system-wide suspend and resume code
  flows, modify cpufreq Kconfig to choose schedutil as the preferred
  governor by default in a couple of cases and do some assorted
  cleanups.

  Specifics:

   - Fix corner-case suspend-to-idle wakeup issue on systems where the
     ACPI SCI is shared with another wakeup source (Hans de Goede).

   - Add document describing system-wide suspend and resume code flows
     to the admin guide (Rafael Wysocki).

   - Add kernel command line option to set pm_debug_messages (Chen Yu).

   - Choose schedutil as the preferred scaling governor by default on
     ARM big.LITTLE systems and on x86 systems using the intel_pstate
     driver in the passive mode (Linus Walleij, Rafael Wysocki).

   - Drop racy and redundant checks from the PM core's device_prepare()
     routine (Rafael Wysocki).

   - Make resume from hibernation take the hibernation_restore() return
     value into account (Dexuan Cui)"

* tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  platform/x86: intel_int0002_vgpio: Use acpi_register_wakeup_handler()
  ACPI: PM: Add acpi_[un]register_wakeup_handler()
  Documentation: PM: sleep: Document system-wide suspend code flows
  cpufreq: Select schedutil when using big.LITTLE
  PM: sleep: Add pm_debug_messages kernel command line option
  PM: sleep: core: Drop racy and redundant checks from device_prepare()
  PM: hibernate: Propagate the return value of hibernation_restore()
  cpufreq: intel_pstate: Select schedutil as the default governor
2020-04-06 10:14:39 -07:00
David S. Miller
19a46799ad Merge branch 'mlxsw-fixes'
Ido Schimmel says:

====================
mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_{VLAN_MANGLE, PRIORITY}

Petr says:

The handlers for FLOW_ACTION_VLAN_MANGLE and FLOW_ACTION_PRIORITY end by
returning whatever the lower-level function that they call returns. If
there are more actions lined up after one of these actions, those are
never offloaded. Each of the two patches fixes one of those actions.

v2:
* Patch #1: Use valid SHA1 ID in Fixes line (Dave)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:14:00 -07:00
Petr Machata
ccfc569347 mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_VLAN_MANGLE
The handler for FLOW_ACTION_VLAN_MANGLE ends by returning whatever the
lower-level function that it calls returns. If there are more actions lined
up after this action, those are never offloaded. Fix by only bailing out
when the called function returns an error.

Fixes: a150201a70 ("mlxsw: spectrum: Add support for vlan modify TC action")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:14:00 -07:00
Petr Machata
0be0ae1441 mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_PRIORITY
The handler for FLOW_ACTION_PRIORITY ends by returning whatever the
lower-level function that it calls returns. If there are more actions lined
up after this action, those are never offloaded. Fix by only bailing out
when the called function returns an error.

Fixes: 463957e3fb ("mlxsw: spectrum_flower: Offload FLOW_ACTION_PRIORITY")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:14:00 -07:00
Heiner Kallweit
95099c569a r8169: change back SG and TSO to be disabled by default
There has been a number of reports that using SG/TSO on different chip
versions results in tx timeouts. However for a lot of people SG/TSO
works fine. Therefore disable both features by default, but allow users
to enable them. Use at own risk!

Fixes: 93681cd7d9 ("r8169: enable HW csum and TSO")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:09:58 -07:00
Florian Fainelli
536fab5bf5 net: dsa: bcm_sf2: Do not register slave MDIO bus with OF
We were registering our slave MDIO bus with OF and doing so with
assigning the newly created slave_mii_bus of_node to the master MDIO bus
controller node. This is a bad thing to do for a number of reasons:

- we are completely lying about the slave MII bus is arranged and yet we
  still want to control which MDIO devices it probes. It was attempted
  before to play tricks with the bus_mask to perform that:
  https://www.spinics.net/lists/netdev/msg429420.html but the approach
  was rightfully rejected

- the device_node reference counting is messed up and we are effectively
  doing a double probe on the devices we already probed using the
  master, this messes up all resources reference counts (such as clocks)

The proper fix for this as indicated by David in his reply to the
thread above is to use a platform data style registration so as to
control exactly which devices we probe:
https://www.spinics.net/lists/netdev/msg430083.html

By using mdiobus_register(), our slave_mii_bus->phy_mask value is used
as intended, and all the PHY addresses that must be redirected towards
our slave MDIO bus is happening while other addresses get redirected
towards the master MDIO bus.

Fixes: 461cd1b03e ("net: dsa: bcm_sf2: Register our slave MDIO bus")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:07:37 -07:00
Alexander Aring
a7f9a6f4cc ipv6: rpl: fix loop iteration
This patch fix the loop iteration by not walking over the last
iteration. The cmpri compressing value exempt the last segment. As the
code shows the last iteration will be overwritten by cmpre value
handling which is for the last segment.

I think this doesn't end in any bufferoverflows because we work on worst
case temporary buffer sizes but it ends in not best compression settings
in some cases.

Fixes: 8610c7c6e3 ("net: ipv6: add support for rpl sr exthdr")
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:05:42 -07:00
Will Deacon
bee348907d tun: Don't put_page() for all negative return values from XDP program
When an XDP program is installed, tun_build_skb() grabs a reference to
the current page fragment page if the program returns XDP_REDIRECT or
XDP_TX. However, since tun_xdp_act() passes through negative return
values from the XDP program, it is possible to trigger the error path by
mistake and accidentally drop a reference to the fragments page without
taking one, leading to a spurious free. This is believed to be the cause
of some KASAN use-after-free reports from syzbot [1], although without a
reproducer it is not possible to confirm whether this patch fixes the
problem.

Ensure that we only drop a reference to the fragments page if the XDP
transmit or redirect operations actually fail.

[1] https://syzkaller.appspot.com/bug?id=e76a6af1be4acd727ff6bbca669833f98cbf5d95

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
CC: Eric Dumazet <edumazet@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Fixes: 8ae1aff0b3 ("tuntap: split out XDP logic")
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:00:43 -07:00
Linus Torvalds
f183d269cc csky updates for 5.7-rc1
- Add kproobes/uprobes support
  - Add lockdep, rseq, gcov support
  - Fixup init_fpu
  - Fixup ftrace_modify deadlock
  - Fixup speculative execution on IO area
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Merge tag 'csky-for-linus-5.7-rc1' of git://github.com/c-sky/csky-linux

Pull csky updates from Guo Ren:

 - Add kproobes/uprobes support

 - Add lockdep, rseq, gcov support

 - Fixup init_fpu

 - Fixup ftrace_modify deadlock

 - Fixup speculative execution on IO area

* tag 'csky-for-linus-5.7-rc1' of git://github.com/c-sky/csky-linux:
  csky: Fixup cpu speculative execution to IO area
  csky: Add uprobes support
  csky: Add kprobes supported
  csky: Enable LOCKDEP_SUPPORT
  csky: Enable the gcov function
  csky: Fixup get wrong psr value from phyical reg
  csky/ftrace: Fixup ftrace_modify_code deadlock without CPU_HAS_ICACHE_INS
  csky: Implement ftrace with regs
  csky: Add support for restartable sequence
  csky: Implement ptrace regs and stack API
  csky: Fixup init_fpu compile warning with __init
2020-04-06 09:55:50 -07:00
Linus Torvalds
b6ff10700d \n
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Merge tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull fsnotify updates from Jan Kara:
 "This implements the fanotify FAN_DIR_MODIFY event.

  This event reports the name in a directory under which a change
  happened and together with the directory filehandle and fstatat()
  allows reliable and efficient implementation of directory
  synchronization"

* tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fanotify: Fix the checks in fanotify_fsid_equal
  fanotify: report name info for FAN_DIR_MODIFY event
  fanotify: record name info for FAN_DIR_MODIFY event
  fanotify: Drop fanotify_event_has_fid()
  fanotify: prepare to report both parent and child fid's
  fanotify: send FAN_DIR_MODIFY event flavor with dir inode and name
  fanotify: divorce fanotify_path_event and fanotify_fid_event
  fanotify: Store fanotify handles differently
  fanotify: Simplify create_fd()
  fanotify: fix merging marks masks with FAN_ONDIR
  fanotify: merge duplicate events on parent and child
  fsnotify: replace inode pointer with an object id
  fsnotify: simplify arguments passing to fsnotify_parent()
  fsnotify: use helpers to access data by data_type
  fsnotify: funnel all dirent events through fsnotify_name()
  fsnotify: factor helpers fsnotify_dentry() and fsnotify_file()
  fsnotify: tidy up FS_ and FAN_ constants
2020-04-06 08:58:42 -07:00
Linus Torvalds
74e934ba0d \n
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Merge tag 'for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull ext2/udf updates from Jan Kara:
 "Cleanups and fixes for ext2 and one cleanup for udf"

* tag 'for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  ext2: fix empty body warnings when -Wextra is used
  ext2: fix debug reference to ext2_xattr_cache
  udf: udf_sb.h: Replace zero-length array with flexible-array member
  ext2: xattr.h: Replace zero-length array with flexible-array member
  ext2: Silence lockdep warning about reclaim under xattr_sem
2020-04-06 08:55:04 -07:00
Linus Torvalds
e14679b62d 9p pull request for inclusion in 5.7
- Fix read with O_NONBLOCK to allow incomplete read and return immediately
 - Rest is just cleanup (indent, unused field in struct, extra semicolon)
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Merge tag '9p-for-5.7' of git://github.com/martinetd/linux

Pull 9p updates from Dominique Martinet:
 "Not much new, but a few patches for this cycle:

   - Fix read with O_NONBLOCK to allow incomplete read and return
     immediately

   - Rest is just cleanup (indent, unused field in struct, extra
     semicolon)"

* tag '9p-for-5.7' of git://github.com/martinetd/linux:
  net/9p: remove unused p9_req_t aux field
  9p: read only once on O_NONBLOCK
  9pnet: allow making incomplete read requests
  9p: Remove unneeded semicolon
  9p: Fix Kconfig indentation
2020-04-06 08:46:59 -07:00
Linus Torvalds
77a73eecd4 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pathwalk fix from Al Viro:
 "Dumb braino in legitimize_path()..."

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix a braino in legitimize_path()
2020-04-06 08:38:52 -07:00
Al Viro
5bd73286d5 fix a braino in legitimize_path()
brown paperbag time... wrong order of arguments ended up confusing
the values to check dentry and mount_lock seqcounts against.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Fixes: 2aa3847085 ("non-RCU analogue of the previous commit")
Tested-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-04-06 10:38:59 -04:00
Rafael J. Wysocki
33ae7f715e Merge branches 'acpi-cppc', 'acpi-video' and 'acpi-drivers'
* acpi-cppc:
  ACPI: CPPC: clean up acpi_get_psd_map()

* acpi-video:
  ACPI: video: Use native backlight on Acer Aspire 5783z
  ACPI: video: Docs update for "acpi_backlight" kernel parameter options

* acpi-drivers:
  thermal: int340x_thermal: fix: Update Tiger Lake ACPI device IDs
  platform/x86: intel-hid: fix: Update Tiger Lake ACPI device ID
  ACPI: Update Tiger Lake ACPI device IDs
2020-04-06 16:23:44 +02:00
Rafael J. Wysocki
fd0360583a Merge branch 'acpica'
* acpica:
  ACPICA: Update version 20200326
  ACPICA: Fixes for acpiExec namespace init file
  ACPICA: Add NHLT table signature
  ACPICA: WSMT: Fix typo, no functional change
  ACPICA: utilities: fix sprintf()
  ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support
  ACPICA: Change PlatformCommChannel ASL keyword to PCC
  ACPICA: Fix IVRS IVHD type 10h reserved field name
  ACPICA: Implement IVRS IVHD type 11h parsing
  ACPICA: Fix a typo in a comment field
2020-04-06 16:23:31 +02:00
Rafael J. Wysocki
54032b863b Merge branches 'pm-sleep' and 'pm-cpufreq'
* pm-sleep:
  Documentation: PM: sleep: Document system-wide suspend code flows
  PM: sleep: Add pm_debug_messages kernel command line option
  PM: sleep: core: Drop racy and redundant checks from device_prepare()
  PM: hibernate: Propagate the return value of hibernation_restore()

* pm-cpufreq:
  cpufreq: Select schedutil when using big.LITTLE
  cpufreq: intel_pstate: Select schedutil as the default governor
2020-04-06 15:42:05 +02:00
Firoz Khan
106c90922e parisc: remove nargs from __SYSCALL
The __SYSCALL macro's arguments are system call number,
system call entry name and number of arguments for the
system call.

Argument- nargs in __SYSCALL(nr, entry, nargs) is neither
calculated nor used anywhere. So it would be better to
keep the implementaion as  __SYSCALL(nr, entry). This will
unifies the implementation with some other architetures
too.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2020-04-05 22:57:40 +02:00
Helge Deller
2a3778e70f parisc: Refactor alternative code to accept multiple conditions
Allow the alternative loop to accept multiple conditions when replacing
existing code, e.g.
	ALTERNATIVE(ALT_COND_NO_SMP | ALT_COND_RUN_ON_QEMU, INSN_NOP)

Signed-off-by: Helge Deller <deller@gmx.de>
2020-04-05 22:50:40 +02:00
Linus Torvalds
a10c9c710f power supply and reset changes for the v5.7 series
Core:
  * Nothing
 
 Drivers:
  * at91-reset: cleanups, proper handling for sam9x60
  * sc27xx, charger-manager: allow building as module
  * sc27xx: add support to read current charge capacity
  * axp288: more quirks for weird hardware
  * misc. fixes
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Merge tag 'for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset changes from Sebastian Reichel:
 "Core:
   - Nothing

  Drivers:
   - at91-reset: cleanups, proper handling for sam9x60
   - sc27xx, charger-manager: allow building as module
   - sc27xx: add support to read current charge capacity
   - axp288: more quirks for weird hardware
   - misc fixes"

* tag 'for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (26 commits)
  power: reset: sc27xx: Allow the SC27XX poweroff driver building into a module
  power: reset: sc27xx: Change to use cpu_down()
  power: reset: sc27xx: Power off the external subsystems' connection
  power: twl4030: Use scnprintf() for avoiding potential buffer overflow
  power: supply: bq27xxx_battery: Silence deferred-probe error
  power: reset: at91-reset: handle nrst async for sam9x60
  power: reset: at91-reset: get rid of at91_reset_data
  power: reset: at91-reset: keep only one reset function
  power: reset: at91-reset: make at91sam9g45_restart() generic
  power: reset: at91-reset: introduce ramc_lpr to struct at91_reset
  power: reset: at91-reset: use r4 as tmp argument
  power: reset: at91-reset: introduce args member in at91_reset_data
  power: reset: at91-reset: introduce struct at91_reset_data
  power: reset: at91-reset: devm_kzalloc() for at91_reset data structure
  power: reset: at91-reset: pass rstc base address to at91_reset_status()
  power: reset: at91-reset: convert reset in pointer to struct at91_reset
  power: reset: at91-reset: add notifier block to struct at91_reset
  power: reset: at91-reset: add sclk to struct at91_reset
  power: reset: at91-reset: add ramc_base[] to struct at91_reset
  power: reset: at91-reset: introduce struct at91_reset
  ...
2020-04-05 13:47:57 -07:00
Helge Deller
fbdc8f0f48 parisc: Rework arch_rw locking functions
Clean up the arch read/write locking functions based on the arc
implemenation. This improves readability of those functions.

Signed-off-by: Helge Deller <deller@gmx.de>
2020-04-05 22:29:55 +02:00
Helge Deller
2772f0efd5 parisc: Improve interrupt handling in arch_spin_lock_flags()
Rewrite arch_spin_lock() and arch_spin_lock_flags() to not re-enable and
disable the PSW_SM_I interrupt flag too often.

Signed-off-by: Helge Deller <deller@gmx.de>
2020-04-05 22:16:38 +02:00
afzal mohammed
997ba65736 parisc: Replace setup_irq() by request_irq()
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.

Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.

Hence replace setup_irq() by request_irq().

[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos

Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2020-04-05 22:05:23 +02:00
Linus Torvalds
c48b07226b perf updates all over the place:
core:
 
    - Support for cgroup tracking in samples to allow cgroup based
      analysis
 
  tools:
 
    - Support for cgroup analysis
 
    - Commandline option and hotkey for perf top to change the sort order
 
    - A set of fixes all over the place
 
    - Various build system related improvements
 
    - Updates of the X86 pmu event JSON data
 
    - Documentation updates
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Merge tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull more perf updates from Thomas Gleixner:
 "Perf updates all over the place:

  core:

   - Support for cgroup tracking in samples to allow cgroup based
     analysis

  tools:

   - Support for cgroup analysis

   - Commandline option and hotkey for perf top to change the sort order

   - A set of fixes all over the place

   - Various build system related improvements

   - Updates of the X86 pmu event JSON data

   - Documentation updates"

* tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
  perf python: Fix clang detection to strip out options passed in $CC
  perf tools: Support Python 3.8+ in Makefile
  perf script: Fix invalid read of directory entry after closedir()
  perf script report: Fix SEGFAULT when using DWARF mode
  perf script: add -S/--symbols documentation
  perf pmu-events x86: Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric
  perf events parser: Add missing Intel CPU events to parser
  perf script: Allow --symbol to accept hexadecimal addresses
  perf report/top TUI: Fix title line formatting
  perf top: Support hotkey to change sort order
  perf top: Support --group-sort-idx to change the sort order
  perf symbols: Fix arm64 gap between kernel start and module end
  perf build-test: Honour JOBS to override detection of number of cores
  perf script: Add --show-cgroup-events option
  perf top: Add --all-cgroups option
  perf record: Add --all-cgroups option
  perf record: Support synthesizing cgroup events
  perf report: Add 'cgroup' sort key
  perf cgroup: Maintain cgroup hierarchy
  perf tools: Basic support for CGROUP event
  ...
2020-04-05 12:26:24 -07:00
Linus Torvalds
d5ca32738f Two timer subsystem fixes:
- Prevent a use after free in the new lockdep state tracking for hrtimers
 
     - Add missing parenthesis in the VF pit timer driver
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Merge tag 'timers-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "Two timer subsystem fixes:

   - Prevent a use after free in the new lockdep state tracking for
     hrtimers

   - Add missing parenthesis in the VF pit timer driver"

* tag 'timers-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/timer-vf-pit: Add missing parenthesis
  hrtimer: Don't dereference the hrtimer pointer after the callback
2020-04-05 12:06:51 -07:00
Linus Torvalds
e5adbd6ec4 Two reverts addressing regressions of the Xilinx interrupt controller
driver which affected the PPC users.
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Merge tag 'irq-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "Two reverts addressing regressions of the Xilinx interrupt controller
  driver which affected the PPC users"

* tag 'irq-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "irqchip/xilinx: Enable generic irq multi handler"
  Revert "irqchip/xilinx: Do not call irq_set_default_host()"
2020-04-05 11:57:12 -07:00
Linus Torvalds
70fbdfef4b sysfs: remove redundant __compat_only_sysfs_link_entry_to_kobj fn
Commit 9255782f70 ("sysfs: Wrap __compat_only_sysfs_link_entry_to_kobj
function to change the symlink name") made this function a wrapper
around a new non-underscored function, which is a bit odd.  The normal
naming convention is the other way around: the underscored function is
the wrappee, and the non-underscored function is the wrapper.

There's only one single user (well, two call-sites in that user) of the
more limited double underscore version of this function, so just remove
the oddly named wrapper entirely and just add the extra NULL argument to
the user.

I considered just doing that in the merge, but that tends to make
history really hard to read.

Link: https://lore.kernel.org/lkml/CAHk-=wgkkmNV5tMzQDmPAQuNJBuMcry--Jb+h8H1o4RA3kF7QQ@mail.gmail.com/
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-05 11:34:35 -07:00
Linus Torvalds
d38c07afc3 powerpc updates for 5.7
- A large series from Nick for 64-bit to further rework our exception vectors,
    and rewrite portions of the syscall entry/exit and interrupt return in C. The
    result is much easier to follow code that is also faster in general.
 
  - Cleanup of our ptrace code to split various parts out that had become badly
    intertwined with #ifdefs over the years.
 
  - Changes to our NUMA setup under the PowerVM hypervisor which should
    hopefully avoid non-sensical topologies which can lead to warnings from the
    workqueue code and other problems.
 
  - MAINTAINERS updates to remove some of our old orphan entries and update the
    status of others.
 
  - Quite a few other small changes and fixes all over the map.
 
 Thanks to:
   Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew Donnellan, Aneesh
   Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen Zhou, Christophe JAILLET,
   Christophe Leroy, Christoph Hellwig, Clement Courbet, Daniel Axtens, David
   Gibson, Douglas Miller, Fabiano Rosas, Fangrui Song, Ganesh Goudar, Gautham R.
   Shenoy, Greg Kroah-Hartman, Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie
   Halip, Jan Kara, Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger,
   Laurentiu Tudor, Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh
   Salgaonkar, Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira,
   Michael Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan
   Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers,
   Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat, Rasmus Villemoes, Ravi
   Bangoria, Roman Bolshakov, Sam Bobroff, Sandipan Das, Santosh S, Sedat Dilek,
   Segher Boessenkool, Shilpasri G Bhat, Sourabh Jain, Srikar Dronamraju, Stephen
   Rothwell, Tyrel Datwyler, Vaibhav Jain, YueHaibing.
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Merge tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Slightly late as I had to rebase mid-week to insert a bug fix:

   - A large series from Nick for 64-bit to further rework our exception
     vectors, and rewrite portions of the syscall entry/exit and
     interrupt return in C. The result is much easier to follow code
     that is also faster in general.

   - Cleanup of our ptrace code to split various parts out that had
     become badly intertwined with #ifdefs over the years.

   - Changes to our NUMA setup under the PowerVM hypervisor which should
     hopefully avoid non-sensical topologies which can lead to warnings
     from the workqueue code and other problems.

   - MAINTAINERS updates to remove some of our old orphan entries and
     update the status of others.

   - Quite a few other small changes and fixes all over the map.

  Thanks to: Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew
  Donnellan, Aneesh Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen
  Zhou, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Clement
  Courbet, Daniel Axtens, David Gibson, Douglas Miller, Fabiano Rosas,
  Fangrui Song, Ganesh Goudar, Gautham R. Shenoy, Greg Kroah-Hartman,
  Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie Halip, Jan Kara,
  Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger, Laurentiu Tudor,
  Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh Salgaonkar,
  Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira, Michael
  Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan
  Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick
  Desaulniers, Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat,
  Rasmus Villemoes, Ravi Bangoria, Roman Bolshakov, Sam Bobroff,
  Sandipan Das, Santosh S, Sedat Dilek, Segher Boessenkool, Shilpasri G
  Bhat, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Tyrel
  Datwyler, Vaibhav Jain, YueHaibing"

* tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits)
  powerpc: Make setjmp/longjmp signature standard
  powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type
  powerpc: Suppress .eh_frame generation
  powerpc: Drop -fno-dwarf2-cfi-asm
  powerpc/32: drop unused ISA_DMA_THRESHOLD
  powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces
  selftests/powerpc: Fix try-run when source tree is not writable
  powerpc/vmlinux.lds: Explicitly retain .gnu.hash
  powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c
  powerpc/ptrace: create ppc_gethwdinfo()
  powerpc/ptrace: create ptrace_get_debugreg()
  powerpc/ptrace: split out ADV_DEBUG_REGS related functions.
  powerpc/ptrace: move register viewing functions out of ptrace.c
  powerpc/ptrace: split out TRANSACTIONAL_MEM related functions.
  powerpc/ptrace: split out SPE related functions.
  powerpc/ptrace: split out ALTIVEC related functions.
  powerpc/ptrace: split out VSX related functions.
  powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET
  powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64
  powerpc/ptrace: remove unused header includes
  ...
2020-04-05 11:12:59 -07:00
Linus Torvalds
31c0aa87ec 1) Improve getrandom and /dev/random's support for those arm64
architecture variants that have RNG instructions.
 
 2) Use batched output form CRNG instead of CPU's RNG instructions for
 better performance.
 
 3) Miscellaneous bug fixes.
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull /dev/random updates from Ted Ts'o:

 - Improve getrandom and /dev/random's support for those arm64
   architecture variants that have RNG instructions.

 - Use batched output from CRNG instead of CPU's RNG instructions for
   better performance.

 - Miscellaneous bug fixes.

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: avoid warnings for !CONFIG_NUMA builds
  random: fix data races at timer_rand_state
  random: always use batched entropy for get_random_u{32,64}
  random: Make RANDOM_TRUST_CPU depend on ARCH_RANDOM
  arm64: add credited/trusted RNG support
  random: add arch_get_random_*long_early()
  random: split primary/secondary crng init paths
2020-04-05 10:59:18 -07:00
Linus Torvalds
9c94b39560 1) Replace ext4's bmap and iopoll implementations to use iomap.
2)  Clean up extent tree handling.
 
 3)  Other cleanups and miscellaneous bug fixes
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:

 - Replace ext4's bmap and iopoll implementations to use iomap.

 - Clean up extent tree handling.

 - Other cleanups and miscellaneous bug fixes

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (31 commits)
  ext4: save all error info in save_error_info() and drop ext4_set_errno()
  ext4: fix incorrect group count in ext4_fill_super error message
  ext4: fix incorrect inodes per group in error message
  ext4: don't set dioread_nolock by default for blocksize < pagesize
  ext4: disable dioread_nolock whenever delayed allocation is disabled
  ext4: do not commit super on read-only bdev
  ext4: avoid ENOSPC when avoiding to reuse recently deleted inodes
  ext4: unregister sysfs path before destroying jbd2 journal
  ext4: check for non-zero journal inum in ext4_calculate_overhead
  ext4: remove map_from_cluster from ext4_ext_map_blocks
  ext4: clean up ext4_ext_insert_extent() call in ext4_ext_map_blocks()
  ext4: mark block bitmap corrupted when found instead of BUGON
  ext4: use flexible-array member for xattr structs
  ext4: use flexible-array member in struct fname
  Documentation: correct the description of FIEMAP_EXTENT_LAST
  ext4: move ext4_fiemap to use iomap framework
  ext4: make ext4_ind_map_blocks work with fiemap
  ext4: move ext4 bmap to use iomap infrastructure
  ext4: optimize ext4_ext_precache for 0 depth
  ext4: add IOMAP_F_MERGED for non-extent based mapping
  ...
2020-04-05 10:54:03 -07:00
Linus Torvalds
3476195651 There's not much to see in the core framework this time around. Instead the
majority of the diff is the normal collection of driver additions for new SoCs
 and non-critical clk data fixes and updates. The framework must be middle aged.
 
 The two biggest directories in the diffstat show that the Qualcomm and Unisoc
 support added a handful of big drivers for new SoCs but that's not really the
 whole story because those new drivers tend to add large numbers of lines of clk
 data. There's a handful of AT91 clk drivers added this time around too and a
 bunch of improvements to drivers like the i.MX driver. All around lots of
 updates and fixes in various clk drivers which is good to see.
 
 The core framework has only one real major change which has been baking in next
 for the past couple months. It fixes the framework so that it stops caching a
 clk's phase when the phase clk_op returns an error. Before this change we would
 consider some negative errno as a phase and that just doesn't make sense.
 
 Core:
  - Don't show clk phase when it is invalid
 
 New Drivers:
  - Add support for Unisoc SC9863A clks
  - Qualcomm SM8250 RPMh and MSM8976 RPM clks
  - Qualcomm SM8250 Global Clock Controller (GCC) support
  - Qualcomm SC7180 Modem Clock Controller (MSS CC) support
  - EHRPWM's TimeBase clock(TBCLK) for TI AM654 SoCs
  - Support PMC clks on at91sam9n12, at91rm9200, sama5d3, and at91sam9g45 SoCs
 
 Updates:
  - GPU GX GDSC support on Qualcomm sc7180
  - Fixes and improvements for the Marvell MMP2/MMP3 SoC clk drivers
  - A series from Anson to convert i.MX8 clock bindings to json-schema
  - Update i.MX pll14xx driver to include new frequency entries for pll1443x table,
    and return error for invalid PLL type
  - Add missing of_node_put() call for a number of i.MX clock drivers
  - Drop flag CLK_IS_CRITICAL from 'A53_CORE' mux clock, as we already
    have the flag on its child cpu clock
  - Fix a53 cpu clock for i.MX8 drivers to get it source from ARM PLL
    via CORE_SEL slice, and source from A53 CCM clk root when we need to
    change ARM PLL frequency. Thus, we can support core running above
    1GHz safely
  - Update i.MX pfdv2 driver to check zero rate and use determine_rate for
    getting the best rate
  - Add CLKO2 for imx8mm, SNVS clock for imx8mn, and PXP clock for imx7d
  - Remove PMC clks from Tegra clk driver
  - Improved clock/reset handling for the Renesas R-Car USB2 Clock Selector
  - Conversion to json-schema of the Renesas CPG/MSSR DT bindings
  - Add Crypto clocks on Renesas R-Car M3-W/W+, M3-N, E3, and D3
  - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car H3, M3-W/W+, and M3-N
  - Update Amlogic audio clock gate hierarchy for meson8 and gxbb
  - Update Amlogic g12a spicc clock sources
  - Support for Ingenic X1000 TCU clks
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "There's not much to see in the core framework this time around.
  Instead the majority of the diff is the normal collection of driver
  additions for new SoCs and non-critical clk data fixes and updates.
  The framework must be middle aged.

  The two biggest directories in the diffstat show that the Qualcomm and
  Unisoc support added a handful of big drivers for new SoCs but that's
  not really the whole story because those new drivers tend to add large
  numbers of lines of clk data. There's a handful of AT91 clk drivers
  added this time around too and a bunch of improvements to drivers like
  the i.MX driver. All around lots of updates and fixes in various clk
  drivers which is good to see.

  The core framework has only one real major change which has been
  baking in next for the past couple months. It fixes the framework so
  that it stops caching a clk's phase when the phase clk_op returns an
  error. Before this change we would consider some negative errno as a
  phase and that just doesn't make sense.

  Core:
   - Don't show clk phase when it is invalid

  New Drivers:
   - Add support for Unisoc SC9863A clks
   - Qualcomm SM8250 RPMh and MSM8976 RPM clks
   - Qualcomm SM8250 Global Clock Controller (GCC) support
   - Qualcomm SC7180 Modem Clock Controller (MSS CC) support
   - EHRPWM's TimeBase clock(TBCLK) for TI AM654 SoCs
   - Support PMC clks on at91sam9n12, at91rm9200, sama5d3, and
     at91sam9g45 SoCs

  Updates:
   - GPU GX GDSC support on Qualcomm sc7180
   - Fixes and improvements for the Marvell MMP2/MMP3 SoC clk drivers
   - A series from Anson to convert i.MX8 clock bindings to json-schema
   - Update i.MX pll14xx driver to include new frequency entries for
     pll1443x table, and return error for invalid PLL type
   - Add missing of_node_put() call for a number of i.MX clock drivers
   - Drop flag CLK_IS_CRITICAL from 'A53_CORE' mux clock, as we already
     have the flag on its child cpu clock
   - Fix a53 cpu clock for i.MX8 drivers to get it source from ARM PLL
     via CORE_SEL slice, and source from A53 CCM clk root when we need
     to change ARM PLL frequency. Thus, we can support core running
     above 1GHz safely
   - Update i.MX pfdv2 driver to check zero rate and use determine_rate
     for getting the best rate
   - Add CLKO2 for imx8mm, SNVS clock for imx8mn, and PXP clock for
     imx7d
   - Remove PMC clks from Tegra clk driver
   - Improved clock/reset handling for the Renesas R-Car USB2 Clock
     Selector
   - Conversion to json-schema of the Renesas CPG/MSSR DT bindings
   - Add Crypto clocks on Renesas R-Car M3-W/W+, M3-N, E3, and D3
   - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car H3, M3-W/W+, and
     M3-N
   - Update Amlogic audio clock gate hierarchy for meson8 and gxbb
   - Update Amlogic g12a spicc clock sources
   - Support for Ingenic X1000 TCU clks"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (146 commits)
  clk: sprd: fix to get a correct ibias of pll
  dt-bindings: imx8mm-clock: Fix the file path
  dt-bindings: imx8mq-clock: Fix the file path
  clk: qcom: rpmh: Drop unnecessary semicolons
  clk: qcom: rpmh: Simplify clk_rpmh_bcm_send_cmd()
  clk: tegra: Use NULL for pointer initialization
  clk: sprd: add clocks support for SC9863A
  clk: sprd: support to get regmap from parent node
  clk: sprd: Add macros for referencing parents without strings
  clk: sprd: Add dt-bindings include file for SC9863A
  dt-bindings: clk: sprd: add bindings for sc9863a clock controller
  dt-bindings: clk: sprd: rename the common file name sprd.txt to SoC specific
  clk: sprd: add gate for pll clocks
  MAINTAINERS: dt: update reference for arm-integrator.txt
  clk: mmp2: Fix bit masks for LCDC I/O and pixel clocks
  clk: mmp2: Add clock for fifth SD HCI on MMP3
  dt-bindings: marvell,mmp2: Add clock id for the fifth SD HCI on MMP3
  clk: mmp2: Add clocks for the thermal sensors
  dt-bindings: marvell,mmp2: Add clock ids for the thermal sensors
  clk: mmp2: add the GPU clocks
  ...
2020-04-05 10:43:32 -07:00
Linus Torvalds
aa1a8ce533 New tracing features:
- The ring buffer is no longer disabled when reading the trace file.
    The trace_pipe file was made to be used for live tracing and reading
    as it acted like the normal producer/consumer. As the trace file
    would not consume the data, the easy way of handling it was to just
    disable writes to the ring buffer. This came to a surprise to the
    BPF folks who complained about lost events due to reading.
    This is no longer an issue. If someone wants to keep the old disabling
    there's a new option "pause-on-trace" that can be set.
 
  - New set_ftrace_notrace_pid file. PIDs in this file will not be traced
    by the function tracer. Similar to set_ftrace_pid, which makes the
    function tracer only trace those tasks with PIDs in the file, the
    set_ftrace_notrace_pid does the reverse.
 
  - New set_event_notrace_pid file. PIDs in this file will cause events
    not to be traced if triggered by a task with a matching PID.
    Similar to the set_event_pid file but will not be traced.
    Note, sched_waking and sched_switch events may still be trace if
    one of the tasks referenced by those events contains a PID that
    is allowed to be traced.
 
 Tracing related features:
 
  - New bootconfig option, that is attached to the initrd file.
    If bootconfig is on the command line, then the initrd file
    is searched looking for a bootconfig appended at the end.
 
  - New GPU tracepoint infrastructure to help the gfx drivers to get
    off debugfs (acked by Greg Kroah-Hartman)
 
 Other minor updates and fixes.
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Merge tag 'trace-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "New tracing features:

   - The ring buffer is no longer disabled when reading the trace file.

     The trace_pipe file was made to be used for live tracing and
     reading as it acted like the normal producer/consumer. As the trace
     file would not consume the data, the easy way of handling it was to
     just disable writes to the ring buffer.

     This came to a surprise to the BPF folks who complained about lost
     events due to reading. This is no longer an issue. If someone wants
     to keep the old disabling there's a new option "pause-on-trace"
     that can be set.

   - New set_ftrace_notrace_pid file. PIDs in this file will not be
     traced by the function tracer.

     Similar to set_ftrace_pid, which makes the function tracer only
     trace those tasks with PIDs in the file, the set_ftrace_notrace_pid
     does the reverse.

   - New set_event_notrace_pid file. PIDs in this file will cause events
     not to be traced if triggered by a task with a matching PID.

     Similar to the set_event_pid file but will not be traced. Note,
     sched_waking and sched_switch events may still be traced if one of
     the tasks referenced by those events contains a PID that is allowed
     to be traced.

  Tracing related features:

   - New bootconfig option, that is attached to the initrd file.

     If bootconfig is on the command line, then the initrd file is
     searched looking for a bootconfig appended at the end.

   - New GPU tracepoint infrastructure to help the gfx drivers to get
     off debugfs (acked by Greg Kroah-Hartman)

  And other minor updates and fixes"

* tag 'trace-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (27 commits)
  tracing: Do not allocate buffer in trace_find_next_entry() in atomic
  tracing: Add documentation on set_ftrace_notrace_pid and set_event_notrace_pid
  selftests/ftrace: Add test to test new set_event_notrace_pid file
  selftests/ftrace: Add test to test new set_ftrace_notrace_pid file
  tracing: Create set_event_notrace_pid to not trace tasks
  ftrace: Create set_ftrace_notrace_pid to not trace tasks
  ftrace: Make function trace pid filtering a bit more exact
  ftrace/kprobe: Show the maxactive number on kprobe_events
  tracing: Have the document reflect that the trace file keeps tracing enabled
  ring-buffer/tracing: Have iterator acknowledge dropped events
  tracing: Do not disable tracing when reading the trace file
  ring-buffer: Do not disable recording when there is an iterator
  ring-buffer: Make resize disable per cpu buffer instead of total buffer
  ring-buffer: Optimize rb_iter_head_event()
  ring-buffer: Do not die if rb_iter_peek() fails more than thrice
  ring-buffer: Have rb_iter_head_event() handle concurrent writer
  ring-buffer: Add page_stamp to iterator for synchronization
  ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance()
  ring-buffer: Have ring_buffer_empty() not depend on tracing stopped
  tracing: Save off entry when peeking at next entry
  ...
2020-04-05 10:36:18 -07:00
afzal mohammed
760a537686 clocksource/drivers/timer-vf-pit: Add missing parenthesis
Recently all usage of setup_irq() was replaced by request_irq(). The
replacement in timer-vf-pit.c missed closing parentheses resulting in a build
error (vf610m4_defconfig). Fix it.

Fixes: cc2550b421 ("clocksource: Replace setup_irq() by request_irq()")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200323061130.GA6286@afzalpc
2020-04-05 09:24:58 +02:00