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  1. 29 Mar, 2019 1 commit
  3. 27 Mar, 2019 1 commit
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 1a9df9e2
      Linus Torvalds authored 
      Pull networking fixes from David Miller:
 "Fixes here and there, a couple new device IDs, as usual:

   1) Fix BQL race in dpaa2-eth driver, from Ioana Ciornei.

   2) Fix 64-bit division in iwlwifi, from Arnd Bergmann.

   3) Fix documentation for some eBPF helpers, from Quentin Monnet.

   4) Some UAPI bpf header sync with tools, also from Quentin Monnet.

   5) Set descriptor ownership bit at the right time for jumbo frames in
      stmmac driver, from Aaro Koskinen.

   6) Set IFF_UP properly in tun driver, from Eric Dumazet.

   7) Fix load/store doubleword instruction generation in powerpc eBPF
      JIT, from Naveen N. Rao.

   8) nla_nest_start() return value checks all over, from Kangjie Lu.

   9) Fix asoc_id handling in SCTP after the SCTP_*_ASSOC changes this
      merge window. From Marcelo Ricardo Leitner and Xin Long.

  10) Fix memory corruption with large MTUs in stmmac, from Aaro
      Koskinen.

  11) Do not use ipv4 header for ipv6 flows in TCP and DCCP, from Eric
      Dumazet.

  12) Fix topology subscription cancellation in tipc, from Erik Hugne.

  13) Memory leak in genetlink error path, from Yue Haibing.

  14) Valid control actions properly in packet scheduler, from Davide
      Caratti.

  15) Even if we get EEXIST, we still need to rehash if a shrink was
      delayed. From Herbert Xu.

  16) Fix interrupt mask handling in interrupt handler of r8169, from
      Heiner Kallweit.

  17) Fix leak in ehea driver, from Wen Yang"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (168 commits)
  dpaa2-eth: fix race condition with bql frame accounting
  chelsio: use BUG() instead of BUG_ON(1)
  net: devlink: skip info_get op call if it is not defined in dumpit
  net: phy: bcm54xx: Encode link speed and activity into LEDs
  tipc: change to check tipc_own_id to return in tipc_net_stop
  net: usb: aqc111: Extend HWID table by QNAP device
  net: sched: Kconfig: update reference link for PIE
  net: dsa: qca8k: extend slave-bus implementations
  net: dsa: qca8k: remove leftover phy accessors
  dt-bindings: net: dsa: qca8k: support internal mdio-bus
  dt-bindings: net: dsa: qca8k: fix example
  net: phy: don't clear BMCR in genphy_soft_reset
  bpf, libbpf: clarify bump in libbpf version info
  bpf, libbpf: fix version info and add it to shared object
  rxrpc: avoid clang -Wuninitialized warning
  tipc: tipc clang warning
  net: sched: fix cleanup NULL pointer exception in act_mirr
  r8169: fix cable re-plugging issue
  net: ethernet: ti: fix possible object reference leak
  net: ibm: fix possible object reference leak
  ...
      1a9df9e2
  5. 26 Mar, 2019 20 commits
  7. 25 Mar, 2019 6 commits
    • Linus Torvalds's avatar
      Revert "parport: daisy: use new parport device model" · a3ac7917
      Linus Torvalds authored 
      This reverts commit 1aec4211.

Steven Rostedt reports that it causes a hang at bootup and bisected it
to this commit.

The troigger is apparently a module alias for "parport_lowlevel" that
points to "parport_pc", which causes a hang with

    modprobe -q -- parport_lowlevel

blocking forever with a backtrace like this:

    wait_for_completion_killable+0x1c/0x28
    call_usermodehelper_exec+0xa7/0x108
    __request_module+0x351/0x3d8
    get_lowlevel_driver+0x28/0x41 [parport]
    __parport_register_driver+0x39/0x1f4 [parport]
    daisy_drv_init+0x31/0x4f [parport]
    parport_bus_init+0x5d/0x7b [parport]
    parport_default_proc_register+0x26/0x1000 [parport]
    do_one_initcall+0xc2/0x1e0
    do_init_module+0x50/0x1d4
    load_module+0x1c2e/0x21b3
    sys_init_module+0xef/0x117

Supid says:
 "Due to the new device model daisy driver will now try to find the
  parallel ports while trying to register its driver so that it can bind
  with them. Now, since daisy driver is loaded while parport bus is
  initialising the list of parport is still empty and it tries to load
  the lowlevel driver, which has an alias set to parport_pc, now causes
  a deadlock"

But I don't think the daisy driver should be loaded by the parport
initialization in the first place, so let's revert the whole change.

If the daisy driver can just initialize separately on its own (like a
driver should), instead of hooking into the parport init sequence
directly, this issue probably would go away.
Reported-and-bisected-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
Reported-by: default avatarMichal Kubecek <mkubecek@suse.cz>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a3ac7917
    • Jeff Layton's avatar
      locks: wake any locks blocked on request before deadlock check · 945ab8f6
      Jeff Layton authored 
      Andreas reported that he was seeing the tdbtorture test fail in some
cases with -EDEADLCK when it wasn't before. Some debugging showed that
deadlock detection was sometimes discovering the caller's lock request
itself in a dependency chain.

While we remove the request from the blocked_lock_hash prior to
reattempting to acquire it, any locks that are blocked on that request
will still be present in the hash and will still have their fl_blocker
pointer set to the current request.

This causes posix_locks_deadlock to find a deadlock dependency chain
when it shouldn't, as a lock request cannot block itself.

We are going to end up waking all of those blocked locks anyway when we
go to reinsert the request back into the blocked_lock_hash, so just do
it prior to checking for deadlocks. This ensures that any lock blocked
on the current request will no longer be part of any blocked request
chain.

URL: https://bugzilla.kernel.org/show_bug.cgi?id=202975
Fixes: 5946c431 ("fs/locks: allow a lock request to block other requests.")
Cc: stable@vger.kernel.org
Reported-by: default avatarAndreas Schneider <asn@redhat.com>
Signed-off-by: default avatarNeil Brown <neilb@suse.com>
Signed-off-by: default avatarJeff Layton <jlayton@kernel.org>
      945ab8f6
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf · 27602e2c
      David S. Miller authored 
      Alexei Starovoitov says:

====================
pull-request: bpf 2019-03-24

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) libbpf verision fix up from Daniel.

2) fix liveness propagation from Jakub.

3) fix verbose print of refcounted regs from Martin.

4) fix for large map allocations from Martynas.

5) fix use after free in sanitize_ptr_alu from Xu.
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      27602e2c
    • Alexei Starovoitov's avatar
      Merge branch 'libbpf-fixup' · a7d6ac37
      Alexei Starovoitov authored 
      Daniel Borkmann says:

====================
First one is fixing version in Makefile and shared object and
second one clarifies bump in version. Thanks!

v1 -> v2:
  - Fix up soname, thanks Stanislav!
====================
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      a7d6ac37
    • Daniel Borkmann's avatar
      bpf, libbpf: clarify bump in libbpf version info · 63197f78
      Daniel Borkmann authored 
      The current documentation suggests that we would need to bump the
libbpf version on every change. Lets clarify this a bit more and
reflect what we do today in practice, that is, bumping it once per
development cycle.

Fixes: 76d1b894 ("libbpf: Document API and ABI conventions")
Reported-by: default avatarStanislav Fomichev <sdf@google.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      63197f78
    • Daniel Borkmann's avatar
      bpf, libbpf: fix version info and add it to shared object · 1d382264
      Daniel Borkmann authored 
      Even though libbpf's versioning script for the linker (libbpf.map)
is pointing to 0.0.2, the BPF_EXTRAVERSION in the Makefile has
not been updated along with it and is therefore still on 0.0.1.

While fixing up, I also noticed that the generated shared object
versioning information is missing, typical convention is to have
a linker name (libbpf.so), soname (libbpf.so.0) and real name
(libbpf.so.0.0.2) for library management. This is based upon the
LIBBPF_VERSION as well.

The build will then produce the following bpf libraries:

  # ll libbpf*
  libbpf.a
  libbpf.so -> libbpf.so.0.0.2
  libbpf.so.0 -> libbpf.so.0.0.2
  libbpf.so.0.0.2

  # readelf -d libbpf.so.0.0.2 | grep SONAME
  0x000000000000000e (SONAME)             Library soname: [libbpf.so.0]

And install them accordingly:

  # rm -rf /tmp/bld; mkdir /tmp/bld; make -j$(nproc) O=/tmp/bld install

  Auto-detecting system features:
  ...                        libelf: [ on  ]
  ...                           bpf: [ on  ]

    CC       /tmp/bld/libbpf.o
    CC       /tmp/bld/bpf.o
    CC       /tmp/bld/nlattr.o
    CC       /tmp/bld/btf.o
    CC       /tmp/bld/libbpf_errno.o
    CC       /tmp/bld/str_error.o
    CC       /tmp/bld/netlink.o
    CC       /tmp/bld/bpf_prog_linfo.o
    CC       /tmp/bld/libbpf_probes.o
    CC       /tmp/bld/xsk.o
    LD       /tmp/bld/libbpf-in.o
    LINK     /tmp/bld/libbpf.a
    LINK     /tmp/bld/libbpf.so.0.0.2
    LINK     /tmp/bld/test_libbpf
    INSTALL  /tmp/bld/libbpf.a
    INSTALL  /tmp/bld/libbpf.so.0.0.2

  # ll /usr/local/lib64/libbpf.*
  /usr/local/lib64/libbpf.a
  /usr/local/lib64/libbpf.so -> libbpf.so.0.0.2
  /usr/local/lib64/libbpf.so.0 -> libbpf.so.0.0.2
  /usr/local/lib64/libbpf.so.0.0.2

Fixes: 1bf4b058 ("tools: bpftool: add probes for eBPF program types")
Fixes: 1b76c13e ("bpf tools: Introduce 'bpf' library and add bpf feature check")
Reported-by: default avatarStanislav Fomichev <sdf@google.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      1d382264
  9. 24 Mar, 2019 12 commits
    • Linus Torvalds's avatar
      Linux 5.1-rc2 · 8c2ffd91
      Linus Torvalds authored
      8c2ffd91
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 17403fa2
      Linus Torvalds authored 
      Pull ext4 fixes from Ted Ts'o:
 "Miscellaneous ext4 bug fixes for 5.1"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: prohibit fstrim in norecovery mode
  ext4: cleanup bh release code in ext4_ind_remove_space()
  ext4: brelse all indirect buffer in ext4_ind_remove_space()
  ext4: report real fs size after failed resize
  ext4: add missing brelse() in add_new_gdb_meta_bg()
  ext4: remove useless ext4_pin_inode()
  ext4: avoid panic during forced reboot
  ext4: fix data corruption caused by unaligned direct AIO
  ext4: fix NULL pointer dereference while journal is aborted
      17403fa2
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 231c807a
      Linus Torvalds authored 
      Pull scheduler updates from Thomas Gleixner:
 "Third more careful attempt for this set of fixes:

   - Prevent a 32bit math overflow in the cpufreq code

   - Fix a buffer overflow when scanning the cgroup2 cpu.max property

   - A set of fixes for the NOHZ scheduler logic to prevent waking up
     CPUs even if the capacity of the busy CPUs is sufficient along with
     other tweaks optimizing the behaviour for asymmetric systems
     (big/little)"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Skip LLC NOHZ logic for asymmetric systems
  sched/fair: Tune down misfit NOHZ kicks
  sched/fair: Comment some nohz_balancer_kick() kick conditions
  sched/core: Fix buffer overflow in cgroup2 property cpu.max
  sched/cpufreq: Fix 32-bit math overflow
      231c807a
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 49ef0156
      Linus Torvalds authored 
      Pull perf updates from Thomas Gleixner:
 "A larger set of perf updates.

  Not all of them are strictly fixes, but that's solely the tip
  maintainers fault as they let the timely -rc1 pull request fall
  through the cracks for various reasons including travel. So I'm
  sending this nevertheless because rebasing and distangling fixes and
  updates would be a mess and risky as well. As of tomorrow, a strict
  fixes separation is happening again. Sorry for the slip-up.

  Kernel:

   - Handle RECORD_MMAP vs. RECORD_MMAP2 correctly so different
     consumers of the mmap event get what they requested.

  Tools:

   - A larger set of updates to perf record/report/scripts vs. time
     stamp handling

   - More Python3 fixups

   - A pile of memory leak plumbing

   - perf BPF improvements and fixes

   - Finalize the perf.data directory storage"

[ Note: the kernel part is strictly a fix, the updates are purely to
  tooling       - Linus ]

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits)
  perf bpf: Show more BPF program info in print_bpf_prog_info()
  perf bpf: Extract logic to create program names from perf_event__synthesize_one_bpf_prog()
  perf tools: Save bpf_prog_info and BTF of new BPF programs
  perf evlist: Introduce side band thread
  perf annotate: Enable annotation of BPF programs
  perf build: Check what binutils's 'disassembler()' signature to use
  perf bpf: Process PERF_BPF_EVENT_PROG_LOAD for annotation
  perf symbols: Introduce DSO_BINARY_TYPE__BPF_PROG_INFO
  perf feature detection: Add -lopcodes to feature-libbfd
  perf top: Add option --no-bpf-event
  perf bpf: Save BTF information as headers to perf.data
  perf bpf: Save BTF in a rbtree in perf_env
  perf bpf: Save bpf_prog_info information as headers to perf.data
  perf bpf: Save bpf_prog_info in a rbtree in perf_env
  perf bpf: Make synthesize_bpf_events() receive perf_session pointer instead of perf_tool
  perf bpf: Synthesize bpf events with bpf_program__get_prog_info_linear()
  bpftool: use bpf_program__get_prog_info_linear() in prog.c:do_dump()
  tools lib bpf: Introduce bpf_program__get_prog_info_linear()
  perf record: Replace option --bpf-event with --no-bpf-event
  perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test()
  ...
      49ef0156
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 19caf581
      Linus Torvalds authored 
      Pull x86 fixes from Thomas Gleixner:
 "A set of x86 fixes:

   - Prevent potential NULL pointer dereferences in the HPET and HyperV
     code

   - Exclude the GART aperture from /proc/kcore to prevent kernel
     crashes on access

   - Use the correct macros for Cyrix I/O on Geode processors

   - Remove yet another kernel address printk leak

   - Announce microcode reload completion as requested by quite some
     people. Microcode loading has become popular recently.

   - Some 'Make Clang' happy fixlets

   - A few cleanups for recently added code"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/gart: Exclude GART aperture from kcore
  x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error
  x86/mm/pti: Make local symbols static
  x86/cpu/cyrix: Remove {get,set}Cx86_old macros used for Cyrix processors
  x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors
  x86/microcode: Announce reload operation's completion
  x86/hyperv: Prevent potential NULL pointer dereference
  x86/hpet: Prevent potential NULL pointer dereference
  x86/lib: Fix indentation issue, remove extra tab
  x86/boot: Restrict header scope to make Clang happy
  x86/mm: Don't leak kernel addresses
  x86/cpufeature: Fix various quality problems in the <asm/cpu_device_hd.h> header
      19caf581
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a75eda7b
      Linus Torvalds authored 
      Pull timer fixes from Thomas Gleixner:
 "A set of small fixes plus the removal of stale board support code:

   - Remove the board support code from the clpx711x clocksource driver.
     This change had fallen through the cracks and I'm sending it now
     rather than dealing with people who want to improve that stale code
     for 3 month.

   - Use the proper clocksource mask on RICSV

   - Make local scope functions and variables static"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/clps711x: Remove board support
  clocksource/drivers/riscv: Fix clocksource mask
  clocksource/drivers/mips-gic-timer: Make gic_compare_irqaction static
  clocksource/drivers/timer-ti-dm: Make omap_dm_timer_set_load_start() static
  clocksource/drivers/tcb_clksrc: Make tc_clksrc_suspend/resume() static
  clocksource/drivers/clps711x: Make clps711x_clksrc_init() static
  time/jiffies: Make refined_jiffies static
      a75eda7b
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f6cc519b
      Linus Torvalds authored 
      Pull locking fixes from Thomas Gleixner:
 "Two small fixes:

   - Cure a recently introduces error path hickup which tries to
     unregister a not registered lockdep key in te workqueue code

   - Prevent unaligned cmpxchg() crashes in the robust list handling
     code by sanity checking the user space supplied futex pointer"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Ensure that futex address is aligned in handle_futex_death()
  workqueue: Only unregister a registered lockdep key
      f6cc519b
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e08fef88
      Linus Torvalds authored 
      Pull irq fixes from Thomas Gleixner:
 "A set of fixes for the interrupt subsystem:

   - Remove secondary GIC support on systems w/o device-tree support

   - A set of small fixlets in various irqchip drivers

   - static and fall-through annotations

   - Kernel doc and typo fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Mark expected switch case fall-through
  genirq/devres: Remove excess parameter from kernel doc
  irqchip/irq-mvebu-sei: Make mvebu_sei_ap806_caps static
  irqchip/mbigen: Don't clear eventid when freeing an MSI
  irqchip/stm32: Don't set rising configuration registers at init
  irqchip/stm32: Don't clear rising/falling config registers at init
  dt-bindings: irqchip: renesas-irqc: Document r8a774c0 support
  irqchip/mmp: Make mmp_irq_domain_ops static
  irqchip/brcmstb-l2: Make two init functions static
  genirq: Fix typo in comment of IRQD_MOVE_PCNTXT
  irqchip/gic-v3-its: Fix comparison logic in lpi_range_cmp
  irqchip/gic: Drop support for secondary GIC in non-DT systems
  irqchip/imx-irqsteer: Fix of_property_read_u32() error handling
      e08fef88
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1ebf5afb
      Linus Torvalds authored 
      Pull core fixes from Thomas Gleixner:
 "Two small fixes:

   - Move the large objtool_file struct off the stack so objtool works
     in setups with a tight stack limit.

   - Make a few variables static in the watchdog core code"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  watchdog/core: Make variables static
  objtool: Move objtool_file struct off the stack
      1ebf5afb
    • Linus Torvalds's avatar
      Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux · 9fc13bbd
      Linus Torvalds authored 
      Pull thermal management fixes from Zhang Rui:

 - Fix a wrong __percpu structure declaration in intel_powerclamp driver
   (Luc Van Oostenryck)

 - Fix truncated name of the idle injection kthreads created by
   intel_powerclamp driver (Zhang Rui)

 - Fix the missing UUID supports in int3400 thermal driver (Matthew
   Garrett)

 - Fix a crash when accessing the debugfs of bcm2835 SoC thermal driver
   (Phil Elwell)

 - A couple of trivial fixes/cleanups in some SoC thermal drivers

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  thermal/intel_powerclamp: fix truncated kthread name
  thermal: mtk: Allocate enough space for mtk_thermal.
  thermal/int340x_thermal: fix mode setting
  thermal/int340x_thermal: Add additional UUIDs
  thermal: cpu_cooling: Remove unused cur_freq variable
  thermal: bcm2835: Fix crash in bcm2835_thermal_debugfs
  thermal: samsung: Fix incorrect check after code merge
  thermal/intel_powerclamp: fix __percpu declaration of worker_data
      9fc13bbd
    • Linus Torvalds's avatar
      Merge tag '5.1-rc1-cifs-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 · 38104c00
      Linus Torvalds authored 
      Pull smb3 fixes from Steve French:

 - two fixes for stable for guest mount problems with smb3.1.1

 - two fixes for crediting (SMB3 flow control) on resent requests

 - a byte range lock leak fix

 - two fixes for incorrect rc mappings

* tag '5.1-rc1-cifs-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update internal module version number
  SMB3: Fix SMB3.1.1 guest mounts to Samba
  cifs: Fix slab-out-of-bounds when tracing SMB tcon
  cifs: allow guest mounts to work for smb3.11
  fix incorrect error code mapping for OBJECTID_NOT_FOUND
  cifs: fix that return -EINVAL when do dedupe operation
  CIFS: Fix an issue with re-sending rdata when transport returning -EAGAIN
  CIFS: Fix an issue with re-sending wdata when transport returning -EAGAIN
      38104c00
    • Linus Torvalds's avatar
      Merge tag 'auxdisplay-for-linus-v5.1-rc2' of git://github.com/ojeda/linux · e0046bb3
      Linus Torvalds authored 
      Pull auxdisplay updates from Miguel Ojeda:
 "A few fixes and improvements for auxdisplay:

   - Series to fix a memory leak in hd44780 while introducing
     charlcd_free(). From Andy Shevchenko

   - Series to clean up the Kconfig menus and a couple of improvements
     for charlcd. From Mans Rullgard"

* tag 'auxdisplay-for-linus-v5.1-rc2' of git://github.com/ojeda/linux:
  auxdisplay: charlcd: make backlight initial state configurable
  auxdisplay: charlcd: simplify init message display
  auxdisplay: deconfuse configuration
  auxdisplay: hd44780: Convert to use charlcd_free()
  auxdisplay: panel: Convert to use charlcd_free()
  auxdisplay: charlcd: Introduce charlcd_free() helper
  auxdisplay: charlcd: Move to_priv() to charlcd namespace
  auxdisplay: hd44780: Fix memory leak on ->remove()
      e0046bb3
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