Commit Graph

902618 Commits

Author SHA1 Message Date
Linus Torvalds
527630fbf4 A handful of clk driver fixes. Mostly they're around the i.MX drivers
fixing the parents of a few clks and making KASAN happy with how the
 message passing code works. Besides that we have a TI driver fix for the
 RTC parent and a fix for the basic gate type registration functions
 introduced this release where they didn't actually pass the arguments in
 the right places to the multiplexer function down below.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A handful of clk driver fixes.

  Mostly they're around the i.MX drivers fixing the parents of a few
  clks and making KASAN happy with how the message passing code works.

  Besides that we have a TI driver fix for the RTC parent and a fix for
  the basic gate type registration functions introduced this release
  where they didn't actually pass the arguments in the right places to
  the multiplexer function down below"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: imx: Align imx sc clock parent msg structs to 4
  clk: imx: Align imx sc clock msg structs to 4
  clk: Pass correct arguments to __clk_hw_register_gate()
  clk: ti: am43xx: Fix clock parent for RTC clock
  clk: imx8mp: Correct the enet_qos parent clock
  clk: imx8mp: Correct IMX8MP_CLK_HDMI_AXI clock parent
2020-03-27 09:33:48 -07:00
Linus Torvalds
7bf8df68cb drm fixes for 5.6-rc8/final
radeon/amdgpu/dma-buf:
 - sg list fixes
 
 scheduler:
 - oops fix
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Merge tag 'drm-fixes-2020-03-27' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Pretty quiet: some minor sg mapping fixes for 3 drivers, and a single
  oops fix for the scheduler. I'm hoping nobody tries to send me a fixes
  pull today but I'll keep an eye out of the weekend.

  radeon/amdgpu/dma-buf:
   - sg list fixes

  scheduler:
   - oops fix"

* tag 'drm-fixes-2020-03-27' of git://anongit.freedesktop.org/drm/drm:
  drm/scheduler: fix rare NULL ptr race
  drm/radeon: fix scatter-gather mapping with user pages
  drm/amdgpu: fix scatter-gather mapping with user pages
  drm/prime: use dma length macro when mapping sg
2020-03-27 09:21:52 -07:00
Helge Deller
ededa081ed parisc: Fix defconfig selection
Fix the recursive loop when running "make ARCH=parisc defconfig".

Fixes: 84669923e1 ("parisc: Regenerate parisc defconfigs")
Noticed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Helge Deller <deller@gmx.de>
2020-03-27 15:37:24 +01:00
Dirk Mueller
e33a814e77 scripts/dtc: Remove redundant YYLOC global declaration
gcc 10 will default to -fno-common, which causes this error at link
time:

  (.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here

This is because both dtc-lexer as well as dtc-parser define the same
global symbol yyloc. Before with -fcommon those were merged into one
defintion. The proper solution would be to to mark this as "extern",
however that leads to:

  dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
   26 | extern YYLTYPE yylloc;
      |                ^~~~~~
In file included from dtc-lexer.l:24:
dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
  127 | extern YYLTYPE yylloc;
      |                ^~~~~~
cc1: all warnings being treated as errors

which means the declaration is completely redundant and can just be
dropped.

Signed-off-by: Dirk Mueller <dmueller@suse.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[robh: cherry-pick from upstream]
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-27 08:31:13 -06:00
Yubo Xie
749da8ca97 clocksource/drivers/hyper-v: Make sched clock return nanoseconds correctly
The sched clock read functions return the HV clock (100ns granularity)
without converting it to nanoseconds.

Add the missing conversion.

Fixes: bd00cd52d5 ("clocksource/drivers/hyperv: Add Hyper-V specific sched clock function")
Signed-off-by: Yubo Xie <yuboxie@microsoft.com>
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200327021159.31429-1-Tianyu.Lan@microsoft.com
2020-03-27 12:27:45 +01:00
Linus Torvalds
f3e69428b5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:

 - a fix to generate proper timestamps on key autorepeat events that
   were broken recently

 - a fix for Synaptics driver to only activate reduced reporting mode
   when explicitly requested

 - a new keycode for "selective screenshot" function

 - other assorted fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: fix stale timestamp on key autorepeat events
  Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
  Input: avoid BIT() macro usage in the serio.h UAPI header
  Input: synaptics-rmi4 - set reduced reporting mode only when requested
  Input: synaptics - enable RMI on HP Envy 13-ad105ng
  Input: allocate keycode for "Selective Screenshot" key
  Input: tm2-touchkey - add support for Coreriver TC360 variant
  dt-bindings: input: add Coreriver TC360 binding
  dt-bindings: vendor-prefixes: Add Coreriver vendor prefix
  Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
2020-03-26 20:49:44 -07:00
Marek Vasut
8262e6f9b1 net: ks8851-ml: Fix IO operations, again
This patch reverts 5829210483 ("net: ks8851-ml: Fix 16-bit IO operation")
and edacb098ea ("net: ks8851-ml: Fix 16-bit data access"), because it
turns out these were only necessary due to buggy hardware. This patch adds
a check for such a buggy hardware to prevent any such mistakes again.

While working further on the KS8851 driver, it came to light that the
KS8851-16MLL is capable of switching bus endianness by a hardware strap,
EESK pin. If this strap is incorrect, the IO accesses require such endian
swapping as is being reverted by this patch. Such swapping also impacts
the performance significantly.

Hence, in addition to removing it, detect that the hardware is broken,
report to user, and fail to bind with such hardware.

Fixes: 5829210483 ("net: ks8851-ml: Fix 16-bit IO operation")
Fixes: edacb098ea ("net: ks8851-ml: Fix 16-bit data access")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-26 20:20:19 -07:00
Dave Airlie
c4b979ebca Merge tag 'amd-drm-fixes-5.6-2020-03-26' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.6-2020-03-26:

Scheduler:
- Fix a race condition that could result in a segfault

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200326144538.3937-1-alexander.deucher@amd.com
2020-03-27 13:03:17 +10:00
Dave Airlie
5117c363eb drm-misc-fixes for v5.6:
- SG fixes for prime, radeon and amdgpu.
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Merge tag 'drm-misc-fixes-2020-03-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v5.6:
- SG fixes for prime, radeon and amdgpu.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ef10e822-76dd-125d-ec1f-9a78c5f76bc3@linux.intel.com
2020-03-27 12:33:23 +10:00
Atish Patra
2191b4f298
RISC-V: Move all address space definition macros to one place
We get the following compilation error if CONFIG_SPARSEMEM_VMEMMAP is set.

---------------------------------------------------------------
./arch/riscv/include/asm/pgtable-64.h: In function ‘pud_page’:
./include/asm-generic/memory_model.h:54:29: error: ‘vmemmap’ undeclared
(first use in this function); did you mean ‘mem_map’?
 #define __pfn_to_page(pfn) (vmemmap + (pfn))
                             ^~~~~~~
./include/asm-generic/memory_model.h:82:21: note: in expansion of
macro ‘__pfn_to_page’

 #define pfn_to_page __pfn_to_page
                     ^~~~~~~~~~~~~
./arch/riscv/include/asm/pgtable-64.h:70:9: note: in expansion of macro
‘pfn_to_page’
  return pfn_to_page(pud_val(pud) >> _PAGE_PFN_SHIFT);
---------------------------------------------------------------

Fix the compliation errors by moving all the address space definition
macros before including pgtable-64.h.

Fixes: 8ad8b72721 (riscv: Add KASAN support)

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26 19:26:11 -07:00
Dmitry Torokhov
4134252ab7 Input: fix stale timestamp on key autorepeat events
We need to refresh timestamp when emitting key autorepeat events, otherwise
they will carry timestamp of the original key press event.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206929
Fixes: 3b51c44bd6 ("Input: allow drivers specify timestamp for input events")
Cc: stable@vger.kernel.org
Reported-by: teika kazura <teika@gmx.com>
Tested-by: teika kazura <teika@gmx.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-03-26 17:05:08 -07:00
David Howells
9efcc4a129 afs: Fix unpinned address list during probing
When it's probing all of a fileserver's interfaces to find which one is
best to use, afs_do_probe_fileserver() takes a lock on the server record
and notes the pointer to the address list.

It doesn't, however, pin the address list, so as soon as it drops the
lock, there's nothing to stop the address list from being freed under
us.

Fix this by taking a ref on the address list inside the locked section
and dropping it at the end of the function.

Fixes: 3bf0fb6f33 ("afs: Probe multiple fileservers simultaneously")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-26 16:04:29 -07:00
Linus Torvalds
60268940cd A patch for a rather old regression in fullness handling and two memory
leak fixes, marked for stable.
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Merge tag 'ceph-for-5.6-rc8' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A patch for a rather old regression in fullness handling and two
  memory leak fixes, marked for stable"

* tag 'ceph-for-5.6-rc8' of git://github.com/ceph/ceph-client:
  ceph: fix memory leak in ceph_cleanup_snapid_map()
  libceph: fix alloc_msg_with_page_vector() memory leaks
  ceph: check POOL_FLAG_FULL/NEARFULL in addition to OSDMAP_FULL/NEARFULL
2020-03-26 15:44:41 -07:00
Linus Torvalds
a53071bd34 x86 bug fixes.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "x86 bug fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: X86: Narrow down the IPI fastpath to single target IPI
  KVM: LAPIC: Also cancel preemption timer when disarm LAPIC timer
  KVM: VMX: don't allow memory operands for inline asm that modifies SP
  KVM: LAPIC: Mark hrtimer for period or oneshot mode to expire in hard interrupt context
  KVM: SVM: Issue WBINVD after deactivating an SEV guest
  KVM: SVM: document KVM_MEM_ENCRYPT_OP, let userspace detect if SEV is available
  KVM: x86: remove bogus user-triggerable WARN_ON
2020-03-26 15:30:49 -07:00
Linus Torvalds
23cb8490c0 MAINTAINERS: fix bad file pattern
Testing 'parse-maintainers' due to the previous commit shows a bad file
pattern for the "TI VPE/CAL DRIVERS" entry in the MAINTAINERS file.

There's also a lot of mis-ordered entries, but I'm still a bit nervous
about the inevitable and annoying merge problems it would probably cause
to fix them up.

The MAINTAINERS file is one of my least favorite files due to being huge
and centralized, but fixing it is also horribly painful for that reason.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-26 15:12:19 -07:00
Joe Perches
5cdbec108f parse-maintainers: Do not sort section content by default
Add an --order switch to control section reordering.
Default for --order is off.

Change the default ordering to a slightly more sensible:

M:  Person acting as a maintainer
R:  Person acting as a patch reviewer
L:  Mailing list where patches should be sent
S:  Maintenance status
W:  URI for general information
Q:  URI for patchwork tracking
B:  URI for bug tracking/submission
C:  URI for chat
P:  URI or file for subsystem specific coding styles
T:  SCM tree type and location
F:  File and directory pattern
X:  File and directory exclusion pattern
N:  File glob
K:  Keyword - patch content regex

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-26 15:08:27 -07:00
Dmitry Torokhov
fbf66796a0 Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
We should try to keep keycodes sequential unless there is a reason to leave
a gap in numbering, so let's move it from 0x280 to 0x27a while we still
can.

Fixes: 3b059da983 ("Input: allocate keycode for Selective Screenshot key")
Acked-by: Rajat Jain <rajatja@google.com>
Link: https://lore.kernel.org/r/20200326182711.GA259753@dtor-ws
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-03-26 12:55:17 -07:00
Anup Patel
bd6f20333c
RISC-V: Only select essential drivers for SOC_VIRT config
The kconfig select causes build failues for SOC_VIRT config becaus
we are selecting lot of VIRTIO drivers without selecting all required
dependencies.

Better approach is to only select essential drivers from SOC_VIRT
config option and enable required VIRTIO drivers using defconfigs.

Fixes: 759bdc1681 ("RISC-V: Add kconfig option for QEMU virt machine")
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26 12:35:04 -07:00
David S. Miller
328f5bb993 We have the following fixes:
* drop data packets if there's no key for them anymore, after
    there had been one, to avoid sending them in clear when
    hostapd removes the key before it removes the station and
    the packets are still queued
  * check port authorization again after dequeue, to avoid
    sending packets if the station is no longer authorized
  * actually remove the authorization flag before the key so
    packets are also dropped properly because of this
  * fix nl80211 control port packet tagging to handle them as
    packets allowed to go out without encryption
  * fix NL80211_ATTR_CHANNEL_WIDTH outgoing netlink attribute
    width (should be 32 bits, not 8)
  * don't WARN in a CSA scenario that happens on some APs
  * fix HE spatial reuse element size calculation
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Merge tag 'mac80211-for-net-2020-03-26' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
We have the following fixes:
 * drop data packets if there's no key for them anymore, after
   there had been one, to avoid sending them in clear when
   hostapd removes the key before it removes the station and
   the packets are still queued
 * check port authorization again after dequeue, to avoid
   sending packets if the station is no longer authorized
 * actually remove the authorization flag before the key so
   packets are also dropped properly because of this
 * fix nl80211 control port packet tagging to handle them as
   packets allowed to go out without encryption
 * fix NL80211_ATTR_CHANNEL_WIDTH outgoing netlink attribute
   width (should be 32 bits, not 8)
 * don't WARN in a CSA scenario that happens on some APs
 * fix HE spatial reuse element size calculation
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-26 12:03:02 -07:00
Ido Schimmel
f6bf1bafdc mlxsw: spectrum_mr: Fix list iteration in error path
list_for_each_entry_from_reverse() iterates backwards over the list from
the current position, but in the error path we should start from the
previous position.

Fix this by using list_for_each_entry_continue_reverse() instead.

This suppresses the following error from coccinelle:

drivers/net/ethernet/mellanox/mlxsw//spectrum_mr.c:655:34-38: ERROR:
invalid reference to the index variable of the iterator on line 636

Fixes: c011ec1bbf ("mlxsw: spectrum: Add the multicast routing offloading logic")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-26 12:00:45 -07:00
Xu Wang
bcaeb886ad qlcnic: Fix bad kzalloc null test
In qlcnic_83xx_get_reset_instruction_template, the variable
of null test is bad, so correct it.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-26 11:44:22 -07:00
Linus Torvalds
9420e8ade4 Third RDMA 5.6 pull request
- Several MAINTAINERS updates
 
 - Memory leak regression in ODP
 
 - Several fixes for syzkaller related crashes. Google recently taught
   syzkaller to create the software RDMA devices
 
 - Crash fixes for HFI1
 
 - Several fixes for mlx5 crashes
 
 - Prevent unprivileged access to an unsafe mlx5 HW resource
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "A small set of late-rc patches, mostly fixes for various crashers,
  some syzkaller fixes and a mlx5 HW limitation:

   - Several MAINTAINERS updates

   - Memory leak regression in ODP

   - Several fixes for syzkaller related crashes. Google recently taught
     syzkaller to create the software RDMA devices

   - Crash fixes for HFI1

   - Several fixes for mlx5 crashes

   - Prevent unprivileged access to an unsafe mlx5 HW resource"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/mlx5: Block delay drop to unprivileged users
  RDMA/mlx5: Fix access to wrong pointer while performing flush due to error
  RDMA/core: Ensure security pkey modify is not lost
  MAINTAINERS: Clean RXE section and add Zhu as RXE maintainer
  IB/hfi1: Ensure pq is not left on waitlist
  IB/rdmavt: Free kernel completion queue when done
  RDMA/mad: Do not crash if the rdma device does not have a umad interface
  RDMA/core: Fix missing error check on dev_set_name()
  RDMA/nl: Do not permit empty devices names during RDMA_NLDEV_CMD_NEWLINK/SET
  RDMA/mlx5: Fix the number of hwcounters of a dynamic counter
  MAINTAINERS: Update maintainers for HISILICON ROCE DRIVER
  RDMA/odp: Fix leaking the tgid for implicit ODP
2020-03-26 10:39:36 -07:00
Johannes Berg
b95d2ccd2c mac80211: set IEEE80211_TX_CTRL_PORT_CTRL_PROTO for nl80211 TX
When a frame is transmitted via the nl80211 TX rather than as a
normal frame, IEEE80211_TX_CTRL_PORT_CTRL_PROTO wasn't set and
this will lead to wrong decisions (rate control etc.) being made
about the frame; fix this.

Fixes: 9118064914 ("mac80211: Add support for tx_control_port")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200326155333.f183f52b02f0.I4054e2a8c11c2ddcb795a0103c87be3538690243@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-26 15:54:12 +01:00
Johannes Berg
b16798f5b9 mac80211: mark station unauthorized before key removal
If a station is still marked as authorized, mark it as no longer
so before removing its keys. This allows frames transmitted to it
to be rejected, providing additional protection against leaking
plain text data during the disconnection flow.

Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200326155133.ccb4fb0bb356.If48f0f0504efdcf16b8921f48c6d3bb2cb763c99@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-26 15:52:25 +01:00
Jouni Malinen
ce2e1ca703 mac80211: Check port authorization in the ieee80211_tx_dequeue() case
mac80211 used to check port authorization in the Data frame enqueue case
when going through start_xmit(). However, that authorization status may
change while the frame is waiting in a queue. Add a similar check in the
dequeue case to avoid sending previously accepted frames after
authorization change. This provides additional protection against
potential leaking of frames after a station has been disconnected and
the keys for it are being removed.

Cc: stable@vger.kernel.org
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200326155133.ced84317ea29.I34d4c47cd8cc8a4042b38a76f16a601fbcbfd9b3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-26 15:52:14 +01:00
Ilan Peer
05dcb8bb25 cfg80211: Do not warn on same channel at the end of CSA
When cfg80211_update_assoc_bss_entry() is called, there is a
verification that the BSS channel actually changed. As some APs use
CSA also for bandwidth changes, this would result with a kernel
warning.

Fix this by removing the WARN_ON().

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.96316ada0e8d.I6710376b1b4257e5f4712fc7ab16e2b638d512aa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-26 15:50:10 +01:00
Johannes Berg
a0761a3017 mac80211: drop data frames without key on encrypted links
If we know that we have an encrypted link (based on having had
a key configured for TX in the past) then drop all data frames
in the key selection handler if there's no key anymore.

This fixes an issue with mac80211 internal TXQs - there we can
buffer frames for an encrypted link, but then if the key is no
longer there when they're dequeued, the frames are sent without
encryption. This happens if a station is disconnected while the
frames are still on the TXQ.

Detecting that a link should be encrypted based on a first key
having been configured for TX is fine as there are no use cases
for a connection going from with encryption to no encryption.
With extended key IDs, however, there is a case of having a key
configured for only decryption, so we can't just trigger this
behaviour on a key being configured.

Cc: stable@vger.kernel.org
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.6865c7f28a14.I9fb1d911b064262d33e33dfba730cdeef83926ca@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-26 15:49:24 +01:00
Yintian Tao
3c0fdf3302 drm/scheduler: fix rare NULL ptr race
There is one one corner case at dma_fence_signal_locked
which will raise the NULL pointer problem just like below.
->dma_fence_signal
    ->dma_fence_signal_locked
	->test_and_set_bit
here trigger dma_fence_release happen due to the zero of fence refcount.

->dma_fence_put
    ->dma_fence_release
	->drm_sched_fence_release_scheduled
	    ->call_rcu
here make the union fled “cb_list” at finished fence
to NULL because struct rcu_head contains two pointer
which is same as struct list_head cb_list

Therefore, to hold the reference of finished fence at drm_sched_process_job
to prevent the null pointer during finished fence dma_fence_signal

[  732.912867] BUG: kernel NULL pointer dereference, address: 0000000000000008
[  732.914815] #PF: supervisor write access in kernel mode
[  732.915731] #PF: error_code(0x0002) - not-present page
[  732.916621] PGD 0 P4D 0
[  732.917072] Oops: 0002 [#1] SMP PTI
[  732.917682] CPU: 7 PID: 0 Comm: swapper/7 Tainted: G           OE     5.4.0-rc7 #1
[  732.918980] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
[  732.920906] RIP: 0010:dma_fence_signal_locked+0x3e/0x100
[  732.938569] Call Trace:
[  732.939003]  <IRQ>
[  732.939364]  dma_fence_signal+0x29/0x50
[  732.940036]  drm_sched_fence_finished+0x12/0x20 [gpu_sched]
[  732.940996]  drm_sched_process_job+0x34/0xa0 [gpu_sched]
[  732.941910]  dma_fence_signal_locked+0x85/0x100
[  732.942692]  dma_fence_signal+0x29/0x50
[  732.943457]  amdgpu_fence_process+0x99/0x120 [amdgpu]
[  732.944393]  sdma_v4_0_process_trap_irq+0x81/0xa0 [amdgpu]

v2: hold the finished fence at drm_sched_process_job instead of
    amdgpu_fence_process
v3: resume the blank line

Signed-off-by: Yintian Tao <yttao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-26 10:22:36 -04:00
Wanpeng Li
e1be9ac8e6 KVM: X86: Narrow down the IPI fastpath to single target IPI
The original single target IPI fastpath patch forgot to filter the
ICR destination shorthand field. Multicast IPI is not suitable for
this feature since wakeup the multiple sleeping vCPUs will extend
the interrupt disabled time, it especially worse in the over-subscribe
and VM has a little bit more vCPUs scenario. Let's narrow it down to
single target IPI.

Two VMs, each is 76 vCPUs, one running 'ebizzy -M', the other
running cyclictest on all vCPUs, w/ this patch, the avg score
of cyclictest can improve more than 5%. (pv tlb, pv ipi, pv
sched yield are disabled during testing to avoid the disturb).

Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1585189202-1708-3-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-26 05:44:21 -04:00
Leonard Crestez
8400ab8896 clk: imx: Align imx sc clock parent msg structs to 4
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: 666aed2d13 ("clk: imx: scu: add set parent support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/aad021e432b3062c142973d09b766656eec18fde.1582216144.git.leonard.crestez@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-25 18:46:05 -07:00
Leonard Crestez
a0ae04a256 clk: imx: Align imx sc clock msg structs to 4
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: fe37b48204 ("clk: imx: add scu clock common part")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/10e97a04980d933b2cfecb6b124bf9046b6e4f16.1582216144.git.leonard.crestez@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-25 18:45:59 -07:00
Stephen Boyd
4e93430120 clk: Pass correct arguments to __clk_hw_register_gate()
I copy/pasted these macros and forgot to update the argument
names and where they're passed to. Fix it so that these macros make
sense.

Reported-by: Maxime Ripard <maxime@cerno.tech>
Fixes: 194efb6e26 ("clk: gate: Add support for specifying parents via DT/pointers")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20200325022257.148244-1-sboyd@kernel.org
Tested-by: Maxime Ripard <mripard@kernel.org>
2020-03-25 17:38:23 -07:00
Linus Torvalds
1b649e0bca Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Fix deadlock in bpf_send_signal() from Yonghong Song.

 2) Fix off by one in kTLS offload of mlx5, from Tariq Toukan.

 3) Add missing locking in iwlwifi mvm code, from Avraham Stern.

 4) Fix MSG_WAITALL handling in rxrpc, from David Howells.

 5) Need to hold RTNL mutex in tcindex_partial_destroy_work(), from Cong
    Wang.

 6) Fix producer race condition in AF_PACKET, from Willem de Bruijn.

 7) cls_route removes the wrong filter during change operations, from
    Cong Wang.

 8) Reject unrecognized request flags in ethtool netlink code, from
    Michal Kubecek.

 9) Need to keep MAC in reset until PHY is up in bcmgenet driver, from
    Doug Berger.

10) Don't leak ct zone template in act_ct during replace, from Paul
    Blakey.

11) Fix flushing of offloaded netfilter flowtable flows, also from Paul
    Blakey.

12) Fix throughput drop during tx backpressure in cxgb4, from Rahul
    Lakkireddy.

13) Don't let a non-NULL skb->dev leave the TCP stack, from Eric
    Dumazet.

14) TCP_QUEUE_SEQ socket option has to update tp->copied_seq as well,
    also from Eric Dumazet.

15) Restrict macsec to ethernet devices, from Willem de Bruijn.

16) Fix reference leak in some ethtool *_SET handlers, from Michal
    Kubecek.

17) Fix accidental disabling of MSI for some r8169 chips, from Heiner
    Kallweit.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (138 commits)
  net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build
  net: ena: Add PCI shutdown handler to allow safe kexec
  selftests/net/forwarding: define libs as TEST_PROGS_EXTENDED
  selftests/net: add missing tests to Makefile
  r8169: re-enable MSI on RTL8168c
  net: phy: mdio-bcm-unimac: Fix clock handling
  cxgb4/ptp: pass the sign of offset delta in FW CMD
  net: dsa: tag_8021q: replace dsa_8021q_remove_header with __skb_vlan_pop
  net: cbs: Fix software cbs to consider packet sending time
  net/mlx5e: Do not recover from a non-fatal syndrome
  net/mlx5e: Fix ICOSQ recovery flow with Striding RQ
  net/mlx5e: Fix missing reset of SW metadata in Striding RQ reset
  net/mlx5e: Enhance ICOSQ WQE info fields
  net/mlx5_core: Set IB capability mask1 to fix ib_srpt connection failure
  selftests: netfilter: add nfqueue test case
  netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress
  netfilter: nft_fwd_netdev: validate family and chain type
  netfilter: nft_set_rbtree: Detect partial overlaps on insertion
  netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start()
  netfilter: nft_set_pipapo: Separate partial and complete overlap cases on insertion
  ...
2020-03-25 13:58:05 -07:00
Linus Torvalds
1dfb642b10 GPIO fixes for the v5.6 series:
- One core quirk by myself to fix the .irq_disable()
   semantics when the gpiolib core takes over this callback.
 
 - The rest is an elaborate series of 4 patches fixing Intel
   laptop ACPI wakeup quirks.
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Merge tag 'gpio-v5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:

 - One core quirk by myself to fix the .irq_disable() semantics when the
   gpiolib core takes over this callback.

 - The rest is an elaborate series of four patches fixing Intel laptop
   ACPI wakeup quirks.

* tag 'gpio-v5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model
  gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 BYT + AXP288 model
  gpiolib: acpi: Rework honor_wakeup option into an ignore_wake option
  gpiolib: acpi: Correct comment for HP x2 10 honor_wakeup quirk
  gpiolib: Fix irq_disable() semantics
2020-03-25 13:52:36 -07:00
David S. Miller
2910594fd3 wireless-drivers fixes for v5.6
Fourth, and last, set of fixes for v5.6. Just two important fixes to
 iwlwifi regressions.
 
 iwlwifi
 
 * fix GEO_TX_POWER_LIMIT command on certain devices which caused
   firmware to crash during initialisation
 
 * add back device ids for three devices which were accidentally
   removed
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Merge tag 'wireless-drivers-2020-03-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for v5.6

Fourth, and last, set of fixes for v5.6. Just two important fixes to
iwlwifi regressions.

iwlwifi

* fix GEO_TX_POWER_LIMIT command on certain devices which caused
  firmware to crash during initialisation

* add back device ids for three devices which were accidentally
  removed
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 13:12:26 -07:00
Pablo Neira Ayuso
2c64605b59 net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build
net/netfilter/nft_fwd_netdev.c: In function ‘nft_fwd_netdev_eval’:
    net/netfilter/nft_fwd_netdev.c:32:10: error: ‘struct sk_buff’ has no member named ‘tc_redirected’
      pkt->skb->tc_redirected = 1;
              ^~
    net/netfilter/nft_fwd_netdev.c:33:10: error: ‘struct sk_buff’ has no member named ‘tc_from_ingress’
      pkt->skb->tc_from_ingress = 1;
              ^~

To avoid a direct dependency with tc actions from netfilter, wrap the
redirect bits around CONFIG_NET_REDIRECT and move helpers to
include/linux/skbuff.h. Turn on this toggle from the ifb driver, the
only existing client of these bits in the tree.

This patch adds skb_set_redirected() that sets on the redirected bit
on the skbuff, it specifies if the packet was redirect from ingress
and resets the timestamp (timestamp reset was originally missing in the
netfilter bugfix).

Fixes: bcfabee1af ("netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress")
Reported-by: noreply@ellerman.id.au
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 12:24:33 -07:00
Guilherme G. Piccoli
428c491332 net: ena: Add PCI shutdown handler to allow safe kexec
Currently ENA only provides the PCI remove() handler, used during rmmod
for example. This is not called on shutdown/kexec path; we are potentially
creating a failure scenario on kexec:

(a) Kexec is triggered, no shutdown() / remove() handler is called for ENA;
instead pci_device_shutdown() clears the master bit of the PCI device,
stopping all DMA transactions;

(b) Kexec reboot happens and the device gets enabled again, likely having
its FW with that DMA transaction buffered; then it may trigger the (now
invalid) memory operation in the new kernel, corrupting kernel memory area.

This patch aims to prevent this, by implementing a shutdown() handler
quite similar to the remove() one - the difference being the handling
of the netdev, which is unregistered on remove(), but following the
convention observed in other drivers, it's only detached on shutdown().

This prevents an odd issue in AWS Nitro instances, in which after the 2nd
kexec the next one will fail with an initrd corruption, caused by a wild
DMA write to invalid kernel memory. The lspci output for the adapter
present in my instance is:

00:05.0 Ethernet controller [0200]: Amazon.com, Inc. Elastic Network
Adapter (ENA) [1d0f:ec20]

Suggested-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Acked-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 12:03:29 -07:00
Hangbin Liu
c085dbfb1c selftests/net/forwarding: define libs as TEST_PROGS_EXTENDED
The lib files should not be defined as TEST_PROGS, or we will run them
in run_kselftest.sh.

Also remove ethtool_lib.sh exec permission.

Fixes: 81573b18f2 ("selftests/net/forwarding: add Makefile to install tests")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 12:01:18 -07:00
Hangbin Liu
919a23e9d6 selftests/net: add missing tests to Makefile
Find some tests are missed in Makefile by running:
for file in $(ls *.sh); do grep -q $file Makefile || echo $file; done

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 11:33:02 -07:00
Linus Torvalds
e2cf67f668 zonefs fixes for 5.6 final
A single fix in this pull request to correctly handle the size of
 read-only zone files (from me).
 
 Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
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Merge tag 'zonefs-5.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs

Pull zonefs fix from Damien Le Moal:
 "A single fix from me to correctly handle the size of read-only zone
  files"

* tag 'zonefs-5.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonfs: Fix handling of read-only zones
2020-03-25 10:34:02 -07:00
Shane Francis
47f7826c52 drm/radeon: fix scatter-gather mapping with user pages
Calls to dma_map_sg may return less segments / entries than requested
if they fall on page bounderies. The old implementation did not
support this use case.

Fixes: be62dbf554 ("iommu/amd: Convert AMD iommu driver to the dma-iommu api")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206461
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206895
Bug: https://gitlab.freedesktop.org/drm/amd/issues/1056
Signed-off-by: Shane Francis <bigbeeshane@gmail.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200325090741.21957-4-bigbeeshane@gmail.com
Cc: stable@vger.kernel.org
2020-03-25 12:10:55 -04:00
Shane Francis
0199172f93 drm/amdgpu: fix scatter-gather mapping with user pages
Calls to dma_map_sg may return less segments / entries than requested
if they fall on page bounderies. The old implementation did not
support this use case.

Fixes: be62dbf554 ("iommu/amd: Convert AMD iommu driver to the dma-iommu api")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206461
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206895
Bug: https://gitlab.freedesktop.org/drm/amd/issues/1056
Signed-off-by: Shane Francis <bigbeeshane@gmail.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200325090741.21957-3-bigbeeshane@gmail.com
Cc: stable@vger.kernel.org
2020-03-25 12:10:40 -04:00
Shane Francis
42e67b479e drm/prime: use dma length macro when mapping sg
As dma_map_sg can reorganize scatter-gather lists in a
way that can cause some later segments to be empty we should
always use the sg_dma_len macro to fetch the actual length.

This could now be 0 and not need to be mapped to a page or
address array

Fixes: be62dbf554 ("iommu/amd: Convert AMD iommu driver to the dma-iommu api")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206461
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206895
Bug: https://gitlab.freedesktop.org/drm/amd/issues/1056
Signed-off-by: Shane Francis <bigbeeshane@gmail.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200325090741.21957-2-bigbeeshane@gmail.com
Cc: stable@vger.kernel.org
2020-03-25 12:01:23 -04:00
Marek Szyprowski
c8042d1e5c soc: samsung: chipid: Fix return value on non-Exynos platforms
Correct the probe return value to -ENODEV on non-Exynos platforms.

Link: https://lore.kernel.org/r/20200316175652.5604-4-krzk@kernel.org
Fixes: 02fb29882d ("soc: samsung: chipid: Drop "syscon" compatible requirement")
Cc: <stable@vger.kernel.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:27 +01:00
Arnd Bergmann
47039b55f8 Merge tag 'tee-amdtee-fix2-for-5.6' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/fixes
tee: amdtee: out of bounds read in find_session()

* tag 'tee-amdtee-fix2-for-5.6' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: amdtee: out of bounds read in find_session()

Link: https://lore.kernel.org/r/20200320063446.GA9892@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:27 +01:00
Arnd Bergmann
a88fead83e Merge tag 'oxnas-arm-soc-dt-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas into arm/fixes
- interrupt controller mask init fix to avoid spurious irq after soft reset

* tag 'oxnas-arm-soc-dt-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas:
  ARM: dts: oxnas: Fix clear-mask property

Link: https://lore.kernel.org/r/1cc83d6b-78de-9160-59bf-77cfe726a365@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:25 +01:00
Arnd Bergmann
94bb9d1858 Merge tag 'arm-soc/for-5.6/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.6, please pull the following:

- Nick fixes the missing pinctrl-names property for the Raspberry Pi
  Zero Wireless DTS

- Nicolas fixes the VC4 firmware node dma-range property which does not
  have the limitations of the soc's bus node

* tag 'arm-soc/for-5.6/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux:
  ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations
  ARM: bcm2835-rpi-zero-w: Add missing pinctrl name

Link: https://lore.kernel.org/r/20200323025246.22713-1-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:23 +01:00
Linus Walleij
9b631649c4 arm64: dts: Fix leftover entry-methods for PSCI
These two device trees were either missed or added after
the commit correcting the "entry-method" from
"arm,psci" to just "psci" as per the binding.

Link: https://lore.kernel.org/r/20200322115846.16265-1-linus.walleij@linaro.org
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Chunyan Zhang <chunyan.zhang@unisoc.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:22 +01:00
Arnd Bergmann
ae6e45986a Merge tag 'omap-for-v5.6/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Few more fixes for omaps

Just few dts fixes:

- A fix droid4 touchscreen stopping working with lost gpio interrupts

- Also limit omap5 dma range similar to what we've recently done for dra7

* tag 'omap-for-v5.6/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap5: Add bus_dma_limit for L3 bus
  ARM: dts: omap4-droid4: Fix lost touchscreen interrupts
  ARM: dts: dra7: Add bus_dma_limit for L3 bus
  ARM: dts: N900: fix onenand timings
  ARM: dts: Fix dm814x Ethernet by changing to use rgmii-id mode

Link: https://lore.kernel.org/r/pull-1584575254-461940@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:22 +01:00
Marek Szyprowski
05ff1e3fb8 ARM: dts: exynos: Fix regulator node aliasing on Midas-based boards
Commit d4ec0cb050 ("ARM: dts: exynos: Add support for the
touch-sensitive buttons on Midas family") added a new fixed regulator
("voltage-regulator-6") to base "midas" .dtsi, but it didn't update the
clients of that .dtsi, which define their own fixed regulators starting
from the "voltage-regulator-6". This results in aliasing of the regulator
dt nodes and breaks operation of OLED panel due to lack of power supply.
Fix this by increasing the numbers in the fixed regulator names for those
boards.

Link: https://lore.kernel.org/r/20200316173710.3144-1-krzk@kernel.org
Fixes: d4ec0cb050 ("ARM: dts: exynos: Add support for the touch-sensitive buttons on Midas family")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25 14:27:18 +01:00