Commit Graph

868231 Commits

Author SHA1 Message Date
Michael Roth
3a83f677a6 KVM: PPC: Book3S HV: use smp_mb() when setting/clearing host_ipi flag
On a 2-socket Power9 system with 32 cores/128 threads (SMT4) and 1TB
of memory running the following guest configs:

  guest A:
    - 224GB of memory
    - 56 VCPUs (sockets=1,cores=28,threads=2), where:
      VCPUs 0-1 are pinned to CPUs 0-3,
      VCPUs 2-3 are pinned to CPUs 4-7,
      ...
      VCPUs 54-55 are pinned to CPUs 108-111

  guest B:
    - 4GB of memory
    - 4 VCPUs (sockets=1,cores=4,threads=1)

with the following workloads (with KSM and THP enabled in all):

  guest A:
    stress --cpu 40 --io 20 --vm 20 --vm-bytes 512M

  guest B:
    stress --cpu 4 --io 4 --vm 4 --vm-bytes 512M

  host:
    stress --cpu 4 --io 4 --vm 2 --vm-bytes 256M

the below soft-lockup traces were observed after an hour or so and
persisted until the host was reset (this was found to be reliably
reproducible for this configuration, for kernels 4.15, 4.18, 5.0,
and 5.3-rc5):

  [ 1253.183290] rcu: INFO: rcu_sched self-detected stall on CPU
  [ 1253.183319] rcu:     124-....: (5250 ticks this GP) idle=10a/1/0x4000000000000002 softirq=5408/5408 fqs=1941
  [ 1256.287426] watchdog: BUG: soft lockup - CPU#105 stuck for 23s! [CPU 52/KVM:19709]
  [ 1264.075773] watchdog: BUG: soft lockup - CPU#24 stuck for 23s! [worker:19913]
  [ 1264.079769] watchdog: BUG: soft lockup - CPU#31 stuck for 23s! [worker:20331]
  [ 1264.095770] watchdog: BUG: soft lockup - CPU#45 stuck for 23s! [worker:20338]
  [ 1264.131773] watchdog: BUG: soft lockup - CPU#64 stuck for 23s! [avocado:19525]
  [ 1280.408480] watchdog: BUG: soft lockup - CPU#124 stuck for 22s! [ksmd:791]
  [ 1316.198012] rcu: INFO: rcu_sched self-detected stall on CPU
  [ 1316.198032] rcu:     124-....: (21003 ticks this GP) idle=10a/1/0x4000000000000002 softirq=5408/5408 fqs=8243
  [ 1340.411024] watchdog: BUG: soft lockup - CPU#124 stuck for 22s! [ksmd:791]
  [ 1379.212609] rcu: INFO: rcu_sched self-detected stall on CPU
  [ 1379.212629] rcu:     124-....: (36756 ticks this GP) idle=10a/1/0x4000000000000002 softirq=5408/5408 fqs=14714
  [ 1404.413615] watchdog: BUG: soft lockup - CPU#124 stuck for 22s! [ksmd:791]
  [ 1442.227095] rcu: INFO: rcu_sched self-detected stall on CPU
  [ 1442.227115] rcu:     124-....: (52509 ticks this GP) idle=10a/1/0x4000000000000002 softirq=5408/5408 fqs=21403
  [ 1455.111787] INFO: task worker:19907 blocked for more than 120 seconds.
  [ 1455.111822]       Tainted: G             L    5.3.0-rc5-mdr-vanilla+ #1
  [ 1455.111833] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 1455.111884] INFO: task worker:19908 blocked for more than 120 seconds.
  [ 1455.111905]       Tainted: G             L    5.3.0-rc5-mdr-vanilla+ #1
  [ 1455.111925] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 1455.111966] INFO: task worker:20328 blocked for more than 120 seconds.
  [ 1455.111986]       Tainted: G             L    5.3.0-rc5-mdr-vanilla+ #1
  [ 1455.111998] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 1455.112048] INFO: task worker:20330 blocked for more than 120 seconds.
  [ 1455.112068]       Tainted: G             L    5.3.0-rc5-mdr-vanilla+ #1
  [ 1455.112097] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 1455.112138] INFO: task worker:20332 blocked for more than 120 seconds.
  [ 1455.112159]       Tainted: G             L    5.3.0-rc5-mdr-vanilla+ #1
  [ 1455.112179] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 1455.112210] INFO: task worker:20333 blocked for more than 120 seconds.
  [ 1455.112231]       Tainted: G             L    5.3.0-rc5-mdr-vanilla+ #1
  [ 1455.112242] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 1455.112282] INFO: task worker:20335 blocked for more than 120 seconds.
  [ 1455.112303]       Tainted: G             L    5.3.0-rc5-mdr-vanilla+ #1
  [ 1455.112332] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 1455.112372] INFO: task worker:20336 blocked for more than 120 seconds.
  [ 1455.112392]       Tainted: G             L    5.3.0-rc5-mdr-vanilla+ #1

CPUs 45, 24, and 124 are stuck on spin locks, likely held by
CPUs 105 and 31.

CPUs 105 and 31 are stuck in smp_call_function_many(), waiting on
target CPU 42. For instance:

  # CPU 105 registers (via xmon)
  R00 = c00000000020b20c   R16 = 00007d1bcd800000
  R01 = c00000363eaa7970   R17 = 0000000000000001
  R02 = c0000000019b3a00   R18 = 000000000000006b
  R03 = 000000000000002a   R19 = 00007d537d7aecf0
  R04 = 000000000000002a   R20 = 60000000000000e0
  R05 = 000000000000002a   R21 = 0801000000000080
  R06 = c0002073fb0caa08   R22 = 0000000000000d60
  R07 = c0000000019ddd78   R23 = 0000000000000001
  R08 = 000000000000002a   R24 = c00000000147a700
  R09 = 0000000000000001   R25 = c0002073fb0ca908
  R10 = c000008ffeb4e660   R26 = 0000000000000000
  R11 = c0002073fb0ca900   R27 = c0000000019e2464
  R12 = c000000000050790   R28 = c0000000000812b0
  R13 = c000207fff623e00   R29 = c0002073fb0ca808
  R14 = 00007d1bbee00000   R30 = c0002073fb0ca800
  R15 = 00007d1bcd600000   R31 = 0000000000000800
  pc  = c00000000020b260 smp_call_function_many+0x3d0/0x460
  cfar= c00000000020b270 smp_call_function_many+0x3e0/0x460
  lr  = c00000000020b20c smp_call_function_many+0x37c/0x460
  msr = 900000010288b033   cr  = 44024824
  ctr = c000000000050790   xer = 0000000000000000   trap =  100

CPU 42 is running normally, doing VCPU work:

  # CPU 42 stack trace (via xmon)
  [link register   ] c00800001be17188 kvmppc_book3s_radix_page_fault+0x90/0x2b0 [kvm_hv]
  [c000008ed3343820] c000008ed3343850 (unreliable)
  [c000008ed33438d0] c00800001be11b6c kvmppc_book3s_hv_page_fault+0x264/0xe30 [kvm_hv]
  [c000008ed33439d0] c00800001be0d7b4 kvmppc_vcpu_run_hv+0x8dc/0xb50 [kvm_hv]
  [c000008ed3343ae0] c00800001c10891c kvmppc_vcpu_run+0x34/0x48 [kvm]
  [c000008ed3343b00] c00800001c10475c kvm_arch_vcpu_ioctl_run+0x244/0x420 [kvm]
  [c000008ed3343b90] c00800001c0f5a78 kvm_vcpu_ioctl+0x470/0x7c8 [kvm]
  [c000008ed3343d00] c000000000475450 do_vfs_ioctl+0xe0/0xc70
  [c000008ed3343db0] c0000000004760e4 ksys_ioctl+0x104/0x120
  [c000008ed3343e00] c000000000476128 sys_ioctl+0x28/0x80
  [c000008ed3343e20] c00000000000b388 system_call+0x5c/0x70
  --- Exception: c00 (System Call) at 00007d545cfd7694
  SP (7d53ff7edf50) is in userspace

It was subsequently found that ipi_message[PPC_MSG_CALL_FUNCTION]
was set for CPU 42 by at least 1 of the CPUs waiting in
smp_call_function_many(), but somehow the corresponding
call_single_queue entries were never processed by CPU 42, causing the
callers to spin in csd_lock_wait() indefinitely.

Nick Piggin suggested something similar to the following sequence as
a possible explanation (interleaving of CALL_FUNCTION/RESCHEDULE
IPI messages seems to be most common, but any mix of CALL_FUNCTION and
!CALL_FUNCTION messages could trigger it):

    CPU
      X: smp_muxed_ipi_set_message():
      X:   smp_mb()
      X:   message[RESCHEDULE] = 1
      X: doorbell_global_ipi(42):
      X:   kvmppc_set_host_ipi(42, 1)
      X:   ppc_msgsnd_sync()/smp_mb()
      X:   ppc_msgsnd() -> 42
     42: doorbell_exception(): // from CPU X
     42:   ppc_msgsync()
    105: smp_muxed_ipi_set_message():
    105:   smb_mb()
         // STORE DEFERRED DUE TO RE-ORDERING
  --105:   message[CALL_FUNCTION] = 1
  | 105: doorbell_global_ipi(42):
  | 105:   kvmppc_set_host_ipi(42, 1)
  |  42:   kvmppc_set_host_ipi(42, 0)
  |  42: smp_ipi_demux_relaxed()
  |  42: // returns to executing guest
  |      // RE-ORDERED STORE COMPLETES
  ->105:   message[CALL_FUNCTION] = 1
    105:   ppc_msgsnd_sync()/smp_mb()
    105:   ppc_msgsnd() -> 42
     42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored
    105: // hangs waiting on 42 to process messages/call_single_queue

This can be prevented with an smp_mb() at the beginning of
kvmppc_set_host_ipi(), such that stores to message[<type>] (or other
state indicated by the host_ipi flag) are ordered vs. the store to
to host_ipi.

However, doing so might still allow for the following scenario (not
yet observed):

    CPU
      X: smp_muxed_ipi_set_message():
      X:   smp_mb()
      X:   message[RESCHEDULE] = 1
      X: doorbell_global_ipi(42):
      X:   kvmppc_set_host_ipi(42, 1)
      X:   ppc_msgsnd_sync()/smp_mb()
      X:   ppc_msgsnd() -> 42
     42: doorbell_exception(): // from CPU X
     42:   ppc_msgsync()
         // STORE DEFERRED DUE TO RE-ORDERING
  -- 42:   kvmppc_set_host_ipi(42, 0)
  |  42: smp_ipi_demux_relaxed()
  | 105: smp_muxed_ipi_set_message():
  | 105:   smb_mb()
  | 105:   message[CALL_FUNCTION] = 1
  | 105: doorbell_global_ipi(42):
  | 105:   kvmppc_set_host_ipi(42, 1)
  |      // RE-ORDERED STORE COMPLETES
  -> 42:   kvmppc_set_host_ipi(42, 0)
     42: // returns to executing guest
    105:   ppc_msgsnd_sync()/smp_mb()
    105:   ppc_msgsnd() -> 42
     42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored
    105: // hangs waiting on 42 to process messages/call_single_queue

Fixing this scenario would require an smp_mb() *after* clearing
host_ipi flag in kvmppc_set_host_ipi() to order the store vs.
subsequent processing of IPI messages.

To handle both cases, this patch splits kvmppc_set_host_ipi() into
separate set/clear functions, where we execute smp_mb() prior to
setting host_ipi flag, and after clearing host_ipi flag. These
functions pair with each other to synchronize the sender and receiver
sides.

With that change in place the above workload ran for 20 hours without
triggering any lock-ups.

Fixes: 755563bc79 ("powerpc/powernv: Fixes for hypervisor doorbell handling") # v4.0
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190911223155.16045-1-mdroth@linux.vnet.ibm.com
2019-09-24 12:46:26 +10:00
Christophe Leroy
cbd18991e2 powerpc/mm: Fix an Oops in kasan_mmu_init()
Uncompressing Kernel Image ... OK
   Loading Device Tree to 01ff7000, end 01fff74f ... OK
[    0.000000] printk: bootconsole [udbg0] enabled
[    0.000000] BUG: Unable to handle kernel data access at 0xf818c000
[    0.000000] Faulting instruction address: 0xc0013c7c
[    0.000000] Thread overran stack, or stack corrupted
[    0.000000] Oops: Kernel access of bad area, sig: 11 [#1]
[    0.000000] BE PAGE_SIZE=16K PREEMPT
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.3.0-rc4-s3k-dev-00743-g5abe4a3e8fd3-dirty #2080
[    0.000000] NIP:  c0013c7c LR: c0013310 CTR: 00000000
[    0.000000] REGS: c0c5ff38 TRAP: 0300   Not tainted  (5.3.0-rc4-s3k-dev-00743-g5abe4a3e8fd3-dirty)
[    0.000000] MSR:  00001032 <ME,IR,DR,RI>  CR: 99033955  XER: 80002100
[    0.000000] DAR: f818c000 DSISR: 82000000
[    0.000000] GPR00: c0013310 c0c5fff0 c0ad6ac0 c0c600c0 f818c031 82000000 00000000 ffffffff
[    0.000000] GPR08: 00000000 f1f1f1f1 c0013c2c c0013304 99033955 00400008 00000000 07ff9598
[    0.000000] GPR16: 00000000 07ffb94c 00000000 00000000 00000000 00000000 00000000 f818cfb2
[    0.000000] GPR24: 00000000 00000000 00001000 ffffffff 00000000 c07dbf80 00000000 f818c000
[    0.000000] NIP [c0013c7c] do_page_fault+0x50/0x904
[    0.000000] LR [c0013310] handle_page_fault+0xc/0x38
[    0.000000] Call Trace:
[    0.000000] Instruction dump:
[    0.000000] be010080 91410014 553fe8fe 3d40c001 3d20f1f1 7d800026 394a3c2c 3fffe000
[    0.000000] 6129f1f1 900100c4 9181007c 91410018 <913f0000> 3d2001f4 6129f4f4 913f0004

Don't map the early shadow page read-only yet when creating the new
page tables for the real shadow memory, otherwise the memblock
allocations that immediately follows to create the real shadow pages
that are about to replace the early shadow page trigger a page fault
if they fall into the region being worked on at the moment.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: 2edb16efc8 ("powerpc/32: Add KASAN support")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/fe86886fb8db44360417cee0dc515ad47ca6ef72.1566382750.git.christophe.leroy@c-s.fr
2019-09-21 08:36:53 +10:00
Christophe Leroy
4c0f5d1eb4 powerpc/mm: Add a helper to select PAGE_KERNEL_RO or PAGE_READONLY
In a couple of places there is a need to select whether read-only
protection of shadow pages is performed with PAGE_KERNEL_RO or with
PAGE_READONLY.

Add a helper to avoid duplicating the choice.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: stable@vger.kernel.org
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9f33f44b9cd741c4a02b3dce7b8ef9438fe2cd2a.1566382750.git.christophe.leroy@c-s.fr
2019-09-21 08:36:53 +10:00
Jordan Niethe
13c7bb3c57 powerpc/64s: Set reserved PCR bits
Currently the reserved bits of the Processor Compatibility
Register (PCR) are cleared as per the Programming Note in Section
1.3.3 of version 3.0B of the Power ISA. This causes all new
architecture features to be made available when running on newer
processors with new architecture features added to the PCR as bits
must be set to disable a given feature.

For example to disable new features added as part of Version 2.07 of
the ISA the corresponding bit in the PCR needs to be set.

As new processor features generally require explicit kernel support
they should be disabled until such support is implemented. Therefore
kernels should set all unknown/reserved bits in the PCR such that any
new architecture features which the kernel does not currently know
about get disabled.

An update is planned to the ISA to clarify that the PCR is an
exception to the Programming Note on reserved bits in Section 1.3.3.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190917004605.22471-2-alistair@popple.id.au
2019-09-21 08:36:53 +10:00
Alistair Popple
c6fadabb28 powerpc: Fix definition of PCR bits to work with old binutils
Commit 388cc6e133 ("KVM: PPC: Book3S HV: Support POWER6
compatibility mode on POWER7") introduced new macros defining the PCR
bits. When used from assembly files these definitions lead to build
errors using older versions of binutils that don't support the 'ul'
suffix. This fixes the build errors by updating the definitions to use
the __MASK() macro which selects the appropriate suffix.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190917004605.22471-1-alistair@popple.id.au
2019-09-21 08:36:53 +10:00
Aneesh Kumar K.V
7aec584eaf powerpc/book3s64/radix: Remove WARN_ON in destroy_context()
On failed task initialization due to memory allocation failures, we can
call into destroy_context() with process_tb entry already populated.
This patch forces the process_tb entry to zero in destroy_context().
With this patch, we lose the ability to track if we are destroying a
context without flushing the process table entry.

  WARNING: CPU: 4 PID: 6368 at arch/powerpc/mm/mmu_context_book3s64.c:246 destroy_context+0x58/0x340
  NIP [c0000000000875f8] destroy_context+0x58/0x340
  LR [c00000000013da18] __mmdrop+0x78/0x270
  Call Trace:
  [c000000f7db77c80] [c00000000013da18] __mmdrop+0x78/0x270
  [c000000f7db77cf0] [c0000000004d6a34] __do_execve_file.isra.13+0xbd4/0x1000
  [c000000f7db77e00] [c0000000004d7428] sys_execve+0x58/0x70
  [c000000f7db77e30] [c00000000000b388] system_call+0x5c/0x70

Reported-by: Priya M.A <priyama2@in.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
[mpe: Reformat/tweak comment wording]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190918140103.24395-1-aneesh.kumar@linux.ibm.com
2019-09-21 08:36:53 +10:00
Gustavo Romero
a003365cab powerpc/tm: Add tm-poison test
Add TM selftest to check if FP or VEC register values from one process
can leak into another process when both run on the same CPU.

Signed-off-by: Gustavo Romero <gromero@linux.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190904045529.23002-3-gromero@linux.vnet.ibm.com
2019-09-21 08:36:53 +10:00
Linus Torvalds
45824fc0da powerpc updates for 5.4
- Initial support for running on a system with an Ultravisor, which is software
    that runs below the hypervisor and protects guests against some attacks by
    the hypervisor.
 
  - Support for building the kernel to run as a "Secure Virtual Machine", ie. as
    a guest capable of running on a system with an Ultravisor.
 
  - Some changes to our DMA code on bare metal, to allow devices with medium
    sized DMA masks (> 32 && < 59 bits) to use more than 2GB of DMA space.
 
  - Support for firmware assisted crash dumps on bare metal (powernv).
 
  - Two series fixing bugs in and refactoring our PCI EEH code.
 
  - A large series refactoring our exception entry code to use gas macros, both
    to make it more readable and also enable some future optimisations.
 
 As well as many cleanups and other minor features & fixups.
 
 Thanks to:
   Adam Zerella, Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Aneesh
   Kumar K.V, Anju T Sudhakar, Anshuman Khandual, Balbir Singh, Benjamin
   Herrenschmidt, Cédric Le Goater, Christophe JAILLET, Christophe Leroy,
   Christopher M. Riedl, Christoph Hellwig, Claudio Carvalho, Daniel Axtens,
   David Gibson, David Hildenbrand, Desnes A. Nunes do Rosario, Ganesh Goudar,
   Gautham R. Shenoy, Greg Kurz, Guerney Hunt, Gustavo Romero, Halil Pasic, Hari
   Bathini, Joakim Tjernlund, Jonathan Neuschafer, Jordan Niethe, Leonardo Bras,
   Lianbo Jiang, Madhavan Srinivasan, Mahesh Salgaonkar, Mahesh Salgaonkar,
   Masahiro Yamada, Maxiwell S. Garcia, Michael Anderson, Nathan Chancellor,
   Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Qian Cai, Ram
   Pai, Ravi Bangoria, Reza Arbab, Ryan Grimm, Sam Bobroff, Santosh Sivaraj,
   Segher Boessenkool, Sukadev Bhattiprolu, Thiago Bauermann, Thiago Jung
   Bauermann, Thomas Gleixner, Tom Lendacky, Vasant Hegde.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAl2EtEcTHG1wZUBlbGxl
 cm1hbi5pZC5hdQAKCRBR6+o8yOGlgPfsD/9uXyBXn3anI/H08+mk74k5gCsmMQpn
 D442CD/ByogZcccp23yBTlhawtCE03hcHnCLygn0Xgd8a4YvHts/RGHUe3fPHqlG
 bEyZ7jsLVz5ebNZQP7r4eGs2pSzCajwJy2N9HJ/C1ojf15rrfRxoVJtnyhE2wXpm
 DL+6o2K+nUCB3gTQ1Inr3DnWzoGOOUfNTOea2u+J+yfHwGRqOBYpevwqiwy5eelK
 aRjUJCqMTvrzra49MeFwjo0Nt3/Y8UNcwA+JlGdeR8bRuWhFrYmyBRiZEKPaujNO
 5EAfghBBlB0KQCqvF/tRM/c0OftHqK59AMobP9T7u9oOaBXeF/FpZX/iXjzNDPsN
 j9Oo2tKLTu/YVEXqBFuREGP+znANr1Wo4CFyOG8SbvYz0HFjR6XbtRJsS+0e8GWl
 kqX5/ZhYz3lBnKSNe9jgWOrh/J0KCSFigBTEWJT3xsn4YE8x8kK2l9KPqAIldWEP
 sKb2UjGS7v0NKq+NvShH88Q9AeQUEIjTcg/9aDDQDe6FaRQ7KiF8bUxSdwSPi+Fn
 j0lnF6i+1ATWZKuCr85veVi7C5qoe/+MqalnmP7MxULyzgXLLxUgN0SzEYO6QofK
 LQK/VaH2XVr5+M5YAb7K4/NX5gbM3s1bKrCiUy4EyHNvgG7gricYdbz6HgAjKpR7
 oP0rHfgmVYvF1g==
 =WlW+
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "This is a bit late, partly due to me travelling, and partly due to a
  power outage knocking out some of my test systems *while* I was
  travelling.

   - Initial support for running on a system with an Ultravisor, which
     is software that runs below the hypervisor and protects guests
     against some attacks by the hypervisor.

   - Support for building the kernel to run as a "Secure Virtual
     Machine", ie. as a guest capable of running on a system with an
     Ultravisor.

   - Some changes to our DMA code on bare metal, to allow devices with
     medium sized DMA masks (> 32 && < 59 bits) to use more than 2GB of
     DMA space.

   - Support for firmware assisted crash dumps on bare metal (powernv).

   - Two series fixing bugs in and refactoring our PCI EEH code.

   - A large series refactoring our exception entry code to use gas
     macros, both to make it more readable and also enable some future
     optimisations.

  As well as many cleanups and other minor features & fixups.

  Thanks to: Adam Zerella, Alexey Kardashevskiy, Alistair Popple, Andrew
  Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Anshuman Khandual,
  Balbir Singh, Benjamin Herrenschmidt, Cédric Le Goater, Christophe
  JAILLET, Christophe Leroy, Christopher M. Riedl, Christoph Hellwig,
  Claudio Carvalho, Daniel Axtens, David Gibson, David Hildenbrand,
  Desnes A. Nunes do Rosario, Ganesh Goudar, Gautham R. Shenoy, Greg
  Kurz, Guerney Hunt, Gustavo Romero, Halil Pasic, Hari Bathini, Joakim
  Tjernlund, Jonathan Neuschafer, Jordan Niethe, Leonardo Bras, Lianbo
  Jiang, Madhavan Srinivasan, Mahesh Salgaonkar, Mahesh Salgaonkar,
  Masahiro Yamada, Maxiwell S. Garcia, Michael Anderson, Nathan
  Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Oliver
  O'Halloran, Qian Cai, Ram Pai, Ravi Bangoria, Reza Arbab, Ryan Grimm,
  Sam Bobroff, Santosh Sivaraj, Segher Boessenkool, Sukadev Bhattiprolu,
  Thiago Bauermann, Thiago Jung Bauermann, Thomas Gleixner, Tom
  Lendacky, Vasant Hegde"

* tag 'powerpc-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (264 commits)
  powerpc/mm/mce: Keep irqs disabled during lockless page table walk
  powerpc: Use ftrace_graph_ret_addr() when unwinding
  powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
  ftrace: Look up the address of return_to_handler() using helpers
  powerpc: dump kernel log before carrying out fadump or kdump
  docs: powerpc: Add missing documentation reference
  powerpc/xmon: Fix output of XIVE IPI
  powerpc/xmon: Improve output of XIVE interrupts
  powerpc/mm/radix: remove useless kernel messages
  powerpc/fadump: support holes in kernel boot memory area
  powerpc/fadump: remove RMA_START and RMA_END macros
  powerpc/fadump: update documentation about option to release opalcore
  powerpc/fadump: consider f/w load area
  powerpc/opalcore: provide an option to invalidate /sys/firmware/opal/core file
  powerpc/opalcore: export /sys/firmware/opal/core for analysing opal crashes
  powerpc/fadump: update documentation about CONFIG_PRESERVE_FA_DUMP
  powerpc/fadump: add support to preserve crash data on FADUMP disabled kernel
  powerpc/fadump: improve how crashed kernel's memory is reserved
  powerpc/fadump: consider reserved ranges while releasing memory
  powerpc/fadump: make crash memory ranges array allocation generic
  ...
2019-09-20 11:48:06 -07:00
Linus Torvalds
8c2b418c3f arm64 fixes for -rc1
- Fix clang build breakage with CONFIG_OPTIMIZE_INLINING=y
 
 - Fix compilation of pointer tagging selftest
 
 - Fix COND_SYSCALL definitions to work with CFI checks
 
 - Fix stale documentation reference in our Kconfig
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl2DO5cQHHdpbGxAa2Vy
 bmVsLm9yZwAKCRC3rHDchMFjNBHhCADEoSOk8WSijBvC4WNCPXBvukuk2KEwal2s
 By+iEo3byr9uRskduddumEnTA3F5otfV7VR3HG34P8K3dzP541Zw8sPs5Q1MU/Zo
 7SzU6J14q+Q3V/+F0RDpajP60bBbmjYQi23xmO8hnnHbZlIV7dteD+JvMWrNh31M
 nTvPHpS+jm/SNFUSL1EMnbr2Au5UhN8j+9Qk1NyPgmTV9DkS4drDs4lBqp8VhvCD
 v6kC3vdW5DiXvMHoa5RXO+3B57HYVmlhylEO0ZOmKxyZEhph1jiuR2ng4CDYtxo3
 qngynXxa7u79a6TdDhnzresaku4xM22UO9bf1WkVq9yv6JQ7/ArV
 =wZPH
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "We've had a few arm64 fixes trickle in this week. Nothing catastophic,
  but all things that should be addressed:

   - Fix clang build breakage with CONFIG_OPTIMIZE_INLINING=y

   - Fix compilation of pointer tagging selftest

   - Fix COND_SYSCALL definitions to work with CFI checks

   - Fix stale documentation reference in our Kconfig"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Fix reference to docs for ARM64_TAGGED_ADDR_ABI
  arm64: fix function types in COND_SYSCALL
  selftests, arm64: add kernel headers path for tags_test
  arm64: fix unreachable code issue with cmpxchg
2019-09-20 11:42:07 -07:00
Linus Torvalds
bb736a5c0e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel
Pull Hexagon maintainership update from Richard Kuo:
 "I am leaving QuIC, and Brian Cain will be taking over maintainership
  of the Hexagon port"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel:
  Hexagon: change maintainer to Brian Cain
2019-09-20 11:28:43 -07:00
Linus Torvalds
45979a956b Tracing updates:
- Addition of multiprobes to kprobe and uprobe events
    Allows for more than one probe attached to the same location
 
  - Addition of adding immediates to probe parameters
 
  - Clean up of the recordmcount.c code. This brings us closer
    to merging recordmcount into objtool, and reuse code.
 
  - Other small clean ups
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCXYQoqhQccm9zdGVkdEBn
 b29kbWlzLm9yZwAKCRAp5XQQmuv6qlIxAP9VVABbpuvOYqxKuFgyP62ituSXPLkL
 gZv4I5Zse4b6/gD/eksFXY/OHo7jp6aQiHvxotUkAiFFE9iHzi0JscdMJgo=
 =WqrT
 -----END PGP SIGNATURE-----

Merge tag 'trace-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:

 - Addition of multiprobes to kprobe and uprobe events (allows for more
   than one probe attached to the same location)

 - Addition of adding immediates to probe parameters

 - Clean up of the recordmcount.c code. This brings us closer to merging
   recordmcount into objtool, and reuse code.

 - Other small clean ups

* tag 'trace-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits)
  selftests/ftrace: Update kprobe event error testcase
  tracing/probe: Reject exactly same probe event
  tracing/probe: Fix to allow user to enable events on unloaded modules
  selftests/ftrace: Select an existing function in kprobe_eventname test
  tracing/kprobe: Fix NULL pointer access in trace_porbe_unlink()
  tracing: Make sure variable reference alias has correct var_ref_idx
  tracing: Be more clever when dumping hex in __print_hex()
  ftrace: Simplify ftrace hash lookup code in clear_func_from_hash()
  tracing: Add "gfp_t" support in synthetic_events
  tracing: Rename tracing_reset() to tracing_reset_cpu()
  tracing: Document the stack trace algorithm in the comments
  tracing/arm64: Have max stack tracer handle the case of return address after data
  recordmcount: Clarify what cleanup() does
  recordmcount: Remove redundant cleanup() calls
  recordmcount: Kernel style formatting
  recordmcount: Kernel style function signature formatting
  recordmcount: Rewrite error/success handling
  selftests/ftrace: Add syntax error test for multiprobe
  selftests/ftrace: Add syntax error test for immediates
  selftests/ftrace: Add a testcase for kprobe multiprobe event
  ...
2019-09-20 11:19:48 -07:00
Linus Torvalds
3207598ab0 kgdb patches for 5.4-rc1
It has been a quiet dev cycle for kgdb. There has been some good stuff
 for kdb on the mailing list but unfortunately the patches caused a
 couple of problems with the kdb pager so I had to drop those and they
 will have to wait for next time!
 
 That just leaves us with just a couple of very tiny clean ups for now:
 
  * Fix a broken comment
  * Use str_has_prefix() for the grep "pipe" in kdb
 
 Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEELzVBU1D3lWq6cKzwfOMlXTn3iKEFAl2Do/AACgkQfOMlXTn3
 iKF8Lw//cpxBlzZlBpkWDS7Uiuvsrzy8M7vZndYNsrnY89kjYOm0JynIT+8CZFXk
 tLKWyL3OZxUTWUvouTSeqyJAbLJYOB3wBPCMy7aVg7UAaoeEvRzN/xipM21sa4Hm
 1eVP51EMuNTaLzn4jgZV5Ad+ruSnj8Ua3TxK5qc2wYIuJvULnVzsSQxKcQopn2tk
 LqIEwo0wvPVkb865z3D0KAOxqkftJHa4RdwNAyDy6xCQH/RlHR06NshKEN1g3j0I
 0yKd/LBW7Z5yBMFpf1EOv3euF0URu9cmDP4o+n5Tyx71UbZ++NqiPFAAV2zWZq42
 3sCjgLgPm+JIT4aMFEFlJn05xAwJEs3bpglGf1BTN2lFyIZZKD+lBpaAIA7AJtfi
 oc/pJtmy9qAaACVe+l6s4q9YDZjcz9YZ1KZJuAUaVSc/L7AaZRC64CmzoLealZ1x
 bKHvJ0FEKbwVC/JSF7ILKsb0qzyiQFAjuNfnqAX0KKrxOC42IukQy90eDC5JeWhd
 yYAaUjtjeIKVn6wZYyki8dwmK2LPlAbathAQxNDYdYLyteTOeTyuZS7X8V0aLMDN
 VfbOylp9SasZX80vHjhI+gZv523ljDj/Ec0o1kHaswpAELU+oVbdp91vuSvi4lPn
 MmrNS2o3QZMlGMvLupSqmp+nQHZFmhoTWbxa84gYptPxwk2vipI=
 =oIVA
 -----END PGP SIGNATURE-----

Merge tag 'kgdb-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

Pull kgdb updates from Daniel Thompson:
 "It has been a quiet dev cycle for kgdb. There has been some good stuff
  for kdb on the mailing list but unfortunately the patches caused a
  couple of problems with the kdb pager so I had to drop those and they
  will have to wait for next time!

  That just leaves us with just a couple of very tiny clean ups for now:

   - Fix a broken comment

   - Use str_has_prefix() for the grep "pipe" in kdb"

* tag 'kgdb-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
  kgdb: fix comment regarding static function
  kdb: Replace strncmp with str_has_prefix
2019-09-20 10:31:19 -07:00
Linus Torvalds
b08918fb3f lz4: do not export static symbol
Kbuild now complains (rightly) about it.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-20 09:06:26 -07:00
Linus Torvalds
d7b0827f28 Kbuild updates for v5.4
- add modpost warn exported symbols marked as 'static' because 'static'
    and EXPORT_SYMBOL is an odd combination
 
  - break the build early if gold linker is used
 
  - optimize the Bison rule to produce .c and .h files by a single
    pattern rule
 
  - handle PREEMPT_RT in the module vermagic and UTS_VERSION
 
  - warn CONFIG options leaked to the user-space except existing ones
 
  - make single targets work properly
 
  - rebuild modules when module linker scripts are updated
 
  - split the module final link stage into scripts/Makefile.modfinal
 
  - fix the missed error code in merge_config.sh
 
  - improve the error message displayed on the attempt of the O= build
    in unclean source tree
 
  - remove 'clean-dirs' syntax
 
  - disable -Wimplicit-fallthrough warning for Clang
 
  - add CONFIG_CC_OPTIMIZE_FOR_SIZE_O3 for ARC
 
  - remove ARCH_{CPP,A,C}FLAGS variables
 
  - add $(BASH) to run bash scripts
 
  - change *CFLAGS_<basetarget>.o to take the relative path to $(obj)
    instead of the basename
 
  - stop suppressing Clang's -Wunused-function warnings when W=1
 
  - fix linux/export.h to avoid genksyms calculating CRC of trimmed
    exported symbols
 
  - misc cleanups
 -----BEGIN PGP SIGNATURE-----
 
 iQJSBAABCgA8FiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl1+OnoeHHlhbWFkYS5t
 YXNhaGlyb0Bzb2Npb25leHQuY29tAAoJED2LAQed4NsGoKEQAKcid9lDacMe5KWT
 4Ic93hANMFKZ9Qy8WoxivnOr1a93NcloZ0Bhka96QUt7hYUkLmDCs99eMbxKuMfP
 m/ViHepojOBPzq+VtAGWOiIyPMCA7XDrTPph4wcPDKeOURTreK1PZ20fxDoAR4to
 +qaqKZJGdRcNf2DpJN1yIosz8Wj0Sa2LQrRi9jgUHi3bzgvLfL7P9WM2xyZMggAc
 GaSktCEFL0UzMFlMpYyDrKh2EV6ryOnN8+bVAKbmWP89tuU3njutycKdWOoL+bsj
 tH2kjFThxQyIcZGNHS1VzNunYAFE2q5nj2q47O1EDN6sjTYUoRn5cHwPam6x3Kly
 NH88xDEtJ7sUUc9GZEIXADWWD0f08QIhAH5x+jxFg3529lNgyrNHRSQ2XceYNAnG
 i/GnMJ0EhODOFKusXw7sNlWFKtukep+8/pwnvfTXWQu6plEm5EQ3a3RL5SESubVo
 mHzXsQDFCE0x/UrsJxEAww+3YO3pQEelfVi74W9z0cckpbRF8FuUq/69ltOT15l4
 X+gCz80lXMWBKw/kNoR4GQoAJo3KboMEociawwoj72HXEHTPLJnCdUOsAf3n+opj
 xuz/UPZ4WYSgKdnbmmDbJ+1POA1NqtARZZXpMVyKVVCOiLafbJkLQYwLKEpE2mOO
 TP9igzP1i3/jPWec8cJ6Fa8UwuGh
 =VGqV
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - add modpost warn exported symbols marked as 'static' because 'static'
   and EXPORT_SYMBOL is an odd combination

 - break the build early if gold linker is used

 - optimize the Bison rule to produce .c and .h files by a single
   pattern rule

 - handle PREEMPT_RT in the module vermagic and UTS_VERSION

 - warn CONFIG options leaked to the user-space except existing ones

 - make single targets work properly

 - rebuild modules when module linker scripts are updated

 - split the module final link stage into scripts/Makefile.modfinal

 - fix the missed error code in merge_config.sh

 - improve the error message displayed on the attempt of the O= build in
   unclean source tree

 - remove 'clean-dirs' syntax

 - disable -Wimplicit-fallthrough warning for Clang

 - add CONFIG_CC_OPTIMIZE_FOR_SIZE_O3 for ARC

 - remove ARCH_{CPP,A,C}FLAGS variables

 - add $(BASH) to run bash scripts

 - change *CFLAGS_<basetarget>.o to take the relative path to $(obj)
   instead of the basename

 - stop suppressing Clang's -Wunused-function warnings when W=1

 - fix linux/export.h to avoid genksyms calculating CRC of trimmed
   exported symbols

 - misc cleanups

* tag 'kbuild-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (63 commits)
  genksyms: convert to SPDX License Identifier for lex.l and parse.y
  modpost: use __section in the output to *.mod.c
  modpost: use MODULE_INFO() for __module_depends
  export.h, genksyms: do not make genksyms calculate CRC of trimmed symbols
  export.h: remove defined(__KERNEL__), which is no longer needed
  kbuild: allow Clang to find unused static inline functions for W=1 build
  kbuild: rename KBUILD_ENABLE_EXTRA_GCC_CHECKS to KBUILD_EXTRA_WARN
  kbuild: refactor scripts/Makefile.extrawarn
  merge_config.sh: ignore unwanted grep errors
  kbuild: change *FLAGS_<basetarget>.o to take the path relative to $(obj)
  modpost: add NOFAIL to strndup
  modpost: add guid_t type definition
  kbuild: add $(BASH) to run scripts with bash-extension
  kbuild: remove ARCH_{CPP,A,C}FLAGS
  kbuild,arc: add CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 for ARC
  kbuild: Do not enable -Wimplicit-fallthrough for clang for now
  kbuild: clean up subdir-ymn calculation in Makefile.clean
  kbuild: remove unneeded '+' marker from cmd_clean
  kbuild: remove clean-dirs syntax
  kbuild: check clean srctree even earlier
  ...
2019-09-20 08:36:47 -07:00
Linus Torvalds
574cc45397 drm main pull for 5.4-rc1
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJdgfi4AAoJEAx081l5xIa+uYQP/3lbB75F60oSb0Y17uOtAwrS
 /ZMKZ3/EXcCw42JuYTbz17EiQSajkJcOC+tNRo22nlg4d9R0x3/kXwA7O/eu5RWI
 8Qi1rfrMZ6LotQXBfc4nVlHvyocsYc/GVNfsCboUCLwU/aNwnrufS9jeEsvWd2Vt
 iIn/okeQ7mTyB/3Dm4RFIAexE21+d5is6YTs45xUnDLhWzXYLU7VnHt5S5kXurEI
 cmVA7C1EAqV+GAwkeFWFx/jBpBRKqvTPa8EpOu7cQL01x7KwU2cQeNdOyBF6Uf8a
 cNKFI7jZZmu/mFp+YqU33ZIZxbLELm5PN1sz4ZvoIT8BJAQf1VmZg+GG87AvQCUz
 zbWKrbHGVy/c+sohUmvCOQvmzca/7rZutFyaCOx2mEdrheRZMWQI/w2C03VfkNFS
 vPpXrKXaWbVezHwF6x9PemRxvOPvLkeKAgSVuAfK0DhT5kEldqdzFzI7UO9MYfyX
 j+HOUIRP/pseshUV6YbnAe9MS3T4zb5P+Qd1zRTGgo8R9/l1AmVHyrkbH1hGNjY0
 mECHucCOh/VsyPAdg1XADJHqMg9081prySK8hNV6oazwSHdC38GdajuOmdyO3azQ
 OpJZDQd0eP4fHPMU6F5HSzLOO/wYuAie8gWVSZ3ylDxDPIKfqcjVo+4bxJ8sbmpI
 akj6BoMX7we0fjhlbdit
 =5CRH
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This is the main pull request for 5.4-rc1 merge window. I don't think
  there is anything outstanding so next week should just be fixes, but
  we'll see if I missed anything. I landed some fixes earlier in the
  week but got delayed writing summary and sending it out, due to a mix
  of sick kid and jetlag!

  There are some fixes pending, but I'd rather get the main merge out of
  the way instead of delaying it longer.

  It's also pretty large in commit count and new amd header file size.
  The largest thing is four new amdgpu products (navi12/14, arcturus and
  renoir APU support).

  Otherwise it's pretty much lots of work across the board, i915 has
  started landing tigerlake support, lots of icelake fixes and lots of
  locking reworking for future gpu support, lots of header file rework
  (drmP.h is nearly gone), some old legacy hacks (DRM_WAIT_ON) have been
  put into the places they are needed.

  uapi:
   - content protection type property for HDCP

  core:
   - rework include dependencies
   - lots of drmP.h removals
   - link rate calculation robustness fix
   - make fb helper map only when required
   - add connector->DDC adapter link
   - DRM_WAIT_ON removed
   - drop DRM_AUTH usage from drivers

  dma-buf:
   - reservation object fence helper

  dma-fence:
   - shrink dma_fence struct
   - merge signal functions
   - store timestamps in dma_fence
   - selftests

  ttm:
   - embed drm_get_object struct into ttm_buffer_object
   - release_notify callback

  bridges:
   - sii902x - audio graph card support
   - tc358767 - aux data handling rework
   - ti-snd64dsi86 - debugfs support, DSI mode flags support

  panels:
   - Support for GiantPlus GPM940B0, Sharp LQ070Y3DG3B, Ortustech
     COM37H3M, Novatek NT39016, Sharp LS020B1DD01D, Raydium RM67191, Boe
     Himax8279d, Sharp LD-D5116Z01B
   - TI nspire, NEC NL8048HL11, LG Philips LB035Q02, Sharp LS037V7DW01,
     Sony ACX565AKM, Toppoly TD028TTEC1 Toppoly TD043MTEA1

  i915:
   - Initial tigerlake platform support
   - Locking simplification work, general all over refactoring.
   - Selftests
   - HDCP debug info improvements
   - DSI properties
   - Icelake display PLL fixes, colorspace fixes, bandwidth fixes, DSI
     suspend/resume
   - GuC fixes
   - Perf fixes
   - ElkhartLake enablement
   - DP MST fixes
   - GVT - command parser enhancements

  amdgpu:
   - add wipe memory on release flag for buffer creation
   - Navi12/14 support (may be marked experimental)
   - Arcturus support
   - Renoir APU support
   - mclk DPM for Navi
   - DC display fixes
   - Raven scatter/gather support
   - RAS support for GFX
   - Navi12 + Arcturus power features
   - GPU reset for Picasso
   - smu11 i2c controller support

  amdkfd:
   - navi12/14 support
   - Arcturus support

  radeon:
   - kexec fix

  nouveau:
   - improved display color management
   - detect lack of GPU power cables

  vmwgfx:
   - evicition priority support
   - remove unused security feature

  msm:
   - msm8998 display support
   - better async commit support for cursor updates

  etnaviv:
   - per-process address space support
   - performance counter fixes
   - softpin support

  mcde:
   - DCS transfers fix

  exynos:
   - drmP.h cleanup

  lima:
   - reduce logging

  kirin:
   - misc clenaups

  komeda:
   - dual-link support
   - DT memory regions

  hisilicon:
   - misc fixes

  imx:
   - IPUv3 image converter fixes
   - 32-bit RGB V4L2 pixel format support

  ingenic:
   - more support for panel related cases

  mgag200:
   - cursor support fix

  panfrost:
   - export GPU features register to userspace
   - gpu heap allocations
   - per-fd address space support

  pl111:
   - CLD pads wiring support removed from DT

  rockchip:
   - rework to use DRM PSR helpers
   - fix bug in VOP_WIN_GET macro
   - DSI DT binding rework

  sun4i:
   - improve support for color encoding and range
   - DDC enabled GPIO

  tinydrm:
   - rework SPI support
   - improve MIPI-DBI support
   - moved to drm/tiny

  vkms:
   - rework CRC tracking

  dw-hdmi:
   - get_eld and i2s improvements

  gm12u320:
   - misc fixes

  meson:
   - global code cleanup
   - vpu feature detect

  omap:
   - alpha/pixel blend mode properties

  rcar-du:
   - misc fixes"

* tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm: (2112 commits)
  drm/nouveau/bar/gm20b: Avoid BAR1 teardown during init
  drm/nouveau: Fix ordering between TTM and GEM release
  drm/nouveau/prime: Extend DMA reservation object lock
  drm/nouveau: Fix fallout from reservation object rework
  drm/nouveau/kms/nv50-: Don't create MSTMs for eDP connectors
  drm/i915: Use NOEVICT for first pass on attemping to pin a GGTT mmap
  drm/i915: to make vgpu ppgtt notificaiton as atomic operation
  drm/i915: Flush the existing fence before GGTT read/write
  drm/i915: Hold irq-off for the entire fake lock period
  drm/i915/gvt: update RING_START reg of vGPU when the context is submitted to i915
  drm/i915/gvt: update vgpu workload head pointer correctly
  drm/mcde: Fix DSI transfers
  drm/msm: Use the correct dma_sync calls harder
  drm/msm: remove unlikely() from WARN_ON() conditions
  drm/msm/dsi: Fix return value check for clk_get_parent
  drm/msm: add atomic traces
  drm/msm/dpu: async commit support
  drm/msm: async commit support
  drm/msm: split power control from prepare/complete_commit
  drm/msm: add kms->flush_commit()
  ...
2019-09-19 16:24:24 -07:00
Linus Torvalds
3c2edc36a7 This is the bulk of pin control changes for the v5.4 kernel
cycle:
 
 Core changes:
 
 - Fix errors in example code in the documentation.
 
 New drivers:
 
 - Add support for JZ4760, JZ4760B, X1000, X1000E and X1500 to
   the Ingenic driver.
 
 - Support Cirrus Logic Madera CS47L92 and CS47L15.
 
 - Support Allwinner Sunxi V3S.
 
 - Support Aspeed 2600 BMC.
 
 - Support Qualcomm SC7180.
 
 - Support Marvell MVEBU CS115.
 
 Driver improvements:
 
 - Clean up a few drivers to use the devm_platform_ioremap_resource()
   helper.
 
 - Pass the irqchip when registering the gpio_chip in some pin
   controllers that are also GPIO controllers.
 
 - Support suspend/resume in the Tegra driver.
 
 - Support pull-up on the Broadcom BCM2711.
 
 - The Intel driver can now request locked pads.
 
 - Fix the UFS reset pin in the Qualcomm SDM845 driver.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl2D6y0ACgkQQRCzN7AZ
 XXNAfw//Zh0zkrwVSiDU7xgjIgLpngkmPeDoFZoPW5Uqh6G3KlabkE0y7CXZT2kd
 hZU0v8CW/947t2zxNev6nNUPumfaTJsj5btVAvF8+QE2lnnbs3Id2mPVPK/mMUs+
 bOVFkMMFvGzsY2TaKiJSgOiTe8LoUUl2tJ25mFRBwgtPWYJh2NLVwbzScv+KTBX2
 Yy1UhltfWaobyPGgJucZn2yDbkZQeDLyKaExsL9jKBO9rAf8iwSOwkxEz5hLGRri
 ejubLV2C5WDcAYIMO2WscFm/0Cxv8ooWBlGTG3+v3P1eaB7l7rYkGpVkoRJpS7gr
 Qzf0z1PjVudCcwomkf7ZXJFVHCEkWe86oT4plII9TiZ0b5YpwxYA3Rzakrpb3K7E
 gxCuMR1PQK9/2VcqtnXjV2N40KJNRhsAGx47YK3mZxFQun8ksLDTSwKCEPvQ5GT6
 3CSYtqVkqgpRaj1MIe+QrFE5Y2bNPjYqXF8kqh5hz/2FWZErbaRuPuKscYh7x0Z4
 wY157HEYTlSnSs3nHFtPO3qeXt0i2MNOKVpIlyKzUnafPoyxcnqaB/ZMt5Dp3ygX
 NJI3xqULdSzXRpjj/oChCKzuNd9CmxO6yWMIK32f4Gdc3T1wmpBlOTIrHKUA5aZf
 KN38L/8iGnzvOKC57552eFpTXaF4Plh2y7e0xQkq4eshhHpz8H8=
 =2nNz
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v5.4 kernel cycle:

  Core changes:

   - Fix errors in example code in the documentation.

  New drivers:

   - Add support for JZ4760, JZ4760B, X1000, X1000E and X1500 to the
     Ingenic driver.

   - Support Cirrus Logic Madera CS47L92 and CS47L15.

   - Support Allwinner Sunxi V3S.

   - Support Aspeed 2600 BMC.

   - Support Qualcomm SC7180.

   - Support Marvell MVEBU CS115.

  Driver improvements:

   - Clean up a few drivers to use the devm_platform_ioremap_resource()
     helper.

   - Pass the irqchip when registering the gpio_chip in some pin
     controllers that are also GPIO controllers.

   - Support suspend/resume in the Tegra driver.

   - Support pull-up on the Broadcom BCM2711.

   - The Intel driver can now request locked pads.

   - Fix the UFS reset pin in the Qualcomm SDM845 driver"

* tag 'pinctrl-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (112 commits)
  pinctrl: meson-gxbb: Fix wrong pinning definition for uart_c
  pinctrl: sh-pfc: Unlock on error in sh_pfc_func_set_mux()
  pinctrl: bcm: remove redundant assignment to pointer log
  pinctrl: iproc: Add 'get_direction' support
  pinctrl: iproc-gpio: Handle interrupts for multiple instances
  pinctrl: iproc-gpio: Fix incorrect pinconf configurations
  pinctrl: intel: mark intel_pin_to_gpio __maybe_unused
  pinctrl: qcom: sdm845: Fix UFS_RESET pin
  pinctrl: mvebu: add additional variant for standalone CP115
  pinctrl: mvebu: Add CP110 missing pin functionality
  dt-bindings: cp110: document the new CP115 pinctrl compatible
  pinctrl: bcm2835: Pass irqchip when adding gpiochip
  pinctrl: meson: meson: Add of_node_put() before return
  pinctrl/gpio: Take MUX usage into account
  dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150l support
  dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150b support
  dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150 support
  pinctrl: amd: disable spurious-firing GPIO IRQs
  pinctrl: rza2: Include the appropriate headers
  pinctrl: rza2: Drop driver use of consumer flags
  ...
2019-09-19 14:19:33 -07:00
Linus Torvalds
32b90daf5c chrome platform changes for v5.4
* CrOS EC / MFD Migration
  - Move cros_ec core driver from mfd into chrome platform.
 
 * Wilco EC:
  - Add batt_ppid_info command to Wilco telemetry driver.
 
 * CrOS EC:
  - cros_ec_rpmsg : Add support to inform EC of suspend/resume status
  - cros_ec_rpmsg : Fix race condition on probe failed
  - cros_ec_chardev : Add a poll handler to receive MKBP events
 
 * Misc:
  - bugfixes in cros_usbpd_logger and cros_ec_ishtp
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQQCtZK6p/AktxXfkOlzbaomhzOwwgUCXYKpygAKCRBzbaomhzOw
 wlkXAP9QCKia7LiNujIl9kh7WXSloxdO0BzL93pgSpNHfUDeSAD+Mlcp+54bDqkB
 WaF2SR14Z2vzAFafroQTl6m41xJTog4=
 =slD7
 -----END PGP SIGNATURE-----

Merge tag 'tag-chrome-platform-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:
 "CrOS EC / MFD Migration:
    - Move cros_ec core driver from mfd into chrome platform.

  Wilco EC:
    - Add batt_ppid_info command to Wilco telemetry driver.

  CrOS EC:
    - cros_ec_rpmsg : Add support to inform EC of suspend/resume status
    - cros_ec_rpmsg : Fix race condition on probe failed
    - cros_ec_chardev : Add a poll handler to receive MKBP events

  Misc:
    - bugfixes in cros_usbpd_logger and cros_ec_ishtp"

* tag 'tag-chrome-platform-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_usbpd_logger: null check create_singlethread_workqueue
  platform/chrome: cros_ec_chardev: Add a poll handler to receive MKBP events
  platform/chrome: cros_ec_rpmsg: Fix race with host command when probe failed
  platform/chrome: chromeos_tbmc: Report wake events
  mfd: cros_ec: Use mfd_add_hotplug_devices() helper
  mfd: cros_ec: Add convenience struct to define autodetectable CrOS EC subdevices
  mfd: cros_ec: Add convenience struct to define dedicated CrOS EC MCUs
  mfd: cros_ec: Use kzalloc and cros_ec_cmd_xfer_status helper
  mfd / platform: cros_ec: Reorganize platform and mfd includes
  mfd / platform: cros_ec: Rename config to a better name
  mfd: cros_ec: Switch to use the new cros-ec-chardev driver
  mfd / platform: cros_ec: Miscellaneous character device to talk with the EC
  mfd / platform: cros_ec: Move cros-ec core driver out from MFD
  mfd / platform: cros_ec: Handle chained ECs as platform devices
  platform/chrome: cros_ec_rpmsg: Add host command AP sleep state support
  platform/chrome: chromeos_laptop: drop checks of NULL-safe functions
  platform/chrome: wilco_ec: Add batt_ppid_info command to telemetry driver
2019-09-19 14:14:28 -07:00
Linus Torvalds
c6cfaf4f86 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - input core allows hardware drivers to specify a [more precise]
   timestamp (normally taken in top half) to better track velocity of
   contacts

 - input_dev instances now support "polling" mode so that drivers could
   use the same object for polled and interrupt-driven operation. The
   plan is to convert existing drivers and retire input_polled_dev API

 - a new driver for the FlySky FS-iA6B RC receiver

 - a refresh of BU21013 touchpad driver

 - w90x900 keyboard and touchpad drivers are removed as the platform is
   gone

 - assorted fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
  Input: sidewinder - make array seq static const, makes object smaller
  Input: reset device timestamp on sync
  Input: bu21013_ts - switch to using standard touchscreen properties
  Input: bu21013_ts - switch to using MT-B (slotted) protocol
  Input: bu21013_ts - fix suspend when wake source
  Input: bu21013_ts - use interrupt from I2C client
  Input: bu21013_ts - remove support for platform data
  Input: bu21013_ts - convert to using managed resources
  Input: bu21013_ts - remove useless comments
  Input: bu21013_ts - annotate supend/resume methods as __maybe_unused
  Input: bu21013_ts - rename some variables
  Input: bu21013_ts - convert to use GPIO descriptors
  ARM: ux500: improve BU21013 touchpad bindings
  Input: i8042 - enable wakeup on a stable struct device
  Input: soc_button_array - use platform_device_register_resndata()
  Input: psmouse - drop all unneeded functions from mouse headers
  Input: add support for polling to input devices
  Input: wacom_w8001 - allocate additional space for 'phys'
  Input: cros_ec_keyb - add back missing mask for event_type
  Input: remove dev_err() usage after platform_get_irq()
  ...
2019-09-19 14:10:54 -07:00
Linus Torvalds
a9f8b38a07 IPMI: A few minor fixes and some cosmetic changes.
Nothing big here, but some minor things that people have found and
 some minor reworks for names and include files.
 
 Thanks,
 
 -corey
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE/Q1c5nzg9ZpmiCaGYfOMkJGb/4EFAl2Dp3wACgkQYfOMkJGb
 /4HKIA/+N0zGXn4Hgp7FJPobpZvlUCswHGUUmk7+Wibf8qXqObClvDLsu4nsblbX
 n8tmAVV8OzjZvyx1L49Lan8yBB4rtMg1Y4+WC8hWi2j6eB1JY2jNjHKIRIVFZMIX
 z2uHGIRxyL/vPbyDkUFLQxmxqjuGzQHivkGyaPopI/Z7N+LCZMhfTiUHt1lJkxcj
 Uka+XgVNfe1OOkBSeVQcIzwppQH83i2j6NL0BrZ3Cu9vTMJTqiP8TRrgendxGyxb
 Tk/zTrE9Ct7tz3pD2/nqtyo5xAL4uLPoxJmM916ucYvS5nkUfYDhuJxWDrcjWsZe
 jV2/knCNIJn90aIFNs/lQOKb+OzeitGz7IdlHzJyi/cU7VhcpsrxfBTADR6ydTMk
 bmr1vvPOhN0PekSH6r9ly5FECTOWIEhoy6XWpoDGYtWvHj5OEtk4vDdJYE4aw5cd
 tZMM+x7x3P427rb7Dna0MgyFuAipJhQMzr+AzWEOGNQw505iZP5/C1UbkUFE6lWJ
 nr3tBVr6ZkJdTaO/aY2bA02loDJyEL5m8W/XaU2PSlKZkGZk1pLiOiB1v88upSpz
 ZpJ5w+ItjqZFRnVaRxTjPUwaieAm6iswXUvXCpKUPfnOSKAkPpAFDIsEpmNIUtfD
 slvFfztFFS7o1VrguTIqIgZ6p4xJETNrlZqNhr7In/Z3p5jg13Y=
 =5uQL
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.4-1' of git://github.com/cminyard/linux-ipmi

Pull IPMI updates from Corey Minyard:
 "A few minor fixes and some cosmetic changes.

  Nothing big here, but some minor things that people have found and
  some minor reworks for names and include files"

* tag 'for-linus-5.4-1' of git://github.com/cminyard/linux-ipmi:
  ipmi_si_intf: Fix race in timer shutdown handling
  ipmi: move message error checking to avoid deadlock
  ipmi_ssif: avoid registering duplicate ssif interface
  ipmi: Free receive messages when in an oops
  ipmi_si: Only schedule continuously in the thread in maintenance mode
  ipmi_si: Remove ipmi_ from the device attr names
  ipmi_si: Convert device attr permissions to octal
  ipmi_si: Rework some include files
  ipmi_si: Convert timespec64 to timespec
2019-09-19 14:08:45 -07:00
Linus Torvalds
b682242f60 - qcom : enable support for ipq8074, sm1850 and sm7180.
add child device node for qcs404.
          misc fixes.
 
 - mediatek : enable support for mt8183.
           misc rejig of cmdq driver.
           new client-reg dt property.
 
 - armada: use device-managed registration api
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE6EwehDt/SOnwFyTyf9lkf8eYP5UFAl2CUw8ACgkQf9lkf8eY
 P5XWdQ/+JMGoG8nbTkFdvgnRXvxdtZLylOTotnEpYtIOQ6qAckkOc0rGih3qXXRq
 5FUCynImnx0Pqjso8ny8xSqfGy2B1f87tg+GD2r38XjLPo+5gJMkd5aCZ4JtEKZQ
 ms+23pPXCLhh6bej6WW3fmuwk8T3USWfGGhRFQOHN9e152dThXt3vvLo40vy/GD5
 xT2qChONXmyPrG1F3qJhGcHuiubBzZ2mxfEC294PyVwWKdaJ5StlBmSQpomJsJP3
 v04SNI8P/gMtNhFfIVks9Hj1eu2PlO7p+4DpyhBDQii5Dzv+bSnJHIJch6DOYdou
 h1aezWGHdJ5IcJTZcKVq0a8wyCoOGFU6znQQKRDtIdpgoDfGVmIe2bheFB4ePXOQ
 XI9gsNGBrgS4uA5lJKJyJrAokXpTCiwA69c7UULRPKa0jbmVwbrJxxbLYL4k5euC
 Qi6r3qPxvJ+3kYzegqtzHRYx9s+3Bt0CkHG8hv/XtETzM2Jg7TXy9yEF6d53jFAx
 f0eU7PWdfM8TbQYGQ67BRYtSITaL8TgVafby5S1T9jLA5QnCAf4/TMCtJjxvCOVp
 hMBm9JCnQ2U9c8geGkcU51Oz78sdTByE+q0Rzw6C9jFQxECRiSC/a7tvI7Pkui4y
 w9UpCJNfypGHi+WT/UuCePi2JlnPRVCquKR2TEb8BZQKTEV4owk=
 =V6QY
 -----END PGP SIGNATURE-----

Merge tag 'mailbox-v5.4' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:

 - qcom:
     - enable support for ipq8074, sm1850 and sm7180
     - add child device node for qcs404
     - misc fixes

 - mediatek:
     - enable support for mt8183
     - misc rejig of cmdq driver
     - new client-reg dt property

 - armada:
     - use device-managed registration api

* tag 'mailbox-v5.4' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: qcom-apcs: fix max_register value
  mailbox: qcom: Add support for IPQ8074 APCS
  dt-bindings: mailbox: qom: Add ipq8074 APPS compatible
  mailbox: qcom: Add support for Qualcomm SM8150 and SC7180 SoCs
  dt-bindings: mailbox: Add APSS shared for SM8150 and SC7180 SoCs
  mbox: qcom: replace integer with valid macro
  mbox: qcom: add APCS child device for QCS404
  mailbox: mediatek: cmdq: clear the event in cmdq initial flow
  mailbox: mediatek: cmdq: support mt8183 gce function
  mailbox: mediatek: cmdq: move the CMDQ_IRQ_MASK into cmdq driver data
  dt-binding: gce: add binding for gce client reg property
  dt-binding: gce: add gce header file for mt8183
  dt-binding: gce: remove thread-num property
  mailbox: armada-37xx-rwtm: Use device-managed registration API
2019-09-19 14:01:47 -07:00
Linus Torvalds
e3a008ac12 Devicetree updates for v5.4:
- A bunch of DT binding conversions to DT schema format
 
 - Clean-ups of the Arm idle-states binding
 
 - Support a default number of cells in of_for_each_phandle() when the
   cells name is missing
 
 - Expose dtbs_check and dt_binding_check in the make help
 
 - Convert writting-schema.md to ReST
 
 - HiSilicon reset controller binding updates
 
 - Add documentation for MT8516 RNG
 -----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCgAuFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAl2Dj38QHHJvYmhAa2Vy
 bmVsLm9yZwAKCRD6+121jbxhw4qcEACE16/eR0h9FSnhN0QpyFlGrfUTy86K5Z4N
 IoJsGind4G7+TrNA6GGZwQkNRt3roWdrkqnLLvcted+8IVaXOFm0n12w2u0yoYvk
 C4pqxH2HRUC9U9eBjyDxdiplH9yYZPuy8bFwLPSQk0bkCd6D3I8iDe6qHm1arin3
 sYIQ03jbZKowHixOuMNvu9rBiun79Lm5FfGUSi7EYab3KZ4Zt9HX1IiySRYVOWZT
 z6bjWbVfFe7HgbImwaB+WUYumUyNu5dh4AyqIidb9o6BB6ZENfnBNWPi0VDFuSGT
 4wVc8XrcU3d7bt6Sstt+g3WZjn+JBMLNBkNnMjZ+nlp3OoR5F6Tf1RO6mrZtsENa
 sAspr18zNQK7CNBy0uKzBT32Z0oN1wXnsKRS5P1o5/8aEjRr0m8stxes3hOQhtuJ
 Y6rKLN9kGrQIeSY7nagWuGFaJ1uunGXCSgam+kb6YI8nDa3DUbzeIhYMIcqgz/Sx
 Gx2txPzKMHXgzF7Zc+5db9X3E7pg8Y1zrhk7o2oKiFVWrnwlEJivMcRHq9n3anOr
 RGAJPjrRfzwZNIQgYNflYHAdxVLyKKhpxEQDdo/5PXeMRYtghOH+rIxwoS31FHSs
 u/4nf0uHFQfkmSg7nSKicfSWt5ORR5G/H9cc83SRoix35kfPubirkawJ/tkcVuO4
 3n0NeGERtA==
 =ZO6c
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree updates from Rob Herring:

 - a bunch of DT binding conversions to DT schema format

 - clean-ups of the Arm idle-states binding

 - support a default number of cells in of_for_each_phandle() when the
   cells name is missing

 - expose dtbs_check and dt_binding_check in the make help

 - convert writting-schema.md to ReST

 - HiSilicon reset controller binding updates

 - add documentation for MT8516 RNG

* tag 'devicetree-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (46 commits)
  of: restore old handling of cells_name=NULL in of_*_phandle_with_args()
  bus: qcom: fix spelling mistake "ambigous" -> "ambiguous"
  of: Let of_for_each_phandle fallback to non-negative cell_count
  iommu: pass cell_count = -1 to of_for_each_phandle with cells_name
  dt-bindings: arm: Convert Realtek board/soc bindings to json-schema
  dt-bindings: arm: Convert Actions Semi bindings to jsonschema
  dt-bindings: Correct spelling in example schema
  dt-bindings: cpu: Add a support cpu type for cortex-a55
  dt-bindings: gpu: mali-midgard: Add samsung exynos5250 compatible
  dt-bindings: arm: idle-states: Move exit-latency-us explanation
  dt-bindings: arm: idle-states: Add punctuation to improve readability
  dt-bindings: arm: idle-states: Correct "constraint guarantees"
  dt-bindings: arm: idle-states: Correct references to wake-up delay
  dt-bindings: arm: idle-states: Use "e.g." and "i.e." consistently
  pinctrl-mcp23s08: Fix property-name in dt-example
  dt-bindings: Clarify interrupts-extended usage
  dt-bindings: Convert Arm Mali Utgard GPU to DT schema
  dt-bindings: Convert Arm Mali Bifrost GPU to DT schema
  dt-bindings: Convert Arm Mali Midgard GPU to DT schema
  dt-bindings: irq: Convert Allwinner NMI Controller to a schema
  ...
2019-09-19 13:48:37 -07:00
Linus Torvalds
671df18953 dma-mapping updates for 5.4:
- add dma-mapping and block layer helpers to take care of IOMMU
    merging for mmc plus subsequent fixups (Yoshihiro Shimoda)
  - rework handling of the pgprot bits for remapping (me)
  - take care of the dma direct infrastructure for swiotlb-xen (me)
  - improve the dma noncoherent remapping infrastructure (me)
  - better defaults for ->mmap, ->get_sgtable and ->get_required_mask (me)
  - cleanup mmaping of coherent DMA allocations (me)
  - various misc cleanups (Andy Shevchenko, me)
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAl2CSucLHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYPfrhAAgXZA/EdFPvkkCoDrmgtf3XkudX9gajeCd9g4NZy6
 ZBQElTVvm4S0sQj7IXgALnMumDMbbTibW5SQLX5GwQDe+XXBpZ8ajpAnJAXc8a5T
 qaFQ4SInr4CgBZf9nZKDkbSBZ1Tu3AQm1c0QI8riRCkrVTuX4L06xpCef4Yh4mgO
 rwWEjIioYpQiKZMmu98riXh3ZNfFG3mVJRhKt8B6XJbBgnUnjDOPYGgaUwp6CU20
 tFBKL2GaaV0vdLJ5wYhIGXT4DJ8tp9T5n3IYGZv1Ux889RaZEHlCrMxzelYeDbCT
 KhZbhcSECGnddsh73t/UX7/KhytuqnfKa9n+Xo6AWuA47xO4c36quOOcTk9M0vE5
 TfGDmewgL6WIv4lzokpRn5EkfDhyL33j8eYJrJ8e0ldcOhSQIFk4ciXnf2stWi6O
 JrlzzzSid+zXxu48iTfoPdnMr7psTpiMvvRvKfEeMp2FX9Fg6EdMzJYLTEl+COHB
 0WwNacZmY3P01+b5EZXEgqKEZevIIdmPKbyM9rPtTjz8BjBwkABHTpN3fWbVBf7/
 Ax6OPYyW40xp1fnJuzn89m3pdOxn88FpDdOaeLz892Zd+Qpnro1ayulnFspVtqGM
 mGbzA9whILvXNRpWBSQrvr2IjqMRjbBxX3BVACl3MMpOChgkpp5iANNfSDjCftSF
 Zu8=
 =/wGv
 -----END PGP SIGNATURE-----

Merge tag 'dma-mapping-5.4' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - add dma-mapping and block layer helpers to take care of IOMMU merging
   for mmc plus subsequent fixups (Yoshihiro Shimoda)

 - rework handling of the pgprot bits for remapping (me)

 - take care of the dma direct infrastructure for swiotlb-xen (me)

 - improve the dma noncoherent remapping infrastructure (me)

 - better defaults for ->mmap, ->get_sgtable and ->get_required_mask
   (me)

 - cleanup mmaping of coherent DMA allocations (me)

 - various misc cleanups (Andy Shevchenko, me)

* tag 'dma-mapping-5.4' of git://git.infradead.org/users/hch/dma-mapping: (41 commits)
  mmc: renesas_sdhi_internal_dmac: Add MMC_CAP2_MERGE_CAPABLE
  mmc: queue: Fix bigger segments usage
  arm64: use asm-generic/dma-mapping.h
  swiotlb-xen: merge xen_unmap_single into xen_swiotlb_unmap_page
  swiotlb-xen: simplify cache maintainance
  swiotlb-xen: use the same foreign page check everywhere
  swiotlb-xen: remove xen_swiotlb_dma_mmap and xen_swiotlb_dma_get_sgtable
  xen: remove the exports for xen_{create,destroy}_contiguous_region
  xen/arm: remove xen_dma_ops
  xen/arm: simplify dma_cache_maint
  xen/arm: use dev_is_dma_coherent
  xen/arm: consolidate page-coherent.h
  xen/arm: use dma-noncoherent.h calls for xen-swiotlb cache maintainance
  arm: remove wrappers for the generic dma remap helpers
  dma-mapping: introduce a dma_common_find_pages helper
  dma-mapping: always use VM_DMA_COHERENT for generic DMA remap
  vmalloc: lift the arm flag for coherent mappings to common code
  dma-mapping: provide a better default ->get_required_mask
  dma-mapping: remove the dma_declare_coherent_memory export
  remoteproc: don't allow modular build
  ...
2019-09-19 13:27:23 -07:00
Linus Torvalds
c9fe5630da configfs updates for 5.4:
- fix a symlink deadlock (Al Viro)
  - various cleanups (Al Viro, me)
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAl2CSaILHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYMpLBAAmwYW2g9wlNcKdZs0k0Pqn7sGyOErInaRKsS+TP6N
 Ds6CYpU9B1uETL1K46f45QnOJh7fWudMTPY8TISJh/XYrREmmRcCqS1Fh+VZvAFK
 7sjhgP70+ZJEIX4xaixqUnCyNNSHJJwvhDN/BDDiiv1CgJjiZH5jkAV2Nb4dCnyE
 IDAeMvWNUYo+H35hclatd3vB79p+GUOaJnYszQ7LUxfH+WPyliw1PAJDeeZS3u9w
 uq7v8o3+1iKt3o1IGKaPVWKUgzS3RuqFYhdueyJ/xPCWI9NMx3DoT2FuOcvTQwT2
 eoEd6hyJJLUc2MTHpjlytryfkEUTzGJQz3Rvc59O/RQG17evlugPOcWblWQwAJKW
 9PuHIrLus7FmRSazUVGaEdAveVHFupZ7Qh+cUfGUzXlWwdAYldbOnt+TBF4zgOU8
 +/sCk+Zy2hpjx1uY+0h7+dRDCGrgICf/xwoGpsg2uhvY+8ng017wUMNeZYEuWKOJ
 NeqqqP6vCQ8nfljitL8X0XtVSvCri1hSPUJ44adwAah1N/h6uk/N40bkYLPhhC3y
 PPvuVbBsEmGy6rYMkGp7kVuUmSWLs3+WEE0lUfYI73XDGK8dviJawxd+WAF25Y9o
 Z0VfNL4jphT2mS/oSmRbn+7Ukwm7jr9IwpM8OA0SDBKKFyFEv0yMloKK+BdBwyxg
 6XE=
 =H208
 -----END PGP SIGNATURE-----

Merge tag 'configfs-for-5.4' of git://git.infradead.org/users/hch/configfs

Pull configfs updates from Christoph Hellwig:

 - fix a symlink deadlock (Al Viro)

 - various cleanups (Al Viro, me)

* tag 'configfs-for-5.4' of git://git.infradead.org/users/hch/configfs:
  configfs: calculate the symlink target only once
  configfs: make configfs_create() return inode
  configfs: factor dirent removal into helpers
  configfs: fix a deadlock in configfs_symlink()
2019-09-19 13:09:28 -07:00
Brian Cain
18dd1793a3 Hexagon: change maintainer to Brian Cain
Signed-off-by: Brian Cain <bcain@codeaurora.org>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2019-09-19 14:58:15 -05:00
Linus Torvalds
7e3d2c8210 various cifs/smb3 fixes (including for share deleted cases) and features including improved encrypted read performance, and various debugging improvements
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAl2Dq7wACgkQiiy9cAdy
 T1H5Kgv+NdJCBEfMjYzDPCci0plAFjurbPh5GvlrgkrYuRyCEw7KcG0/DltQSoCk
 TOQ0JTVYulyKPd8uwha2p8ylscKwEi3BPHa0+CMg6qRmCtrRMMhh85TF2pScy8Jz
 s1s9RskEvdJMpZ0disu1uge9O4JHNFB3LnfM7bDMxGTDUYMtuAXYIXTqMpLX3KVq
 8NzcXUD0gAdjqo8iYZ/BtdeE7MBUCTvjp4O7pJh0cq+EV7p2G2DzaPhLJ3U5dL/y
 IlMgMBfyuYNH6wZueB+R2ZO1GeiPe6M4sq/Beh2/5dXKGaNECxo3feDFOHsvsasT
 WTllXAe8rz9AH8g8+QT4mxPQYBYw0IcJaQk5y/12gTiD2CR4BiTcNmgYv49tqiTH
 b4Gl6KbjTvyT0iieStUBywCpU93qD04nwuzBOPqT0FG0T6Papx4sTvvYM3ThGs16
 X891RLxdvj9QOjpPnQ4vw9yAd1s7PDjVm7BA5CRhRf0Yvdc7q2YVyitzGYBzjqF0
 K2f/4HRJ
 =4/w5
 -----END PGP SIGNATURE-----

Merge tag '5.4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs updates from Steve French:
 "Various cifs/smb3 fixes (including for share deleted cases) and
  features including improved encrypted read performance, and various
  debugging improvements.

  Note that since I am at a test event this week with the Samba team,
  and at the annual Storage Developer Conference/SMB3 Plugfest test
  event next week a higher than usual number of fixes is expected later
  next week as other features in progress get additional testing and
  review during these two events"

* tag '5.4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: (38 commits)
  cifs: update internal module version number
  cifs: modefromsid: write mode ACE first
  cifs: cifsroot: add more err checking
  smb3: add missing worker function for SMB3 change notify
  cifs: Add support for root file systems
  cifs: modefromsid: make room for 4 ACE
  smb3: fix potential null dereference in decrypt offload
  smb3: fix unmount hang in open_shroot
  smb3: allow disabling requesting leases
  smb3: improve handling of share deleted (and share recreated)
  smb3: display max smb3 requests in flight at any one time
  smb3: only offload decryption of read responses if multiple requests
  cifs: add a helper to find an existing readable handle to a file
  smb3: enable offload of decryption of large reads via mount option
  smb3: allow parallelizing decryption of reads
  cifs: add a debug macro that prints \\server\share for errors
  smb3: fix signing verification of large reads
  smb3: allow skipping signature verification for perf sensitive configurations
  smb3: add dynamic tracepoints for flush and close
  smb3: log warning if CSC policy conflicts with cache mount option
  ...
2019-09-19 10:32:16 -07:00
Linus Torvalds
7a0d796100 Orangefs: a fix and a cleanup
fix: way back in the stone age (2003) mode was set to the magic
      number "755" in what is now fs/orangefs/namei.c(orangefs_symlink).
      Łukasz Wrochna reported it and Artur Świgoń sent in a patch to change
      it to octal. Maybe it shouldn't be a magic number at all but rather
      something like "S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH"...
 
 cleanup: Colin Ian King found a redundant assignment and sent in a
          patch to remove it.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJdep5RAAoJEM9EDqnrzg2++gsP/AwoACf0h1sLApzxXn+eVcUr
 5C454D/tEK5dCS2j3YAOs5O8CXhmV/PHz3foP91d7kdB0WzEWvVS6EZOSCyNCGAk
 XOBWkKEk8yOdFCoBfPsUusJbkHjB1d5npfACiodQk25YgqFXlLGX8qD5KtsYX6hK
 ANMA8pcsADHHINjfCtEkhmvdrYRnWdYBRXhdpSrv6HoREhmi04+C0loGQi+omm5T
 NL+kTBjkUsoENsGoW4hMbv1UlBNkqV1IPFjJfrHPI8FhNG4fjC0rLh+9kxE9dscZ
 ugCFfvGcsBQNxluGN/c6d2NYrGLoYhNImwa7Cx3E2kh9nbtPyH6QdvrVZECjl6zJ
 1DoDKi/bWHYHLzDciBaBiIU/TY1NeHvEYOTOuqty8LdN89E5Lmh7pMu+xDyFnebL
 SLyHf1L5BsxKxyvP97ZcDkiz7XIccIrhQTtF92QihdKJotDW1ONRBvX9ZgrqUQR5
 3RTgPv1LY8yXr0263FsHQUv7NsHP49JdeY6Cn1OjujlSJ5j7t9smmO3CDqLQtLHU
 6Rh2aEL359GDN6DLTOp4ChgxQO5pJIc7kIgqj+xUrPz8lHewDaYCmmFLoIoOcaMw
 L+Z3w9uaGwdonBnl72i18FS9oVrtQoCaDKfEtndJYPE6pgCjle5FOsAIAmkpn3/a
 mhWu/jjOQKsumdIjxQu3
 =ZJ67
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.4-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:
 "A fix and a cleanup.

  The fix: way back in the stone age (2003) mode was set to the magic
  number "755" in what is now fs/orangefs/namei.c(orangefs_symlink).
  Łukasz Wrochna reported it and Artur Świgoń sent in a patch to change
  it to octal. Maybe it shouldn't be a magic number at all but rather
  something like "S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH"...

  cleanup: Colin Ian King found a redundant assignment and sent in a
  patch to remove it"

[ And no, octal numbers for permissions are a lot more legible than a
  binary 'or' of some line noise macros. So 0755 is preferred over
  trying to spell it out using "helpful" macros     - Linus ]

* tag 'for-linus-5.4-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: remove redundant assignment to err
  orangefs: Add octal zero prefix
2019-09-19 10:21:35 -07:00
Linus Torvalds
8e6ee05d8a Merge branch 'work.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull autofs updates from Al Viro:
 "The most interesting part here is getting rid of the last trylock loop
  on dentry->d_lock.

  The ones in fs/dcache.c had been dealt with several years ago, but
  there'd been leftovers in fs/autofs/expire.c"

* 'work.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  autofs_lookup(): hold ->d_lock over playing with ->d_flags
  get rid of autofs_info->active_count
  autofs: simplify get_next_positive_...(), get rid of trylocks
2019-09-19 10:14:22 -07:00
Linus Torvalds
bc7d9aee3f Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc mount API conversions from Al Viro:
 "Conversions to new API for shmem and friends and for mount_mtd()-using
  filesystems.

  As for the rest of the mount API conversions in -next, some of them
  belong in the individual trees (e.g. binderfs one should definitely go
  through android folks, after getting redone on top of their changes).
  I'm going to drop those and send the rest (trivial ones + stuff ACKed
  by maintainers) in a separate series - by that point they are
  independent from each other.

  Some stuff has already migrated into individual trees (NFS conversion,
  for example, or FUSE stuff, etc.); those presumably will go through
  the regular merges from corresponding trees."

* 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  vfs: Make fs_parse() handle fs_param_is_fd-type params better
  vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API
  shmem_parse_one(): switch to use of fs_parse()
  shmem_parse_options(): take handling a single option into a helper
  shmem_parse_options(): don't bother with mpol in separate variable
  shmem_parse_options(): use a separate structure to keep the results
  make shmem_fill_super() static
  make ramfs_fill_super() static
  devtmpfs: don't mix {ramfs,shmem}_fill_super() with mount_single()
  vfs: Convert squashfs to use the new mount API
  mtd: Kill mount_mtd()
  vfs: Convert jffs2 to use the new mount API
  vfs: Convert cramfs to use the new mount API
  vfs: Convert romfs to use the new mount API
  vfs: Add a single-or-reconfig keying to vfs_get_super()
2019-09-19 10:06:57 -07:00
Linus Torvalds
cfb82e1df8 y2038: add inode timestamp clamping
This series from Deepa Dinamani adds a per-superblock minimum/maximum
 timestamp limit for a file system, and clamps timestamps as they are
 written, to avoid random behavior from integer overflow as well as having
 different time stamps on disk vs in memory.
 
 At mount time, a warning is now printed for any file system that can
 represent current timestamps but not future timestamps more than 30
 years into the future, similar to the arbitrary 30 year limit that was
 added to settimeofday().
 
 This was picked as a compromise to warn users to migrate to other file
 systems (e.g. ext4 instead of ext3) when they need the file system to
 survive beyond 2038 (or similar limits in other file systems), but not
 get in the way of normal usage.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJdcs20AAoJEJpsee/mABjZaOwQALl3lBEhg0aV6a0ZZ1uYehtd
 vcjZ6OpehfiOAxYJu0wfLPATo4T0FuBxZKz3+trkJDICcxyc68AJ2wijwInIQnZW
 MrSKnPyv/fSGp8Jr5w/0CLdp6yT6Dh7z4j2UxhwusR1bQh4cCYSswDg29/nmxgKp
 Nu8m7jMvJQ2Q0r4Zy0sT/MaycUcSH5yvpyTcsYFixGOz1niNy91ISs1+aq6HZ3i3
 +cuYTUy13y40iNUHzFBTcJItBnikwZOQ/zjNfJFXZ3bVEUPg8ZTLPYQ0OZz+pM0Z
 AlXCKghb2EOKgq729LtA6oaY+Nom/1Gm1p80q3G+nGRVOqRgC+dfAVPZQoiER5Y1
 zNPEDf2Sf7J9xktvfC+Qqa9QEUPLKs22ZIccG+vYBW65sS8IAiEDH3LAt444GGls
 yB/Cx/Qw7BftpR5Om27Mhm5jDQzr43iTkZaPQWq7ydJXpfxnjlg9L19yS1omDFyV
 hdbBXY6FikUICPKUW6I49z5BhjL+kmK9M2DVljImmdKNDTrfr0xY5M/EWjJZ7X+I
 rnSe9qTY+iQ5/AXANn5wfj1Y6L5IxkmdWI/zDIbKhYMZLCqqFLd3mJERbs+CMDJq
 qNrYyFPReFrg50oSduBPAByMTR4x9hus7iIC7r77kpoz5i60DPmIJoTfFm3844Gv
 sBEyvWV08CpE9mSzXuv6
 =em9y
 -----END PGP SIGNATURE-----

Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground

Pull y2038 vfs updates from Arnd Bergmann:
 "Add inode timestamp clamping.

  This series from Deepa Dinamani adds a per-superblock minimum/maximum
  timestamp limit for a file system, and clamps timestamps as they are
  written, to avoid random behavior from integer overflow as well as
  having different time stamps on disk vs in memory.

  At mount time, a warning is now printed for any file system that can
  represent current timestamps but not future timestamps more than 30
  years into the future, similar to the arbitrary 30 year limit that was
  added to settimeofday().

  This was picked as a compromise to warn users to migrate to other file
  systems (e.g. ext4 instead of ext3) when they need the file system to
  survive beyond 2038 (or similar limits in other file systems), but not
  get in the way of normal usage"

* tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground:
  ext4: Reduce ext4 timestamp warnings
  isofs: Initialize filesystem timestamp ranges
  pstore: fs superblock limits
  fs: omfs: Initialize filesystem timestamp ranges
  fs: hpfs: Initialize filesystem timestamp ranges
  fs: ceph: Initialize filesystem timestamp ranges
  fs: sysv: Initialize filesystem timestamp ranges
  fs: affs: Initialize filesystem timestamp ranges
  fs: fat: Initialize filesystem timestamp ranges
  fs: cifs: Initialize filesystem timestamp ranges
  fs: nfs: Initialize filesystem timestamp ranges
  ext4: Initialize timestamps limits
  9p: Fill min and max timestamps in sb
  fs: Fill in max and min timestamps in superblock
  utimes: Clamp the timestamps before update
  mount: Add mount warning for impending timestamp expiry
  timestamp_truncate: Replace users of timespec64_trunc
  vfs: Add timestamp_truncate() api
  vfs: Add file timestamp range support
2019-09-19 09:42:37 -07:00
Masami Hiramatsu
b78b94b821 selftests/ftrace: Update kprobe event error testcase
Update kprobe event error testcase to test if it correctly
finds the exact same probe event.

Link: http://lkml.kernel.org/r/156879695513.31056.1580235733738840126.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-09-19 11:09:40 -04:00
Masami Hiramatsu
fe60b0ce8e tracing/probe: Reject exactly same probe event
Reject exactly same probe events as existing probes.

Multiprobe allows user to define multiple probes on same
event. If user appends a probe which exactly same definition
(same probe address and same arguments) on existing event,
the event will record same probe information twice.
That can be confusing users, so reject it.

Link: http://lkml.kernel.org/r/156879694602.31056.5533024778165036763.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-09-19 11:09:16 -04:00
Masami Hiramatsu
44d00dc7ce tracing/probe: Fix to allow user to enable events on unloaded modules
Fix to allow user to enable probe events on unloaded modules.

This operations was allowed before commit 60d53e2c3b ("tracing/probe:
Split trace_event related data from trace_probe"), because if users
need to probe module init functions, they have to enable those probe
events before loading module.

Link: http://lkml.kernel.org/r/156879693733.31056.9331322616994665167.stgit@devnote2

Cc: stable@vger.kernel.org
Fixes: 60d53e2c3b ("tracing/probe: Split trace_event related data from trace_probe")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-09-19 09:55:42 -04:00
Uwe Kleine-König
59e9fcf877 of: restore old handling of cells_name=NULL in of_*_phandle_with_args()
Before commit e42ee61017 ("of: Let of_for_each_phandle fallback to
non-negative cell_count") the iterator functions calling
of_for_each_phandle assumed a cell count of 0 if cells_name was NULL.
This corner case was missed when implementing the fallback logic in
e42ee61017 and resulted in an endless loop.

Restore the old behaviour of of_count_phandle_with_args() and
of_parse_phandle_with_args() and add a check to
of_phandle_iterator_init() to prevent a similar failure as a safety
precaution. of_parse_phandle_with_args_map() doesn't need a similar fix
as cells_name isn't NULL there.

Affected drivers are:
 - drivers/base/power/domain.c
 - drivers/base/power/domain.c
 - drivers/clk/ti/clk-dra7-atl.c
 - drivers/hwmon/ibmpowernv.c
 - drivers/i2c/muxes/i2c-demux-pinctrl.c
 - drivers/iommu/mtk_iommu.c
 - drivers/net/ethernet/freescale/fman/mac.c
 - drivers/opp/of.c
 - drivers/perf/arm_dsu_pmu.c
 - drivers/regulator/of_regulator.c
 - drivers/remoteproc/imx_rproc.c
 - drivers/soc/rockchip/pm_domains.c
 - sound/soc/fsl/imx-audmix.c
 - sound/soc/fsl/imx-audmix.c
 - sound/soc/meson/axg-card.c
 - sound/soc/samsung/tm2_wm5110.c
 - sound/soc/samsung/tm2_wm5110.c

Thanks to Geert Uytterhoeven for reporting the issue, Peter Rosin for
helping pinpoint the actual problem and the testers for confirming this
fix.

Fixes: e42ee61017 ("of: Let of_for_each_phandle fallback to non-negative cell_count")
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-09-19 08:33:02 -05:00
Aneesh Kumar K.V
d9101bfa6a powerpc/mm/mce: Keep irqs disabled during lockless page table walk
__find_linux_mm_pte() returns a page table entry pointer after walking
the page table without holding locks. To make it safe against a THP
split and/or collapse, we disable interrupts around the lockless page
table walk. However we need to keep interrupts disabled as long as we
use the page table entry pointer that is returned.

Fix addr_to_pfn() to do that.

Fixes: ba41e1e1cc ("powerpc/mce: Hookup derror (load/store) UE errors")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
[mpe: Rearrange code slightly and tweak change log wording]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190918145328.28602-1-aneesh.kumar@linux.ibm.com
2019-09-19 21:24:59 +10:00
Linus Torvalds
b41dae061b New code for 5.4:
- Remove KM_SLEEP/KM_NOSLEEP.
 - Ensure that memory buffers for IO are properly sector-aligned to avoid
   problems that the block layer doesn't check.
 - Make the bmap scrubber more efficient in its record checking.
 - Don't crash xfs_db when superblock inode geometry is corrupt.
 - Fix btree key helper functions.
 - Remove unneeded error returns for things that can't fail.
 - Fix buffer logging bugs in repair.
 - Clean up iterator return values.
 - Speed up directory entry creation.
 - Enable allocation of xattr value memory buffer during lookup.
 - Fix readahead racing with truncate/punch hole.
 - Other minor cleanups.
 - Fix one AGI/AGF deadlock with RENAME_WHITEOUT.
 - More BUG -> WARN whackamole.
 - Fix various problems with the log failing to advance under certain
   circumstances, which results in stalls during mount.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl1yhwsACgkQ+H93GTRK
 tOtTig//fYLgFVz3l6ffCb8WkJkmi7iWOJp3eLzK55+3W0++ThNsMlRTOWH7xCpZ
 f+3LEvvm1ILBgf4XVlwUGt2HlLmNZeKYmiOl/jZxCH25KdfILRIyeyacAYf9vIWf
 NQr5HOutsa1IfEDCiDwEnxuuVbgC+rN8j7Rlp/PpweXwRYjssqRWnGRgaZchLbyr
 JZ40D9J1HLooY/yftKrgnxtfL4rmAhPoGdX3DnZmobHYRpFHrY31Ks24w6ogShDu
 usczNeShXWlg31B4fVHo/rrVQ0xG77U+w/DTNvrAj0uvAlzvWVVibpaZjZtbhadO
 NM0zOG41BY/ExBAHhpg0ieVdYI7wNEftF9gjyT7cXO9soD1mRgH6UKQMCm+o1frF
 brtcpgQS2aEyGZaXGBIS23ziT/+LLGcav7LUeo7Rf6yiVoEA+FlsGaymC7l+FGCQ
 lcgHdeRkeukdj+GJlmpiedb+Xya2g464CXswW7JtCghdNsypRsI4OdQQ2r8Du+w0
 PUwfugv1cMAz99xfSZtSoTa7pimFxb6tHRcoqZVfQCefbKQ0VMJDU/AY7gQ2U3UM
 PiFKXgPFo0p4tUvA/9ECTPcMDhMKMv200CGCJKXrokWwHtJ6jrAHb+EobjrfoiyX
 +hkGEmzzt3vur7Zt2+YesCH3tZj1UfpsemOlorxYQk3hbsA9HEc=
 =TZLp
 -----END PGP SIGNATURE-----

Merge tag 'xfs-5.4-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Darrick Wong:
 "For this cycle we have the usual pile of cleanups and bug fixes, some
  performance improvements for online metadata scrubbing, massive
  speedups in the directory entry creation code, some performance
  improvement in the file ACL lookup code, a fix for a logging stall
  during mount, and fixes for concurrency problems.

  It has survived a couple of weeks of xfstests runs and merges cleanly.

  Summary:

   - Remove KM_SLEEP/KM_NOSLEEP.

   - Ensure that memory buffers for IO are properly sector-aligned to
     avoid problems that the block layer doesn't check.

   - Make the bmap scrubber more efficient in its record checking.

   - Don't crash xfs_db when superblock inode geometry is corrupt.

   - Fix btree key helper functions.

   - Remove unneeded error returns for things that can't fail.

   - Fix buffer logging bugs in repair.

   - Clean up iterator return values.

   - Speed up directory entry creation.

   - Enable allocation of xattr value memory buffer during lookup.

   - Fix readahead racing with truncate/punch hole.

   - Other minor cleanups.

   - Fix one AGI/AGF deadlock with RENAME_WHITEOUT.

   - More BUG -> WARN whackamole.

   - Fix various problems with the log failing to advance under certain
     circumstances, which results in stalls during mount"

* tag 'xfs-5.4-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (45 commits)
  xfs: push the grant head when the log head moves forward
  xfs: push iclog state cleaning into xlog_state_clean_log
  xfs: factor iclog state processing out of xlog_state_do_callback()
  xfs: factor callbacks out of xlog_state_do_callback()
  xfs: factor debug code out of xlog_state_do_callback()
  xfs: prevent CIL push holdoff in log recovery
  xfs: fix missed wakeup on l_flush_wait
  xfs: push the AIL in xlog_grant_head_wake
  xfs: Use WARN_ON_ONCE for bailout mount-operation
  xfs: Fix deadlock between AGI and AGF with RENAME_WHITEOUT
  xfs: define a flags field for the AG geometry ioctl structure
  xfs: add a xfs_valid_startblock helper
  xfs: remove the unused XFS_ALLOC_USERDATA flag
  xfs: cleanup xfs_fsb_to_db
  xfs: fix the dax supported check in xfs_ioctl_setattr_dax_invalidate
  xfs: Fix stale data exposure when readahead races with hole punch
  fs: Export generic_fadvise()
  mm: Handle MADV_WILLNEED through vfs_fadvise()
  xfs: allocate xattr buffer on demand
  xfs: consolidate attribute value copying
  ...
2019-09-18 18:32:43 -07:00
Linus Torvalds
e6bc9de714 Changes for 5.4:
- Prohibit writing to active swap files and swap partitions.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl1cDHQACgkQ+H93GTRK
 tOs1qw//aqXAQ7bpLDl7jx9CSuAighzKir0mHYFm9HUsnuRT6gLqIOVSeugoi8hY
 tYhPNzcKHL39YDa1QfKo1RKW6uCwsECHT/5TebLxBkTL3vGGAenPchAcjj89SV54
 lQ/h8O6hkDU+KCKC0kmDem7ma7DD5YZmWXDxW/HvnygjCnZ9BFaOeLQt/TPBmOmN
 lozPHcdrxhIuCuSTMjIZRq27Zl6uzj5tr+FkT+FWiYDrGhgWT7is6o397SEm7yYT
 3JqUQ+ZUOY4IwLlrWiVKqi0IqjvWqhaLzmjZaKF+YC8Ni0sdpaDdsE/uPSCyQ7k7
 28qbfypnu7bswakjcekdSX2Dj/SZivFb8AzlqaSIMVlw4STFzjMMYMLib8/OlPES
 z1pAjXHypLjNO3dNBYp/mRll+/BQ2NM6oCtnVVQGKVnlcx3oLo+n6JSRK8t74DTf
 BkYu93aybBpfE49Fb3VQum+9okg9BdShRxvUp023/WTUaa8aUyIbizn3iTrke/sx
 0bC+Vvdr33JZnoO8WKVzSd7COTHOTQ920NodTKAJ9bkF3WKyLM135ctavHrtdAg3
 FHBXpN7AjbOaLovLpiy3eb//ghKJwgyhqbN6VCGTudC/nkaXq7y7M3DPbXxQYxom
 yCA0qMByMg+cL4BtzS52QEda7xK1iiuQ/3jbdQ4lFuBHhwekVKs=
 =Ag/B
 -----END PGP SIGNATURE-----

Merge tag 'vfs-5.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull swap access updates from Darrick Wong:
 "Prohibit writing to active swap files and swap partitions.

  There's no non-malicious use case for allowing userspace to scribble
  on storage that the kernel thinks it owns"

* tag 'vfs-5.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  vfs: don't allow writes to swap files
  mm: set S_SWAPFILE on blockdev swap devices
2019-09-18 17:35:20 -07:00
Linus Torvalds
b6c0d35772 overlayfs fixes for 5.3
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCXXoNCAAKCRDh3BK/laaZ
 PCscAQChaXWz1reo1p4yuvWk66uvD7OdN96sCK6I/QQUTXTXuAEA7nO89rWoU32k
 AV9UO8lo6BzS/4JPdeB3lcpOZt7yUgo=
 =vpm4
 -----END PGP SIGNATURE-----

Merge tag 'ovl-fixes-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

Pull overlayfs fixes from Miklos Szeredi:
 "Fix a regression in docker introduced by overlayfs changes in 4.19.
  Also fix a couple of miscellaneous bugs"

* tag 'ovl-fixes-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: filter of trusted xattr results in audit
  ovl: Fix dereferencing possible ERR_PTR()
  ovl: fix regression caused by overlapping layers detection
2019-09-18 17:33:32 -07:00
Linus Torvalds
7d14df2d28 for-5.4-tag
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAl1/hCoACgkQxWXV+ddt
 WDs0lQ//flGLX4fvaY2vuWA26t1elITnIatyX8S+xP4pUsT1Tyy1egeGpR8Jku/7
 sCOgUlEM2MNXqveOdkQqPJuFPp3B6tInz4S/fowtLlz4enp7uTXw2SFuS3bhOJ+b
 rpxK9VTc6QV3aipBCG31m8fnDiMaj2Hcspp0oej3V2mBhLUvzn69+P4eo7WN+46w
 r2F605+lfURauHE6WjM09HINx3NGSfPqdSA5rJvHSm0jlxhb9l3DJOX8cYkbf8lo
 MAbLDZmtiDiQAqRcsQPi6LZ1LKBkOYaeSnVvnXnH23FI04LBra3duk03qpvWCW2R
 c1tFnKF5vACCyBQp1z8WYP9GjjoW5WT33R2iXufgwXP6pkLpS/12qLLeXqO2K4p5
 zINKrIkF3P+GHxiDsQZE3G9A4UpKWFHCxKdxyWIV8LQDEBrgE2Mo3NThEyRBbP+8
 1dia4j+qFHvPTMNBvBCjCZMqDwbCe9H70WOXKGE36JITW2le91mn4qHl4SuWReUP
 IoHYDVcC/eBGRegc9X+bLJNjJYqo+XFo6u32/fUC5YVhngycQEi2vg1vv8fWQ7dB
 g/Ruo3Inrk8h5kPmrHvbOzGazgANIt5ELHrYMRMA5WSgaq29jtGt9oTnsrd+I88G
 aPJtwAZfLwdSjl/pwJw8atEPrf04DA2w+gO7rZ/AmeLshnGfOTc=
 =bY+a
 -----END PGP SIGNATURE-----

Merge tag 'for-5.4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "This continues with work on code refactoring, sanity checks and space
  handling. There are some less user visible changes, nothing that would
  particularly stand out.

  User visible changes:
   - tree checker, more sanity checks of:
       - ROOT_ITEM (key, size, generation, level, alignment, flags)
       - EXTENT_ITEM and METADATA_ITEM checks (key, size, offset,
         alignment, refs)
       - tree block reference items
       - EXTENT_DATA_REF (key, hash, offset)

   - deprecate flag BTRFS_SUBVOL_CREATE_ASYNC for subvolume creation
     ioctl, scheduled removal in 5.7

   - delete stale and unused UAPI definitions
     BTRFS_DEV_REPLACE_ITEM_STATE_*

   - improved export of debugging information available via existing
     sysfs directory structure

   - try harder to delete relations between qgroups and allow to delete
     orphan entries

   - remove unreliable space checks before relocation starts

  Core:
   - space handling:
       - improved ticket reservations and other high level logic in
         order to remove special cases
       - factor flushing infrastructure and use it for different
         contexts, allows to remove some special case handling
       - reduce metadata reservation when only updating inodes
       - reduce global block reserve minimum size (affects small
         filesystems)
       - improved overcommit logic wrt global block reserve

   - tests:
       - fix memory leaks in extent IO tree
       - catch all TRIM range

  Fixes:
   - fix ENOSPC errors, leading to transaction aborts, when cloning
     extents

   - several fixes for inode number cache (mount option inode_cache)

   - fix potential soft lockups during send when traversing large trees

   - fix unaligned access to space cache pages with SLUB debug on
     (PowerPC)

  Other:
   - refactoring public/private functions, moving to new or more
     appropriate files

   - defines converted to enums

   - error handling improvements

   - more assertions and comments

   - old code deletion"

* tag 'for-5.4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (138 commits)
  btrfs: Relinquish CPUs in btrfs_compare_trees
  btrfs: Don't assign retval of btrfs_try_tree_write_lock/btrfs_tree_read_lock_atomic
  btrfs: create structure to encode checksum type and length
  btrfs: turn checksum type define into an enum
  btrfs: add enospc debug messages for ticket failure
  btrfs: do not account global reserve in can_overcommit
  btrfs: use btrfs_try_granting_tickets in update_global_rsv
  btrfs: always reserve our entire size for the global reserve
  btrfs: change the minimum global reserve size
  btrfs: rename btrfs_space_info_add_old_bytes
  btrfs: remove orig_bytes from reserve_ticket
  btrfs: fix may_commit_transaction to deal with no partial filling
  btrfs: rework wake_all_tickets
  btrfs: refactor the ticket wakeup code
  btrfs: stop partially refilling tickets when releasing space
  btrfs: add space reservation tracepoint for reserved bytes
  btrfs: roll tracepoint into btrfs_space_info_update helper
  btrfs: do not allow reservations if we have pending tickets
  btrfs: stop clearing EXTENT_DIRTY in inode I/O tree
  btrfs: treat RWF_{,D}SYNC writes as sync for CRCs
  ...
2019-09-18 17:29:31 -07:00
Linus Torvalds
0bb73e42f0 AFS development
Tested-by: Marc Dionne <marc.dionne@auristor.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEqG5UsNXhtOCrfGQP+7dXa6fLC2sFAl1+owMACgkQ+7dXa6fL
 C2v6+RAAoelLwYFRYYwQRJ1JnPapUGgHQSlDR7nlOXAc69yNWuKp4BIh/29G4ZgP
 Z6f/puXIogc8zwhQ958omDP7ZkFLydP9JkXUsYJuDzjG2pFLCSqgXm4fp6+Srb0Y
 L2JHm9geMfM0B2I+uuPCQSl33NcZrBh6lKONFyXP+tZ+ihSxqegGVCoNwFBpyKFl
 7pVXSzVUW7OxLRsNAYqONcW5Kv89wqnB13lBIl8gpfyahHu2y6oNVMoEyr6ZwcSW
 X+VEC9BJeFYkO7kc4h0+EavovKON4N26Eo0+7dtZf/ytURxD5FtTc+nfRKbb4gHq
 qAfJwEWJsTCO0ej042j1cXizLcOoAC6DMHRnVbLA3RukiWvVsjHtIv1bxCxEULw9
 Ye4ktmdfoQk9LB/b2sGN/9NShMi/pmuHeOmtegDfN/h2aF0cI5fMusdf7XPuAPv7
 qYfBDSZ+tHkwp2R72Bmv3a0kqqTZnRXQLx1C4smQlE6yH74l8/iSl+J6e5lEJ247
 KjI5x0WNurCOYCjVaihC7fV8X/fyUsyuxw7Ui9z7a9BxHM838ZiFPzPd09kmoL6T
 WqrllWJ35R4Bv8e5s6hGzZz52n5cW0LUnVwepPghe2adZ3LY49ej8ZSY1oTmjmOP
 sZZKsdmzCbd0p5aw37X424tk8yT8kexLM6Yw48GyYeUv659VLkA=
 =Nueu
 -----END PGP SIGNATURE-----

Merge tag 'afs-next-20190915' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull AFS updates from David Howells:
 "Here's a set of patches for AFS. The first three are trivial, deleting
  unused symbols and rolling out a wrapper function.

  The fourth and fifth patches make use of the previously added RCU-safe
  request_key facility to allow afs_permission() and afs_d_revalidate()
  to attempt to operate without dropping out of RCU-mode pathwalk. Under
  certain conditions, such as conflict with another client, we still
  have to drop out anyway, take a lock and consult the server"

* tag 'afs-next-20190915' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Support RCU pathwalk
  afs: Provide an RCU-capable key lookup
  afs: Use afs_extract_discard() rather than iov_iter_discard()
  afs: remove unused variable 'afs_zero_fid'
  afs: remove unused variable 'afs_voltypes'
2019-09-18 17:17:12 -07:00
Linus Torvalds
f60c55a94e fs-verity for 5.4
Please consider pulling fs-verity for 5.4.
 
 fs-verity is a filesystem feature that provides Merkle tree based
 hashing (similar to dm-verity) for individual readonly files, mainly for
 the purpose of efficient authenticity verification.
 
 This pull request includes:
 
 (a) The fs/verity/ support layer and documentation.
 
 (b) fs-verity support for ext4 and f2fs.
 
 Compared to the original fs-verity patchset from last year, the UAPI to
 enable fs-verity on a file has been greatly simplified.  Lots of other
 things were cleaned up too.
 
 fs-verity is planned to be used by two different projects on Android;
 most of the userspace code is in place already.  Another userspace tool
 ("fsverity-utils"), and xfstests, are also available.  e2fsprogs and
 f2fs-tools already have fs-verity support.  Other people have shown
 interest in using fs-verity too.
 
 I've tested this on ext4 and f2fs with xfstests, both the existing tests
 and the new fs-verity tests.  This has also been in linux-next since
 July 30 with no reported issues except a couple minor ones I found
 myself and folded in fixes for.
 
 Ted and I will be co-maintaining fs-verity.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCXX8ZUBQcZWJpZ2dlcnNA
 Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK2YOAQCbnBAKWDxXS3alLARRwjQLjmEtQIGl
 gsek+WurFIg/zAEAlpSzHwu13LvYzTqv3rhO2yhSlvhnDu4GQEJPXPm0wgM=
 =ID0n
 -----END PGP SIGNATURE-----

Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fs-verity support from Eric Biggers:
 "fs-verity is a filesystem feature that provides Merkle tree based
  hashing (similar to dm-verity) for individual readonly files, mainly
  for the purpose of efficient authenticity verification.

  This pull request includes:

   (a) The fs/verity/ support layer and documentation.

   (b) fs-verity support for ext4 and f2fs.

  Compared to the original fs-verity patchset from last year, the UAPI
  to enable fs-verity on a file has been greatly simplified. Lots of
  other things were cleaned up too.

  fs-verity is planned to be used by two different projects on Android;
  most of the userspace code is in place already. Another userspace tool
  ("fsverity-utils"), and xfstests, are also available. e2fsprogs and
  f2fs-tools already have fs-verity support. Other people have shown
  interest in using fs-verity too.

  I've tested this on ext4 and f2fs with xfstests, both the existing
  tests and the new fs-verity tests. This has also been in linux-next
  since July 30 with no reported issues except a couple minor ones I
  found myself and folded in fixes for.

  Ted and I will be co-maintaining fs-verity"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  f2fs: add fs-verity support
  ext4: update on-disk format documentation for fs-verity
  ext4: add fs-verity read support
  ext4: add basic fs-verity support
  fs-verity: support builtin file signatures
  fs-verity: add SHA-512 support
  fs-verity: implement FS_IOC_MEASURE_VERITY ioctl
  fs-verity: implement FS_IOC_ENABLE_VERITY ioctl
  fs-verity: add data verification hooks for ->readpages()
  fs-verity: add the hook for file ->setattr()
  fs-verity: add the hook for file ->open()
  fs-verity: add inode and superblock fields
  fs-verity: add Kconfig and the helper functions for hashing
  fs: uapi: define verity bit for FS_IOC_GETFLAGS
  fs-verity: add UAPI header
  fs-verity: add MAINTAINERS file entry
  fs-verity: add a documentation file
2019-09-18 16:59:14 -07:00
Linus Torvalds
734d1ed83e fscrypt update for 5.4
This is a large update to fs/crypto/ which includes:
 
 - Add ioctls that add/remove encryption keys to/from a filesystem-level
   keyring.  These fix user-reported issues where e.g. an encrypted home
   directory can break NetworkManager, sshd, Docker, etc. because they
   don't get access to the needed keyring.  These ioctls also provide a
   way to lock encrypted directories that doesn't use the vm.drop_caches
   sysctl, so is faster, more reliable, and doesn't always need root.
 
 - Add a new encryption policy version ("v2") which switches to a more
   standard, secure, and flexible key derivation function, and starts
   verifying that the correct key was supplied before using it.  The key
   derivation improvement is needed for its own sake as well as for
   ongoing feature work for which the current way is too inflexible.
 
 Work is in progress to update both Android and the 'fscrypt' userspace
 tool to use both these features.  (Working patches are available and
 just need to be reviewed+merged.)  Chrome OS will likely use them too.
 
 This has also been tested on ext4, f2fs, and ubifs with xfstests -- both
 the existing encryption tests, and the new tests for this.  This has
 also been in linux-next since Aug 16 with no reported issues.  I'm also
 using an fscrypt v2-encrypted home directory on my personal desktop.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCXX8L/BQcZWJpZ2dlcnNA
 Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK3DqAQDER8ji5uMWbh00h4+eywfIQdcrUWI0
 t2iEdqfNOoGTWAEAhE2u0SebIVwjluQ3N3HU9b/U6e5R0ZkZU9IQdwkZhQ0=
 =J5WG
 -----END PGP SIGNATURE-----

Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fscrypt updates from Eric Biggers:
 "This is a large update to fs/crypto/ which includes:

   - Add ioctls that add/remove encryption keys to/from a
     filesystem-level keyring.

     These fix user-reported issues where e.g. an encrypted home
     directory can break NetworkManager, sshd, Docker, etc. because they
     don't get access to the needed keyring. These ioctls also provide a
     way to lock encrypted directories that doesn't use the
     vm.drop_caches sysctl, so is faster, more reliable, and doesn't
     always need root.

   - Add a new encryption policy version ("v2") which switches to a more
     standard, secure, and flexible key derivation function, and starts
     verifying that the correct key was supplied before using it.

     The key derivation improvement is needed for its own sake as well
     as for ongoing feature work for which the current way is too
     inflexible.

  Work is in progress to update both Android and the 'fscrypt' userspace
  tool to use both these features. (Working patches are available and
  just need to be reviewed+merged.) Chrome OS will likely use them too.

  This has also been tested on ext4, f2fs, and ubifs with xfstests --
  both the existing encryption tests, and the new tests for this. This
  has also been in linux-next since Aug 16 with no reported issues. I'm
  also using an fscrypt v2-encrypted home directory on my personal
  desktop"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: (27 commits)
  ext4 crypto: fix to check feature status before get policy
  fscrypt: document the new ioctls and policy version
  ubifs: wire up new fscrypt ioctls
  f2fs: wire up new fscrypt ioctls
  ext4: wire up new fscrypt ioctls
  fscrypt: require that key be added when setting a v2 encryption policy
  fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS ioctl
  fscrypt: allow unprivileged users to add/remove keys for v2 policies
  fscrypt: v2 encryption policy support
  fscrypt: add an HKDF-SHA512 implementation
  fscrypt: add FS_IOC_GET_ENCRYPTION_KEY_STATUS ioctl
  fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY ioctl
  fscrypt: add FS_IOC_ADD_ENCRYPTION_KEY ioctl
  fscrypt: rename keyinfo.c to keysetup.c
  fscrypt: move v1 policy key setup to keysetup_v1.c
  fscrypt: refactor key setup code in preparation for v2 policies
  fscrypt: rename fscrypt_master_key to fscrypt_direct_key
  fscrypt: add ->ci_inode to fscrypt_info
  fscrypt: use FSCRYPT_* definitions, not FS_*
  fscrypt: use FSCRYPT_ prefix for uapi constants
  ...
2019-09-18 16:08:52 -07:00
Linus Torvalds
d013cc800a File locking changes for v5.4
-----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEES8DXskRxsqGE6vXTAA5oQRlWghUFAl1/Zn0THGpsYXl0b25A
 a2VybmVsLm9yZwAKCRAADmhBGVaCFU5cD/9YDxYpQhOS0DvZcjBJwdYf7Wdck5gP
 plbyseJPLmjsILmZzYQpZB/vho0mlMMXgcmQ824x+SYPRN89+0kKDmM7Zio+4Rpo
 QpsQHda/aQfPt0LWO387tYwIHAvvibKPbI+WTFBvA2ARtfqhFUESIQtoshcRQsSa
 EolWDOpFO3AVuaQxenRp8Eb3y2a+X4v6mBRrhFFwNJGlqGHgkwTAor3upVgQXZYW
 4ZQ25anwF5JIySq3K3dG5W1I2iPPAoTIPzfJBMgq46ZINgwxNMgLBc6KKckG6rvW
 LAOWxa7h3A/ac8OYzxqZ0M8Jm6Alshgy+uNvxngPAdyxJQzlYkw1wMVG4gRfEzdP
 642P9gEjtBwW7aBydZ2hkkH7BQNlBrs8zpsiQK2aKXbfmu8/LGiXmpaa0yTPqX0r
 CswLK3aqfCP4wFfmb/Xa4vCa6SIPWu2J7XaCDgHo+LABbzfxtEoFQgQJX5+Ph3D1
 7/CXVAfCYeLZ0Lf1XaFURib/uh5ll9WebXhQbzIGvAWePlZQEqT8jB7X8D45dCRB
 vRHNmT5GbG0Hmtw5q+woYyje1wuWkQbAzGRLdc+2byc7LehT4gFRt++4IMUATg9z
 y8B3pJSWJ0au9+SK+ymJrnX/+aV4n5LzCSLYJ+DD7g8lgeo/US1iTbP8lQqY3pnb
 6LF2WGZQGlf36w==
 =63t2
 -----END PGP SIGNATURE-----

Merge tag 'filelock-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux

Pull file locking updates from Jeff Layton:
 "Just a couple of minor bugfixes, a revision to a tracepoint to account
  for some earlier changes to the internals, and a patch to add a
  pr_warn message when someone tries to mount a filesystem with '-o
  mand' on a kernel that has that support disabled"

* tag 'filelock-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  locks: fix a memory leak bug in __break_lease()
  locks: print a warning when mount fails due to lack of "mand" support
  locks: Fix procfs output for file leases
  locks: revise generic_add_lease tracepoint
2019-09-18 13:41:01 -07:00
Linus Torvalds
e170eb2771 Merge branch 'work.mount-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs mount API infrastructure updates from Al Viro:
 "Infrastructure bits of mount API conversions.

  The rest is more of per-filesystem updates and that will happen
  in separate pull requests"

* 'work.mount-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  mtd: Provide fs_context-aware mount_mtd() replacement
  vfs: Create fs_context-aware mount_bdev() replacement
  new helper: get_tree_keyed()
  vfs: set fs_context::user_ns for reconfigure
2019-09-18 13:15:58 -07:00
Linus Torvalds
b30d87cf96 Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull d_path fix from Al Viro:
 "Fix d_absolute_path() regression in the last cycle (felt by tomoyo,
  mostly)"

* 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  [PATCH] fix d_absolute_path() interplay with fsmount()
2019-09-18 13:14:14 -07:00
Linus Torvalds
53e5e7a7a7 Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs namei updates from Al Viro:
 "Pathwalk-related stuff"

[ Audit-related cleanups, misc simplifications, and easier to follow
  nd->root refcounts     - Linus ]

* 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  devpts_pty_kill(): don't bother with d_delete()
  infiniband: don't bother with d_delete()
  hypfs: don't bother with d_delete()
  fs/namei.c: keep track of nd->root refcount status
  fs/namei.c: new helper - legitimize_root()
  kill the last users of user_{path,lpath,path_dir}()
  namei.h: get the comments on LOOKUP_... in sync with reality
  kill LOOKUP_NO_EVAL, don't bother including namei.h from audit.h
  audit_inode(): switch to passing AUDIT_INODE_...
  filename_mountpoint(): make LOOKUP_NO_EVAL unconditional there
  filename_lookup(): audit_inode() argument is always 0
2019-09-18 13:03:01 -07:00
Linus Torvalds
81160dda9a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:

 1) Support IPV6 RA Captive Portal Identifier, from Maciej Żenczykowski.

 2) Use bio_vec in the networking instead of custom skb_frag_t, from
    Matthew Wilcox.

 3) Make use of xmit_more in r8169 driver, from Heiner Kallweit.

 4) Add devmap_hash to xdp, from Toke Høiland-Jørgensen.

 5) Support all variants of 5750X bnxt_en chips, from Michael Chan.

 6) More RTNL avoidance work in the core and mlx5 driver, from Vlad
    Buslov.

 7) Add TCP syn cookies bpf helper, from Petar Penkov.

 8) Add 'nettest' to selftests and use it, from David Ahern.

 9) Add extack support to drop_monitor, add packet alert mode and
    support for HW drops, from Ido Schimmel.

10) Add VLAN offload to stmmac, from Jose Abreu.

11) Lots of devm_platform_ioremap_resource() conversions, from
    YueHaibing.

12) Add IONIC driver, from Shannon Nelson.

13) Several kTLS cleanups, from Jakub Kicinski.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1930 commits)
  mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer
  mlxsw: spectrum: Register CPU port with devlink
  mlxsw: spectrum_buffers: Prevent changing CPU port's configuration
  net: ena: fix incorrect update of intr_delay_resolution
  net: ena: fix retrieval of nonadaptive interrupt moderation intervals
  net: ena: fix update of interrupt moderation register
  net: ena: remove all old adaptive rx interrupt moderation code from ena_com
  net: ena: remove ena_restore_ethtool_params() and relevant fields
  net: ena: remove old adaptive interrupt moderation code from ena_netdev
  net: ena: remove code duplication in ena_com_update_nonadaptive_moderation_interval _*()
  net: ena: enable the interrupt_moderation in driver_supported_features
  net: ena: reimplement set/get_coalesce()
  net: ena: switch to dim algorithm for rx adaptive interrupt moderation
  net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
  net: phy: adin: implement Energy Detect Powerdown mode via phy-tunable
  ethtool: implement Energy Detect Powerdown support via phy-tunable
  xen-netfront: do not assume sk_buff_head list is empty in error handling
  s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb”
  net: ena: don't wake up tx queue when down
  drop_monitor: Better sanitize notified packets
  ...
2019-09-18 12:34:53 -07:00
Linus Torvalds
8b53c76533 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Add the ability to abort a skcipher walk.

  Algorithms:
   - Fix XTS to actually do the stealing.
   - Add library helpers for AES and DES for single-block users.
   - Add library helpers for SHA256.
   - Add new DES key verification helper.
   - Add surrounding bits for ESSIV generator.
   - Add accelerations for aegis128.
   - Add test vectors for lzo-rle.

  Drivers:
   - Add i.MX8MQ support to caam.
   - Add gcm/ccm/cfb/ofb aes support in inside-secure.
   - Add ofb/cfb aes support in media-tek.
   - Add HiSilicon ZIP accelerator support.

  Others:
   - Fix potential race condition in padata.
   - Use unbound workqueues in padata"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (311 commits)
  crypto: caam - Cast to long first before pointer conversion
  crypto: ccree - enable CTS support in AES-XTS
  crypto: inside-secure - Probe transform record cache RAM sizes
  crypto: inside-secure - Base RD fetchcount on actual RD FIFO size
  crypto: inside-secure - Base CD fetchcount on actual CD FIFO size
  crypto: inside-secure - Enable extended algorithms on newer HW
  crypto: inside-secure: Corrected configuration of EIP96_TOKEN_CTRL
  crypto: inside-secure - Add EIP97/EIP197 and endianness detection
  padata: remove cpu_index from the parallel_queue
  padata: unbind parallel jobs from specific CPUs
  padata: use separate workqueues for parallel and serial work
  padata, pcrypt: take CPU hotplug lock internally in padata_alloc_possible
  crypto: pcrypt - remove padata cpumask notifier
  padata: make padata_do_parallel find alternate callback CPU
  workqueue: require CPU hotplug read exclusion for apply_workqueue_attrs
  workqueue: unconfine alloc/apply/free_workqueue_attrs()
  padata: allocate workqueue internally
  arm64: dts: imx8mq: Add CAAM node
  random: Use wait_event_freezable() in add_hwgenerator_randomness()
  crypto: ux500 - Fix COMPILE_TEST warnings
  ...
2019-09-18 12:11:14 -07:00
Linus Torvalds
6cfae0c26b Char/Misc driver patches for 5.4-rc1
Here is the big char/misc driver pull request for 5.4-rc1.
 
 As has been happening in previous releases, more and more individual
 driver subsystem trees are ending up in here.  Now if that is good or
 bad I can't tell, but hopefully it makes your life easier as it's more
 of an aggregation of trees together to one merge point for you.
 
 Anyway, lots of stuff in here:
 	- habanalabs driver updates
 	- thunderbolt driver updates
 	- misc driver updates
 	- coresight and intel_th hwtracing driver updates
 	- fpga driver updates
 	- extcon driver updates
 	- some dma driver updates
 	- char driver updates
 	- android binder driver updates
 	- nvmem driver updates
 	- phy driver updates
 	- parport driver fixes
 	- pcmcia driver fix
 	- uio driver updates
 	- w1 driver updates
 	- configfs fixes
 	- other assorted driver updates
 
 All of these have been in linux-next for a long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXYIT1g8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ym9lwCgrHZlMMvfYNVm6GQ5ge58JJsVTL4AoNatTcL4
 hfVMA6pCHWBjV65xVSf6
 =Tijw
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver pull request for 5.4-rc1.

  As has been happening in previous releases, more and more individual
  driver subsystem trees are ending up in here. Now if that is good or
  bad I can't tell, but hopefully it makes your life easier as it's more
  of an aggregation of trees together to one merge point for you.

  Anyway, lots of stuff in here:
     - habanalabs driver updates
     - thunderbolt driver updates
     - misc driver updates
     - coresight and intel_th hwtracing driver updates
     - fpga driver updates
     - extcon driver updates
     - some dma driver updates
     - char driver updates
     - android binder driver updates
     - nvmem driver updates
     - phy driver updates
     - parport driver fixes
     - pcmcia driver fix
     - uio driver updates
     - w1 driver updates
     - configfs fixes
     - other assorted driver updates

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits)
  misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation
  habanalabs: correctly cast variable to __le32
  habanalabs: show correct id in error print
  habanalabs: stop using the acronym KMD
  habanalabs: display card name as sensors header
  habanalabs: add uapi to retrieve aggregate H/W events
  habanalabs: add uapi to retrieve device utilization
  habanalabs: Make the Coresight timestamp perpetual
  habanalabs: explicitly set the queue-id enumerated numbers
  habanalabs: print to kernel log when reset is finished
  habanalabs: replace __le32_to_cpu with le32_to_cpu
  habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64
  habanalabs: Handle HW_IP_INFO if device disabled or in reset
  habanalabs: Expose devices after initialization is done
  habanalabs: improve security in Debug IOCTL
  habanalabs: use default structure for user input in Debug IOCTL
  habanalabs: Add descriptive name to PSOC app status register
  habanalabs: Add descriptive names to PSOC scratch-pad registers
  habanalabs: create two char devices per ASIC
  habanalabs: change device_setup_cdev() to be more generic
  ...
2019-09-18 11:14:31 -07:00
Linus Torvalds
e6874fc294 Staging/IIO driver patches for 5.4-rc1
Here is the big staging/iio driver update for 5.4-rc1.
 
 Lots of churn here, with a few driver/filesystems moving out of staging
 finally:
 	- erofs moved out of staging
 	- greybus core code moved out of staging
 
 Along with that, a new filesytem has been added:
 	- extfat
 to provide support for those devices requiring that filesystem (i.e.
 transfer devices to/from windows systems or printers.)
 
 Other than that, there a number of new IIO drivers, and lots and lots
 and lots of staging driver cleanups and minor fixes as people continue
 to dig into those for easy changes.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXYIW0g8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ynJgwCgt22YQdsWRrOuJnZp3xpFq/ZSMWAAn0dAgFf5
 SlSTI2nQhbW7jjdShrPR
 =Ra09
 -----END PGP SIGNATURE-----

Merge tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver updates from Greg KH:
 "Here is the big staging/iio driver update for 5.4-rc1.

  Lots of churn here, with a few driver/filesystems moving out of
  staging finally:

     - erofs moved out of staging

     - greybus core code moved out of staging

  Along with that, a new filesytem has been added:

     - extfat

  to provide support for those devices requiring that filesystem (i.e.
  transfer devices to/from windows systems or printers)

  Other than that, there a number of new IIO drivers, and lots and lots
  and lots of staging driver cleanups and minor fixes as people continue
  to dig into those for easy changes.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (453 commits)
  Staging: gasket: Use temporaries to reduce line length.
  Staging: octeon: Avoid several usecases of strcpy
  staging: vhciq_core: replace snprintf with scnprintf
  staging: wilc1000: avoid twice IRQ handler execution for each single interrupt
  staging: wilc1000: remove unused interrupt status handling code
  staging: fbtft: make several arrays static const, makes object smaller
  staging: rtl8188eu: make two arrays static const, makes object smaller
  staging: rtl8723bs: core: Remove Macro "IS_MAC_ADDRESS_BROADCAST"
  dt-bindings: anybus-controller: move to staging/ tree
  staging: emxx_udc: remove local TRUE/FALSE definition
  staging: wilc1000: look for rtc_clk clock
  staging: dt-bindings: wilc1000: add optional rtc_clk property
  staging: nvec: make use of devm_platform_ioremap_resource
  staging: exfat: drop unused function parameter
  Staging: exfat: Avoid use of strcpy
  staging: exfat: use integer constants
  staging: exfat: cleanup spacing for casts
  staging: exfat: cleanup spacing for operators
  staging: rtl8723bs: hal: remove redundant variable n
  staging: pi433: Fix typo in documentation
  ...
2019-09-18 11:05:34 -07:00
Linus Torvalds
e444d51b14 TTY/Serial driver changes for 5.4-rc1
Even in this age, people are still making new serial port silicon,
 why...
 
 Anyway, here's the TTY and Serial driver update for 5.4-rc1.  Lots of
 changes in here for a number of embedded serial port devices that are
 being worked on because people really like to see those console logs...
 
 Other than that, nothing major here, no core tty changes that anyone
 should care about.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXYIXfw8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ymmNACeIYq7038NXGBXBj1DfN90GeGNenwAnRkjzF+6
 YwEhFRxOMglnbvDevgPU
 =E6jv
 -----END PGP SIGNATURE-----

Merge tag 'tty-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Even in this age, people are still making new serial port silicon,
  why...

  Anyway, here's the TTY and Serial driver update for 5.4-rc1. Lots of
  changes in here for a number of embedded serial port devices that are
  being worked on because people really like to see those console
  logs...

  Other than that, nothing major here, no core tty changes that anyone
  should care about.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (125 commits)
  serial: tegra: Add PIO mode support
  serial: tegra: report clk rate errors
  serial: tegra: add support to adjust baud rate
  serial: tegra: DT for Adjusted baud rates
  serial: tegra: add support to use 8 bytes trigger
  serial: tegra: set maximum num of uart ports to 8
  serial: tegra: check for FIFO mode enabled status
  dt-binding: serial: tegra: add new chips
  serial: tegra: report error to upper tty layer
  serial: tegra: flush the RX fifo on frame error
  serial: tegra: avoid reg access when clk disabled
  serial: tegra: add support to ignore read
  serial: sprd: correct the wrong sequence of arguments
  dt-bindings: serial: Convert riscv,sifive-serial to json-schema
  serial: max310x: turn off transmitter before activating AutoCTS or auto transmitter flow control
  serial: max310x: Properly set flags in AutoCTS mode
  tty: serial: fix platform_no_drv_owner.cocci warnings
  dt-bindings: serial: Document Freescale LINFlexD UART
  serial: fsl_linflexuart: Update compatible string
  tty: n_gsm: avoid recursive locking with async port hangup
  ...
2019-09-18 10:50:47 -07:00