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Author SHA1 Message Date
Linus Torvalds
22c3b1521a Microblaze patches for 4.18-rc3
- Fix architecture gpio heart beat code
 - Add new syscalls
 - Remove unused xlnx,compound handling
 - Remove platform.c
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Merge tag 'microblaze-v4.18-rc3' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze fixes from Michal Simek:

 - fix architecture gpio heart beat code

 - add new syscalls

 - remove unused xlnx,compound handling

 - remove platform.c

* tag 'microblaze-v4.18-rc3' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: consolidate GPIO reset handling
  microblaze: remove unecessary of_platform_bus_probe call
  microblaze: Add new syscalls io_pgetevents and rseq
  microblaze: Remove architecture heart beat code
  microblaze: heartbeat: fix missing prom.h include
2018-06-27 09:49:30 -07:00
Linus Torvalds
debd52a050 SCSI fixes on 20180627
Three small bug fixes (barrier elimination, memory leak on unload,
 spinlock recursion) and a technical enhancement left over from the
 merge window: the TCMU read length support is required for tape
 devices read when the length of the read is greater than the tape
 block size.
 
 Signed-off-by: James E.J. Bottomley <[email protected]>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Three small bug fixes (barrier elimination, memory leak on unload,
  spinlock recursion) and a technical enhancement left over from the
  merge window: the TCMU read length support is required for tape
  devices read when the length of the read is greater than the tape
  block size"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: scsi_debug: Fix memory leak on module unload
  scsi: qla2xxx: Spinlock recursion in qla_target
  scsi: ipr: Eliminate duplicate barriers
  scsi: target: tcmu: add read length support
2018-06-27 09:42:16 -07:00
Linus Torvalds
c92067ae06 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - the main change is a fix for my brain-dead patch to PS/2 button
   reporting for some protocols that made it in 4.17

 - there is a new driver for Spreadtum vibrator that I intended to send
   during merge window but ended up not sending the 2nd pull request.
   Given that this is a brand new driver we should not see regressions
   here

 - a fixup to Elantech PS/2 driver to avoid decoding errors on Thinkpad
   P52

 - addition of few more ACPI IDs for Silead and Elan drivers

 - RMI4 is switched to using IRQ domain code instead of rolling its own
   implementation

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: psmouse - fix button reporting for basic protocols
  Input: xpad - fix GPD Win 2 controller name
  Input: elan_i2c_smbus - fix more potential stack buffer overflows
  Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
  Input: elantech - fix V4 report decoding for module with middle key
  Input: elantech - enable middle button of touchpads on ThinkPad P52
  Input: do not assign new tracking ID when changing tool type
  Input: make input_report_slot_state() return boolean
  Input: synaptics-rmi4 - fix axis-swap behavior
  Input: synaptics-rmi4 - fix the error return code in rmi_probe_interrupts()
  Input: synaptics-rmi4 - convert irq distribution to irq_domain
  Input: silead - add MSSL0002 ACPI HID
  Input: goldfish_events - fix checkpatch warnings
  Input: add Spreadtrum vibrator driver
2018-06-27 09:16:53 -07:00
Linus Torvalds
896a349228 Merge branch 'fixes-v4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull more security subsystem fixes from James Morris:
 "Two further fixes for the keys subsystem"

* 'fixes-v4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  dh key: fix rounding up KDF output length
  certs/blacklist: fix const confusion
2018-06-27 09:13:52 -07:00
Linus Torvalds
3b41c3e28e checkpatch: remove warning for 'old' [email protected] address
It may not be the actual real stable mailing list address, but the
stable scripts to actually pick up on the traditional way to mark stable
patches.

There are also reasons to explicitly avoid using the actual mailing list
address, since security patches with embargo dates generally do want the
stable marking, but don't want tools etc to mistakenly send the patch
out to the mailing list early.

So don't warn for things that are still actively used and explicitly
supported.

Signed-off-by: Linus Torvalds <[email protected]>
2018-06-27 08:40:44 -07:00
Catalin Marinas
7838306f5a Merge branch 'perf/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux
* 'perf/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux:
  drivers/perf: xgene_pmu: Fix IOB SLOW PMU parser error
2018-06-27 16:01:05 +01:00
Katsuhiro Suzuki
86676c4685 arm64: dts: uniphier: fix widget name of headphone for LD11/LD20 boards
This patch fixes wrong name of headphone widget for receiving events
of insert/remove headphone plug from simple-card or audio-graph-card.

If we use wrong widget name then we get warning messages such as
"asoc-audio-graph-card sound: ASoC: DAPM unknown pin Headphones"
when the plug is inserted or removed from headphone jack.

Fixes: fb21a0acaa ("arm64: dts: uniphier: add sound node")
Signed-off-by: Katsuhiro Suzuki <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Olof Johansson <[email protected]>
2018-06-27 07:14:47 -07:00
Mike Snitzer
a685557fbb dm thin: handle running out of data space vs concurrent discard
Discards issued to a DM thin device can complete to userspace (via
fstrim) _before_ the metadata changes associated with the discards is
reflected in the thinp superblock (e.g. free blocks).  As such, if a
user constructs a test that loops repeatedly over these steps, block
allocation can fail due to discards not having completed yet:
1) fill thin device via filesystem file
2) remove file
3) fstrim

From initial report, here:
https://www.redhat.com/archives/dm-devel/2018-April/msg00022.html

"The root cause of this issue is that dm-thin will first remove
mapping and increase corresponding blocks' reference count to prevent
them from being reused before DISCARD bios get processed by the
underlying layers. However. increasing blocks' reference count could
also increase the nr_allocated_this_transaction in struct sm_disk
which makes smd->old_ll.nr_allocated +
smd->nr_allocated_this_transaction bigger than smd->old_ll.nr_blocks.
In this case, alloc_data_block() will never commit metadata to reset
the begin pointer of struct sm_disk, because sm_disk_get_nr_free()
always return an underflow value."

While there is room for improvement to the space-map accounting that
thinp is making use of: the reality is this test is inherently racey and
will result in the previous iteration's fstrim's discard(s) completing
vs concurrent block allocation, via dd, in the next iteration of the
loop.

No amount of space map accounting improvements will be able to allow
user's to use a block before a discard of that block has completed.

So the best we can really do is allow DM thinp to gracefully handle such
aggressive use of all the pool's data by degrading the pool into
out-of-data-space (OODS) mode.  We _should_ get that behaviour already
(if space map accounting didn't falsely cause alloc_data_block() to
believe free space was available).. but short of that we handle the
current reality that dm_pool_alloc_data_block() can return -ENOSPC.

Reported-by: Dennis Yang <[email protected]>
Cc: [email protected]
Signed-off-by: Mike Snitzer <[email protected]>
2018-06-27 08:49:46 -04:00
Keerthy
3eb1b955cd ARM: dts: da850: Fix interrups property for gpio
The intc #interrupt-cells is equal to 1. Currently gpio
node has 2 cells per IRQ which is wrong. Remove the additional
cell for each of the interrupts.

Signed-off-by: Keerthy <[email protected]>
Fixes: 2e38b946dc ("ARM: davinci: da850: add GPIO DT node")
Signed-off-by: Sekhar Nori <[email protected]>
2018-06-27 17:38:44 +05:30
Dmitry Vyukov
d79d0d8ad0 x86/mm: Clean up the printk()s in show_fault_oops()
- Remove 'nx_warning' and 'smep_warning', which are just pointless obfuscation.
- Also convert to pr_crit().

Suggested-by: Joe Perches <[email protected]>
Signed-off-by: Dmitry Vyukov <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
2018-06-27 14:08:11 +02:00
Rafael J. Wysocki
649f53a3e4 Documentation: intel_pstate: Describe hwp_dynamic_boost sysfs knob
Document the recently introduced hwp_dynamic_boost sysfs knob
allowing user space to tell intel_pstate to use iowait boosting
in the active mode with HWP enabled (to improve performance).

Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
2018-06-27 13:02:06 +02:00
Rafael J. Wysocki
9e421b8fff Documentation: admin-guide: intel_pstate: Fix sysfs path
Fix an incorrect sysfs path in the intel_pstate admin-guide
documentation.

Fixes: 33fc30b470 (cpufreq: intel_pstate: Document the current behavior and user interface)
Reported-by: Pawit Pornkitprasan <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
2018-06-27 13:02:06 +02:00
Mathieu Malaterre
9331510135 perf/core: Move inline keyword at the beginning of declaration
Fix non-fatal warning triggered during compilation with W=1:

  kernel/events/core.c:6106:1: warning: ‘inline’ is not at beginning of declaration [-Wold-style-declaration]
   static void __always_inline
   ^~~~~~

Signed-off-by: Mathieu Malaterre <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
2018-06-27 09:55:58 +02:00
Kirill A. Shutemov
b8c1e4293a x86/mm: Drop unneeded __always_inline for p4d page table helpers
This reverts the following commits:

  1ea66554d3 ("x86/mm: Mark p4d_offset() __always_inline")
  046c0dbec0 ("x86: Mark native_set_p4d() as __always_inline")

p4d_offset(), native_set_p4d() and native_p4d_clear() were marked
__always_inline in attempt to move __pgtable_l5_enabled into __initdata
section.

It was required as KASAN initialization code is a user of
USE_EARLY_PGTABLE_L5, so all pgtable_l5_enabled() translated to
__pgtable_l5_enabled there. This includes pgtable_l5_enabled() called
from inline p4d helpers.

If compiler would decided to not inline these p4d helpers, but leave
them standalone, we end up with section mismatch.

We don't need __always_inline here anymore. __pgtable_l5_enabled moved
back to be __ro_after_init. See the following commit:

  51be133515 ("Revert "x86/mm: Mark __pgtable_l5_enabled __initdata"")

Signed-off-by: Kirill A. Shutemov <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
2018-06-27 09:55:26 +02:00
Kirill A. Shutemov
cfe1957704 x86/efi: Fix efi_call_phys_epilog() with CONFIG_X86_5LEVEL=y
Open-coded page table entry checks don't work correctly when we fold the
page table level at runtime.

pgd_present() on 4-level paging machine always returns true, but
open-coded version of the check may return false-negative result and
we silently skip the rest of the loop body in efi_call_phys_epilog().

Replace open-coded checks with proper helpers.

Signed-off-by: Kirill A. Shutemov <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Baoquan He <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Matt Fleming <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected] # v4.12+
Fixes: 94133e46a0 ("x86/efi: Correct EFI identity mapping under 'efi=old_map' when KASLR is enabled")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
2018-06-27 09:52:52 +02:00
Andy Lutomirski
e8a445dea2 selftests/x86/sigreturn: Do minor cleanups
We have short names for the requested and resulting register values.
Use them instead of spelling out the whole register entry for each
case.

Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/bb3bc1f923a2f6fe7912d22a1068fe29d6033d38.1530076529.git.luto@kernel.org
Signed-off-by: Ingo Molnar <[email protected]>
2018-06-27 09:36:56 +02:00
Andy Lutomirski
ec34802056 selftests/x86/sigreturn/64: Fix spurious failures on AMD CPUs
When I wrote the sigreturn test, I didn't realize that AMD's busted
IRET behavior was different from Intel's busted IRET behavior:

On AMD CPUs, the CPU leaks the high 32 bits of the kernel stack pointer
to certain userspace contexts.  Gee, thanks.  There's very little
the kernel can do about it.  Modify the test so it passes.

Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/86e7fd3564497f657de30a36da4505799eebef01.1530076529.git.luto@kernel.org
Signed-off-by: Ingo Molnar <[email protected]>
2018-06-27 09:36:56 +02:00
Andy Lutomirski
22cd978e59 x86/entry/64/compat: Fix "x86/entry/64/compat: Preserve r8-r11 in int $0x80"
Commit:

  8bb2610bc4 ("x86/entry/64/compat: Preserve r8-r11 in int $0x80")

was busted: my original patch had a minor conflict with
some of the nospec changes, but "git apply" is very clever
and silently accepted the patch by making the same changes
to a different function in the same file.  There was obviously
a huge offset, but "git apply" for some reason doesn't feel
any need to say so.

Move the changes to the correct function.  Now the
test_syscall_vdso_32 selftests passes.

If anyone cares to observe the original problem, try applying the
patch at:

  https://lore.kernel.org/lkml/d4c4d9985fbe64f8c9e19291886453914b48caee.1523975710.git.luto@kernel.org/raw

to the kernel at 316d097c4c:

 - "git am" and "git apply" accept the patch without any complaints at all
 - "patch -p1" at least prints out a message about the huge offset.

Reported-by: [email protected]
Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Arjan van de Ven <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected] #v4.17+
Fixes: 8bb2610bc4 ("x86/entry/64/compat: Preserve r8-r11 in int $0x80")
Link: http://lkml.kernel.org/r/6012b922485401bc42676e804171ded262fc2ef2.1530078306.git.luto@kernel.org
Signed-off-by: Ingo Molnar <[email protected]>
2018-06-27 09:35:40 +02:00
Chengguang Xu
2d2595719a nfp: cast sizeof() to int when comparing with error code
sizeof() will return unsigned value so in the error check
negative error code will be always larger than sizeof().

Fixes: a0d8e02c35 ("nfp: add support for reading nffw info")

Signed-off-by: Chengguang Xu <[email protected]>
Acked-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
2018-06-27 15:36:32 +09:00
Arnd Bergmann
22db552b50 powerpc/powermac: Fix rtc read/write functions
As Mathieu pointed out, my conversion to time64_t was incorrect and
resulted in negative times to be read from the RTC. The problem is
that during the conversion from a byte array to a time64_t, the
'unsigned char' variable holding the top byte gets turned into a
negative signed 32-bit integer before being assigned to the 64-bit
variable for any times after 1972.

This changes the logic to cast to an unsigned 32-bit number first for
the Macintosh time and then convert that to the Unix time, which then
gives us a time in the documented 1904..2040 year range. I decided not
to use the longer 1970..2106 range that other drivers use, for
consistency with the literal interpretation of the register, but that
could be easily changed if we decide we want to support any Mac after
2040.

Just to be on the safe side, I'm also adding a WARN_ON that will
trigger if either the year 2040 has come and is observed by this
driver, or we run into an RTC that got set back to a pre-1970 date for
some reason (the two are indistinguishable).

For the RTC write functions, Andreas found another problem: both
pmu_request() and cuda_request() are varargs functions, so changing
the type of the arguments passed into them from 32 bit to 64 bit
breaks the API for the set_rtc_time functions. This changes it back to
32 bits.

The same code exists in arch/m68k/ and is patched in an identical way
now in a separate patch.

Fixes: 5bfd643583 ("powerpc: use time64_t in read_persistent_clock")
Reported-by: Mathieu Malaterre <[email protected]>
Reported-by: Andreas Schwab <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Tested-by: Mathieu Malaterre <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
2018-06-27 13:48:49 +10:00
David S. Miller
f3c2c5ebd4 Merge branch 'nfp-MPLS-and-shared-blocks-TC-offload-fixes'
Jakub Kicinski says:

====================
nfp: MPLS and shared blocks TC offload fixes

This series brings two fixes to TC filter/action offload code.
Pieter fixes matching MPLS packets when the match is purely on
the MPLS ethertype and none of the MPLS fields are used.
John provides a fix for offload of shared blocks.  Unfortunately,
with shared blocks there is currently no guarantee that filters
which were added by the core will be removed before block unbind.
Our simple fix is to not support offload of rules on shared blocks
at all, a revert of this fix will be send for -next once the
reoffload infrastructure lands.  The shared blocks became important
as we are trying to use them for bonding offload (managed from user
space) and lack of remove calls leads to resource leaks.

v2:
 - fix build error reported by kbuild bot due to missing
   tcf_block_shared() helper.
====================

Signed-off-by: David S. Miller <[email protected]>
2018-06-27 10:46:43 +09:00
John Hurley
951a8ee6de nfp: reject binding to shared blocks
TC shared blocks allow multiple qdiscs to be grouped together and filters
shared between them. Currently the chains of filters attached to a block
are only flushed when the block is removed. If a qdisc is removed from a
block but the block still exists, flow del messages are not passed to the
callback registered for that qdisc. For the NFP, this presents the
possibility of rules still existing in hw when they should be removed.

Prevent binding to shared blocks until the kernel can send per qdisc del
messages when block unbinds occur.

tcf_block_shared() was not used outside of the core until now, so also
add an empty implementation for builds with CONFIG_NET_CLS=n.

Fixes: 4861738775 ("net: sched: introduce shared filter blocks infrastructure")
Signed-off-by: John Hurley <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
2018-06-27 10:46:43 +09:00
Pieter Jansen van Vuuren
a64119415f nfp: flower: fix mpls ether type detection
Previously it was not possible to distinguish between mpls ether types and
other ether types. This leads to incorrect classification of offloaded
filters that match on mpls ether type. For example the following two
filters overlap:

 # tc filter add dev eth0 parent ffff: \
    protocol 0x8847 flower \
    action mirred egress redirect dev eth1

 # tc filter add dev eth0 parent ffff: \
    protocol 0x0800 flower \
    action mirred egress redirect dev eth2

The driver now correctly includes the mac_mpls layer where HW stores mpls
fields, when it detects an mpls ether type. It also sets the MPLS_Q bit to
indicate that the filter should match mpls packets.

Fixes: bb055c198d ("nfp: add mpls match offloading support")
Signed-off-by: Pieter Jansen van Vuuren <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Reviewed-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
2018-06-27 10:46:43 +09:00
Jason A. Donenfeld
7c8f4e6dc3 fib_rules: match rules based on suppress_* properties too
Two rules with different values of suppress_prefix or suppress_ifgroup
are not the same. This fixes an -EEXIST when running:

   $ ip -4 rule add table main suppress_prefixlength 0

Signed-off-by: Jason A. Donenfeld <[email protected]>
Fixes: f9d4b0c1e9 ("fib_rules: move common handling of newrule delrule msgs into fib_nl2rule")
Signed-off-by: David S. Miller <[email protected]>
2018-06-27 10:33:05 +09:00
Sowmini Varadhan
c809195f55 rds: clean up loopback rds_connections on netns deletion
The RDS core module creates rds_connections based on callbacks
from rds_loop_transport when sending/receiving packets to local
addresses.

These connections will need to be cleaned up when they are
created from a netns that is not init_net, and that netns is deleted.

Add the changes aligned with the changes from
commit ebeeb1ad9b ("rds: tcp: use rds_destroy_pending() to synchronize
netns/module teardown and rds connection/workq management") for
rds_loop_transport

Reported-and-tested-by: [email protected]
Acked-by: Santosh Shilimkar <[email protected]>
Signed-off-by: Sowmini Varadhan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
2018-06-27 10:11:03 +09:00
Dmitry Torokhov
03ae3a9caf Input: psmouse - fix button reporting for basic protocols
The commit ba667650c5 ("Input: psmouse - clean up code") was pretty
brain-dead and broke extra buttons reporting for variety of PS/2 mice:
Genius, Thinkmouse and Intellimouse Explorer. We need to actually inspect
the data coming from the device when reporting events.

Fixes: ba667650c5 ("Input: psmouse - clean up code")
Reported-by: Jiri Slaby <[email protected]>
Cc: [email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
2018-06-26 16:21:45 -07:00
Alex Vesker
d412c31dae net/mlx5: Fix command interface race in polling mode
The command interface can work in two modes: Events and Polling.
In the general case, each time we invoke a command, a work is
queued to handle it.

When working in events, the interrupt handler completes the
command execution. On the other hand, when working in polling
mode, the work itself completes it.

Due to a bug in the work handler, a command could have been
completed by the interrupt handler, while the work handler
hasn't finished yet, causing the it to complete once again
if the command interface mode was changed from Events to
polling after the interrupt handler was called.

mlx5_unload_one()
        mlx5_stop_eqs()
                // Destroy the EQ before cmd EQ
                ...cmd_work_handler()
                        write_doorbell()
                        --> EVENT_TYPE_CMD
                                mlx5_cmd_comp_handler() // First free
                                        free_ent(cmd, ent->idx)
                                        complete(&ent->done)

        <-- mlx5_stop_eqs //cmd was complete
                // move to polling before destroying the last cmd EQ
                mlx5_cmd_use_polling()
                        cmd->mode = POLL;

                --> cmd_work_handler (continues)
                        if (cmd->mode == POLL)
                                mlx5_cmd_comp_handler() // Double free

The solution is to store the cmd->mode before writing the doorbell.

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Alex Vesker <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
2018-06-26 15:26:34 -07:00
Alex Vesker
603b7bcff8 net/mlx5: Fix incorrect raw command length parsing
The NULL character was not set correctly for the string containing
the command length, this caused failures reading the output of the
command due to a random length. The fix is to initialize the output
length string.

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Alex Vesker <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
2018-06-26 15:26:34 -07:00
Shay Agroskin
d14fcb8d87 net/mlx5: Fix wrong size allocation for QoS ETC TC regitster
The driver allocates wrong size (due to wrong struct name) when issuing
a query/set request to NIC's register.

Fixes: d8880795da ("net/mlx5e: Implement DCBNL IEEE max rate")
Signed-off-by: Shay Agroskin <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
2018-06-26 15:26:33 -07:00
Eli Cohen
f811980444 net/mlx5: Fix required capability for manipulating MPFS
Manipulating of the MPFS requires eswitch manager capabilities.

Fixes: eeb66cdb68 ('net/mlx5: Separate between E-Switch and MPFS')
Signed-off-by: Eli Cohen <[email protected]>
Reviewed-by: Or Gerlitz <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
2018-06-26 15:26:32 -07:00
Eli Cohen
a8d70a054a net/mlx5: E-Switch, Disallow vlan/spoofcheck setup if not being esw manager
In smartnic env, if the host (PF) driver is not an e-switch manager, we
are not allowed to apply eswitch ports setups such as vlan (VST),
spoof-checks, min/max rate or state.

Make sure we are eswitch manager when coming to issue these callbacks
and err otherwise.

Also fix the definition of ESW_ALLOWED to rely on eswitch_manager
capability and on the vport_group_manger.

Operations on the VF nic vport context, such as setting a mac or reading
the vport counters are allowed to the PF in this scheme.

The modify nic vport guid code was modified to omit checking the
nic_vport_node_guid_modify eswitch capability.
The reason for doing so is that modifying node guid requires vport group
manager capability, and there's no need to check further capabilities.

1. set_vf_vlan     - disallowed
2. set_vf_spoofchk - disallowed
3. set_vf_mac      - allowed
4. get_vf_config   - allowed
5. set_vf_trust    - disallowed
6. set_vf_rate     - disallowed
7. get_vf_stat     - allowed
8. set_vf_link_state - disallowed

Fixes: f942380c12 ('net/mlx5: E-Switch, Vport ingress/egress ACLs rules for spoofchk')
Signed-off-by: Eli Cohen <[email protected]>
Reviewed-by: Or Gerlitz <[email protected]>
Tested-by: Or Gerlitz <[email protected]>
2018-06-26 15:26:31 -07:00
Or Gerlitz
aff2252a2a IB/mlx5: Avoid dealing with vport representors if not being e-switch manager
In smartnic env, the host (PF) driver might not be an e-switch
manager, hence the switchdev mode representors are running on
the embedded cpu (EC) and not at the host.

As such, we should avoid dealing with vport representors if
not being esw manager.

Fixes: b5ca15ad7e ('IB/mlx5: Add proper representors support')
Signed-off-by: Or Gerlitz <[email protected]>
Reviewed-by: Eli Cohen <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
2018-06-26 15:26:30 -07:00
Or Gerlitz
733d3e5497 net/mlx5e: Avoid dealing with vport representors if not being e-switch manager
In smartnic env, the host (PF) driver might not be an e-switch
manager, hence the switchdev mode representors are running on
the embedded cpu (EC) and not at the host.

As such, we should avoid dealing with vport representors if
not being esw manager.

While here, make sure to disallow eswitch switchdev related
setups through devlink if we are not esw managers.

Fixes: cb67b83292 ('net/mlx5e: Introduce SRIOV VF representors')
Signed-off-by: Or Gerlitz <[email protected]>
Reviewed-by: Eli Cohen <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
2018-06-26 15:26:30 -07:00
Or Gerlitz
0efc856249 net/mlx5: E-Switch, Avoid setup attempt if not being e-switch manager
In smartnic env, the host (PF) driver might not be an e-switch
manager, hence the FW will err on driver attempts to deal with
setting/unsetting the eswitch and as a result the overall setup
of sriov will fail.

Fix that by avoiding the operation if e-switch management is not
allowed for this driver instance. While here, move to use the
correct name for the esw manager capability name.

Fixes: 81848731ff ('net/mlx5: E-Switch, Add SR-IOV (FDB) support')
Signed-off-by: Or Gerlitz <[email protected]>
Reported-by: Guy Kushnir <[email protected]>
Reviewed-by: Eli Cohen <[email protected]>
Tested-by: Eli Cohen <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
2018-06-26 15:26:29 -07:00
Or Gerlitz
8ffd569aaa net/mlx5e: Don't attempt to dereference the ppriv struct if not being eswitch manager
The check for cpu hit statistics was not returning immediate false for
any non vport rep netdev and hence we crashed (say on mlx5 probed VFs) if
user-space tool was calling into any possible netdev in the system.

Fix that by doing a proper check before dereferencing.

Fixes: 1d447a3914 ('net/mlx5e: Extendable vport representor netdev private data')
Signed-off-by: Or Gerlitz <[email protected]>
Reported-by: Eli Cohen <[email protected]>
Reviewed-by: Eli Cohen <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
2018-06-26 15:26:28 -07:00
Lorenzo Pieralisi
925d31668d PCI: controller: Move PCI_DOMAINS selection to arch Kconfig
Commit 51bc085d64 ("PCI: Improve host drivers compile test coverage")
added configuration options to allow PCI host controller drivers to be
compile tested on all architectures.

Some host controller drivers (eg PCIE_ALTERA) config entries select the
PCI_DOMAINS config option to enable PCI domains management in the kernel.
Now that host controller drivers can be compiled on all architectures, this
triggers build regressions on arches that do not implement the PCI_DOMAINS
required API (ie pci_domain_nr()):

  drivers/ata/pata_ali.c: In function 'ali_init_chipset':
  drivers/ata/pata_ali.c:469:38: error: implicit declaration of function 'pci_domain_nr'; did you mean 'pci_iomap_wc'?

Furthemore, some software configurations (ie Jailhouse) require a
PCI_DOMAINS enabled kernel to configure multiple host controllers without
having an explicit dependency on the ARM platform on which they run.

Make PCI_DOMAINS a visible configuration option on ARM so that software
configurations that need it can manually select it and move the PCI_DOMAINS
selection from PCI controllers configuration file to ARM sub-arch config
entries that currently require it, fixing the issue.

Fixes: 51bc085d64 ("PCI: Improve host drivers compile test coverage")
Link: https://lkml.kernel.org/r/[email protected]
Reported-by: Guenter Roeck <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Jan Kiszka <[email protected]>
Acked-by: Ley Foon Tan <[email protected]>
Acked-by: Rob Herring <[email protected]>
Cc: Scott Branden <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Russell King <[email protected]>
Cc: Guenter Roeck <[email protected]>
2018-06-26 15:37:37 -05:00
Alan Douglas
68bb22e9d5 PCI: Initialize endpoint library before controllers
The endpoint library must be initialized before its users, which are in
drivers/pci/controllers.  The endpoint initialization currently depends on
link order.

This corrects a kernel crash when loading the Cadence EP driver, since it
calls devm_pci_epc_create() and this is only valid once the endpoint
library has been initialized.

Fixes: 6e0832fa43 ("PCI: Collect all native drivers under drivers/pci/controller/")
Signed-off-by: Alan Douglas <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
2018-06-26 15:37:37 -05:00
Keith Busch
15bfd21fbc block: Fix transfer when chunk sectors exceeds max
A device may have boundary restrictions where the number of sectors
between boundaries exceeds its max transfer size. In this case, we need
to cap the max size to the smaller of the two limits.

Reported-by: Jitendra Bhivare <[email protected]>
Tested-by: Jitendra Bhivare <[email protected]>
Cc: <[email protected]>
Reviewed-by: Martin K. Petersen <[email protected]>
Signed-off-by: Keith Busch <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
2018-06-26 12:18:27 -06:00
Olof Johansson
fd28b4b5fb Qualcomm Fixes for v4.18-rc2
* Fix compiler warnings for cmd-db driver
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Merge tag 'qcom-fixes-for-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into fixes

Qualcomm Fixes for v4.18-rc2

* Fix compiler warnings for cmd-db driver

* tag 'qcom-fixes-for-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  qcom: cmd-db: enforce CONFIG_OF_RESERVED_MEM dependency

Signed-off-by: Olof Johansson <[email protected]>
2018-06-26 10:42:31 -07:00
Thor Thayer
975ba94c2c ARM: dts: Fix SPI node for Arria10
Remove the unused bus-num node and change num-chipselect
to num-cs to match SPI bindings.

Cc: [email protected]
Fixes: f2d6f8f817 ("ARM: dts: socfpga: Add SPI Master1 for Arria10 SR chip")
Signed-off-by: Thor Thayer <[email protected]>
Signed-off-by: Dinh Nguyen <[email protected]>
Signed-off-by: Olof Johansson <[email protected]>
2018-06-26 10:35:18 -07:00
Thor Thayer
4595299c5e arm64: dts: stratix10: Fix SPI nodes for Stratix10
Remove the unused bus-num node and change num-chipselect
to num-cs to match SPI bindings.

Cc: [email protected]
Fixes: 78cd6a9d8e ("arm64: dts: Add base stratix 10 dtsi")
Signed-off-by: Thor Thayer <[email protected]>
Signed-off-by: Dinh Nguyen <[email protected]>
Signed-off-by: Olof Johansson <[email protected]>
2018-06-26 10:35:17 -07:00
Eric Biggers
3619dec510 dh key: fix rounding up KDF output length
Commit 383203eff7 ("dh key: get rid of stack allocated array") changed
kdf_ctr() to assume that the length of key material to derive is a
multiple of the digest size.  The length was supposed to be rounded up
accordingly.  However, the round_up() macro was used which only gives
the correct result on power-of-2 arguments, whereas not all hash
algorithms have power-of-2 digest sizes.  In some cases this resulted in
a write past the end of the 'outbuf' buffer.

Fix it by switching to roundup(), which works for non-power-of-2 inputs.

Reported-by: [email protected]
Reported-by: [email protected]
Reported-by: [email protected]
Reported-by: [email protected]
Fixes: 383203eff7 ("dh key: get rid of stack allocated array")
Signed-off-by: Eric Biggers <[email protected]>
Acked-by: Kees Cook <[email protected]>
Acked-by: Tycho Andersen <[email protected]>
Signed-off-by: James Morris <[email protected]>
2018-06-26 09:43:05 -07:00
Nick Desaulniers
2e20ce4a66 certs/blacklist: fix const confusion
Fixes commit 2be04df566 ("certs/blacklist_nohashes.c: fix const confusion
in certs blacklist")

Signed-off-by: Nick Desaulniers <[email protected]>
Signed-off-by: David Howells <[email protected]>
Signed-off-by: James Morris <[email protected]>
2018-06-26 09:43:03 -07:00
Yan, Zheng
8b8f53af1e ceph: fix dentry leak in splice_dentry()
In any case, d_splice_alias() does not drop reference of original
dentry.

Signed-off-by: "Yan, Zheng" <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Ilya Dryomov <[email protected]>
2018-06-26 18:42:44 +02:00
Florian Westphal
b36e4523d4 netfilter: nf_conncount: fix garbage collection confirm race
Yi-Hung Wei and Justin Pettit found a race in the garbage collection scheme
used by nf_conncount.

When doing list walk, we lookup the tuple in the conntrack table.
If the lookup fails we remove this tuple from our list because
the conntrack entry is gone.

This is the common cause, but turns out its not the only one.
The list entry could have been created just before by another cpu, i.e. the
conntrack entry might not yet have been inserted into the global hash.

The avoid this, we introduce a timestamp and the owning cpu.
If the entry appears to be stale, evict only if:
 1. The current cpu is the one that added the entry, or,
 2. The timestamp is older than two jiffies

The second constraint allows GC to be taken over by other
cpu too (e.g. because a cpu was offlined or napi got moved to another
cpu).

We can't pretend the 'doubtful' entry wasn't in our list.
Instead, when we don't find an entry indicate via IS_ERR
that entry was removed ('did not exist' or withheld
('might-be-unconfirmed').

This most likely also fixes a xt_connlimit imbalance earlier reported by
Dmitry Andrianov.

Cc: Dmitry Andrianov <[email protected]>
Reported-by: Justin Pettit <[email protected]>
Reported-by: Yi-Hung Wei <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Acked-by: Yi-Hung Wei <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
2018-06-26 18:28:57 +02:00
Linus Torvalds
813835028e Merge branch 'fixes-v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem fixes from James Morris:

 - Smack: fix a regression caused by 1bbc55131e

 - X.509: fix a (usually un-seen) bug in RSA signature parsing

* 'fixes-v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  X.509: unpack RSA signatureValue field from BIT STRING
  Smack: Mark inode instant in smack_task_to_inode
2018-06-26 08:44:15 -07:00
Linus Torvalds
84bfed40fc for-4.18-rc1-tag
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Merge tag 'for-4.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "Two regression fixes and an incorrect error value propagation fix from
  'rename exchange'"

* tag 'for-4.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Btrfs: fix return value on rename exchange failure
  btrfs: fix invalid-free in btrfs_extent_same
  Btrfs: fix physical offset reported by fiemap for inline extents
2018-06-26 08:41:54 -07:00
Jann Horn
ce00bf07cc netfilter: nf_log: don't hold nf_log_mutex during user access
The old code would indefinitely block other users of nf_log_mutex if
a userspace access in proc_dostring() blocked e.g. due to a userfaultfd
region. Fix it by moving proc_dostring() out of the locked region.

This is a followup to commit 266d07cb1c ("netfilter: nf_log: fix
sleeping function called from invalid context"), which changed this code
from using rcu_read_lock() to taking nf_log_mutex.

Fixes: 266d07cb1c ("netfilter: nf_log: fix sleeping function calle[...]")
Signed-off-by: Jann Horn <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
2018-06-26 16:48:40 +02:00
Jann Horn
dffd22aed2 netfilter: nf_log: fix uninit read in nf_log_proc_dostring
When proc_dostring() is called with a non-zero offset in strict mode, it
doesn't just write to the ->data buffer, it also reads. Make sure it
doesn't read uninitialized data.

Fixes: c6ac37d8d8 ("netfilter: nf_log: fix error on write NONE to [...]")
Signed-off-by: Jann Horn <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
2018-06-26 16:48:23 +02:00
Adam Ford
1b6fe9798a ARM: davinci: board-da850-evm: fix WP pin polarity for MMC/SD
When booting from MMC/SD in rw mode on DA850 EVM, the system
crashes because the write protect pin should be active high
and not active low. This patch fixes the polarity of the WP pin.

Fixes: bdf0e8364f ("ARM: davinci: da850-evm: use gpio descriptor for mmc pins")
Signed-off-by: Adam Ford <[email protected]>
Signed-off-by: Sekhar Nori <[email protected]>
2018-06-26 20:01:29 +05:30