Commit Graph

872745 Commits

Author SHA1 Message Date
Toke Høiland-Jørgensen 05679ca6fe xdp: Prevent overflow in devmap_hash cost calculation for 32-bit builds
Tetsuo pointed out that without an explicit cast, the cost calculation for
devmap_hash type maps could overflow on 32-bit builds. This adds the
missing cast.

Fixes: 6f9d451ab1 ("xdp: Add devmap_hash map type for looking up devices by hashed index")
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20191017105702.2807093-1-toke@redhat.com
2019-10-18 16:18:42 -07:00
Linus Torvalds b9959c7a34 filldir[64]: remove WARN_ON_ONCE() for bad directory entries
This was always meant to be a temporary thing, just for testing and to
see if it actually ever triggered.

The only thing that reported it was syzbot doing disk image fuzzing, and
then that warning is expected.  So let's just remove it before -rc4,
because the extra sanity testing should probably go to -stable, but we
don't want the warning to do so.

Reported-by: syzbot+3031f712c7ad5dd4d926@syzkaller.appspotmail.com
Fixes: 8a23eb804c ("Make filldir[64]() verify the directory entry filename is valid")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-18 18:41:16 -04:00
Linus Torvalds 6b95cf9b8b A future-proofing decoding fix from Jeff intended for stable and
a patch for a mostly benign race from Dongsheng.
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Merge tag 'ceph-for-5.4-rc4' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A future-proofing decoding fix from Jeff intended for stable and a
  patch for a mostly benign race from Dongsheng"

* tag 'ceph-for-5.4-rc4' of git://github.com/ceph/ceph-client:
  rbd: cancel lock_dwork if the wait is interrupted
  ceph: just skip unrecognized info in ceph_reply_info_extra
2019-10-18 18:30:09 -04:00
Linus Torvalds fb8527e5c1 - Fix DM snapshot deadlock that can occur due to COW throttling
preventing locks from being released.
 
 - Fix DM cache's GFP_NOWAIT allocation failure error paths by switching
   to GFP_NOIO.
 
 - Make __hash_find() static in the DM clone target.
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Merge tag 'for-5.4/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Fix DM snapshot deadlock that can occur due to COW throttling
   preventing locks from being released.

 - Fix DM cache's GFP_NOWAIT allocation failure error paths by switching
   to GFP_NOIO.

 - Make __hash_find() static in the DM clone target.

* tag 'for-5.4/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache: fix bugs when a GFP_NOWAIT allocation fails
  dm snapshot: rework COW throttling to fix deadlock
  dm snapshot: introduce account_start_copy() and account_end_copy()
  dm clone: Make __hash_find static
2019-10-18 18:26:07 -04:00
Linus Torvalds 90105ae1ee IOMMU Fixes for Linux v5.4-rc3:
Including:
 
 	- Fixes for page-table issues on Mali GPUs
 
 	- Missing free in an error path for ARM-SMMU
 
 	- PASID decoding in the AMD IOMMU Event log code
 
 	- Another update for the locking fixes in the AMD IOMMU driver
 
 	- Reduce the calls to platform_get_irq() in the IPMMU-VMSA and
 	  Rockchip IOMMUs to get rid of the warning message added to this
 	  function recently
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Merge tag 'iommu-fixes-v5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Fixes for page-table issues on Mali GPUs

 - Missing free in an error path for ARM-SMMU

 - PASID decoding in the AMD IOMMU Event log code

 - Another update for the locking fixes in the AMD IOMMU driver

 - Reduce the calls to platform_get_irq() in the IPMMU-VMSA and Rockchip
   IOMMUs to get rid of the warning message added to this function
   recently

* tag 'iommu-fixes-v5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Check PM_LEVEL_SIZE() condition in locked section
  iommu/amd: Fix incorrect PASID decoding from event log
  iommu/ipmmu-vmsa: Only call platform_get_irq() when interrupt is mandatory
  iommu/rockchip: Don't use platform_get_irq to implicitly count irqs
  iommu/io-pgtable-arm: Support all Mali configurations
  iommu/io-pgtable-arm: Correct Mali attributes
  iommu/arm-smmu: Free context bitmap in the err path of arm_smmu_init_domain_context
2019-10-18 18:23:16 -04:00
Linus Torvalds 8eb4b3b0dd copy-struct-from-user-v5.4-rc4
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Merge tag 'copy-struct-from-user-v5.4-rc4' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux

Pull usercopy test fixlets from Christian Brauner:
 "This contains two improvements for the copy_struct_from_user() tests:

   - a coding style change to get rid of the ugly "if ((ret |= test()))"
     pointed out when pulling the original patchset.

   - avoid a soft lockups when running the usercopy tests on machines
     with large page sizes by scanning only a 1024 byte region"

* tag 'copy-struct-from-user-v5.4-rc4' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux:
  usercopy: Avoid soft lockups in test_check_nonzero_user()
  lib: test_user_copy: style cleanup
2019-10-18 18:19:04 -04:00
Avri Altman 74e5e468b6 scsi: ufs-bsg: Wake the device before sending raw upiu commands
The scsi async probe process is calling blk_pm_runtime_init for each lun,
and then those request queues are monitored by the block layer pm
engine (blk-pm.c).  This is however, not the case for scsi-passthrough
queues, created by bsg_setup_queue().

So the ufs-bsg driver might send various commands, disregarding the pm
status of the device. This is wrong, regardless if its request queue is
pm-aware or not.

Fixes: df032bf27a (scsi: ufs: Add a bsg endpoint that supports UPIUs)
Link: https://lore.kernel.org/r/1570696267-8487-1-git-send-email-avri.altman@wdc.com
Reported-by: Yuliy Izrailov <yuliy.izrailov@wdc.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-18 18:02:16 -04:00
Daniel Wagner 535fb49e73 scsi: lpfc: Check queue pointer before use
The queue pointer might not be valid. The rest of the code checks the
pointer before accessing it. lpfc_sli4_process_missed_mbox_completions is
the only place where the check is missing.

Fixes: 657add4e5e ("scsi: lpfc: Fix poor use of hardware queues if fewer irq vectors")
Cc: James Smart <jsmart2021@gmail.com>
Link: https://lore.kernel.org/r/20191018162111.8798-1-dwagner@suse.de
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-18 17:59:27 -04:00
Vincenzo Frascino 8a1bef4193
mips: vdso: Fix __arch_get_hw_counter()
On some MIPS variants (e.g. MIPS r1), vDSO clock_mode is set to
VDSO_CLOCK_NONE.

When VDSO_CLOCK_NONE is set the expected kernel behavior is to fallback
on syscalls. To do that the generic vDSO library expects UULONG_MAX as
return value of __arch_get_hw_counter().

Fix __arch_get_hw_counter() on MIPS defining a __VDSO_USE_SYSCALL case
that addressed the described scenario.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Tested-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org
2019-10-18 14:29:16 -07:00
Paul Burton 0ad8f7aa9f
MAINTAINERS: Use @kernel.org address for Paul Burton
Switch to using my paulburton@kernel.org email address in order to avoid
subject mangling that's being imposed on my previous address.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-kernel@vger.kernel.org
2019-10-18 14:27:19 -07:00
Hannes Reinecke 66cf50e65b scsi: qla2xxx: fixup incorrect usage of host_byte
DRIVER_ERROR is a a driver byte setting, not a host byte.  The qla2xxx
driver should rather return DID_ERROR here to be in line with the other
drivers.

Link: https://lore.kernel.org/r/20191018140458.108278-1-hare@suse.de
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-18 17:25:19 -04:00
Jiri Benc 11875ba7f2 selftests/bpf: More compatible nc options in test_tc_edt
Out of the three nc implementations widely in use, at least two (BSD netcat
and nmap-ncat) do not support -l combined with -s. Modify the nc invocation
to be accepted by all of them.

Fixes: 7df5e3db8f ("selftests: bpf: tc-bpf flow shaping with EDT")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Peter Oskolkov <posk@google.com>
Link: https://lore.kernel.org/bpf/f5bf07dccd8b552a76c84d49e80b86c5aa071122.1571400024.git.jbenc@redhat.com
2019-10-18 22:33:57 +02:00
Navid Emamdoost c7ed6d0183 net/mlx5: fix memory leak in mlx5_fw_fatal_reporter_dump
In mlx5_fw_fatal_reporter_dump if mlx5_crdump_collect fails the
allocated memory for cr_data must be released otherwise there will be
memory leak. To fix this, this commit changes the return instruction
into goto error handling.

Fixes: 9b1f298236 ("net/mlx5: Add support for FW fatal reporter dump")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:55 -07:00
Navid Emamdoost c8c2a057fd net/mlx5: prevent memory leak in mlx5_fpga_conn_create_cq
In mlx5_fpga_conn_create_cq if mlx5_vector2eqn fails the allocated
memory should be released.

Fixes: 537a505741 ("net/mlx5: FPGA, Add high-speed connection routines")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:54 -07:00
Tariq Toukan 61ea02d2c1 net/mlx5e: TX, Fix consumer index of error cqe dump
The completion queue consumer index increments upon a call to
mlx5_cqwq_pop().
When dumping an error CQE, the index is already incremented.
Decrease one for the print command.

Fixes: 16cc14d817 ("net/mlx5e: Dump xmit error completions")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:54 -07:00
Tariq Toukan 46a3ea9807 net/mlx5e: kTLS, Enhance TX resync flow
Once the kTLS TX resync function is called, it used to return
a binary value, for success or failure.

However, in case the TLS SKB is a retransmission of the connection
handshake, it initiates the resync flow (as the tcp seq check holds),
while regular packet handle is expected.

In this patch, we identify this case and skip the resync operation
accordingly.

Counters:
- Add a counter (tls_skip_no_sync_data) to monitor this.
- Bump the dump counters up as they are used more frequently.
- Add a missing counter descriptor declaration for tls_resync_bytes
  in sq_stats_desc.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:54 -07:00
Tariq Toukan af11a7a424 net/mlx5e: kTLS, Save a copy of the crypto info
Do not assume the crypto info is accessible during the
connection lifetime. Save a copy of it in the private
TX context.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:53 -07:00
Tariq Toukan ecdc65a3ec net/mlx5e: kTLS, Remove unneeded cipher type checks
Cipher type is checked upon connection addition.
No need to recheck it per every TX resync invocation.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:53 -07:00
Tariq Toukan 84d1bb2b13 net/mlx5e: kTLS, Limit DUMP wqe size
HW expects the data size in DUMP WQEs to be up to MTU.
Make sure they are in range.

We elevate the frag page refcount by 'n-1', in addition to the
one obtained in tx_sync_info_get(), having an overall of 'n'
references. We bulk increments by using a single page_ref_add()
command, to optimize perfermance.
The refcounts are released one by one, by the corresponding completions.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:53 -07:00
Tariq Toukan 700ec49742 net/mlx5e: kTLS, Fix missing SQ edge fill
Before posting the context params WQEs, make sure there is enough
contiguous room for them, and fill frag edge if needed.

When posting only a nop, no need for room check, as it needs a single
WQEBB, meaning no contiguity issue.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:53 -07:00
Tariq Toukan b61b24bd13 net/mlx5e: kTLS, Fix page refcnt leak in TX resync error flow
All references for frag pages that are obtained in tx_sync_info_get()
should be released.
Release usually occurs in the corresponding CQE of the WQE.
In error flows, not all fragments have a WQE posted for them, hence
no matching CQE will be generated.
For these pages, release the reference in the error flow.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:52 -07:00
Tariq Toukan 310d9b9d37 net/mlx5e: kTLS, Save by-value copy of the record frags
Access the record fragments only under the TLS ctx lock.
In the resync flow, save a copy of them to be used when
preparing and posting the required DUMP WQEs.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:52 -07:00
Tariq Toukan f45da3716f net/mlx5e: kTLS, Save only the frag page to release at completion
In TX resync flow where DUMP WQEs are posted, keep a pointer to
the fragment page to unref it upon completion, instead of saving
the whole fragment.

In addition, move it the end of the arguments list in tx_fill_wi().

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:52 -07:00
Tariq Toukan 9b1fef2f23 net/mlx5e: kTLS, Size of a Dump WQE is fixed
No Eth segment, so no dynamic inline headers.
The size of a Dump WQE is fixed, use constants and remove
unnecessary checks.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:51 -07:00
Tariq Toukan 2c55936138 net/mlx5e: kTLS, Release reference on DUMPed fragments in shutdown flow
A call to kTLS completion handler was missing in the TXQSQ release
flow. Add it.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:51 -07:00
Tariq Toukan 500f36a485 net/mlx5e: Tx, Zero-memset WQE info struct upon update
Not all fields of WQE info are being written in the function,
having some leftovers from previous rounds.
Zero-memset it upon update.

Particularly, not nullifying the wi->resync_dump_frag field
will cause double free of the kTLS DUMPed frags.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:51 -07:00
Tariq Toukan 0c258dec8d net/mlx5e: Tx, Fix assumption of single WQEBB of NOP in cleanup flow
Cited patch removed the assumption only in datapath.
Here we remove it also form control/cleanup flow.

Fixes: 9ab0233728 ("net/mlx5e: Tx, Don't implicitly assume SKB-less wqe has one WQEBB")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-10-18 12:11:51 -07:00
Roger Quadros 9794476942 usb: cdns3: Error out if USB_DR_MODE_UNKNOWN in cdns3_core_init_role()
USB_DR_MODE_UNKNOWN should be treated as error as it is done in
cdns3_drd_update_mode().

Fixes: 02ffc26df9 ("usb: cdns3: fix cdns3_core_init_role()")
Signed-off-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20191017075801.8734-1-rogerq@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-18 12:00:15 -07:00
Stefan Wahren 626c45d223 ARM: dts: bcm2837-rpi-cm3: Avoid leds-gpio probing issue
bcm2835-rpi.dtsi defines the behavior of the ACT LED, which is available
on all Raspberry Pi boards. But there is no driver for this particual
GPIO on CM3 in mainline yet, so this node was left incomplete without
the actual GPIO definition. Since commit 025bf37725 ("gpio: Fix return
value mismatch of function gpiod_get_from_of_node()") this causing probe
issues of the leds-gpio driver for users of the CM3 dtsi file.

  leds-gpio: probe of leds failed with error -2

Until we have the necessary GPIO driver hide the ACT node for CM3
to avoid this.

Reported-by: Fredrik Yhlen <fredrik.yhlen@endian.se>
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Fixes: a54fe8a6cf ("ARM: dts: add Raspberry Pi Compute Module 3 and IO board")
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2019-10-18 11:59:39 -07:00
Johan Hovold 7a6f22d747 USB: ldusb: fix read info leaks
Fix broken read implementation, which could be used to trigger slab info
leaks.

The driver failed to check if the custom ring buffer was still empty
when waking up after having waited for more data. This would happen on
every interrupt-in completion, even if no data had been added to the
ring buffer (e.g. on disconnect events).

Due to missing sanity checks and uninitialised (kmalloced) ring-buffer
entries, this meant that huge slab info leaks could easily be triggered.

Note that the empty-buffer check after wakeup is enough to fix the info
leak on disconnect, but let's clear the buffer on allocation and add a
sanity check to read() to prevent further leaks.

Fixes: 2824bd250f ("[PATCH] USB: add ldusb driver")
Cc: stable <stable@vger.kernel.org>     # 2.6.13
Reported-by: syzbot+6fe95b826644f7f12b0b@syzkaller.appspotmail.com
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191018151955.25135-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-18 11:56:22 -07:00
Parav Pandit 777a8b32bc IB/core: Use rdma_read_gid_l2_fields to compare GID L2 fields
Current code tries to derive VLAN ID and compares it with GID
attribute for matching entry. This raw search fails on macvlan
netdevice as its not a VLAN device, but its an upper device of a VLAN
netdevice.

Due to this limitation, incoming QP1 packets fail to match in the
GID table. Such packets are dropped.

Hence, to support it, use the existing rdma_read_gid_l2_fields()
that takes care of diffferent device types.

Fixes: dbf727de74 ("IB/core: Use GID table in AH creation and dmac resolution")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20191002121750.17313-1-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-10-18 14:55:33 -04:00
Greg Kroah-Hartman ec83e4c9af USB-serial fixes for 5.4-rc4
Here's a fix for a long-standing locking bug in ti_usb_3410_5052 and
 related clean up.
 
 Both have been in linux-next with no reported issues.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-5.4-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for 5.4-rc4

Here's a fix for a long-standing locking bug in ti_usb_3410_5052 and
related clean up.

Both have been in linux-next with no reported issues.

Signed-off-by: Johan Hovold <johan@kernel.org>

* tag 'usb-serial-5.4-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: ti_usb_3410_5052: clean up serial data access
  USB: serial: ti_usb_3410_5052: fix port-close races
2019-10-18 11:52:33 -07:00
Kamal Heib b806c94ee4 RDMA/qedr: Fix reported firmware version
Remove spaces from the reported firmware version string.
Actual value:
$ cat /sys/class/infiniband/qedr0/fw_ver
8. 37. 7. 0

Expected value:
$ cat /sys/class/infiniband/qedr0/fw_ver
8.37.7.0

Fixes: ec72fce401 ("qedr: Add support for RoCE HW init")
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Link: https://lore.kernel.org/r/20191007210730.7173-1-kamalheib1@gmail.com
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-10-18 14:50:14 -04:00
Krishnamraju Eraparaju e17fa5c95e RDMA/siw: free siw_base_qp in kref release routine
As siw_free_qp() is the last routine to access 'siw_base_qp' structure,
freeing this structure early in siw_destroy_qp() could cause
touch-after-free issue.
Hence, moved kfree(siw_base_qp) from siw_destroy_qp() to siw_free_qp().

Fixes: 303ae1cdfd ("rdma/siw: application interface")
Signed-off-by: Krishnamraju Eraparaju <krishna2@chelsio.com>
Link: https://lore.kernel.org/r/20191007104229.29412-1-krishna2@chelsio.com
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-10-18 14:49:01 -04:00
Zhengjun Xing 9fa8c9c647 tracing: Fix "gfp_t" format for synthetic events
In the format of synthetic events, the "gfp_t" is shown as "signed:1",
but in fact the "gfp_t" is "unsigned", should be shown as "signed:0".

The issue can be reproduced by the following commands:

echo 'memlatency u64 lat; unsigned int order; gfp_t gfp_flags; int migratetype' > /sys/kernel/debug/tracing/synthetic_events
cat  /sys/kernel/debug/tracing/events/synthetic/memlatency/format

name: memlatency
ID: 2233
format:
        field:unsigned short common_type;       offset:0;       size:2; signed:0;
        field:unsigned char common_flags;       offset:2;       size:1; signed:0;
        field:unsigned char common_preempt_count;       offset:3;       size:1; signed:0;
        field:int common_pid;   offset:4;       size:4; signed:1;

        field:u64 lat;  offset:8;       size:8; signed:0;
        field:unsigned int order;       offset:16;      size:4; signed:0;
        field:gfp_t gfp_flags;  offset:24;      size:4; signed:1;
        field:int migratetype;  offset:32;      size:4; signed:1;

print fmt: "lat=%llu, order=%u, gfp_flags=%x, migratetype=%d", REC->lat, REC->order, REC->gfp_flags, REC->migratetype

Link: http://lkml.kernel.org/r/20191018012034.6404-1-zhengjun.xing@linux.intel.com

Reviewed-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-10-18 14:42:53 -04:00
Krishnamraju Eraparaju 54102dd410 RDMA/iwcm: move iw_rem_ref() calls out of spinlock
kref release routines usually perform memory release operations,
hence, they should not be called with spinlocks held.
one such case is: SIW kref release routine siw_free_qp(), which
can sleep via vfree() while freeing queue memory.

Hence, all iw_rem_ref() calls in IWCM are moved out of spinlocks.

Fixes: 922a8e9fb2 ("RDMA: iWARP Connection Manager.")
Signed-off-by: Krishnamraju Eraparaju <krishna2@chelsio.com>
Reviewed-by: Bernard Metzler <bmt@zurich.ibm.com>
Link: https://lore.kernel.org/r/20191007102627.12568-1-krishna2@chelsio.com
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-10-18 14:40:01 -04:00
Potnuri Bharat Teja 612e0486ad iw_cxgb4: fix ECN check on the passive accept
pass_accept_req() is using the same skb for handling accept request and
sending accept reply to HW. Here req and rpl structures are pointing to
same skb->data which is over written by INIT_TP_WR() and leads to
accessing corrupt req fields in accept_cr() while checking for ECN flags.
Reordered code in accept_cr() to fetch correct req fields.

Fixes: 92e7ae7172 ("iw_cxgb4: Choose appropriate hw mtu index and ISS for iWARP connections")
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Link: https://lore.kernel.org/r/20191003104353.11590-1-bharat@chelsio.com
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-10-18 14:35:19 -04:00
Andrew Lunn 38b4fe3201 net: usb: lan78xx: Connect PHY before registering MAC
As soon as the netdev is registers, the kernel can start using the
interface. If the driver connects the MAC to the PHY after the netdev
is registered, there is a race condition where the interface can be
opened without having the PHY connected.

Change the order to close this race condition.

Fixes: 92571a1aae ("lan78xx: Connect phy early")
Reported-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18 10:22:04 -07:00
David S. Miller e381d2b4e2 Merge branch 'vsock-virtio-make-the-credit-mechanism-more-robust'
Stefano Garzarella says:

====================
vsock/virtio: make the credit mechanism more robust

This series makes the credit mechanism implemented in the
virtio-vsock devices more robust.
Patch 1 sends an update to the remote peer when the buf_alloc
change.
Patch 2 prevents a malicious peer (especially the guest) can
consume all the memory of the other peer, discarding packets
when the credit available is not respected.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18 10:19:43 -07:00
Stefano Garzarella ae6fcfbf5f vsock/virtio: discard packets if credit is not respected
If the remote peer doesn't respect the credit information
(buf_alloc, fwd_cnt), sending more data than it can send,
we should drop the packets to prevent a malicious peer
from using all of our memory.

This is patch follows the VIRTIO spec: "VIRTIO_VSOCK_OP_RW data
packets MUST only be transmitted when the peer has sufficient
free buffer space for the payload"

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18 10:19:43 -07:00
Stefano Garzarella ec3359b685 vsock/virtio: send a credit update when buffer size is changed
When the user application set a new buffer size value, we should
update the remote peer about this change, since it uses this
information to calculate the credit available.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18 10:19:43 -07:00
Ido Schimmel 2e978795bb mlxsw: spectrum_trap: Push Ethernet header before reporting trap
devlink maintains packets and bytes statistics for each trap. Since
eth_type_trans() was called to set the skb's protocol, the data pointer
no longer points to the start of the packet and the bytes accounting is
off by 14 bytes.

Fix this by pushing the skb's data pointer to the start of the packet.

Fixes: b5ce611fd9 ("mlxsw: spectrum: Add devlink-trap support")
Reported-by: Alex Kushnarov <alexanderk@mellanox.com>
Tested-by: Alex Kushnarov <alexanderk@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18 10:15:09 -07:00
Dragos Tarcatu 95a32c9805
ASoC: SOF: control: return true when kcontrol values change
All the kcontrol put() functions are currently returning 0 when
successful. This does not go well with alsamixer as it does
not seem to get notified on SND_CTL_EVENT_MASK_VALUE callbacks
when values change for (some of) the sof kcontrols.
This patch fixes that by returning true for volume, switch
and enum type kcontrols when values do change in put().

Signed-off-by: Dragos Tarcatu <dragos_tarcatu@mentor.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191018123806.18063-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-18 18:09:22 +01:00
Olivier Moysan 9b7a7f9216
ASoC: stm32: sai: fix sysclk management on shutdown
The commit below, adds a call to sysclk callback on shutdown.
This introduces a regression in stm32 SAI driver, as some clock
services are called twice, leading to unbalanced calls.
Move processing related to mclk from shutdown to sysclk callback.
When requested frequency is 0, assume shutdown and release mclk.

Fixes: 2458adb8f9 ("SoC: simple-card-utils: set 0Hz to sysclk when shutdown")

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Link: https://lore.kernel.org/r/20191018082040.31022-1-olivier.moysan@st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-18 18:09:03 +01:00
Chuhong Yuan e5f0d490fb
ASoC: Intel: sof-rt5682: add a check for devm_clk_get
sof_audio_probe misses a check for devm_clk_get and may cause problems.
Add a check for it to fix the bug.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191017025044.31474-1-hslester96@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-18 18:08:54 +01:00
Junya Monden 22e58665a0
ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting
Unlike other format-related DAI parameters, rdai->bit_clk_inv flag
is not properly re-initialized when setting format for new stream
processing. The inversion, if requested, is then applied not to default,
but to a previous value, which leads to SCKP bit in SSICR register being
set incorrectly.
Fix this by re-setting the flag to its initial value, determined by format.

Fixes: 1a7889ca8a ("ASoC: rsnd: fixup SND_SOC_DAIFMT_xB_xF behavior")
Cc: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Cc: Jiada Wang <jiada_wang@mentor.com>
Cc: Timo Wischer <twischer@de.adit-jv.com>
Cc: stable@vger.kernel.org # v3.17+
Signed-off-by: Junya Monden <jmonden@jp.adit-jv.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/20191016124255.7442-1-erosca@de.adit-jv.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-18 18:08:34 +01:00
Eric Dumazet 9669fffc14 net: ensure correct skb->tstamp in various fragmenters
Thomas found that some forwarded packets would be stuck
in FQ packet scheduler because their skb->tstamp contained
timestamps far in the future.

We thought we addressed this point in commit 8203e2d844
("net: clear skb->tstamp in forwarding paths") but there
is still an issue when/if a packet needs to be fragmented.

In order to meet EDT requirements, we have to make sure all
fragments get the original skb->tstamp.

Note that this original skb->tstamp should be zero in
forwarding path, but might have a non zero value in
output path if user decided so.

Fixes: fb420d5d91 ("tcp/fq: move back to CLOCK_MONOTONIC")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Thomas Bartschies <Thomas.Bartschies@cvk.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18 10:02:37 -07:00
Linus Torvalds 7571438a48 MMC host:
- sdhci-iproc: Prevent some spurious interrupts
  - renesas_sdhi/sh_mmcif: Avoid false warnings about IRQs not found
 
 MEMSTICK host:
  - jmb38x_ms: Fix an error handling path at ->probe()
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Merge tag 'mmc-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC host:
   - sdhci-iproc: Prevent some spurious interrupts
   - renesas_sdhi/sh_mmcif: Avoid false warnings about IRQs not found

  MEMSTICK host:
   - jmb38x_ms: Fix an error handling path at ->probe()"

* tag 'mmc-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'
  mmc: sdhci-iproc: fix spurious interrupts on Multiblock reads with bcm2711
  mmc: sh_mmcif: Use platform_get_irq_optional() for optional interrupt
  mmc: renesas_sdhi: Do not use platform_get_irq() to count interrupts
2019-10-18 10:00:46 -07:00
David S. Miller 63158ac0ba Merge branch 'net-bcmgenet-restore-internal-EPHY-support'
Doug Berger says:

====================
net: bcmgenet: restore internal EPHY support

I managed to get my hands on an old BCM97435SVMB board to do some
testing with the latest kernel and uncovered a number of things
that managed to get broken over the years (some by me ;).

This commit set attempts to correct the errors I observed in my
testing.

The first commit applies to all internal PHYs to restore proper
reporting of link status when a link comes up.

The second commit restores the soft reset to the initialization of
the older internal EPHYs used by 40nm Set-Top Box devices.

The third corrects a bug I introduced when removing excessive soft
resets by altering the initialization sequence in a way that keeps
the GENETv3 MAC interface happy.

Finally, I observed a number of issues when manually configuring
the network interface of the older EPHYs that appear to be resolved
by the fourth commit.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18 10:00:07 -07:00
Doug Berger 25382b991d net: bcmgenet: reset 40nm EPHY on energy detect
The EPHY integrated into the 40nm Set-Top Box devices can falsely
detect energy when connected to a disabled peer interface. When the
peer interface is enabled the EPHY will detect and report the link
as active, but on occasion may get into a state where it is not
able to exchange data with the connected GENET MAC. This issue has
not been observed when the link parameters are auto-negotiated;
however, it has been observed with a manually configured link.

It has been empirically determined that issuing a soft reset to the
EPHY when energy is detected prevents it from getting into this bad
state.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18 10:00:07 -07:00