Commit Graph

768171 Commits

Author SHA1 Message Date
Linus Torvalds b4460a9586 - Fix DM writecache target to allow an optional offset to the start of
the data and metadata area.  This allows userspace tools (e.g. LVM2)
   to place a header and metadata at the front of the writecache device
   for its use.
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Merge tag 'for-4.18/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fix from Mike Snitzer:
 "Fix DM writecache target to allow an optional offset to the start of
  the data and metadata area.

  This allows userspace tools (e.g. LVM2) to place a header and metadata
  at the front of the writecache device for its use"

* tag 'for-4.18/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm writecache: support optional offset for start of device
2018-07-20 14:24:17 -07:00
Olof Johansson 5858610f0d i.MX fixes for 4.18, round 4:
- A fix for i.MX6 RDU2 board on the wrong IRQ type of Marvell switch,
    which might result in a race condition in the interrupt handler and
    cause the OS to miss all future events.
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Merge tag 'imx-fixes-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.18, round 4:
 - A fix for i.MX6 RDU2 board on the wrong IRQ type of Marvell switch,
   which might result in a race condition in the interrupt handler and
   cause the OS to miss all future events.

* tag 'imx-fixes-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6: RDU2: fix irq type for mv88e6xxx switch

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-20 14:22:11 -07:00
Linus Torvalds 18cadf9f37 SCSI fixes on 20180720
A set of 8 obvious fixes.  Three (2 qla2xxx and the cxlflash oopses)
 are regressions, two from 4.17 and one from the merge window.  The
 hpsa change is user visible, but it fixes an error users have
 complained about.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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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:
 "A set of 8 obvious fixes.

  Three (2 qla2xxx and the cxlflash oopses) are regressions, two from
  4.17 and one from the merge window. The hpsa change is user visible,
  but it fixes an error users have complained about"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: cxlflash: fix assignment of the backend operations
  scsi: qedi: Send driver state to MFW
  scsi: qedf: Send the driver state to MFW
  scsi: hpsa: correct enclosure sas address
  scsi: sd_zbc: Fix variable type and bogus comment
  scsi: qla2xxx: Fix NULL pointer dereference for fcport search
  scsi: qla2xxx: Fix kernel crash due to late workqueue allocation
  scsi: qla2xxx: Fix inconsistent DMA mem alloc/free
2018-07-20 11:47:08 -07:00
Linus Torvalds 47736af324 IOMMU Fixes for Linux v4.18-rc5:
Only one revert:
 
 	* Revert an Intel VT-d patch that caused issues with the i915 GPU
 	  driver
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Merge tag 'iommu-fixes-v4.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fix from Joerg Roedel:
 "Only one revert, for an an Intel VT-d patch that caused issues with
  the i915 GPU driver"

* tag 'iommu-fixes-v4.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices"
2018-07-20 11:43:21 -07:00
Linus Torvalds de87dcdedc platform-drivers-x86 for v4.18-2
The Dell laptop ACPI video brightness control is now back
 after fixing a regression brought by SMM refactoring.
 
 The following is an automated git shortlog grouped by driver:
 
 dell-laptop:
  -  Fix backlight detection
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Merge tag 'platform-drivers-x86-v4.18-2' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver fixes from Andy Shevchenko:
 "The Dell laptop ACPI video brightness control is now back after fixing
  a regression brought by SMM refactoring"

* tag 'platform-drivers-x86-v4.18-2' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: dell-laptop: Fix backlight detection
2018-07-20 11:37:30 -07:00
Linus Torvalds 2a0ea7df1f ARC fixes for 4.18-rc6
- Fix CONFIG_SWAP [Alexey]
 
  - Robistify cmpxchg emulation for systems w/o atomics [Alexey / PeterZ]
 
  - Allow mprotext(PROT_EXEC) for stack mappings [Vineet]
 
  - HSDK platform enable PCIe, APG GPIO [Gustavo]
 
  - miscll other fixes, config updates etc
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Merge tag 'arc-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "ARC is back after radio silence in 4.17:

   - Fix CONFIG_SWAP [Alexey]

   - Robustify cmpxchg emulation for systems w/o atomics [Alexey /
     PeterZ]

   - Allow mprotext(PROT_EXEC) for stack mappings [Vineet]

   - HSDK platform enable PCIe, APG GPIO [Gustavo]

   - miscll other fixes, config updates etc"

* tag 'arc-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARCv2: [plat-hsdk]: Save accl reg pair by default
  ARC: mm: allow mprotect to make stack mappings executable
  ARC: Fix CONFIG_SWAP
  ARC: [arcompact] entry.S: minor code movement
  ARC: configs: Remove CONFIG_INITRAMFS_SOURCE from defconfigs
  ARC: configs: remove no longer needed CONFIG_DEVPTS_MULTIPLE_INSTANCES
  ARC: Improve cmpxchg syscall implementation
  ARC: [plat-hsdk]: Configure APB GPIO controller on ARC HSDK platform
  ARC: [plat-hsdk] Add PCIe support
  ARC: Enable machine_desc->init_per_cpu for !CONFIG_SMP
  ARC: Explicitly add -mmedium-calls to CFLAGS
2018-07-20 11:33:22 -07:00
Linus Torvalds 293bccc5b2 nds32 patches for 4.18
Here is the nds32 patch set based on 4.18-rc1.
 Contained in here are the bug fixes and building error fixes for nds32.
 
 These are the LTP20170427 testing results.
 
 Total Tests: 1902
 Total Skipped Tests: 593
 Total Failures: 418
 Kernel Version: 4.18.0-rc1-00006-g987553894f0c-dirty
 Machine Architecture: nds32
 
 Signed-off-by: Greentime Hu <greentime@andestech.com>
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Merge tag 'nds32-for-linus-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux

Pull nds32 updates from Greentime Hu:
 "Bug fixes and build ixes for nds32"

* tag 'nds32-for-linus-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
  nds32: fix build error "relocation truncated to fit: R_NDS32_25_PCREL_RELA" when make allyesconfig
  nds32: To simplify the implementation of update_mmu_cache()
  nds32: Fix the dts pointer is not passed correctly issue.
  nds32: To implement these icache invalidation APIs since nds32 cores don't snoop data cache. This issue is found by Guo Ren. Based on the Documentation/core-api/cachetlb.rst and it says:
  nds32: Fix build error caused by configuration flag rename
  nds32: define __NDS32_E[BL]__ for sparse
2018-07-20 11:18:33 -07:00
Linus Torvalds bfa54a3a00 Power management fix for 4.18-rc6
Fix a relatively old initialization issue in intel_pstate causing
 the pcc-cpufreq driver to be used instead of it on some HP Proliant
 systems, which turned into a functional regression during the 4.17
 cycle, because pcc-cpufreq is a scalability disaster and that was
 amplified by the idle loop rework done at that time (Rafael Wysocki).
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Merge tag 'pm-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a relatively old initialization issue in intel_pstate causing the
  pcc-cpufreq driver to be used instead of it on some HP Proliant
  systems.

  This turned into a functional regression during the 4.17 cycle,
  because pcc-cpufreq is a scalability disaster and that was amplified
  by the idle loop rework done at that time (Rafael Wysocki).

* tag 'pm-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Register when ACPI PCCH is present
2018-07-20 11:12:27 -07:00
Linus Torvalds 73894397e7 ACPI fix for 4.18-rc6
Extend the recently added suspend-to-idle quirk for Thinkpad X1
 Carbon 6th to other systems from that familiy which turned out
 to need it too (Robin Johnson).
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Merge tag 'acpi-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Extend the recently added suspend-to-idle quirk for Thinkpad X1 Carbon
  6th to other systems from that familiy which turned out to need it too
  (Robin Johnson)"

* tag 'acpi-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / EC: Use ec_no_wakeup on more Thinkpad X1 Carbon 6th systems
2018-07-20 11:09:10 -07:00
Felix Fietkau bc88ad2efd
MIPS: ath79: fix register address in ath79_ddr_wb_flush()
ath79_ddr_wb_flush_base has the type void __iomem *, so register offsets
need to be a multiple of 4 in order to access the intended register.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 24b0e3e84f ("MIPS: ath79: Improve the DDR controller interface")
Patchwork: https://patchwork.linux-mips.org/patch/19912/
Cc: Alban Bedel <albeu@free.fr>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org # 4.2+
2018-07-20 10:17:04 -07:00
Zheng Xiaowei d89b7664f7 usb: xhci: Fix memory leak in xhci_endpoint_reset()
If td_list is not empty the cfg_cmd will not be freed,
call xhci_free_command to free it.

Signed-off-by: Zheng Xiaowei <zhengxiaowei@ruijie.com.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-20 17:17:21 +02:00
Roland Dreier 9b38276813 nvme: fix handling of metadata_len for NVME_IOCTL_IO_CMD
The old code in nvme_user_cmd() passed the userspace virtual address
from nvme_passthru_cmd.metadata as the length of the metadata buffer
as well as the address to nvme_submit_user_cmd().

Fixes: 63263d60 ("nvme: Use metadata for passthrough commands")
Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-07-20 07:43:59 -07:00
Adam Thomson c413767e66 usb: typec: tcpm: Fix sink PDO starting index for PPS APDO selection
There is a bug in the sink PDO search code when trying to select
a PPS APDO. The current code actually sets the starting index for
searching to whatever value 'i' is, rather than choosing index 1
to avoid the first PDO (always 5V fixed). As a result, for sources
which support PPS but whose PPS APDO index does not match with the
supporting sink PPS APDO index for the platform, no valid PPS APDO
will be found so this feature will not be permitted.

Sadly in testing, both Source and Sink capabilities matched up and
this was missed. Code is now updated to correctly set the start
index to 1, and testing with additional PPS capable sources show
this to work as expected.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Fixes: 2eadc33f40 ("typec: tcpm: Add core support for sink side PPS")
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-20 16:40:04 +02:00
Jerry Zhang 4d644abf25 usb: gadget: f_fs: Only return delayed status when len is 0
Commit 1b9ba000 ("Allow function drivers to pause control
transfers") states that USB_GADGET_DELAYED_STATUS is only
supported if data phase is 0 bytes.

It seems that when the length is not 0 bytes, there is no
need to explicitly delay the data stage since the transfer
is not completed until the user responds. However, when the
length is 0, there is no data stage and the transfer is
finished once setup() returns, hence there is a need to
explicitly delay completion.

This manifests as the following bugs:

Prior to 946ef68ad4 ('Let setup() return
USB_GADGET_DELAYED_STATUS'), when setup is 0 bytes, ffs
would require user to queue a 0 byte request in order to
clear setup state. However, that 0 byte request was actually
not needed and would hang and cause errors in other setup
requests.

After the above commit, 0 byte setups work since the gadget
now accepts empty queues to ep0 to clear the delay, but all
other setups hang.

Fixes: 946ef68ad4 ("Let setup() return USB_GADGET_DELAYED_STATUS")
Signed-off-by: Jerry Zhang <zhangjerry@google.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-20 16:02:49 +02:00
Florian Westphal 6613b6173d netfilter: conntrack: dccp: treat SYNC/SYNCACK as invalid if no prior state
When first DCCP packet is SYNC or SYNCACK, we insert a new conntrack
that has an un-initialized timeout value, i.e. such entry could be
reaped at any time.

Mark them as INVALID and only ignore SYNC/SYNCACK when connection had
an old state.

Reported-by: syzbot+6f18401420df260e37ed@syzkaller.appspotmail.com
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-20 15:31:44 +02:00
Florian Westphal c6cc94df65 netfilter: nf_tables: don't allow to rename to already-pending name
Its possible to rename two chains to the same name in one
transaction:

nft add chain t c1
nft add chain t c2
nft 'rename chain t c1 c3;rename chain t c2 c3'

This creates two chains named 'c3'.

Appears to be harmless, both chains can still be deleted both
by name or handle, but, nevertheless, its a bug.

Walk transaction log and also compare vs. the pending renames.

Both chains can still be deleted, but nevertheless it is a bug as
we don't allow to create chains with identical names, so we should
prevent this from happening-by-rename too.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-20 15:31:44 +02:00
Florian Westphal 9f8aac0be2 netfilter: nf_tables: fix memory leaks on chain rename
The new name is stored in the transaction metadata, on commit,
the pointers to the old and new names are swapped.

Therefore in abort and commit case we have to free the
pointer in the chain_trans container.

In commit case, the pointer can be used by another cpu that
is currently dumping the renamed chain, thus kfree needs to
happen after waiting for rcu readers to complete.

Fixes: b7263e071a ("netfilter: nf_tables: Allow chain name of up to 255 chars")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-20 15:31:43 +02:00
Florian Westphal a12486ebe1 netfilter: nf_tables: free flow table struct too
Fixes: 3b49e2e94e ("netfilter: nf_tables: add flow table netlink frontend")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-20 15:31:43 +02:00
Florian Westphal b8088dda98 netfilter: nf_tables: use dev->name directly
no need to store the name in separate area.

Furthermore, it uses kmalloc but not kfree and most accesses seem to treat
it as char[IFNAMSIZ] not char *.

Remove this and use dev->name instead.

In case event zeroed dev, just omit the name in the dump.

Fixes: d92191aa84 ("netfilter: nf_tables: cache device name in flowtable object")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-20 15:31:43 +02:00
Damien Thébault 2502e5a025 platform/x86: dell-laptop: Fix backlight detection
Fix return code check for "max brightness" ACPI call.

The Dell laptop ACPI video brightness control is not present on dell
laptops anymore, but was present in older kernel versions.

The code that checks the return value is incorrect since the SMM
refactoring.

The old code was:
  if (buffer->output[0] == 0)

Which was changed to:
  ret = dell_send_request(...)
  if (ret)

However, dell_send_request() will return 0 if buffer->output[0] == 0,
so we must change the check to:
  if (ret == 0)

This issue was found on a Dell M4800 laptop, and the fix tested on it
as well.

Fixes: 549b4930f0 ("dell-smbios: Introduce dispatcher for SMM calls")
Signed-off-by: Damien Thébault <damien@dtbo.net>
Tested-by: Damien Thébault <damien@dtbo.net>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-07-20 15:29:59 +03:00
Lu Baolu 2db1581e1f Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices"
This reverts commit ab96746aaa.

The commit ab96746aaa ("iommu/vt-d: Clean up pasid quirk for
pre-production devices") triggers ECS mode on some platforms
which have broken ECS support. As the result, graphic device
will be inoperable on boot.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107017

Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2018-07-20 13:55:56 +02:00
Martin KaFai Lau 7c3e8b642b bpf: Use option "help" in the llvm-objcopy test
I noticed the "--version" option of the llvm-objcopy command has recently
disappeared from the master llvm branch.  It is currently used as a BTF
support test in tools/testing/selftests/bpf/Makefile.

This patch replaces it with "--help" which should be
less error prone in the future.

Fixes: c0fa1b6c3e ("bpf: btf: Add BTF tests")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-20 10:27:47 +02:00
Martin KaFai Lau 36fc3c8c28 bpf: btf: Clean up BTF_INT_BITS() in uapi btf.h
This patch shrinks the BTF_INT_BITS() mask.  The current
btf_int_check_meta() ensures the nr_bits of an integer
cannot exceed 64.  Hence, it is mostly an uapi cleanup.

The actual btf usage (i.e. seq_show()) is also modified
to use u8 instead of u16.  The verification (e.g. btf_int_check_meta())
path stays as is to deal with invalid BTF situation.

Fixes: 69b693f0ae ("bpf: btf: Introduce BPF Type Format (BTF)")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-20 10:25:48 +02:00
Taeung Song 759b94a00a tools/bpftool: Fix segfault case regarding 'pin' arguments
Arguments of 'pin' subcommand should be checked
at the very beginning of do_pin_any().
Otherwise segfault errors can occur when using
'map pin' or 'prog pin' commands, so fix it.

  # bpftool prog pin id
  Segmentation fault

Fixes: 71bb428fe2 ("tools: bpf: add bpftool")
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reported-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-20 10:16:54 +02:00
Zhao Chen f7482683f1 net-next/hinic: fix a problem in hinic_xmit_frame()
The calculation of "wqe_size" is not correct when the tx queue is busy in
hinic_xmit_frame().

When there are no free WQEs, the tx flow will unmap the skb buffer, then
ring the doobell for the pending packets. But the "wqe_size" which used
to calculate the doorbell address is not correct. The wqe size should be
cleared to 0, otherwise, it will cause a doorbell error.

This patch fixes the problem.

Reported-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-19 23:27:32 -07:00
Tariq Toukan 4905bd9a42 net/page_pool: Fix inconsistent lock state warning
Fix the warning below by calling the ptr_ring_consume_bh,
which uses spin_[un]lock_bh.

[  179.064300] ================================
[  179.069073] WARNING: inconsistent lock state
[  179.073846] 4.18.0-rc2+ #18 Not tainted
[  179.078133] --------------------------------
[  179.082907] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[  179.089637] swapper/21/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[  179.095478] 00000000963d1995 (&(&r->consumer_lock)->rlock){+.?.}, at:
__page_pool_empty_ring+0x61/0x100
[  179.105988] {SOFTIRQ-ON-W} state was registered at:
[  179.111443]   _raw_spin_lock+0x35/0x50
[  179.115634]   __page_pool_empty_ring+0x61/0x100
[  179.120699]   page_pool_destroy+0x32/0x50
[  179.125204]   mlx5e_free_rq+0x38/0xc0 [mlx5_core]
[  179.130471]   mlx5e_close_channel+0x20/0x120 [mlx5_core]
[  179.136418]   mlx5e_close_channels+0x26/0x40 [mlx5_core]
[  179.142364]   mlx5e_close_locked+0x44/0x50 [mlx5_core]
[  179.148509]   mlx5e_close+0x42/0x60 [mlx5_core]
[  179.153936]   __dev_close_many+0xb1/0x120
[  179.158749]   dev_close_many+0xa2/0x170
[  179.163364]   rollback_registered_many+0x148/0x460
[  179.169047]   rollback_registered+0x56/0x90
[  179.174043]   unregister_netdevice_queue+0x7e/0x100
[  179.179816]   unregister_netdev+0x18/0x20
[  179.184623]   mlx5e_remove+0x2a/0x50 [mlx5_core]
[  179.190107]   mlx5_remove_device+0xe5/0x110 [mlx5_core]
[  179.196274]   mlx5_unregister_interface+0x39/0x90 [mlx5_core]
[  179.203028]   cleanup+0x5/0xbfc [mlx5_core]
[  179.208031]   __x64_sys_delete_module+0x16b/0x240
[  179.213640]   do_syscall_64+0x5a/0x210
[  179.218151]   entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  179.224218] irq event stamp: 334398
[  179.228438] hardirqs last  enabled at (334398): [<ffffffffa511d8b7>]
rcu_process_callbacks+0x1c7/0x790
[  179.239178] hardirqs last disabled at (334397): [<ffffffffa511d872>]
rcu_process_callbacks+0x182/0x790
[  179.249931] softirqs last  enabled at (334386): [<ffffffffa509732e>] irq_enter+0x5e/0x70
[  179.259306] softirqs last disabled at (334387): [<ffffffffa509741c>] irq_exit+0xdc/0xf0
[  179.268584]
[  179.268584] other info that might help us debug this:
[  179.276572]  Possible unsafe locking scenario:
[  179.276572]
[  179.283877]        CPU0
[  179.286954]        ----
[  179.290033]   lock(&(&r->consumer_lock)->rlock);
[  179.295546]   <Interrupt>
[  179.298830]     lock(&(&r->consumer_lock)->rlock);
[  179.304550]
[  179.304550]  *** DEADLOCK ***

Fixes: ff7d6b27f8 ("page_pool: refurbish version of page_pool code")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-19 23:23:01 -07:00
Linus Torvalds 28c20cc73b nouveau and amdgpu fixes
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Merge tag 'drm-fixes-2018-07-20' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Just two sets of driver fixes this week to follow up on the set from
  earlier in the week and hopefully get me realigned schedule wise.

  amdgpu:
   - ACP fix for boards with multiple I2S instances
   - DP fix for CZ, vega
   - hybrid laptop fixes
   - Resume regression fix

  nouveau:
   - large memory systems and Pascal fix
   - MST race fixes
   - runtime PM fix"

* tag 'drm-fixes-2018-07-20' of git://anongit.freedesktop.org/drm/drm:
  drm/nouveau/fb/gp100-: disable address remapper
  drm/amd/amdgpu: creating two I2S instances for stoney/cz (v2)
  drm/amdgpu: add another ATPX quirk for TOPAZ
  drm/amd/display: Fix DP HBR2 Eye Diagram Pattern on Carrizo
  drm/amdgpu: Make sure IB tests flushed after IP resume
  drm/nouveau: Set DRIVER_ATOMIC cap earlier to fix debugfs
  drm/nouveau: Remove bogus crtc check in pmops_runtime_idle
  drm/nouveau/drm/nouveau: Fix runtime PM leak in nv50_disp_atomic_commit()
  drm/nouveau: Avoid looping through fake MST connectors
  drm/nouveau: Use drm_connector_list_iter_* for iterating connectors
  drm/nouveau/gem: off by one bugs in nouveau_gem_pushbuf_reloc_apply()
  drm/nouveau/kms/nv50-: ensure window updates are submitted when flushing mst disables
2018-07-19 20:17:47 -07:00
Uwe Kleine-König e01a06c808 ARM: dts: imx6: RDU2: fix irq type for mv88e6xxx switch
The Marvell switches report their interrupts in a level sensitive way.
When using edge sensitive detection a race condition in the interrupt
handler of the swich might result in the OS to miss all future events
which might make the switch non-functional.

The problem is that both mv88e6xxx_g2_irq_thread_fn() and
mv88e6xxx_g1_irq_thread_work() sample the irq cause register
(MV88E6XXX_G2_INT_SRC and MV88E6XXX_G1_STS respectively) once and then
handle the observed sources. If after sampling but before all observed
irq sources are handled a new irq source gets active this is not noticed
by the handler which returns unsuspecting, but the interrupt line stays
active which prevents the edge detector to kick in.

All device trees but imx6qdl-zii-rdu2 get this right (most of them by
not specifying an interrupt parent). So fix imx6qdl-zii-rdu2
accordingly.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: f64992d1a9 ("ARM: dts: imx6: RDU2: Add Switch interrupts")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-07-20 10:50:44 +08:00
Dave Airlie 02e546eacc Merge branch 'linux-4.18' of git://github.com/skeggsb/linux into drm-fixes
- fix problem with pascal and large memory systems
- fix a bunch of MST problems
- fix a runtime PM interaction with MST

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv79O8deSts2fxJ_oS6=q8yA+OgwBSEpp5R=BQBmWa+oyg@mail.gmail.com
2018-07-20 10:27:53 +10:00
Dave Airlie b83ce39b92 Merge branch 'drm-fixes-4.18' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Fixes for 4.18.  The ACP patch is a bit bigger than I would like
at this point, but it should have gone in long ago, it just fell
through the cracks.  The others are pretty small and straight-forward.
- ACP fix for boards with 2 I2S instances
- DP fix for CZ, vega
- Fix for a hybrid graphics laptop
- Fix a resume regression

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180718162603.2747-1-alexander.deucher@amd.com
2018-07-20 10:23:44 +10:00
Alexei Starovoitov bb39286739 Merge branch 'ppc-fix'
Daniel Borkmann says:

====================
This set adds a ppc64 JIT fix for xadd as well as a missing test
case for verifying whether xadd messes with src/dst reg. Thanks!
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-07-19 16:08:07 -07:00
Daniel Borkmann fa47a16b04 bpf: test case to check whether src/dst regs got mangled by xadd
We currently do not have such a test case in test_verifier selftests
but it's important to test under bpf_jit_enable=1 to make sure JIT
implementations do not mistakenly mess with src/dst reg for xadd/{w,dw}.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-07-19 16:08:06 -07:00
Daniel Borkmann b9c1e60e7b bpf, ppc64: fix unexpected r0=0 exit path inside bpf_xadd
None of the JITs is allowed to implement exit paths from the BPF
insn mappings other than BPF_JMP | BPF_EXIT. In the BPF core code
we have a couple of rewrites in eBPF (e.g. LD_ABS / LD_IND) and
in eBPF to cBPF translation to retain old existing behavior where
exceptions may occur; they are also tightly controlled by the
verifier where it disallows some of the features such as BPF to
BPF calls when legacy LD_ABS / LD_IND ops are present in the BPF
program. During recent review of all BPF_XADD JIT implementations
I noticed that the ppc64 one is buggy in that it contains two
jumps to exit paths. This is problematic as this can bypass verifier
expectations e.g. pointed out in commit f6b1b3bf0d ("bpf: fix
subprog verifier bypass by div/mod by 0 exception"). The first
exit path is obsoleted by the fix in ca36960211 ("bpf: allow xadd
only on aligned memory") anyway, and for the second one we need to
do a fetch, add and store loop if the reservation from lwarx/ldarx
was lost in the meantime.

Fixes: 156d0e290e ("powerpc/ebpf/jit: Implement JIT compiler for extended BPF")
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Sandipan Das <sandipan@linux.vnet.ibm.com>
Tested-by: Sandipan Das <sandipan@linux.vnet.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-07-19 16:08:06 -07:00
Olof Johansson 8b369c0073 i.MX fixes for 4.18, round 3:
- Restrict GPC driver on register range that is accessible by regmap,
    so that we can avoid user space from triggering imprecise external
    abort exception.
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Merge tag 'imx-fixes-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.18, round 3:
 - Restrict GPC driver on register range that is accessible by regmap,
   so that we can avoid user space from triggering imprecise external
   abort exception.

* tag 'imx-fixes-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: gpc: restrict register range for regmap access

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-19 15:09:59 -07:00
Olof Johansson 1f9f163500 One omap dts mismerge fix
The dts patch for droid4 PWM vibrator has added gpio6 entries to the wrong
 node. Let's fix it with a note that there seems to be also other GPIO PWM
 issues to fix still to get the PWM vibrator working. So this can wait for
 v4.19 merge cycle if necessary.
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Merge tag 'omap-for-v4.18/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

One omap dts mismerge fix

The dts patch for droid4 PWM vibrator has added gpio6 entries to the wrong
node. Let's fix it with a note that there seems to be also other GPIO PWM
issues to fix still to get the PWM vibrator working. So this can wait for
v4.19 merge cycle if necessary.

* tag 'omap-for-v4.18/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap4-droid4: fix dts w.r.t. pwm

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-19 15:07:12 -07:00
Linus Torvalds fb7d1bcf16 pci-v4.18-fixes-3
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Merge tag 'pci-v4.18-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Fix crashes that happen when PHY drivers are left disabled in the V3
   Semiconductor, MediaTek, Faraday, Aardvark, DesignWare, Versatile,
   and X-Gene host controller drivers (Sergei Shtylyov)

 - Fix a NULL pointer dereference in the endpoint library configfs
   support (Kishon Vijay Abraham I)

 - Fix a race condition in Hyper-V IRQ handling (Dexuan Cui)

* tag 'pci-v4.18-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: v3-semi: Fix I/O space page leak
  PCI: mediatek: Fix I/O space page leak
  PCI: faraday: Fix I/O space page leak
  PCI: aardvark: Fix I/O space page leak
  PCI: designware: Fix I/O space page leak
  PCI: versatile: Fix I/O space page leak
  PCI: xgene: Fix I/O space page leak
  PCI: OF: Fix I/O space page leak
  PCI: endpoint: Fix NULL pointer dereference error when CONFIGFS is disabled
  PCI: hv: Disable/enable IRQs rather than BH in hv_compose_msi_msg()
2018-07-19 11:54:04 -07:00
Vineet Gupta af1fc5baa7 ARCv2: [plat-hsdk]: Save accl reg pair by default
This manifsted as strace segfaulting on HSDK because gcc was targetting
the accumulator registers as GPRs, which kernek was not saving/restoring
by default.

Cc: stable@vger.kernel.org   #4.14+
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2018-07-19 10:36:45 -07:00
Linus Torvalds f39f28ff82 sound fixes for 4.18-rc6
A rawmidi race fix and three trivial HD-audio quirks.
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Merge tag 'sound-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A rawmidi race fix and three trivial HD-audio quirks"

* tag 'sound-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek - Yet another Clevo P950 quirk entry
  ALSA: rawmidi: Change resized buffers atomically
  ALSA: hda/realtek - Add Panasonic CF-SZ6 headset jack quirk
  ALSA: hda: add mute led support for HP ProBook 455 G5
2018-07-19 07:43:17 -07:00
Robin H. Johnson 2c4d6baf1b ACPI / EC: Use ec_no_wakeup on more Thinkpad X1 Carbon 6th systems
The ec_no_wakeup matcher added for Thinkpad X1 Carbon 6th gen systems
beyond matched only a single DMI model (20KGS3JF01), that didn't cover
my laptop (20KH002JUS). Change to match based on DMI product family to
cover all X1 6th gen systems.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-07-19 16:42:15 +02:00
Linus Torvalds b4394c3435 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes an allocation error-path bug in af_alg discovered by
  syzkaller"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: af_alg - Initialize sg_num_bytes in error code path
2018-07-19 07:32:44 -07:00
Filipe Manana bd3599a0e1 Btrfs: fix file data corruption after cloning a range and fsync
When we clone a range into a file we can end up dropping existing
extent maps (or trimming them) and replacing them with new ones if the
range to be cloned overlaps with a range in the destination inode.
When that happens we add the new extent maps to the list of modified
extents in the inode's extent map tree, so that a "fast" fsync (the flag
BTRFS_INODE_NEEDS_FULL_SYNC not set in the inode) will see the extent maps
and log corresponding extent items. However, at the end of range cloning
operation we do truncate all the pages in the affected range (in order to
ensure future reads will not get stale data). Sometimes this truncation
will release the corresponding extent maps besides the pages from the page
cache. If this happens, then a "fast" fsync operation will miss logging
some extent items, because it relies exclusively on the extent maps being
present in the inode's extent tree, leading to data loss/corruption if
the fsync ends up using the same transaction used by the clone operation
(that transaction was not committed in the meanwhile). An extent map is
released through the callback btrfs_invalidatepage(), which gets called by
truncate_inode_pages_range(), and it calls __btrfs_releasepage(). The
later ends up calling try_release_extent_mapping() which will release the
extent map if some conditions are met, like the file size being greater
than 16Mb, gfp flags allow blocking and the range not being locked (which
is the case during the clone operation) nor being the extent map flagged
as pinned (also the case for cloning).

The following example, turned into a test for fstests, reproduces the
issue:

  $ mkfs.btrfs -f /dev/sdb
  $ mount /dev/sdb /mnt

  $ xfs_io -f -c "pwrite -S 0x18 9000K 6908K" /mnt/foo
  $ xfs_io -f -c "pwrite -S 0x20 2572K 156K" /mnt/bar

  $ xfs_io -c "fsync" /mnt/bar
  # reflink destination offset corresponds to the size of file bar,
  # 2728Kb minus 4Kb.
  $ xfs_io -c ""reflink ${SCRATCH_MNT}/foo 0 2724K 15908K" /mnt/bar
  $ xfs_io -c "fsync" /mnt/bar

  $ md5sum /mnt/bar
  95a95813a8c2abc9aa75a6c2914a077e  /mnt/bar

  <power fail>

  $ mount /dev/sdb /mnt
  $ md5sum /mnt/bar
  207fd8d0b161be8a84b945f0df8d5f8d  /mnt/bar
  # digest should be 95a95813a8c2abc9aa75a6c2914a077e like before the
  # power failure

In the above example, the destination offset of the clone operation
corresponds to the size of the "bar" file minus 4Kb. So during the clone
operation, the extent map covering the range from 2572Kb to 2728Kb gets
trimmed so that it ends at offset 2724Kb, and a new extent map covering
the range from 2724Kb to 11724Kb is created. So at the end of the clone
operation when we ask to truncate the pages in the range from 2724Kb to
2724Kb + 15908Kb, the page invalidation callback ends up removing the new
extent map (through try_release_extent_mapping()) when the page at offset
2724Kb is passed to that callback.

Fix this by setting the bit BTRFS_INODE_NEEDS_FULL_SYNC whenever an extent
map is removed at try_release_extent_mapping(), forcing the next fsync to
search for modified extents in the fs/subvolume tree instead of relying on
the presence of extent maps in memory. This way we can continue doing a
"fast" fsync if the destination range of a clone operation does not
overlap with an existing range or if any of the criteria necessary to
remove an extent map at try_release_extent_mapping() is not met (file
size not bigger then 16Mb or gfp flags do not allow blocking).

CC: stable@vger.kernel.org # 3.16+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2018-07-19 15:36:31 +02:00
Ben Skeggs 2f958e8240 drm/nouveau/fb/gp100-: disable address remapper
This was causing problems on a system with a large amount of RAM, where
display push buffers were being fetched incorrectly when placed in high
system memory addresses.

While this commit will resolve the issue on that particular system, the
issue will be avoided completely with another patch to more fully solve
problems with display and large amounts of system memory on Pascal.

It's still probably a good idea to disable this to prevent weird issues
in the future.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-19 14:36:51 +10:00
Linus Torvalds 024ddc0ce1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Lots of fixes, here goes:

   1) NULL deref in qtnfmac, from Gustavo A. R. Silva.

   2) Kernel oops when fw download fails in rtlwifi, from Ping-Ke Shih.

   3) Lost completion messages in AF_XDP, from Magnus Karlsson.

   4) Correct bogus self-assignment in rhashtable, from Rishabh
      Bhatnagar.

   5) Fix regression in ipv6 route append handling, from David Ahern.

   6) Fix masking in __set_phy_supported(), from Heiner Kallweit.

   7) Missing module owner set in x_tables icmp, from Florian Westphal.

   8) liquidio's timeouts are HZ dependent, fix from Nicholas Mc Guire.

   9) Link setting fixes for sh_eth and ravb, from Vladimir Zapolskiy.

  10) Fix NULL deref when using chains in act_csum, from Davide Caratti.

  11) XDP_REDIRECT needs to check if the interface is up and whether the
      MTU is sufficient. From Toshiaki Makita.

  12) Net diag can do a double free when killing TCP_NEW_SYN_RECV
      connections, from Lorenzo Colitti.

  13) nf_defrag in ipv6 can unnecessarily hold onto dst entries for a
      full minute, delaying device unregister. From Eric Dumazet.

  14) Update MAC entries in the correct order in ixgbe, from Alexander
      Duyck.

  15) Don't leave partial mangles bpf program in jit_subprogs, from
      Daniel Borkmann.

  16) Fix pfmemalloc SKB state propagation, from Stefano Brivio.

  17) Fix ACK handling in DCTCP congestion control, from Yuchung Cheng.

  18) Use after free in tun XDP_TX, from Toshiaki Makita.

  19) Stale ipv6 header pointer in ipv6 gre code, from Prashant Bhole.

  20) Don't reuse remainder of RX page when XDP is set in mlx4, from
      Saeed Mahameed.

  21) Fix window probe handling of TCP rapair sockets, from Stefan
      Baranoff.

  22) Missing socket locking in smc_ioctl(), from Ursula Braun.

  23) IPV6_ILA needs DST_CACHE, from Arnd Bergmann.

  24) Spectre v1 fix in cxgb3, from Gustavo A. R. Silva.

  25) Two spots in ipv6 do a rol32() on a hash value but ignore the
      result. Fixes from Colin Ian King"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (176 commits)
  tcp: identify cryptic messages as TCP seq # bugs
  ptp: fix missing break in switch
  hv_netvsc: Fix napi reschedule while receive completion is busy
  MAINTAINERS: Drop inactive Vitaly Bordug's email
  net: cavium: Add fine-granular dependencies on PCI
  net: qca_spi: Fix log level if probe fails
  net: qca_spi: Make sure the QCA7000 reset is triggered
  net: qca_spi: Avoid packet drop during initial sync
  ipv6: fix useless rol32 call on hash
  ipv6: sr: fix useless rol32 call on hash
  net: sched: Using NULL instead of plain integer
  net: usb: asix: replace mii_nway_restart in resume path
  net: cxgb3_main: fix potential Spectre v1
  lib/rhashtable: consider param->min_size when setting initial table size
  net/smc: reset recv timeout after clc handshake
  net/smc: add error handling for get_user()
  net/smc: optimize consumer cursor updates
  net/nfc: Avoid stalls when nfc_alloc_send_skb() returned NULL.
  ipv6: ila: select CONFIG_DST_CACHE
  net: usb: rtl8150: demote allmulti message to dev_dbg()
  ...
2018-07-18 19:32:54 -07:00
Anson Huang de2d9b5284 soc: imx: gpc: restrict register range for regmap access
GPC registers are NOT continuous, some registers are
reserved and accessing them from userspace will trigger
external abort, add regmap register access table to
avoid below abort:

root@imx6slevk:~# cat /sys/kernel/debug/regmap/20dc000.gpc/registers
[  108.480477] Unhandled fault: imprecise external abort (0x1406) at 0xb6db5004
[  108.487985] pgd = 42b54bfd
[  108.490741] [b6db5004] *pgd=ba1b7831
[  108.494386] Internal error: : 1406 [#1] SMP ARM
[  108.498943] Modules linked in:
[  108.502043] CPU: 0 PID: 389 Comm: cat Not tainted 4.18.0-rc1-00074-gc9f1f60-dirty #482
[  108.509982] Hardware name: Freescale i.MX6 SoloLite (Device Tree)
[  108.516123] PC is at regmap_mmio_read32le+0x20/0x24
[  108.521031] LR is at regmap_mmio_read+0x40/0x60
[  108.525586] pc : [<c059cf74>]    lr : [<c059d1ac>]    psr: 20060093
[  108.531875] sp : eccf1d98  ip : eccf1da8  fp : eccf1da4
[  108.537122] r10: ec2d3800  r9 : eccf1f60  r8 : ecfc0000
[  108.542370] r7 : eccf1e2c  r6 : eccf1e2c  r5 : 00000028  r4 : ec338e00
[  108.548920] r3 : 00000000  r2 : eccf1e2c  r1 : f0980028  r0 : 00000000
[  108.555474] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
[  108.562720] Control: 10c5387d  Table: acf4004a  DAC: 00000051
[  108.568491] Process cat (pid: 389, stack limit = 0xd4318a65)
[  108.574174] Stack: (0xeccf1d98 to 0xeccf2000)

Fixes: 721cabf6c6 ("soc: imx: move PGC handling to a new GPC driver")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-07-19 10:24:00 +08:00
Roi Dayan 7e29392eee net/mlx5e: Only allow offloading decap egress (egdev) flows
We get egress rules through the egdev mechanism when the ingress device
is not supporting offload, with the expected use-case of tunnel decap
ingress rule set on shared tunnel device.

Make sure to offload egress/egdev rules only if decap action (tunnel key
unset) exists there and err otherwise.

Fixes: 717503b9cf ("net: sched: convert cls_flower->egress_dev users to tc_setup_cb_egdev infra")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-18 18:16:59 -07:00
Tariq Toukan d7037ad73d net/mlx5: Fix QP fragmented buffer allocation
Fix bad alignment of SQ buffer in fragmented QP allocation.
It should start directly after RQ buffer ends.

Take special care of the end case where the RQ buffer does not occupy
a whole page. RQ size is a power of two, so would be the case only for
small RQ sizes (RQ size < PAGE_SIZE).

Fix wrong assignments for sqb->size (mistakenly assigned RQ size),
and for npages value of RQ and SQ.

Fixes: 3a2f703312 ("net/mlx5: Use order-0 allocations for all WQ types")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-18 18:16:58 -07:00
Raed Salem 8c49f54a3f net/mlx5: Fix 'DON'T_TRAP' functionality
The flow counters binding support commit introduced a code change where
none NULL 'rule_dest' is always passed to mlx5_add_flow_rules, this breaks
'DON'T_TRAP' rules insertion.

The fix uses the equivalent 'dest_num' value instead of dest pointer
at the failed check.

fixes: 3b3233fbf0 ('IB/mlx5: Add flow counters binding support')
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-18 18:16:57 -07:00
Saeed Mahameed 443a858158 net/mlx5: E-Switch, UBSAN fix undefined behavior in mlx5_eswitch_mode
With debug kernel UBSAN detects the following issue, which might happen
when eswitch instance is not created, fix this by testing the eswitch
pointer before returning the eswitch mode, if not set return mode =
SRIOV_NONE.

[   32.528951] UBSAN: Undefined behaviour in drivers/net/ethernet/mellanox/mlx5/core/eswitch.c:2219:12
[   32.528951] member access within null pointer of type 'struct mlx5_eswitch'
[   32.528951] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc3-dirty #181
[   32.528951] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.11.0-0-g63451fca13-prebuilt.qemu-project.org 04/01/2014
[   32.528951] Call Trace:
[   32.528951]  dump_stack+0xc7/0x13b
[   32.528951]  ? show_regs_print_info+0x5/0x5
[   32.528951]  ? __pm_runtime_use_autosuspend+0x140/0x140
[   32.528951]  ubsan_epilogue+0x9/0x49
[   32.528951]  ubsan_type_mismatch_common+0x1f9/0x2c0
[   32.528951]  ? ucs2_as_utf8+0x310/0x310
[   32.528951]  ? device_initialize+0x229/0x2e0
[   32.528951]  __ubsan_handle_type_mismatch+0x9f/0xc9
[   32.528951]  ? __ubsan_handle_divrem_overflow+0x19b/0x19b
[   32.578008]  ? ib_device_get_by_index+0xf0/0xf0
[   32.578008]  mlx5_eswitch_mode+0x30/0x40
[   32.578008]  mlx5_ib_add+0x1e0/0x4a0

Fixes: 57cbd893c4 ("net/mlx5: E-Switch, Move representors definition to a global scope")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
2018-07-18 18:16:57 -07:00
Eran Ben Elisha d2e1c57bcf net/mlx5e: Don't allow aRFS for encapsulated packets
Driver is yet to support aRFS for encapsulated packets, return early
error in such case.

Fixes: 18c908e477 ("net/mlx5e: Add accelerated RFS support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-18 18:16:56 -07:00
Eran Ben Elisha 2630bae801 net/mlx5e: Fix quota counting in aRFS expire flow
Quota should follow the amount of rules which do expire, and not the
number of rules that were examined, fixed that.

Fixes: 18c908e477 ("net/mlx5e: Add accelerated RFS support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-18 18:16:55 -07:00