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Merge tag 'for-linus-20180825' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few small fixes for this merge window:
- Locking imbalance fix for bcache (Shan Hai)
- A few small fixes for wbt. One is a cleanup/prep, one is a fix for
an existing issue, and the last two are fixes for changes that went
into this merge window (me)"
* tag 'for-linus-20180825' of git://git.kernel.dk/linux-block:
blk-wbt: don't maintain inflight counts if disabled
blk-wbt: fix has-sleeper queueing check
blk-wbt: use wq_has_sleeper() for wq active check
blk-wbt: move disable check into get_limit()
bcache: release dc->writeback_lock properly in bch_writeback_thread()
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Merge tag '4.19-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Three small SMB3 fixes, one for stable"
* tag '4.19-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal module version number for cifs.ko to 2.12
cifs: check kmalloc before use
cifs: check if SMB2 PDU size has been padded and suppress the warning
cifs: create a define for how many iovs we need for an SMB2_open()
This is not normally noticeable, but repeated forks are unnecessarily
expensive because they repeatedly dirty the parent page tables during
the page table copy operation.
It's trivial to just avoid write protecting the page table entry if it
was already not writable.
This patch was inspired by
https://bugzilla.kernel.org/show_bug.cgi?id=200447
which points to an ancient "waste time re-doing fork" issue in the
presence of lots of signals.
That bug was fixed by Eric Biederman's signal handling series
culminating in commit c3ad2c3b02 ("signal: Don't restart fork when
signals come in"), but the unnecessary work for repeated forks is still
work just fixing, particularly since the fix is trivial.
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
At the point where r is being checked for different values, r is always
going to be equal to 2 as the previous if statements jump to end or end1
if r is not 2. Hence the assignment to err can be simplified to just
err an assignment without any checks on the value or r.
Detected by CoverityScan, CID#1226737 ("Logically dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo wrote:
>
> I asked Jens whether he could take care of the libata tree and he
> thankfully agreed, so, from now on, Jens will be the libata
> maintainer.
>
> Thanks a lot!
Thanks for your work in this area. I still remember the first linux
storage summit we did in Vancouver 2001, Tejun was invited to talk about
his libata error handling work. Before that, it was basically a crap
shoot if we recovered properly or not... A lot of water has flown under
the bridge since then!
Here's an "official" patch. Linus, can you apply it?
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2018-08-24
This series contains fixes to e1000, igb, ixgb, ixgbe and i40e.
YueHaibing from Huawei provides a change to use dma_zalloc_coherent()
instead of calls to allocator followed by a memset for ixgb.
Bo Chen provides a couple of fixes for e1000, first by adding a check to
prevent a NULL pointer dereference. The second change is to clean up a
possible resource leak on old transmit and receive rings when the device
is not up.
Jesus fixes an issue in the usage of an advanced transmit context
descriptor for retrieving the timestamp of a packet for AF_PACKET if the
IGB_TX_FLAGS_VLAN is not set in igb.
Jia-Ju Bai provides several patches which replace GFP_ATOMIC with
GFP_KERNEL, when using kzalloc() and kcalloc() which is not necessary.
Also found an instance of mdelay() call which could be replaced with
msleep().
Tony fixes ixgbe to allow MTU changes with XDP, by adding checks to
ensure only supported values and return -EINVAL for when it is not
supported.
Sebastian fixed an issue that was not clearing VF mailbox memory and
ensure queues are re-enabled correctly.
Martyna fixes a transmit timeout when DCB is configured when bringing up
an interface.
Jake fixes a previous commit which accidentally reversed the check of
the data pointer, so we can accurately count the size of the stats.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull libata updates from Tejun Heo:
"Nothing too interesting. Mostly ahci and ahci_platform changes, many
around power management"
* 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits)
ata: ahci_platform: enable to get and control reset
ata: libahci_platform: add reset control support
ata: add an extra argument to ahci_platform_get_resources()
ata: sata_rcar: Add r8a77965 support
ata: sata_rcar: exclude setting of PHY registers in Gen3
ata: sata_rcar: really mask all interrupts on Gen2 and later
Revert "ata: ahci_platform: allow disabling of hotplug to save power"
ata: libahci: Allow reconfigure of DEVSLP register
ata: libahci: Correct setting of DEVSLP register
ata: ahci: Enable DEVSLP by default on x86 with SLP_S0
ata: ahci: Support state with min power but Partial low power state
Revert "ata: ahci_platform: convert kcalloc to devm_kcalloc"
ata: sata_rcar: Add rudimentary Runtime PM support
ata: sata_rcar: Provide a short-hand for &pdev->dev
ata: Only output sg element mapped number in verbose debug
ata: Guard ata_scsi_dump_cdb() by ATA_VERBOSE_DEBUG
ata: ahci_platform: convert kcalloc to devm_kcalloc
ata: ahci_platform: convert kzallloc to kcalloc
ata: ahci_platform: correct parameter documentation for ahci_platform_shutdown
libata: remove ata_sff_data_xfer_noirq()
...
Pull cgroup updates from Tejun Heo:
"Just one commit from Steven to take out spin lock from trace event
handlers"
* 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup/tracing: Move taking of spin lock out of trace event handlers
Pull workqueue updates from Tejun Heo:
"Over the lockdep cross-release churn, workqueue lost some of the
existing annotations. Johannes Berg restored it and also improved
them"
* 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: re-add lockdep dependencies for flushing
workqueue: skip lockdep wq dependency in cancel_work_sync()
Including:
- PASID table handling updates for the Intel VT-d driver. It
implements a global PASID space now so that applications
usings multiple devices will just have one PASID.
- A new config option to make iommu passthroug mode the default.
- New sysfs attribute for iommu groups to export the type of the
default domain.
- A debugfs interface (for debug only) usable by IOMMU drivers
to export internals to user-space.
- R-Car Gen3 SoCs support for the ipmmu-vmsa driver
- The ARM-SMMU now aborts transactions from unknown devices and
devices not attached to any domain.
- Various cleanups and smaller fixes all over the place.
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Merge tag 'iommu-updates-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
- PASID table handling updates for the Intel VT-d driver. It implements
a global PASID space now so that applications usings multiple devices
will just have one PASID.
- A new config option to make iommu passthroug mode the default.
- New sysfs attribute for iommu groups to export the type of the
default domain.
- A debugfs interface (for debug only) usable by IOMMU drivers to
export internals to user-space.
- R-Car Gen3 SoCs support for the ipmmu-vmsa driver
- The ARM-SMMU now aborts transactions from unknown devices and devices
not attached to any domain.
- Various cleanups and smaller fixes all over the place.
* tag 'iommu-updates-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (42 commits)
iommu/omap: Fix cache flushes on L2 table entries
iommu: Remove the ->map_sg indirection
iommu/arm-smmu-v3: Abort all transactions if SMMU is enabled in kdump kernel
iommu/arm-smmu-v3: Prevent any devices access to memory without registration
iommu/ipmmu-vmsa: Don't register as BUS IOMMU if machine doesn't have IPMMU-VMSA
iommu/ipmmu-vmsa: Clarify supported platforms
iommu/ipmmu-vmsa: Fix allocation in atomic context
iommu: Add config option to set passthrough as default
iommu: Add sysfs attribyte for domain type
iommu/arm-smmu-v3: sync the OVACKFLG to PRIQ consumer register
iommu/arm-smmu: Error out only if not enough context interrupts
iommu/io-pgtable-arm-v7s: Abort allocation when table address overflows the PTE
iommu/io-pgtable-arm: Fix pgtable allocation in selftest
iommu/vt-d: Remove the obsolete per iommu pasid tables
iommu/vt-d: Apply per pci device pasid table in SVA
iommu/vt-d: Allocate and free pasid table
iommu/vt-d: Per PCI device pasid table interfaces
iommu/vt-d: Add for_each_device_domain() helper
iommu/vt-d: Move device_domain_info to header
iommu/vt-d: Apply global PASID in SVA
...
Pull thermal management updates from Zhang Rui:
- Add Daniel Lezcano as the reviewer of thermal framework and SoC
driver changes (Daniel Lezcano).
- Fix a bug in intel_dts_soc_thermal driver, which does not translate
IO-APIC GSI (Global System Interrupt) into Linux irq number (Hans de
Goede).
- For device tree bindings, allow cooling devices sharing same trip
point with same contribution value to share cooling map (Viresh
Kumar).
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
dt-bindings: thermal: Allow multiple devices to share cooling map
MAINTAINERS: Add Daniel Lezcano as designated reviewer for thermal
Thermal: Intel SoC DTS: Translate IO-APIC GSI number to linux irq number
- apparmor: remove no-op permission check in policy_unpack
+ Bug fixes
- apparmor: fix an error code in __aa_create_ns()
- apparmor: Fix failure to audit context info in build_change_hat
- apparmor: Check buffer bounds when mapping permissions mask
- apparmor: Fully initialize aa_perms struct when answering userspace query
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Merge tag 'apparmor-pr-2018-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
Pull apparmor updates from John Johansen:
"There is nothing major this time just four bug fixes and a patch to
remove some dead code:
Cleanups:
- remove no-op permission check in policy_unpack
Bug fixes:
- fix an error code in __aa_create_ns()
- fix failure to audit context info in build_change_hat
- check buffer bounds when mapping permissions mask
- fully initialize aa_perms struct when answering userspace query"
* tag 'apparmor-pr-2018-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: remove no-op permission check in policy_unpack
apparmor: fix an error code in __aa_create_ns()
apparmor: Fix failure to audit context info in build_change_hat
apparmor: Fully initialize aa_perms struct when answering userspace query
apparmor: Check buffer bounds when mapping permissions mask
- An implementation for the newly added hv_ops->flush() for the OPAL hvc
console driver backends, I forgot to apply this after merging the hvc driver
changes before the merge window.
- Enable all PCI bridges at boot on powernv, to avoid races when multiple
children of a bridge try to enable it simultaneously. This is a workaround
until the PCI core can be enhanced to fix the races.
- A fix to query PowerVM for the correct system topology at boot before
initialising sched domains, seen in some configurations to cause broken
scheduling etc.
- A fix for pte_access_permitted() on "nohash" platforms.
- Two commits to fix SIGBUS when using remap_pfn_range() seen on Power9 due to
a workaround when using the nest MMU (GPUs, accelerators).
- Another fix to the VFIO code used by KVM, the previous fix had some bugs
which caused guests to not start in some configurations.
- A handful of other minor fixes.
Thanks to:
Aneesh Kumar K.V, Benjamin Herrenschmidt, Christophe Leroy, Hari Bathini, Luke
Dashjr, Mahesh Salgaonkar, Nicholas Piggin, Paul Mackerras, Srikar Dronamraju.
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Merge tag 'powerpc-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- An implementation for the newly added hv_ops->flush() for the OPAL
hvc console driver backends, I forgot to apply this after merging the
hvc driver changes before the merge window.
- Enable all PCI bridges at boot on powernv, to avoid races when
multiple children of a bridge try to enable it simultaneously. This
is a workaround until the PCI core can be enhanced to fix the races.
- A fix to query PowerVM for the correct system topology at boot before
initialising sched domains, seen in some configurations to cause
broken scheduling etc.
- A fix for pte_access_permitted() on "nohash" platforms.
- Two commits to fix SIGBUS when using remap_pfn_range() seen on Power9
due to a workaround when using the nest MMU (GPUs, accelerators).
- Another fix to the VFIO code used by KVM, the previous fix had some
bugs which caused guests to not start in some configurations.
- A handful of other minor fixes.
Thanks to: Aneesh Kumar K.V, Benjamin Herrenschmidt, Christophe Leroy,
Hari Bathini, Luke Dashjr, Mahesh Salgaonkar, Nicholas Piggin, Paul
Mackerras, Srikar Dronamraju.
* tag 'powerpc-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mce: Fix SLB rebolting during MCE recovery path.
KVM: PPC: Book3S: Fix guest DMA when guest partially backed by THP pages
powerpc/mm/radix: Only need the Nest MMU workaround for R -> RW transition
powerpc/mm/books3s: Add new pte bit to mark pte temporarily invalid.
powerpc/nohash: fix pte_access_permitted()
powerpc/topology: Get topology for shared processors at boot
powerpc64/ftrace: Include ftrace.h needed for enable/disable calls
powerpc/powernv/pci: Work around races in PCI bridge enabling
powerpc/fadump: cleanup crash memory ranges support
powerpc/powernv: provide a console flush operation for opal hvc driver
powerpc/traps: Avoid rate limit messages from show unhandled signals
powerpc/64s: Fix PACA_IRQ_HARD_DIS accounting in idle_power4()
Pull s390 updates from Martin Schwidefsky:
- A couple of patches for the zcrypt driver:
+ Add two masks to determine which AP cards and queues are host
devices, this will be useful for KVM AP device passthrough
+ Add-on patch to improve the parsing of the new apmask and aqmask
+ Some code beautification
- Second try to reenable the GCC plugins, the first patch set had a
patch to do this but the merge somehow missed this
- Remove the s390 specific GCC version check and use the generic one
- Three patches for kdump, two bug fixes and one cleanup
- Three patches for the PCI layer, one bug fix and two cleanups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: remove gcc version check (4.3 or newer)
s390/zcrypt: hex string mask improvements for apmask and aqmask.
s390/zcrypt: AP bus support for alternate driver(s)
s390/zcrypt: code beautify
s390/zcrypt: switch return type to bool for ap_instructions_available()
s390/kdump: Remove kzalloc_panic
s390/kdump: Fix memleak in nt_vmcoreinfo
s390/kdump: Make elfcorehdr size calculation ABI compliant
s390/pci: remove fmb address from debug output
s390/pci: remove stale rc
s390/pci: fix out of bounds access during irq setup
s390/zcrypt: fix ap_instructions_available() returncodes
s390: reenable gcc plugins for real
Pull namespace fixes from Eric Biederman:
"This is a set of four fairly obvious bug fixes:
- a switch from d_find_alias to d_find_any_alias because the xattr
code perversely takes a dentry
- two mutex vs copy_to_user fixes from Jann Horn
- a fix to use a sanitized size not the size userspace passed in from
Christian Brauner"
* 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
getxattr: use correct xattr length
sys: don't hold uts_sem while accessing userspace memory
userns: move user access out of the mutex
cap_inode_getsecurity: use d_find_any_alias() instead of d_find_alias()
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Merge tag 'drm-next-2018-08-24' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Just a couple of fixes"
One MAINTAINERS address change, two panels fixes, and set of amdgpu
fixes (build fixes, display fixes and some others)"
* tag 'drm-next-2018-08-24' of git://anongit.freedesktop.org/drm/drm:
drm/edid: Add 6 bpc quirk for SDC panel in Lenovo B50-80
drm/amd/display: Don't build DCN1 when kcov is enabled
Revert "drm/amdgpu/display: Replace CONFIG_DRM_AMD_DC_DCN1_0 with CONFIG_X86"
drm/amdgpu/display: disable eDP fast boot optimization on DCE8
drm/amdgpu: fix amdgpu_amdkfd_remove_eviction_fence v3
drm/amdgpu: fix incorrect use of drm_file->pid
drm/amdgpu: fix incorrect use of fcheck
drm/powerplay: enable dpm under pass-through
drm/amdgpu: access register without KIQ
drm/amdgpu: set correct base for THM/NBIF/MP1 IP
drm/amd/display: fix dentist did ranges
drm/amd/display: make dp_ss_off optional
drm/amd/display: fix dp_ss_control vbios flag parsing
drm/amd/display: Do not retain link settings
MAINTAINERS: drm-misc: Change seanpaul's email address
drm/panel: simple: tv123wam: Add unprepare delay
Pull second i2c update from Wolfram Sang:
"As promised, here is my 2nd pull request for I2C, containing:
- removal of the attach_adapter callback, converting its last user
- removal of any __deprecated usage within I2C
- one email address update
- some SPDX conversion"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: don't use any __deprecated handling anymore
i2c: use SPDX identifier for Renesas drivers
i2c: ocores: update my email address
i2c: remove deprecated attach_adapter callback
macintosh: therm_windtunnel: drop using attach_adapter
Commit 9b10df596b ("i40e: use WARN_ONCE to replace the commented
BUG_ON size check") introduced a warning check to make sure
that the size of the stat strings was always the expected value. This
code accidentally inverted the check of the data pointer. Fix this so
that we accurately count the size of the stats we copied in.
This fixes an erroneous WARN kernel splat that occurs when requesting
ethtool statistics.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Tested-by: Mauro S M Rodrigues <maurosr@linux.vnet.ibm.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
If interface is connected to switch port configured for DCB there are
TX timeouts when bringing up interface. Problem started appearing after
adding in i40e driver code mqprio hardware offload mode. In function
i40e_vsi_configure_bw_alloc was added resetting BW rate which should
be executing when mqprio qdisc is removed but was also when there was
no mqprio qdisc added and DCB was enabled. In this patch was added
additional check for DCB flag so now when DCB is enabled the correct
DCB configs from before mqprio patch are restored.
Signed-off-by: Martyna Szapar <martyna.szapar@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Since VFLR doesn't clear VFMBMEM (VF Mailbox Memory)
and is not re-enabling queues correctly we should fix
this behavior.
Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
These changes address comments by Jakub Kicinski on
commit 38b7e7f8ae ("ixgbe: Do not allow LRO or MTU change with XDP").
Change the MTU check with XDP to allow any supported value and only
reject those outside of the range as opposed to rejecting any change
when XDP is active. In situations where MTU size is not supported,
return -EINVAL instead of -EPERM.
Add checks when enabling SRIOV, DCB, or adding L2FW offloaded device
as they are not supported with XDP.
CC: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
ixgbe_fcoe_ddp_setup(), ixgbe_setup_fcoe_ddp_resources() and
ixgbe_sw_init() are never called in atomic context.
They call kmalloc(), dma_pool_alloc() and kzalloc() with GFP_ATOMIC,
which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Acked-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
igb_integrated_phy_loopback() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep().
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
igb_sw_init() is never called in atomic context.
It calls kzalloc() and kcalloc() with GFP_ATOMIC, which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
On i210, Launchtime (TxTime) requires the usage of an "Advanced
Transmit Context Descriptor" for retrieving the timestamp of a packet.
The igb driver correctly builds such descriptor on the segmentation
flow (i.e. igb_tso()) or on the checksum one (i.e. igb_tx_csum()), but the
feature is broken for AF_PACKET if the IGB_TX_FLAGS_VLAN is not set,
which happens due to an early return on igb_tx_csum().
This flag is only set by the kernel when a VLAN interface is used,
thus we can't just rely on it. Here we are fixing this issue by checking
if launchtime is enabled for the current tx_ring before performing the
early return.
Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In 'e1000_set_ringparam()', the tx_ring and rx_ring are updated with new value
and the old tx/rx rings are freed only when the device is up. There are resource
leaks on old tx/rx rings when the device is not up. This bug is reported by COD,
a tool for testing kernel module binaries I am building.
This patch fixes the bug by always calling 'kfree()' on old tx/rx rings in
'e1000_set_ringparam()'.
Signed-off-by: Bo Chen <chenbo@pdx.edu>
Reviewed-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When the device is not up, the call to 'e1000_up()' from the error handling path
of 'e1000_set_ringparam()' causes a kernel oops with a null-pointer
dereference. The null-pointer dereference is triggered in function
'e1000_alloc_rx_buffers()' at line 'buffer_info = &rx_ring->buffer_info[i]'.
This bug was reported by COD, a tool for testing kernel module binaries I am
building. This bug was also detected by KFI from Dr. Kai Cong.
This patch fixes the bug by checking on 'netif_running()' before calling
'e1000_up()' in 'e1000_set_ringparam()'.
Signed-off-by: Bo Chen <chenbo@pdx.edu>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Use dma_zalloc_coherent instead of dma_alloc_coherent
followed by memset 0.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Enabling the interrupt early, before power has been applied to the
device, can result in an interrupt being delivered too early if:
- the IOMMU shares an interrupt with a VOP
- the VOP has a pending interrupt (after a kexec, for example)
In these conditions, we end-up taking the interrupt without
the IOMMU being ready to handle the interrupt (not powered on).
Moving the interrupt request past the pm_runtime_enable() call
makes sure we can at least access the IOMMU registers. Note that
this is only a partial fix, and that the VOP interrupt will still
be screaming until the VOP driver kicks in, which advocates for
a more synchronized interrupt enabling/disabling approach.
Fixes: 0f181d3cf7 ("iommu/rockchip: Add runtime PM support")
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
pm_runtime_get_if_in_use can fail: either PM has been disabled
altogether (-EINVAL), or the device hasn't been enabled yet (0).
Sadly, the Rockchip IOMMU driver tends to conflate the two things
by considering a non-zero return value as successful.
This has the consequence of hiding other bugs, so let's handle this
case throughout the driver, with a WARN_ON_ONCE so that we can try
and work out what happened.
Fixes: 0f181d3cf7 ("iommu/rockchip: Add runtime PM support")
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
A number of the Rockchip-specific drivers (IOMMU, display controllers)
are now assuming that CONFIG_PM is set, and may completely misbehave
if that's not the case.
Since there is hardly any reason for this configuration option not
to be selected anyway, let's require it (in the same way Tegra already
does).
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
A number of the Rockchip-specific drivers (IOMMU, display controllers)
are now assuming that CONFIG_PM is set, and may completely misbehave
if that's not the case.
Since there is hardly any reason for this configuration option not
to be selected anyway, let's require it (in the same way Tegra already
does).
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The idle-states binding documentation[1] mentions that the
'entry-method' property is required on 64-bit platforms and must be
set to "psci".
commit a13f18f59d ("Documentation: arm: Fix typo in the idle-states
bindings examples") attempted to fix this earlier but clearly more is
needed.
Fix the cpu-capacity.txt documentation that uses the incorrect value so
we don't get copy-paste errors like these. Clarify the language in
idle-states.txt by removing the reference to the psci bindings that
might be causing this confusion.
Finally, fix devicetrees of various boards to reflect current
documentation.
[1] Documentation/devicetree/bindings/arm/idle-states.txt (see
idle-states node)
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This tag fixes reset assertion on i.MX7 for all non-inverted reset
control bits. Currently only PCIE controller and PHY resets are used.
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Merge tag 'reset-fixes-for-4.18' of git://git.pengutronix.de/git/pza/linux into next/late
Reset controller fixes for v4.18
This tag fixes reset assertion on i.MX7 for all non-inverted reset
control bits. Currently only PCIE controller and PHY resets are used.
* tag 'reset-fixes-for-4.18' of git://git.pengutronix.de/git/pza/linux:
reset: imx7: Fix always writing bits as 0
Signed-off-by: Olof Johansson <olof@lixom.net>
This adds a single new driver for the Amlogic Meson Audio Memory Arbiter
resets.
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Merge tag 'reset-for-4.19-2' of git://git.pengutronix.de/git/pza/linux into next/late
Reset controller changes for v4.19, part 2
This adds a single new driver for the Amlogic Meson Audio Memory Arbiter
resets.
* tag 'reset-for-4.19-2' of git://git.pengutronix.de/git/pza/linux:
reset: meson: add meson audio arb driver
reset: meson: add dt-bindings for meson-axg audio arb
Signed-off-by: Olof Johansson <olof@lixom.net>
No new features but a bunch of tweaks such as
switching balloon from oom notifier to shrinker.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
"virtio, vhost: fixes, tweaks
No new features but a bunch of tweaks such as switching balloon from
oom notifier to shrinker"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost/scsi: increase VHOST_SCSI_PREALLOC_PROT_SGLS to 2048
vhost: allow vhost-scsi driver to be built-in
virtio: pci-legacy: Validate queue pfn
virtio: mmio-v1: Validate queue PFN
virtio_balloon: replace oom notifier with shrinker
virtio-balloon: kzalloc the vb struct
virtio-balloon: remove BUG() in init_vqs
This can be dropped with commit 771c035372
("deprecate the '__deprecated' attribute warnings entirely and for good")
now in upstream.
And we got rid of the last __deprecated use, too.
Signed-off-by: Sedat Dilek <sedat.dilek@credativ.de>
[wsa: shortened commit message to reflect the current situation]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Two users have reported [1] that they have an "extremely unlikely" system
with more than MAX_PA/2 memory and L1TF mitigation is not effective.
Make the warning more helpful by suggesting the proper mem=X kernel boot
parameter to make it effective and a link to the L1TF document to help
decide if the mitigation is worth the unusable RAM.
[1] https://bugzilla.suse.com/show_bug.cgi?id=1105536
Suggested-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/966571f0-9d7f-43dc-92c6-a10eec7a1254@suse.cz
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
The old @sunsite.dk address is no longer active, so update the references.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
There aren't any users left. Remove this callback from the 2.4 times.
Phew, finally, that took years to reach...
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
As we now have deferred probing, we can use a custom mechanism and
finally get rid of the legacy interface from the i2c core.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
This empty file sneaked into the tree by mistake.
Remove it.
Fixes: 6eb61d587f ("ubifs: Pass struct ubifs_info to ubifs_assert()")
Signed-off-by: Richard Weinberger <richard@nod.at>
Two users have reported [1] that they have an "extremely unlikely" system
with more than MAX_PA/2 memory and L1TF mitigation is not effective. In
fact it's a CPU with 36bits phys limit (64GB) and 32GB memory, but due to
holes in the e820 map, the main region is almost 500MB over the 32GB limit:
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000081effffff] usable
Suggestions to use 'mem=32G' to enable the L1TF mitigation while losing the
500MB revealed, that there's an off-by-one error in the check in
l1tf_select_mitigation().
l1tf_pfn_limit() returns the last usable pfn (inclusive) and the range
check in the mitigation path does not take this into account.
Instead of amending the range check, make l1tf_pfn_limit() return the first
PFN which is over the limit which is less error prone. Adjust the other
users accordingly.
[1] https://bugzilla.suse.com/show_bug.cgi?id=1105536
Fixes: 17dbca1193 ("x86/speculation/l1tf: Add sysfs reporting for l1tf")
Reported-by: George Anchev <studio@anchev.net>
Reported-by: Christopher Snowhill <kode54@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180823134418.17008-1-vbabka@suse.cz
Daniel Borkmann says:
====================
pull-request: bpf 2018-08-24
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix BPF sockmap and tls where we get a hang in do_tcp_sendpages()
when sndbuf is full due to missing calls into underlying socket's
sk_write_space(), from John.
2) Two BPF sockmap fixes to reject invalid parameters on map creation
and to fix a map element miscount on allocation failure. Another fix
for BPF hash tables to use per hash table salt for jhash(), from Daniel.
3) Fix for bpftool's command line parsing in order to terminate on bad
arguments instead of keeping looping in some border cases, from Quentin.
4) Fix error value of xdp_umem_assign_dev() in order to comply with
expected bind ops error codes, from Prashant.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Kai-Heng Feng <kai.heng.feng@canonical.com>
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Merge tag 'drm-misc-next-fixes-2018-08-23-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
- Add quirk to Lenovo B50-80 to use 6 bpc instead of 8 (Feng)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20180823205434.GA137644@art_vandelay
Merge yet more updates from Andrew Morton:
- the rest of MM
- various misc fixes and tweaks
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
mm: Change return type int to vm_fault_t for fault handlers
lib/fonts: convert comments to utf-8
s390: ebcdic: convert comments to UTF-8
treewide: convert ISO_8859-1 text comments to utf-8
drivers/gpu/drm/gma500/: change return type to vm_fault_t
docs/core-api: mm-api: add section about GFP flags
docs/mm: make GFP flags descriptions usable as kernel-doc
docs/core-api: split memory management API to a separate file
docs/core-api: move *{str,mem}dup* to "String Manipulation"
docs/core-api: kill trailing whitespace in kernel-api.rst
mm/util: add kernel-doc for kvfree
mm/util: make strndup_user description a kernel-doc comment
fs/proc/vmcore.c: hide vmcoredd_mmap_dumps() for nommu builds
treewide: correct "differenciate" and "instanciate" typos
fs/afs: use new return type vm_fault_t
drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t
mm: soft-offline: close the race against page allocation
mm: fix race on soft-offlining free huge pages
namei: allow restricted O_CREAT of FIFOs and regular files
hfs: prevent crash on exit from failed search
...