Here are 3 firmware core fixes for 4.13-rc5.
All three of these fix reported issues and have been floating around for
a few weeks. They have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are three firmware core fixes for 4.13-rc5.
All three of these fix reported issues and have been floating around
for a few weeks. They have been in linux-next with no reported
problems"
* tag 'driver-core-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
firmware: avoid invalid fallback aborts by using killable wait
firmware: fix batched requests - send wake up on failure on direct lookups
firmware: fix batched requests - wake all waiters
Here are two patches for 4.13-rc5.
One is a fix for a reported thunderbolt issue, and the other a fix for
an MEI driver issue. Both have been in linux-next with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are two patches for 4.13-rc5.
One is a fix for a reported thunderbolt issue, and the other a fix for
an MEI driver issue. Both have been in linux-next with no reported
issues"
* tag 'char-misc-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
thunderbolt: Do not enumerate more ports from DROM than the controller has
mei: exclude device from suspend direct complete optimization
Here are two tty serial driver fixes for 4.13-rc5. One is a revert of a
-rc1 patch that turned out to not be a good idea, and the other is a fix
for the pl011 serial driver.
Both have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are two tty serial driver fixes for 4.13-rc5. One is a revert of
a -rc1 patch that turned out to not be a good idea, and the other is a
fix for the pl011 serial driver.
Both have been in linux-next with no reported issues"
* tag 'tty-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "serial: Delete dead code for CIR serial ports"
tty: pl011: fix initialization order of QDF2400 E44
Here are some Staging and IIO driver fixes for 4.13-rc5.
Nothing major, just a number of small fixes for reported issues. All of
these have been in linux-next for a while now with no reported issues.
Full details are in the shortlog.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/iio fixes from Greg KH:
"Here are some Staging and IIO driver fixes for 4.13-rc5.
Nothing major, just a number of small fixes for reported issues. All
of these have been in linux-next for a while now with no reported
issues. Full details are in the shortlog"
* tag 'staging-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: comedi: comedi_fops: do not call blocking ops when !TASK_RUNNING
iio: aspeed-adc: wait for initial sequence.
iio: accel: bmc150: Always restore device to normal mode after suspend-resume
staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read
iio: adc: axp288: Fix the GPADC pin reading often wrongly returning 0
iio: adc: vf610_adc: Fix VALT selection value for REFSEL bits
iio: accel: st_accel: add SPI-3wire support
iio: adc: Revert "axp288: Drop bogus AXP288_ADC_TS_PIN_CTRL register modifications"
iio: adc: sun4i-gpadc-iio: fix unbalanced irq enable/disable
iio: pressure: st_pressure_core: disable multiread by default for LPS22HB
iio: light: tsl2563: use correct event code
Here are a number of small USB driver fixes and new device ids for
4.13-rc5. There is the usual gadget driver fixes, some new quirks for
"messy" hardware, and some new device ids.
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB driver fixes and new device ids for
4.13-rc5. There is the usual gadget driver fixes, some new quirks for
"messy" hardware, and some new device ids.
All have been in linux-next with no reported issues"
* tag 'usb-4.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: serial: pl2303: add new ATEN device id
usb: quirks: Add no-lpm quirk for Moshi USB to Ethernet Adapter
USB: Check for dropped connection before switching to full speed
usb:xhci:Add quirk for Certain failing HP keyboard on reset after resume
usb: renesas_usbhs: gadget: fix unused-but-set-variable warning
usb: renesas_usbhs: Fix UGCTRL2 value for R-Car Gen3
usb: phy: phy-msm-usb: Fix usage of devm_regulator_bulk_get()
usb: gadget: udc: renesas_usb3: Fix usb_gadget_giveback_request() calling
usb: dwc3: gadget: Correct ISOC DATA PIDs for short packets
USB: serial: option: add D-Link DWM-222 device ID
usb: musb: fix tx fifo flush handling again
usb: core: unlink urbs from the tail of the endpoint's urb_list
usb-storage: fix deadlock involving host lock and scsi_done
uas: Add US_FL_IGNORE_RESIDUE for Initio Corporation INIC-3069
USB: hcd: Mark secondary HCD as dead if the primary one died
USB: serial: cp210x: add support for Qivicon USB ZigBee dongle
Pull clockevents fixes from Daniel Lezcano:
" - Fix error check against IS_ERR() instead of NULL for the timer-of code (Dan Carpenter)
- Fix infinite recusion with ftrace for the ARM architected timer (Ding Tianhong)
- Fix the error code return in the em_sti's probe function (Gustavo A. R. Silva)
- Fix Kconfig dependency for the pistachio driver (Matt Redfearn)
- Fix mem frame loop initialization for the ARM architected timer (Matthias Kaehlcke)"
Signed-off-by: Ingo Molnar <mingo@kernel.org>
An mtdblock regression occurred in -rc1 (all writes were broken!), in the
process of some block subsystem refactoring. Noticed and fixed last week, but
I'm a little slow on the uptake.
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Merge tag 'for-linus-20170812' of git://git.infradead.org/linux-mtd
Pull another MTD fix from Brian Norris:
"An mtdblock regression occurred in -rc1 (all writes were broken!), in
the process of some block subsystem refactoring. Noticed and fixed
last week, but I'm a little slow on the uptake"
* tag 'for-linus-20170812' of git://git.infradead.org/linux-mtd:
mtd: blkdevs: Fix mtd block write failure
All the MTD block write requests are failing with
following error messages
mkfs.ext4 /dev/mtdblock0
print_req_error: I/O error, dev mtdblock0, sector 0
Buffer I/O error on dev mtdblock0, logical block 0,
lost async page write
The control is going to default case after block write request
because of missing return.
Fixes: commit 2a842acab1 ("block: introduce new block status code type")
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Merge tag 'for-linus-4.13b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Some fixes for Xen:
- a fix for a regression introduced in 4.13 for a Xen HVM-guest
configured with KASLR
- a fix for a possible deadlock in the xenbus driver when booting the
system
- a fix for lost interrupts in Xen guests"
* tag 'for-linus-4.13b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/events: Fix interrupt lost during irq_disable and irq_enable
xen: avoid deadlock in xenbus
xen: fix hvm guest with kaslr enabled
xen: split up xen_hvm_init_shared_info()
x86: provide an init_mem_mapping hypervisor hook
->safemode should be triggered by mdadm for external metadaa array, otherwise
array's state confuses mdadm.
Fixes: 33182d15c6bf(md: always clear ->safemode when md_check_recovery gets the mddev lock.)
Cc: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Fix the min_t calls in the zeroing and dirtying helpers to perform the
comparisms on 64-bit types, which prevents them from incorrectly
being truncated, and larger zeroing operations being stuck in a never
ending loop.
Special thanks to Markus Stockhausen for spotting the bug.
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
When we try to allocate a free inode by searching the inobt, we try to
find the inode nearest the parent inode by searching chunks both left
and right of the chunk containing the parent. As an optimization, we
cache the leftmost and rightmost records that we previously searched; if
we do another allocation with the same parent inode, we'll pick up the
search where it last left off.
There's a bug in the case where we found a free inode to the left of the
parent's chunk: we need to update the cached left and right records, but
because we already reassigned the right record to point to the left, we
end up assigning the left record to both the cached left and right
records.
This isn't a correctness problem strictly, but it can result in the next
allocation rechecking chunks unnecessarily or allocating inodes further
away from the parent than it needs to. Fix it by swapping the record
pointer after we update the cached left and right records.
Fixes: bd16956599 ("xfs: speed up free inode search")
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Daniel Borkmann says:
====================
bpf: Minor fix in bpf_convert_ctx_access
First one was found while trying to compile the kernel
with !CONFIG_NET_RX_BUSY_POLL.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When CONFIG_NET_SCHED or CONFIG_NET_RX_BUSY_POLL is /not/ set and
we try a narrow __sk_buff load of tc_index or napi_id, respectively,
then verifier rightfully complains that it's misconfigured, because
we need to set target_size in each of the two cases. The rewrite
for the ctx access is just a dummy op, but needs to pass, so fix
this up.
Fixes: f96da09473 ("bpf: simplify narrower ctx access")
Reported-by: Shubham Bansal <illusionist.neo@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
MIN_NAPI_ID is used in various places outside of
CONFIG_NET_RX_BUSY_POLL wrapping, so when it's not set
we run into build errors such as:
net/core/dev.c: In function 'dev_get_by_napi_id':
net/core/dev.c:886:16: error: ‘MIN_NAPI_ID’ undeclared (first use in this function)
if (napi_id < MIN_NAPI_ID)
^~~~~~~~~~~
Thus, have MIN_NAPI_ID always defined to fix these errors.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
If mISDN_FsmNew() fails to allocate memory for jumpmatrix
then null pointer dereference will occur on any write to
jumpmatrix.
The patch adds check on successful allocation and
corresponding error handling.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Flower app may receive a request to update the MTU of a representor
netdev upon receipt of a control message from the firmware. This requires
the RTNL lock which needs to be taken outside of the packet processing
path.
As a handling of this correctly seems a little to invasive for a fix simply
skip setting the MTU for now.
Relevant backtrace:
[ 1496.288489] BUG: scheduling while atomic: kworker/0:3/373/0x00000100
[ 1496.294911] dca syscopyarea sysfillrect sysimgblt fb_sys_fops ptp drm mxm_wmi ahci pps_core libahci i2c_algo_bit wmi [last unloaded: nfp]
[ 1496.294918] CPU: 0 PID: 373 Comm: kworker/0:3 Tainted: G OE 4.13.0-rc3+ #3
[ 1496.294919] Hardware name: Supermicro X10DRi/X10DRi, BIOS 2.0 12/28/2015
[ 1496.294923] Workqueue: events work_for_cpu_fn
[ 1496.294924] Call Trace:
[ 1496.294927] <IRQ>
[ 1496.294931] dump_stack+0x63/0x82
[ 1496.294935] __schedule_bug+0x54/0x70
[ 1496.294937] __schedule+0x62f/0x890
[ 1496.294941] ? intel_unmap_sg+0x90/0x90
[ 1496.294942] schedule+0x36/0x80
[ 1496.294943] schedule_preempt_disabled+0xe/0x10
[ 1496.294945] __mutex_lock.isra.2+0x445/0x4a0
[ 1496.294947] ? device_is_rmrr_locked+0x12/0x50
[ 1496.294950] ? kfree+0x162/0x170
[ 1496.294952] ? device_is_rmrr_locked+0x12/0x50
[ 1496.294953] ? iommu_should_identity_map+0x50/0xe0
[ 1496.294954] __mutex_lock_slowpath+0x13/0x20
[ 1496.294955] ? iommu_no_mapping+0x48/0xd0
[ 1496.294956] ? __mutex_lock_slowpath+0x13/0x20
[ 1496.294957] mutex_lock+0x2f/0x40
[ 1496.294960] rtnl_lock+0x15/0x20
[ 1496.294979] nfp_flower_cmsg_rx+0xc8/0x150 [nfp]
[ 1496.294986] nfp_ctrl_poll+0x286/0x350 [nfp]
[ 1496.294989] tasklet_action+0xf6/0x110
[ 1496.294992] __do_softirq+0xed/0x278
[ 1496.294993] irq_exit+0xb6/0xc0
[ 1496.294994] do_IRQ+0x4f/0xd0
[ 1496.294996] common_interrupt+0x89/0x89
Fixes: 948faa46c0 ("nfp: add support for control messages for flower app")
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, the function stmmac_mdio_register() is only used by
stmmac_dvr_probe() from stmmac_main.c, in order to register the MDIO bus
and probe information about the PHY. As this function is called before
calling register_netdev(), all messages logged from stmmac_mdio_register
are prefixed by "(unnamed net_device)". The goal of netdev_info or
netdev_err is to dump useful infos about a net_device, when this data
structure is partially initialized, there is no point for using these
functions.
This commit fixes the issue by replacing all netdev_*() by the
corresponding dev_*() function for logging. The last netdev_info is
replaced by phy_attached_info(), as a valid phydev can be used at this
point.
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Without this filters cannot be attached.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: 6529eaba33 ("net: sched: introduce tcf block infractructure")
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The patch c4adfc822b ("bonding: make speed, duplex setting consistent
with link state") puts the link state to down if
bond_update_speed_duplex() cannot retrieve speed and duplex settings.
Assumably the patch was written with 802.3ad mode in mind which relies
on link speed/duplex settings. For other modes like active-backup these
settings are not required. Thus, only for these other modes, this patch
reintroduces support for slaves that do not support reporting speed or
duplex such as wireless devices. This fixes the regression reported in
bug 196547 (https://bugzilla.kernel.org/show_bug.cgi?id=196547).
Fixes: c4adfc822b ("bonding: make speed, duplex setting consistent
with link state")
Signed-off-by: Andreas Born <futur.andy@googlemail.com>
Acked-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The DSA layer frees the original skb when an xmit function returns NULL,
meaning an error occurred. But if the tagging code copied the original
skb, it is responsible of freeing the copy if an error occurs.
The ksz tagging code currently has two issues: if skb_put_padto fails,
the skb copy is not freed, and the original skb will be freed twice.
To fix that, move skb_put_padto inside both branches of the skb_tailroom
condition, before freeing the original skb, and free the copy on error.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable fix:
- Fix leaking nfs4_ff_ds_version array
Other fixes:
- Improve TEST_STATEID OLD_STATEID handling to prevent recovery loop
- Require 64-bit sector_t for pNFS blocklayout to prevent 32-bit compile
errors
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Merge tag 'nfs-for-4.13-5' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"A few more NFS client bugfixes from me for rc5.
Dros has a stable fix for flexfiles to prevent leaking the
nfs4_ff_ds_version arrays when freeing a layout, Trond fixed a
potential recovery loop situation with the TEST_STATEID operation, and
Christoph fixed up the pNFS blocklayout Kconfig options to prevent
unsafe use with kernels that don't have large block device support.
Summary:
Stable fix:
- fix leaking nfs4_ff_ds_version array
Other fixes:
- improve TEST_STATEID OLD_STATEID handling to prevent recovery loop
- require 64-bit sector_t for pNFS blocklayout to prevent 32-bit
compile errors"
* tag 'nfs-for-4.13-5' of git://git.linux-nfs.org/projects/anna/linux-nfs:
pnfs/blocklayout: require 64-bit sector_t
NFSv4: Ignore NFS4ERR_OLD_STATEID in nfs41_check_open_stateid()
nfs/flexfiles: fix leak of nfs4_ff_ds_version arrays
Pull block fixes from Jens Axboe:
"A set of fixes that should go into this series. This contains:
- Fix from Bart for blk-mq requeue queue running, preventing a
continued loop of run/restart.
- Fix for a bio/blk-integrity issue, in two parts. One from
Christoph, fixing where verification happens, and one from Milan,
for a NULL profile.
- NVMe pull request, most of the changes being for nvme-fc, but also
a few trivial core/pci fixes"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvme: fix directive command numd calculation
nvme: fix nvme reset command timeout handling
nvme-pci: fix CMB sysfs file removal in reset path
lpfc: support nvmet_fc defer_rcv callback
nvmet_fc: add defer_req callback for deferment of cmd buffer return
nvme: strip trailing 0-bytes in wwid_show
block: Make blk_mq_delay_kick_requeue_list() rerun the queue at a quiet time
bio-integrity: only verify integrity on the lowest stacked driver
bio-integrity: Fix regression if profile verify_fn is NULL
Pull fuse fixes from Miklos Szeredi:
"Fix a few bugs in fuse"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: set mapping error in writepage_locked when it fails
fuse: Dont call set_page_dirty_lock() for ITER_BVEC pages for async_dio
fuse: initialize the flock flag in fuse_file on allocation
The blocklayout code does not compile cleanly for a 32-bit sector_t,
and also has no reliable checks for devices sizes, which makes it
unsafe to use with a kernel that doesn't support large block devices.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 5c83746a0c ("pnfs/blocklayout: in-kernel GETDEVICEINFO XDR parsing")
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Host-initiated writes to the IA32_APIC_BASE MSR do not have to follow
local APIC state transition constraints, but the value written must be
valid.
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Bailing out immediately if there is no available mmu page to alloc.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [warn_test:3089]
irq event stamp: 20532
hardirqs last enabled at (20531): [<ffffffff8e9b6908>] restore_regs_and_iret+0x0/0x1d
hardirqs last disabled at (20532): [<ffffffff8e9b7ae8>] apic_timer_interrupt+0x98/0xb0
softirqs last enabled at (8266): [<ffffffff8e9badc6>] __do_softirq+0x206/0x4c1
softirqs last disabled at (8253): [<ffffffff8e083918>] irq_exit+0xf8/0x100
CPU: 5 PID: 3089 Comm: warn_test Tainted: G OE 4.13.0-rc3+ #8
RIP: 0010:kvm_mmu_prepare_zap_page+0x72/0x4b0 [kvm]
Call Trace:
make_mmu_pages_available.isra.120+0x71/0xc0 [kvm]
kvm_mmu_load+0x1cf/0x410 [kvm]
kvm_arch_vcpu_ioctl_run+0x1316/0x1bf0 [kvm]
kvm_vcpu_ioctl+0x340/0x700 [kvm]
? kvm_vcpu_ioctl+0x340/0x700 [kvm]
? __fget+0xfc/0x210
do_vfs_ioctl+0xa4/0x6a0
? __fget+0x11d/0x210
SyS_ioctl+0x79/0x90
entry_SYSCALL_64_fastpath+0x23/0xc2
? __this_cpu_preempt_check+0x13/0x20
This can be reproduced readily by ept=N and running syzkaller tests since
many syzkaller testcases don't setup any memory regions. However, if ept=Y
rmode identity map will be created, then kvm_mmu_calculate_mmu_pages() will
extend the number of VM's mmu pages to at least KVM_MIN_ALLOC_MMU_PAGES
which just hide the issue.
I saw the scenario kvm->arch.n_max_mmu_pages == 0 && kvm->arch.n_used_mmu_pages == 1,
so there is one active mmu page on the list, kvm_mmu_prepare_zap_page() fails
to zap any pages, however prepare_zap_oldest_mmu_page() always returns true.
It incurs infinite loop in make_mmu_pages_available() which causes mmu->lock
softlockup.
This patch fixes it by setting the return value of prepare_zap_oldest_mmu_page()
according to whether or not there is mmu page zapped.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Let's reuse the function introduced with eptp switching.
We don't explicitly have to check against enable_ept_ad_bits, as this
is implicitly done when checking against nested_vmx_ept_caps in
valid_ept_address().
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Remove nonexistent files, allow less awkward expressions when
extracting arch-specific information, and only return relevant
information when using arch-specific expressions. Additionally
add include/trace/events/kvm.h, arch/*/include/uapi/asm/kvm*,
and arch/powerpc/kernel/kvm* to appropriate sections. The arch-
specific expressions are now:
/KVM/ -- All KVM
/\(KVM\)|\(KVM\/x86\)/ -- X86
/\(KVM\)|\(KVM\/x86\)|\(KVM\/amd\)/ -- X86 plus AMD
/\(KVM\)|\(KVM\/arm\)/ -- ARM
/\(KVM\)|\(KVM\/arm\)|\(KVM\/arm64\)/ -- ARM plus ARM64
/\(KVM\)|\(KVM\/powerpc\)/ -- POWERPC
/\(KVM\)|\(KVM\/s390\)/ -- S390
/\(KVM\)|\(KVM\/mips\)/ -- MIPS
Signed-off-by: Andrew Jones <drjones@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All fixes for code that went in this cycle.
- A revert of an optimisation to the syscall exit path, which could lead to an
oops on either older machines or machines with > 1T of memory.
- Disable some deep idle states if the firmware configuration for them fails.
- Re-enable HARD/SOFT lockup detectors in defconfigs after a Kconfig change.
- Six fairly small patches fixing bugs in our new watchdog code.
Thanks to:
Gautham R. Shenoy, Nicholas Piggin.
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Merge tag 'powerpc-4.13-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"All fixes for code that went in this cycle.
- a revert of an optimisation to the syscall exit path, which could
lead to an oops on either older machines or machines with > 1TB of
memory
- disable some deep idle states if the firmware configuration for
them fails
- re-enable HARD/SOFT lockup detectors in defconfigs after a Kconfig
change
- six fairly small patches fixing bugs in our new watchdog code
Thanks to: Gautham R Shenoy, Nicholas Piggin"
* tag 'powerpc-4.13-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/watchdog: add locking around init/exit functions
powerpc/watchdog: Fix marking of stuck CPUs
powerpc/watchdog: Fix final-check recovered case
powerpc/watchdog: Moderate touch_nmi_watchdog overhead
powerpc/watchdog: Improve watchdog lock primitive
powerpc: NMI IPI improve lock primitive
powerpc/configs: Re-enable HARD/SOFT lockup detectors
powerpc/powernv/idle: Disable LOSE_FULL_CONTEXT states when stop-api fails
Revert "powerpc/64: Avoid restore_math call if possible in syscall exit"
Fix compile error due to ksft_exit_skip() update to take var_args.
freq-step.c: In function ‘init_test’:
freq-step.c:234:3: error: too few arguments to function ‘ksft_exit_skip’
ksft_exit_skip();
^~~~~~~~~~~~~~
In file included from freq-step.c:26:0:
../kselftest.h:167:19: note: declared here
static inline int ksft_exit_skip(const char *msg, ...)
^~~~~~~~~~~~~~
<builtin>: recipe for target 'freq-step' failed
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Commit c54451a "iommu/arm-smmu: Fix the error path in arm_smmu_add_device"
removed fwspec assignment in legacy_binding path as redundant which is
wrong. It needs to be updated after fwspec initialisation in
arm_smmu_register_legacy_master() as it is dereferenced later. Without
this there is a NULL-pointer dereference panic during boot on some hosts.
Signed-off-by: Artem Savkov <asavkov@redhat.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Here is a device has xen-pirq-MSI interrupt. Dom0 might lost interrupt
during driver irq_disable/irq_enable. Here is the scenario,
1. irq_disable -> disable_dynirq -> mask_evtchn(irq channel)
2. dev interrupt raised by HW and Xen mark its evtchn as pending
3. irq_enable -> startup_pirq -> eoi_pirq ->
clear_evtchn(channel of irq) -> clear pending status
4. consume_one_event process the irq event without pending bit assert
which result in interrupt lost once
5. No HW interrupt raising anymore.
Now use enable_dynirq for enable_pirq of xen_pirq_chip to remove
eoi_pirq when irq_enable.
Signed-off-by: Liu Shuo <shuo.a.liu@intel.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
When starting the xenwatch thread a theoretical deadlock situation is
possible:
xs_init() contains:
task = kthread_run(xenwatch_thread, NULL, "xenwatch");
if (IS_ERR(task))
return PTR_ERR(task);
xenwatch_pid = task->pid;
And xenwatch_thread() does:
mutex_lock(&xenwatch_mutex);
...
event->handle->callback();
...
mutex_unlock(&xenwatch_mutex);
The callback could call unregister_xenbus_watch() which does:
...
if (current->pid != xenwatch_pid)
mutex_lock(&xenwatch_mutex);
...
In case a watch is firing before xenwatch_pid could be set and the
callback of that watch unregisters a watch, then a self-deadlock would
occur.
Avoid this by setting xenwatch_pid in xenwatch_thread().
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
On platforms with an arch timer erratum workaround, it's possible for
arch_timer_reg_read_stable() to recurse into itself when certain
tracing options are enabled, leading to stack overflows and related
problems.
For example, when PREEMPT_TRACER and FUNCTION_GRAPH_TRACER are
selected, it's possible to trigger this with:
$ mount -t debugfs nodev /sys/kernel/debug/
$ echo function_graph > /sys/kernel/debug/tracing/current_tracer
The problem is that in such cases, preempt_disable() instrumentation
attempts to acquire a timestamp via trace_clock(), resulting in a call
back to arch_timer_reg_read_stable(), and hence recursion.
This patch changes arch_timer_reg_read_stable() to use
preempt_{disable,enable}_notrace(), which avoids this.
This problem is similar to the fixed by upstream commit 96b3d28bf4
("sched/clock: Prevent tracing recursion in sched_clock_cpu()").
Fixes: 6acc71ccac ("arm64: arch_timer: Allows a CPU-specific erratum to only affect a subset of CPUs")
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
A Xen HVM guest running with KASLR enabled will die rather soon today
because the shared info page mapping is using va() too early. This was
introduced by commit a5d5f328b0 ("xen:
allocate page for shared info page from low memory").
In order to fix this use early_memremap() to get a temporary virtual
address for shared info until va() can be used safely.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Instead of calling xen_hvm_init_shared_info() on boot and resume split
it up into a boot time function searching for the pfn to use and a
mapping function doing the hypervisor mapping call.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Provide a hook in hypervisor_x86 called after setting up initial
memory mapping.
This is needed e.g. by Xen HVM guests to map the hypervisor shared
info page.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Mark a couple of structures and functions as 'static', pointed out by Sparse:
warning: symbol 'bts_pmu' was not declared. Should it be static?
warning: symbol 'p4_event_aliases' was not declared. Should it be static?
warning: symbol 'rapl_attr_groups' was not declared. Should it be static?
symbol 'process_uv2_message' was not declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Andrew Banman <abanman@hpe.com> # for the UV change
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: kernel-janitors@vger.kernel.org
Link: http://lkml.kernel.org/r/20170810155709.7094-1-colin.king@canonical.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
"virtual_vmload_vmsave" is what is going to land in /proc/cpuinfo now
as per v4.13-rc4, for a single feature bit which is clearly too long.
So rename it to what it is called in the processor manual.
"v_vmsave_vmload" is a bit shorter, after all.
We could go more aggressively here but having it the same as in the
processor manual is advantageous.
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Radim Krčmář <rkrcmar@redhat.com>
Cc: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Cc: Jörg Rödel <joro@8bytes.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kvm-ML <kvm@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170801185552.GA3743@nazgul.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
In v4.13, CLKSRC_PISTACHIO can select TIMER_OF on architectures without
GENERIC_CLOCKEVENTS, resulting in a struct clock_event_device missing
some required features and build breakage compiling timer_of.c. One of
the symbols selecting TIMER_OF is CLKSRC_PISTACHIO, so add the
dependency on GENERIC_CLOCKEVENTS.
Thanks to kbuild test robot for finding this error
(https://lkml.org/lkml/2017/7/16/249)
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Suggested-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
The current code checks the return value of the of_io_request_and_map()
function as it was returning a NULL pointer in case of error.
However, it returns an error code encoded in the pointer return value, not a
NULL value. Fix this by checking the returned pointer against IS_ERR() and
return the error with PTR_ERR().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This ensures that we see errors on fsync when writeback fails.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
