Pull networking fixes from David Miller:
1) Clear congestion control state when changing algorithms on an
existing socket, from Florian Westphal.
2) Fix register bit values in altr_tse_pcs portion of stmmac driver,
from Jia Jie Ho.
3) Fix PTP handling in stammc driver for GMAC4, from Giuseppe
CAVALLARO.
4) Fix udplite multicast delivery handling, it ignores the udp_table
parameter passed into the lookups, from Pablo Neira Ayuso.
5) Synchronize the space estimated by rtnl_vfinfo_size and the space
actually used by rtnl_fill_vfinfo. From Sabrina Dubroca.
6) Fix memory leak in fib_info when splitting nodes, from Alexander
Duyck.
7) If a driver does a napi_hash_del() explicitily and not via
netif_napi_del(), it must perform RCU synchronization as needed. Fix
this in virtio-net and bnxt drivers, from Eric Dumazet.
8) Likewise, it is not necessary to invoke napi_hash_del() is we are
also doing neif_napi_del() in the same code path. Remove such calls
from be2net and cxgb4 drivers, also from Eric Dumazet.
9) Don't allocate an ID in peernet2id_alloc() if the netns is dead,
from WANG Cong.
10) Fix OF node and device struct leaks in of_mdio, from Johan Hovold.
11) We cannot cache routes in ip6_tunnel when using inherited traffic
classes, from Paolo Abeni.
12) Fix several crashes and leaks in cpsw driver, from Johan Hovold.
13) Splice operations cannot use freezable blocking calls in AF_UNIX,
from WANG Cong.
14) Link dump filtering by master device and kind support added an error
in loop index updates during the dump if we actually do filter, fix
from Zhang Shengju.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
tcp: zero ca_priv area when switching cc algorithms
net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit
ethernet: stmmac: make DWMAC_STM32 depend on it's associated SoC
tipc: eliminate obsolete socket locking policy description
rtnl: fix the loop index update error in rtnl_dump_ifinfo()
l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind()
net: macb: add check for dma mapping error in start_xmit()
rtnetlink: fix FDB size computation
netns: fix get_net_ns_by_fd(int pid) typo
af_unix: conditionally use freezable blocking calls in read
net: ethernet: ti: cpsw: fix fixed-link phy probe deferral
net: ethernet: ti: cpsw: add missing sanity check
net: ethernet: ti: cpsw: fix secondary-emac probe error path
net: ethernet: ti: cpsw: fix of_node and phydev leaks
net: ethernet: ti: cpsw: fix deferred probe
net: ethernet: ti: cpsw: fix mdio device reference leak
net: ethernet: ti: cpsw: fix bad register access in probe error path
net: sky2: Fix shutdown crash
cfg80211: limit scan results cache size
net sched filters: pass netlink message flags in event notification
...
We need to zero out the private data area when application switches
connection to different algorithm (TCP_CONGESTION setsockopt).
When congestion ops get assigned at connect time everything is already
zeroed because sk_alloc uses GFP_ZERO flag. But in the setsockopt case
this contains whatever previous cc placed there.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The tc could return NET_XMIT_CN as one congestion notification, but
it does not mean the packe is lost. Other modules like ipvlan,
macvlan, and others treat NET_XMIT_CN as success too.
So l2tp_eth_dev_xmit should add the NET_XMIT_CN check.
Signed-off-by: Gao Feng <gfree.wind@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's not much point, except compile test, enabling the stmmac
platform drivers unless the STM32 SoC is enabled. It's not
useful without it.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull ARM fixes from Russell King:
"A few more ARM fixes:
- the assembly backtrace code suffers problems with the new printk()
implementation which assumes that kernel messages without KERN_CONT
should have newlines inserted between them. Fix this.
- fix a section naming error - ".init.text" rather than ".text.init"
- preallocate DMA debug memory at core_initcall() time rather than
fs_initcall(), as we have some core drivers that need to use DMA
mapping - and that triggers a kernel warning from the DMA debug
code.
- fix XIP kernels after the ro_after_init changes made this data
permanently read-only"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: Fix XIP kernels
ARM: 8628/1: dma-mapping: preallocate DMA-debug hash tables in core_initcall
ARM: 8624/1: proc-v7m.S: fix init section name
ARM: fix backtrace
The comment block in socket.c describing the locking policy is
obsolete, and does not reflect current reality. We remove it in this
commit.
Since the current locking policy is much simpler and follows a
mainstream approach, we see no need to add a new description.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the link is filtered out, loop index should also be updated. If not,
loop index will not be correct.
Fixes: dc599f76c2 ("net: Add support for filtering link dump by master device and kind")
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Again a set of smaller fixes across several platforms (OMAP, Marvell,
Allwinner, i.MX, etc).
A handful of typo fixes and smaller missing contents from device trees,
with some tweaks to OMAP mach files to deal with CPU feature print
misformatting, potential NULL ptr dereference and one setup issue
with UARTs.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Again a set of smaller fixes across several platforms (OMAP, Marvell,
Allwinner, i.MX, etc).
A handful of typo fixes and smaller missing contents from device
trees, with some tweaks to OMAP mach files to deal with CPU feature
print misformatting, potential NULL ptr dereference and one setup
issue with UARTs"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ipmi/bt-bmc: change compatible node to 'aspeed, ast2400-ibt-bmc'
ARM: dts: STiH410-b2260: Fix typo in spi0 chipselect definition
ARM: dts: omap5: board-common: fix wrong SMPS6 (VDD-DDR3) voltage
ARM: omap3: Add missing memory node in SOM-LV
arm64: dts: marvell: add unique identifiers for Armada A8k SPI controllers
arm64: dts: marvell: fix clocksource for CP110 slave SPI0
arm64: dts: marvell: Fix typo in label name on Armada 37xx
ASoC: omap-abe-twl6040: fix typo in bindings documentation
dts: omap5: board-common: enable twl6040 headset jack detection
dts: omap5: board-common: add phandle to reference Palmas gpadc
ARM: OMAP2+: avoid NULL pointer dereference
ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask
ARM: dts: omap3: Fix memory node in Torpedo board
ARM: AM43XX: Select OMAP_INTERCONNECT in Kconfig
ARM: OMAP3: Fix formatting of features printed
ARM: dts: imx53-qsb: Fix regulator constraints
ARM: dts: sun8i: fix the pinmux for UART1
panic the kernel) and some fixes for CONFIG_VMAP_STACK.
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Merge tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"A security fix (so a maliciously corrupted file system image won't
panic the kernel) and some fixes for CONFIG_VMAP_STACK"
* tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: sanity check the block and cluster size at mount time
fscrypto: don't use on-stack buffer for key derivation
fscrypto: don't use on-stack buffer for filename encryption
With the new (in 4.9) option to use a virtually-mapped stack
(CONFIG_VMAP_STACK), stack buffers cannot be used as input/output for
the scatterlist crypto API because they may not be directly mappable to
struct page. get_crypt_info() was using a stack buffer to hold the
output from the encryption operation used to derive the per-file key.
Fix it by using a heap buffer.
This bug could most easily be observed in a CONFIG_DEBUG_SG kernel
because this allowed the BUG in sg_set_buf() to be triggered.
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
With the new (in 4.9) option to use a virtually-mapped stack
(CONFIG_VMAP_STACK), stack buffers cannot be used as input/output for
the scatterlist crypto API because they may not be directly mappable to
struct page. For short filenames, fname_encrypt() was encrypting a
stack buffer holding the padded filename. Fix it by encrypting the
filename in-place in the output buffer, thereby making the temporary
buffer unnecessary.
This bug could most easily be observed in a CONFIG_DEBUG_SG kernel
because this allowed the BUG in sg_set_buf() to be triggered.
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Pull i2c fixes from Wolfram Sang:
"Some I2C driver bugfixes (and one documentation fix)"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i2c-mux-pca954x: fix deselect enabling for device-tree
i2c: digicolor: use clk_disable_unprepare instead of clk_unprepare
i2c: mux: fix up dependencies
i2c: Documentation: i2c-topology: fix minor whitespace nit
i2c: mux: demux-pinctrl: make drivers with no pinctrl work again
ARM:
- Fix handling of the 32bit cycle counter
- Fix cycle counter filtering
x86:
- Fix a race leading to double unregistering of user notifiers
- Amend oversight in kvm_arch_set_irq that turned Hyper-V code dead
- Use SRCU around kvm_lapic_set_vapic_addr
- Avoid recursive flushing of asynchronous page faults
- Do not rely on deferred update in KVM_GET_CLOCK, which fixes #GP
- Let userspace know that KVM_GET_CLOCK is useful with master clock;
4.9 changed the return value to better match the guest clock, but
didn't provide means to let guests take advantage of it
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- Fix handling of the 32bit cycle counter
- Fix cycle counter filtering
x86:
- Fix a race leading to double unregistering of user notifiers
- Amend oversight in kvm_arch_set_irq that turned Hyper-V code dead
- Use SRCU around kvm_lapic_set_vapic_addr
- Avoid recursive flushing of asynchronous page faults
- Do not rely on deferred update in KVM_GET_CLOCK, which fixes #GP
- Let userspace know that KVM_GET_CLOCK is useful with master clock;
4.9 changed the return value to better match the guest clock, but
didn't provide means to let guests take advantage of it"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic
KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr
KVM: async_pf: avoid recursive flushing of work items
kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in use
KVM: Disable irq while unregistering user notifier
KVM: x86: do not go through vcpu in __get_kvmclock_ns
KVM: arm64: Fix the issues when guest PMCCFILTR is configured
arm64: KVM: pmu: Fix AArch32 cycle counter access
Deselect functionality can be ignored for device-trees with
"i2c-mux-idle-disconnect" entries if no platform_data is available.
By enabling the deselect functionality outside the platform_data
block the logic works as it did in previous kernels.
Fixes: 7fcac98071 ("i2c: i2c-mux-pca954x: convert to use an explicit i2c mux core")
Cc: <stable@vger.kernel.org> # v4.7+
Signed-off-by: Alex Hemme <ahemme@cisco.com>
Signed-off-by: Ziyang Wu <ziywu@cisco.com>
[touched up a few minor issues /peda]
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes marked for stable:
- Fix system reset interrupt winkle wakeups (Nicholas Piggin)
- Fix setting of AIL in hypervisor mode (Benjamin Herrenschmidt)
Fixes for code merged this cycle:
- Fix exception vector build with 2.23 era binutils (Hugh Dickins)
- Fix missing update of HID register on secondary CPUs (Aneesh Kumar K.V)
Other:
- Fix missing pr_cont()s in show_stack() (Michael Ellerman)
- Fix missing pr_cont()s in print_msr_bits() et. al. (Michael Ellerman)
- Fix missing pr_cont()s in show_regs() (Michael Ellerman)
- Fix missing pr_cont()s in instruction dump (Andrew Donnellan)
- Invalidate ERAT on tlbiel for POWER9 DD1 (Michael Neuling)
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Merge tag 'powerpc-4.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes marked for stable:
- fix system reset interrupt winkle wakeups
- fix setting of AIL in hypervisor mode
Fixes for code merged this cycle:
- fix exception vector build with 2.23 era binutils
- fix missing update of HID register on secondary CPUs
Other:
- fix missing pr_cont()s
- invalidate ERAT on tlbiel for POWER9 DD1"
* tag 'powerpc-4.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix missing update of HID register on secondary CPUs
powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1
powerpc/64: Fix setting of AIL in hypervisor mode
powerpc/oops: Fix missing pr_cont()s in instruction dump
powerpc/oops: Fix missing pr_cont()s in show_regs()
powerpc/oops: Fix missing pr_cont()s in print_msr_bits() et. al.
powerpc/oops: Fix missing pr_cont()s in show_stack()
powerpc: Fix exception vector build with 2.23 era binutils
powerpc/64s: Fix system reset interrupt winkle wakeups
Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- Compiler warning in caam driver that was the last one remaining
- Do not register aes-xts in caam drivers on unsupported platforms
- Regression in algif_hash interface that may lead to an oops"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: algif_hash - Fix NULL hash crash with shash
crypto: caam - fix type mismatch warning
crypto: caam - do not register AES-XTS mode on LP units
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Merge tag 'leds_4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED subsystem update from Jacek Anaszewski:
"I'd like to announce a new co-maintainer - Pavel Machek"
* tag 'leds_4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
MAINTAINERS: Add LED subsystem co-maintainer
Some driver fixes which we pending in my tree:
o return error code fix in edma driver
o Kconfig fix for genric allocator in mmp_tdma
o fix uninitialized value in sun6i
o Runtime pm fixes for cppi
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Merge tag 'dmaengine-fix-4.9-rc6' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Some driver fixes which we pending in my tree:
- return error code fix in edma driver
- Kconfig fix for genric allocator in mmp_tdma
- fix uninitialized value in sun6i
- Runtime pm fixes for cppi"
* tag 'dmaengine-fix-4.9-rc6' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: cppi41: More PM runtime fixes
dmaengine: cpp41: Fix handling of error path
dmaengine: cppi41: Fix unpaired pm runtime when only a USB hub is connected
dmaengine: cppi41: Fix list not empty warning on module removal
dmaengine: sun6i: fix the uninitialized value for v_lli
dmaengine: mmp_tdma: add missing select GENERIC_ALLOCATOR in Kconfig
dmaengine: edma: Fix error return code in edma_alloc_chan_resources()
kvm_arch_set_irq is unused since commit b97e6de9c9. Merge
its functionality with kvm_arch_set_irq_inatomic.
Reported-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
This was reported by syzkaller:
[ INFO: possible recursive locking detected ]
4.9.0-rc4+ #49 Not tainted
---------------------------------------------
kworker/2:1/5658 is trying to acquire lock:
([ 1644.769018] (&work->work)
[< inline >] list_empty include/linux/compiler.h:243
[<ffffffff8128dd60>] flush_work+0x0/0x660 kernel/workqueue.c:1511
but task is already holding lock:
([ 1644.769018] (&work->work)
[<ffffffff812916ab>] process_one_work+0x94b/0x1900 kernel/workqueue.c:2093
stack backtrace:
CPU: 2 PID: 5658 Comm: kworker/2:1 Not tainted 4.9.0-rc4+ #49
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Workqueue: events async_pf_execute
ffff8800676ff630 ffffffff81c2e46b ffffffff8485b930 ffff88006b1fc480
0000000000000000 ffffffff8485b930 ffff8800676ff7e0 ffffffff81339b27
ffff8800676ff7e8 0000000000000046 ffff88006b1fcce8 ffff88006b1fccf0
Call Trace:
...
[<ffffffff8128ddf3>] flush_work+0x93/0x660 kernel/workqueue.c:2846
[<ffffffff812954ea>] __cancel_work_timer+0x17a/0x410 kernel/workqueue.c:2916
[<ffffffff81295797>] cancel_work_sync+0x17/0x20 kernel/workqueue.c:2951
[<ffffffff81073037>] kvm_clear_async_pf_completion_queue+0xd7/0x400 virt/kvm/async_pf.c:126
[< inline >] kvm_free_vcpus arch/x86/kvm/x86.c:7841
[<ffffffff810b728d>] kvm_arch_destroy_vm+0x23d/0x620 arch/x86/kvm/x86.c:7946
[< inline >] kvm_destroy_vm virt/kvm/kvm_main.c:731
[<ffffffff8105914e>] kvm_put_kvm+0x40e/0x790 virt/kvm/kvm_main.c:752
[<ffffffff81072b3d>] async_pf_execute+0x23d/0x4f0 virt/kvm/async_pf.c:111
[<ffffffff8129175c>] process_one_work+0x9fc/0x1900 kernel/workqueue.c:2096
[<ffffffff8129274f>] worker_thread+0xef/0x1480 kernel/workqueue.c:2230
[<ffffffff812a5a94>] kthread+0x244/0x2d0 kernel/kthread.c:209
[<ffffffff831f102a>] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433
The reason is that kvm_put_kvm is causing the destruction of the VM, but
the page fault is still on the ->queue list. The ->queue list is owned
by the VCPU, not by the work items, so we cannot just add list_del to
the work item.
Instead, use work->vcpu to note async page faults that have been resolved
and will be processed through the done list. There is no need to flush
those.
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Userspace can read the exact value of kvmclock by reading the TSC
and fetching the timekeeping parameters out of guest memory. This
however is brittle and not necessary anymore with KVM 4.11. Provide
a mechanism that lets userspace know if the new KVM_GET_CLOCK
semantics are in effect, and---since we are at it---if the clock
is stable across all VCPUs.
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Function user_notifier_unregister should be called only once for each
registered user notifier.
Function kvm_arch_hardware_disable can be executed from an IPI context
which could cause a race condition with a VCPU returning to user mode
and attempting to unregister the notifier.
Signed-off-by: Ignacio Alvarado <ikalvarado@google.com>
Cc: stable@vger.kernel.org
Fixes: 18863bdd60 ("KVM: x86 shared msr infrastructure")
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Going through the first VCPU is wrong if you follow a KVM_SET_CLOCK with
a KVM_GET_CLOCK immediately after, without letting the VCPU run and
call kvm_guest_time_update.
To fix this, compute the kvmclock value ourselves, using the master
clock (tsc, nsec) pair as the base and the host CPU frequency as
the scale.
Reported-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
- Revert a splat on disabling interface which created another problem,
by Sven Eckelmann
- Fix error handling when the primary interface disappears during a
throughput meter test, by Sven Eckelmann
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Merge tag 'batadv-net-for-davem-20161119' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
Here are two batman-adv bugfix patches:
- Revert a splat on disabling interface which created another problem,
by Sven Eckelmann
- Fix error handling when the primary interface disappears during a
throughput meter test, by Sven Eckelmann
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
at91ether_start_xmit() does not check for dma mapping errors.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Revert a recent ACPICA cleanup that attempted to get rid of all
FADT version 2 legacy, but broke ACPI thermal management on at
least one system (Rafael Wysocki).
- Fix cross-compiled builds of ACPI tools that stopped working
after a recent cleanup related to the handling of header files
in ACPICA (Lv Zheng).
- Fix a locking issue in the PCC channel initialization code that
invokes devm_request_irq() under a spinlock (among other things)
and causes lockdep to complain (Hoan Tran).
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Merge tag 'acpi-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"They fix an ACPI thermal management regression introduced by a recent
FADT handling cleanup, an ACPI tools build issue introduced by a
recent ACPICA commit and a PCC mailbox initialization bug causing
lockdep to complain loudly.
Specifics:
- Revert a recent ACPICA cleanup that attempted to get rid of all
FADT version 2 legacy, but broke ACPI thermal management on at
least one system (Rafael Wysocki).
- Fix cross-compiled builds of ACPI tools that stopped working after
a recent cleanup related to the handling of header files in ACPICA
(Lv Zheng).
- Fix a locking issue in the PCC channel initialization code that
invokes devm_request_irq() under a spinlock (among other things)
and causes lockdep to complain (Hoan Tran)"
* tag 'acpi-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
tools/power/acpi: Remove direct kernel source include reference
mailbox: PCC: Fix lockdep warning when request PCC channel
Revert "ACPICA: FADT support cleanup"
Pull kbuild fixes from Michal Marek:
"Here are some regression fixes for kbuild:
- modversion support for exported asm symbols (Nick Piggin). The
affected architectures need separate patches adding
asm-prototypes.h.
- fix rebuilds of lib-ksyms.o (Nick Piggin)
- -fno-PIE builds (Sebastian Siewior and Borislav Petkov). This is
not a kernel regression, but one of the Debian gcc package.
Nevertheless, it's quite annoying, so I think it should go into
mainline and stable now"
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Steal gcc's pie from the very beginning
kbuild: be more careful about matching preprocessed asm ___EXPORT_SYMBOL
x86/kexec: add -fno-PIE
scripts/has-stack-protector: add -fno-PIE
kbuild: add -fno-PIE
kbuild: modversions for EXPORT_SYMBOL() for asm
kbuild: prevent lib-ksyms.o rebuilds
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Merge tag 'nfsd-4.9-2' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfix from Bruce Fields:
"Just one fix for an NFS/RDMA crash"
* tag 'nfsd-4.9-2' of git://linux-nfs.org/~bfields/linux:
sunrpc: svc_age_temp_xprts_now should not call setsockopt non-tcp transports
Add missing NDA_VLAN attribute's size.
Fixes: 1e53d5bb88 ("net: Pass VLAN ID to rtnl_fdb_notify.")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The argument to get_net_ns_by_fd() is a /proc/$PID/ns/net file
descriptor not a pid. Fix the typo.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Rami Rosen <roszenrami@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* limit # of scan results stored in memory - this is a long-standing bug
Jouni and I only noticed while discussing other things in Santa Fe
* revert AP_LINK_PS patch that was causing issues (Felix)
* various A-MSDU/A-MPDU fixes for TXQ code (Felix)
* interoperability workaround for peers with broken VHT capabilities
(Filip Matusiak)
* add bitrate definition for a VHT MCS that's supposed to be invalid
but gets used by some hardware anyway (Thomas Pedersen)
* beacon timer fix in hwsim (Benjamin Beichler)
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Merge tag 'mac80211-for-davem-2016-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
A few more bugfixes:
* limit # of scan results stored in memory - this is a long-standing bug
Jouni and I only noticed while discussing other things in Santa Fe
* revert AP_LINK_PS patch that was causing issues (Felix)
* various A-MSDU/A-MPDU fixes for TXQ code (Felix)
* interoperability workaround for peers with broken VHT capabilities
(Filip Matusiak)
* add bitrate definition for a VHT MCS that's supposed to be invalid
but gets used by some hardware anyway (Thomas Pedersen)
* beacon timer fix in hwsim (Benjamin Beichler)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 2b15af6f95 ("af_unix: use freezable blocking calls in read")
converts schedule_timeout() to its freezable version, it was probably
correct at that time, but later, commit 2b514574f7
("net: af_unix: implement splice for stream af_unix sockets") breaks
the strong requirement for a freezable sleep, according to
commit 0f9548ca10:
We shouldn't try_to_freeze if locks are held. Holding a lock can cause a
deadlock if the lock is later acquired in the suspend or hibernate path
(e.g. by dpm). Holding a lock can also cause a deadlock in the case of
cgroup_freezer if a lock is held inside a frozen cgroup that is later
acquired by a process outside that group.
The pipe_lock is still held at that point.
So use freezable version only for the recvmsg call path, avoid impact for
Android.
Fixes: 2b514574f7 ("net: af_unix: implement splice for stream af_unix sockets")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Colin Cross <ccross@android.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Johan Hovold says:
====================
net: cpsw: fix leaks and probe deferral
This series fixes as number of leaks and issues in the cpsw probe-error
and driver-unbind paths, some which specifically prevented deferred
probing.
v2
- Keep platform device runtime-resumed throughout probe instead of
resuming in the probe error path as suggested by Grygorii (patch
1/7).
- Runtime-resume platform device before registering any children in
order to make sure it is synchronously suspended after deregistering
children in the error path (patch 3/7).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to propagate errors from of_phy_register_fixed_link() which
can fail with -EPROBE_DEFER.
Fixes: 1f71e8c96f ("drivers: net: cpsw: Add support for fixed-link
PHY")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to check for allocation failures before dereferencing a
NULL-pointer during probe.
Fixes: 649a1688c9 ("net: ethernet: ti: cpsw: create common struct to
hold shared driver data")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister the primary device in case the secondary emac
fails to probe.
kernel BUG at /home/johan/work/omicron/src/linux/net/core/dev.c:7743!
...
[<c05b3dec>] (free_netdev) from [<c04fe6c0>] (cpsw_probe+0x9cc/0xe50)
[<c04fe6c0>] (cpsw_probe) from [<c047b28c>] (platform_drv_probe+0x5c/0xc0)
Fixes: d9ba8f9e62 ("driver: net: ethernet: cpsw: dual emac interface
implementation")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to drop references taken and deregister devices registered
during probe on probe errors (including deferred probe) and driver
unbind.
Specifically, PHY of-node references were never released and fixed-link
PHY devices were never deregistered.
Fixes: 9e42f71526 ("drivers: net: cpsw: add phy-handle parsing")
Fixes: 1f71e8c96f ("drivers: net: cpsw: Add support for fixed-link
PHY")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to deregister all child devices also on probe errors to avoid
leaks and to fix probe deferral:
cpsw 4a100000.ethernet: omap_device: omap_device_enable() called from invalid state 1
cpsw 4a100000.ethernet: use pm_runtime_put_sync_suspend() in driver?
cpsw: probe of 4a100000.ethernet failed with error -22
Add generic helper to undo the effects of cpsw_probe_dt(), which will
also be used in a follow-on patch to fix further leaks that have been
introduced more recently.
Note that the platform device is now runtime-resumed before registering
any child devices in order to make sure that it is synchronously
suspended after having deregistered the children in the error path.
Fixes: 1fb19aa730 ("net: cpsw: Add parent<->child relation support
between cpsw and mdio")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to drop the reference taken by of_find_device_by_node() when
looking up an mdio device from a phy_id property during probe.
Fixes: 549985ee9c ("cpsw: simplify the setup of the register
pointers")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to keep the platform device runtime-resumed throughout probe
to avoid accessing the CPSW registers in the error path (e.g. for
deferred probe) with clocks disabled:
Unhandled fault: external abort on non-linefetch (0x1008) at 0xd0872d08
...
[<c04fabcc>] (cpsw_ale_control_set) from [<c04fb8b4>] (cpsw_ale_destroy+0x2c/0x44)
[<c04fb8b4>] (cpsw_ale_destroy) from [<c04fea58>] (cpsw_probe+0xbd0/0x10c4)
[<c04fea58>] (cpsw_probe) from [<c047b2a0>] (platform_drv_probe+0x5c/0xc0)
Fixes: df828598a7 ("netdev: driver: ethernet: Add TI CPSW driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sky2 frequently crashes during machine shutdown with:
sky2_get_stats+0x60/0x3d8 [sky2]
dev_get_stats+0x68/0xd8
rtnl_fill_stats+0x54/0x140
rtnl_fill_ifinfo+0x46c/0xc68
rtmsg_ifinfo_build_skb+0x7c/0xf0
rtmsg_ifinfo.part.22+0x3c/0x70
rtmsg_ifinfo+0x50/0x5c
netdev_state_change+0x4c/0x58
linkwatch_do_dev+0x50/0x88
__linkwatch_run_queue+0x104/0x1a4
linkwatch_event+0x30/0x3c
process_one_work+0x140/0x3e0
worker_thread+0x60/0x44c
kthread+0xdc/0xf0
ret_from_fork+0x10/0x50
This is caused by the sky2 being called after it has been shutdown.
A previous thread about this can be found here:
https://lkml.org/lkml/2016/4/12/410
An alternative fix is to assure that IFF_UP gets cleared by
calling dev_close() during shutdown. This is similar to what the
bnx2/tg3/xgene and maybe others are doing to assure that the driver
isn't being called following _shutdown().
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Three trivial fixes: a regression fix for ASRock mobo, a
use-after-free fix at hot-unplug of USB-audio, and a quirk for new
Thinkpad models.
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Merge tag 'sound-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Three trivial fixes:
A regression fix for ASRock mobo, a use-after-free fix at hot-unplug
of USB-audio, and a quirk for new Thinkpad models"
* tag 'sound-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Fix use-after-free of usb_device at disconnect
ALSA: hda - Fix mic regression by ASRock mobo fixup
ALSA: hda - add a new condition to check if it is thinkpad
- Finally, after being puzzled by a bunch of recurrent UML
build failures on randconfigs from the build robot, Keno
Fischer nailed it: GPIO_DEVRES is optional and depends on
HAS_IOMEM even though many users just unconditionally rely
on it to be available. And it *should* be available:
garbage collection is nice for this and it *certainly* has
nothing to do with having IOMEM. So we got rid of it, and
now the UML builds should JustWork(TM).
- Do not call .get_direction() on sleeping GPIO chips on the
fastpath when locking GPIOs for interrupts: it is done
from atomic context, no way.
- Some driver fixes.
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Merge tag 'gpio-v4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"These are hopefully the last GPIO fixes for v4.9. The most important
is that it fixes the UML randconfig builds that have been nagging me
for some time and me being confused about where the problem was really
sitting, now this fix give this nice feeling that everything is solid
and builds fine.
Summary:
- Finally, after being puzzled by a bunch of recurrent UML build
failures on randconfigs from the build robot, Keno Fischer nailed
it: GPIO_DEVRES is optional and depends on HAS_IOMEM even though
many users just unconditionally rely on it to be available. And it
*should* be available: garbage collection is nice for this and it
*certainly* has nothing to do with having IOMEM. So we got rid of
it, and now the UML builds should JustWork(TM).
- Do not call .get_direction() on sleeping GPIO chips on the fastpath
when locking GPIOs for interrupts: it is done from atomic context,
no way.
- Some driver fixes"
* tag 'gpio-v4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Remove GPIO_DEVRES option
gpio: tc3589x: fix up .get_direction()
gpio: do not double-check direction on sleeping chips
gpio: pca953x: Move memcpy into mutex lock for set multiple
gpio: pca953x: Fix corruption of other gpios in set_multiple.
