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commit f57915cfa5b2b14c1cffa2e83c034f55e3f0e70d upstream.
This patch adds a max_send_sge=2 minimum in isert_conn_setup_qp()
to ensure outgoing control PDU responses with tx_desc->num_sge=2
are able to function correctly.
This addresses a bug with RDMA hardware using dev_attr.max_sge=3,
that in the original code with the ConnectX-2 work-around would
result in isert_conn->max_sge=1 being negotiated.
Originally reported by Chris with ocrdma driver.
Reported-by: Chris Moore <Chris.Moore@emulex.com>
Tested-by: Chris Moore <Chris.Moore@emulex.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b1a5ad006b34ded9dc7ec64988deba1b3ecad367 upstream.
isert has an issue of trying to create a CQ with more CQEs than are
supported by the hardware, that currently results in failures during
isert_device creation during first session login.
This is the isert version of the patch that Minh Tran submitted for
iser, and is simple a workaround required to function with existing
ocrdma hardware.
Signed-off-by: Chris Moore <chris.moore@emulex.com>
Reviewied-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6bab4a8a1888729f17f4923cc5867e4674f66333 upstream.
The interrupts were activated and the handler registered before the clockevent
was registered in the probe function.
The interrupt handler, however, was making the assumption that the clockevent
device was registered.
That could cause a null pointer dereference if the timer interrupt was firing
during this narrow window.
Fix that by moving the clockevent registration before the interrupt is enabled.
Reported-by: Roman Byshko <rbyshko@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f144d1496b47e7450f41b767d0d91c724c2198bc upstream.
This can be set by quirks/drivers to be used by the architecture code
that assigns the MSI addresses.
We additionally add verification in the core MSI code that the values
assigned by the architecture do satisfy the limitation in order to fail
gracefully if they don't (ie. the arch hasn't been updated to deal with
that quirk yet).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7fc986d8a9727e5d40da3c2c1c343da6142e82a9 upstream.
Aaron reported that a 32-bit x86 kernel with Physical Address Extension
(PAE) support complains about bridge prefetchable memory windows above 4GB:
pci_bus 0000:00: root bus resource [mem 0x380000000000-0x383fffffffff]
...
pci 0000:03:00.0: reg 0x10: [mem 0x383fffc00000-0x383fffdfffff 64bit pref]
pci 0000:03:00.0: reg 0x20: [mem 0x383fffe04000-0x383fffe07fff 64bit pref]
pci 0000:03:00.1: reg 0x10: [mem 0x383fffa00000-0x383fffbfffff 64bit pref]
pci 0000:03:00.1: reg 0x20: [mem 0x383fffe00000-0x383fffe03fff 64bit pref]
pci 0000:00:02.2: PCI bridge to [bus 03-04]
pci 0000:00:02.2: bridge window [io 0x1000-0x1fff]
pci 0000:00:02.2: bridge window [mem 0x91900000-0x91cfffff]
pci 0000:00:02.2: can't handle 64-bit address space for bridge
In this kernel, unsigned long is 32 bits and dma_addr_t is 64 bits.
Previously we used "unsigned long" to hold the bridge window address. But
this is a bus address, so we should use dma_addr_t instead.
Use dma_addr_t to hold the bridge window base and limit.
The question of whether the CPU can actually *address* the window is
separate and depends on what the physical address space of the CPU is and
whether the host bridge does any address translation.
[bhelgaas: fix "shift count > width of type", changelog, stable tag]
Fixes: d56dbf5bab8c ("PCI: Allocate 64-bit BARs above 4G when possible")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=88131
Reported-by: Aaron Ma <mapengyu@gmail.com>
Tested-by: Aaron Ma <mapengyu@gmail.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit a5f6fc28d6e6cc379c6839f21820e62262419584 ]
pptp_getname() only partially initializes the stack variable sa,
particularly only fills the pptp part of the sa_addr union. The code
thereby discloses 16 bytes of kernel stack memory via getsockname().
Fix this by memset(0)'ing the union before.
Cc: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit b8e4500f42fe4464a33a887579147050bed8fcef ]
Since commit 6fde8f037e60 ("bonding: fix locking in
bond_loadbalance_arp_mon()") we can have a stale bond carrier state and
stale curr_active_slave when using arp monitoring in loadbalance modes. The
reason is that in bond_loadbalance_arp_mon() we can't have
do_failover == true but slave_state_changed == false, whenever do_failover
is true then slave_state_changed is also true. Then the following piece
from bond_loadbalance_arp_mon():
if (slave_state_changed) {
bond_slave_state_change(bond);
if (BOND_MODE(bond) == BOND_MODE_XOR)
bond_update_slave_arr(bond, NULL);
} else if (do_failover) {
block_netpoll_tx();
bond_select_active_slave(bond);
unblock_netpoll_tx();
}
will execute only the first branch, always and regardless of do_failover.
Since these two events aren't related in such way, we need to decouple and
consider them separately.
For example this issue could lead to the following result:
Bonding Mode: load balancing (round-robin)
*MII Status: down*
MII Polling Interval (ms): 0
Up Delay (ms): 0
Down Delay (ms): 0
ARP Polling Interval (ms): 100
ARP IP target/s (n.n.n.n form): 192.168.9.2
Slave Interface: ens12
*MII Status: up*
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 00:0f:53:01:42:2c
Slave queue ID: 0
Slave Interface: eth1
*MII Status: up*
Speed: Unknown
Duplex: Unknown
Link Failure Count: 70
Permanent HW addr: 52:54:00:2f:0f:8e
Slave queue ID: 0
Since some interfaces are up, then the status of the bond should also be
up, but it will never change unless something invokes bond_set_carrier()
(i.e. enslave, bond_select_active_slave etc). Now, if I force the
calling of bond_select_active_slave via for example changing
primary_reselect (it can change in any mode), then the MII status goes to
"up" because it calls bond_select_active_slave() which should've been done
from bond_loadbalance_arp_mon() itself.
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Ding Tianhong <dingtianhong@huawei.com>
Fixes: 6fde8f037e60 ("bonding: fix locking in bond_loadbalance_arp_mon()")
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit bb2bdeb83fb125c95e47fc7eca2a3e8f868e2a74 ]
Added the USB VID/PID for the HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e)
Signed-off-by: Martin Hauke <mardnh@gmx.de>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 8c2dd54485ccee7fc4086611e188478584758c8d ]
In case of any failure ieee802154fake_probe() just calls unregister_netdev().
But it does not look safe to unregister netdevice before it was registered.
The patch implements straightforward resource deallocation in case of
failure in ieee802154fake_probe().
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes commit 2f06fa04cf35da5c24481da3ac84a2900d0b99c3 which was an
incorrect backported version of commit
d6b41cb06044a7d895db82bdd54f6e4219970510 upstream.
If val_count is zero we return -EINVAL with map->lock_arg locked, which
will deadlock the kernel next time we try to acquire this lock.
This was introduced by f5942dd ("regmap: fix possible ZERO_SIZE_PTR pointer
dereferencing error.") which improperly back-ported d6b41cb0.
This issue was found during review of Ubuntu Trusty 3.13.0-40.68 kernel to
prepare Ksplice rebootless updates.
Fixes: f5942dd ("regmap: fix possible ZERO_SIZE_PTR pointer dereferencing error.")
Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9180ac50716a097a407c6d7e7e4589754a922260 upstream.
The LTR is the handshake between the device and the root
complex about the latency allowed when the bus exits power
save. This configuration was missing and this led to high
latency in the link power up. The end user could experience
high latency in the network because of this.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a666b6ffbc9b6705a3ced704f52c3fe9ea8bf959 upstream.
Without this patch, dell-wmi is trying to access elements of dynamically
allocated array without checking the array size. This can lead to memory
corruption or a kernel panic. This patch adds the missing checks for
array size.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8b0f93d9490653a7b9fc91f3570089132faed1c0 upstream.
During create-ah from userspace, uverbs is sending garbage data in
attr.dmac and attr.vlan_id. This patch sets attr.dmac and
attr.vlan_id to zero.
Fixes: dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures")
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f2e323ec96077642d397bb1c355def536d489d16 upstream.
We need to add a limit check here so we don't overflow the buffer.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 45eaf45dfa4850df16bc2e8e7903d89021137f40 upstream.
md_check_recovery will skip any recovery and also clear
MD_RECOVERY_NEEDED if MD_RECOVERY_FROZEN is set.
So when we clear _FROZEN, we must set _NEEDED and ensure that
md_check_recovery gets run.
Otherwise we could miss out on something that is needed.
In particular, this can make it impossible to remove a
failed device from an array is the 'recovery-needed' processing
didn't happen.
Suitable for stable kernels since 3.13.
Reported-and-tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Fixes: 30b8feb730f9b9b3c5de02580897da03f59b6b16
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 21e863b233553998737e1b506c823a00bf012e00 upstream.
Memory allocated for 'name' was leaking if required binding properties
were not present.
The memory for 'name' was allocated early at probe with kasprintf(). It
was freed in error paths executed before and after parsing DTS but not
in that error path.
Fix the error path for parsing device tree properties.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: faffd234cf85 ("bq2415x_charger: Add DT support")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0eaf437aa14949d2230aeab7364f4ab47901304a upstream.
The power_supply_get_by_phandle() on error returns ENODEV or NULL.
The driver later expects obtained pointer to power supply to be
valid or NULL. If it is not NULL then it dereferences it in
bq2415x_notifier_call() which would lead to dereferencing ENODEV-value
pointer.
Properly handle the power_supply_get_by_phandle() error case by
replacing error value with NULL. This indicates that usb charger
detection won't be used.
Fix also memory leak of 'name' if power_supply_get_by_phandle() fails
with NULL and probe should defer.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: faffd234cf85 ("bq2415x_charger: Add DT support")
[small fix regarding the missing ti,usb-charger-detection info message]
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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unbind
commit cdaf3e15385d3232b52287e50692506f8fd01a09 upstream.
The charger manager obtained in probe references to power supplies for
all chargers with power_supply_get_by_name() for later usage. However
if such charger driver was removed then this reference would point to
old power supply (from driver which was removed).
This lead to accessing invalid memory which could be observed with:
$ echo "max77693-charger" > /sys/bus/platform/drivers/max77693-charger/unbind
$ grep . /sys/devices/virtual/power_supply/battery/charger.0/*
$ grep . /sys/devices/virtual/power_supply/battery/*
[ 15.339817] Unable to handle kernel paging request at virtual address 0001c12c
[ 15.346187] pgd = edd08000
[ 15.348814] [0001c12c] *pgd=6dce2831, *pte=00000000, *ppte=00000000
[ 15.355075] Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM
[ 15.360967] Modules linked in:
[ 15.364010] CPU: 2 PID: 1388 Comm: grep Not tainted 3.17.0-next-20141007-00027-ga95e761db1b0 #245
[ 15.372859] task: ee03ad00 ti: edcf6000 task.ti: edcf6000
[ 15.378241] PC is at 0x1c12c
[ 15.381113] LR is at is_ext_pwr_online+0x30/0x6c
[ 15.385706] pc : [<0001c12c>] lr : [<c0339fc4>] psr: a0000013
[ 15.385706] sp : edcf7e88 ip : 00000000 fp : 00000000
[ 15.397161] r10: eeb02c08 r9 : c04b1f84 r8 : eeb02c00
[ 15.402369] r7 : edc69a10 r6 : eea6ac10 r5 : eea6ac10 r4 : 00000004
[ 15.408878] r3 : 0001c12c r2 : edcf7e8c r1 : 00000004 r0 : ee914418
[ 15.415390] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 15.422506] Control: 10c5387d Table: 6dd0804a DAC: 00000015
[ 15.428236] Process grep (pid: 1388, stack limit = 0xedcf6240)
[ 15.434050] Stack: (0xedcf7e88 to 0xedcf8000)
[ 15.438395] 7e80: ee03ad00 00000000 edcf7f80 eea6aca8 edcf7ec4 c033b7b0
[ 15.446554] 7ea0: 00000001 ee1cc3f0 00000004 c06e1e44 eebdc000 c06e1e44 eeb02c00 c0337144
[ 15.454713] 7ec0: ee2dac68 c005cffc ee1cc3c0 c06e1e44 00000fff 00001000 eebdc000 c0278ca8
[ 15.462872] 7ee0: c0278c8c ee1cc3c0 eeb7ce00 c014422c edcf7f20 00008000 ee1cc3c0 ee9a48c0
[ 15.471030] 7f00: 00000001 00000001 edcf7f80 c0142d94 c0142d70 c01060f4 00021000 ee1cc3f0
[ 15.479190] 7f20: 00000000 00000000 c06a2150 eebdc000 2e7ec000 ee9a48c0 00008000 00021000
[ 15.487349] 7f40: edcf7f80 00008000 edcf6000 00021000 00021000 c00e39a4 00000000 ee9a48c0
[ 15.495508] 7f60: 00004000 00000000 00000000 ee9a48c0 ee9a48c0 00008000 00021000 c00e3aa0
[ 15.503668] 7f80: 00000000 00000000 0001f2e0 0001f2e0 00021000 00001000 00000003 c000f364
[ 15.511826] 7fa0: 00000000 c000f1a0 0001f2e0 00021000 00000003 00021000 00008000 00000000
[ 15.519986] 7fc0: 0001f2e0 00021000 00001000 00000003 00000001 000205e8 00000000 00021000
[ 15.528145] 7fe0: 00008000 bebbe910 0000a7ad b6edc49c 60000010 00000003 aaaaaaaa aaaaaaaa
[ 15.536320] [<c0339fc4>] (is_ext_pwr_online) from [<c033b7b0>] (charger_get_property+0x170/0x314)
[ 15.545164] [<c033b7b0>] (charger_get_property) from [<c0337144>] (power_supply_show_property+0x48/0x20c)
[ 15.554719] [<c0337144>] (power_supply_show_property) from [<c0278ca8>] (dev_attr_show+0x1c/0x48)
[ 15.563577] [<c0278ca8>] (dev_attr_show) from [<c014422c>] (sysfs_kf_seq_show+0x84/0x104)
[ 15.571725] [<c014422c>] (sysfs_kf_seq_show) from [<c0142d94>] (kernfs_seq_show+0x24/0x28)
[ 15.579973] [<c0142d94>] (kernfs_seq_show) from [<c01060f4>] (seq_read+0x1b0/0x484)
[ 15.587614] [<c01060f4>] (seq_read) from [<c00e39a4>] (vfs_read+0x88/0x144)
[ 15.594552] [<c00e39a4>] (vfs_read) from [<c00e3aa0>] (SyS_read+0x40/0x8c)
[ 15.601417] [<c00e3aa0>] (SyS_read) from [<c000f1a0>] (ret_fast_syscall+0x0/0x48)
[ 15.608877] Code: bad PC value
[ 15.611991] ---[ end trace a88fcc95208db283 ]---
The charger-manager should get reference to charger power supply on
each use of get_property callback.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 3bb3dbbd56ea ("power_supply: Add initial Charger-Manager driver")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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gauge unbind
commit bdbe81445407644492b9ac69a24d35e3202d773b upstream.
The charger manager obtained reference to fuel gauge power supply in probe
with power_supply_get_by_name() for later usage. However if fuel gauge
driver was removed and re-added then this reference would point to old
power supply (from driver which was removed).
This lead to accessing old (and probably invalid) memory which could be
observed with:
$ echo "12-0036" > /sys/bus/i2c/drivers/max17042/unbind
$ echo "12-0036" > /sys/bus/i2c/drivers/max17042/bind
$ cat /sys/devices/virtual/power_supply/battery/capacity
[ 240.480084] INFO: task cat:1393 blocked for more than 120 seconds.
[ 240.484799] Not tainted 3.17.0-next-20141007-00028-ge60b6dd79570 #203
[ 240.491782] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.499589] cat D c0469530 0 1393 1 0x00000000
[ 240.505947] [<c0469530>] (__schedule) from [<c0469d3c>] (schedule_preempt_disabled+0x14/0x20)
[ 240.514449] [<c0469d3c>] (schedule_preempt_disabled) from [<c046af08>] (mutex_lock_nested+0x1bc/0x458)
[ 240.523736] [<c046af08>] (mutex_lock_nested) from [<c0287a98>] (regmap_read+0x30/0x60)
[ 240.531647] [<c0287a98>] (regmap_read) from [<c032238c>] (max17042_get_property+0x2e8/0x350)
[ 240.540055] [<c032238c>] (max17042_get_property) from [<c03247d8>] (charger_get_property+0x264/0x348)
[ 240.549252] [<c03247d8>] (charger_get_property) from [<c0320764>] (power_supply_show_property+0x48/0x1e0)
[ 240.558808] [<c0320764>] (power_supply_show_property) from [<c027308c>] (dev_attr_show+0x1c/0x48)
[ 240.567664] [<c027308c>] (dev_attr_show) from [<c0141fb0>] (sysfs_kf_seq_show+0x84/0x104)
[ 240.575814] [<c0141fb0>] (sysfs_kf_seq_show) from [<c0140b18>] (kernfs_seq_show+0x24/0x28)
[ 240.584061] [<c0140b18>] (kernfs_seq_show) from [<c0104574>] (seq_read+0x1b0/0x484)
[ 240.591702] [<c0104574>] (seq_read) from [<c00e1e24>] (vfs_read+0x88/0x144)
[ 240.598640] [<c00e1e24>] (vfs_read) from [<c00e1f20>] (SyS_read+0x40/0x8c)
[ 240.605507] [<c00e1f20>] (SyS_read) from [<c000e760>] (ret_fast_syscall+0x0/0x48)
[ 240.612952] 4 locks held by cat/1393:
[ 240.616589] #0: (&p->lock){+.+.+.}, at: [<c01043f4>] seq_read+0x30/0x484
[ 240.623414] #1: (&of->mutex){+.+.+.}, at: [<c01417dc>] kernfs_seq_start+0x1c/0x8c
[ 240.631086] #2: (s_active#31){++++.+}, at: [<c01417e4>] kernfs_seq_start+0x24/0x8c
[ 240.638777] #3: (&map->mutex){+.+...}, at: [<c0287a98>] regmap_read+0x30/0x60
The charger-manager should get reference to fuel gauge power supply on
each use of get_property callback. The thermal zone 'tzd' field of
power supply should not be used because of the same reason.
Additionally this change solves also the issue with nested
thermal_zone_get_temp() calls and related false lockdep positive for
deadlock for thermal zone's mutex [1]. When fuel gauge is used as source of
temperature then the charger manager forwards its get_temp calls to fuel
gauge thermal zone. So actually different mutexes are used (one for
charger manager thermal zone and second for fuel gauge thermal zone) but
for lockdep this is one class of mutex.
The recursion is removed by retrieving temperature through power
supply's get_property().
In case external thermal zone is used ('cm-thermal-zone' property is
present in DTS) the recursion does not exist. Charger manager simply
exports POWER_SUPPLY_PROP_TEMP_AMBIENT property (instead of
POWER_SUPPLY_PROP_TEMP) thus no thermal zone is created for this power
supply.
[1] https://lkml.org/lkml/2014/10/6/309
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 3bb3dbbd56ea ("power_supply: Add initial Charger-Manager driver")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a7ef82aee91f26da79b981b9f5bca43b8817d3e4 upstream.
Sometimes on Dell Latitude laptops psmouse/alps driver receive invalid ALPS
protocol V3 packets with bit7 set in last byte. More often it can be
reproduced on Dell Latitude E6440 or E7440 with closed lid and pushing
cover above touchpad.
If bit7 in last packet byte is set then it is not valid ALPS packet. I was
told that ALPS devices never send these packets. It is not know yet who
send those packets, it could be Dell EC, bug in BIOS and also bug in
touchpad firmware...
With this patch alps driver does not process those invalid packets, but
instead of reporting PSMOUSE_BAD_DATA, getting into out of sync state,
getting back in sync with the next byte and spam dmesg we return
PSMOUSE_FULL_PACKET. If driver is truly out of sync we'll fail the checks
on the next byte and report PSMOUSE_BAD_DATA then.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 9d720b34c0a432639252f63012e18b0507f5b432 upstream.
On some Dell Latitude laptops ALPS device or Dell EC send one invalid byte
in 6 bytes ALPS packet. In this case psmouse driver enter out of sync
state. It looks like that all other bytes in packets are valid and also
device working properly. So there is no need to do full device reset, just
need to wait for byte which match condition for first byte (start of
packet). Because ALPS packets are bigger (6 or 8 bytes) default limit is
small.
This patch increase number of invalid bytes to size of 2 ALPS packets which
psmouse driver can drop before do full reset.
Resetting ALPS devices take some time and when doing reset on some Dell
laptops touchpad, trackstick and also keyboard do not respond. So it is
better to do it only if really necessary.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 4ab8f7f320f91f279c3f06a9795cfea5c972888a upstream.
5th and 6th byte of ALPS trackstick V3 protocol match condition for first
byte of PS/2 3 bytes packet. When driver enters out of sync state and ALPS
trackstick is sending data then driver match 5th, 6th and next 1st bytes as
PS/2.
It basically means if user is using trackstick when driver is in out of
sync state driver will never resync. Processing these bytes as 3 bytes PS/2
data cause total mess (random cursor movements, random clicks) and make
trackstick unusable until psmouse driver decide to do full device reset.
Lot of users reported problems with ALPS devices on Dell Latitude E6440,
E6540 and E7440 laptops. ALPS device or Dell EC for unknown reason send
some invalid ALPS PS/2 bytes which cause driver out of sync. It looks like
that i8042 and psmouse/alps driver always receive group of 6 bytes packets
so there are no missing bytes and no bytes were inserted between valid
ones.
This patch does not fix root of problem with ALPS devices found in Dell
Latitude laptops but it does not allow to process some (invalid)
subsequence of 6 bytes ALPS packets as 3 bytes PS/2 when driver is out of
sync.
So with this patch trackstick input device does not report bogus data when
also driver is out of sync, so trackstick should be usable on those
machines.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit e4742b1e786ca386e88e6cfb2801e14e15e365cd upstream.
The new Lenovo T440s laptop has a different PnP ID "LEN0039", and it
needs the similar min/max quirk to make its clickpad working.
BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=903748
Reported-and-tested-by: Joschi Brauchle <joschibrauchle@gmx.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 40d43c4b4cac4c2647bf07110d7b07d35f399a84 upstream.
The dm-raid superblock (struct dm_raid_superblock) is padded to 512
bytes and that size is being used to read it in from the metadata
device into one preallocated page.
Reading or writing this on a 512-byte sector device works fine but on
a 4096-byte sector device this fails.
Set the dm-raid superblock's size to the logical block size of the
metadata device, because IO at that size is guaranteed too work. Also
add a size check to avoid silent partial metadata loss in case the
superblock should ever grow past the logical block size or PAGE_SIZE.
[includes pointer math fix from Dan Carpenter]
Reported-by: "Liuhua Wang" <lwang@suse.com>
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 9b460d3699324d570a4d4161c3741431887f102f upstream.
The walk code was using a 'ro_spine' to hold it's locked btree nodes.
But this data structure is designed for the rolling lock scheme, and
as such automatically unlocks blocks that are two steps up the call
chain. This is not suitable for the simple recursive walk algorithm,
which retraces its steps.
This code is only used by the persistent array code, which in turn is
only used by dm-cache. In order to trigger it you need to have a
mapping tree that is more than 2 levels deep; which equates to 8-16
million cache blocks. For instance a 4T ssd with a very small block
size of 32k only just triggers this bug.
The fix just places the locked blocks on the stack, and stops using
the ro_spine altogether.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 9d28eb12447ee08bb5d1e8bb3195cf20e1ecd1c0 upstream.
The shrinker uses gfp flags to indicate what kind of operation can the
driver wait for. If __GFP_IO flag is present, the driver can wait for
block I/O operations, if __GFP_FS flag is present, the driver can wait on
operations involving the filesystem.
dm-bufio tested for __GFP_IO. However, dm-bufio can run on a loop block
device that makes calls into the filesystem. If __GFP_IO is present and
__GFP_FS isn't, dm-bufio could still block on filesystem operations if it
runs on a loop block device.
The change from __GFP_IO to __GFP_FS supposedly fixes one observed (though
unreproducible) deadlock involving dm-bufio and loop device.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 48379270fe6808cf4612ee094adc8da2b7a83baa upstream.
Setups that use the blk-mq I/O path can lock up if a host with a single
device that has its door locked enters EH. Make sure to only send the
command to re-lock the door to devices that actually were reset and thus
might have lost their state. Otherwise the EH code might be get blocked
on blk_get_request as all requests for non-reset devices might be in use.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Meelis Roos <meelis.roos@ut.ee>
Tested-by: Meelis Roos <meelis.roos@ut.ee>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit aa1cf25887099bba68f1f3879c0d394e08b8779f upstream.
Unlike other SATA R-Car r8a7790 controllers the r8a7790 ES1 SATA R-Car
controller needs to be run with DIPM disabled.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit eaca2d8e75e90a70a63a6695c9f61932609db212 upstream.
Found by the UC-KLEE tool: A user could supply less input to
firewire-cdev ioctls than write- or write/read-type ioctl handlers
expect. The handlers used data from uninitialized kernel stack then.
This could partially leak back to the user if the kernel subsequently
generated fw_cdev_event_'s (to be read from the firewire-cdev fd)
which notably would contain the _u64 closure field which many of the
ioctl argument structures contain.
The fact that the handlers would act on random garbage input is a
lesser issue since all handlers must check their input anyway.
The fix simply always null-initializes the entire ioctl argument buffer
regardless of the actual length of expected user input. That is, a
runtime overhead of memset(..., 40) is added to each firewirew-cdev
ioctl() call. [Comment from Clemens Ladisch: This part of the stack is
most likely to be already in the cache.]
Remarks:
- There was never any leak from kernel stack to the ioctl output
buffer itself. IOW, it was not possible to read kernel stack by a
read-type or write/read-type ioctl alone; the leak could at most
happen in combination with read()ing subsequent event data.
- The actual expected minimum user input of each ioctl from
include/uapi/linux/firewire-cdev.h is, in bytes:
[0x00] = 32, [0x05] = 4, [0x0a] = 16, [0x0f] = 20, [0x14] = 16,
[0x01] = 36, [0x06] = 20, [0x0b] = 4, [0x10] = 20, [0x15] = 20,
[0x02] = 20, [0x07] = 4, [0x0c] = 0, [0x11] = 0, [0x16] = 8,
[0x03] = 4, [0x08] = 24, [0x0d] = 20, [0x12] = 36, [0x17] = 12,
[0x04] = 20, [0x09] = 24, [0x0e] = 4, [0x13] = 40, [0x18] = 4.
Reported-by: David Ramos <daramos@stanford.edu>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|
commit c822ed967cba38505713d59ed40a114386ef6c01 upstream.
Avoids normal IO racing with discard.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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commit f0d7bfb9407fccb6499ec01c33afe43512a439a2 upstream.
Need to unlock the crtc after updating the blanking state.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8efe82ca908400785253c8f0dfcf301e6bd93488 upstream.
The power management code calls into the display code for
certain things. If certain power management sysfs attributes
are called before the driver has finished initializing all of
the hardware we can run into problems with uninitialized
modesetting state. Add a check to make sure modesetting
init has completed to the bandwidth update callbacks to
fix this. Can be triggered by the tlp and laptop start
up scripts depending on the timing.
bugs:
https://bugzilla.kernel.org/show_bug.cgi?id=83611
https://bugs.freedesktop.org/show_bug.cgi?id=85771
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|
commit dc4edad6530a9b7b66c3d905e2bc06021a05dcad upstream.
CE ram size is 32k/0k/0k for GFX/CS0/CS1 with CIK
Ported from amdgpu driver.
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 805dbe17d1c832ad341f14fae8cedf41b67ca6fa upstream.
The driver is not released when ieee80211_register_hw fails in
mac80211_hwsim_create_radio, leading to the access to the unregistered (and
possibly freed) device in platform_driver_unregister:
[ 0.447547] mac80211_hwsim: ieee80211_register_hw failed (-2)
[ 0.448292] ------------[ cut here ]------------
[ 0.448854] WARNING: CPU: 0 PID: 1 at ../include/linux/kref.h:47 kobject_get+0x33/0x50()
[ 0.449839] CPU: 0 PID: 1 Comm: swapper Not tainted 3.17.0-00001-gdd46990-dirty #2
[ 0.450813] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.451512] 00000000 00000000 78025e38 7967c6c6 78025e68 7905e09b 7988b480 00000000
[ 0.452579] 00000001 79887d62 0000002f 79170bb3 79170bb3 78397008 79ac9d74 00000001
[ 0.453614] 78025e78 7905e15d 00000009 00000000 78025e84 79170bb3 78397000 78025e8c
[ 0.454632] Call Trace:
[ 0.454921] [<7967c6c6>] dump_stack+0x16/0x18
[ 0.455453] [<7905e09b>] warn_slowpath_common+0x6b/0x90
[ 0.456067] [<79170bb3>] ? kobject_get+0x33/0x50
[ 0.456612] [<79170bb3>] ? kobject_get+0x33/0x50
[ 0.457155] [<7905e15d>] warn_slowpath_null+0x1d/0x20
[ 0.457748] [<79170bb3>] kobject_get+0x33/0x50
[ 0.458274] [<7925824f>] get_device+0xf/0x20
[ 0.458779] [<7925b5cd>] driver_detach+0x3d/0xa0
[ 0.459331] [<7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.459927] [<7925bf80>] ? class_unregister+0x40/0x80
[ 0.460660] [<7925bad7>] driver_unregister+0x47/0x50
[ 0.461248] [<7925c033>] ? class_destroy+0x13/0x20
[ 0.461824] [<7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.462507] [<79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.463161] [<79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.463758] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.464393] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.465001] [<79071935>] ? parse_args+0x2f5/0x480
[ 0.465569] [<7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.466345] [<79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.466972] [<79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.467546] [<79677b1b>] kernel_init+0xb/0xe0
[ 0.468072] [<79075f42>] ? schedule_tail+0x12/0x40
[ 0.468658] [<79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.469303] [<79677b10>] ? rest_init+0xc0/0xc0
[ 0.469829] ---[ end trace ad8ac403ff8aef5c ]---
[ 0.470509] ------------[ cut here ]------------
[ 0.471047] WARNING: CPU: 0 PID: 1 at ../kernel/locking/lockdep.c:3161 __lock_acquire.isra.22+0x7aa/0xb00()
[ 0.472163] DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS)
[ 0.472774] CPU: 0 PID: 1 Comm: swapper Tainted: G W 3.17.0-00001-gdd46990-dirty #2
[ 0.473815] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.474492] 78025de0 78025de0 78025da0 7967c6c6 78025dd0 7905e09b 79888931 78025dfc
[ 0.475515] 00000001 79888a93 00000c59 7907f33a 7907f33a 78028000 fffe9d09 00000000
[ 0.476519] 78025de8 7905e10e 00000009 78025de0 79888931 78025dfc 78025e24 7907f33a
[ 0.477523] Call Trace:
[ 0.477821] [<7967c6c6>] dump_stack+0x16/0x18
[ 0.478352] [<7905e09b>] warn_slowpath_common+0x6b/0x90
[ 0.478976] [<7907f33a>] ? __lock_acquire.isra.22+0x7aa/0xb00
[ 0.479658] [<7907f33a>] ? __lock_acquire.isra.22+0x7aa/0xb00
[ 0.480417] [<7905e10e>] warn_slowpath_fmt+0x2e/0x30
[ 0.480479] [<7907f33a>] __lock_acquire.isra.22+0x7aa/0xb00
[ 0.480479] [<79078aa5>] ? sched_clock_cpu+0xb5/0xf0
[ 0.480479] [<7907fd06>] lock_acquire+0x56/0x70
[ 0.480479] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<79682d11>] mutex_lock_nested+0x61/0x2a0
[ 0.480479] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<7925b5e8>] driver_detach+0x58/0xa0
[ 0.480479] [<7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.480479] [<7925bf80>] ? class_unregister+0x40/0x80
[ 0.480479] [<7925bad7>] driver_unregister+0x47/0x50
[ 0.480479] [<7925c033>] ? class_destroy+0x13/0x20
[ 0.480479] [<7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.480479] [<79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.480479] [<79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.480479] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.480479] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.480479] [<79071935>] ? parse_args+0x2f5/0x480
[ 0.480479] [<7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.480479] [<79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.480479] [<79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.480479] [<79677b1b>] kernel_init+0xb/0xe0
[ 0.480479] [<79075f42>] ? schedule_tail+0x12/0x40
[ 0.480479] [<79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.480479] [<79677b10>] ? rest_init+0xc0/0xc0
[ 0.480479] ---[ end trace ad8ac403ff8aef5d ]---
[ 0.495478] BUG: unable to handle kernel paging request at 00200200
[ 0.496257] IP: [<79682de5>] mutex_lock_nested+0x135/0x2a0
[ 0.496923] *pde = 00000000
[ 0.497290] Oops: 0002 [#1]
[ 0.497653] CPU: 0 PID: 1 Comm: swapper Tainted: G W 3.17.0-00001-gdd46990-dirty #2
[ 0.498659] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.499321] task: 78028000 ti: 78024000 task.ti: 78024000
[ 0.499955] EIP: 0060:[<79682de5>] EFLAGS: 00010097 CPU: 0
[ 0.500620] EIP is at mutex_lock_nested+0x135/0x2a0
[ 0.501145] EAX: 00200200 EBX: 78397434 ECX: 78397460 EDX: 78025e70
[ 0.501816] ESI: 00000246 EDI: 78028000 EBP: 78025e8c ESP: 78025e54
[ 0.502497] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
[ 0.503076] CR0: 8005003b CR2: 00200200 CR3: 01b9d000 CR4: 00000690
[ 0.503773] Stack:
[ 0.503998] 00000000 00000001 00000000 7925b5e8 78397460 7925b5e8 78397474 78397460
[ 0.504944] 00200200 11111111 78025e70 78397000 79ac9d74 00000001 78025ea0 7925b5e8
[ 0.505451] 79ac9d74 fffffffe 00000001 78025ebc 7925a3ff 7a251398 78025ec8 7925bf80
[ 0.505451] Call Trace:
[ 0.505451] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.505451] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.505451] [<7925b5e8>] driver_detach+0x58/0xa0
[ 0.505451] [<7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.505451] [<7925bf80>] ? class_unregister+0x40/0x80
[ 0.505451] [<7925bad7>] driver_unregister+0x47/0x50
[ 0.505451] [<7925c033>] ? class_destroy+0x13/0x20
[ 0.505451] [<7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.505451] [<79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.505451] [<79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.505451] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.505451] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.505451] [<79071935>] ? parse_args+0x2f5/0x480
[ 0.505451] [<7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.505451] [<79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.505451] [<79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.505451] [<79677b1b>] kernel_init+0xb/0xe0
[ 0.505451] [<79075f42>] ? schedule_tail+0x12/0x40
[ 0.505451] [<79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.505451] [<79677b10>] ? rest_init+0xc0/0xc0
[ 0.505451] Code: 89 d8 e8 cf 9b 9f ff 8b 4f 04 8d 55 e4 89 d8 e8 72 9d 9f ff 8d 43 2c 89 c1 89 45 d8 8b 43 30 8d 55 e4 89 53 30 89 4d e4 89 45 e8 <89> 10 8b 55 dc 8b 45 e0 89 7d ec e8 db af 9f ff eb 11 90 31 c0
[ 0.505451] EIP: [<79682de5>] mutex_lock_nested+0x135/0x2a0 SS:ESP 0068:78025e54
[ 0.505451] CR2: 0000000000200200
[ 0.505451] ---[ end trace ad8ac403ff8aef5e ]---
[ 0.505451] Kernel panic - not syncing: Fatal exception
Fixes: 9ea927748ced ("mac80211_hwsim: Register and bind to driver")
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 3ce9b20f1971690b8b3b620e735ec99431573b39 upstream.
When VLAN is in use in macvtap_put_user, we end up setting
csum_start to the wrong place. The result is that the whoever
ends up doing the checksum setting will corrupt the packet instead
of writing the checksum to the expected location, usually this
means writing the checksum with an offset of -4.
This patch fixes this by adjusting csum_start when VLAN tags are
detected.
Fixes: f09e2249c4f5 ("macvtap: restore vlan header on user read")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
commit 66a7cbc303f4d28f201529b06061944d51ab530c upstream.
Samsung pci-e SSDs on macbooks failed miserably on NCQ commands, so
67809f85d31e ("ahci: disable NCQ on Samsung pci-e SSDs on macbooks")
disabled NCQ on them. It turns out that NCQ is fine as long as MSI is
not used, so let's turn off MSI and leave NCQ on.
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=60731
Tested-by: <dorin@i51.org>
Tested-by: Imre Kaloz <kaloz@openwrt.org>
Fixes: 67809f85d31e ("ahci: disable NCQ on Samsung pci-e SSDs on macbooks")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
commit 690000b930456a98663567d35dd5c54b688d1e3f upstream.
This patch adds the AHCI-mode SATA Device IDs for the Intel Sunrise Point PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a8f9bfdf982e2b1fb9f094e4de9ab08c57f3d2fd upstream.
When VLAN acceleration is in use on the xmit path, we end up
setting csum_start to the wrong place. The result is that the
whoever ends up doing the checksum setting will corrupt the packet
instead of writing the checksum to the expected location, usually
this means writing the checksum with an offset of -4.
This patch fixes this by adjusting csum_start when VLAN acceleration
is detected.
Fixes: 6680ec68eff4 ("tuntap: hardware vlan tx support")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 24c65bc7037e7d0f362c0df70d17dd72ee64b8b9 upstream.
The add_early_randomness() function in drivers/char/hw_random/core.c passes
a 16-byte buffer to pseries_rng_data_read(). Unfortunately, plpar_hcall()
returns four 64-bit values and trashes 16 bytes on the stack.
This bug has been lying around for a long time. It got unveiled by:
commit d3cc7996473a7bdd33256029988ea690754e4e2a
Author: Amit Shah <amit.shah@redhat.com>
Date: Thu Jul 10 15:42:34 2014 +0530
hwrng: fetch randomness only after device init
It may trig a oops while loading or unloading the pseries-rng module for both
PowerVM and PowerKVM guests.
This patch does two things:
- pass an intermediate well sized buffer to plpar_hcall(). This is acceptalbe
since we're not on a hot path.
- move to the new read API so that we know the return buffer size for sure.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 307fd543f3d23f8f56850eca1b27b1be2fe71017 upstream.
Replace equivalent (and partially incorrect) scatter-gather functions
with ones from crypto-API.
The replacement is motivated by page-faults in sg_copy_part triggered
by successive calls to crypto_hash_update. The following fault appears
after calling crypto_ahash_update twice, first with 13 and then
with 285 bytes:
Unable to handle kernel paging request for data at address 0x00000008
Faulting instruction address: 0xf9bf9a8c
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=8 CoreNet Generic
Modules linked in: tcrypt(+) caamhash caam_jr caam tls
CPU: 6 PID: 1497 Comm: cryptomgr_test Not tainted
3.12.19-rt30-QorIQ-SDK-V1.6+g9fda9f2 #75
task: e9308530 ti: e700e000 task.ti: e700e000
NIP: f9bf9a8c LR: f9bfcf28 CTR: c0019ea0
REGS: e700fb80 TRAP: 0300 Not tainted
(3.12.19-rt30-QorIQ-SDK-V1.6+g9fda9f2)
MSR: 00029002 <CE,EE,ME> CR: 44f92024 XER: 20000000
DEAR: 00000008, ESR: 00000000
GPR00: f9bfcf28 e700fc30 e9308530 e70b1e55 00000000 ffffffdd e70b1e54 0bebf888
GPR08: 902c7ef5 c0e771e2 00000002 00000888 c0019ea0 00000000 00000000 c07a4154
GPR16: c08d0000 e91a8f9c 00000001 e98fb400 00000100 e9c83028 e70b1e08 e70b1d48
GPR24: e992ce10 e70b1dc8 f9bfe4f4 e70b1e55 ffffffdd e70b1ce0 00000000 00000000
NIP [f9bf9a8c] sg_copy+0x1c/0x100 [caamhash]
LR [f9bfcf28] ahash_update_no_ctx+0x628/0x660 [caamhash]
Call Trace:
[e700fc30] [f9bf9c50] sg_copy_part+0xe0/0x160 [caamhash] (unreliable)
[e700fc50] [f9bfcf28] ahash_update_no_ctx+0x628/0x660 [caamhash]
[e700fcb0] [f954e19c] crypto_tls_genicv+0x13c/0x300 [tls]
[e700fd10] [f954e65c] crypto_tls_encrypt+0x5c/0x260 [tls]
[e700fd40] [c02250ec] __test_aead.constprop.9+0x2bc/0xb70
[e700fe40] [c02259f0] alg_test_aead+0x50/0xc0
[e700fe60] [c02241e4] alg_test+0x114/0x2e0
[e700fee0] [c022276c] cryptomgr_test+0x4c/0x60
[e700fef0] [c004f658] kthread+0x98/0xa0
[e700ff40] [c000fd04] ret_from_kernel_thread+0x5c/0x64
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 738459e3f88538f2ece263424dafe5d91799e46b upstream.
If dma mapping for dma_addr_out fails, the descriptor memory is freed
but the previous dma mapping for dma_addr_in remains.
This patch resolves the missing dma unmap and groups resource
allocations at function start.
Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit c406515239376fc93a30d5d03192182160cbd3fb upstream.
zram could kunmap_atomic() a NULL pointer in a rare situation: a zram
page becomes a full-zeroed page after a partial write io. The current
code doesn't handle this case and performs kunmap_atomic() on a NULL
pointer, which panics the kernel.
This patch fixes this issue.
Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Weijie Yang <weijie.yang.kh@gmail.com>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 85b0c6e62c48bb9179fd5b3e954f362fb346cbd5 ]
The VD_OP_GET_VTOC operation will succeed only if the vdisk backend has a
VTOC label, otherwise it will fail. In particular, it will return error
48 (ENOTSUP) if the disk has an EFI label. VTOC disk labels are already
handled by directly reading the disk in block/partitions/sun.c (enabled by
CONFIG_SUN_PARTITION which defaults to y on SPARC). Since port->label is
unused in the driver, remove the call and the field.
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit d0aedcd4f14a22e23b313f42b7e6e6ebfc0fbc31 ]
vio_dring_avail() will allow use of every dring entry, but when the last
entry is allocated then dr->prod == dr->cons which is indistinguishable from
the ring empty condition. This causes the next allocation to reuse an entry.
When this happens in sunvdc, the server side vds driver begins nack'ing the
messages and ends up resetting the ldc channel. This problem does not effect
sunvnet since it checks for < 2.
The fix here is to just never allocate the very last dring slot so that full
and empty are not the same condition. The request start path was changed to
check for the ring being full a bit earlier, and to stop the blk_queue if
there is no space left. The blk_queue will be restarted once the ring is
only half full again. The number of ring entries was increased to 512 which
matches the sunvnet and Solaris vdc drivers, and greatly reduces the
frequency of hitting the ring full condition and the associated blk_queue
stop/starting. The checks in sunvent were adjusted to account for
vio_dring_avail() returning 1 less.
Orabug: 19441666
OraBZ: 14983
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 5eed69ffd248c9f68f56c710caf07db134aef28b ]
ldc_map_sg() could fail its check that the number of pages referred to
by the sg scatterlist was <= the number of cookies.
This fixes the issue by doing a similar thing to the xen-blkfront driver,
ensuring that the scatterlist will only ever contain a segment count <=
port->ring_cookies, and each segment will be page aligned, and <= page
size. This ensures that the scatterlist is always mappable.
Orabug: 19347817
OraBZ: 15945
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit de5b73f08468b4fc5e2f6d1505f650262622f78b ]
The LDom diskserver doesn't return reliable geometry data. In addition,
the types for all fields in the vio_disk_geom are u16, which were being
truncated in the cast into the u8's of the Linux struct hd_geometry.
Modify vdc_getgeo() to compute the geometry from the disk's capacity in a
manner consistent with xen-blkfront::blkif_getgeo().
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 9bce21828d54a95143f1b74619705c2dd8e88b92 ]
Interpret the media type from v1.1 protocol to support CDROM/DVD.
For v1.0 protocol, a disk's size continues to be calculated from the
geometry returned by the vdisk server. The geometry returned by the server
can be less than the actual number of sectors available in the backing
image/device due to the rounding in the division used to compute the
geometry in the vdisk server.
In v1.1 protocol a disk's actual size in sectors is returned during the
handshake. Use this size when v1.1 protocol is negotiated. Since this size
will always be larger than the former geometry computed size, disks created
under v1.0 will be forwards compatible to v1.1, but not vice versa.
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit ccf899a27c08038db91765ff12bb0380dcd85887 ]
With commit be9dad1f9f26604fb ("net: phy: suspend phydev when going
to HALTED"), the PHY device will be put in a low-power mode using
BMCR_PDOWN if the the interface is set down. The smsc911x driver does
a software_reset opening the device driver (ndo_open). In such case,
the PHY must be powered-up before access to any register and before
calling the software_reset function. Otherwise, as the PHY is powered
down the software reset fails and the interface can not be enabled
again.
This patch fixes this scenario that is easy to reproduce setting down
the network interface and setting up again.
$ ifconfig eth0 down
$ ifconfig eth0 up
ifconfig: SIOCSIFFLAGS: Input/output error
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 19ca9fc1445b76b60d34148f7ff837b055f5dcf3 ]
Currently, we only match against local port number in order to reuse
socket. But if this new vxlan wants an IPv6 socket and a IPv4 one bound
to that port, vxlan will reuse an IPv4 socket as IPv6 and a panic will
follow. The following steps reproduce it:
# ip link add vxlan6 type vxlan id 42 group 229.10.10.10 \
srcport 5000 6000 dev eth0
# ip link add vxlan7 type vxlan id 43 group ff0e::110 \
srcport 5000 6000 dev eth0
# ip link set vxlan6 up
# ip link set vxlan7 up
<panic>
[ 4.187481] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
...
[ 4.188076] Call Trace:
[ 4.188085] [<ffffffff81667c4a>] ? ipv6_sock_mc_join+0x3a/0x630
[ 4.188098] [<ffffffffa05a6ad6>] vxlan_igmp_join+0x66/0xd0 [vxlan]
[ 4.188113] [<ffffffff810a3430>] process_one_work+0x220/0x710
[ 4.188125] [<ffffffff810a33c4>] ? process_one_work+0x1b4/0x710
[ 4.188138] [<ffffffff810a3a3b>] worker_thread+0x11b/0x3a0
[ 4.188149] [<ffffffff810a3920>] ? process_one_work+0x710/0x710
So address family must also match in order to reuse a socket.
Reported-by: Jean-Tsung Hsiao <jhsiao@redhat.com>
Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 2b52d6c6beda6308ba95024a1eba1dfc9515ba32 which was
commit 3d0ad09412ffe00c9afa201d01effdb6023d09b4 upstream.
Ben writes:
Please drop this patch for 3.14 and 3.17. It causes problems
for migration of VMs and we're probably going to revert part of
this. The following patch ("drivers/net, ipv6: Select IPv6
fragment idents for virtio UFO packets") might no longer apply,
in which case you can drop that as well until we have this
sorted out upstream.
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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