This is a set of ten fixes: 8 for UFS including four static checker warnings,
a potential null deref in the voltage regulator code, a race on module unload,
a ref counting fix on the well known LUNs which made it impossible to remove
the ufs module and fix to correct the information in pwr_info. In addition to
UFS, there's a blacklist for the Intel Multi-Flex array which chokes on report
supported operation codes and a fix to an oops in bnx2fc caused by shared
skbs.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of ten fixes: 8 for UFS including four static checker
warnings, a potential null deref in the voltage regulator code, a race
on module unload, a ref counting fix on the well known LUNs which made
it impossible to remove the ufs module and fix to correct the
information in pwr_info.
In addition to UFS, there's a blacklist for the Intel Multi-Flex array
which chokes on report supported operation codes and a fix to an oops
in bnx2fc caused by shared skbs"
[ For us non-SCSI people: "UFS" here is "Universal Flash Storage" not
the filesystem. - Linus ]
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
ufs: fix NULL dereference when no regulators are defined
ufs: ensure clk gating work is finished before module unloading
scsi: ufs: fix static checker warning in ufshcd_parse_clock_info
scsi: ufs: fix static checker warning in __ufshcd_setup_clocks
scsi: ufs: fix static checker warning in ufshcd_populate_vreg
scsi: ufs: fix static checker errors in ufshcd_system_suspend
ufs: fix power info after link start-up
ufs: fix reference counting of W-LUs
scsi: add Intel Multi-Flex to scsi scan blacklist
bnx2fc: do not add shared skbs to the fcoe_rx_list
Here are some Staging and IIO driver fixes for 3.18-rc7 that resolve a
number of reported issues, and a new device id for a staging wireless
driver.
All of these have been in linux-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver fixes from Greg KH:
"Here are some staging and IIO driver fixes for 3.18-rc7 that resolve a
number of reported issues, and a new device id for a staging wireless
driver.
All of these have been in linux-next"
* tag 'staging-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: r8188eu: Add new device ID for DLink GO-USB-N150
staging: r8188eu: Fix scheduling while atomic error introduced in commit fadbe0cd
iio: accel: bmc150: set low default thresholds
iio: accel: bmc150: Fix iio_event_spec direction
iio: accel: bmc150: Send x, y and z motion separately
iio: accel: bmc150: Error handling when mode set fails
iio: gyro: bmg160: Fix iio_event_spec direction
iio: gyro: bmg160: Send x, y and z motion separately
iio: gyro: bmg160: Don't let interrupt mode to be open drain
iio: gyro: bmg160: Error handling when mode set fails
iio: adc: men_z188_adc: Add terminating entry for men_z188_ids
iio: accel: kxcjk-1013: Fix kxcjk10013_set_range
iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask
Here is a single revert for the of-serial driver that resolves a
reported issue.
This revert has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fix from Greg KH:
"Here is a single revert for the of-serial driver that resolves a
reported issue.
This revert has been in linux-next for a while"
* tag 'tty-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "serial: of-serial: add PM suspend/resume support"
Here are some USB driver fixes and new device ids for 3.18-rc7.
Full details are in the shortlog, and all of these have been in the
linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB driver fixes and new device ids for 3.18-rc7.
Full details are in the shortlog, and all of these have been in the
linux-next tree for a while"
* tag 'usb-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000
usb: xhci: rework root port wake bits if controller isn't allowed to wakeup
USB: xhci: Reset a halted endpoint immediately when we encounter a stall.
Revert "xhci: clear root port wake on bits if controller isn't wake-up capable"
USB: xhci: don't start a halted endpoint before its new dequeue is set
USB: uas: Add no-uas quirk for Hitachi usb-3 enclosures 4971:1012
USB: ssu100: fix overrun-error reporting
USB: keyspan: fix overrun-error reporting
USB: keyspan: fix tty line-status reporting
usb: serial: ftdi_sio: add PIDs for Matrix Orbital products
usb: dwc3: ep0: fix for dead code
USB: serial: cp210x: add IDs for CEL MeshConnect USB Stick
Pull thermal fixes from Eduardo Valentin:
"In this -rc still very minor changes:
- Lee Jones fixes compilation warning in sti thermal driver
- Marjus Elfring removes unnecessary checks in exynos thermal driver
(as per coccinelle)
- Now we always update cpufreq policies, and thus get (hopefully)
always in sync with cpufreq, thanks to Yadwinder"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: Exynos: Deletion of unnecessary checks before two function calls
thermal: sti: Ignore suspend/resume functions when !PM_SLEEP
thermal: cpu_cooling: Update always cpufreq policy with thermal constraints
No excitement, here are only minor fixes: an endian fix for the
new DSD format we added in 3.18, a fix for HP mute LED, and a
fix for Native Instrument quirk.
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Merge tag 'sound-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"No excitement, here are only minor fixes: an endian fix for the new
DSD format we added in 3.18, a fix for HP mute LED, and a fix for
Native Instrument quirk"
* tag 'sound-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: pcm: Add big-endian DSD sample formats and fix XMOS DSD sample format
ALSA: hda - One more HP machine needs to change mute led quirk
ALSA: usb-audio: Use snd_usb_ctl_msg() for Native Instruments quirk
Just four simple fixes this week:
- one missing of_node_put() on armv7 based mvebu
- forcing the USB host into the right mode on Chromebook (exynos5-snow)
- enabling two important drivers for exynos_defconfig
- fixing a noncritical bug for tegra that would cause a
regression with common code patches queued for 3.19
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Merge tag 'armsoc-for-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Not much interesting going on fixes-wise for us this week, as it
should be for an -rc7. I'm not expecting Olof to work much over
Thanksgiving weekend, so I decided to take over again and push these
out to you.
Just four simple fixes this week:
- one missing of_node_put() on armv7 based mvebu
- forcing the USB host into the right mode on Chromebook
(exynos5-snow)
- enabling two important drivers for exynos_defconfig
- fixing a noncritical bug for tegra that would cause a regression
with common code patches queued for 3.19"
* tag 'armsoc-for-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: tegra: irq: fix buggy usage of irq_data irq field
ARM: exynos_defconfig: Enable max77802 rtc and clock drivers
ARM: dts: Explicitly set dr_mode on exynos5250-snow
ARM: mvebu: add missing of_node_put() call in coherency.c
Pull ARM fixes from Russell King:
"Another round of relatively small ARM fixes.
Thomas spotted that the strex backoff delay bit was a disable bit, so
it needed to be clear for this to work. Vladimir spotted that using a
restart block for the cache flush operation would return -EINTR, which
userspace was not expecting. Dmitry spotted that the auxiliary
control register accesses for Xscale were not correct"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8226/1: cacheflush: get rid of restarting block
ARM: 8222/1: mvebu: enable strex backoff delay
ARM: 8216/1: xscale: correct auxiliary register in suspend/resume
Pull mips fixes from Ralf Baechle:
"The hopefully final round of fixes for 3.18:
- Fix a number of build errors affecting particular configurations.
- Handle EVA correctly when flushing a signal trampoline and dcache
lines.
- Fix printks printing jibberish.
- Handle 64 bit memory addresses correctly when adding memory chunk
on 32 bit kernels.
- Fix a race condition in the hardware tablewalker code"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: tlbex: Fix potential HTW race on TLBL/M/S handlers
MIPS: Fix address type used for early memory detection.
MIPS: Kconfig: Don't allow both microMIPS and SmartMIPS to be selected.
MIPS: kernel: cps-vec: Set ISA level to mips32r2 for the MIPS MT ASE
MIPS: Netlogic: handle modular AHCI builds
MIPS: Netlogic: handle modular USB case
MIPS: Loongson: Make platform serial setup always built-in.
MIPS: fix EVA & non-SMP non-FPU FP context signal handling
MIPS: cpu-probe: Set the FTLB probability bit on supported cores
MIPS: BMIPS: Fix ".previous without corresponding .section" warnings
MIPS: uaccess.h: Fix strnlen_user comment.
MIPS: r4kcache: Add EVA case for protected_writeback_dcache_line
MIPS: Fix info about plat_setup in arch_mem_init comment
MIPS: rtlx: Remove KERN_DEBUG from pr_debug() arguments in rtlx.c
MIPS: SEAD3: Fix LED device registration.
MIPS: Fix a copy & paste error in unistd.h
Pull powerpc fixes from Michael Ellerman:
"Here are five fixes for you to pull please.
They're all CC'ed to stable except the "Fix PE state format" one which
went in this release"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
powerpc: 32 bit getcpu VDSO function uses 64 bit instructions
powerpc/powernv: Replace OPAL_DEASSERT_RESET with EEH_RESET_DEACTIVATE
powerpc/eeh: Fix PE state format
powerpc/pseries: Fix endiannes issue in RTAS call from xmon
powerpc/powernv: Fix the hmi event version check.
Pull sparc fixlet from David Miller:
"Aparc fix to add dma_cache_sync(), even if a nop it should be provided
if dma_{alloc,free}_noncoherent() is provided too"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Add NOP dma_cache_sync() implementation.
Pull networking fixes from David Miller:
"Several small fixes here:
1) Don't crash in tg3 driver when the number of tx queues has been
configured to be different from the number of rx queues. From
Thadeu Lima de Souza Cascardo.
2) VLAN filter not disabled properly in promisc mode in ixgbe driver,
from Vlad Yasevich.
3) Fix OOPS on dellink op in VTI tunnel driver, from Xin Long.
4) IPV6 GRE driver WCCP code checks skb->protocol for ETH_P_IP
instead of ETH_P_IPV6, whoops. From Yuri Chislov.
5) Socket matching in ping driver is buggy when packet AF does not
match socket's AF. Fix from Jane Zhou.
6) Fix checksum calculation errors in VXLAN due to where the
udp_tunnel6_xmit_skb() helper gets it's saddr/daddr from. From
Alexander Duyck.
7) Fix 5G detection problem in rtlwifi driver, from Larry Finger.
8) Fix NULL deref in tcp_v{4,6}_send_reset, from Eric Dumazet.
9) Various missing netlink attribute verifications in bridging code,
from Thomas Graf.
10) tcp_recvmsg() unconditionally calls ipv4 ip_recv_error even for
ipv6 sockets, whoops. Fix from Willem de Bruijn"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits)
net-timestamp: make tcp_recvmsg call ipv6_recv_error for AF_INET6 socks
bridge: Sanitize IFLA_EXT_MASK for AF_BRIDGE:RTM_GETLINK
bridge: Add missing policy entry for IFLA_BRPORT_FAST_LEAVE
net: Check for presence of IFLA_AF_SPEC
net: Validate IFLA_BRIDGE_MODE attribute length
bridge: Validate IFLA_BRIDGE_FLAGS attribute length
stmmac: platform: fix default values of the filter bins setting
net/mlx4_core: Limit count field to 24 bits in qp_alloc_res
net: dsa: bcm_sf2: reset switch prior to initialization
net: dsa: bcm_sf2: fix unmapping registers in case of errors
tg3: fix ring init when there are more TX than RX channels
tcp: fix possible NULL dereference in tcp_vX_send_reset()
rtlwifi: Change order in device startup
rtlwifi: rtl8821ae: Fix 5G detection problem
Revert "netfilter: conntrack: fix race in __nf_conntrack_confirm against get_next_corpse"
vxlan: Fix boolean flip in VXLAN_F_UDP_ZERO_CSUM6_[TX|RX]
ip6_udp_tunnel: Fix checksum calculation
net-timestamp: Fix a documentation typo
net/ping: handle protocol mismatching scenario
af_packet: fix sparse warning
...
There's a couple of driver fixes here, plus one core fix for the DMA
mapping which wasn't doing the right thing for vmalloc()ed addresses
that hadn't been through kmap(). It's fairly rare to use vmalloc() with
SPI and it's a subset of those users who might fail so it's unsurprising
that this wasn't noticed sooner.
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Merge tag 'spi-v3.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"There's a couple of driver fixes here, plus one core fix for the DMA
mapping which wasn't doing the right thing for vmalloc()ed addresses
that hadn't been through kmap(). It's fairly rare to use vmalloc()
with SPI and it's a subset of those users who might fail so it's
unsurprising that this wasn't noticed sooner"
* tag 'spi-v3.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: sirf: fix word width configuration
spi: Fix mapping from vmalloc-ed buffer to scatter list
spi: dw: Fix dynamic speed change.
Pull input layer fixes from Dmitry Torokhov:
"The main change is to fix breakage in Elantech driver introduced by
the recent commit adding trackpoint reporting to protocol v4. Now we
are trusting the hardware to advertise the trackpoint properly and do
not try to decode the data as trackpoint if firmware told us it is not
present"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - use proper endpoint type
Input: elantech - trust firmware about trackpoint presence
Input: synaptics - adjust min/max on Thinkpad E540
The DLink GO-USB-N150 with revision B1 uses this driver.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is a potential race when probing the TLB in TLBL/M/S exception
handlers for a matching entry. Between the time we hit a TLBL/S/M
exception and the time we get to execute the TLBP instruction, the
HTW may have replaced the TLB entry we are interested in hence the TLB
probe may fail. However, in the existing handlers, we never checked the
status of the TLBP (ie check the result in the C0/Index register). We
fix this by adding such a check when the core implements the HTW. If
we couldn't find a matching entry, we return back and try again.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: <stable@vger.kernel.org> # v3.17+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8599/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
We cannot restart cacheflush safely if a process provides user-defined
signal handler and signal is pending. In this case -EINTR is returned
and it is expected that process re-invokes syscall. However, there are
a few problems with that:
* looks like nobody bothers checking return value from cacheflush
* but if it did, we don't provide the restart address for that, so the
process has to use the same range again
* ...and again, what might lead to looping forever
So, remove cacheflush restarting code and terminate cache flushing
as early as fatal signal is pending.
Cc: stable@vger.kernel.org # 3.12+
Reported-by: Chanho Min <chanho.min@lge.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Under extremely rare conditions, in an MPCore node consisting of at
least 3 CPUs, two CPUs trying to perform a STREX to data on the same
shared cache line can enter a livelock situation.
This patch enables the HW mechanism that overcomes the bug. This fixes
the incorrect setup of the STREX backoff delay bit due to a wrong
description in the specification.
Note that enabling the STREX backoff delay mechanism is done by
leaving the bit *cleared*, while the bit was currently being set by
the proc-v7.S code.
[Thomas: adapt to latest mainline, slightly reword the commit log, add
stable markers.]
Fixes: de4901933f ("arm: mm: Add support for PJ4B cpu and init routines")
Cc: <stable@vger.kernel.org> # v3.8+
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
- enable max77802 rtc and clock drivers for exynos_defconfig
: enable the kernel config options to have the drivers for
max77802 including rtc and 2-ch 32kHz clock outputs
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Merge tag 'samsung-defconfig-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
Pull "Samsung defconfig update for v3.18" from Kukjin Kim:
- enable max77802 rtc and clock drivers for exynos_defconfig
: enable the kernel config options to have the drivers for
max77802 including rtc and 2-ch 32kHz clock outputs
* tag 'samsung-defconfig-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: exynos_defconfig: Enable max77802 rtc and clock drivers
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- explicitly set dr_mode on exynos5250-snow
this is required when kernel is built with USB gadget support.
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Merge tag 'samsung-fixes-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
Pull "Samsung fixes for v3.18" from Kukjin Kim:
- explicitly set dr_mode on exynos5250-snow
this is required when kernel is built with USB gadget support.
* tag 'samsung-fixes-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: dts: Explicitly set dr_mode on exynos5250-snow
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The crazy gic_arch_extn thing that Tegra uses contains multiple
references to the irq field in struct irq_data, and uses this
to directly poke hardware register.
But irq is the *virtual* irq number, something that has nothing
to do with the actual HW irq (stored in the hwirq field). And once
we put the stacked domain code in action, the whole thing explodes,
as these two values are *very* different:
root@bacon-fat:~# cat /proc/interrupts
CPU0 CPU1
16: 25801 2075 GIC 29 twd
17: 0 0 GIC 73 timer0
112: 0 0 GPIO 58 c8000600.sdhci cd
123: 0 0 GPIO 69 c8000200.sdhci cd
279: 1126 0 GIC 122 serial
281: 0 0 GIC 70 7000c000.i2c
282: 0 0 GIC 116 7000c400.i2c
283: 0 0 GIC 124 7000c500.i2c
284: 300 0 GIC 85 7000d000.i2c
[...]
Just replacing all instances of irq with hwirq fixes the issue.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
I used some 64 bit instructions when adding the 32 bit getcpu VDSO
function. Fix it.
Fixes: 18ad51dd34 ("powerpc: Add VDSO version of getcpu")
Cc: stable@vger.kernel.org
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The flag passed to ioda_eeh_phb_reset() should be EEH_RESET_DEACTIVATE,
which is translated to OPAL_DEASSERT_RESET or something else by the
EEH backend accordingly.
The patch replaces OPAL_DEASSERT_RESET with EEH_RESET_DEACTIVATE for
ioda_eeh_phb_reset().
Cc: stable@vger.kernel.org
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Obviously I had wrong format given to the PE state output from
/sys/bus/pci/devices/xxxx/eeh_pe_state with some typoes, which
was introduced by commit 2013add4ce. The patch fixes it up.
Fixes: 2013add4ce ("powerpc/eeh: Show hex prefix for PE state sysfs")
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
On pseries system (LPAR) xmon failed to enter when running in LE mode,
system is hunging. Inititating xmon will lead to such an output on the
console:
SysRq : Entering xmon
cpu 0x15: Vector: 0 at [c0000003f39ffb10]
pc: c00000000007ed7c: sysrq_handle_xmon+0x5c/0x70
lr: c00000000007ed7c: sysrq_handle_xmon+0x5c/0x70
sp: c0000003f39ffc70
msr: 8000000000009033
current = 0xc0000003fafa7180
paca = 0xc000000007d75e80 softe: 0 irq_happened: 0x01
pid = 14617, comm = bash
Bad kernel stack pointer fafb4b0 at eca7cc4
cpu 0x15: Vector: 300 (Data Access) at [c000000007f07d40]
pc: 000000000eca7cc4
lr: 000000000eca7c44
sp: fafb4b0
msr: 8000000000001000
dar: 10000000
dsisr: 42000000
current = 0xc0000003fafa7180
paca = 0xc000000007d75e80 softe: 0 irq_happened: 0x01
pid = 14617, comm = bash
cpu 0x15: Exception 300 (Data Access) in xmon, returning to main loop
xmon: WARNING: bad recursive fault on cpu 0x15
The root cause is that xmon is calling RTAS to turn off the surveillance
when entering xmon, and RTAS is requiring big endian parameters.
This patch is byte swapping the RTAS arguments when running in LE mode.
Cc: stable@vger.kernel.org
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The current HMI event structure is an ABI and carries a version field to
accommodate future changes without affecting/rearranging current structure
members that are valid for previous versions.
The current version check "if (hmi_evt->version != OpalHMIEvt_V1)"
doesn't accomodate the fact that the version number may change in
future.
If firmware starts returning an HMI event with version > 1, this check
will fail and no HMI information will be printed on older kernels.
This patch fixes this issue.
Cc: stable@vger.kernel.org # 3.17+
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
[mpe: Reword changelog]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit fadbe0cd52 entitled "staging:
rtl8188eu:Remove rtw_zmalloc(), wrapper for kzalloc()", the author failed
to note that the original code in the wrapper tested whether the caller
could sleep, and set the flags argument to kzalloc() appropriately.
After the patch, GFP_KERNEL is used unconditionally. Unfortunately, several
of the routines may be entered from an interrupt routine and generate
a BUG splat for every such call. Routine rtw_sitesurvey_cmd() is used in the
example below:
BUG: sleeping function called from invalid context at mm/slub.c:1240
in_atomic(): 1, irqs_disabled(): 0, pid: 756, name: wpa_supplicant
INFO: lockdep is turned off.
CPU: 2 PID: 756 Comm: wpa_supplicant Tainted: G WC O 3.18.0-rc4+ #34
Hardware name: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS Version 4.20 04/17/2014
ffffc90005557000 ffff880216fafaa8 ffffffff816b0bbf 0000000000000000
ffff8800c3b58000 ffff880216fafac8 ffffffff8107af77 0000000000000001
0000000000000010 ffff880216fafb18 ffffffff811b06ce 0000000000000000
Call Trace:
[<ffffffff816b0bbf>] dump_stack+0x4e/0x71
[<ffffffff8107af77>] __might_sleep+0xf7/0x120
[<ffffffff811b06ce>] kmem_cache_alloc_trace+0x4e/0x1f0
[<ffffffffa0888226>] ? rtw_sitesurvey_cmd+0x56/0x2a0 [r8188eu]
[<ffffffffa0888226>] rtw_sitesurvey_cmd+0x56/0x2a0 [r8188eu]
[<ffffffffa088f00d>] rtw_do_join+0x22d/0x370 [r8188eu]
[<ffffffffa088f6e8>] rtw_set_802_11_ssid+0x218/0x3d0 [r8188eu]
[<ffffffffa08c3ca5>] rtw_wx_set_essid+0x1e5/0x410 [r8188eu]
[<ffffffffa08c3ac0>] ? rtw_wx_get_rate+0x50/0x50 [r8188eu]
[<ffffffff816938f1>] ioctl_standard_iw_point+0x151/0x3f0
[<ffffffff81693d52>] ioctl_standard_call+0xb2/0xe0
[<ffffffff81597df7>] ? rtnl_lock+0x17/0x20
[<ffffffff816945a0>] ? iw_handler_get_private+0x70/0x70
[<ffffffff81693ca0>] ? call_commit_handler+0x40/0x40
[<ffffffff81693256>] wireless_process_ioctl+0x176/0x1c0
[<ffffffff81693e79>] wext_handle_ioctl+0x69/0xc0
[<ffffffff8159fe79>] dev_ioctl+0x309/0x5e0
[<ffffffff810be9c7>] ? call_rcu+0x17/0x20
[<ffffffff8156a472>] sock_ioctl+0x142/0x2e0
[<ffffffff811e0c70>] do_vfs_ioctl+0x300/0x520
[<ffffffff81101514>] ? __audit_syscall_entry+0xb4/0x110
[<ffffffff81101514>] ? __audit_syscall_entry+0xb4/0x110
[<ffffffff810102bc>] ? do_audit_syscall_entry+0x6c/0x70
[<ffffffff811e0f11>] SyS_ioctl+0x81/0xa0
[<ffffffff816ba1d2>] system_call_fastpath+0x12/0x17
Additional routines that generate this BUG are rtw_joinbss_cmd(),
rtw_dynamic_chk_wk_cmd(), rtw_lps_ctrl_wk_cmd(), rtw_rpt_timer_cfg_cmd(),
rtw_ps_cmd(), report_survey_event(), report_join_res(), survey_timer_hdl(),
and rtw_check_bcn_info().
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: navin patidar <navin.patidar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
John W. Linville says:
====================
pull request: wireless 2014-11-26
Please pull this little batch of fixes intended for the 3.18 stream...
For the iwlwifi one, Emmanuel says:
"Not all the firmware know how to handle the HOT_SPOT_CMD.
Make sure that the firmware will know this command before
sending it. This avoids a firmware crash."
Along with that, Larry sends a pair of rtlwifi fixes to address some
discrepancies from moving drivers out of staging. Larry says:
"These two patches are needed to fix a regression introduced when
driver rtl8821ae was moved from staging to the regular wireless tree."
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
TCP timestamping introduced MSG_ERRQUEUE handling for TCP sockets.
If the socket is of family AF_INET6, call ipv6_recv_error instead
of ip_recv_error.
This change is more complex than a single branch due to the loadable
ipv6 module. It reuses a pre-existing indirect function call from
ping. The ping code is safe to call, because it is part of the core
ipv6 module and always present when AF_INET6 sockets are active.
Fixes: 4ed2d765 (net-timestamp: TCP timestamping)
Signed-off-by: Willem de Bruijn <willemb@google.com>
----
It may also be worthwhile to add WARN_ON_ONCE(sk->family == AF_INET6)
to ip_recv_error.
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf says:
====================
bridge: Fix missing Netlink message validations
Adds various missing length checks in the bridging code for Netlink
messages and corresponding attributes provided by user space.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Only search for IFLA_EXT_MASK if the message actually carries a
ifinfomsg header and validate minimal length requirements for
IFLA_EXT_MASK.
Fixes: 6cbdceeb ("bridge: Dump vlan information from a bridge port")
Cc: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes: c2d3babf ("bridge: implement multicast fast leave")
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
ndo_bridge_setlink() is currently only called on the slave if
IFLA_AF_SPEC is set but this is a very fragile assumption and may
change in the future.
Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Payload is currently accessed blindly and may exceed valid message
boundaries.
Fixes: a77dcb8c8 ("be2net: set and query VEB/VEPA mode of the PF interface")
Fixes: 815cccbf1 ("ixgbe: add setlink, getlink support to ixgbe and ixgbevf")
Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Payload is currently accessed blindly and may exceed valid message
boundaries.
Fixes: 407af3299 ("bridge: Add netlink interface to configure vlans on bridge ports")
Cc: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
affects nothing but ARM.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Last minute KVM/ARM fixes; even the generic change actually affects
nothing but ARM"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: fix kvm_is_mmio_pfn() and rename to kvm_is_reserved_pfn()
arm/arm64: kvm: drop inappropriate use of kvm_is_mmio_pfn()
arm/arm64: KVM: vgic: Fix error code in kvm_vgic_create()
arm64: KVM: Handle traps of ICC_SRE_EL1 as RAZ/WI
arm64: KVM: fix unmapping with 48-bit VAs
Most of these are fairly standard little fixes, a bmc150 and bmg160 patch
is to make an ABI change to indicated a specific axis in an event rather
than the generic option in the original drivers. As both of these drivers
are new in this cycle it would be ideal to push this minor change through
even though it isn't strictly a fix. A couple of other 'fixes' change
defaults for some settings on these new drivers to more intuitive calues.
Looks like some useful feedback has been coming in for this driver
since it was applied.
* IIO_EVENT_CODE_EXTRACT_DIR bit mask was wrong and has been for a while
0xCF clearly doesn't give a contiguous bitmask.
* kxcjk-1013 range setting was failing to mask out the previous value
in the register and hence was 'enable only'.
* men_z188 device id table wasn't null terminated.
* bmg160 and bmc150 both failed to correctly handling an error in mode
setting.
* bmg160 and bmc150 both had a bug in setting the event direction in the
event spec (leads to an attribute name being incorrect)
* bmg160 defaulted to an open drain output for the interrupt - as a default
this obviously only works with some interrupt chips - hence change the
default to push-pull (note this is a new driver so we aren't going to
cause any regressions with this change).
* bmc150 had an unintuitive default for the rate of change (motion detector)
so change it to 0 (new driver so change of default won't cause any
regressions).
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Merge tag 'iio-fixes-for-3.18c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
Third set of IIO fixes for the 3.18 cycle.
Most of these are fairly standard little fixes, a bmc150 and bmg160 patch
is to make an ABI change to indicated a specific axis in an event rather
than the generic option in the original drivers. As both of these drivers
are new in this cycle it would be ideal to push this minor change through
even though it isn't strictly a fix. A couple of other 'fixes' change
defaults for some settings on these new drivers to more intuitive calues.
Looks like some useful feedback has been coming in for this driver
since it was applied.
* IIO_EVENT_CODE_EXTRACT_DIR bit mask was wrong and has been for a while
0xCF clearly doesn't give a contiguous bitmask.
* kxcjk-1013 range setting was failing to mask out the previous value
in the register and hence was 'enable only'.
* men_z188 device id table wasn't null terminated.
* bmg160 and bmc150 both failed to correctly handling an error in mode
setting.
* bmg160 and bmc150 both had a bug in setting the event direction in the
event spec (leads to an attribute name being incorrect)
* bmg160 defaulted to an open drain output for the interrupt - as a default
this obviously only works with some interrupt chips - hence change the
default to push-pull (note this is a new driver so we aren't going to
cause any regressions with this change).
* bmc150 had an unintuitive default for the rate of change (motion detector)
so change it to 0 (new driver so change of default won't cause any
regressions).
The commit 3b57de958e brought the support for a different amount of
the filter bins, but didn't update the platform driver that without
CONFIG_OF.
Fixes: 3b57de958e (net: stmmac: Support devicetree configs for mcast
and ucast filter entries)
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some VF drivers use the upper byte of "param1" (the qp count field)
in mlx4_qp_reserve_range() to pass flags which are used to optimize
the range allocation.
Under the current code, if any of these flags are set, the 32-bit
count field yields a count greater than 2^24, which is out of range,
and this VF fails.
As these flags represent a "best-effort" allocation hint anyway, they may
safely be ignored. Therefore, the PF driver may simply mask out the bits.
Fixes: c82e9aa0a8 "mlx4_core: resource tracking for HCA resources used by guests"
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: dsa: bcm_sf2: misc bugfixes
This patch series contains two bug fixes:
- first patch fixes an issue on the error path of the driver where we could
have left some of our registers mapped
- second patch enforces the use of a software reset of the switch to guarantee
the HW is in a consistent state prior to software initialization
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Our boot agent may have left the switch in an certain configuration
state, make sure we issue a software reset prior to configuring the
switch in order to ensure the HW is in a consistent state, in particular
transmit queues and internal buffers.
Fixes: 246d7f773c ("net: dsa: add Broadcom SF2 switch driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case we fail to ioremap() one of our registers, we would be leaking
existing mappings, unwind those accordingly on errors.
Fixes: 246d7f773c ("net: dsa: add Broadcom SF2 switch driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 85c8555ff0 ("KVM: check for !is_zero_pfn() in
kvm_is_mmio_pfn()") and renames the function to kvm_is_reserved_pfn.
The problem being addressed by the patch above was that some ARM code
based the memory mapping attributes of a pfn on the return value of
kvm_is_mmio_pfn(), whose name indeed suggests that such pfns should
be mapped as device memory.
However, kvm_is_mmio_pfn() doesn't do quite what it says on the tin,
and the existing non-ARM users were already using it in a way which
suggests that its name should probably have been 'kvm_is_reserved_pfn'
from the beginning, e.g., whether or not to call get_page/put_page on
it etc. This means that returning false for the zero page is a mistake
and the patch above should be reverted.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Instead of using kvm_is_mmio_pfn() to decide whether a host region
should be stage 2 mapped with device attributes, add a new static
function kvm_is_device_pfn() that disregards RAM pages with the
reserved bit set, as those should usually not be mapped as device
memory.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If we detect another vCPU is running we just exit and return 0 as if we
succesfully created the VGIC, but the VGIC wouldn't actual be created.
This shouldn't break in-kernel behavior because the kernel will not
observe the failed the attempt to create the VGIC, but userspace could
be rightfully confused.
Cc: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When running on a system with a GICv3, we currenly don't allow the guest
to access the system register interface of the GICv3. We do this by
clearing the ICC_SRE_EL2.Enable, which causes all guest accesses to
ICC_SRE_EL1 to trap to EL2 and causes all guest accesses to other ICC_
registers to cause an undefined exception in the guest.
However, we currently don't handle the trap of guest accesses to
ICC_SRE_EL1 and will spill out a warning. The trap just needs to handle
the access as RAZ/WI, and a guest that tries to prod this register and
set ICC_SRE_EL1.SRE=1, must read back the value (which Linux already
does) to see if it succeeded, and will thus observe that ICC_SRE_EL1.SRE
was not set.
Add the simple trap handler in the sorted table of the system registers.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
[ardb: added cp15 handling]
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
