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Commit 4a9fdbb (staging: core: tiomap3430.c Fix line over 80 characters.)
erroneously removed the parentheses around the function pointer leading
to the following build error (when enabling the build of TI DSP/Bridge
driver):
drivers/staging/tidspbridge/core/tiomap3430.c: In function 'bridge_brd_monitor':
drivers/staging/tidspbridge/core/tiomap3430.c:283:10: error: invalid type argument of unary '*' (have 'u32')
make[3]: *** [drivers/staging/tidspbridge/core/tiomap3430.o] Error 1
Fix this build error properly.
Fixes: 4a9fdbb (staging: core: tiomap3430.c Fix line over 80 characters.)
Cc: Aybuke Ozdemir <aybuke.147@gmail.com>
Cc: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Cc: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Cc: stable <stable@vger.kernel.org> # 3.15
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull block fixes from Jens Axboe:
"A small collection of fixes/changes for the current series. This
contains:
- Removal of dead code from Gu Zheng.
- Revert of two bad fixes that went in earlier in this round, marking
things as __init that were not purely used from init.
- A fix for blk_mq_start_hw_queue() using the __blk_mq_run_hw_queue(),
which could place us wrongly. Make it use the non __ variant,
which handles cases where we are called from the wrong CPU set.
From me.
- A fix for drbd, which allocates discard requests without room for
the SCSI payload. From Lars Ellenberg.
- A fix for user-after-free in the blkcg code from Tejun.
- Addition of limiting gaps in SG lists, if the hardware needs it.
This is the last pre-req patch for blk-mq to enable the full NVMe
conversion. Could wait until 3.17, but it's simple enough so would
be nice to have everything we need for the NVMe port in the 3.17
release. From me"
* 'for-linus' of git://git.kernel.dk/linux-block:
drbd: fix NULL pointer deref in blk_add_request_payload
blk-mq: blk_mq_start_hw_queue() should use blk_mq_run_hw_queue()
block: add support for limiting gaps in SG lists
bio: remove unused macro bip_vec_idx()
Revert "block: add __init to elv_register"
Revert "block: add __init to blkcg_policy_register"
blkcg: fix use-after-free in __blkg_release_rcu() by making blkcg_gq refcnt an atomic_t
floppy: format block0 read error message properly
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The common early_init_dt_add_memory_arch takes the base and size
of a memory region as u64 types. The function never checks if
the base and size can actually fit in a phys_addr_t which may
be smaller than 64-bits. This may result in incorrect memory
being passed to memblock_add if the memory falls outside the
range of phys_addr_t. Add range checks for the base and size if
phys_addr_t is smaller than u64.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
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The AD8500 defines itself as interrupt-controller in DT,
but it doesn't assign DT node to IRQ domain when creates it.
As result, of_irq_xx() helpers don't work because they can't
find necessary IRQ domain.
Hence, fix it by assigning AD8500 core device DT node to IRQ
domain when it's created.
This patch fixes STE u8500 Snowball boot failure reported by Kevin Hilman
https://lkml.org/lkml/2014/5/27/624
Reported-and-tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Without REGMAP_MMIO, building that driver results in a link error:
drivers/built-in.o: In function `davinci_vc_probe':
:(.init.text+0x3c1c): undefined reference to `devm_regmap_init_mmio_clk'
This adds a Kconfig 'select' statement as the usual way to ensure
that REGMAP_MMIO is enabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This driver depends on I2C, which may be a loadable module.
While you'd probably want both to be built-in in practice,
allowing a modular build avoids possible randconfig link
errors.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The UCB1200 / UCB1300 driver uses the MCP_SA11X0 driver, which
can be a loadable module, but this results in a link error
when UCB1200 itself is built-in:
drivers/built-in.o: In function `ucb1x00_io_set_dir':
:(.text+0x4a364): undefined reference to `mcp_reg_write'
drivers/built-in.o: In function `ucb1x00_io_write':
:(.text+0x4a3dc): undefined reference to `mcp_reg_write'
drivers/built-in.o: In function `ucb1x00_io_read':
:(.text+0x4a400): undefined reference to `mcp_reg_read'
drivers/built-in.o: In function `ucb1x00_adc_enable':
:(.text+0x4a460): undefined reference to `mcp_enable'
...
This can easily be resolved by making CONFIG_MCP_UCB1200 itself
a tristate option, since that causes Kconfig to track the
dependency correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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kmalloc can return null. Add a check to avoid potential null
pointer dereference error when the pointer is accessed later.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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We use devm_kzalloc() to allocate memory for the struct vt8500lcd_info
pointer fbi, so there is no need to free it in vt8500lcd_remove().
Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The TDA998x can't handle modes with clocks above 150MHz, or resolutions
larger than 8192x2048.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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One of Jean-Francois patches changed the EDID polling to once every
10ms for 10 interations, whereas the original code did 1ms for 100
interations. This appears to cause boot-time detection to take
noticably longer. Revert this change.
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Currently tda998x_encoder_destroy() calls cec_write() and reg_clear(),
as part of the release procedure. Such calls need to access the I2C bus
and therefore, we need to call them before drm_i2c_encoder_destroy()
which unregisters the I2C device.
This commit moves the latter so it's done afterwards.
Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Signed-off-by: Ezequiel García <ezequiel@vanguardiasur.com.ar>
Cc: <stable@vger.kernel.org> #v3.9+
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Make the TURBOchannel driver bail out if the call to device_register()
failed.
Signed-off-by: Levente Kurusa <levex@linux.com>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6673/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Various minor fixes"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (gpio-fan) Change name used in hwmon_device_register_with_groups
hwmon: (emc1403) Fix missing 'select REGMAP_I2C' in Kconfig
hwmon: (ntc_thermistor) Use the manufacturer name properly
devicetree: bindings: Document murata vendor prefix
hwmon: (w83l786ng) Report correct minimum fan speed
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Pull networking fixes from David Miller:
1) Fix crash in ipvs tot_stats estimator, from Julian Anastasov.
2) Fix OOPS in nf_nat on netns removal, from Florian Westphal.
3) Really really really fix locking issues in slip and slcan tty write
wakeups, from Tyler Hall.
4) Fix checksum offloading in fec driver, from Fugang Duan.
5) Off by one in BPF instruction limit test, from Kees Cook.
6) Need to clear all TSO capability flags when doing software TSO in
tg3 driver, from Prashant Sreedharan.
7) Fix memory leak in vlan_reorder_header() error path, from Li
RongQing.
8) Fix various bugs in xen-netfront and xen-netback multiqueue support,
from David Vrabel and Wei Liu.
9) Fix deadlock in cxgb4 driver, from Li RongQing.
10) Prevent double free of no-cache DST entries, from Eric Dumazet.
11) Bad csum_start handling in skb_segment() leads to crashes when
forwarding, from Tom Herbert.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits)
net: fix setting csum_start in skb_segment()
ipv4: fix dst race in sk_dst_get()
net: filter: Use kcalloc/kmalloc_array to allocate arrays
trivial: net: filter: Change kerneldoc parameter order
trivial: net: filter: Fix typo in comment
net: allwinner: emac: Add missing free_irq
cxgb4: use dev_port to identify ports
xen-netback: bookkeep number of active queues in our own module
tg3: Change nvram command timeout value to 50ms
cxgb4: Not need to hold the adap_rcu_lock lock when read adap_rcu_list
be2net: fix qnq mode detection on VFs
of: mdio: fixup of_phy_register_fixed_link parsing of new bindings
at86rf230: fix irq setup
net: phy: at803x: fix coccinelle warnings
net/mlx4_core: Fix the error flow when probing with invalid VF configuration
tulip: Poll link status more frequently for Comet chips
net: huawei_cdc_ncm: increase command buffer size
drivers: net: cpsw: fix dual EMAC stall when connected to same switch
xen-netfront: recreate queues correctly when reconnecting
xen-netfront: fix oops when disconnected from backend
...
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If the mdio probe function fails in emac_open, the interrupt we just requested
isn't freed. If emac_open is called again, for example because we try to set up
the interface again, the kernel will oops because the interrupt wasn't properly
released.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: <stable@vger.kernel.org> # 3.11+
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 3f85944fe207d0225ef21a2c0951d4946fc9a95d ("net: Add sysfs file
for port number") introduce dev_port to network devices. cxgb4 adapters
have multiple ports on the same PCI function, and used dev_id to
identify those ports. That use was removed by commit
8c367fcbe6549195d2eb11e62bea233f811aad41 ("cxgb4: Do not set
net_device::dev_id to VI index"), since dev_id should be used only when
devices share the same MAC address.
Using dev_port for cxgb4 allows different ports on the same PCI function
to be identified.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The original code uses netdev->real_num_tx_queues to bookkeep number of
queues and invokes netif_set_real_num_tx_queues to set the number of
queues. However, netif_set_real_num_tx_queues doesn't allow
real_num_tx_queues to be smaller than 1, which means setting the number
to 0 will not work and real_num_tx_queues is untouched.
This is bogus when xenvif_free is invoked before any number of queues is
allocated. That function needs to iterate through all queues to free
resources. Using the wrong number of queues results in NULL pointer
dereference.
So we bookkeep the number of queues in xen-netback to solve this
problem. This fixes a regression introduced by multiqueue patchset in
3.16-rc1.
There's another bug in original code that the real number of RX queues
is never set. In current Xen multiqueue design, the number of TX queues
and RX queues are in fact the same. We need to set the numbers of TX and
RX queues to the same value.
Also remove xenvif_select_queue and leave queue selection to core
driver, as suggested by David Miller.
Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
CC: Ian Campbell <ian.campbell@citrix.com>
CC: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 506724c463fcd63477a5e404728a980b71f80bb7 "tg3: Override clock,
link aware and link idle mode during NVRAM dump" changed the timeout
value for nvram command execution from 100ms to 1ms. But the 1ms
timeout value was only sufficient for nvram read operations but not
write operations for most of the devices supported by tg3 driver.
This patch sets the MAX to 50ms. Also it uses usleep_range instead
of udelay.
Signed-off-by: Prashant Sreedharan <prashant@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit 648cd48c9e566f53c5df30d79857e0937ae13b09
The hwmon name attributes must not include '-' so the name must be
rename from gpio-fan to gpio_fan
Signed-off-by: Julien D'Ascenzio <jdascenzio@yahoo.fr>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"A new set of bug fixes for 3.16, containing patches for seven
platforms:
at91:
- drivers/misc fix for Kconfig PWM symbol
- correction of several values in DT after conversion to CCF
- fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc
imx:
- Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
because controller base CD/WP is not working in esdhc driver due to
runtime PM support
- A couple of random ventana gw5xxx board fixes
- Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
IPUv3 driver out of staging tree
- Fix enet/fec clock selection on imx6sl
- Fix display node on imx53-m53evk board
- A couple of Cubox-i updates from Russell, which were omitted from
the merge window due to dependency
integrator:
- fix an OF-related regression against 3.15
mvebu:
- mvebu (v7)
- Fix broken SoC ID detection
- Select ARM_CPU_SUSPEND for v7
- Remove armada38x compatible string (no users yet)
- Enable Dove SoC in mvebu_v7_defconfig
- kirkwood
- Fix phy-connection-type on GuruPlug board
qcom:
- enable gsbi driver in defconfig
- fix section mismatch warning in serial driver
samsung:
- use WFI macro in platform_do_lowpower because exynos cpuhotplug
includes a hardcoded WFI instruction and it causes compile error
in Thumb-2 mode.
- fix GIC reg sizes for exynos4 SoCs
- remove reset timer counter value during boot and resume for mct
to fix a big jump in printk timestamps
- fix pm code to check cortex-A9 for another exynos SoCs
- don't rely on firmware's secondary_cpu_start for mcpm
sti:
- Ethernet clocks were wrongly defined for STiH415/416 platforms
- STiH416 B2020 revision E DTS file name contained uppercase, change to
lowercase"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (33 commits)
ARM: at91/dt: sam9261: remove slow RC osc
ARM: at91/dt: define sam9261ek slow crystal frequency
ARM: at91/dt: sam9261: correctly define mainck
ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values
ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values
misc: atmel_pwm: fix Kconfig symbols
ARM: integrator: fix OF-related regression
ARM: mvebu: Fix the improper use of the compatible string armada38x using a wildcard
ARM: dts: kirkwood: fix phy-connection-type for Guruplug
ARM: EXYNOS: Don't rely on firmware's secondary_cpu_start for mcpm
ARM: dts: imx51-eukrea-mbimxsd51-baseboard: unbreak esdhc.
ARM: dts: imx51-babbage: Fix esdhc setup
ARM: dts: mx5: Move the display out of soc {} node
ARM: dts: mx5: Fix IPU port node placement
ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
ARM: mvebu: Fix broken SoC ID detection
ARM: imx_v6_v7_defconfig: Enable CONFIG_IMX_IPUV3_CORE
ARM: multi_v7_defconfig: Add QCOM GSBI driver
ARM: stih41x: Rename stih416-b2020-revE.dts to stih416-b2020e.dts
tty: serial: msm: Fix section mismatch warning
...
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Merge "First AT91 fixes batch for 3.16" from Nicolas Ferre:
- drivers/misc fix for Kconfig PWM symbol
- correction of several values in DT after conversion to CCF
- fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc
* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
ARM: at91/dt: sam9261: remove slow RC osc
ARM: at91/dt: define sam9261ek slow crystal frequency
ARM: at91/dt: sam9261: correctly define mainck
ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values
ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values
misc: atmel_pwm: fix Kconfig symbols
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fix from Sage Weil:
"This fixes a corner case for cloned RBD images"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: handle parent_overlap on writes correctly
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Discards don't have any payload.
But the scsi layer still expects a bio_vec it can use internally,
see sd_setup_discard_cmnd() and blk_add_request_payload().
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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In commit 4cab259f, the emc1403 driver was converted to use regmap but the
necessary Kconfig option was not added.
Signed-off-by: Josef Gajdusek <atx@atx.name>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Murata Manufacturing Co., Ltd is the vendor for
NTC (Negative Temperature coefficient) based Thermistors.
But, the driver extensively uses "NTC" as the vendor name.
This patch corrects the vendor name also updates the
compatibility strings according to the vendor-prefix.txt
Note: Drivers continue to support the previous compatible strings
but further addition of these compatible strings in device tree
is deprecated.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Current code is buggy, it shows the current fan speed as minimum fan speed.
Fix up show_fan_reg macro to correctly report fan and fan_min speed.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Kevin Lo <kevlo@kevlo.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes and cleanups from Ben Herrenschmidt:
"Here are a handful or two of powerpc fixes and simple/trivial
cleanups. A bunch of them fix ftrace with the new ABI v2 in Little
Endian, the rest is a scattering of fairly simple things"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Don't skip ePAPR spin-table CPUs
powerpc/module: Fix TOC symbol CRC
powerpc/powernv: Remove OPAL v1 takeover
powerpc/kmemleak: Do not scan the DART table
selftests/powerpc: Use the test harness for the TM DSCR test
powerpc/cell: cbe_thermal.c: Cleaning up a variable is of the wrong type
powerpc/kprobes: Fix jprobes on ABI v2 (LE)
powerpc/ftrace: Use pr_fmt() to namespace error messages
powerpc/ftrace: Fix nop of modules on 64bit LE (ABIv2)
powerpc/ftrace: Fix inverted check of create_branch()
powerpc/ftrace: Fix typo in mask of opcode
powerpc: Add ppc_global_function_entry()
powerpc/macintosh/smu.c: Fix closing brace followed by if
powerpc: Remove __arch_swab*
powerpc: Remove ancient DEBUG_SIG code
powerpc/kerenl: Enable EEH for IO accessors
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Pull vhost cleanups from Michael S Tsirkin:
"Two cleanup patches removing code duplication that got introduced by
changes in rc1. Not fixing crashes, but I'd rather not carry the
duplicate code until the next merge window"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost-scsi: don't open-code kvfree
vhost-net: don't open-code kvfree
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AT91 symbols AT91SAM9263, AT91SAM9RL, and AT91SAM9G45 do not exist and this
patch changes them to their correct ARCH_* version.
These symbols are chosen instead of the SOC_* ones because this driver is not
converted to DT.
Anyway, the ATMEL_PWM symbol and the associated driver will be removed soon,
during the move to the PWM sub-system.
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Even though the virtio-scsi spec guarantees that all requests related
to the TMF will have been completed by the time the TMF itself completes,
the request queue's callback might not have run yet. This causes requests
to be completed more than once, and as a result triggers a variety of
BUGs or oopses.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Calling the workqueue interface on uninitialized work items isn't a
good idea even if they're zeroed. It's not failing catastrophically only
through happy accidents.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Add a memory barrier prior to sending a new command to the VIOS
to ensure the VIOS does not receive stale data in the command buffer.
Also add a memory barrier when processing the CRQ for completed commands.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
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If a CRQ reset is triggered for some reason while in the middle
of performing VSCSI adapter initialization, we don't want to
call the done function for the initialization MAD commands as
this will only result in two threads attempting initialization
at the same time, resulting in failures.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Recently had this warning reported:
[ 290.489047] Call Trace:
[ 290.489053] [<ffffffff8169efec>] dump_stack+0x19/0x1b
[ 290.489055] [<ffffffff810ac7a9>] __might_sleep+0x179/0x230
[ 290.489057] [<ffffffff816a4ad5>] mutex_lock_nested+0x55/0x520
[ 290.489061] [<ffffffffa01b9905>] ? bnx2fc_l2_rcv_thread+0xc5/0x4c0 [bnx2fc]
[ 290.489065] [<ffffffffa0174c1a>] fc_vport_id_lookup+0x3a/0xa0 [libfc]
[ 290.489068] [<ffffffffa01b9a6c>] bnx2fc_l2_rcv_thread+0x22c/0x4c0 [bnx2fc]
[ 290.489070] [<ffffffffa01b9840>] ? bnx2fc_vport_destroy+0x110/0x110 [bnx2fc]
[ 290.489073] [<ffffffff8109e0cd>] kthread+0xed/0x100
[ 290.489075] [<ffffffff8109dfe0>] ? insert_kthread_work+0x80/0x80
[ 290.489077] [<ffffffff816b2fec>] ret_from_fork+0x7c/0xb0
[ 290.489078] [<ffffffff8109dfe0>] ? insert_kthread_work+0x80/0x80
Its due to the fact that we call a potentially sleeping function from the bnx2fc
rcv path with preemption disabled (via the get_cpu call embedded in the per-cpu
variable stats lookup in bnx2fc_l2_rcv_thread.
Easy enough fix, we can just move the stats collection later in the function
where we are sure we won't preempt or sleep. This also allows us to not have to
enable pre-emption when doing a per-cpu lookup, since we're certain not to get
rescheduled.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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In case of of error, the bnx2fc_cmd_mgr_alloc() function will call
the bnx2fc_cmd_mgr_free() to perform the cleanup.
The problem is that in one case the latter may try to scan
some not-yet initialized lists, resulting in a kernel panic.
This patch prevents this from happening by freeing the lists
before calling bnx2fc_cmd_mgr_free().
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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debugfs caught this:
WARNING: at lib/debugobjects.c:260 debug_print_object+0x83/0xa0()
ODEBUG: free active (active state 0) object type: work_struct
hint: fc_scsi_scan_rport+0x0/0xd0 [scsi_transport_fc]
CPU: 1 PID: 184 Comm: kworker/1:1 Tainted: G W
-------------- 3.10.0-123.el7.x86_64.debug #1
Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013
Workqueue: fc_wq_5 fc_rport_final_delete [scsi_transport_fc]
Call Trace:
[<ffffffff8169efec>] dump_stack+0x19/0x1b
[<ffffffff8106cbd1>] warn_slowpath_common+0x61/0x80
[<ffffffff8106cc4c>] warn_slowpath_fmt+0x5c/0x80
[<ffffffff8133e003>] debug_print_object+0x83/0xa0
[<ffffffffa04e2f40>] ? fc_parse_wwn+0x100/0x100
[<ffffffff8133f23b>] debug_check_no_obj_freed+0x22b/0x270
[<ffffffffa04e127e>] ? fc_rport_dev_release+0x1e/0x30
[<ffffffff811db3e9>] kfree+0xd9/0x2d0
[<ffffffffa04e127e>] fc_rport_dev_release+0x1e/0x30
[<ffffffff81428032>] device_release+0x32/0xa0
[<ffffffff8132701e>] kobject_release+0x7e/0x1b0
[<ffffffff81326ed8>] kobject_put+0x28/0x60
[<ffffffff81428397>] put_device+0x17/0x20
[<ffffffffa04e5025>] fc_rport_final_delete+0x165/0x210
[<ffffffff810959b0>] process_one_work+0x220/0x710
[<ffffffff81095944>] ? process_one_work+0x1b4/0x710
[<ffffffff81095fbb>] worker_thread+0x11b/0x3a0
[<ffffffff81095ea0>] ? process_one_work+0x710/0x710
[<ffffffff8109e0cd>] kthread+0xed/0x100
[<ffffffff8109dfe0>] ? insert_kthread_work+0x80/0x80
[<ffffffff816b2fec>] ret_from_fork+0x7c/0xb0
[<ffffffff8109dfe0>] ? insert_kthread_work+0x80/0x80
Seems to be because the scan_work work_struct might be active when the housing
fc_rport struct gets freed. Ensure that we cancel it prior to freeing the rport
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reviewed-by: Vasu Dev <vasu.dev@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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The pm8001_get_phy_settings_info() function does not check
the kzalloc() return value and does not free the allocated memory.
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Acked-by: Jack Wang <xjtuwjp@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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commit 0e7c60c [SCSI] be2iscsi: fix memory leak in error path
fixed an potential junk pointer free if mgmt_get_if_info() returned an error
fix it on one more place
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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a jump to 'free_memory' is apparently missing
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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For MIPI, DSI PLL is configured separately in vlv_configure_dsi_pll
during the DSI enable sequence
Causing WARN dump otherwise in dpio_reads
v2: Add IS_CHERRYVIEW check as suggested by Ville
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
This pull-request fixes hdmi power-off order issue, mixer issues
related to power on/off, and includes trivial fixups.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: enable vsync interrupt while waiting for vblank
drm/exynos: soft reset mixer before reconfigure after power-on
drm/exynos: allow multiple layer updates per vsync for mixer
drm/exynos: stop mixer before gating clocks during poweroff
drm/exynos: set power state variable after enabling clocks and power
drm/exynos: disable unused windows on apply
drm/exynos: Fix de-registration ordering
drm/exynos: change zero to NULL for sparse
drm/exynos: dpi: Fix NULL pointer dereference with legacy bindings
drm/exynos: hdmi: fix power order issue
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git://people.freedesktop.org/~robclark/linux into drm-fixes
A handful of fixes from various folks.
* 'msm-fixes-3.16' of git://people.freedesktop.org/~robclark/linux:
drm/msm: fix IOMMU cleanup for -EPROBE_DEFER
drm/msm: use PAGE_ALIGNED instead of IS_ALIGNED(PAGE_SIZE)
drm/msm/hdmi: set hdp clock rate before prepare_enable
drm/msm: storage class should be before const qualifier
drm/msm: Replace type of paddr to uint32_t.
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If user uses wrong ioctl command with _IOC_NONE and argument size
greater than 0, it can cause NULL pointer access from memset of line
463. If _IOC_NONE, don't memset to 0 for kdata.
Signed-off-by: Zhaowei Yuan <zhaowei.yuan@samsung.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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cxgb4_netdev maybe lead to dead lock, since it uses a spin lock, and be called
in both thread and softirq context, but not disable BH, the lockdep report is
below; In fact, cxgb4_netdev only reads adap_rcu_list with RCU protection, so
not need to hold spin lock again.
=================================
[ INFO: inconsistent lock state ]
3.14.7+ #24 Tainted: G C O
---------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
radvd/3794 [HC0[0]:SC1[1]:HE1:SE0] takes:
(adap_rcu_lock){+.?...}, at: [<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
{SOFTIRQ-ON-W} state was registered at:
[<ffffffff810fca81>] __lock_acquire+0x34a/0xe48
[<ffffffff810fd98b>] lock_acquire+0x82/0x9d
[<ffffffff815d6ff8>] _raw_spin_lock+0x34/0x43
[<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
[<ffffffffa0998beb>] cxgb4_inet6addr_handler+0x117/0x12c [cxgb4]
[<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
[<ffffffff815da9f9>] __atomic_notifier_call_chain+0x44/0x6e
[<ffffffff815daa32>] atomic_notifier_call_chain+0xf/0x11
[<ffffffff815b1356>] inet6addr_notifier_call_chain+0x16/0x18
[<ffffffffa01f72e5>] ipv6_add_addr+0x404/0x46e [ipv6]
[<ffffffffa01f8df0>] addrconf_add_linklocal+0x5f/0x95 [ipv6]
[<ffffffffa01fc3e9>] addrconf_notify+0x632/0x841 [ipv6]
[<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
[<ffffffff810e09a1>] __raw_notifier_call_chain+0x9/0xb
[<ffffffff810e09b2>] raw_notifier_call_chain+0xf/0x11
[<ffffffff8151b3b7>] call_netdevice_notifiers_info+0x4e/0x56
[<ffffffff8151b3d0>] call_netdevice_notifiers+0x11/0x13
[<ffffffff8151c0a6>] netdev_state_change+0x1f/0x38
[<ffffffff8152f004>] linkwatch_do_dev+0x3b/0x49
[<ffffffff8152f184>] __linkwatch_run_queue+0x10b/0x144
[<ffffffff8152f1dd>] linkwatch_event+0x20/0x27
[<ffffffff810d7bc0>] process_one_work+0x1cb/0x2ee
[<ffffffff810d7e3b>] worker_thread+0x12e/0x1fc
[<ffffffff810dd391>] kthread+0xc4/0xcc
[<ffffffff815dc48c>] ret_from_fork+0x7c/0xb0
irq event stamp: 3388
hardirqs last enabled at (3388): [<ffffffff810c6c85>]
__local_bh_enable_ip+0xaa/0xd9
hardirqs last disabled at (3387): [<ffffffff810c6c2d>]
__local_bh_enable_ip+0x52/0xd9
softirqs last enabled at (3288): [<ffffffffa01f1d5b>]
rcu_read_unlock_bh+0x0/0x2f [ipv6]
softirqs last disabled at (3289): [<ffffffff815ddafc>]
do_softirq_own_stack+0x1c/0x30
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(adap_rcu_lock);
<Interrupt>
lock(adap_rcu_lock);
*** DEADLOCK ***
5 locks held by radvd/3794:
#0: (sk_lock-AF_INET6){+.+.+.}, at: [<ffffffffa020b85a>]
rawv6_sendmsg+0x74b/0xa4d [ipv6]
#1: (rcu_read_lock){.+.+..}, at: [<ffffffff8151ac6b>]
rcu_lock_acquire+0x0/0x29
#2: (rcu_read_lock){.+.+..}, at: [<ffffffffa01f4cca>]
rcu_lock_acquire.constprop.16+0x0/0x30 [ipv6]
#3: (rcu_read_lock){.+.+..}, at: [<ffffffff810e09b4>]
rcu_lock_acquire+0x0/0x29
#4: (rcu_read_lock){.+.+..}, at: [<ffffffffa0998782>]
rcu_lock_acquire.constprop.40+0x0/0x30 [cxgb4]
stack backtrace:
CPU: 7 PID: 3794 Comm: radvd Tainted: G C O 3.14.7+ #24
Hardware name: Supermicro X7DBU/X7DBU, BIOS 6.00 12/03/2007
ffffffff81f15990 ffff88012fdc36a8 ffffffff815d0016 0000000000000006
ffff8800c80dc2a0 ffff88012fdc3708 ffffffff815cc727 0000000000000001
0000000000000001 ffff880100000000 ffffffff81015b02 ffff8800c80dcb58
Call Trace:
<IRQ> [<ffffffff815d0016>] dump_stack+0x4e/0x71
[<ffffffff815cc727>] print_usage_bug+0x1ec/0x1fd
[<ffffffff81015b02>] ? save_stack_trace+0x27/0x44
[<ffffffff810fbfaa>] ? check_usage_backwards+0xa0/0xa0
[<ffffffff810fc640>] mark_lock+0x11b/0x212
[<ffffffff810fca0b>] __lock_acquire+0x2d4/0xe48
[<ffffffff810fbfaa>] ? check_usage_backwards+0xa0/0xa0
[<ffffffff810fbff6>] ? check_usage_forwards+0x4c/0xa6
[<ffffffff810c6c8a>] ? __local_bh_enable_ip+0xaf/0xd9
[<ffffffff810fd98b>] lock_acquire+0x82/0x9d
[<ffffffffa09989ea>] ? clip_add+0x2c/0x116 [cxgb4]
[<ffffffffa0998782>] ? rcu_read_unlock+0x23/0x23 [cxgb4]
[<ffffffff815d6ff8>] _raw_spin_lock+0x34/0x43
[<ffffffffa09989ea>] ? clip_add+0x2c/0x116 [cxgb4]
[<ffffffffa09987b0>] ? rcu_lock_acquire.constprop.40+0x2e/0x30 [cxgb4]
[<ffffffffa0998782>] ? rcu_read_unlock+0x23/0x23 [cxgb4]
[<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
[<ffffffffa0998beb>] cxgb4_inet6addr_handler+0x117/0x12c [cxgb4]
[<ffffffff810fd99d>] ? lock_acquire+0x94/0x9d
[<ffffffff810e09b4>] ? raw_notifier_call_chain+0x11/0x11
[<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
[<ffffffff815da9f9>] __atomic_notifier_call_chain+0x44/0x6e
[<ffffffff815daa32>] atomic_notifier_call_chain+0xf/0x11
[<ffffffff815b1356>] inet6addr_notifier_call_chain+0x16/0x18
[<ffffffffa01f72e5>] ipv6_add_addr+0x404/0x46e [ipv6]
[<ffffffff810fde6a>] ? trace_hardirqs_on+0xd/0xf
[<ffffffffa01fb634>] addrconf_prefix_rcv+0x385/0x6ea [ipv6]
[<ffffffffa0207950>] ndisc_rcv+0x9d3/0xd76 [ipv6]
[<ffffffffa020d536>] icmpv6_rcv+0x592/0x67b [ipv6]
[<ffffffff810c6c85>] ? __local_bh_enable_ip+0xaa/0xd9
[<ffffffff810c6c85>] ? __local_bh_enable_ip+0xaa/0xd9
[<ffffffff810fd8dc>] ? lock_release+0x14e/0x17b
[<ffffffffa020df97>] ? rcu_read_unlock+0x21/0x23 [ipv6]
[<ffffffff8150df52>] ? rcu_read_unlock+0x23/0x23
[<ffffffffa01f4ede>] ip6_input_finish+0x1e4/0x2fc [ipv6]
[<ffffffffa01f540b>] ip6_input+0x33/0x38 [ipv6]
[<ffffffffa01f5557>] ip6_mc_input+0x147/0x160 [ipv6]
[<ffffffffa01f4ba3>] ip6_rcv_finish+0x7c/0x81 [ipv6]
[<ffffffffa01f5397>] ipv6_rcv+0x3a1/0x3e2 [ipv6]
[<ffffffff8151ef96>] __netif_receive_skb_core+0x4ab/0x511
[<ffffffff810fdc94>] ? mark_held_locks+0x71/0x99
[<ffffffff8151f0c0>] ? process_backlog+0x69/0x15e
[<ffffffff8151f045>] __netif_receive_skb+0x49/0x5b
[<ffffffff8151f0cf>] process_backlog+0x78/0x15e
[<ffffffff8151f571>] ? net_rx_action+0x1a2/0x1cc
[<ffffffff8151f47b>] net_rx_action+0xac/0x1cc
[<ffffffff810c69b7>] ? __do_softirq+0xad/0x218
[<ffffffff810c69ff>] __do_softirq+0xf5/0x218
[<ffffffff815ddafc>] do_softirq_own_stack+0x1c/0x30
<EOI> [<ffffffff810c6bb6>] do_softirq+0x38/0x5d
[<ffffffffa01f1d5b>] ? ip6_copy_metadata+0x156/0x156 [ipv6]
[<ffffffff810c6c78>] __local_bh_enable_ip+0x9d/0xd9
[<ffffffffa01f1d88>] rcu_read_unlock_bh+0x2d/0x2f [ipv6]
[<ffffffffa01f28b4>] ip6_finish_output2+0x381/0x3d8 [ipv6]
[<ffffffffa01f49ef>] ip6_finish_output+0x6e/0x73 [ipv6]
[<ffffffffa01f4a70>] ip6_output+0x7c/0xa8 [ipv6]
[<ffffffff815b1bfa>] dst_output+0x18/0x1c
[<ffffffff815b1c9e>] ip6_local_out+0x1c/0x21
[<ffffffffa01f2489>] ip6_push_pending_frames+0x37d/0x427 [ipv6]
[<ffffffff81558af8>] ? skb_orphan+0x39/0x39
[<ffffffffa020b85a>] ? rawv6_sendmsg+0x74b/0xa4d [ipv6]
[<ffffffffa020ba51>] rawv6_sendmsg+0x942/0xa4d [ipv6]
[<ffffffff81584cd2>] inet_sendmsg+0x3d/0x66
[<ffffffff81508930>] __sock_sendmsg_nosec+0x25/0x27
[<ffffffff8150b0d7>] sock_sendmsg+0x5a/0x7b
[<ffffffff810fd8dc>] ? lock_release+0x14e/0x17b
[<ffffffff8116d756>] ? might_fault+0x9e/0xa5
[<ffffffff8116d70d>] ? might_fault+0x55/0xa5
[<ffffffff81508cb1>] ? copy_from_user+0x2a/0x2c
[<ffffffff8150b70c>] ___sys_sendmsg+0x226/0x2d9
[<ffffffff810fcd25>] ? __lock_acquire+0x5ee/0xe48
[<ffffffff810fde01>] ? trace_hardirqs_on_caller+0x145/0x1a1
[<ffffffff8118efcb>] ? slab_free_hook.isra.71+0x50/0x59
[<ffffffff8115c81f>] ? release_pages+0xbc/0x181
[<ffffffff810fd99d>] ? lock_acquire+0x94/0x9d
[<ffffffff81115e97>] ? read_seqcount_begin.constprop.25+0x73/0x90
[<ffffffff8150c408>] __sys_sendmsg+0x3d/0x5b
[<ffffffff8150c433>] SyS_sendmsg+0xd/0x19
[<ffffffff815dc53d>] system_call_fastpath+0x1a/0x1f
Reported-by: Ben Greear <greearb@candelatech.com>
Cc: Casey Leedom <leedom@chelsio.com>
Cc: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When the AHCI link is disabled, it can't be re-enabled except by
resetting the entire SoC. Rather than doing this silently print
some kernel messages to inform the user, along with how to avoid
this.
tj: Put a long printf format string on a single line.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tejun Heo <tj@kernel.org>
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NCQ feature is unsupported on hisilicon sata controller, so disable
it. This version of IP is used by hip04 and hix5hd2 soc.
tj: "|=" was replaced with "=" for no reason. Restored "|=".
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
Sigend-off-by: Tejun Heo <tj@kernel.org>
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The system suspend flow as following:
1, Freeze all user processes and kenrel threads.
2, Try to suspend all devices.
2.1, If pci device is in RPM suspended state, then pci driver will try
to resume it to RPM active state in the prepare stage.
2.2, xhci_resume function calls usb_hcd_resume_root_hub to queue two
workqueue items to resume usb2&usb3 roothub devices.
2.3, Call suspend callbacks of devices.
2.3.1, All suspend callbacks of all hcd's children, including
roothub devices are called.
2.3.2, Finally, hcd_pci_suspend callback is called.
Due to workqueue threads were already frozen in step 1, the workqueue
items can't be scheduled, and the roothub devices can't be resumed in
this flow. The HCD_FLAG_WAKEUP_PENDING flag which is set in
usb_hcd_resume_root_hub won't be cleared. Finally,
hcd_pci_suspend will return -EBUSY, and system suspend fails.
The reason why this issue doesn't show up very often is due to that
choose_wakeup will be called in step 2.3.1. In step 2.3.1, if
udev->do_remote_wakeup is not equal to device_may_wakeup(&udev->dev), then
udev will resume to RPM active for changing the wakeup settings. This
has been a lucky hit which hides this issue.
For some special xHCI controllers which have no USB2 port, then roothub
will not match hub driver due to probe failed. Then its
do_remote_wakeup will be set to zero, and we won't be as lucky.
xhci driver doesn't need to resume roothub devices everytime like in
the above case. It's only needed when there are pending event TRBs.
This patch should be back-ported to kernels as old as 3.2, that
contains the commit f69e3120df82391a0ee8118e0a156239a06b2afb
"USB: XHCI: resume root hubs when the controller resumes"
Cc: stable@vger.kernel.org # 3.2
Signed-off-by: Wang, Yu <yu.y.wang@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
[use readl() instead of removed xhci_readl(), reword commit message -Mathias]
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When xHCI PCI host is suspended, if do_wakeup is false in xhci_pci_suspend,
xhci_bus_suspend needs to clear all root port wake on bits. Otherwise some Intel
platforms may get a spurious wakeup, even if PCI PME# is disabled.
This patch should be back-ported to kernels as old as 2.6.37, that
contains the commit 9777e3ce907d4cb5a513902a87ecd03b52499569
"USB: xHCI: bus power management implementation".
Cc: stable@vger.kernel.org # 2.6.37
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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