| Commit message (Collapse) | Author | Age | Files | Lines |
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Add Nuvoton BMC NPCM750/730/715/705 Pulse Width Modulation (PWM)
and Fan tacho driver.
The Nuvoton BMC NPCM750/730/715/705 supports 8 PWM controller outputs
and 16 Fan controller inputs.
The driver provides a sysfs entries through which the user can
configure the duty-cycle value from 0(off) and 255(full speed)
and read the fan tacho rpm value.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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MAX34451 is a 16-Channel Voltage/Current Monitor and 12-Channel
Sequencer.
Signed-off-by: Kun Yi <kunyi@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Driver obtains PWM and tachometers registers location according to the
system configuration and creates FAN/PWM hwmon objects and a cooling
device. PWM and tachometers are controlled through the on-board
programmable device, which exports its register map. This device could be
attached to any bus type, for which register mapping is supported. Single
instance is created with one PWM control, up to 12 tachometers and one
cooling device. It could be as many instances as programmable device
supports.
Currently driver will be activated from the Mellanox platform driver:
drivers/platform/x86/mlx-platform.c.
For the future ARM based systems it could be activated from the ARM
platform module.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Commit 415eb2a1aaa488 ("hwmon: (nct6775) Fix writing pwmX_mode") changed
the definition of the pwm_mode variable, but did not update the comment
describing it.
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Fix UNSPECIFIED_INT warning reported by checkpatch.pl
Signed-off-by: Lorenz Kaestle <lorenz.kaestle@fau.de>
Signed-off-by: Jakob Albert <jakob.j.albert@fau.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Fix CODE_INDENT error reported by checkpatch.pl
Signed-off-by: Lorenz Kaestle <lorenz.kaestle@fau.de>
Signed-off-by: Jakob Albert <jakob.j.albert@fau.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Fix SPACING errors reported by checkpatch.pl
Signed-off-by: Lorenz Kaestle <lorenz.kaestle@fau.de>
Signed-off-by: Jakob Albert <jakob.j.albert@fau.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 Olof Johansson:
"A small collection of fixes, sort of the usual at this point, all for
i.MX or OMAP:
- Enable ULPI drivers on i.MX to avoid a hang
- Pinctrl fix for touchscreen on i.MX51 ZII RDU1
- Fixes for ethernet clock references on am3517
- mmc0 write protect detection fix for am335x
- kzalloc->kcalloc conversion in an OMAP driver
- USB metastability fix for USB on dra7
- Fix touchscreen wakeup on am437x"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: imx_v4_v5_defconfig: Select ULPI support
ARM: imx_v6_v7_defconfig: Select ULPI support
ARM: dts: omap3: Fix am3517 mdio and emac clock references
ARM: dts: am335x-bone-common: Fix mmc0 Write Protect
bus: ti-sysc: Use 2-factor allocator arguments
ARM: dts: dra7: Disable metastability workaround for USB2
ARM: dts: imx51-zii-rdu1: fix touchscreen pinctrl
ARM: dts: am437x: make edt-ft5x06 a wakeup source
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omap for v4.18-rc cycle
Few dts fixes for regressions for various SoCs and
devices for touchscreen wake, dra7 USB quirk, pinmux
for beaglebone mmc, and emac clock.
Also included is a change for ti-sysc to use kcalloc
that Kees wanted to get into v4.18 as that's the last
one he wanted to fix for improved defense against
allocation overflows.
* tag 'omap-for-v4.18/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap3: Fix am3517 mdio and emac clock references
ARM: dts: am335x-bone-common: Fix mmc0 Write Protect
bus: ti-sysc: Use 2-factor allocator arguments
ARM: dts: dra7: Disable metastability workaround for USB2
ARM: dts: am437x: make edt-ft5x06 a wakeup source
Signed-off-by: Olof Johansson <olof@lixom.net>
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This adjusts the allocator calls to use 2-factor argument call style, as
done treewide already for improved defense against allocation overflows.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- Fix a use-after-free in the endpoint code (Dan Carpenter)
- Stop defaulting CONFIG_PCIE_DW_PLAT_HOST to yes (Geert Uytterhoeven)
- Fix an nfp regression caused by a change in how we limit the number
of VFs we can enable (Jakub Kicinski)
- Fix failure path cleanup issues in the new R-Car gen3 PHY support
(Marek Vasut)
- Fix leaks of OF nodes in faraday, xilinx-nwl, xilinx (Nicholas Mc
Guire)
* tag 'pci-v4.18-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
nfp: stop limiting VFs to 0
PCI/IOV: Reset total_VFs limit after detaching PF driver
PCI: faraday: Add missing of_node_put()
PCI: xilinx-nwl: Add missing of_node_put()
PCI: xilinx: Add missing of_node_put()
PCI: endpoint: Use after free in pci_epf_unregister_driver()
PCI: controller: dwc: Do not let PCIE_DW_PLAT_HOST default to yes
PCI: rcar: Clean up PHY init on failure
PCI: rcar: Shut the PHY down in failpath
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Before 8d85a7a4f2c9 ("PCI/IOV: Allow PF drivers to limit total_VFs to 0"),
pci_sriov_set_totalvfs(pdev, 0) meant "we can enable TotalVFs virtual
functions". After 8d85a7a4f2c9, it means "we can't enable *any* VFs".
That broke this scenario where nfp intends to remove any limit on the
number of VFs that can be enabled:
nfp_pci_probe
nfp_pcie_sriov_read_nfd_limit
nfp_rtsym_read_le("nfd_vf_cfg_max_vfs", &err)
pci_sriov_set_totalvfs(pf->pdev, 0) # if FW didn't expose a limit
...
# userspace writes N to sysfs "sriov_numvfs":
sriov_numvfs_store
pci_sriov_get_totalvfs # now returns 0
return -ERANGE
Prior to 8d85a7a4f2c9, pci_sriov_get_totalvfs() returned TotalVFs, but it
now returns 0.
Remove the pci_sriov_set_totalvfs(pdev, 0) calls so we don't limit the
number of VFs that can be enabled.
Fixes: 8d85a7a4f2c9 ("PCI/IOV: Allow PF drivers to limit total_VFs to 0")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The TotalVFs register in the SR-IOV capability is the hardware limit on the
number of VFs. A PF driver can limit the number of VFs further with
pci_sriov_set_totalvfs(). When the PF driver is removed, reset any VF
limit that was imposed by the driver because that limit may not apply to
other drivers.
Before 8d85a7a4f2c9 ("PCI/IOV: Allow PF drivers to limit total_VFs to 0"),
pci_sriov_set_totalvfs(pdev, 0) meant "we can enable TotalVFs virtual
functions", and the nfp driver used that to remove the VF limit when the
driver unloads.
8d85a7a4f2c9 broke that because instead of removing the VF limit,
pci_sriov_set_totalvfs(pdev, 0) actually sets the limit to zero, and that
limit persists even if another driver is loaded.
We could fix that by making the nfp driver reset the limit when it unloads,
but it seems more robust to do it in the PCI core instead of relying on the
driver.
The regression scenario is:
nfp_pci_probe (driver 1)
...
nfp_pci_remove
pci_sriov_set_totalvfs(pf->pdev, 0) # limits VFs to 0
...
nfp_pci_probe (driver 2)
nfp_rtsym_read_le("nfd_vf_cfg_max_vfs")
# no VF limit from firmware
Now driver 2 is broken because the VF limit is still 0 from driver 1.
Fixes: 8d85a7a4f2c9 ("PCI/IOV: Allow PF drivers to limit total_VFs to 0")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
[bhelgaas: changelog, rename functions]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The call to of_get_next_child() returns a node pointer with refcount
incremented thus it must be explicitly decremented here in the error
path and after the last usage.
Fixes: d3c68e0a7e34 ("PCI: faraday: Add Faraday Technology FTPCI100 PCI Host Bridge driver")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
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The call to of_get_next_child() returns a node pointer with
refcount incremented thus it must be explicitly decremented
here after the last usage.
Fixes: ab597d35ef11 ("PCI: xilinx-nwl: Add support for Xilinx NWL PCIe Host Controller")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The call to of_get_next_child() returns a node pointer with refcount
incremented thus it must be explicitly decremented here after the last
usage.
Fixes: 8961def56845 ("PCI: xilinx: Add Xilinx AXI PCIe Host Bridge IP driver")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
[lorenzo.pieralisi@arm.com: reworked commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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We need to use list_for_each_entry_safe() because the
pci_ep_cfs_remove_epf_group() function frees "group".
Fixes: ef1433f717a2 ("PCI: endpoint: Create configfs entry for each pci_epf_device_id table entry")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
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PCIE_DW_PLAT_HOST does not have any platform dependency, so it should
not default to yes.
Fixes: 1d906b22076e12cf ("PCI: dwc: Add support for EP mode")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
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If the Gen3 PHY fails to power up, the code does not undo the
initialization caused by phy_init(). Add the missing failure
handling to the rcar_pcie_phy_init_gen3() function.
Fixes: 517ca93a7159 ("PCI: rcar: Add R-Car gen3 PHY support")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
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If anything fails past phy_init_fn() and the system is a Gen3 with
a PHY, the PHY will be left on and inited. This is caused by the
phy_init_fn, which is in fact a pointer to rcar_pcie_phy_init_gen3()
function, which starts the PHY, yet has no counterpart in the failpath.
Add that counterpart.
Fixes: 517ca93a7159 ("PCI: rcar: Add R-Car gen3 PHY support")
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
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Pull dma-mapping fix from Christoph Hellwig:
"Revert an incorrect dma-mapping commit for 4.18-rc"
* tag 'dma-mapping-4.18-3' of git://git.infradead.org/users/hch/dma-mapping:
Revert "iommu/intel-iommu: Enable CONFIG_DMA_DIRECT_OPS=y and clean up intel_{alloc,free}_coherent()"
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intel_{alloc,free}_coherent()"
This commit may cause a less than required dma mask to be used for
some allocations, which apparently leads to module load failures for
iwlwifi sometimes.
This reverts commit d657c5c73ca987214a6f9436e435b34fc60f332a.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Fabio Coatti <fabio.coatti@gmail.com>
Tested-by: Fabio Coatti <fabio.coatti@gmail.com>
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git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"We have few odd driver fixes and one email update change for you this
time:
- Driver fixes for k3dma (off by one), pl330 (burst residue
granularity) and omap-dma (incorrect residue_granularity)
- Sinan's email update"
* tag 'dmaengine-fix-4.18-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()
dmaengine: pl330: report BURST residue granularity
MAINTAINERS: Update email-id of Sinan Kaya
dmaengine: ti: omap-dma: Fix OMAP1510 incorrect residue_granularity
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The d->chans[] array has d->dma_requests elements so the > should be
>= here.
Fixes: 8e6152bc660e ("dmaengine: Add hisilicon k3 DMA engine driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The reported residue is already calculated in BURST unit granularity, so
advertise this capability properly to other devices in the system.
Fixes: aee4d1fac887 ("dmaengine: pl330: improve pl330_tx_status() function")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Commit 0198d7bb8a0c ("ASoC: omap-mcbsp: Convert to use the sdma-pcm
instead of omap-pcm") resulted in broken audio playback on OMAP1510
(discovered on Amstrad Delta).
When running on OMAP1510, omap-pcm used to obtain DMA offset from
snd_dmaengine_pcm_pointer_no_residue() based on DMA interrupt triggered
software calculations instead of snd_dmaengine_pcm_pointer() which
depended on residue value calculated from omap_dma_get_src_pos().
Similar code path is still available in now used
sound/soc/soc-generic-dmaengine-pcm.c but it is not triggered.
It was verified already before that omap_get_dma_src_pos() from
arch/arm/plat-omap/dma.c didn't work correctly for OMAP1510 - see
commit 1bdd7419910c ("ASoC: OMAP: fix OMAP1510 broken PCM pointer
callback") for details. Apparently the same applies to its successor,
omap_dma_get_src_pos() from drivers/dma/ti/omap-dma.c.
On the other hand, snd_dmaengine_pcm_pointer_no_residue() is described
as depreciated and discouraged for use in new drivers because of its
unreliable accuracy. However, it seems the only working option for
OPAM1510 now, as long as a software calculated residue is not
implemented as OMAP1510 fallback in omap-dma.
Using snd_dmaengine_pcm_pointer_no_residue() code path instead of
snd_dmaengine_pcm_pointer() in sound/soc/soc-generic-dmaengine-pcm.c
can be triggered in two ways:
- by passing pcm->flags |= SND_DMAENGINE_PCM_FLAG_NO_RESIDUE from
sound/soc/omap/sdma-pcm.c,
- by passing dma_caps.residue_granularity =
DMA_RESIDUE_GRANULARITY_DESCRIPTOR from DMA engine.
Let's do the latter.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Pull IPMI fixes from Corey Minyard:
"A couple of small fixes: one to the BMC side of things that fixes an
interrupt issue, and one oops fix if init fails in a certain way on
the client driver"
* tag 'for-linus-4.18-2' of git://github.com/cminyard/linux-ipmi:
ipmi: kcs_bmc: fix IRQ exception if the channel is not open
ipmi: Cleanup oops on initialization failure
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When kcs_bmc_handle_event calls kcs_force_abort function to handle the
not open (no user running) KCS channel transaction, the returned status
value -ENODEV causes the low level IRQ handler indicating that the irq
was not for him by returning IRQ_NONE. After some time, this IRQ will
be treated to be spurious one, and the exception dump happens.
irq 30: nobody cared (try booting with the "irqpoll" option)
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.15-npcm750 #1
Hardware name: NPCMX50 Chip family
[<c010b264>] (unwind_backtrace) from [<c0106930>] (show_stack+0x20/0x24)
[<c0106930>] (show_stack) from [<c03dad38>] (dump_stack+0x8c/0xa0)
[<c03dad38>] (dump_stack) from [<c0168810>] (__report_bad_irq+0x3c/0xdc)
[<c0168810>] (__report_bad_irq) from [<c0168c34>] (note_interrupt+0x29c/0x2ec)
[<c0168c34>] (note_interrupt) from [<c0165c80>] (handle_irq_event_percpu+0x5c/0x68)
[<c0165c80>] (handle_irq_event_percpu) from [<c0165cd4>] (handle_irq_event+0x48/0x6c)
[<c0165cd4>] (handle_irq_event) from [<c0169664>] (handle_fasteoi_irq+0xc8/0x198)
[<c0169664>] (handle_fasteoi_irq) from [<c016529c>] (__handle_domain_irq+0x90/0xe8)
[<c016529c>] (__handle_domain_irq) from [<c01014bc>] (gic_handle_irq+0x58/0x9c)
[<c01014bc>] (gic_handle_irq) from [<c010752c>] (__irq_svc+0x6c/0x90)
Exception stack(0xc0a01de8 to 0xc0a01e30)
1de0: 00002080 c0a6fbc0 00000000 00000000 00000000 c096d294
1e00: 00000000 00000001 dc406400 f03ff100 00000082 c0a01e94 c0a6fbc0 c0a01e38
1e20: 00200102 c01015bc 60000113 ffffffff
[<c010752c>] (__irq_svc) from [<c01015bc>] (__do_softirq+0xbc/0x358)
[<c01015bc>] (__do_softirq) from [<c011c798>] (irq_exit+0xb8/0xec)
[<c011c798>] (irq_exit) from [<c01652a0>] (__handle_domain_irq+0x94/0xe8)
[<c01652a0>] (__handle_domain_irq) from [<c01014bc>] (gic_handle_irq+0x58/0x9c)
[<c01014bc>] (gic_handle_irq) from [<c010752c>] (__irq_svc+0x6c/0x90)
Exception stack(0xc0a01ef8 to 0xc0a01f40)
1ee0: 00000000 000003ae
1f00: dcc0f338 c0111060 c0a00000 c0a0cc44 c0a0cbe4 c0a1c22b c07bc218 00000001
1f20: dcffca40 c0a01f54 c0a01f58 c0a01f48 c0103524 c0103528 60000013 ffffffff
[<c010752c>] (__irq_svc) from [<c0103528>] (arch_cpu_idle+0x48/0x4c)
[<c0103528>] (arch_cpu_idle) from [<c0681390>] (default_idle_call+0x30/0x3c)
[<c0681390>] (default_idle_call) from [<c0156f24>] (do_idle+0xc8/0x134)
[<c0156f24>] (do_idle) from [<c015722c>] (cpu_startup_entry+0x28/0x2c)
[<c015722c>] (cpu_startup_entry) from [<c067ad74>] (rest_init+0x84/0x88)
[<c067ad74>] (rest_init) from [<c0900d44>] (start_kernel+0x388/0x394)
[<c0900d44>] (start_kernel) from [<0000807c>] (0x807c)
handlers:
[<c041c5dc>] npcm7xx_kcs_irq
Disabling IRQ #30
It needs to change the returned status from -ENODEV to 0. The -ENODEV
was originally used to tell the low level IRQ handler that no user was
running, but not consider the IRQ handling desgin.
And multiple KCS channels share one IRQ handler, it needs to check the
IBF flag before doing force abort. If the IBF is set, after handling,
return 0 to low level IRQ handler to indicate that the IRQ is handled.
Signed-off-by: Haiyue Wang <haiyue.wang@linux.intel.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Commit 93c303d2045b3 "ipmi_si: Clean up shutdown a bit" didn't
copy the behavior of the cleanup in one spot, it needed to
check for a non-NULL interface before cleaning it up.
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Tested-by: Meelis Roos <mroos@linux.ee>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is two minor bug fixes (aacraid, target) and a fix for a
potential exploit in the way sg handles teardown"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sg: mitigate read/write abuse
scsi: aacraid: Fix PD performance regression over incorrect qd being set
scsi: target: Fix truncated PR-in ReadKeys response
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As Al Viro noted in commit 128394eff343 ("sg_write()/bsg_write() is not fit
to be called under KERNEL_DS"), sg improperly accesses userspace memory
outside the provided buffer, permitting kernel memory corruption via
splice(). But it doesn't just do it on ->write(), also on ->read().
As a band-aid, make sure that the ->read() and ->write() handlers can not
be called in weird contexts (kernel context or credentials different from
file opener), like for ib_safe_file_access().
If someone needs to use these interfaces from different security contexts,
a new interface should be written that goes through the ->ioctl() handler.
I've mostly copypasted ib_safe_file_access() over as sg_safe_file_access()
because I couldn't find a good common header - please tell me if you know a
better way.
[mkp: s/_safe_/_check_/]
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The driver fails to set the correct queue depth for native devices, due to
failing to set the device type prior to calling aac_set_safw_target_qd().
This results in slave configure setting the queue depth to 1.
This causes around 30% performance degradation. Fixed by setting the dev
type before trying to set queue depth.
Reported-by: Steve Best <sbest@redhat.com>
Fixes: 0bcb45fb20c21 ("scsi: aacraid: Add helper function to set queue depth")
cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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SPC5r17 states that the contents of the ADDITIONAL LENGTH field are not
altered based on the allocation length, so always calculate and pack the
full key list length even if the list itself is truncated.
According to Maged:
Yes it fixes the "Storage Spaces Persistent Reservation" test in the
Windows 2016 Server Failover Cluster validation suites when having
many connections that result in more than 8 registrations. I tested
your patch on 4.17 with iblock.
This behaviour can be tested using the libiscsi PrinReadKeys.Truncate test.
Cc: stable@vger.kernel.org
Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Tested-by: Maged Mokhtar <mmokhtar@petasan.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull block fixes from Jens Axboe:
"Two minor fixes for this series:
- add LOOP_SET_BLOCK_SIZE as compat ioctl (Evan Green)
- drbd use-after-free fix (Lars Ellenberg)"
* tag 'for-linus-20180706' of git://git.kernel.dk/linux-block:
loop: Add LOOP_SET_BLOCK_SIZE in compat ioctl
drbd: fix access after free
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This change adds LOOP_SET_BLOCK_SIZE as one of the supported ioctls
in lo_compat_ioctl. It only takes an unsigned long argument, and
in practice a 32-bit value works fine.
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We have
struct drbd_requests { ... struct bio *private_bio; ... }
to hold a bio clone for local submission.
On local IO completion, we put that bio, and in case we want to use the
result later, we overload that member to hold the ERR_PTR() of the
completion result,
Which, before v4.3, used to be the passed in "int error",
so we could first bio_put(), then assign.
v4.3-rc1~100^2~21 4246a0b63bd8 block: add a bi_error field to struct bio
changed that:
bio_put(req->private_bio);
- req->private_bio = ERR_PTR(error);
+ req->private_bio = ERR_PTR(bio->bi_error);
Which introduces an access after free,
because it was non obvious that req->private_bio == bio.
Impact of that was mostly unnoticable, because we only use that value
in a multiple-failure case, and even then map any "unexpected" error
code to EIO, so worst case we could potentially mask a more specific
error with EIO in a multiple failure case.
Unless the pointed to memory region was unmapped, as is the case with
CONFIG_DEBUG_PAGEALLOC, in which case this results in
BUG: unable to handle kernel paging request
v4.13-rc1~70^2~75 4e4cbee93d56 block: switch bios to blk_status_t
changes it further to
bio_put(req->private_bio);
req->private_bio = ERR_PTR(blk_status_to_errno(bio->bi_status));
And blk_status_to_errno() now contains a WARN_ON_ONCE() for unexpected
values, which catches this "sometimes", if the memory has been reused
quickly enough for other things.
Should also go into stable since 4.3, with the trivial change around 4.13.
Cc: stable@vger.kernel.org
Fixes: 4246a0b63bd8 block: add a bi_error field to struct bio
Reported-by: Sarah Newman <srn@prgmr.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"The usual collection of driver fixlets:
- build cleanup/fix for the sunxi makefile that tried to save size
but failed and prevented dead code elimination from working
- two Davinci clk driver fixes for a typo causing build failures in
different configurations and an error check that checks the wrong
variable.
- undo the DT ABI breaking imx6ul binding header shuffle that got
merged this cycle"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
dt-bindings: clock: imx6ul: Do not change the clock definition order
clk: davinci: fix a typo (which leads to build failures)
clk: davinci: cfgchip: testing the wrong variable
clk: sunxi-ng: replace lib-y with obj-y
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clk-fixes
Pull davinci clk fixes for 4.18 from David Lechner:
Here are a couple of typo fixes for clk-davinci for 4.18.
* tag 'clk-davinci-fixes-4.18' of https://github.com/dlech/linux:
clk: davinci: fix a typo (which leads to build failures)
clk: davinci: cfgchip: testing the wrong variable
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This should have been DM365, not DM356.
Fixes: 4eff0bebf4ed5 ("clk: davinci: Fix link errors when not all SoCs are enabled")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David Lechner <david@lechnology.com>
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There is a copy and paste bug here. We should be testing "usb1" instead
of "usb0".
Fixes: 58e1e2d2cd89 ("clk: davinci: cfgchip: Add TI DA8XX USB PHY clocks")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Lechner <david@lechnology.com>
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We had commit 06e226c7fb23 ("clk: sunxi-ng: Move all clock types to a
library") and commit 799c43415442 ("kbuild: thin archives make default
for all archs") in the same development cycle, from different trees.
With migration to the thin archive, the entire drivers/clk/sunxi-ng/lib.a
is linked to the vmlinux. This does not break build, but we do not get
any size saving.
However, we do not need to go back to the individual Kconfig options.
The default configuration pulls in all (or most) of the CCU parts anyway.
Also, once we enable CONFIG_LD_DEAD_CODE_DATA_ELIMINATION, we can simply
list all files with obj-y, and the linker will drop all unused functions
by itself.
After the long discussion [1], people there agreed to fix this, but
nobody sent a patch after all. I am doing it now.
I lifted up CONFIG_SUNXI_CCU to drivers/clk/Makefile because everything
in drivers/clk/sunxi-ng/ depends on SUNXI_CCU.
[1] https://patchwork.kernel.org/patch/9796521/
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Pull VFIO fixes from Alex Williamson:
- Make vfio-pci IGD extensions optional via Kconfig (Alex Williamson)
- Remove unused and soon to be removed map_atomic callback from mbochs
sample driver, add unmap callback to avoid dmabuf leaks (Gerd
Hoffmann)
- Fix usage of get_user_pages_longterm() (Jason Gunthorpe)
- Fix sample mbochs driver vm_operations_struct.fault return type
(Souptick Joarder)
* tag 'vfio-v4.18-rc4' of git://github.com/awilliam/linux-vfio:
sample/vfio-mdev: Change return type to vm_fault_t
vfio: Use get_user_pages_longterm correctly
sample/mdev/mbochs: add mbochs_kunmap_dmabuf
sample/mdev/mbochs: remove mbochs_kmap_atomic_dmabuf
vfio/pci: Make IGD support a configurable option
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The patch noted in the fixes below converted get_user_pages_fast() to
get_user_pages_longterm(), however the two calls differ in a few ways.
First _fast() is documented to not require the mmap_sem, while _longterm()
is documented to need it. Hold the mmap sem as required.
Second, _fast accepts an 'int write' while _longterm uses 'unsigned int
gup_flags', so the expression '!!(prot & IOMMU_WRITE)' is only working by
luck as FOLL_WRITE is currently == 0x1. Use the expected FOLL_WRITE
constant instead.
Fixes: 94db151dc892 ("vfio: disable filesystem-dax page pinning")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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Allow the code which provides extensions to support direct assignment
of Intel IGD (GVT-d) to be compiled out of the kernel if desired. The
config option for this was previously automatically enabled on X86,
therefore the default remains Y. This simply provides the option to
disable it even for X86.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"A few more changes for v4.18:
- wire up the two new system calls io_pgetevents and rseq
- fix a register corruption in the expolines code for machines
without EXRL
- drastically reduce the memory utilization of the dasd driver
- fix reference counting for KVM page table pages"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: wire up rseq system call
s390: wire up io_pgetevents system call
s390/mm: fix refcount usage for 4K pgste
s390/dasd: reduce the default queue depth and nr of hardware queues
s390: Correct register corruption in critical section cleanup
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Reduce the default values for the number of hardware queues and queue depth
to significantly reduce the memory footprint of a DASD device.
The memory consumption per DASD device reduces from approximately 40MB to
approximately 1.5MB.
This is necessary to build systems with a large number of DASD devices and
a reasonable amount of memory.
Performance measurements showed that good performance results are possible
with the new default values even on systems with lots of CPUs and lots of
alias devices.
Fixes: e443343e509a ("s390/dasd: blk-mq conversion")
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Pull drm fixes from Dave Airlie:
"This is the drm fixes for rc4.
It's a bit larger than I'd like but the exynos cleanups are pretty
mechanical, and I'd rather have them in sooner rather than later so we
can avoid too much conflicts around them. The non-mechanincal exynos
changes are mostly fixes for new feature recently introduced.
Apart from the exynos updates, we have:
i915:
- GVT and GGTT mapping fixes
amdgpu:
- fix HDMI2.0 4K@60 Hz regression
- Hotplug fixes for dual-GPU laptops to make power management better
- misc vega12 bios fixes, a race fix and some typos.
sii8620 bridge:
- small fixes around mode setting
core:
- use kvzalloc to allocate blob property memory"
* tag 'drm-fixes-2018-07-06' of git://anongit.freedesktop.org/drm/drm: (34 commits)
drm/amd/display: add a check for display depth validity
drm/amd/display: adding ycbcr420 pixel encoding for hdmi
drm/udl: fix display corruption of the last line
drm/bridge/sii8620: Fix link mode selection
drm/bridge/sii8620: Fix display of packed pixel modes
drm/bridge/sii8620: Send AVI infoframe in all MHL versions
drm/amdgpu: fix user fence write race condition
drm/i915: Try GGTT mmapping whole object as partial
drm/amdgpu/pm: fix display count in non-DC path
drm/amdgpu: fix swapped emit_ib_size in vce3
drm: Use kvzalloc for allocating blob property memory
drm/i915/gvt: changed DDI mode emulation type
drm/i915/gvt: fix a bug of partially write ggtt enties
drm/exynos: Replace drm_dev_unref with drm_dev_put
drm/exynos: Replace drm_gem_object_unreference_unlocked with put function
drm/exynos: Replace drm_framebuffer_{un/reference} with put,get functions
drm/exynos: ipp: use correct enum type
drm/exynos: decon5433: Fix WINCONx reset value
drm/exynos: decon5433: Fix per-plane global alpha for XRGB modes
drm/exynos: fimc: Use real buffer width for configuring the hardware
...
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Fixups
- Fix several problems to IPPv2 merged to mainline recentely.
. An align problem of width size that IPP driver incorrectly
calculated the real buffer size.
. Horizontal and vertical flip problem.
. Per-plane global alpha for XRGB modes.
. Incorrect variant of the YUV modes.
- Fix plane overlapping problem.
. The stange order of overlapping planes on XRGB modes
by setting global alpha value to maximum value.
Cleanup
- Rename a enum type, drm_ipp_size_id, to one specific to Exynos,
drm_exynos_ipp_limit_type.
- Replace {un/reference} with {put,get} functions.
. it replaces several reference/unreference functions with Linux
kernel nameing standard.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1530512041-21392-1-git-send-email-inki.dae@samsung.com
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This patch unifies the naming of DRM functions for reference counting
of struct drm_device. The resulting code is more aligned with the rest
of the Linux kernel interfaces.
Signed-off-by: Thomas Zimmermann <tdz@users.sourceforge.net>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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