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The GICv3 architecture spec says:
Writing to the active priority registers in any order other than
the following order will result in UNPREDICTABLE behavior:
- ICH_AP0R<n>_EL2.
- ICH_AP1R<n>_EL2.
So let's not pointlessly go against the rule...
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The most important fixes here are:
a) yet another fix to dwc3's EP transfer resource
assignment logic. This time around we will be
pre-allocating transfer resources to avoid any
future issues;
b) two DMA fixes for the old MUSB driver.
c) dwc2's data toggle fix for FS
Other than these, we have a few other minor fixes
elsewhere.
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Merge tag 'fixes-for-v4.5-rc6' of http://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.5-rc6
The most important fixes here are:
a) yet another fix to dwc3's EP transfer resource
assignment logic. This time around we will be
pre-allocating transfer resources to avoid any
future issues;
b) two DMA fixes for the old MUSB driver.
c) dwc2's data toggle fix for FS
Other than these, we have a few other minor fixes
elsewhere.
The ftrace:function event is only displayed for parsing the function tracer
data. It is not used to enable function tracing, and does not include an
"enable" file in its event directory.
Originally, this event was kept separate from other events because it did
not have a ->reg parameter. But perf added a "reg" parameter for its use
which caused issues, because it made the event available to functions where
it was not compatible for.
Commit 9b63776fa3 "tracing: Do not enable function event with enable"
added a TRACE_EVENT_FL_IGNORE_ENABLE flag that prevented the function event
from being enabled by normal trace events. But this commit missed keeping
the function event from being displayed by the "available_events" directory,
which is used to show what events can be enabled by set_event.
One documented way to enable all events is to:
cat available_events > set_event
But because the function event is displayed in the available_events, this
now causes an INVALID error:
cat: write error: Invalid argument
Reported-by: Chunyu Hu <chuhu@redhat.com>
Fixes: 9b63776fa3 "tracing: Do not enable function event with enable"
Cc: stable@vger.kernel.org # 3.4+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Commit e8dd2d2d64 ("Silence compiler warning in arch/x86/kvm/emulate.c",
2015-09-06) broke boot of the Hurd. The bug is that the "default:"
case actually could modify "la", but after the patch this change is
not reflected in *linear.
The bug is visible whenever a non-zero segment base causes the linear
address to wrap around the 4GB mark.
Fixes: e8dd2d2d64
Cc: stable@vger.kernel.org
Reported-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Revert commit b5bd026954 (ACPI, PCI, irq: remove interrupt count
restriction) that introduced a boot regression on some systems
where it caused kmalloc() to be used too early.
Link: http://marc.info/?l=linux-acpi&m=145580159209240&w=2
Reported-by: Nalla, Ravikanth <ravikanth.nalla@hpe.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Revert commit 0971686954 "ACPI / PCI: Simplify acpi_penalize_isa_irq()"
that depends on commit b5bd026954 (ACPI, PCI, irq: remove interrupt
count restriction) which introduced a regression and needs to be
reverted for this reason.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On an MMIO access, we always copy the on-stack buffer info
the shared "run" structure, even if this is a read access.
This ends up leaking up to 8 bytes of uninitialized memory
into userspace, depending on the size of the access.
An obvious fix for this one is to only perform the copy if
this is an actual write.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Previous Commit ("ARC: SMP: No need for CONFIG_ARC_IPI_DBG") removed
the Kconfig option ARC_IPI_DBG. Remove the last reference on this
option.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Update the maintainers info with wiki and mailing list for the meson
platform. Fix a wrong file attribution and add maintainership for the
generic meson platforms.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
- Yet another fix for n900 onenand to avoid corruption. This time to
fix the issue of mounting onenand back and forth between the original
maemo kernel and mainline Linux kernel. And it also seems there will
be two more fixes coming via the MTD tree as issues were discovered
also in the onenand driver during testing.
- Revert tps65217 regulator clean up as it breaks MMC for am335x
variants. The proper way to clean this up is just to rename the
tps65217.dtsi file into tps65217-am335x.dtsi as a similar setup
is used on many am335x boards.
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Merge tag 'omap-for-v4.5/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Two omap fixes for omaps against v4.5-rc5:
- Yet another fix for n900 onenand to avoid corruption. This time to
fix the issue of mounting onenand back and forth between the original
maemo kernel and mainline Linux kernel. And it also seems there will
be two more fixes coming via the MTD tree as issues were discovered
also in the onenand driver during testing.
- Revert tps65217 regulator clean up as it breaks MMC for am335x
variants. The proper way to clean this up is just to rename the
tps65217.dtsi file into tps65217-am335x.dtsi as a similar setup
is used on many am335x boards.
* tag 'omap-for-v4.5/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption
Revert "regulator: tps65217: remove tps65217.dtsi file"
Signed-off-by: Olof Johansson <olof@lixom.net>
Add myself as a co-maintainer for the Alpine support. Also update the
entry to take in account Alpine ARM64 boards, Alpine ARM device trees
and Alpine-specific drivers.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Tsahee Zidenberg <tsahee@annapurnalabs.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
PIN_PA15 macro has the same value as PIN_PA14 so we were overriding PA14
mux/configuration.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Reported-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Fixes: 7f16cb676c ("ARM: at91/dt: add sama5d2 pinmux")
Cc: <stable@vger.kernel.org> # v4.4+
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
- Drop the bogus interrupt-parent from i.MX6 CAAM node, which leads to
the CAAM IRQs not getting unmasked at the GPC level.
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Merge tag 'imx-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
The i.MX fixes for v4.5:
- Drop the bogus interrupt-parent from i.MX6 CAAM node, which leads to
the CAAM IRQs not getting unmasked at the GPC level.
* tag 'imx-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6: remove bogus interrupt-parent from CAAM node
Signed-off-by: Olof Johansson <olof@lixom.net>
- Improve omap_device error message to tell driver writers what is
wrong after commit 5de85b9d57 ("PM / runtime: Re-init runtime PM
states at probe error and driver unbind"). There will be also a
handful of driver related fixes also queued separately. But adding
this error message makes it easy to fix any omap_device using
drivers suffering from this issue so I think it's important to
have.
- Also related to commit 5de85b9d57 discussion, let's fix a bug
where disabling PM runtime via sysfs will also cause the hardware
state to be different from PM runtime state.
- Fix audio clocks for beagle-x15.
- Use wakeup-source instead of gpio-key,wakeup for the new entries
that sneaked in during the merge window.
- Fix a legacy booting vs device tree based booting regression for
n900 where the legacy user space expects to have the device
revision available in /proc/atags also when booted with device
tree.
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Merge tag 'omap-for-v4.5/fixes-rc3-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Few fixes for omaps against v4.5-rc3:
- Improve omap_device error message to tell driver writers what is
wrong after commit 5de85b9d57 ("PM / runtime: Re-init runtime PM
states at probe error and driver unbind"). There will be also a
handful of driver related fixes also queued separately. But adding
this error message makes it easy to fix any omap_device using
drivers suffering from this issue so I think it's important to
have.
- Also related to commit 5de85b9d57 discussion, let's fix a bug
where disabling PM runtime via sysfs will also cause the hardware
state to be different from PM runtime state.
- Fix audio clocks for beagle-x15.
- Use wakeup-source instead of gpio-key,wakeup for the new entries
that sneaked in during the merge window.
- Fix a legacy booting vs device tree based booting regression for
n900 where the legacy user space expects to have the device
revision available in /proc/atags also when booted with device
tree.
* tag 'omap-for-v4.5/fixes-rc3-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix omap_device for module reload on PM runtime forbid
ARM: OMAP2+: Improve omap_device error for driver writers
ARM: DTS: am57xx-beagle-x15: Select SYS_CLK2 for audio clocks
ARM: dts: am335x/am57xx: replace gpio-key,wakeup with wakeup-source property
ARM: OMAP2+: Set system_rev from ATAGS for n900
Signed-off-by: Olof Johansson <olof@lixom.net>
mvebu fixes for 4.5 (part 2)
- Fix the missing mtd flash on linkstation lswtgl
- Use unique machine name for the kirkwood ds112 (for Debian flash-kernel tool)
* tag 'mvebu-fixes-4.5-2' of git://git.infradead.org/linux-mvebu:
ARM: dts: orion5x: fix the missing mtd flash on linkstation lswtgl
ARM: dts: kirkwood: use unique machine name for ds112
Signed-off-by: Olof Johansson <olof@lixom.net>
Both before and after 5f310f739b ("x86/entry/32: Re-implement
SYSENTER using the new C path"), we relied on a uaccess very early
in the SYSENTER path to clear AC. After that change, though, we can
potentially make it all the way into C code with AC set, which
enlarges the attack surface for SMAP bypass by doing SYSENTER with
AC set.
Strengthen the SMAP protection by addding the missing ASM_CLAC right
at the beginning.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/3e36be110724896e32a4a1fe73bacb349d3cba94.1456262295.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
ARConnect/MCIP IPI sending has a retry-wait loop in case caller had
not seen a previous such interrupt. Turns out that it is not needed at
all. Linux cross core calling allows coalescing multiple IPIs to same
receiver - it is fine as long as there is one.
This logic is built into upper layer already, at a higher level of
abstraction. ipi_send_msg_one() sets the actual msg payload, but it only
calls MCIP IPI sending if msg holder was empty (using
atomic-set-new-and-get-old construct). Thus it is unlikely that the
retry-wait looping was ever getting exercised at all.
Cc: Chuck Jordan <cjordan@synopsys.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
There is no real ARC700 based SMP SoC so remove IPI definition.
EZChip's SMP ARC700 is going to use a different intc and IPI provider
anyways.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ARConnect/MCIP Inter-Core-Interrupt module can't send interrupt to
local core. So use core intc capability to trigger software
interrupt to self, using an unsued IRQ #21.
This showed up as csd deadlock with LTP trace_sched on a dual core
system. This test acts as scheduler fuzzer, triggering all sorts of
schedulting activity. Trouble starts with IPI to self, which doesn't get
delivered (effectively lost due to H/w capability), but the msg intended
to be sent remain enqueued in per-cpu @ipi_data.
All subsequent IPIs to this core from other cores get elided due to the
IPI coalescing optimization in ipi_send_msg_one() where a pending msg
implies an IPI already sent and assumes other core is yet to ack it.
After the elided IPI, other core simply goes into csd_lock_wait()
but never comes out as this core never sees the interrupt.
Fixes STAR 9001008624
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org> [4.2]
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
multipath is handling faults due to path failures. This leak does not
happen if blk-mq DM multipath is used. It only occurs if .request_fn DM
multipath is stacked ontop of blk-mq paths (e.g. scsi-mq devices).
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Merge tag 'dm-4.5-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fix from Mike Snitzer:
"Fix a 112 byte leak for each IO request that is requeued while DM
multipath is handling faults due to path failures.
This leak does not happen if blk-mq DM multipath is used. It only
occurs if .request_fn DM multipath is stacked ontop of blk-mq paths
(e.g. scsi-mq devices)"
* tag 'dm-4.5-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq paths
A recent bugfix changed pfn_t to always be 64-bit wide, but did not
change the code in pmem.c, which is now broken on 32-bit architectures
as reported by gcc:
In file included from ../drivers/nvdimm/pmem.c:28:0:
drivers/nvdimm/pmem.c: In function 'pmem_alloc':
include/linux/pfn_t.h:15:17: error: large integer implicitly truncated to unsigned type [-Werror=overflow]
#define PFN_DEV (1ULL << (BITS_PER_LONG_LONG - 3))
This changes the intermediate pfn_flags in struct pmem_device to
be 64 bit wide as well, so they can store the flags correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: db78c22230 ("mm: fix pfn_t vs highmem")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
devm_memremap() returns an ERR_PTR() value in case of error.
However, it returns NULL when memremap() failed. This causes
the caller, such as the pmem driver, to proceed and oops later.
Change devm_memremap() to return ERR_PTR(-ENXIO) when memremap()
failed.
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The original format of these commands from the "NVDIMM DSM Interface
Example" [1] are superseded by the ACPI 6.1 definition of the "NVDIMM Root
Device _DSMs" [2].
[1]: http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf
[2]: http://www.uefi.org/sites/default/files/resources/ACPI_6_1.pdf
"9.20.7 NVDIMM Root Device _DSMs"
Changes include:
1/ New 'restart' fields in ars_status, unfortunately these are
implemented in the middle of the existing definition so this change
is not backwards compatible. The expectation is that shipping
platforms will only ever support the ACPI 6.1 definition.
2/ New status values for ars_start ('busy') and ars_status ('overflow').
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Linda Knippers <linda.knippers@hpe.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Stable bugfixes:
- Fix nfs_size_to_loff_t
- NFSv4: Fix a dentry leak on alias use
Other bugfixes:
- Don't schedule a layoutreturn if the layout segment can be freed immediately.
- Always set NFS_LAYOUT_RETURN_REQUESTED with lo->plh_return_iomode
- rpcrdma_bc_receive_call() should init rq_private_buf.len
- fix stateid handling for the NFS v4.2 operations
- pnfs/blocklayout: fix a memeory leak when using,vmalloc_to_page
- fix panic in gss_pipe_downcall() in fips mode
- Fix a race between layoutget and pnfs_destroy_layout
- Fix a race between layoutget and bulk recalls
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Merge tag 'nfs-for-4.5-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Stable bugfixes:
- Fix nfs_size_to_loff_t
- NFSv4: Fix a dentry leak on alias use
Other bugfixes:
- Don't schedule a layoutreturn if the layout segment can be freed
immediately.
- Always set NFS_LAYOUT_RETURN_REQUESTED with lo->plh_return_iomode
- rpcrdma_bc_receive_call() should init rq_private_buf.len
- fix stateid handling for the NFS v4.2 operations
- pnfs/blocklayout: fix a memeory leak when using,vmalloc_to_page
- fix panic in gss_pipe_downcall() in fips mode
- Fix a race between layoutget and pnfs_destroy_layout
- Fix a race between layoutget and bulk recalls"
* tag 'nfs-for-4.5-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv4.x/pnfs: Fix a race between layoutget and bulk recalls
NFSv4.x/pnfs: Fix a race between layoutget and pnfs_destroy_layout
auth_gss: fix panic in gss_pipe_downcall() in fips mode
pnfs/blocklayout: fix a memeory leak when using,vmalloc_to_page
nfs4: fix stateid handling for the NFS v4.2 operations
NFSv4: Fix a dentry leak on alias use
xprtrdma: rpcrdma_bc_receive_call() should init rq_private_buf.len
pNFS: Always set NFS_LAYOUT_RETURN_REQUESTED with lo->plh_return_iomode
pNFS: Fix pnfs_mark_matching_lsegs_return()
nfs: fix nfs_size_to_loff_t
In commit 11f1a4b975 ("x86: reorganize SMAP handling in user space
accesses") I changed how the stac/clac instructions were generated
around the user space accesses, which then made it possible to do
batched accesses efficiently for user string copies etc.
However, in doing so, I completely spaced out, and didn't even think
about the 32-bit case. And nobody really even seemed to notice, because
SMAP doesn't even exist until modern Skylake processors, and you'd have
to be crazy to run 32-bit kernels on a modern CPU.
Which brings us to Andy Lutomirski.
He actually tested the 32-bit kernel on new hardware, and noticed that
it doesn't work. My bad. The trivial fix is to add the required
uaccess begin/end markers around the raw accesses in <asm/uaccess_32.h>.
I feel a bit bad about this patch, just because that header file really
should be cleaned up to avoid all the duplicated code in it, and this
commit just expands on the problem. But this just fixes the bug without
any bigger cleanup surgery.
Reported-and-tested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When we allocate bitmaps in vgic_vcpu_init_maps, we divide the number of
bits we need by 8 to figure out how many bytes to allocate. However,
bitmap elements are always accessed as unsigned longs, and if we didn't
happen to allocate a size such that size % sizeof(unsigned long) == 0,
bitmap accesses may go past the end of the allocation.
When using KASAN (which does byte-granular access checks), this results
in a continuous stream of BUGs whenever these bitmaps are accessed:
=============================================================================
BUG kmalloc-128 (Tainted: G B ): kasan: bad access detected
-----------------------------------------------------------------------------
INFO: Allocated in vgic_init.part.25+0x55c/0x990 age=7493 cpu=3 pid=1730
INFO: Slab 0xffffffbde6d5da40 objects=16 used=15 fp=0xffffffc935769700 flags=0x4000000000000080
INFO: Object 0xffffffc935769500 @offset=1280 fp=0x (null)
Bytes b4 ffffffc9357694f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffffffc935769500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffffffc935769510: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffffffc935769520: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffffffc935769530: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffffffc935769540: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffffffc935769550: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffffffc935769560: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffffffc935769570: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Padding ffffffc9357695b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Padding ffffffc9357695c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Padding ffffffc9357695d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Padding ffffffc9357695e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Padding ffffffc9357695f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
CPU: 3 PID: 1740 Comm: kvm-vcpu-0 Tainted: G B 4.4.0+ #17
Hardware name: ARM Juno development board (r1) (DT)
Call trace:
[<ffffffc00008e770>] dump_backtrace+0x0/0x280
[<ffffffc00008ea04>] show_stack+0x14/0x20
[<ffffffc000726360>] dump_stack+0x100/0x188
[<ffffffc00030d324>] print_trailer+0xfc/0x168
[<ffffffc000312294>] object_err+0x3c/0x50
[<ffffffc0003140fc>] kasan_report_error+0x244/0x558
[<ffffffc000314548>] __asan_report_load8_noabort+0x48/0x50
[<ffffffc000745688>] __bitmap_or+0xc0/0xc8
[<ffffffc0000d9e44>] kvm_vgic_flush_hwstate+0x1bc/0x650
[<ffffffc0000c514c>] kvm_arch_vcpu_ioctl_run+0x2ec/0xa60
[<ffffffc0000b9a6c>] kvm_vcpu_ioctl+0x474/0xa68
[<ffffffc00036b7b0>] do_vfs_ioctl+0x5b8/0xcb0
[<ffffffc00036bf34>] SyS_ioctl+0x8c/0xa0
[<ffffffc000086cb0>] el0_svc_naked+0x24/0x28
Memory state around the buggy address:
ffffffc935769400: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffffffc935769480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffffffc935769500: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffffffc935769580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffffffc935769600: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
Fix the issue by always allocating a multiple of sizeof(unsigned long),
as we do elsewhere in the vgic code.
Fixes: c1bfb577a ("arm/arm64: KVM: vgic: switch to dynamic allocation")
Cc: stable@vger.kernel.org
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The qword_get() function NUL-terminates its output buffer. If the input
string is in hex format \xXXXX... and the same length as the output
buffer, there is an off-by-one:
int qword_get(char **bpp, char *dest, int bufsize)
{
...
while (len < bufsize) {
...
*dest++ = (h << 4) | l;
len++;
}
...
*dest = '\0';
return len;
}
This patch ensures the NUL terminator doesn't fall outside the output
buffer.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Even though DEVTMPFS is required when our pre-built initramfs
is used it is not the case in general. It is perfectly possible
to use initramfs with device nodes already populated or there
could be other usages, see discussion below for more detials:
http://thread.gmane.org/gmane.comp.embedded.openwrt.devel/37819/focus=37821
This change removes mentioned dependency from arch/arc/Kconfig
updating instead those defconfigs that are usually used with this
kind of pre-build initramfs.
And while at it all touched defconfigs were regenerated via
savedefconfig and some options were removed:
* USB is selected by other options implicitly
* VGA_CONSOLE is disableb for ARC since
031e29b587
* EXT3_FS automatically selects EXT4_FS
* MTDxxx and JFFS2_FS make no sense for AXS because
AXS NAND controller is not upstreamed
* NET_OSCI_LAN is not in upstream as well
* ARCPGU_xxx options make no sense because ARC PGU is not yet
in upstream and when it gets there all config options would
be taken from devicetree
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Now that I have switched to another company, I won't
be able to help by maintaining OMAP USB Support and/or
the MUSB driver.
OMAP USB Support is left Orphaned. MUSB's new
maintainer will be Bin Liu from Texas Instruments
who has accepted to take over starting with v4.6.
Cc: Bin Liu <b-liu@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Commit ac33cdb166 ("usb: musb: Remove ifdefs for musb_host_rx in
musb_host.c part5") introduces a problem setting DMA host mode.
The musb_advance_schedule() is called immediately after receiving an
endpoint RX interrupt without waiting for the DMA transfer to complete.
As a consequence when the dma complete interrupt arrives the in_qh
member of hw_ep is already null an the musb_host_rx() exits on !urb
error case. Fix the done condition that advances the musb schedule.
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
When working in Dual Role Device mode, USB state machine is not kicked,
when host or gadget drivers are loaded. Fix this be explicitly triggering
state detection on client driver load.
Issue is that if the board is booted without micro usb cable and usb
device attached, kernel fails to populate the usb host and device.
The reason for this is that the state machine worker logic only checks
for USB_DR_MODE_PERIPHERAL and USB_DR_MODE_HOST modes to run worker
thread. However if the phy is configured in OTG mode it would fail
to run the state machine, resulting in failure to detect for very
first time.
This patch fixes the issue by removing the explicit checks.
Issue is noticed on Qualcomm Dragon board DB410C.
[srinivas.kandagatla@linaro.org: Added more details to log]
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This patch fixes the register offset used for super-speed connection's
max packet size. Without it using the 338x series of devices in enhanced
mode will only allow full or high speed operation to function correctly.
Signed-off-by: Simon Appleby <simon.appleby@pickeringtest.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Gadgetfs driver called usb_gadget_unregister_driver unconditionally, even
if it didn't register it earlier due to other failures. This patch fixes
this.
Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Retry gadget probe only if the probe result is -EPROBE_DEFER, not on
every probe error.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Currently when setting up an IMR around the kernel's .text section we lock
that IMR, preventing further modification. While superficially this appears
to be the right thing to do, in fact this doesn't account for a legitimate
change in the memory map such as when executing a new kernel via kexec.
In such a scenario a second kernel can have a different size and location
to it's predecessor and can view some of the memory occupied by it's
predecessor as legitimately usable DMA RAM. If this RAM were then
subsequently allocated to DMA agents within the system it could conceivably
trigger an IMR violation.
This patch fixes the this potential situation by keeping the kernel's .text
section IMR lock bit false by default.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: boon.leong.ong@intel.com
Cc: paul.gortmaker@windriver.com
Link: http://lkml.kernel.org/r/1456190999-12685-2-git-send-email-pure.logic@nexus-software.ie
Signed-off-by: Ingo Molnar <mingo@kernel.org>
As per the documentation of the devfreq_dev_profile.target callback, set
the freq argument to the new frequency before returning.
This caused endless messages like this after recent changes in the core:
devfreq 6000c800.actmon: Couldn't update frequency transition information.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reported-by: Tyler Baker <tyler.baker@linaro.org>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Replace another case where the layout 'plh_block_lgets' can trigger
infinite loops in send_layoutget().
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
If the server reboots while there is a layoutget outstanding, then
the call to pnfs_choose_layoutget_stateid() will fail with an EAGAIN
error, which causes an infinite loop in send_layoutget(). The reason
why we never break out of the loop is that the layout 'plh_block_lgets'
field is never cleared.
Fix is to replace plh_block_lgets with NFS_LAYOUT_INVALID_STID, which
can be reset after a new layoutget.
Fixes: ab7d763e47 ("pNFS: Ensure nfs4_layoutget_prepare returns...")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
One is by Yang Shi who added a READ_ONCE_NOCHECK() to the scan of the
stack made by the stack tracer. As the stack tracer scans the entire
kernel stack, KASAN triggers seeing it as a "stack out of bounds" error.
As the scan is looking at the contents of the stack from parent functions.
The NOCHECK() tells KASAN that this is done on purpose, and is not some
kind of stack overflow.
The second fix is to the ftrace selftests, to retrieve the PID of executed
commands from the shell with "$!" and not by parsing "jobs".
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Merge tag 'trace-fixes-v4.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Two more small fixes.
One is by Yang Shi who added a READ_ONCE_NOCHECK() to the scan of the
stack made by the stack tracer. As the stack tracer scans the entire
kernel stack, KASAN triggers seeing it as a "stack out of bounds"
error. As the scan is looking at the contents of the stack from
parent functions. The NOCHECK() tells KASAN that this is done on
purpose, and is not some kind of stack overflow.
The second fix is to the ftrace selftests, to retrieve the PID of
executed commands from the shell with '$!' and not by parsing 'jobs'"
* tag 'trace-fixes-v4.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing, kasan: Silence Kasan warning in check_stack of stack_tracer
ftracetest: Fix instance test to use proper shell command for pids
As the code in this file is being executed within irq context in some
cases, we must avoid the clk_get_rate which uses mutex internally.
Switch the code to use clk_hw_get_rate instead which is non-locking.
This fixes an issue where PM runtime will hang the system if enabled
with a serial console before a suspend-resume cycle.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Fixes: a53ad8ef3d ("clk: ti: Convert to clk_hw based provider APIs")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
- Two scsiback fixes (resource leak and spurious warning).
- Fix DMA mapping of compound pages on arm/arm64.
- Fix some pciback regressions in MSI-X handling.
- Fix a pcifront crash due to some uninitialize state.
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Merge tag 'for-linus-4.5-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
- Two scsiback fixes (resource leak and spurious warning).
- Fix DMA mapping of compound pages on arm/arm64.
- Fix some pciback regressions in MSI-X handling.
- Fix a pcifront crash due to some uninitialize state.
* tag 'for-linus-4.5-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted.
xen/pcifront: Report the errors better.
xen/pciback: Save the number of MSI-X entries to be copied later.
xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY
xen: fix potential integer overflow in queue_reply
xen/arm: correctly handle DMA mapping of compound pages
xen/scsiback: avoid warnings when adding multiple LUNs to a domain
xen/scsiback: correct frontend counting
Pull networking fixes from David Miller:
"Looks like a lot, but mostly driver fixes scattered all over as usual.
Of note:
1) Add conditional sched in nf conntrack in cleanup to avoid NMI
watchdogs. From Florian Westphal.
2) Fix deadlock in nfnetlink cttimeout, also from Floarian.
3) Fix handling of slaves in bonding ARP monitor validation, from Jay
Vosburgh.
4) Callers of ip_cmsg_send() are responsible for freeing IP options,
some were not doing so. Fix from Eric Dumazet.
5) Fix per-cpu bugs in mvneta driver, from Gregory CLEMENT.
6) Fix vlan handling in mv88e6xxx DSA driver, from Vivien Didelot.
7) bcm7xxx PHY driver bug fixes from Florian Fainelli.
8) Avoid unaligned accesses to protocol headers wrt. GRE, from
Alexander Duyck.
9) SKB leaks and other problems in arc_emac driver, from Alexander
Kochetkov.
10) tcp_v4_inbound_md5_hash() releases listener socket instead of
request socket on error path, oops. Fix from Eric Dumazet.
11) Missing socket release in pppoe_rcv_core() that seems to have
existed basically forever. From Guillaume Nault.
12) Missing slave_dev unregister in dsa_slave_create() error path,
from Florian Fainelli.
13) crypto_alloc_hash() never returns NULL, fix return value check in
__tcp_alloc_md5sig_pool. From Insu Yun.
14) Properly expire exception route entries in ipv4, from Xin Long.
15) Fix races in tcp/dccp listener socket dismantle, from Eric
Dumazet.
16) Don't set IFF_TX_SKB_SHARING in vxlan, geneve, or GRE, it's not
legal. These drivers modify the SKB on transmit. From Jiri Benc.
17) Fix regression in the initialziation of netdev->tx_queue_len.
From Phil Sutter.
18) Missing unlock in tipc_nl_add_bc_link() error path, from Insu Yun.
19) SCTP port hash sizing does not properly ensure that table is a
power of two in size. From Neil Horman.
20) Fix initializing of software copy of MAC address in fmvj18x_cs
driver, from Ken Kawasaki"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (129 commits)
bnx2x: Fix 84833 phy command handler
bnx2x: Fix led setting for 84858 phy.
bnx2x: Correct 84858 PHY fw version
bnx2x: Fix 84833 RX CRC
bnx2x: Fix link-forcing for KR2
net: ethernet: davicom: fix devicetree irq resource
fmvj18x_cs: fix incorrect indexing of dev->dev_addr[] when copying the MAC address
Driver: Vmxnet3: Update Rx ring 2 max size
net: netcp: rework the code for get/set sw_data in dma desc
soc: ti: knav_dma: rename pad in struct knav_dma_desc to sw_data
net: ti: netcp: restore get/set_pad_info() functionality
MAINTAINERS: Drop myself as xen netback maintainer
sctp: Fix port hash table size computation
can: ems_usb: Fix possible tx overflow
Bluetooth: hci_core: Avoid mixing up req_complete and req_complete_skb
net: bcmgenet: Fix internal PHY link state
af_unix: Don't use continue to re-execute unix_stream_read_generic loop
unix_diag: fix incorrect sign extension in unix_lookup_by_ino
bnxt_en: Failure to update PHY is not fatal condition.
bnxt_en: Remove unnecessary call to update PHY settings.
...
Remove an un-necessary speed_index lookup for thermal hook in the gpio-fan
driver. The unnecessary speed lookup can hog the system.
Handle negative conversion values correctly in the ads1015 driver.
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Merge tag 'hwmon-for-linus-v4.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Two fixes headed for stable:
- Remove an unnecessary speed_index lookup for thermal hook in the
gpio-fan driver. The unnecessary speed lookup can hog the system.
- Handle negative conversion values correctly in the ads1015 driver"
* tag 'hwmon-for-linus-v4.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (gpio-fan) Remove un-necessary speed_index lookup for thermal hook
hwmon: (ads1015) Handle negative conversion values correctly
