This makes the code understandable at least. No functional changes.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The code is mirrorred in scrolldelta implementations of both vgacon
and sisusb. Let's move the code to a separate helper where we will
perform a common cleanup and further changes.
While we are moving the code, make it linear and save one indentation
level. This is done by returning from the "!lines" then-branch
immediatelly. This allows flushing the else-branch 1 level to the
left, obviously.
Few more new lines and comments were added too.
And do not forget to export the helper function given sisusb can be
built as module.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: <linux-fbdev@vger.kernel.org>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Both scrup and scrdown are copies of the same code except source and
destination pointers computation. Unify those functions into a single
one named con_scroll.
Note that scrdown used step to compute the destination, while scrup
did the computation explicitly. We sticked to the latter here.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Scrolling helpers scrup and scrdown both accept 'top' and 'bottom' as
unsigned int. Number of lines 'nr' is accepted as int, but all callers
pass down unsigned too. So change the type of 'nr' to unsigned too.
Now, promote unsigned int from the helpers up to the con_scroll
hook which actually accepted all those as signed int.
Next, the 'dir' parameter can have only two values and we define
constants for that: SM_UP and SM_DOWN. Switch them to enum and do
proper type checking on 'dir' too.
Finally, document the behaviour of the hook.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: <linux-fbdev@vger.kernel.org>
Cc: <linux-usb@vger.kernel.org>
Cc: <linux-parisc@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fintek F81865 is a LPC to 6 UARTs SuperIO. It has less functional UARTs
likes F81866. It's also need check the IRQ mode with system assigned,
but the configuration is not the same with F81216 series.
F81865 IRQ Mode setting:
0xf0
Bit1: IRQ_MODE0
Bit0: Share mode (always on)
Level/Low: IRQ_MODE0:0
Edge/High: IRQ_MODE0:1
The following list is brief descriptions of F81865:
F81865 (0704)
9Bit(not implements with mainline)
RS485(implemented)
Suggested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fintek F81866 is a LPC to 6 UARTs SuperIO. It has fully functional UARTs
likes F81216H. It's also need check the IRQ mode with system assigned,
but the configuration is not the same with F81216 series.
F81866 IRQ Mode setting:
0xf0
Bit1: IRQ_MODE0
Bit0: Share mode (always on)
0xf6
Bit3: IRQ_MODE1
Level/Low: IRQ_MODE0:0, IRQ_MODE1:0
Edge/High: IRQ_MODE0:1, IRQ_MODE1:0
The following list is brief descriptions of F81866:
F81866 (1010)
9Bit/High baud rate(not implements with mainline)
RS485, 128Bytes FIFO (implemented)
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fintek F81216 is a LPC to 4 UARTs device. It's the F81216 series but
support less functional than F81216AD/F81216H
The following list is brief descriptions of F81216 series:
F81216H (0105)
9Bit/High baud rate(not implements with mainline)
RS485, 128Bytes FIFO (implemented)
F81216AD (0216)
9Bit(not implements with mainline)
RS485(implemented)
F81216 (0208)
basically 16550A
Suggested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Fintek F81216H had maximum 128Bytes FIFO, but some BIOS configurated
as normal 16Bytes FIFO. This patch will set 128Bytes FIFO and trigger
level multiplier as 4x when F81216H detected.
Default 16550A trigger level is 8Bytes. When this patch applied, the
trigger level will change to 8Byte x 4 = 32Byte. It can be reduce the RX
incoming interrupts.
Suggested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Set IRQ Mode when port probed in probe_setup_port()
It should hold the IO port premission via fintek_8250_enter_key() and
release via fintek_8250_exit_key() when we configure the SuperIO.
This patch will move all SuperIO configure operations to
probe_setup_port() to reduce fintek_8250_enter_key() and
fintek_8250_exit_key() usage.
Suggested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If we need to access SuperIO registers, It should write register offset
to base_addr and read/write value to base_addr + 1 to perform read/write.
We can make it more simply with write/read functions.
This patch add sio_read_reg()/sio_write_reg()/sio_write_mask_reg() to
reduce SuperIO register operation with lot of outb()/inb().
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Transfer the device-tree pxa uart handling from 8250_of to the new
8250_pxa. As a corollary, add the early console definition into
8250_pxa.
This enables to have the same uart node for the early console and the
normal uart.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of a direct assignment use pci_irq_vector() call as it's done for the
other case.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The use of IRQF_ONESHOT when registering an interrupt handler with
request_irq() is non-sensical.
Not only that, it also prevents the handler from being threaded when it
otherwise should be w/ IRQ_FORCED_THREADING is enabled. This causes the
following deadlock observed by Sean Nyekjaer on -rt:
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[..]
rt_spin_lock_slowlock from queue_kthread_work
queue_kthread_work from sc16is7xx_irq
sc16is7xx_irq [sc16is7xx] from handle_irq_event_percpu
handle_irq_event_percpu from handle_irq_event
handle_irq_event from handle_level_irq
handle_level_irq from generic_handle_irq
generic_handle_irq from mxc_gpio_irq_handler
mxc_gpio_irq_handler from mx3_gpio_irq_handler
mx3_gpio_irq_handler from generic_handle_irq
generic_handle_irq from __handle_domain_irq
__handle_domain_irq from gic_handle_irq
gic_handle_irq from __irq_svc
__irq_svc from rt_spin_unlock
rt_spin_unlock from kthread_worker_fn
kthread_worker_fn from kthread
kthread from ret_from_fork
Fixes: 9e6f4ca3e5 ("sc16is7xx: use kthread_worker for tx_work and irq")
Reported-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Josh Cartwright <joshc@ni.com>
Cc: linux-rt-users@vger.kernel.org
Cc: Jakub Kicinski <moorray3@wp.pl>
Cc: stable@vger.kernel.org
Cc: linux-serial@vger.kernel.org
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Julia Cartwright <julia@ni.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Enable MWI mechanism if PCI bus master supports it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need to set PCI bus mastering when device is not doing any DMA.
Though on Intel Quark DMA is a part of UART IP and thus shares same device in
Linux kernel.
Enable bus mastering only for Quark case.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fsl_lpuart cannot be used with kgdb because the kgdb
initcall is called before the driver's init.
Move kgdb to be initialized after all serial drivers
have been inited.
Signed-off-by: Nicolae Rosia <nicolae_rosia@mentor.com>
Signed-off-by: Stefan Golinschi <stefan.golinschi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds polling functions as used by kgdb.
Signed-off-by: Nicolae Rosia <nicolae_rosia@mentor.com>
Signed-off-by: Stefan Golinschi <stefan.golinschi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds function pl011_console_match() that implements
method match of struct console. It allows to match consoles against
data specified in a string, for example taken from command line or
compiled by ACPI SPCR table handler.
This patch was merged to tty-next but then reverted because of
conflict with
commit 46e36683f4 ("serial: earlycon: Extend earlycon command line option to support 64-bit addresses")
Now it is fixed.
Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Tested-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pxa2xx-uart was a separate uart platform driver. It was declaring
the same device names and numbers as 8250 driver. As a result,
it was impossible to use 8250 driver on PXA SoCs.
Upon closer examination pxa2xx-uart turned out to be a clone of
8250_core driver.
Workaround for Erratum #19 according to Marvel(R) PXA270M Processor
Specification Update (April 19, 2010) is dropped. 8250_core reads
from FIFO immediately after checking DR bit in LSR.
The patch leaves the original SERIAL_PXA driver around. The original
driver is just marked DEPRECATED in Kconfig and C source. When
the original driver is considered safe to remove, no changes
to SERIAL_8250 will be necessary.
Compiling SERIAL_8250_CONSOLE and SERIAL_PXA_CONSOLE even without
SERIAL_8250_PXA breaks console for SERIAL_PXA. For this reasons, the new
and the original drivers are made mutually exclusive.
Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
CC: Heikki Krogerus <heikki.krogerus@linux.intel.com>
CC: James Cameron <quozl@laptop.org>
CC: Robert Jarzmik <robert.jarzmik@free.fr>
CC: Russell King <linux@arm.linux.org.uk>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
[rebased on v4.8]
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Fallout from the merge window, refactoring UBI code introduced some issues.
- Fixes for an UBIFS readdir bug which can cause getdents() to busy loop
for ever and a bug in the UBIFS xattr code.
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Merge tag 'upstream-4.9-rc2' of git://git.infradead.org/linux-ubifs
Pull UBI[FS] fixes from Richard Weinberger:
"This contains fixes for issues in both UBI and UBIFS:
- Fallout from the merge window, refactoring UBI code introduced some
issues.
- Fixes for an UBIFS readdir bug which can cause getdents() to busy
loop for ever and a bug in the UBIFS xattr code"
* tag 'upstream-4.9-rc2' of git://git.infradead.org/linux-ubifs:
ubifs: Abort readdir upon error
UBI: Fix crash in try_recover_peb()
ubi: fix swapped arguments to call to ubi_alloc_aeb
ubifs: Fix xattr_names length in exit paths
ubifs: Rename ubifs_rename2
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"A few bug fixes and add some missing KERN_CONT annotations"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: add missing KERN_CONT to a few more debugging uses
fscrypto: lock inode while setting encryption policy
ext4: correct endianness conversion in __xattr_check_inode()
fscrypto: make XTS tweak initialization endian-independent
ext4: do not advertise encryption support when disabled
jbd2: fix incorrect unlock on j_list_lock
ext4: super.c: Update logging style using KERN_CONT
Pull SCSI target fixes from Nicholas Bellinger:
"Here are the outstanding target-pending fixes for v4.9-rc2.
This includes:
- Fix v4.1.y+ reference leak regression with concurrent TMR
ABORT_TASK + session shutdown. (Vaibhav Tandon)
- Enable tcm_fc w/ SCF_USE_CPUID to avoid host exchange timeouts
(Hannes)
- target/user error sense handling fixes. (Andy + MNC + HCH)
- Fix iscsi-target NOP_OUT error path iscsi_cmd descriptor leak
(Varun)
- Two EXTENDED_COPY SCSI status fixes for ESX VAAI (Dinesh Israni +
Nixon Vincent)
- Revert a v4.8 residual overflow change, that breaks sg_inq with
small allocation lengths.
There are a number of folks stress testing the v4.1.y regression fix
in their environments, and more folks doing iser-target I/O stress
testing atop recent v4.x.y code.
There is also one v4.2.y+ RCU conversion regression related to
explicit NodeACL configfs changes, that is still being tracked down"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target/tcm_fc: use CPU affinity for responses
target/tcm_fc: Update debugging statements to match libfc usage
target/tcm_fc: return detailed error in ft_sess_create()
target/tcm_fc: print command pointer in debug message
target: fix potential race window in target_sess_cmd_list_waiting()
Revert "target: Fix residual overflow handling in target_complete_cmd_with_length"
target: Don't override EXTENDED_COPY xcopy_pt_cmd SCSI status code
target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE
target: Re-add missing SCF_ACK_KREF assignment in v4.1.y
iscsi-target: fix iscsi cmd leak
iscsi-target: fix spelling mistake "Unsolicitied" -> "Unsolicited"
target/user: Fix comments to not refer to data ring
target/user: Return an error if cmd data size is too large
target/user: Use sense_reason_t in tcmu_queue_cmd_ring
I was on vacation during the merge window (a long vacation)
but this is a bug fix that should go in and a new driver that shouldn't
hurt anything.
This has been in linux-next for a month or so.
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Merge tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi
Pull IPMI updates from Corey Minyard:
"A small bug fix and a new driver for acting as an IPMI device.
I was on vacation during the merge window (a long vacation) but this
is a bug fix that should go in and a new driver that shouldn't hurt
anything.
This has been in linux-next for a month or so"
* tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi: fix crash on reading version from proc after unregisted bmc
ipmi/bt-bmc: remove redundant return value check of platform_get_resource()
ipmi/bt-bmc: add a dependency on ARCH_ASPEED
ipmi: Fix ioremap error handling in bt-bmc
ipmi: add an Aspeed BT IPMI BMC driver
Pull timer updates from Thomas Gleixner:
"This updates contains:
- A revert which addresses a boot failure on ARM Sun5i platforms
- A new clocksource driver, which has been delayed beyond rc1 due to
an interrupt driver issue which was unearthed by this driver. The
debugging of that issue and the discussion about the proper
solution made this driver miss the merge window. There is no point
in delaying it for a full cycle as it completes the basic mainline
support for the new JCore platform and does not create any risk
outside of that platform"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "clocksource/drivers/timer_sun5i: Replace code by clocksource_mmio_init"
clocksource: Add J-Core timer/clocksource driver
of: Add J-Core timer bindings
Pull x86 fixes from Ingo Molnar:
"Three fixes, a hw-enablement and a cross-arch fix/enablement change:
- SGI/UV fix for older platforms
- x32 signal handling fix
- older x86 platform bootup APIC fix
- AVX512-4VNNIW (Neural Network Instructions) and AVX512-4FMAPS
(Multiply Accumulation Single precision instructions) enablement.
- move thread_info back into x86 specific code, to make life easier
for other architectures trying to make use of
CONFIG_THREAD_INFO_IN_TASK_STRUCT=y"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot/smp: Don't try to poke disabled/non-existent APIC
sched/core, x86: Make struct thread_info arch specific again
x86/signal: Remove bogus user_64bit_mode() check from sigaction_compat_abi()
x86/platform/UV: Fix support for EFI_OLD_MEMMAP after BIOS callback updates
x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features
x86/vmware: Skip timer_irq_works() check on VMware
Pull vmap stack fixes from Ingo Molnar:
"This is fallout from CONFIG_HAVE_ARCH_VMAP_STACK=y on x86: stack
accesses that used to be just somewhat questionable are now totally
buggy.
These changes try to do it without breaking the ABI: the fields are
left there, they are just reporting zero, or reporting narrower
information (the maps file change)"
* 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
mm: Change vm_is_stack_for_task() to vm_is_stack_for_current()
fs/proc: Stop trying to report thread stacks
fs/proc: Stop reporting eip and esp in /proc/PID/stat
mm/numa: Remove duplicated include from mprotect.c
Pull irq fixes from Ingo Molnar:
"Mostly irqchip driver fixes, plus a symbol export"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kernel/irq: Export irq_set_parent()
irqchip/gic: Add missing \n to CPU IF adjustment message
irqchip/jcore: Don't show Kconfig menu item for driver
irqchip/eznps: Drop pointless static qualifier in nps400_of_init()
irqchip/gic-v3-its: Fix entry size mask for GITS_BASER
irqchip/gic-v3-its: Fix 64bit GIC{R,ITS}_TYPER accesses
Pull EFI fixes from Ingo Molnar:
"Add Ard Biesheuvel as EFI co-maintainer, plus fix an ARM build bug
with older toolchains"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/arm: Fix absolute relocation detection for older toolchains
MAINTAINERS: Add myself as EFI maintainer
Apparently trying to poke a disabled or non-existent APIC
leads to a box that doesn't even boot. Let's not do that.
No real clue if this is the right fix, but at least my
P3 machine boots again.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: dyoung@redhat.com
Cc: kexec@lists.infradead.org
Cc: stable@vger.kernel.org
Fixes: 2a51fe083e ("arch/x86: Handle non enumerated CPU after physical hotplug")
Link: http://lkml.kernel.org/r/1477102684-5092-1-git-send-email-ville.syrjala@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Fixes marked for stable:
- Prevent unlikely crash in copro_calculate_slb() (Frederic Barrat)
- cxl: Prevent adapter reset if an active context exists (Vaibhav Jain)
Fixes for code merged this cycle:
- Fix boot on systems with uncompressed kernel image (Heiner Kallweit)
- Drop dump_numa_memory_topology() (Michael Ellerman)
- Fix numa topology console print (Aneesh Kumar K.V)
- Ignore the pkey system calls for now (Stephen Rothwell)
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Merge tag 'powerpc-4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes marked for stable:
- Prevent unlikely crash in copro_calculate_slb() (Frederic Barrat)
- cxl: Prevent adapter reset if an active context exists (Vaibhav Jain)
Fixes for code merged this cycle:
- Fix boot on systems with uncompressed kernel image (Heiner Kallweit)
- Drop dump_numa_memory_topology() (Michael Ellerman)
- Fix numa topology console print (Aneesh Kumar K.V)
- Ignore the pkey system calls for now (Stephen Rothwell)"
* tag 'powerpc-4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Ignore the pkey system calls for now
powerpc: Fix numa topology console print
powerpc/mm: Drop dump_numa_memory_topology()
cxl: Prevent adapter reset if an active context exists
powerpc/boot: Fix boot on systems with uncompressed kernel image
powerpc/mm: Prevent unlikely crash in copro_calculate_slb()
Specifics:
- Update the ACPI WDAT-based watchdog driver to ping the hardware
during system resume to prevent a reset from occurring after the
resume is complete (Mika Westerberg).
- Fix the return value of the pcc_mbox_request_channel() stub for
CONFIG_PCC unset (Hoan Tran).
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Merge tag 'acpi-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix an issue related to system resume in the new WDAT-based
watchdog driver and a return value of a stub function in the ACPI CPPC
framework.
Specifics:
- Update the ACPI WDAT-based watchdog driver to ping the hardware
during system resume to prevent a reset from occurring after the
resume is complete (Mika Westerberg).
- Fix the return value of the pcc_mbox_request_channel() stub for
CONFIG_PCC unset (Hoan Tran)"
* tag 'acpi-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
watchdog: wdat_wdt: Ping the watchdog on resume
mailbox: PCC: Fix return value of pcc_mbox_request_channel()
- Fix for 32bit accesses that should be 64bit on 64bit machines
- Fix for a field decoding macro
- Beautify a warning message
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Merge tag 'gic-fixes-for-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull GIC updates from Marc Zyngier:
- Fix for 32bit accesses that should be 64bit on 64bit machines
- Fix for a field decoding macro
- Beautify a warning message
Five small fixes. Some of these, like the nested spinlock overwriting saved
flags and the Kasan use after free look serious, but they seem not to have
been picked up in testing or seen in the field. The biggest user visible
issue is probably the wrong device handler for Clariion, which means that alua
doesn't bind to the array like it should.
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Five small fixes.
Some of these, like the nested spinlock overwriting saved flags and
the Kasan use after free look serious, but they seem not to have been
picked up in testing or seen in the field.
The biggest user visible issue is probably the wrong device handler
for Clariion, which means that alua doesn't bind to the array like it
should"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ipr: Fix async error WARN_ON
scsi: zfcp: spin_lock_irqsave() is not nestable
scsi: Remove one useless stack variable
scsi: Fix use-after-free
scsi: Replace wrong device handler name for CLARiiON arrays
Pull block fixes from Jens Axboe:
"A set of fixes that missed the merge window, mostly due to me being
away around that time.
Nothing major here, a mix of nvme cleanups and fixes, and one fix for
the badblocks handling"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvmet: use symbolic constants for CNS values
nvme: use symbolic constants for CNS values
nvme.h: add an enum for cns values
nvme.h: don't use uuid_be
nvme.h: resync with nvme-cli
nvme: Add tertiary number to NVME_VS
nvme : Add sysfs entry for NVMe CMBs when appropriate
nvme: don't schedule multiple resets
nvme: Delete created IO queues on reset
nvme: Stop probing a removed device
badblocks: fix overlapping check for clearing
- Handle faults generated by the page table walker as being writes
- Map the BSS at EL2
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Merge tag 'kvm-arm-for-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm
KVM/ARM updates for 4.9-rc2
- Handle faults generated by the page table walker as being writes
- Map the BSS at EL2
When used with a compiler that doesn't implement "asm goto"
(such as the AArch64 port of GCC 4.8), jump labels generate a
memory access to find out about the value of the key (instead
of just patching the code). The key itself is likely to be
stored in the BSS.
This is perfectly fine, except that we don't map the BSS at HYP,
leading to an exploding kernel at the first access. The obvious
fix is simply to map the BSS there (which should have been done
a long while ago, but hey...).
Reported-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The WnR bit in the HSR/ESR_EL2 indicates whether a data abort was
generated by a read or a write instruction. For stage 2 data aborts
generated by a stage 1 translation table walk (i.e. the actual page
table access faults at EL2), the WnR bit therefore reports whether the
instruction generating the walk was a load or a store, *not* whether the
page table walker was reading or writing the entry.
For page tables marked as read-only at stage 2 (e.g. due to KSM merging
them with the tables from another guest), this could result in livelock,
where a page table walk generated by a load instruction attempts to
set the access flag in the stage 1 descriptor, but fails to trigger
CoW in the host since only a read fault is reported.
This patch modifies the arm64 kvm_vcpu_dabt_iswrite function to
take into account stage 2 faults in stage 1 walks. Since DBM cannot be
disabled at EL2 for CPUs that implement it, we assume that these faults
are always causes by writes, avoiding the livelock situation at the
expense of occasional, spurious CoWs.
We could, in theory, do a bit better by checking the guest TCR
configuration and inspecting the page table to see why the PTE faulted.
However, I doubt this is measurable in practice, and the threat of
livelock is real.
Cc: <stable@vger.kernel.org>
Cc: Julien Grall <julien.grall@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Merge tag 'drm-fixes-for-v4.9-rc2-part2' of git://people.freedesktop.org/~airlied/linux
Pull more drm fixes from Dave Airlie:
"Mainly some vmwgfx fixes, but also some fixes for armada, etnaviv and
fsl-dcu"
* tag 'drm-fixes-for-v4.9-rc2-part2' of git://people.freedesktop.org/~airlied/linux:
drm/fsl-dcu: enable pixel clock when enabling CRTC
drm/fsl-dcu: do not transfer registers in mode_set_nofb
drm/fsl-dcu: do not transfer registers on plane init
drm/fsl-dcu: enable TCON bypass mode by default
drm/vmwgfx: Adjust checks for null pointers in 13 functions
drm/vmwgfx: Use memdup_user() rather than duplicating its implementation
drm/vmwgfx: Use kmalloc_array() in vmw_surface_define_ioctl()
drm/vmwgfx: Avoid validating views on view destruction
drm/vmwgfx: Limit the user-space command buffer size
drm/vmwgfx: Remove a leftover debug printout
drm/vmwgfx: Allow resource relocations on byte boundaries
drm/vmwgfx: Enable SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command
drm/vmwgfx: Remove call to reservation_object_test_signaled_rcu before wait
drm/vmwgfx: Replace numeric parameter like 0444 with macro
drm/etnaviv: block 64K of address space behind each cmdstream
drm/etnaviv: ensure write caches are flushed at end of user cmdstream
drm/armada: fix clock counts
Although I am leaving Synopsys, I would like to keep working with the linux
kernel community and help in what you might find useful. For that I am
sending this patch to change my contact e-mail.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The TPS65217 driver grew interrupt support which uses
irq_set_parent(). While it's not yet clear why this is used in the first
place, building the driver as a module fails with:
ERROR: ".irq_set_parent" [drivers/mfd/tps65217.ko] undefined!
The correctness of the driver change is still investigated, but for now
it's less trouble to export irq_set_parent() than dealing with the build
wreckage.
[ tglx: Rewrote changelog and made the export GPL ]
Fixes: 6556bdacf6 ("mfd: tps65217: Add support for IRQs")
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Marcin Niestroj <m.niestroj@grinn-global.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Lee Jones <lee.jones@linaro.org>
Link: http://lkml.kernel.org/r/1475775403-27207-1-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The libfc stack assigns exchange IDs based on the CPU the request
was received on, so we need to send the responses via the same CPU.
Otherwise the send logic gets confuses and responses will be delayed,
causing exchange timeouts on the initiator side.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Cc: stable@vger.kernel.org # 4.5+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Update the debug statements to match those from libfc.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Not every failure is due to out-of-memory; the ACLs might not be
set, too. So return a detailed error code in ft_sess_create()
instead of just a NULL pointer.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
