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Meelis and Helge reported that 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
caused HPMCs on A500 and hangs on rp5470.
PA-RISC does not set ARCH_DMA_ADDR_T_64BIT, even for 64-bit kernels, so
prior to 3a9ad0b4fdcd, we always used 32-bit PCI addresses. After
3a9ad0b4fdcd, we do use 64-bit PCI addresses in 64-bit kernels, and
apparently there's some PA-RISC problem related to them.
Fixes: 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
Link: http://lkml.kernel.org/r/[email protected]
Reported-by: Meelis Roos <[email protected]>
Reported-by: Helge Deller <[email protected]>
Tested-by: Helge Deller <[email protected]>
Based-on-idea-by: Yinghai Lu <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Yinghai Lu <[email protected]>
CC: [email protected] # v3.19+
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Commit b253149b843f ("sched/idle/x86: Restore mwait_idle() to fix boot
hangs, to improve power savings and to improve performance") restores
mwait_idle(), but the trace_cpu_idle related calls are missing. This
causes powertop on my old desktop powered by Intel Core2 E6550 to
report zero wakeups and zero events.
Add them back to restore the proper behaviour.
Fixes: b253149b843f ("sched/idle/x86: Restore mwait_idle() to ...")
Signed-off-by: Jisheng Zhang <[email protected]>
Cc: <[email protected]>
Cc: [email protected] # 4.1
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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Pull networking fixes from David Miller:
1) Out of bounds array access in 802.11 minstrel code, from Adrien
Schildknecht.
2) Don't use skb_get() in IGMP/MLD code paths, as this makes
pskb_may_pull() BUG. From Linus Luessing.
3) Fix off by one in ipv4 route dumping code, from Andy Whitcroft.
4) Fix deadlock in reqsk_queue_unlink(), from Eric Dumazet.
5) Fix ppp device deregistration wrt. netns deletion, from Guillaume
Nault.
6) Fix deadlock when creating per-cpu ipv6 routes, from Martin KaFai
Lau.
7) Fix memory leak in batman-adv code, from Sven Eckelmann.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
batman-adv: Fix memory leak on tt add with invalid vlan
net: phy: fix semicolon.cocci warnings
net: qmi_wwan: add HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module
be2net: avoid vxlan offloading on multichannel configs
ipv6: Fix a potential deadlock when creating pcpu rt
ipv6: Add rt6_make_pcpu_route()
ipv6: Remove un-used argument from ip6_dst_alloc()
net: phy: workaround for buggy cable detection by LAN8700 after cable plugging
net: ethernet: micrel: fix an error code
ppp: fix device unregistration upon netns deletion
net: phy: fix PHY_RUNNING in phy_state_machine
Revert "net: limit tcp/udp rmem/wmem to SOCK_{RCV,SND}BUF_MIN"
inet: fix potential deadlock in reqsk_queue_unlink()
gianfar: Restore link state settings after MAC reset
ipv4: off-by-one in continuation handling in /proc/net/route
net: fix wrong skb_get() usage / crash in IGMP/MLD parsing code
mac80211: fix invalid read in minstrel_sort_best_tp_rates()
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen build fix from David Vrabel:
"Fix i386 build with an (uncommon) configuration"
* tag 'for-linus-4.2-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: make CONFIG_XEN depend on CONFIG_X86_LOCAL_APIC
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a small collecton of sound fix patches.
The most significant one is the disablement of newly introduced
topology API. Its ABI couldn't be stabilized enough, so we decided to
delay for 4.3 in the end. Other than that, all oneliner fixes: a
USB-audio runtime PM fix and a couple of HD-audio quirks"
* tag 'sound-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Add dock support for Thinkpad W541 (17aa:2211)
ALSA: usb-audio: Fix runtime PM unbalance
ASoC: topology: Disable use from userspace
ASoC: topology: Add Kconfig option for topology
ALSA: hda - Fix the white noise on Dell laptop
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GPIOF_IN flag was lost in:
Commit 633a21d80b4a("input: gpio_keys_polled: Add support for GPIO
descriptors").
Without this flag, legacy code path (for non-descriptor GPIO declarations)
would configure GPIO as output (0 meaning GPIOF_DIR_OUT | GPIOF_INIT_LOW).
Cc: [email protected]
Signed-off-by: Vincent Pelletier <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
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Pull SCSI target fixes from Nicholas Bellinger:
"This contains a v4.2-rc specific RCU module unload regression bug-fix,
a long-standing iscsi-target bug-fix for duplicate target_xfer_tags
during NOP processing from Alexei, and two more small REPORT_LUNs
emulation related patches to make Solaris FC host LUN scanning happy
from Roland.
There is also one patch not included that allows target-core to limit
the number of fabric driver SGLs per I/O request using residuals, that
is currently required as a work-around for FC hosts which don't honor
EVPD block-limits settings. At this point, it will most likely become
for-next material"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: Fix handling of small allocation lengths in REPORT LUNS
target: REPORT LUNS should return LUN 0 even for dynamic ACLs
target/iscsi: Fix double free of a TUR followed by a solicited NOPOUT
target: Perform RCU callback barrier before backend/fabric unload
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git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal fixes from Eduardo Valentin:
"Last minute fixes on the thermal-soc tree. There is a fix of a long
lasting bug in cpu cooling device, thanks for RMK for being pushing
this"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal/cpu_cooling: update policy limits if clipped_freq < policy->max
thermal/cpu_cooling: rename max_freq as clipped_freq in notifier
thermal/cpu_cooling: rename cpufreq_val as clipped_freq
thermal/cpu_cooling: convert 'switch' block to 'if' block in notifier
thermal/cpu_cooling: quit early after updating policy
thermal/cpu_cooling: No need to initialize max_freq to 0
thermal: cpu_cooling: fix lockdep problems in cpu_cooling
thermal: power_allocator: do not use devm* interfaces
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Commit 6dd747825b20 ("ARM: imx: move timer resources into a structure")
moved initialization parameters into a data structure, but neglected to set
the irq field in that data structure for non-DT boots. This causes the system
to hang if a non-DT boot is attempted.
Fixes: 6dd747825b20 ("ARM: imx: move timer resources into a structure")
Signed-off-by: Guenter Roeck <[email protected]>
Cc: Shawn Guo <[email protected]>
Cc: Daniel Lezcano <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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Since commit feb44f1f7a4ac299d1ab1c3606860e70b9b89d69 (x86/xen:
Provide a "Xen PV" APIC driver to support >255 VCPUs) Xen guests need
a full APIC driver and thus should depend on X86_LOCAL_APIC.
This fixes an i386 build failure with !SMP && !CONFIG_X86_UP_APIC by
disabling Xen support in this configuration.
Users needing Xen support in a non-SMP i386 kernel will need to enable
CONFIG_X86_UP_APIC.
Signed-off-by: David Vrabel <[email protected]>
Cc: <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
- Fix buildid processing done at the end of a 'perf record' session, a
problem that happened in workloads involving lots of small short-lived
processes. That code was not asking the perf_session layer to order
the events.
Make the code more robust to handle some of the problems with such
out-of-order events and fix 'perf record' to ask for ordered events
on systems where we have perf_event_attr.sample_id_all. (Adrian Hunter)
- Show backtrace when handling a SIGSEGV in 'perf top --stdio' (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
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Add a function to find the start of the SADs in the ELD. This
complements the helper to retrieve the SAD count.
[airlied: this fixes a build problem with the alsa eld helper
which required this].
Signed-off-by: Russell King <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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https://github.com/bbrezillon/linux-at91 into drm-fixes
single atmel hlcdc fix.
* 'drm-atmel-hlcdc-fixes' of https://github.com/bbrezillon/linux-at91:
drm/atmel-hlcdc: Compile suspend/resume for PM_SLEEP only
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The TI crossbar irqchip doesn't provides any facility to configure the
wakeup sources, but the conversion to hierarchical irqdomains set the
irq_set_wake callback to irq_chip_set_wake_parent. The parent chip
(OMAP wakeupgen) has no irq_set_wake function either so the call will
fail with -ENOSYS. As a result the irq_set_wake() call in the resume
path will trigger an 'Unbalanced wake disable' warning.
Before the conversion the GIC irqchip was the top level irqchip and
correctly flagged with IRQCHIP_SKIP_SET_WAKE.
Restore the correct behaviour by removing the irq_set_type callback
from the crossbar irqchip and set the IRQCHIP_SKIP_SET_WAKE flag which
lets the irq_set_irq_wake() call from the driver succeed.
[ tglx: Massaged changelog ]
Fixes: 783d31863fb8 ('irqchip: crossbar: Convert dra7 crossbar...')
Signed-off-by: Grygorii Strashko <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: [email protected] # 4.1
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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The ARM GIC requires that all interrupts which are not used as a
wakeup source have to be masked during suspend.
The conversion of the crossbar irqchip to hierarchical irq domains
failed to mark the crossbar irqchip with the IRQCHIP_MASK_ON_SUSPEND
flag and therefor broke the suspend requirement of the GIC.
Before the conversion the flags were visible because the GIC was the
top level irqchip. After the conversion the crossbar irqchip is the
top level irq chip whose flags are evaluated in suspend_device_irq().
As the flag is not set the masking of the non-wakeup irqs is not
invoked which breaks suspend.
Add the IRQCHIP_MASK_ON_SUSPEND flag to the crossbar irqchip, so the
GIC interrupts get masked properly.
[ tglx: Massaged changelog ]
Fixes: 783d31863fb8 ('irqchip: crossbar: Convert dra7 crossbar...')
Signed-off-by: Grygorii Strashko <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: [email protected] # 4.1
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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The conversion of the wakeupgen irqchip to hierarchical irq domains
failed to provide a mechanism to properly set the trigger type of an
interrupt.
The wakeupgen irq chip itself has no mechanism and therefor no
irq_set_type() callback. The code before the conversion relayed the
trigger configuration directly to the underlying GIC.
Restore the correct behaviour by setting the wakeupgen irq_set_type
callback to irq_chip_set_type_parent(). This propagates the
set_trigger() call to the underlying GIC irqchip.
[ tglx: Massaged changelog ]
Fixes: 7136d457f365 ('ARM: omap: convert wakeupgen to stacked domains')
Signed-off-by: Grygorii Strashko <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: [email protected] # 4.1
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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The conversion of the crossbar irqchip to hierarchical irq domains
failed to provide a mechanism to properly set the trigger type of an
interrupt.
The crossbar irq chip itself has no mechanism and therefor no
irq_set_type() callback. The code before the conversion relayed the
trigger configuration directly to the underlying GIC.
Restore the correct behaviour by setting the crossbar irq_set_type
callback to irq_chip_set_type_parent(). This propagates the
set_trigger() call to the underlying GIC irqchip.
[ tglx: Massaged changelog ]
Fixes: 783d31863fb8 ('irqchip: crossbar: Convert dra7 crossbar...')
Signed-off-by: Grygorii Strashko <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: [email protected] # 4.1
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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This helper is required for irq chips which do not implement a
irq_set_type callback and need to call down the irq domain hierarchy
for the actual trigger type change.
This helper is required to fix further wreckage caused by the
conversion of TI OMAP to hierarchical irq domains and therefor tagged
for stable.
[ tglx: Massaged changelog ]
Signed-off-by: Grygorii Strashko <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: [email protected] # 4.1
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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irq_chip_retrigger_hierarchy() returns -ENOSYS if it was not able to
find at least one .irq_retrigger() callback implemented in the IRQ
domain hierarchy.
That's wrong, because check_irq_resend() expects a 0 return value from
the callback in case that the hardware assisted resend was not
possible. If the return value is non zero the core code assumes
hardware resend success and the software resend is not invoked.
This results in lost interrupts on platforms where none of the parent
irq chips in the hierarchy implements the retrigger callback.
This is observable on TI OMAP, where the hierarchy is:
ARM GIC <- OMAP wakeupgen <- TI Crossbar
Return 0 instead so the software resend mechanism gets invoked.
[ tglx: Massaged changelog ]
Fixes: 85f08c17de26 ('genirq: Introduce helper functions...')
Signed-off-by: Grygorii Strashko <[email protected]>
Reviewed-by: Marc Zyngier <[email protected]>
Reviewed-by: Jiang Liu <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: [email protected] # 4.1
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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We should not assume any particular hardware topology. Commit d0751b98dfa3
("PCI: Add dev->has_secondary_link to track downstream PCIe links") relied
on the assumption that every PCIe hierarchy is rooted at a Root Port. But
we can't rely on any assumption about what hardware we will find; we just
have to deal with the world as it is.
On some platforms, PCIe devices (endpoints, switch upstream ports, etc.)
appear directly on the root bus, and there is no Root Port in the PCI bus
hierarchy. For example, Meelis observed these top-level devices on a
Sparc V245:
0000:02:00.0 PCI bridge to [bus 03-0d] Switch Upstream Port
0001:02:00.0 PCI bridge to [bus 03] PCIe to PCI/PCI-X Bridge
These devices *look* like they have links going upstream, but there really
are no upstream devices.
In set_pcie_port_type(), we used the parent device to figure out which side
of a switch port has a link, so if the parent device did not exist, we
dereferenced a NULL parent pointer.
Check whether the parent device exists before dereferencing it.
Meelis observed this oops on Sparc V245 and T2000. Ben Herrenschmidt says
this is also possible on IBM PowerVM guests on PowerPC.
[bhelgaas: changelog, comment]
Link: http://lkml.kernel.org/r/[email protected]
Reported-by: Meelis Roos <[email protected]>
Tested-by: Meelis Roos <[email protected]>
Signed-off-by: Yijing Wang <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: David S. Miller <[email protected]>
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It was just freezing instead of informing about the SEGV, fix it and
also print a backtrace, just like in the TUI mode and in 'perf trace'.
Tested by provoking a NULL deref when pressing 'z':
0.31% libc-2.20.so [.] malloc_consolidate
0.31% ld-2.20.so [.] _dl_relocate_object
0.28% cc1 [.] ht_lookup
0.28% cc1 [.] ira_init_register_move_cost
perf: Segmentation fault
Obtained 7 stack frames.
perf(dump_stack+0x32) [0x4d69f2]
perf(sighandler_dump_stack+0x29) [0x4d6a89]
/lib64/libc.so.6(+0x34960) [0x7f5064333960]
perf() [0x438790]
/lib64/libpthread.so.0(+0x752a) [0x7f50663dd52a]
/lib64/libc.so.6(clone+0x6d) [0x7f50643ff22d]
#
Reported-by: Linus Torvalds <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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After recording, 'perf record' post-processes the data to determine
which buildids are needed.
That processing must process the data in time order, if possible,
because otherwise dependent events, like forks and mmaps, will not make
sense.
Signed-off-by: Adrian Hunter <[email protected]>
Tested-by: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Moved the sample_id_add to after trying to open the events, use pr_warning ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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When processing a fork event, the tools lookup the parent thread by its
tid. In a couple of cases, it is possible for that thread to have the
wrong pid.
That can happen if the data is being processed out of order, or if the
(fork) event that would have removed the erroneous thread was lost.
Assume the latter case, print a dump message, remove the erroneous
thread, create a new one with the correct pid, and keep going.
Reported-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Tested-by: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Attempting to clone map groups onto themselves will deadlock.
It only happens because of other bugs, but the code should protect
itself anyway.
Reported-by: Linus Torvalds <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Tested-by: Jiri Olsa <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Use pr_debug() instead of dump_fprintf() ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Disable topology support for v4.2
The topology code merged in the v4.2 merge window introduced a new ABI
which was believed to be suitable for use but subsequently additional
work by the developers of this feature have revealed some problems that
need to be addressed. In order to allow this to be done without having
to support the initial ABI add Kconfig to disable the build and also add
some #error statements to the UAPI header so users can't use them.
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Signed-off-by: Axel Lin <[email protected]>
Cc: Hauke Mehrtens <[email protected]>
Cc: Rafał Miłecki <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/11020/
Signed-off-by: Ralf Baechle <[email protected]>
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Tested with W541 and Ultra Dock 170w
Signed-off-by: Rick Sherman <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
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The fix for deadlock in PM in commit [1ee23fe07ee8: ALSA: usb-audio:
Fix deadlocks at resuming] introduced a new check of in_pm flag.
However, the brainless patch author evaluated it in a wrong way
(logical AND instead of logical OR), thus usb_autopm_get_interface()
is wrongly called at probing, leading to unbalance of runtime PM
refcount.
This patch fixes it by correcting the logic.
Reported-by: Hans Yang <[email protected]>
Fixes: 1ee23fe07ee8 ('ALSA: usb-audio: Fix deadlocks at resuming')
Cc: <[email protected]> [v3.15+]
Signed-off-by: Takashi Iwai <[email protected]>
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Current code assigns 0 to variable 'err', which makes mantis_dma_init()
to return success even if mantis_alloc_buffers() fails.
Fix it by checking the return value from mantis_alloc_buffers() and
propagating it in the case of error.
Reported-by: RUC_Soft_Sec <[email protected]>
Signed-off-by: Fabio Estevam <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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This reverts commit 9869da5bacc5c9b865a183bd36c04be76cdd325d.
The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.
Signed-off-by: David Härdeman <[email protected]>
Acked-by: Antti Seppälä <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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This reverts commit 1d971d927efa2e10194c96ed0475b6d6054342d8.
The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.
Signed-off-by: David Härdeman <[email protected]>
Acked-by: Antti Seppälä <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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This reverts commit a0466f15b4654cf1ac9e387d7c1a401eff494b4f.
The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.
Signed-off-by: David Härdeman <[email protected]>
Acked-by: Antti Seppälä <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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This reverts commit cf257e288ad3a134d4bb809c542a3ae6c87ddfa3.
The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.
Signed-off-by: David Härdeman <[email protected]>
Acked-by: Antti Seppälä <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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This reverts commit 0d830b2d1295fee82546d57185da5a6604f11ae2.
The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.
Signed-off-by: David Härdeman <[email protected]>
Acked-by: Antti Seppälä <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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This reverts commit 2e4ebde269236da2a41183522127715b6d9d80ce.
The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.
Signed-off-by: David Härdeman <[email protected]>
Acked-by: Antti Seppälä <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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sysfs filter callback"
This reverts commit da7ee60b03bd66bb10974d7444aa444de6391312.
The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.
Signed-off-by: David Härdeman <[email protected]>
Acked-by: Antti Seppälä <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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This patch removes TP3 support on CHV since there is no support
for HBR2 on this platform.
v2: rename the function to indicate it checks source rates (Jani)
v3: update comment to indicate TP3 dependency on HBR2 supported
hardware (Jani)
Cc: [email protected] # v4.1+
Reviewed-by: Ville Syrjälä <[email protected]>
Signed-off-by: Sivakumar Thulasimani <[email protected]>
[Jani: fixed a couple of checkpatch warnings.]
Signed-off-by: Jani Nikula <[email protected]>
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This patch removes 5.4Gbps from supported link rate for CHV since
it is not supported in it.
v2: change the ordering for better readability (Ville)
Cc: [email protected] # v4.1+
Reviewed-by: Ville Syrjälä <[email protected]>
Signed-off-by: Sivakumar Thulasimani <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
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This reverts
commit fe51bfb95c996733150c44d21e1c9f4b6322a326.
Author: Ville Syrjälä <[email protected]>
Date: Thu Mar 12 17:10:38 2015 +0200
CHV does not support intermediate frequencies so reverting the
patch that added it in the first place
Cc: [email protected] # v4.1+
Reviewed-by: Ville Syrjälä <[email protected]>
Signed-off-by: Sivakumar Thulasimani <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
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Signed-off-by: Ingo Molnar <[email protected]>
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This reverts
commit 047fe6e6db9161e69271f56daaafdaf2add023b1
Author: David Weinehall <[email protected]>
Date: Tue Aug 4 16:55:52 2015 +0300
drm/i915: Allow parsing of variable size child device entries from VBT
That commit is not valid for v4.2, however it will be valid for v4.3. It
was simply queued too early.
The referenced regressing commit is just fine until the size of struct
common_child_dev_config changes, and that won't happen until
v4.3. Indeed, the expected size checks here rely on the increased size
of the struct, breaking new platforms.
Fixes: 047fe6e6db91 ("drm/i915: Allow parsing of variable size child device entries from VBT")
Cc: Daniel Vetter <[email protected]>
Cc: David Weinehall <[email protected]>
Cc: Ville Syrjälä <[email protected]>
Reviewed-by: Ville Syrjälä <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
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REPORT LUNS should not fail just because the allocation length is less
than 16. The relevant section of SPC-4 is:
4.2.5.6 Allocation length
The ALLOCATION LENGTH field specifies the maximum number of bytes or
blocks that an application client has allocated in the Data-In
Buffer. The ALLOCATION LENGTH field specifies bytes unless a
different requirement is stated in the command definition.
An allocation length of zero specifies that no data shall be
transferred. This condition shall not be considered an error.
So we should just truncate our response rather than return an error.
Signed-off-by: Roland Dreier <[email protected]>
Signed-off-by: Spencer Baugh <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]>
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The object tt_local is allocated with kmalloc and not initialized when the
function batadv_tt_local_add checks for the vlan. But this function can
only cleanup the object when the (not yet initialized) reference counter of
the object is 1. This is unlikely and thus the object would leak when the
vlan could not be found.
Instead the uninitialized object tt_local has to be freed manually and the
pointer has to set to NULL to avoid calling the function which would try to
decrement the reference counter of the not existing object.
CID: 1316518
Fixes: 354136bcc3c4 ("batman-adv: fix kernel crash due to missing NULL checks")
Signed-off-by: Sven Eckelmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fix from Vinod Koul:
"We recently found issue with dma_request_slave_channel() API causing
privatecnt value to go bad. This is fixed by balancing the privatecnt"
* tag 'dmaengine-fix-4.2-rc8' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: fix balance of privatecnt inc/dec operations
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Since the topology API is still in sufficient flux for changes to be
identified disable the use of the userspace ABI by adding #error
statements to the code, ensuring that nobody relies on the headers as
currently defined. It is expected that this change will be reverted for
v4.3.
Signed-off-by: Mark Brown <[email protected]>
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Alex Deucher, Mark Rustad and Alexander Holler reported a regression
with the latest v4.2-rc4 kernel, which breaks some SATA controllers.
With multi-MSI capable SATA controllers, only the first port works,
all other ports time out when executing SATA commands.
This happens because the first argument to assign_irq_vector_policy()
is always the base linux irq number of the multi MSI interrupt block,
so all subsequent vector assignments operate on the base linux irq
number, so all MSI irqs are handled as the first irq number. Therefor
the other MSI irqs of a device are never set up correctly and never
fire.
Add the loop iterator to the base irq number so all vectors are
assigned correctly.
Fixes: b5dc8e6c21e7 "x86/irq: Use hierarchical irqdomain to manage CPU interrupt vectors"
Reported-and-tested-by: Alex Deucher <[email protected]>
Reported-and-tested-by: Mark Rustad <[email protected]>
Reported-and-tested-by: Alexander Holler <[email protected]>
Signed-off-by: Jiang Liu <[email protected]>
Cc: Tony Luck <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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The routines in scsi_rpm.c assume that if a runtime-PM callback is
invoked for a SCSI device, it can only mean that the device's driver
has asked the block layer to handle the runtime power management (by
calling blk_pm_runtime_init(), which among other things sets q->dev).
However, this assumption turns out to be wrong for things like the ses
driver. Normally ses devices are not allowed to do runtime PM, but
userspace can override this setting. If this happens, the kernel gets
a NULL pointer dereference when blk_post_runtime_resume() tries to use
the uninitialized q->dev pointer.
This patch fixes the problem by calling the block layer's runtime-PM
routines only if the device's driver really does have a runtime-PM
callback routine. Since ses doesn't define any such callbacks, the
crash won't occur.
This fixes Bugzilla #101371.
Signed-off-by: Alan Stern <[email protected]>
Reported-by: Stanisław Pitucha <[email protected]>
Reported-by: Ilan Cohen <[email protected]>
Tested-by: Ilan Cohen <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Cc: [email protected]
Signed-off-by: James Bottomley <[email protected]>
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fnic_queuecommand() to avoid deadloack
We added changes in fnic driver patch 1.6.0.16 to acquire
io_req_lock in fnic_queuecommand() before issuing I/O so that io completion
is serialized. But when releasing the lock we check for the I/O flag and
this could be modified if IO abort occurs before I/O completion. In this case
we wont release the lock and causes deadlock in some scenerios. Using the
local variable to check the IO lock status will resolve the problem.
Fixes: 41df7b02db82cf6c14f094757bac3830d10a827f
Signed-off-by: Hiral Shah <[email protected]>
Signed-off-by: Sesidhar Baddela <[email protected]>
Signed-off-by: Anil Chintalapati <[email protected]>
Reviewed-by: Martin K. Petersen <[email protected]>
Cc: [email protected]
Signed-off-by: James Bottomley <[email protected]>
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Pull drm fixes from Dave Airlie:
"These came in late last week, I wanted to look over the mst one before
forwarding, but it seems good.
Just three i915 and one MST fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Commit planes on each crtc separately.
drm/i915: calculate primary visibility changes instead of calling from set_config
drm/i915: Only dither on 6bpc panels
drm/dp/mst: Remove port after removing connector.
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lock_timer_base() cannot prevent the following :
CPU1 ( in __mod_timer()
timer->flags |= TIMER_MIGRATING;
spin_unlock(&base->lock);
base = new_base;
spin_lock(&base->lock);
// The next line clears TIMER_MIGRATING
timer->flags &= ~TIMER_BASEMASK;
CPU2 (in lock_timer_base())
see timer base is cpu0 base
spin_lock_irqsave(&base->lock, *flags);
if (timer->flags == tf)
return base; // oops, wrong base
timer->flags |= base->cpu // too late
We must write timer->flags in one go, otherwise we can fool other cpus.
Fixes: bc7a34b8b9eb ("timer: Reduce timer migration overhead if disabled")
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Jon Christopherson <[email protected]>
Cc: David Miller <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Sander Eikelenboom <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Thomas Gleixner <[email protected]>
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