Now, the memory allocation in prepare/commit state is done separatelly
in each driver (rocker). Introduce the similar mechanism in generic
switchdev code, in form of queue. That can be used not only for memory
allocations, but also for different items. Abort item destruction
is handled as well.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is temporary, name "trans" will be used for something else and
"trans_ph" will eventually disappear.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull thermal management fixes from Zhang Rui:
- Power allocator governor changes to allow binding on thermal zones
with missing power estimates information. From Javi Merino.
- Add compile test flags on thermal drivers that allow it without
producing compilation errors. From Eduardo Valentin.
- Fixes around memory allocation on cpu_cooling. From Javi Merino.
- Fix on db8500 cpufreq code to allow autoload. From Luis de
Bethencourt.
- Maintainer entries for cpu cooling device
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: power_allocator: exit early if there are no cooling devices
thermal: power_allocator: don't require tzp to be present for the thermal zone
thermal: power_allocator: relax the requirement of two passive trip points
thermal: power_allocator: relax the requirement of a sustainable_power in tzp
thermal: Add a function to get the minimum power
thermal: cpu_cooling: free power table on error or when unregistering
thermal: cpu_cooling: don't call kcalloc() under rcu_read_lock
thermal: db8500_cpufreq_cooling: Fix module autoload for OF platform driver
thermal: cpu_cooling: Add MAINTAINERS entry
thermal: ti-soc: Kconfig fix to avoid menu showing wrongly
thermal: ti-soc: allow compile test
thermal: qcom_spmi: allow compile test
thermal: exynos: allow compile test
thermal: armada: allow compile test
thermal: dove: allow compile test
thermal: kirkwood: allow compile test
thermal: rockchip: allow compile test
thermal: spear: allow compile test
thermal: hisi: allow compile test
thermal: Fix thermal_zone_of_sensor_register to match documentation
Sometimes it is useful to be able to extract an index of certain string
value from an array of strings. A typical use case is to give a name to a
DMA channel, PWM, clock and so on.
Provide an implementation using unified device property accessors that
follows of_property_match_string() but works for all supported fwnodes.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Simon Horman says:
====================
Second Round of IPVS Updates for v4.4
please consider these bug fixes and extensive clean-ups of IPVS
from Eric Biederman for v4.4.
His excellent description of the changes, which is part of an even larger
set of clean-up work, is as follows:
I am gradually working my way through the netfilter stack passing struct
down into the netfilter hooks and from the netfilter hooks and from there
down into the functions that actually care. This removes the need for
netfilter functions to guess how to figure out how to compute which
network namespace they are in and instead provides a simple and reliable
method to do so.
The cleanups stand on their own but this is part of a larger effort to
have routes with an output device that is not in the current network
namespace.
The IPVS code has been a bit more of a challenge than most. Just passing
struct net through to where it is needed did not feel clean to me. The
practical issue is that the ipvs code in most places actually wants
struct netns_ipvs and not struct net.
So as part of this process I have turned the relationship between struct
net and the structs netns_ipvs, ip_vs_conn_param, ip_vs_conn, and
ip_vs_service inside out. I have modified the ipvs functions to take a
struct netns_ipvs not a struct net. The net is code with fewer
conversions from one type of structure to another. I did wind up adding
a struct netns_ipvs parameter to quite a few functions that did not have
it before so I could pass the structure down from the netfilter hooks to
where it is actually needed to avoid guessing.
I have broken up the work in a bunch of small patches so there is at
least a chance and reviewing that each step I took is correct. The
series compiles at each step so bisecting it should not be a problem if
something weird comes up.
The first two changes in this series are actually bug fixes. The first
is a compile fix for a bug in sctp that came in, in the last round of
ipvs changes merged into nf-next. The second fixes an older bug where in
pathological circumstances the wrong network namespace could be used when
a proc file is written to.
The rest of the patchset is a bunch of boring changes getting pushing
struct netns_ipvs (and by extension ipvs->net) where it needs to be.
Either by replacing struct net pointers or adding new struct netns_ipvs
pointers. With a handful of other minor cleanups (like removing
skb_net).
I have decided include the bug fixes in this pull request. Patch one
relates to a bug that was added to nf-next recently and is thus not
applicable to nf . Patch two could arguably be promoted to a fix for v4.3
and stable though it does not appear to be severe enough to warrant that
course of action; let me know if you would like me to reconsider.
====================
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Merge misc fixes from Andrew Morton:
"15 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
ocfs2/dlm: fix deadlock when dispatch assert master
membarrier: clean up selftest
vmscan: fix sane_reclaim helper for legacy memcg
lib/iommu-common.c: do not try to deref a null iommu->lazy_flush() pointer when n < pool->hint
x86, efi, kasan: #undef memset/memcpy/memmove per arch
mm: migrate: hugetlb: putback destination hugepage to active list
mm, dax: VMA with vm_ops->pfn_mkwrite wants to be write-notified
userfaultfd: register uapi generic syscall (aarch64)
userfaultfd: selftest: don't error out if pthread_mutex_t isn't identical
userfaultfd: selftest: return an error if BOUNCE_VERIFY fails
userfaultfd: selftest: avoid my_bcmp false positives with powerpc
userfaultfd: selftest: only warn if __NR_userfaultfd is undefined
userfaultfd: selftest: headers fixup
userfaultfd: selftests: vm: pick up sanitized kernel headers
userfaultfd: revert "userfaultfd: waitqueue: add nr wake parameter to __wake_up_locked_key"
The UDP tunnel config is asymmetric wrt. to the ports used. The source and
destination ports from one direction of the tunnel are not related to the
ports of the other direction. We need to be able to respond to ARP requests
using the correct ports without involving routing.
As the consequence, UDP ports need to be fixed property of the tunnel
interface and cannot be set per route. Remove the ability to set ports per
route. This is still okay to do, as no kernel has been released with these
attributes yet.
Note that the ability to specify source and destination ports is preserved
for other users of the lwtunnel API which don't use routes for tunnel key
specification (like openvswitch).
If in the future we rework ARP handling to allow port specification, the
attributes can be added back.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
When using ip lwtunnels, the additional data for xmit (basically, the actual
tunnel to use) are carried in ip_tunnel_info either in dst->lwtstate or in
metadata dst. When replying to ARP requests, we need to send the reply to
the same tunnel the request came from. This means we need to construct
proper metadata dst for ARP replies.
We could perform another route lookup to get a dst entry with the correct
lwtstate. However, this won't always ensure that the outgoing tunnel is the
same as the incoming one, and it won't work anyway for IPv4 duplicate
address detection.
The only thing to do is to "reverse" the ip_tunnel_info.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
VXLAN device can receive skb with checksum partial. But the checksum
offset could be in outer header which is pulled on receive. This results
in negative checksum offset for the skb. Such skb can cause the assert
failure in skb_checksum_help(). Following patch fixes the bug by setting
checksum-none while pulling outer header.
Following is the kernel panic msg from old kernel hitting the bug.
------------[ cut here ]------------
kernel BUG at net/core/dev.c:1906!
RIP: 0010:[<ffffffff81518034>] skb_checksum_help+0x144/0x150
Call Trace:
<IRQ>
[<ffffffffa0164c28>] queue_userspace_packet+0x408/0x470 [openvswitch]
[<ffffffffa016614d>] ovs_dp_upcall+0x5d/0x60 [openvswitch]
[<ffffffffa0166236>] ovs_dp_process_packet_with_key+0xe6/0x100 [openvswitch]
[<ffffffffa016629b>] ovs_dp_process_received_packet+0x4b/0x80 [openvswitch]
[<ffffffffa016c51a>] ovs_vport_receive+0x2a/0x30 [openvswitch]
[<ffffffffa0171383>] vxlan_rcv+0x53/0x60 [openvswitch]
[<ffffffffa01734cb>] vxlan_udp_encap_recv+0x8b/0xf0 [openvswitch]
[<ffffffff8157addc>] udp_queue_rcv_skb+0x2dc/0x3b0
[<ffffffff8157b56f>] __udp4_lib_rcv+0x1cf/0x6c0
[<ffffffff8157ba7a>] udp_rcv+0x1a/0x20
[<ffffffff8154fdbd>] ip_local_deliver_finish+0xdd/0x280
[<ffffffff81550128>] ip_local_deliver+0x88/0x90
[<ffffffff8154fa7d>] ip_rcv_finish+0x10d/0x370
[<ffffffff81550365>] ip_rcv+0x235/0x300
[<ffffffff8151ba1d>] __netif_receive_skb+0x55d/0x620
[<ffffffff8151c360>] netif_receive_skb+0x80/0x90
[<ffffffff81459935>] virtnet_poll+0x555/0x6f0
[<ffffffff8151cd04>] net_rx_action+0x134/0x290
[<ffffffff810683d8>] __do_softirq+0xa8/0x210
[<ffffffff8162fe6c>] call_softirq+0x1c/0x30
[<ffffffff810161a5>] do_softirq+0x65/0xa0
[<ffffffff810687be>] irq_exit+0x8e/0xb0
[<ffffffff81630733>] do_IRQ+0x63/0xe0
[<ffffffff81625f2e>] common_interrupt+0x6e/0x6e
Reported-by: Anupam Chanda <achanda@vmware.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull to receive 9badce000e ("cgroup, writeback: don't enable cgroup
writeback on traditional hierarchies"). The commit adds
cgroup_on_dfl() usages in include/linux/backing-dev.h thus causing a
silent conflict with 9e10a130d9 ("cgroup: replace cgroup_on_dfl()
tests in controllers with cgroup_subsys_on_dfl()"). The conflict is
fixed during this merge.
Signed-off-by: Tejun Heo <tj@kernel.org>
inode_cgwb_enabled() gates cgroup writeback support. If it returns
true, each inode is attached to the corresponding memory domain which
gets mapped to io domain. It currently only tests whether the
filesystem and bdi support cgroup writeback; however, cgroup writeback
support doesn't work on traditional hierarchies and thus it should
also test whether memcg and iocg are on the default hierarchy.
This caused traditional hierarchy setups to hit the cgroup writeback
path inadvertently and ended up creating separate writeback domains
for each memcg and mapping them all to the root iocg uncovering a
couple issues in the cgroup writeback path.
cgroup writeback was never meant to be enabled on traditional
hierarchies. Make inode_cgwb_enabled() test whether both memcg and
iocg are on the default hierarchy.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Artem Bityutskiy <dedekind1@gmail.com>
Reported-by: Dexuan Cui <decui@microsoft.com>
Link: http://lkml.kernel.org/g/1443012552.19983.209.camel@gmail.com
Link: http://lkml.kernel.org/g/f30d4a6aa8a546ff88f73021d026a453@SIXPR30MB031.064d.mgd.msft.net
Since commit 12fd84f438 ("ipv6: Remove unused neigh argument for
icmp6_dst_alloc() and its callers."), the neigh parameter of ndisc_send_na
and ndisc_send_ns is unused.
CC: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The genl_notify function has too many arguments for no real reason - all
callers use genl_info to get them anyway. Just pass the genl_info down to
genl_notify.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch removes some unnecessary includes from ieee802154 header,
which was introduced by commit b609fb54adfa ("ieee802154: add helpers for
frame control checks").
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
A disappointingly large collection of fixes for SPI issues, though
almost all in drivers (and there mainly the newly added Mediatek
driver) and the core fixes are documentation and error handling. The
driver fixes are all of the usual important if you see them variety.
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Merge tag 'spi-fix-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A disappointingly large collection of fixes for SPI issues, though
almost all in drivers (and there mainly the newly added Mediatek
driver) and the core fixes are documentation and error handling.
The driver fixes are all of the usual 'important if you see them'
variety"
* tag 'spi-fix-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: xtensa-xtfpga: fix register endianness
spi: meson: Fix module autoload for OF platform driver
spi: mediatek: fix wrong error return value on probe
spi: fix kernel-doc warnings in spi.h
spi: spidev: fix possible NULL dereference
spi: atmel: remove warning when !CONFIG_PM_SLEEP
spi: bcm2835: BUG: fix wrong use of PAGE_MASK
spi: mediatek: fix spi cs polarity error
spi: Fix documentation of spi_alloc_master()
spi: spi-pxa2xx: Check status register to determine if SSSR_TINT is disabled
spi: Mediatek: Document devicetree bindings update for spi bus
spi: mediatek: fix spi clock usage error
spi: mediatek: remove clk_disable_unprepare()
This function is the KMS native variant of drm_vblank_count_and_time().
It takes a struct drm_crtc * instead of a struct drm_device * and an
index of the CRTC.
Eventually the goal is to access vblank data through the CRTC only so
that the per-CRTC data can be moved to struct drm_crtc.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The active attribute in struct vga_switcheroo_client denotes whether
the outputs are currently switched to this client. The attribute is
only meaningful for vga clients. It is never used for audio clients.
The function vga_switcheroo_register_audio_client() misuses this
attribute to store whether the audio device is fully initialized.
Most likely there was a misunderstanding about the meaning of
"active" when this was added.
Comment from Takashi's review:
"Not really. The full initialization of audio was meant that the audio
is active indeed. Admittedly, though, the active flag for each audio
client doesn't play any role because the audio always follows the gfx
state changes, and the value passed there doesn't reflect the actual
state due to the later change. So, I agree with the removal of the
flag itself -- or let the audio active flag following the
corresponding gfx flag. The latter will make the proc output more
consistent while the former is certainly more reduction of code."
Set the active attribute to false for audio clients. Remove the
active parameter from vga_switcheroo_register_audio_client() and
its sole caller, hda_intel.c:register_vga_switcheroo().
vga_switcheroo_register_audio_client() was introduced by 3e9e63dbd3
("vga_switcheroo: Add the support for audio clients"). Its use in
hda_intel.c was introduced by a82d51ed24 ("ALSA: hda - Support
VGA-switcheroo").
v1.1: The changes above imply that in find_active_client() the call
to client_is_vga() is now superfluous. Drop it.
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
[danvet: Add Takashi's clarification to the commit message.]
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
pixeldur_ns is now unsued, so kill it from drm_vblank_crtc. framedur_ns
is also currently unused but we will have use for it in the near future
so leave it be. linedur_ns is still used by nouveau for some internal
delays.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
linedur_ns, and especially pixeldur_ns are becoming rather inaccurate
to be used for the vblank timestamp correction. With 4k@60 the pixel
duration is already below 2ns, so the amount of error due to the
truncation to nanoseconds is introducing quite a bit of error.
We can avoid such problems if we instead calculate the timestamp
delta_ns directly from the dislay timings, avoiding the use of
these intermediate truncated values.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
[danvet: Squash in fixup from Thierry Reding for amdgpu.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Collect the timestamping constants alongside the rest of the relevant
stuff under drm_vblank_crtc.
We can now get rid of the 'refcrtc' parameter to
drm_calc_vbltimestamp_from_scanoutpos().
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Fix the following 'make htmldocs' warning:
.//include/drm/drm_crtc.h:929: warning: Excess struct/union/enum/typedef member 'base' description in 'drm_bridge'
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Currently everyone and their dog has their own favourite spelling
for vga_switcheroo. This makes it hard to grep dmesg for log entries
relating to vga_switcheroo. It also makes it hard to find related
source files in the tree.
vga_switcheroo.c uses pr_fmt "vga_switcheroo". Use that everywhere.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This refactors the changes to the GPIO line naming mechanism to
not have so widespread effects, instead we conclude the patch series
by having created a name attribute in the GPIO descriptor, that need
not be globally unique, and it will be initialized from the old
.names array in struct gpio_chip if it exists, then used in the legacy
sysfs code like the array was used previously.
The associated changes to name lines from the device tree are
controversial and need to stand alone from this. Resulting changes:
1. Remove the export and the header for the gpio_name_to_desc() as so
far the only use is inside gpiolib.c. Staticize gpio_name_to_desc()
and move it above the only function using it.
2. Only print a warning if there are two GPIO lines with the same name.
The reason is to preserve current behaviour: before the previous
changes to the naming mechanism this would not reject probing the
driver, instead the error would occur when trying to export the line
in sysfs, so restore this behaviour, but print a friendly warning
if names collide.
Cc: Johan Hovold <johan@kernel.org>
Cc: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest gpio hogging mechanism assigns each gpio a 'line-name' in the
devicetree. The 'name' field is different from the 'label' field.
'label' is only used for requested GPIOs to describe its current use by
driver or userspace.
The 'name' field describes the GPIO itself, not the use. This is most
likely identical to the label in the schematic on the GPIO line and
should help to find this particular GPIO.
This is equivalent to the gpiochip->names array. However names should be
stored in the GPIO descriptor. We will use gpiochip->names in the future
only as initializer for the GPIO descriptors for drivers that assign
GPIO names hardcoded. All other GPIO names will be parsed from DT and
directly assigned to the GPIO descriptor.
This patch adds a helper function to find gpio descriptors by name
instead of gpio number.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add REGMAP_IRQ_REG macro in regmap.h to define regmap_irq
structure easily for other driver module.
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Merge tag 'v4.3-rc2' into topic/drm-misc
Backmerge Linux 4.3-rc2 because of conflicts in the dp helper code
between bugfixes and new code. Just adjacent lines really.
On top of that there's a silent conflict in the new fsl-dcu driver
merged into 4.3 and
commit 844f9111f6
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Wed Sep 2 10:42:40 2015 +0200
drm/atomic: Make prepare_fb/cleanup_fb only take state, v3.
which Thierry Reding spotted and provided a fixup for.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
This function adds no real value and it obscures what the code is doing.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
This hack has no more users so remove it.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
The argument is unnecessary and in practice confusing,
and has caused the callers to do all manner of silly things.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
With sysctl_cache_bypass now a compile time constant the compiler can
figue out that it can elimiate all of the code that depends on
sysctl_cache_bypass being true.
Also remove the duplicate computation of net previously necessitated
by #ifdef CONFIG_SYSCTL
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
This moves the hack "net_ipvs(skb_net(skb))" up one level where it
will be easier to remove.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Move the hack of relying on "net_ipvs(skb_net(skb))" to derive the
ipvs up a layer.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Stop relying on "net_ipvs(skb_net(skb))" to derive the ipvs as
skb_net is a hack.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Also move the tests for net_ipvs being NULL into __ip_vs_ftp_init
and __ip_vs_ftp_exit. The only places where they possibly make
sense.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
