Some of the APIC incarnations are operating in lowest priority delivery
mode. This worked as long as the vector management code allocated the same
vector on all possible CPUs for each interrupt.
Lowest priority delivery mode does not necessarily respect the affinity
setting and may redirect to some other online CPU. This was documented
somewhere in the old code and the conversion to single target delivery
missed to update the delivery mode of the affected APIC drivers which
results in spurious interrupts on some of the affected CPU/Chipset
combinations.
Switch the APIC drivers over to Fixed delivery mode and remove all
leftovers of lowest priority delivery mode.
Switching to Fixed delivery mode is not a problem on these CPUs because the
kernel already uses Fixed delivery mode for IPIs. The reason for this is
that th SDM explicitely forbids lowest prio mode for IPIs. The reason is
obvious: If the irq routing does not honor destination targets in lowest
prio mode then an IPI targeted at CPU1 might end up on CPU0, which would be
a fatal problem in many cases.
As a consequence of this change, the apic::irq_delivery_mode field is now
pointless, but this needs to be cleaned up in a separate patch.
Fixes: fdba46ffb4 ("x86/apic: Get rid of multi CPU affinity")
Reported-by: vcaputo@pengaru.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: vcaputo@pengaru.com
Cc: Pavel Machek <pavel@ucw.cz>
Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1712281140440.1688@nanos
Instead of using strncpy(), use strlcpy(), in order to
ensure that a \0 char will be added at the end of the
string.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Now that kernel-doc handles nested unions, better document the
match union at struct v4l2_async_subdev.
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The V4L2_ASYNC_MATCH_FWNODE match criteria requires just one
struct to be filled (struct fwnode_handle). The V4L2_ASYNC_MATCH_DEVNAME
match criteria requires just a device name.
So, it doesn't make sense to enclose those into structs,
as the criteria can go directly into the union.
That makes easier to document it, as we don't need to document
weird senseless structs.
At drivers, this makes even clearer about the match criteria.
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Hyun Kwon <hyun.kwon@xilinx.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several macros that aren't documented using kernel-docs
markups.
Document them.
While here, add cross-references to structs on this file.
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Remove the V4L2 AS3645A sub-device driver in favour of the LED flash class
driver for the same hardware, drivers/leds/leds-as3645a.c. The latter uses
the V4L2 flash LED class framework to provide V4L2 sub-device interface.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
MRD7 board has in particular
Base Board Information
Manufacturer: Intel Corp.
Product Name: TABLET
Version: MRD 7
Fix the DMI matching entry for it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The traditional pattern is to use DMI matching table and provide a
corresponding driver_data in it.
Convert driver to use DMI matching table.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There is no need to export function which is only used once in
the same module where it's defined.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There is no need to keep a reference to PCI root bridge.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
In a preparation of split PCI glue driver from core part, convert
the driver to use more generic struct device_driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Since all drivers are solely requiring ACPI enumeration, there is no
need to additionally check for legacy platform data or ACPI handle.
Remove leftovers from the sensors and platform code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Custom video format 'M101' is not supported in upstream and as a result
user will get ugly warning:
Unknown pixelformat 0x3130314d
------------[ cut here ]------------
WARNING: CPU: 3 PID: 1574 at drivers/media/v4l2-core/v4l2-ioctl.c:1291 v4l_enum_fmt+0xcf1/0x13a0 [videodev]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Driver fails to initialize due to insane settings in the
control init array.
Fix this by moving to sanity.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
GPIO framework checks for NULL pointer when gpiod_set_value() is called.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
In case devm_clk_get() call fails the previously requested GPIOs are
left requested.
Fix this by moving GPIO request code after devm_clk_get() call.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Fixed sparse warning by making 'dtrace_dot' function static.
Signed-off-by: Sergiy Redko <sergredko@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Fix "Comparisons should place the constant on the right side of the
test" checkpatch issue.
Signed-off-by: Riccardo Schirone <sirmy15@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
- Fix "Block comments use a trailing */ on a separate line" checkpatch
issue
- Fix "Block comments use * on subsequent lines" checkpatch issue
Signed-off-by: Riccardo Schirone <sirmy15@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Fix "Missing a blank line after declarations" warning reported by
checkpatch.
Signed-off-by: Riccardo Schirone <sirmy15@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function. Since ISP always
uses domain 0, hard-code it in the code when calling the replacement
function pci_get_domain_bus_and_slot().
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
timespec overflows in 2038 on 32-bit architectures, and the
getnstimeofday() suffers from possible time jumps, so the
timestamps here are better done using ktime_get(), which has
neither of those problems.
In case of ov2680, we don't seem to use the timestamp at
all, so I just remove it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Defined some const arrays as static since they don't need external linkage.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The "address" member of struct ia_css_host_data is a pointer-to-char,
so define default as NULL.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Pull networking fixes from David Miller:
1) IPv6 gre tunnels end up with different default features enabled
depending upon whether netlink or ioctls are used to bring them up.
Fix from Alexey Kodanev.
2) Fix read past end of user control message in RDS< from Avinash
Repaka.
3) Missing RCU barrier in mini qdisc code, from Cong Wang.
4) Missing policy put when reusing per-cpu route entries, from Florian
Westphal.
5) Handle nested PCI errors properly in bnx2x driver, from Guilherme G.
Piccoli.
6) Run nested transport mode IPSEC packets via tasklet, from Herbert
Xu.
7) Fix handling poll() for stream sockets in tipc, from Parthasarathy
Bhuvaragan.
8) Fix two stack-out-of-bounds issues in IPSEC, from Steffen Klassert.
9) Another zerocopy ubuf handling fix, from Willem de Bruijn.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
strparser: Call sock_owned_by_user_nocheck
sock: Add sock_owned_by_user_nocheck
skbuff: in skb_copy_ubufs unclone before releasing zerocopy
tipc: fix hanging poll() for stream sockets
sctp: Replace use of sockets_allocated with specified macro.
bnx2x: Improve reliability in case of nested PCI errors
tg3: Enable PHY reset in MTU change path for 5720
tg3: Add workaround to restrict 5762 MRRS to 2048
tg3: Update copyright
net: fec: unmap the xmit buffer that are not transferred by DMA
tipc: fix tipc_mon_delete() oops in tipc_enable_bearer() error path
tipc: error path leak fixes in tipc_enable_bearer()
RDS: Check cmsg_len before dereferencing CMSG_DATA
tcp: Avoid preprocessor directives in tracepoint macro args
tipc: fix memory leak of group member when peer node is lost
net: sched: fix possible null pointer deref in tcf_block_put
tipc: base group replicast ack counter on number of actual receivers
net_sched: fix a missing rcu barrier in mini_qdisc_pair_swap()
net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
ip6_gre: fix device features for ioctl setup
...
-----BEGIN PGP SIGNATURE-----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=uS+n
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-for-v4.15-rc6' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"nouveau and i915 regression fixes"
* tag 'drm-fixes-for-v4.15-rc6' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau: fix race when adding delayed work items
i915: Reject CCS modifiers for pipe C on Geminilake
drm/i915/gvt: Fix pipe A enable as default for vgpu
PM API that may schedule from somewhere that we can't do that. We
change to the async version of pm_runtime_put() to fix it.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQIcBAABCAAGBQJaRXo1AAoJEK0CiJfG5JUlTooP/jOuAt/qy2USUbzreVngKMcS
GKU0/yJVigLBGrslZnofgQlN9QwM/CWD1fUHokUsp7aBOlgLsG4C3gr+Sidrnwq+
XxjwZ0LWk4z+2s8p5BJ1PEEeO3HQDtxqnQVlw2P9ZsBzUCLWF5dF3mY0CCHlJ5tD
25lQFx4lb+j29gh9gn4abGtJ5D/ZPAreRKqDVl3QYN7+AJCPecM67B1Hb2AivQrm
v1pBBF0rZZokDjp96A12LSsy7Oq7IcbuXKcEcX0VfgLoWB9bHaAHpI+7XzKsVlHB
TdrfFfX7Eh8rDSbHmJXeJU6YP8TsdCCfUItkyznVzYt3FUo3PPQBGYUVHSUKR/Qc
NY7gK/Uq/o4/NrD35zd+Q9I6FBnfuSN/ToJh3D8IJUyx11Dz23AFw0iz2INuwMsN
WZRz4jld8p+KI51QPGwwOpqYmPEb9GWHVWdfNXcHhkYNOaE7yutLeDCagQZBRKn0
1ej7gPJVSqfs1RsFetWtxLUtbZc34rIaDdhqDglMhOUwucNq22pH7f+5V0hpnKTz
iECLiNNubW4Q9E6aQYk+2v0QtrVWH+rn2FodR9Njv++ZDSqoQDaquQco84p0xi/H
VI5pMo5ynlEZxwQdcvXtj3Ee8vtirURbl0lnyySZptKTEObe02QK2fOsRHwrO7Tn
W2kllbEkg4+7RSMljxmF
=cUDR
-----END PGP SIGNATURE-----
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One more fix for the runtime PM clk patches. We're calling a runtime
PM API that may schedule from somewhere that we can't do that. We
change to the async version of pm_runtime_put() to fix it"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: use atomic runtime pm api in clk_core_is_enabled
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=1acw
-----END PGP SIGNATURE-----
Merge tag 'led_fixes_for_4.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED fix from Jacek Anaszewski:
"A single LED fix for brightness setting when delay_off is 0"
* tag 'led_fixes_for_4.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
led: core: Fix brightness setting when setting delay_off=0
- cxgb4 fix for an iser testing failure as debugged by Steve and Sagi.
The problem was a driver bug in the handling of shutting down a QP.
- Various vmw_pvrdma fixes for bogus WARN_ON, missed resource free on error
unwind and a use after free bug
- Improper congestion counter values on mlx5 when link aggregation is enabled
- ipoib lockdep regression introduced in this merge window
- hfi1 regression supporting the device in a VM introduced in a recent patch
- Typo that breaks future uAPI compatibility in the verbs core
- More SELinux related oops fixing
- Fix an oops during error unwind in mlx5
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=IkGi
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"This is the next batch of for-rc patches from RDMA. It includes the
fix for the ipoib regression I mentioned last time, and the result of
a fairly major debugging effort to get iser working reliably on cxgb4
hardware - it turns out the cxgb4 driver was not handling QP error
flushing properly causing iser to fail.
- cxgb4 fix for an iser testing failure as debugged by Steve and
Sagi. The problem was a driver bug in the handling of shutting down
a QP.
- Various vmw_pvrdma fixes for bogus WARN_ON, missed resource free on
error unwind and a use after free bug
- Improper congestion counter values on mlx5 when link aggregation is
enabled
- ipoib lockdep regression introduced in this merge window
- hfi1 regression supporting the device in a VM introduced in a
recent patch
- Typo that breaks future uAPI compatibility in the verbs core
- More SELinux related oops fixing
- Fix an oops during error unwind in mlx5"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
IB/mlx5: Fix mlx5_ib_alloc_mr error flow
IB/core: Verify that QP is security enabled in create and destroy
IB/uverbs: Fix command checking as part of ib_uverbs_ex_modify_qp()
IB/mlx5: Serialize access to the VMA list
IB/hfi: Only read capability registers if the capability exists
IB/ipoib: Fix lockdep issue found on ipoib_ib_dev_heavy_flush
IB/mlx5: Fix congestion counters in LAG mode
RDMA/vmw_pvrdma: Avoid use after free due to QP/CQ/SRQ destroy
RDMA/vmw_pvrdma: Use refcount_dec_and_test to avoid warning
RDMA/vmw_pvrdma: Call ib_umem_release on destroy QP path
iw_cxgb4: when flushing, complete all wrs in a chain
iw_cxgb4: reflect the original WR opcode in drain cqes
iw_cxgb4: Only validate the MSN for successful completions
Tom Herbert says:
====================
strparser: Fix lockdep issue
When sock_owned_by_user returns true in strparser. Fix is to add and
call sock_owned_by_user_nocheck since the check for owned by user is
not an error condition in this case.
====================
Fixes: 43a0c6751a ("strparser: Stream parser for messages")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-and-tested-by: <syzbot+c91c53af67f9ebe599a337d2e70950366153b295@syzkaller.appspotmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
strparser wants to check socket ownership without producing any
warnings. As indicated by the comment in the code, it is permissible
for owned_by_user to return true.
Fixes: 43a0c6751a ("strparser: Stream parser for messages")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-and-tested-by: <syzbot+c91c53af67f9ebe599a337d2e70950366153b295@syzkaller.appspotmail.com>
Signed-off-by: Tom Herbert <tom@quantonium.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This allows checking socket lock ownership with producing lockdep
warnings.
Signed-off-by: Tom Herbert <tom@quantonium.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
skb_copy_ubufs must unclone before it is safe to modify its
skb_shared_info with skb_zcopy_clear.
Commit b90ddd5687 ("skbuff: skb_copy_ubufs must release uarg even
without user frags") ensures that all skbs release their zerocopy
state, even those without frags.
But I forgot an edge case where such an skb arrives that is cloned.
The stack does not build such packets. Vhost/tun skbs have their
frags orphaned before cloning. TCP skbs only attach zerocopy state
when a frag is added.
But if TCP packets can be trimmed or linearized, this might occur.
Tracing the code I found no instance so far (e.g., skb_linearize
ends up calling skb_zcopy_clear if !skb->data_len).
Still, it is non-obvious that no path exists. And it is fragile to
rely on this.
Fixes: b90ddd5687 ("skbuff: skb_copy_ubufs must release uarg even without user frags")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Most of the I2C headers got moved a long time ago to
include/media/i2c. Stop including them at the patch.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
In commit 42b531de17 ("tipc: Fix missing connection request
handling"), we replaced unconditional wakeup() with condtional
wakeup for clients with flags POLLIN | POLLRDNORM | POLLRDBAND.
This breaks the applications which do a connect followed by poll
with POLLOUT flag. These applications are not woken when the
connection is ESTABLISHED and hence sleep forever.
In this commit, we fix it by including the POLLOUT event for
sockets in TIPC_CONNECTING state.
Fixes: 42b531de17 ("tipc: Fix missing connection request handling")
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The "reserved" field was a way, used at V4L2 API, to add new
data to existing structs without breaking userspace. However,
there are now clever ways of doing that, without needing to add
an uneeded overhead. So, get rid of them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
5 new ioctls were added to the DVB demux API, in order to
handle memory maped I/O. Add documentation for them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
With the new dmx mmap interface, those two syscalls are now
handled by the subsystem. Document them.
This patch is based on the V4L2 text for those ioctls.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Now that VB2 is used by both V4L2 and DVB core, move it to
the common part of the subsystem.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This API is still experimental. Make it optional, allowing to
compile the code without it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Use trivial handling for the new DVB demux ioctls, as none
of them passes a pointer inside their structures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Thomas Gleixner
Mauro Carvalho Chehab
Yong Zhi
Sakari Ailus
Andy Shevchenko
Aishwarya Pant
Sergiy Redko
Riccardo Schirone
Sinan Kaya
Arnd Bergmann
Jeremy Sowden
Linus Torvalds
David S. Miller
Tom Herbert
Willem de Bruijn
Fengguang Wu
Parthasarathy Bhuvaragan