This patch adds GRO functions (gro_receive and gro_complete) to UDP
sockets. udp_gro_receive is changed to perform socket lookup on a
packet. If a socket is found the related GRO functions are called.
This features obsoletes using UDP offload infrastructure for GRO
(udp_offload). This has the advantage of not being limited to provide
offload on a per port basis, GRO is now applied to whatever individual
UDP sockets are bound to. This also allows the possbility of
"application defined GRO"-- that is we can attach something like
a BPF program to a UDP socket to perfrom GRO on an application
layer protocol.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add externally visible functions to lookup a UDP socket by skb. This
will be used for GRO in UDP sockets. These functions also check
if skb->dst is set, and if it is not skb->dev is used to get dev_net.
This allows calling lookup functions before dst has been set on the
skbuff.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In inet_iif check if skb_rtable is NULL for the skb and return
skb->skb_iif if it is.
This change allows inet_iif to be called before the dst
information has been set in the skb (e.g. when doing socket based
UDP GRO).
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 5a5abb1fa3 ("tun, bpf: fix suspicious RCU usage
in tun_{attach, detach}_filter") and replaces it to use lock_sock around
sk_{attach,detach}_filter. The checks inside filter.c are updated with
lockdep_sock_is_held to check for proper socket locks.
It keeps the code cleaner by ensuring that only one lock governs the
socket filter instead of two independent locks.
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The socket is either locked if we hold the slock spin_lock for
lock_sock_fast and unlock_sock_fast or we own the lock (sk_lock.owned
!= 0). Check for this and at the same time improve that the current
thread/cpu is really holding the lock.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
During release_sock we use callbacks to finish the processing
of outstanding skbs on the socket. We actually are still locked,
sk_locked.owned == 1, but we already told lockdep that the mutex
is released. This could lead to false positives in lockdep for
lockdep_sock_is_held (we don't hold the slock spinlock during processing
the outstanding skbs).
I took over this patch from Eric Dumazet and tested it.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
ath.git patches for 4.7. Major changes:
ath10k
* implement push-pull tx model using mac80211 software queuing support
* enable scan in AP mode (NL80211_FEATURE_AP_SCAN)
wil6210
* add basic PBSS (Personal Basic Service Set) support
* add initial P2P support
* add oob_mode module parameter
Make it clear that the "domain" parameter of the cpg_mstp_attach_dev()
and cpg_mstp_detach_dev() functions is not used.
The cpg_mstp_attach_dev() and cpg_mstp_detach_dev() callbacks are not
only used by the CPG/MSTP Clock Domain driver, but also by the R-Mobile
SYSC PM Domain driver.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
As of commit 71d076ceb2 ("ARM: shmobile: Enable PM and
PM_GENERIC_DOMAINS for SoCs with PM Domains"),
CONFIG_PM_GENERIC_DOMAINS_OF is always enabled for SoCs with MSTP
clocks.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
On some platforms, MMIO regions might need slightly different treatment
compared to mapping regular memory; add the notion of MMIO mappings to
the IOMMU API's memory type flags, so that callers can let the IOMMU
drivers know to do the right thing.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The VIRTIO 1.0 specification added the DEVICE_NEEDS_RESET device status
bit in "VIRTIO-98: Add DEVICE_NEEDS_RESET". This patch defines the
device status bit in the uapi header file so that both the kernel and
userspace applications can use it.
The bit is currently unused by the virtio guest drivers and vhost.
According to the spec "a good implementation will try to recover by
issuing a reset". This is not attempted here because it requires
auditing the virtio drivers to ensure there are no resource leaks or
crashes if the device needs to be reset mid-operation.
See "2.1 Device Status Field" in the VIRTIO 1.0 specification for
details.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The pkeys changes brought about a truly hideous set of macros in:
cde70140fe ("mm/gup: Overload get_user_pages() functions")
... which macros are (ab-)using the fact that __VA_ARGS__ can be used
to shift parameter positions in macro arguments without breaking the
build and so can be used to call separate C functions depending on
the number of arguments of the macro.
This allowed easy migration of these 3 GUP APIs, as both these variants
worked at the C level:
old:
ret = get_user_pages(current, current->mm, address, 1, 1, 0, &page, NULL);
new:
ret = get_user_pages(address, 1, 1, 0, &page, NULL);
... while we also generated a (functionally harmless but noticeable) build
time warning if the old API was used. As there are over 300 uses of these
APIs, this trick eased the migration of the API and avoided excessive
migration pain in linux-next.
Now, with its work done, get rid of all of that complication and ugliness:
3 files changed, 16 insertions(+), 140 deletions(-)
... where the linecount of the migration hack was further inflated by the
fact that there are NOMMU variants of these GUP APIs as well.
Much of the conversion was done in linux-next over the past couple of months,
and Linus recently removed all remaining old API uses from the upstream tree
in the following upstrea commit:
cb107161df ("Convert straggling drivers to new six-argument get_user_pages()")
There was one more old-API usage in mm/gup.c, in the CONFIG_HAVE_GENERIC_RCU_GUP
code path that ARM, ARM64 and PowerPC uses.
After this commit any old API usage will break the build.
[ Also fixed a PowerPC/HAVE_GENERIC_RCU_GUP warning reported by Stephen Rothwell. ]
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Lots of misc bug fixes for radeon and amdgpu and one for ttm.
- fix vram info fetching on Fiji and unposted boards
- additional vblank fixes from the conversion to drm_vblank_on/off
- UVD dGPU suspend and resume fixes
- lots of powerplay fixes
- fix a fence leak in the pageflip code
- ttm fix for platforms where CPU is 32 bit, but physical addresses are >32bits
* 'drm-fixes-4.6' of git://people.freedesktop.org/~agd5f/linux: (21 commits)
drm/amdgpu: total vram size also reduces pin size
drm/amd/powerplay: add uvd/vce dpm enabling flag default.
drm/amd/powerplay: fix issue that resume back, dpm can't work on FIJI.
drm/amdgpu: save and restore the firwmware cache part when suspend resume
drm/amdgpu: save and restore UVD context with suspend and resume
drm/ttm: use phys_addr_t for ttm_bus_placement
drm/radeon: Only call drm_vblank_on/off between drm_vblank_init/cleanup
drm/amdgpu: fence wait old rcu slot
drm/amdgpu: fix leaking fence in the pageflip code
drm/amdgpu: print vram type rather than just DDR
drm/amdgpu/gmc: use proper register for vram type on Fiji
drm/amdgpu/gmc: move vram type fetching into sw_init
drm/amdgpu: Set vblank_disable_allowed = true
drm/radeon: Set vblank_disable_allowed = true
drm/amd/powerplay: Need to change boot to performance state in resume.
drm/amd/powerplay: add new Fiji function for not setting same ps.
drm/amdgpu: check dpm state before pm system fs initialized.
drm/amd/powerplay: notify amdgpu whether dpm is enabled or not.
drm/amdgpu: Not support disable dpm in powerplay.
drm/amdgpu: add an cgs interface to notify amdgpu the dpm state.
...
Implement VXLAN-GPE. Only COLLECT_METADATA is supported for now (it is
possible to support static configuration, too, if there is demand for it).
The GPE header parsing has to be moved before iptunnel_pull_header, as we
need to know the protocol.
v2: Removed what was called "L2 mode" in v1 of the patchset. Only "L3 mode"
(now called "raw mode") is added by this patch. This mode does not allow
Ethernet header to be encapsulated in VXLAN-GPE when using ip route to
specify the encapsulation, IP header is encapsulated instead. The patch
does support Ethernet to be encapsulated, though, using ETH_P_TEB in
skb->protocol. This will be utilized by other COLLECT_METADATA users
(openvswitch in particular).
If there is ever demand for Ethernet encapsulation with VXLAN-GPE using
ip route, it's easy to add a new flag switching the interface to
"Ethernet mode" (called "L2 mode" in v1 of this patchset). For now,
leave this out, it seems we don't need it.
Disallowed more flag combinations, especially RCO with GPE.
Added comment explaining that GBP and GPE cannot be set together.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allow calling of iptunnel_pull_header without special casing ETH_P_TEB inner
protocol.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes: ddf97ccdd7 ("net_sched: add network namespace support for tc actions")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IEC958 channel status helper that gets the audio properties from
snd_pcm_hw_params instead of snd_pcm_runtime. This is needed to
produce the channel status bits already in audio stream configuration
phase.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Make the determination of the trustworthiness of a key dependent on whether
a key that can verify it is present in the supplied ring of trusted keys
rather than whether or not the verifying key has KEY_FLAG_TRUSTED set.
verify_pkcs7_signature() will return -ENOKEY if the PKCS#7 message trust
chain cannot be verified.
Signed-off-by: David Howells <dhowells@redhat.com>
Generalise system_verify_data() to provide access to internal content
through a callback. This allows all the PKCS#7 stuff to be hidden inside
this function and removed from the PE file parser and the PKCS#7 test key.
If external content is not required, NULL should be passed as data to the
function. If the callback is not required, that can be set to NULL.
The function is now called verify_pkcs7_signature() to contrast with
verify_pefile_signature() and the definitions of both have been moved into
linux/verification.h along with the key_being_used_for enum.
Signed-off-by: David Howells <dhowells@redhat.com>
Add key identifier pointers to public_key_signature struct so that they can
be used to retain the identifier of the key to be used to verify the
signature in both PKCS#7 and X.509.
Signed-off-by: David Howells <dhowells@redhat.com>
Allow authentication data to be stored in an asymmetric key in the 4th
element of the key payload and provide a way for it to be destroyed.
For the public key subtype, this will be a public_key_signature struct.
Signed-off-by: David Howells <dhowells@redhat.com>
The comment is for the wrong function. Fix it.
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This extends NL80211_CMD_CONNECT to allow the NL80211_ATTR_PREV_BSSID
attribute to be used similarly to way this was already allowed with
NL80211_CMD_ASSOCIATE. This allows user space to request reassociation
(instead of association) when already connected to an AP. This provides
an option to reassociate within an ESS without having to disconnect and
associate with the AP.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Requires software tx queueing and fast-xmit support. For good
performance, drivers need frag_list support as well. This avoids the
need for copying data of aggregated frames. Running without it is only
supported for debugging purposes.
To avoid performance and packet size issues, the rate control module or
driver needs to limit the maximum A-MSDU size by setting
max_rc_amsdu_len in struct ieee80211_sta.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
[fix locking issue]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If the driver advertises the new HW flag USE_RSS, make the
station statistics on the fast-rx path per-CPU. This will
enable calling the RX in parallel, only hitting locking or
shared cachelines when the fast-RX path isn't available.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The regular RX path has a lot of code, but with a few
assumptions on the hardware it's possible to reduce the
amount of code significantly. Currently the assumptions
on the driver are the following:
* hardware/driver reordering buffer (if supporting aggregation)
* hardware/driver decryption & PN checking (if using encryption)
* hardware/driver did de-duplication
* hardware/driver did A-MSDU deaggregation
* AP_LINK_PS is used (in AP mode)
* no client powersave handling in mac80211 (in client mode)
of which some are actually checked per packet:
* de-duplication
* PN checking
* decryption
and additionally packets must
* not be A-MSDU (have been deaggregated by driver/device)
* be data packets
* not be fragmented
* be unicast
* have RFC 1042 header
Additionally dynamically we assume:
* no encryption or CCMP/GCMP, TKIP/WEP/other not allowed
* station must be authorized
* 4-addr format not enabled
Some data needed for the RX path is cached in a new per-station
"fast_rx" structure, so that we only need to look at this and
the packet, no other memory when processing packets on the fast
RX path.
After doing the above per-packet checks, the data path collapses
down to a pretty simple conversion function taking advantage of
the data cached in the small fast_rx struct.
This should speed up the RX processing, and will make it easier
to reason about parallelizing RX (for which statistics will need
to be per-CPU still.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Sometimes drivers already looked up, or know out-of-band
from their device, which station transmitted a given RX
frame. Allow them to pass the station pointer to mac80211
to save the extra lookup.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Commit 1084b1988d (xen: Add Xen specific
page definition) caused a regression in 4.4.
The xen functions to convert between pages and pfns fail due to an
overflow on systems where a physical address may not fit in an
unsigned long (e.g. x86 32 bit PAE systems). Rework the conversion to
avoid overflow. This should also result in simpler object code.
This bug manifested itself as disk corruption with Linux 4.4 when
using blkfront in a Xen HVM x86 32 bit guest with more than 4 GiB of
memory.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Cc: <stable@vger.kernel.org> # 4.4+
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Move the state_changed variable into struct otg_fsm
so that we can support multiple instances.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
struct otg_fsm is the interface to the OTG state machine.
Document the input, output and internal state variables.
Definations are taken from Table 7-2 and Table 7-4 of
the USB OTG & EH Specification Rev.2.0
Re-arrange some of the members as per use case for more
clarity.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Add the necessary clock to use the ckil on i.MX7.
Inspired from the following patch:
b80e8271
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This pull request want to land the analogix_dp driver into drm/bridge directory,
which reused the Exynos DP code, and add Rockchip DP support. And those
patches have been:
* 'drm-next-analogix-dp-v2' of github.com:yakir-Yang/linux:
drm: bridge: analogix/dp: Fix the possible dead lock in bridge disable time
drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time
drm: bridge: analogix/dp: add edid modes parse in get_modes method
drm: bridge: analogix/dp: move hpd detect to connector detect function
drm: bridge: analogix/dp: try force hpd after plug in lookup failed
drm: bridge: analogix/dp: add max link rate and lane count limit for RK3288
drm: bridge: analogix/dp: add some rk3288 special registers setting
dt-bindings: add document for rockchip variant of analogix_dp
drm: rockchip: dp: add rockchip platform dp driver
ARM: dts: exynos/dp: remove some properties that deprecated by analogix_dp driver
dt-bindings: add document for analogix display port driver
drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & dynamic_range
drm: bridge: analogix/dp: remove duplicate configuration of link rate and link count
drm: bridge: analogix/dp: fix some obvious code style
drm: bridge: analogix/dp: rename register constants
drm/exynos: dp: rename implementation specific driver part
drm: bridge: analogix/dp: split exynos dp driver to bridge directory
The current OF translation of channels can never work with
any DMA client using the DMA channels directly: the only way
to get the channels initialized properly is in the
dma_async_device_register() call, where chan->dev etc is
allocated and initialized.
Allocate and initialize all possible DMA channels and
only augment a target channel with the periph_buses at
of_xlate(). Remove some const settings to make things work.
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Joachim Eastwood <manabian@gmail.com>
Tested-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
- Check whether plane parameters comply with IPU IDMAC limitations and
fix planar YUV 4:2:0 U/V offsets and stride
- Cleanup encoder in dw_hdmi-imx bind error path and
remove a superfluous platform_set_drvdata in dw_hdmi-imx
- DMFC setup fixes: lock the ipu_dmfc_init_channel function against
concurrent use, rename it to ipu_dmfc_config_wait4eot, and call
it after the FIFO size has been determined.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=3/Gi
-----END PGP SIGNATURE-----
Merge tag 'imx-drm-next-2016-04-01' of git://git.pengutronix.de/git/pza/linux into drm-fixes
imx-drm: stricter plane parameter checking, dw_hdmi-imx and dmfc fixes
- Check whether plane parameters comply with IPU IDMAC limitations and
fix planar YUV 4:2:0 U/V offsets and stride
- Cleanup encoder in dw_hdmi-imx bind error path and
remove a superfluous platform_set_drvdata in dw_hdmi-imx
- DMFC setup fixes: lock the ipu_dmfc_init_channel function against
concurrent use, rename it to ipu_dmfc_config_wait4eot, and call
it after the FIFO size has been determined.
* tag 'imx-drm-next-2016-04-01' of git://git.pengutronix.de/git/pza/linux:
drm/imx: Don't set a gamma table size
drm/imx: ipuv3-plane: Configure DMFC wait4eot bit after slots are determined
gpu: ipu-v3: ipu-dmfc: Rename ipu_dmfc_init_channel to ipu_dmfc_config_wait4eot
gpu: ipu-v3: ipu-dmfc: Make function ipu_dmfc_init_channel() return void
gpu: ipu-v3: ipu-dmfc: Protect function ipu_dmfc_init_channel() with mutex
drm/imx: dw_hdmi: Don't call platform_set_drvdata()
drm/imx: dw_hdmi: Call drm_encoder_cleanup() in error path
drm/imx: ipuv3-plane: fix planar YUV 4:2:0 support
drm/imx: ipuv3-plane: Add more thorough checks for plane parameter limitations
gpu: ipu-cpmem: modify ipu_cpmem_set_yuv_planar_full for better control
others are usual stable material.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJXA8x6AAoJEL/70l94x66D0x8H/RcBnc75994RQ++WmHSvD9GF
yruGB8soLDdjX+Oceol0aEPHokrBu3JtcdoTBe0GwbCKV/F5NkQZ4EfLxDtR3tte
7ILkPULLy5GElFpJNQuT4pmXzTEspFvXpqHhFik7WVBga3W9wMFQcjbrgmGBUzLE
p2aJVhZyErpKxGFkUYWhDnlqWsguTTIzv/pqNhLY4VVc0UrXN9AA0fq9RkvgU3KS
Hxk4/A6SV/b7dyzvttzITww0f1iu8FmlLj2TXapIEoOz7AnInD6KIN0RYpxbDjxN
bEzEfpahUtuDeM87/t2kHEj0Gn09iHK7/BbCC1Hrwo1CQhbAQ/D0GIvqYAQixf4=
=NugZ
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Miscellaneous bugfixes.
The ARM and s390 fixes are for new regressions from the merge window,
others are usual stable material"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
compiler-gcc: disable -ftracer for __noclone functions
kvm: x86: make lapic hrtimer pinned
s390/mm/kvm: fix mis-merge in gmap handling
kvm: set page dirty only if page has been writable
KVM: x86: reduce default value of halt_poll_ns parameter
KVM: Hyper-V: do not do hypercall userspace exits if SynIC is disabled
KVM: x86: Inject pending interrupt even if pending nmi exist
arm64: KVM: Register CPU notifiers when the kernel runs at HYP
arm64: kvm: 4.6-rc1: Fix VTCR_EL2 VS setting
Enable peeking at UDP datagrams at the offset specified with socket
option SOL_SOCKET/SO_PEEK_OFF. Peek at any datagram in the queue, up
to the end of the given datagram.
Implement the SO_PEEK_OFF semantics introduced in commit ef64a54f6e
("sock: Introduce the SO_PEEK_OFF sock option"). Increase the offset
on peek, decrease it on regular reads.
When peeking, always checksum the packet immediately, to avoid
recomputation on subsequent peeks and final read.
The socket lock is not held for the duration of udp_recvmsg, so
peek and read operations can run concurrently. Only the last store
to sk_peek_off is preserved.
Signed-off-by: Sam Kumar <samanthakumar@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove UDP transport headers before queueing packets for reception.
This change simplifies a follow-up patch to add MSG_PEEK support.
Signed-off-by: Sam Kumar <samanthakumar@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make the peek offset interface safe to use in lockless environments.
Use READ_ONCE and WRITE_ONCE to avoid race conditions between testing
and updating the peek offset.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use list_* helpers in sctp_list_dequeue, more readable.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Legacy clients don't support P2P power save mechanism, and thus if a P2P GO
has a legacy client connected to it, it should disable P2P PS mechanisms.
Let the driver know about this with a new bss_conf parameter.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Legacy clients don't support P2P power save mechanisms, and thus
if a P2P GO has a legacy client connected to it, it has to make
some changes in the PS behavior.
To handle this, add an attribute to specify whether a station supports
P2P PS or not. If the attribute was not specified cfg80211 will assume
that station supports it for P2P GO interface, and does NOT support it
for AP interface, matching the current assumptions in the code.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Some GPIO controllers has a special hardware bit we can flip
to support open drain / source. This means that on these hardwares
we do not need to emulate OD/OS by setting the line to input
instead of actively driving it high/low. Add an optional vtable
callback to the driver set_single_ended() so that driver can
implement this in hardware if they have it.
We may need a pinctrl_gpio_set_config() call at some point to
propagate this down to a backing pin control device on systems
with split GPIO/pin control.
Reported-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Tegra powergate and rail IDs are always positive values and so change
the type to be unsigned and remove the tests to see if the ID is less
than zero. Update the Tegra DC powergate type to be an unsigned as well.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
-ftracer can duplicate asm blocks causing compilation to fail in
noclone functions. For example, KVM declares a global variable
in an asm like
asm("2: ... \n
.pushsection data \n
.global vmx_return \n
vmx_return: .long 2b");
and -ftracer causes a double declaration.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Marek <mmarek@suse.cz>
Cc: stable@vger.kernel.org
Cc: kvm@vger.kernel.org
Reported-by: Linda Walsh <lkml@tlinx.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
iommu drivers that support the standard DT bindings use a of_xlate
callback pointer, but that is only part of struct iommu_ops when
CONFIG_OF_IOMMU is enabled, leading to build errors in randconfig
builds when that is not provided:
drivers/iommu/mtk_iommu.c:497:2: error: unknown field 'of_xlate' specified in initializer
.of_xlate = mtk_iommu_of_xlate,
^
drivers/iommu/mtk_iommu.c:497:14: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.of_xlate = mtk_iommu_of_xlate,
^~~~~~~~~~~~~~~~~~
drivers/iommu/mtk_iommu.c:497:14: note: (near initialization for 'mtk_iommu_ops.domain_get_attr')
We can work around it by adding more #ifdefs in each driver, but
it seems nicer to just allow setting the pointer even if it is
unused. This makes the driver code look nicer, and it gives better
compile-time coverage when test building on other architectures.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 0df4fabe20 ("iommu/mediatek: Add mt8173 IOMMU driver")
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The patch "scsi: rescan VPD attributes" introduced a regression in which
devices that don't support VPD were being scanned for VPD attributes
anyway. This could cause issues for some devices and should be avoided
so the check for scsi_level has been moved out of scsi_add_lun and into
scsi_attach_vpd so that all callers will not scan VPD for devices that
don't support it.
[mkp: Merge fix]
Fixes: 09e2b0b146 ("scsi: rescan VPD attributes")
Cc: <stable@vger.kernel.org> #v4.5+
Suggested-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add definition for Fine Timing Measurement (FTM) frame format
as defined in IEEE802.11-REVmcD5.0 section 9.6.8.33
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
