Variable res only holds value 0, so remove it.
This cleans up a coccicheck warning.
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add function to set linkrate for v3 hw.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch updates some register setting according to recommendation
from HW designer and experiment.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use ACPI "_RST" method to reset the controller, since FLR is not
supported.
Function hisi_sas_stop_phys() is introduced to remove some code
duplication.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
mipi_dsi framework provides information about panel's mode of work.
This info should be propagated upstream to configure all elements of
the pipeline. As CRTC is the common denominator of the pipeline we can
put such info into its structures.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Description of drm_helper_hpd_irq_event clearly states that drivers
supporting hotplug events per connector should use different helper -
drm_kms_helper_hotplug_event. To achieve it following changes have
been performed:
- moved down all DSI ops - they require exynos_dsi_disable function
to be defined earlier,
- simplified exynos_dsi_detect - there is no real detection, it just
returns if panel is attached,
- DSI attach/detach callbacks attaches/detaches DRM panel and sets
connector status and other context fields accordingly, all this is
performed under mutex, as these callbacks are asynchronous.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
All encoders share the same code to set encoders possible_crtcs field.
The patch creates helper to abstract out this code.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Linux core provide helpers for polling with timeout, lets use them.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Dan Carpenter <dan.carpenter@oracle.com> observed that the while()
loop in svc_rdma_build_read_chunk() does not document the assumption
that the loop interior is always executed at least once.
Defensive: the function now returns -EINVAL if this assumption
fails.
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Close an attack vector by moving the arrays of per-server methods to
read-only memory.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Close an attack vector by moving the arrays of encoding and decoding
methods to read-only memory.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Close an attack vector by moving the arrays of server-side transport
methods to read-only memory.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Most encoders do nothing in the error case. But they can still screw
things up in that case: most errors happen very early in rpc processing,
possibly before argument fields are filled in and bounds-tested, so
encoders that do anything other than immediately bail on error can
easily crash in odd error cases.
So just handle errors centrally most of the time to remove the chance of
error.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Run a separate ->op_release function if necessary instead of depending
on the xdr encoder to do this.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
tg3_tx() does the normal packet TX completion,
tigon3_dma_hwbug_workaround() and tg3_tso_bug() both need to allocate a
new SKB that is suitable to workaround HW bugs, and finally
tg3_free_rings() is doing ring cleanup. Use dev_consume_skb_any() for
these 3 locations to be SKB drop monitor friendly.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case bcm_sysport_init_tx_ring() is not able to allocate ring->cbs, we
would return with an error, and call bcm_sysport_fini_tx_ring() and it
would see that ring->cbs is NULL and do nothing. This would leak the
coherent DMA descriptor area, so we need to free it on error before
returning.
Reported-by: Eric Dumazet <edumazet@gmail.com>
Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are 3 spots where we call dev_kfree_skb() but we are actually
just doing a normal SKB consumption: __bcmgenet_tx_reclaim() for normal
TX reclamation, bcmgenet_alloc_rx_buffers() during the initial RX ring
setup and bcmgenet_free_rx_buffers() during RX ring cleanup.
Fixes: d6707bec59 ("net: bcmgenet: rewrite bcmgenet_rx_refill()")
Fixes: f48bed16a7 ("net: bcmgenet: Free skb after last Tx frag")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a bug causing any sock operations to always return EINVAL.
Fixes: a5192c5237 ("bpf: fix to bpf_setsockops").
Reported-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Craig Gallek <kraig@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Utilize dev_consume_skb_any(cb->skb) in bcm_sysport_free_cb() which is
used when a TX packet is completed, as well as when the RX ring is
cleaned on shutdown. None of these two cases are packet drops, so be
drop monitor friendly.
Suggested-by: Eric Dumazet <edumazet@gmail.com>
Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Sitnicki says:
====================
ipv6: Route ICMPv6 errors with the flow when ECMP in use
This patch set is another take at making Path MTU Discovery work when
server nodes are behind a router employing multipath routing in a
load-balance or anycast setup (that is, when not every end-node can be
reached by every path). The problem has been well described in RFC 7690
[1], but in short - in such setups ICMPv6 PTB errors are not guaranteed
to be routed back to the server node that sent a reply that exceeds path
MTU.
The proposed solution is two-fold:
(1) on the server side - reflect the Flow Label [2]. This can be done
without modifying the application using a new per-netns sysctl knob
that has been proposed independently of this patchset in the patch
entitled "ipv6: Add sysctl for per namespace flow label
reflection" [3].
(2) on the ECMP router - make the ipv6 routing subsystem look into the
ICMPv6 error packets and compute the flow-hash from its payload,
i.e. the offending packet that triggered the error. This is the
same behavior as ipv4 stack has already.
With both parts in place Path MTU Discovery can work past the ECMP
router when using IPv6.
[1] https://tools.ietf.org/html/rfc7690
[2] https://tools.ietf.org/html/draft-wang-6man-flow-label-reflection-01
[3] http://patchwork.ozlabs.org/patch/804870/
v1 -> v2:
- don't use "extern" in external function declaration in header file
- style change, put as many arguments as possible on the first line of
a function call, and align consecutive lines to the first argument
- expand the cover letter based on the feedback
v2 -> v3:
- switch to computing flow-hash using flow dissector to align with
recent changes to multipath routing in ipv4 stack
- add a sysctl knob for enabling flow label reflection per netns
---
Testing has covered multipath routing of ICMPv6 PTB errors in forward
and local output path in a simple use-case of an HTTP server sending a
reply which is over the path MTU size [3]. I have also checked if the
flows get evenly spread over multiple paths (i.e. if there are no
regressions) [4].
[3] https://github.com/jsitnicki/tools/tree/master/net/tests/ecmp/pmtud
[4] https://github.com/jsitnicki/tools/tree/master/net/tests/ecmp/load-balance
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Allow our callers to influence the choice of ECMP link by honoring the
hash passed together with the flow info. This allows for special
treatment of ICMP errors which we would like to route over the same path
as the IPv6 datagram that triggered the error.
Also go through rt6_multipath_hash(), in the usual case when we aren't
dealing with an ICMP error, so that there is one central place where
multipath hash is computed.
Signed-off-by: Jakub Sitnicki <jkbs@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 644d0e6569 ("ipv6 Use get_hash_from_flowi6 for rt6 hash") has
turned rt6_info_hash_nhsfn() into a one-liner, so it no longer makes
sense to keep it around. Also remove the accompanying comment that has
become outdated.
Signed-off-by: Jakub Sitnicki <jkbs@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When forwarding or sending out an ICMPv6 error, look at the embedded
packet that triggered the error and compute a flow hash over its
headers.
This let's us route the ICMP error together with the flow it belongs to
when multipath (ECMP) routing is in use, which in turn makes Path MTU
Discovery work in ECMP load-balanced or anycast setups (RFC 7690).
Granted, end-hosts behind the ECMP router (aka servers) need to reflect
the IPv6 Flow Label for PMTUD to work.
The code is organized to be in parallel with ipv4 stack:
ip_multipath_l3_keys -> ip6_multipath_l3_keys
fib_multipath_hash -> rt6_multipath_hash
Signed-off-by: Jakub Sitnicki <jkbs@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allow for functions that fill out the IPv6 flow info to also pass a hash
computed over the skb contents. The hash value will drive the multipath
routing decisions.
This is intended for special treatment of ICMPv6 errors, where we would
like to make a routing decision based on the flow identifying the
offending IPv6 datagram that triggered the error, rather than the flow
of the ICMP error itself.
Signed-off-by: Jakub Sitnicki <jkbs@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
One too many arguments compared to the non-stub version.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: ffd3cdccf2 ("devlink: Add support for dynamic table size")
Signed-off-by: David S. Miller <davem@davemloft.net>
Reflecting IPv6 Flow Label at server nodes is useful in environments
that employ multipath routing to load balance the requests. As "IPv6
Flow Label Reflection" standard draft [1] points out - ICMPv6 PTB error
messages generated in response to a downstream packets from the server
can be routed by a load balancer back to the original server without
looking at transport headers, if the server applies the flow label
reflection. This enables the Path MTU Discovery past the ECMP router in
load-balance or anycast environments where each server node is reachable
by only one path.
Introduce a sysctl to enable flow label reflection per net namespace for
all newly created sockets. Same could be earlier achieved only per
socket by setting the IPV6_FL_F_REFLECT flag for the IPV6_FLOWLABEL_MGR
socket option.
[1] https://tools.ietf.org/html/draft-wang-6man-flow-label-reflection-01
Signed-off-by: Jakub Sitnicki <jkbs@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Casting between an 'int' and a pointer causes a warning on
64-bit architectures in compile-testing this driver:
drivers/phy/ralink/phy-ralink-usb.c: In function 'ralink_usb_phy_probe':
drivers/phy/ralink/phy-ralink-usb.c:195:13: error: cast from pointer to
integer of different size [-Werror=pointer-to-int-cast]
This changes the code to cast to uintptr_t instead. This is
guaranteed to do what we want on all architectures and avoids
the warning.
Fixes: 2411a736ff ("phy: ralink-usb: add driver for Mediatek/Ralink")
Acked-by: John Crispin <john@phrozen.org>
Tested-by Harvey Hunt <harvey.hunt@imgtec.com>
Reviewed-by Harvey Hunt <harvey.hunt@imgtec.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds the necessary data for handling io voltage domains on the RV1108.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
If 'dev_pm_opp_set_supported_hw()' fails, 'opp_data->opp_node' refcount
will be decremented 2 times.
One, just a few lines above, and another one in the error handling path.
Fix it by simply moving the 'of_node_put' call of the normal path.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Drop few ARM (32 and 64 bit) platforms from the whitelist which always
use "operating-points-v2" property from their DT. They should continue
to work after this patch.
Tested on Hikey platform (only the "hisilicon,hi6220" entry).
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The initial idea of creating the cpufreq-dt-platdev.c file was to keep a
list of platforms that use the "operating-points" (V1) bindings and
create cpufreq device for them only, as we weren't sure which platforms
would want the device to get created automatically as some had their own
cpufreq drivers as well, or wanted to initialize cpufreq after doing
some stuff from platform code.
But that wasn't the case with platforms using "operating-points-v2"
property. We wanted the device to get created automatically without the
need of adding them to the whitelist. Though, we will still have some
exceptions where we don't want to create the device automatically.
Rename the earlier platform list as *whitelist* and create a new
*blacklist* as well.
The cpufreq-dt device will get created if:
- The platform is there in the whitelist OR
- The platform has "operating-points-v2" property in CPU0's DT node and
isn't part of the blacklist .
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The new 'select CPUFREQ_DT' statement causes a warning in some
configurations:
warning: (ARCH_U8500) selects CPUFREQ_DT which has unmet direct dependencies (CPU_FREQ && HAVE_CLK && OF && (!CPU_THERMAL || THERMAL))
No other platform does this, so I think for consistency it's
best if we remove it again from ux500 and instead add the driver
to the defconfig.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
A single patch switching to a new OF helper.
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Merge tag 'sunxi-drm-for-4.14-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next
sun4i DRM changes for 4.14, take 2
A single patch switching to a new OF helper.
* tag 'sunxi-drm-for-4.14-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
drm/sun4i: use of_graph_get_remote_endpoint()
* fix compilation when compiling omapfb driver
* WA for OMAP3 endless sync lost issue
* WA for OMAP5 DSI PLL issue
* fix analog TV out modecheck
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Merge tag 'omapdrm-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next
omapdrm fixes for 4.14
* fix compilation when compiling omapfb driver
* WA for OMAP3 endless sync lost issue
* WA for OMAP5 DSI PLL issue
* fix analog TV out modecheck
* tag 'omapdrm-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
ARM: OMAP2+: fix missing variable declaration
drm/omap: work-around for omap3 display enable
drm/omap: fix i886 work-around
drm/omap: fix analog tv-out modecheck
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Updates for 4.14.. I have some further patches from Jordan to add
multiple priority levels and pre-emption, but those will probably be
for 4.15 to give me time for the mesa parts.
* tag 'drm-msm-next-2017-08-22' of git://people.freedesktop.org/~robclark/linux:
drm/msm/mdp5: mark runtime_pm functions as __maybe_unused
drm/msm: remove unused variable
drm/msm/mdp5: make helper function static
drm/msm: make msm_framebuffer_init() static
drm/msm: add helper to allocate stolen fb
drm/msm: don't track fbdev's gem object separately
drm/msm: add modeset module param
drm/msm/mdp5: add tracking for clk enable-count
drm/msm: remove unused define
drm/msm: Add a helper function for in-kernel buffer allocations
drm/msm: Attach the GPU MMU when it is created
drm/msm: Add A5XX hardware fault detection
drm/msm: Remove uneeded platform dev members
drm/msm/mdp5: Set up runtime PM for MDSS
drm/msm/mdp5: Write to SMP registers even if allocations don't change
drm/msm/mdp5: Don't use mode_set helper funcs for encoders and CRTCs
drm/msm/dsi: Implement RPM suspend/resume callbacks
drm/msm/dsi: Set up runtime PM for DSI
drm/msm/hdmi: Set up runtime PM for HDMI
drm/msm/mdp5: Use runtime PM get/put API instead of toggling clocks
Core Changes:
- Release driver tracking before making the object available again (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
* tag 'drm-misc-fixes-2017-08-24' of git://anongit.freedesktop.org/git/drm-misc:
drm: Release driver tracking before making the object available again
drm/i915 fixes for v4.13-rc7
* tag 'drm-intel-fixes-2017-08-24' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915/gvt: Fix the kernel null pointer error
drm/i915: Clear lost context-switch interrupts across reset
drm/i915/bxt: use NULL for GPIO connection ID
drm/i915/cnl: Fix LSPCON support.
drm/i915/vbt: ignore extraneous child devices for a port
drm/i915: Initialize 'data' in intel_dsi_dcs_backlight.c
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixed the issue that two finger scroll does not work correctly
on V8 protocol. The cause is that V8 protocol X-coordinate decode
is wrong at SS4 PLUS device. I added SS4 PLUS X decode definition.
Mote notes:
the problem manifests itself by the commit e7348396c6 ("Input: ALPS
- fix V8+ protocol handling (73 03 28)"), where a fix for the V8+
protocol was applied. Although the culprit must have been present
beforehand, the two-finger scroll worked casually even with the
wrongly reported values by some reason. It got broken by the commit
above just because it changed x_max value, and this made libinput
correctly figuring the MT events. Since the X coord is reported as
falsely doubled, the events on the right-half side go outside the
boundary, thus they are no longer handled. This resulted as a broken
two-finger scroll.
One finger event is decoded differently, and it didn't suffer from
this problem. The problem was only about MT events. --tiwai
Fixes: e7348396c6 ("Input: ALPS - fix V8+ protocol handling (73 03 28)")
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Paul Donohue <linux-kernel@PaulSD.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- One core fix accidentally applied first to for-next and then cherry
picked back because it needed to be in the -rc cycles instead
- Another core fix
- Two mlx5 fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull more rdma fixes from Doug Ledford:
"Well, I thought we were going to be done for this -rc cycle. I should
have known better than to say so though.
We have four additional items that trickled in.
One was a simple mistake on my part. I took a patch into my for-next
thinking that the issue was less severe than it was. I was then
notified that it needed to be in my -rc area instead.
The other three were just found late in testing.
Summary:
- One core fix accidentally applied first to for-next and then cherry
picked back because it needed to be in the -rc cycles instead
- Another core fix
- Two mlx5 fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
IB/mlx5: Always return success for RoCE modify port
IB/mlx5: Fix Raw Packet QP event handler assignment
IB/core: Avoid accessing non-allocated memory when inferring port type
RDMA/uverbs: Initialize cq_context appropriately
To specify memory for remoteproc, we declare (dma_declare_coherent_memory())
an area which is ioremap'ed to the vmalloc area. However, this address is
not a kernel address so virt_addr_valid(buf) fails.
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Tested-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Rpmsg buffer size is currently fixed to 512 bytes.
This patch introduces a new capability in struct virtproc_info
to tune shared buffer size between host and coprocessor
according to the needs.
Acked-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
