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git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"This should be the final set of drm fixes for 4.10: one vmwgfx boot
fix, one vc4 fix, and a few i915 fixes:
* tag 'drm-fixes-for-v4.10-rc8' of git://people.freedesktop.org/~airlied/linux:
drm: vc4: adapt to new behaviour of drm_crtc.c
drm/i915: Always convert incoming exec offsets to non-canonical
drm/i915: Remove overzealous fence warn on runtime suspend
drm/i915/bxt: Add MST support when do DPLL calculation
drm/i915: don't warn about Skylake CPU - KabyPoint PCH combo
drm/i915: fix i915 running as dom0 under Xen
drm/i915: Flush untouched framebuffers before display on !llc
drm/i915: fix use-after-free in page_flip_completed()
drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format
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I don't think GCC has figured out how to optimize the memset() away, but
they might eventually so let's future proof this code a bit.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
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This function has two callers and neither are able to handle a NULL
return. Really, -EINVAL is the correct thing return here anyway. This
fixes some static checker warnings like:
security/keys/encrypted-keys/encrypted.c:709 encrypted_key_decrypt()
error: uninitialized symbol 'master_key'.
Fixes: 7e70cb497850 ("keys: add new key-type encrypted")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
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The sign-file tool failed to build against libressl. Fix this by extending
the PKCS7 check and thus making sign-file link against libressl without an
error.
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
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Dan Carpenter kindly reported:
<quote>
The patch d27a7cb91960: "zfcp: trace on request for open and close of
WKA port" from Aug 10, 2016, leads to the following static checker
warning:
drivers/s390/scsi/zfcp_fsf.c:1615 zfcp_fsf_open_wka_port()
warn: 'req' was already freed.
drivers/s390/scsi/zfcp_fsf.c
1609 zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
1610 retval = zfcp_fsf_req_send(req);
1611 if (retval)
1612 zfcp_fsf_req_free(req);
^^^
Freed.
1613 out:
1614 spin_unlock_irq(&qdio->req_q_lock);
1615 if (req && !IS_ERR(req))
1616 zfcp_dbf_rec_run_wka("fsowp_1", wka_port, req->req_id);
^^^^^^^^^^^
Use after free.
1617 return retval;
1618 }
Same thing for zfcp_fsf_close_wka_port() as well.
</quote>
Rather than relying on req being NULL (or ERR_PTR) for all cases where
we don't want to trace or should not trace,
simply check retval which is unconditionally initialized with -EIO != 0
and it can only become 0 on successful retval = zfcp_fsf_req_send(req).
With that we can also remove the then again unnecessary unconditional
initialization of req which was introduced with that earlier commit.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Fixes: d27a7cb91960 ("zfcp: trace on request for open and close of WKA port")
Cc: <stable@vger.kernel.org> #2.6.38+
Reviewed-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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commit 78cbccd3bd68 ("aacraid: Fix for KDUMP driver hang")
caused a problem on older controllers which do not support MSI-x (namely
ASR3405,ASR3805). This patch conditionalizes the previous patch to
controllers which support MSI-x
Cc: <stable@vger.kernel.org> # v4.7+
Fixes: 78cbccd3bd68 ("aacraid: Fix for KDUMP driver hang")
Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>
Signed-off-by: Dave Carroll <david.carroll@microsemi.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://anongit.freedesktop.org/git/drm-intel into drm-fixes
Hopefully final fixes for v4.10, about half of them stable material.
* tag 'drm-intel-fixes-2017-02-09' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915: Always convert incoming exec offsets to non-canonical
drm/i915: Remove overzealous fence warn on runtime suspend
drm/i915/bxt: Add MST support when do DPLL calculation
drm/i915: don't warn about Skylake CPU - KabyPoint PCH combo
drm/i915: fix i915 running as dom0 under Xen
drm/i915: Flush untouched framebuffers before display on !llc
drm/i915: fix use-after-free in page_flip_completed()
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git://anongit.freedesktop.org/git/drm-misc into drm-fixes
Last-minute vc4 fix for 4.10.
* tag 'drm-misc-fixes-2017-02-09' of git://anongit.freedesktop.org/git/drm-misc:
drm: vc4: adapt to new behaviour of drm_crtc.c
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MPI2 controllers sometimes got lost (i.e. disappear from
/sys/bus/pci/devices) if ASMP is enabled.
Signed-off-by: Slava Kardakov <ojab@ojab.ru>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60644
Cc: <stable@vger.kernel.org>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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'conn_info' is malloced in qedi_iscsi_update_conn() and should be freed
before leaving from the error handling cases, otherwise it will cause
memory leak.
Fixes: ace7f46ba5fd ("scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework.")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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into next
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Govindarajulu Varadarajan says:
====================
enic: add vxlan offload support
This series adds vxlan offload support for enic driver. The first
patch adds vxlan devcmd for configuring vxland offload parameters.
Second patch adds ndo_udp_tunnel_add/del and offload on rx path.
There are to modes in which fw supports vxlan offload.
mode 0: fcoe bit is set for encapsulated packet. fcoe_fc_crc_ok is set
if checksum of csum is ok. This bit is or of ip_csum_ok and
tcp_udp_csum_ok
mode 2: BIT(0) in rss_hash is set if it is encapsulated packet.
BIT(1) is set if outer_ip_csum_ok/
BIT(2) is set if outer_tcp_csum_ok
Some hw supports only mode 0, some support mode 0 and 2. Driver gets
the supported modes bitmap using get_supported_feature_ver devcmd
and selects the highest mode both driver and fw supports.
Third patch adds offload support on tx path by adding
enic_features_check().
v2: Order local variable declarations from longest to shortest line,
on all three patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Define ndo_features_check. Hw supports offload only for ipv4 inner and
ipv4 outer pkt.
Code refactor for setting inner tcp pseudo csum.
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Defines enic_udp_tunnel_add/del for configuring vxlan tunnel offload.
enic supports offload of only one ipv4/udp port.
There are two modes that fw supports for vxlan offload.
mode 0: fcoe bit is set for encapsulated packet. fcoe_fc_crc_ok is set
if checksum of csum is ok. This bit is or of ip_csum_ok and
tcp_udp_csum_ok
mode 2: BIT(0) in rss_hash is set if it is encapsulated packet.
BIT(1) is set if outer_ip_csum_ok/
BIT(2) is set if outer_tcp_csum_ok
tcp_udp_csum_ok/ipv4_csum_ok is set if inner csum is OK.
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds devcmds needed for vxlan offload. Implement 3 new devcmd
overlay_offload_ctrl: enable/disable offload
overlay_offload_cfg: update offload udp port number
get_supported_feature_ver: get hw supported offload version. Each
version has different bitmap for csum_ok/encap
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move it out from the middle for the #defines to just before it is
needed.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While adding switch.o to the list of DSA object files, we essentially
duplicated the previous obj-y line and just added switch.o, remove the
duplicate.
Fixes: f515f192ab4f ("net: dsa: add switch notifier")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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USB PHYs need the MDIO clock divisor enabled earlier to work.
Initialize mdio clock divisor in probe function. The ext bus
bit available in the same register will be used by mdio mux
to enable external mdio.
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Fixes: ddc24ae1 ("net: phy: Broadcom iProc MDIO bus driver")
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Timur Tabi says:
====================
net: qcom/emac: add the last ethtool functions
These two patches implement the remaining two ethtool functions that
are of interest to the Qualcomm EMAC driver. These are the last
patches that will be submitted for the 4.11 merge window.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement the set_ringparam method, which allows the user to specify
the size of the TX and RX descriptor rings. The values are constrained
to the limits of the hardware.
Since the driver does not use separate queues for mini or jumbo frames,
attempts to set those values are rejected.
If the interface is already running when the setting is changed, then
the interface is reset.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement the get_regs_len and get_regs ethtool methods. The driver
returns the values of selected hardware registers.
The make the register offsets known to emac_ethtool, the the register
offset macros are all combined into one header file. They were
inexplicably and arbitrarily split between two files.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The other instances of this structure got removed along with the MDIO
device change, but this one was left behind and needs to be removed
as well:
arch/arm/mach-orion5x/wnr854t-setup.c:109:44: error: 'wnr854t_switch_plat_data' defined but not used [-Werror=unused-variable]
static struct dsa_platform_data __initdata wnr854t_switch_plat_data = {
Fixes: 575e93f7b5e6 ("ARM: orion: Register DSA switch as a MDIO device")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some TI platforms, specifically those in the am33xx, am43xx, dra7xx, and
am57xx families of SoCs can make use of the ti-cpufreq driver to
selectively enable OPPs based on the exact configuration in use. The
ti-cpufreq is given the responsibility of creating the cpufreq-dt
platform device when the driver is in use so drop am33xx and dra7xx
from the cpufreq-dt-platdev driver so it is not created twice.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Some TI SoCs, like those in the AM335x, AM437x, DRA7x, and AM57x families,
have different OPPs available for the MPU depending on which specific
variant of the SoC is in use. This can be determined through use of the
revision and an eFuse register present in the silicon. Introduce a
ti-cpufreq driver that can read the aformentioned values and provide
them as version matching data to the opp framework. Through this the
opp-supported-hw dt binding that is part of the operating-points-v2
table can be used to indicate availability of OPPs for each device.
This driver also creates the "cpufreq-dt" platform_device after passing
the version matching data to the OPP framework so that the cpufreq-dt
handles the actual cpufreq implementation. Even without the necessary
data to pass the version matching data the driver will still create this
device to maintain backwards compatibility with operating-points v1
tables.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Xin Long says:
====================
sctp: add sender-side procedures for stream reconf asoc reset and add streams
Patch 4/6 is to implement sender-side procedures for the SSN/TSN Reset
Request Parameter described in rfc6525 section 5.1.4, patch 3/6 is
ahead of it to define a function to make the request chunk for it.
Patch 6/6 is to implement sender-side procedures for the Add Incoming
and Outgoing Streams Request Parameter Request Parameter described in
rfc6525 section 5.1.5 and 5.1.6, patch 5/6 is ahead of it to define a
function to make the request chunk for it.
Patch 2/6 is a fix to recover streams states when it fails to send
request and Patch 1/6 is to drop some unncessary __packed from some
old structures.
v1->v2:
- put these into a smaller group.
- rename some temporary variables in the codes.
- rename the titles of the commits and improve some changelogs.
v2->v3:
- re-split the patchset and make sure it has no dead codes for review.
- move some codes into stream.c from socket.c.
v3->v4:
- add one more patch to fix a send reset stream request issue.
- doing actual work only when request is sent successfully.
- reduce some indents in sctp_send_add_streams.
v4->v5:
- close streams before sending request and recover them when sending
fails in patch 1/5 and patch 3/5
v5->v6:
- add patch 1/6 to drop some unncessary __packed from some old structures.
- remove __packed from some new structures in patch 3/6 and 5/6.
- define unsigned int outcnt and incnt to make codes smaller in patch 6/6.
- use krealloc instead of kcalloc and remove ksize check in patch 6/6, as
ksize check is acutally used in krealloc already.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Request Parameter
This patch is to implement Sender-Side Procedures for the Add
Outgoing and Incoming Streams Request Parameter described in
rfc6525 section 5.1.5-5.1.6.
It is also to add sockopt SCTP_ADD_STREAMS in rfc6525 section
6.3.4 for users.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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request chunk
This patch is to define Add Incoming/Outgoing Streams Request
Parameter described in rfc6525 section 4.5 and 4.6. They can
be in one same chunk trunk as rfc6525 section 3.1-7 describes,
so make them in one function.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to implement Sender-Side Procedures for the SSN/TSN
Reset Request Parameter descibed in rfc6525 section 5.1.4.
It is also to add sockopt SCTP_RESET_ASSOC in rfc6525 section 6.3.3
for users.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to define SSN/TSN Reset Request Parameter described
in rfc6525 section 4.3.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now when sending stream reset request, it closes the streams to
block further xmit of data until this request is completed, then
calls sctp_send_reconf to send the chunk.
But if sctp_send_reconf returns err, and it doesn't recover the
streams' states back, which means the request chunk would not be
queued and sent, so the asoc will get stuck, streams are closed
and no packet is even queued.
This patch is to fix it by recovering the streams' states when
it fails to send the request, it is also to fix a return value.
Fixes: 7f9d68ac944e ("sctp: implement sender-side procedures for SSN Reset Request Parameter")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 85c727b59483 ("sctp: drop __packed from almost all SCTP structures")
has removed __packed from almost all SCTP structures. But there still are
three structures where it should be dropped.
This patch is to remove it from some stream reconf structures.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the device tree bindings document for the TI CPUFreq/OPP driver
on AM33xx, AM43xx, DRA7xx, and AM57xx SoCs. The operating-points-v2
binding allows us to provide an opp-supported-hw property for each OPP
to define when it is available. This driver is responsible for reading
and parsing registers to determine which OPPs can be selectively enabled
based on the specific SoC in use by matching against the opp-supported-hw
data.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Rename _of_get_opp_desc_node to dev_pm_opp_of_get_opp_desc_node and add it
to include/linux/pm_opp.h to allow other drivers, such as platform OPP
and cpufreq drivers, to make use of it.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Edward Cree says:
====================
sfc: more encap offloads
This patch series adds support for RX checksum offload of encapsulated packets.
It also adds support for configuring the hardware's lists of UDP ports used for
VXLAN and GENEVE encapsulation offloads. Since changing these lists causes the
MC to reboot, the driver has been hardened against reboots, which used to be
considered an exceptional occurrence but are now normal.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement ndo_udp_tunnel_{add,del} to update the NIC's list of VXLAN and
GENEVE UDP ports. Also reset the port list to empty on driver load and
on driver unload, with appropriate flag set on the unload case.
These port numbers are used for RX inner checksum offload, and in future
will also be used for TX inner checksum offload and encapsulated TSO.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This function wasn't being called in this particular case when the MC
reboots. This caused resource reallocations to not be handled properly
and often ended up disabling the interface.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This is mainly to prepare for a future overlay networking patch that
could cause an MC reset at probe time if the UDP tunnel port list is
set immediately upon driver load.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set the csum_level for encapsulated packets where the encapsulation
type, l3 class and l4 class are sets that need it.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for RX checksum offload of encapsulated packets. This
essentially just means paying attention to the inner checksum flags
in the RX event, and if *either* checksum flag indicates a fail then
don't tell the kernel that checksum offload was successful.
Also, count these checksum errors and export the counts to ethtool -S.
Test the most common "good" case of RX events with a single bitmask
instead of a series of ifs. Move the more specific error checking
in to a separate function for clarity, and don't use unlikely() there
since we know at least one of the bits is bad.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In function igmpv3/mld_add_delrec() we allocate pmc and put it in
idev->mc_tomb, so we should free it when we don't need it in del_delrec().
But I removed kfree(pmc) incorrectly in latest two patches. Now fix it.
Fixes: 24803f38a5c0 ("igmp: do not remove igmp souce list info when ...")
Fixes: 1666d49e1d41 ("mld: do not remove mld souce list info when ...")
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This fixes a crash when running out of grant refs when creating many
queues across many netdevs.
* If creating queues fails (i.e. there are no grant refs available),
call xenbus_dev_fatal() to ensure that the xenbus device is set to the
closed state.
* If no queues are created, don't call xennet_disconnect_backend as
netdev->real_num_tx_queues will not have been set correctly.
* If setup_netfront() fails, ensure that all the queues created are
cleaned up, not just those that have been set up.
* If any queues were set up and an error occurs, call
xennet_destroy_queues() to clean up the napi context.
* If any fatal error occurs, unregister and destroy the netdev to avoid
leaving around a half setup network device.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Stefan Brüns says:
====================
Fixes for sierra_net driver
When trying to initiate a dual-stack (ipv4v6) connection, a MC7710, FW
version SWI9200X_03.05.24.00ap answers with an unsupported LSI. Add support
for this LSI.
Also the link_type should be ignored when going idle, otherwise the modem
is stuck in a bad link state.
Tested on MC7710, T-Mobile DE, APN internet.telekom, IPv4v6 PDP type. Both
IPv4 and IPv6 connections work.
v2: Do not overwrite protocol field in rx_fixup
v3: Remove leftover struct ethhdr *eth declaration
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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When the context is deactivated, the link_type is set to 0xff, which
triggers a warning message, and results in a wrong link status, as
the LSI is ignored.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If a context is configured as dualstack ("IPv4v6"), the modem indicates
the context activation with a slightly different indication message.
The dual-stack indication omits the link_type (IPv4/v6) and adds
additional address fields.
IPv6 LSIs are identical to IPv4 LSIs, but have a different link type.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With hopefully most/all users of module.h that were looking for
exception table functions moved over to the new extable.h header,
we can remove the back-compat include that let us transition
without introducing build regressions.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Jessica Yu <jeyu@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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These files were including module.h for exception table related
functions. We've now separated that content out into its own file
"extable.h" so now move over to that and where possible, avoid all
the extra header content in module.h that we don't really need to
compile these non-modular files.
Note:
init/main.c still needs module.h for __init_or_module
kernel/extable.c still needs module.h for is_module_text_address
...and so we don't get the benefit of removing module.h from the cpp
feed for these two files, unlike the almost universal 1:1 exchange
of module.h for extable.h we were able to do in the arch dirs.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Jessica Yu <jeyu@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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Dmitry reported a kernel warning:
WARNING: CPU: 3 PID: 2936 at net/kcm/kcmsock.c:627
kcm_write_msgs+0x12e3/0x1b90 net/kcm/kcmsock.c:627
CPU: 3 PID: 2936 Comm: a.out Not tainted 4.10.0-rc6+ #209
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:15 [inline]
dump_stack+0x2ee/0x3ef lib/dump_stack.c:51
panic+0x1fb/0x412 kernel/panic.c:179
__warn+0x1c4/0x1e0 kernel/panic.c:539
warn_slowpath_null+0x2c/0x40 kernel/panic.c:582
kcm_write_msgs+0x12e3/0x1b90 net/kcm/kcmsock.c:627
kcm_sendmsg+0x163a/0x2200 net/kcm/kcmsock.c:1029
sock_sendmsg_nosec net/socket.c:635 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:645
sock_write_iter+0x326/0x600 net/socket.c:848
new_sync_write fs/read_write.c:499 [inline]
__vfs_write+0x483/0x740 fs/read_write.c:512
vfs_write+0x187/0x530 fs/read_write.c:560
SYSC_write fs/read_write.c:607 [inline]
SyS_write+0xfb/0x230 fs/read_write.c:599
entry_SYSCALL_64_fastpath+0x1f/0xc2
when calling syscall(__NR_write, sock2, 0x208aaf27ul, 0x0ul) on a KCM
seqpacket socket. It appears that kcm_sendmsg() does not handle len==0
case correctly, which causes an empty skb is allocated and queued.
Fix this by skipping the skb allocation for len==0 case.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The commit 90c311b0eeea ("xen-netfront: Fix Rx stall during network
stress and OOM") caused the refill timer to be triggerred almost on
all invocations of xennet_alloc_rx_buffers for certain workloads.
This reworks the fix by reverting to the old behaviour and taking into
consideration the skb allocation failure. Refill timer is now triggered
on insufficient requests or skb allocation failure.
Signed-off-by: Vineeth Remanan Pillai <vineethp@amazon.com>
Fixes: 90c311b0eeea (xen-netfront: Fix Rx stall during network stress and OOM)
Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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