Fix GUE_PFLAG_REMCSUM to use "U" cast to avoid shifting signed
32-bit value by 31 bits problem.
Signed-off-by: Vandana BN <bnvandana@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix DST_FEATURE_ECN_CA to use "U" cast to avoid shifting signed
32-bit value by 31 bits problem.
Signed-off-by: Vandana BN <bnvandana@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
default_ttl should be integer instead of bool
Reported-by: Ying Xu <yinxu@redhat.com>
Fixes: a59166e470 ("mpls: allow TTL propagation from IP packets to be configured")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Skbs may have their checksum value populated by HW. If this is a checksum
calculated over the entire packet then the CHECKSUM_COMPLETE field is
marked. Changes to the data pointer on the skb throughout the network
stack still try to maintain this complete csum value if it is required
through functions such as skb_postpush_rcsum.
The MPLS actions in Open vSwitch modify a CHECKSUM_COMPLETE value when
changes are made to packet data without a push or a pull. This occurs when
the ethertype of the MAC header is changed or when MPLS lse fields are
modified.
The modification is carried out using the csum_partial function to get the
csum of a buffer and add it into the larger checksum. The buffer is an
inversion of the data to be removed followed by the new data. Because the
csum is calculated over 16 bits and these values align with 16 bits, the
effect is the removal of the old value from the CHECKSUM_COMPLETE and
addition of the new value.
However, the csum fed into the function and the outcome of the
calculation are also inverted. This would only make sense if it was the
new value rather than the old that was inverted in the input buffer.
Fix the issue by removing the bit inverts in the csum_partial calculation.
The bug was verified and the fix tested by comparing the folded value of
the updated CHECKSUM_COMPLETE value with the folded value of a full
software checksum calculation (reset skb->csum to 0 and run
skb_checksum_complete(skb)). Prior to the fix the outcomes differed but
after they produce the same result.
Fixes: 25cd9ba0ab ("openvswitch: Add basic MPLS support to kernel")
Fixes: bc7cc5999f ("openvswitch: update checksum in {push,pop}_mpls")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan says:
====================
bnxt_en: Bug fixes.
Miscellaneous bug fix patches, including two resource handling fixes for
the RDMA driver, a PCI shutdown patch to add pci_disable_device(), a patch
to fix ethtool selftest crash, and the last one suppresses an unnecessry
error message.
Please also queue patches 1, 2, and 3 for -stable. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Some firmware versions do not support this so use the silent variant
to send the message to firmware to suppress the harmless error. This
error message is unnecessarily alarming the user.
Fixes: afdc8a8484 ("bnxt_en: Add DCBNL DSCP application protocol support.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In an earlier commit to improve NQ reservations on 57500 chips, we
set the resv_irqs on the 57500 VFs to the fixed value assigned by
the PF regardless of how many are actually used. The current
code assumes that resv_irqs minus the ones used by the network driver
must be the ones for the RDMA driver. This is no longer true and
we may return more MSIX vectors than requested, causing inconsistency.
Fix it by capping the value.
Fixes: 01989c6b69 ("bnxt_en: Improve NQ reservations.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current logic assumes that the RDMA driver uses one statistics
context adjacent to the ones used by the network driver. This
assumption is not true and the statistics context used by the
RDMA driver is tied to its MSIX base vector. This wrong assumption
can cause RDMA driver failure after changing ethtool rings on the
network side. Fix the statistics reservation logic accordingly.
Fixes: 780baad44f ("bnxt_en: Reserve 1 stat_ctx for RDMA driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After ethtool loopback packet tests, we re-open the nic for the next
IRQ test. If the open fails, we must not proceed with the IRQ test
or we will crash with NULL pointer dereference. Fix it by checking
the bnxt_open_nic() return code before proceeding.
Reported-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>
Fixes: 67fea463fd ("bnxt_en: Add interrupt test to ethtool -t selftest.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some chips with older firmware can continue to perform DMA read from
context memory even after the memory has been freed. In the PCI shutdown
method, we need to call pci_disable_device() to shutdown DMA to prevent
this DMA before we put the device into D3hot. DMA memory request in
D3hot state will generate PCI fatal error. Similarly, in the driver
remove method, the context memory should only be freed after DMA has
been shutdown for correctness.
Fixes: 98f04cf0f1 ("bnxt_en: Check context memory requirements from firmware.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a 1ms delay after reset deactivation. Otherwise the chip returns
bogus ID value. This is observed with 88E6390 (Peridot) chip.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently bnx2x ptp worker tries to read a register with timestamp
information in case of TX packet timestamping and in case it fails,
the routine reschedules itself indefinitely. This was reported as a
kworker always at 100% of CPU usage, which was narrowed down to be
bnx2x ptp_task.
By following the ioctl handler, we could narrow down the problem to
an NTP tool (chrony) requesting HW timestamping from bnx2x NIC with
RX filter zeroed; this isn't reproducible for example with ptp4l
(from linuxptp) since this tool requests a supported RX filter.
It seems NIC FW timestamp mechanism cannot work well with
RX_FILTER_NONE - driver's PTP filter init routine skips a register
write to the adapter if there's not a supported filter request.
This patch addresses the problem of bnx2x ptp thread's everlasting
reschedule by retrying the register read 10 times; between the read
attempts the thread sleeps for an increasing amount of time starting
in 1ms to give FW some time to perform the timestamping. If it still
fails after all retries, we bail out in order to prevent an unbound
resource consumption from bnx2x.
The patch also adds an ethtool statistic for accounting the skipped
TX timestamp packets and it reduces the priority of timestamping
error messages to prevent log flooding. The code was tested using
both linuxptp and chrony.
Reported-and-tested-by: Przemyslaw Hausman <przemyslaw.hausman@canonical.com>
Suggested-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Harini Katakam says:
====================
Sub ns increment fixes in Macb PTP
The subns increment register fields are not captured correctly in the
driver. Fix the same and also increase the subns incr resolution.
Sub ns resolution was increased to 24 bits in r1p06f2 version. To my
knowledge, this PTP driver, with its current BD time stamp
implementation, is only useful to that version or above. So, I have
increased the resolution unconditionally. Please let me know if there
is any IP versions incompatible with this - there is no register to
obtain this information from.
Changes from RFC:
None
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The subns increment register has 24 bits as follows:
RegBit[15:0] = Subns[23:8]; RegBit[31:24] = Subns[7:0]
Fix the same in the driver and increase sub ns resolution to the
best capable, 24 bits. This should be the case on all GEM versions
that this PTP driver supports.
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The scaled ppm parameter passed to _adjfine() contains a 16 bit
fraction. This just happens to be the same as SUBNSINCR_SIZE now.
Hence define this separately.
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shifting signed 32-bit value by 31 bits is undefined. Changing most
significant bit to unsigned.
Changes included in v2:
- use subsystem specific subject lines
- CC required mailing lists
Signed-off-by: Jiunn Chang <c0d1n61at3@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
netfilter did not expect that skb_dst_force() can cause skb to lose its
dst entry.
I got a bug report with a skb->dst NULL dereference in netfilter
output path. The backtrace contains nf_reinject(), so the dst might have
been cleared when skb got queued to userspace.
Other users were fixed via
if (skb_dst(skb)) {
skb_dst_force(skb);
if (!skb_dst(skb))
goto handle_err;
}
But I think its preferable to make the 'dst might be cleared' part
of the function explicit.
In netfilter case, skb with a null dst is expected when queueing in
prerouting hook, so drop skb for the other hooks.
v2:
v1 of this patch returned true in case skb had no dst entry.
Eric said:
Say if we have two skb_dst_force() calls for some reason
on the same skb, only the first one will return false.
This now returns false even when skb had no dst, as per Erics
suggestion, so callers might need to check skb_dst() first before
skb_dst_force().
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now when sctp_connect() is called with a wrong sa_family, it binds
to a port but doesn't set bp->port, then sctp_get_af_specific will
return NULL and sctp_connect() returns -EINVAL.
Then if sctp_bind() is called to bind to another port, the last
port it has bound will leak due to bp->port is NULL by then.
sctp_connect() doesn't need to bind ports, as later __sctp_connect
will do it if bp->port is NULL. So remove it from sctp_connect().
While at it, remove the unnecessary sockaddr.sa_family len check
as it's already done in sctp_inet_connect.
Fixes: 644fbdeacf ("sctp: fix the issue that flags are ignored when using kernel_connect")
Reported-by: syzbot+079bf326b38072f849d9@syzkaller.appspotmail.com
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>
The Header Parser allows identifying various fields in the packet
headers, used for various kind of filtering and classification
steps.
This is a re-entrant process, where the offset in the packet header
depends on the previous lookup results. This offset is represented in
the SRAM results of the TCAM, as a shift to be operated.
This shift can be negative in some cases, such as in IPv6 parsing.
This commit prevents overriding the sign bit when setting the shift
value, which could cause instabilities when parsing IPv6 flows.
Fixes: 3f518509de ("ethernet: Add new driver for Marvell Armada 375 network unit")
Suggested-by: Alan Winkowski <walan@marvell.com>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Clarify the validate() behaviour in a few cases which weren't mentioned
in the documentation, but which are necessary for users to get the
correct behaviour.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Assign OF node to CPSW slave devices, otherwise it is not possible to
bind e.g. DSA switch to them. Without this patch, the DSA code tries
to find the ethernet device by OF match, but fails to do so because
the slave device has NULL OF node.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter fixes for net:
1) Fix memleak reported by syzkaller when registering IPVS hooks,
patch from Julian Anastasov.
2) Fix memory leak in start_sync_thread, also from Julian.
3) Fix conntrack deletion via ctnetlink, from Felix Kaechele.
4) Fix reject for ICMP due to incorrect checksum handling, from
He Zhe.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
A b53 device may configured through an external EEPROM like the switch
device on the Lamobo R1 router board. The configuration of a port may
therefore differ from the reset configuration of the switch.
The switch configuration reported by the DSA subsystem is different until
the port is configured by DSA i.e. a port can be active, while the DSA
subsystem reports the port is inactive. Disable all ports and not only
the unused ones to put all ports into a well defined state.
Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since v5.1-rc1, some types of packets do not get unreachable reply with the
following iptables setting. Fox example,
$ iptables -A INPUT -p icmp --icmp-type 8 -j REJECT
$ ping 127.0.0.1 -c 1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
— 127.0.0.1 ping statistics —
1 packets transmitted, 0 received, 100% packet loss, time 0ms
We should have got the following reply from command line, but we did not.
From 127.0.0.1 icmp_seq=1 Destination Port Unreachable
Yi Zhao reported it and narrowed it down to:
7fc3822536 ("netfilter: reject: skip csum verification for protocols that don't support it"),
This is because nf_ip_checksum still expects pseudo-header protocol type 0 for
packets that are of neither TCP or UDP, and thus ICMP packets are mistakenly
treated as TCP/UDP.
This patch corrects the conditions in nf_ip_checksum and all other places that
still call it with protocol 0.
Fixes: 7fc3822536 ("netfilter: reject: skip csum verification for protocols that don't support it")
Reported-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: He Zhe <zhe.he@windriver.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* 1<<31 is undefined, use 1U<<31 in nl80211.h UAPI
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Merge tag 'mac80211-for-davem-2019-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Just a single patch:
* 1<<31 is undefined, use 1U<<31 in nl80211.h UAPI
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
- fix a leaked TVLV handler which wasn't unregistered, by Jeremy Sowden
- fix duplicated OGMs when interfaces are set UP, by Sven Eckelmann
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Merge tag 'batadv-net-for-davem-20190627' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
Here are some batman-adv bugfixes:
- fix a leaked TVLV handler which wasn't unregistered, by Jeremy Sowden
- fix duplicated OGMs when interfaces are set UP, by Sven Eckelmann
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Hopefully the last set of fixes for 5.2. Nothing special this around,
only small fixes and support for new cards.
iwlwifi
* add new cards for 22000 series and smaller fixes
wl18xx
* fix a clang warning about unused variables
mwifiex
* properly handle small vendor IEs (a regression from the recent
security fix)
ath
* fix few SPDX tags
mt76
* fix A-MSDU aggregation which got broken in v5.2-rc1
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Merge tag 'wireless-drivers-for-davem-2019-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 5.2
Hopefully the last set of fixes for 5.2. Nothing special this around,
only small fixes and support for new cards.
iwlwifi
* add new cards for 22000 series and smaller fixes
wl18xx
* fix a clang warning about unused variables
mwifiex
* properly handle small vendor IEs (a regression from the recent
security fix)
ath
* fix few SPDX tags
mt76
* fix A-MSDU aggregation which got broken in v5.2-rc1
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Shifting signed 32-bit value by 31 bits is undefined. Changing most
significant bit to unsigned.
Signed-off-by: Jiunn Chang <c0d1n61at3@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
- Do a DT/firmware lookup in clk_core_get() even when the DT index is a
nonsensical value
- Fix some clk data typos in the Amlogic DT headers/code
- Avoid returning junk in the TI clk driver when an invalid clk is
looked for
- Fix dividers for the emac clks on Stratix10 SoCs
- Fix default HDA rates on Tegra210 to correct distorted audio
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A handful of clk driver fixes and one core framework fix
- Do a DT/firmware lookup in clk_core_get() even when the DT index is
a nonsensical value
- Fix some clk data typos in the Amlogic DT headers/code
- Avoid returning junk in the TI clk driver when an invalid clk is
looked for
- Fix dividers for the emac clks on Stratix10 SoCs
- Fix default HDA rates on Tegra210 to correct distorted audio"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: socfpga: stratix10: fix divider entry for the emac clocks
clk: Do a DT parent lookup even when index < 0
clk: tegra210: Fix default rates for HDA clocks
clk: ti: clkctrl: Fix returning uninitialized data
clk: meson: meson8b: fix a typo in the VPU parent names array variable
clk: meson: fix MPLL 50M binding id typo
init code.
- Fix DM log-writes target's handling of super block sectors so updates
are made in order through use of completion.
- Fix DM core's argument splitting code to avoid undefined behaviour
reported as a side-effect of UBSAN analysis on ppc64le.
- Fix DM verity target to limit the amount of error messages that can
result from a corrupt block being found.
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Merge tag 'for-5.2/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix incorrect uses of kstrndup and DM logging macros in DM's early
init code.
- Fix DM log-writes target's handling of super block sectors so updates
are made in order through use of completion.
- Fix DM core's argument splitting code to avoid undefined behaviour
reported as a side-effect of UBSAN analysis on ppc64le.
- Fix DM verity target to limit the amount of error messages that can
result from a corrupt block being found.
* tag 'for-5.2/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm verity: use message limit for data block corruption message
dm table: don't copy from a NULL pointer in realloc_argv()
dm log writes: make sure super sector log updates are written in order
dm init: remove trailing newline from calls to DMERR() and DMINFO()
dm init: fix incorrect uses of kstrndup()
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Merge tag 'for-linus-20190627' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux
Pull pidfd fixes from Christian Brauner:
"Userspace tools and libraries such as strace or glibc need a cheap and
reliable way to tell whether CLONE_PIDFD is supported. The easiest way
is to pass an invalid fd value in the return argument, perform the
syscall and verify the value in the return argument has been changed
to a valid fd.
However, if CLONE_PIDFD is specified we currently check if pidfd == 0
and return EINVAL if not.
The check for pidfd == 0 was originally added to enable us to abuse
the return argument for passing additional flags along with
CLONE_PIDFD in the future.
However, extending legacy clone this way would be a terrible idea and
with clone3 on the horizon and the ability to reuse CLONE_DETACHED
with CLONE_PIDFD there's no real need for this clutch. So remove the
pidfd == 0 check and help userspace out.
Also, accordig to Al, anon_inode_getfd() should only be used past the
point of no failure and ksys_close() should not be used at all since
it is far too easy to get wrong. Al's motto being "basically, once
it's in descriptor table, it's out of your control". So Al's patch
switches back to what we already had in v1 of the original patchset
and uses a anon_inode_getfile() + put_user() + fd_install() sequence
in the success path and a fput() + put_unused_fd() in the failure
path.
The other two changes should be trivial"
* tag 'for-linus-20190627' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux:
proc: remove useless d_is_dir() check
copy_process(): don't use ksys_close() on cleanups
samples: make pidfd-metadata fail gracefully on older kernels
fork: don't check parent_tidptr with CLONE_PIDFD
Pull HID fixes from Jiri Kosina:
- fix for one corner case in HID++ protocol with respect to handling
very long reports, from Hans de Goede
- power management fix in Intel-ISH driver, from Hyungwoo Yang
- use-after-free fix in Intel-ISH driver, from Dan Carpenter
- a couple of new device IDs/quirks from Kai-Heng Feng, Kyle Godbey and
Oleksandr Natalenko
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: intel-ish-hid: fix wrong driver_data usage
HID: multitouch: Add pointstick support for ALPS Touchpad
HID: logitech-dj: Fix forwarding of very long HID++ reports
HID: uclogic: Add support for Huion HS64 tablet
HID: chicony: add another quirk for PixArt mouse
HID: intel-ish-hid: Fix a use after free in load_fw_from_host()
A smaller batch of fixes, nothing that stands out as risky or scary.
Mostly DTS tweaks for a few issues:
- GPU fixlets for Meson
- CPU idle fix for LS1028A
- PWM interrupt fixes for i.MX6UL
Also, enable a driver (FSL_EDMA) on arm64 defconfig, and a warning and
two MAINTAINER tweaks.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A smaller batch of fixes, nothing that stands out as risky or scary.
Mostly DTS tweaks for a few issues:
- GPU fixlets for Meson
- CPU idle fix for LS1028A
- PWM interrupt fixes for i.MX6UL
Also, enable a driver (FSL_EDMA) on arm64 defconfig, and a warning and
two MAINTAINER tweaks"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: dts: imx6ul: fix PWM[1-4] interrupts
ARM: omap2: remove incorrect __init annotation
ARM: dts: gemini Fix up DNS-313 compatible string
ARM: dts: Blank D-Link DIR-685 console
arm64: defconfig: Enable FSL_EDMA driver
arm64: dts: ls1028a: Fix CPU idle fail.
MAINTAINERS: BCM53573: Add internal Broadcom mailing list
MAINTAINERS: BCM2835: Add internal Broadcom mailing list
ARM: dts: meson8b: fix the operating voltage of the Mali GPU
ARM: dts: meson8b: drop undocumented property from the Mali GPU node
ARM: dts: meson8: fix GPU interrupts and drop an undocumented property
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Merge tag 'afs-fixes-20190620' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull AFS fixes from David Howells:
"The in-kernel AFS client has been undergoing testing on opendev.org on
one of their mirror machines. They are using AFS to hold data that is
then served via apache, and Ian Wienand had reported seeing oopses,
spontaneous machine reboots and updates to volumes going missing. This
patch series appears to have fixed the problem, very probably due to
patch (2), but it's not 100% certain.
(1) Fix the printing of the "vnode modified" warning to exclude checks
on files for which we don't have a callback promise from the
server (and so don't expect the server to tell us when it
changes).
Without this, for every file or directory for which we still have
an in-core inode that gets changed on the server, we may get a
message logged when we next look at it. This can happen in bulk
if, for instance, someone does "vos release" to update a R/O
volume from a R/W volume and a whole set of files are all changed
together.
We only really want to log a message if the file changed and the
server didn't tell us about it or we failed to track the state
internally.
(2) Fix accidental corruption of either afs_vlserver struct objects or
the the following memory locations (which could hold anything).
The issue is caused by a union that points to two different
structs in struct afs_call (to save space in the struct). The call
cleanup code assumes that it can simply call the cleanup for one
of those structs if not NULL - when it might be actually pointing
to the other struct.
This means that every Volume Location RPC op is going to corrupt
something.
(3) Fix an uninitialised spinlock. This isn't too bad, it just causes
a one-off warning if lockdep is enabled when "vos release" is
called, but the spinlock still behaves correctly.
(4) Fix the setting of i_block in the inode. This causes du, for
example, to produce incorrect results, but otherwise should not be
dangerous to the kernel"
* tag 'afs-fixes-20190620' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix setting of i_blocks
afs: Fix uninitialised spinlock afs_volume::cb_break_lock
afs: Fix vlserver record corruption
afs: Fix over zealous "vnode modified" warnings
Pull networking fixes from David Miller:
1) Fix ppp_mppe crypto soft dependencies, from Takashi Iawi.
2) Fix TX completion to be finite, from Sergej Benilov.
3) Use register_pernet_device to avoid a dst leak in tipc, from Xin
Long.
4) Double free of TX cleanup in Dirk van der Merwe.
5) Memory leak in packet_set_ring(), from Eric Dumazet.
6) Out of bounds read in qmi_wwan, from Bjørn Mork.
7) Fix iif used in mcast/bcast looped back packets, from Stephen
Suryaputra.
8) Fix neighbour resolution on raw ipv6 sockets, from Nicolas Dichtel.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (25 commits)
af_packet: Block execution of tasks waiting for transmit to complete in AF_PACKET
sctp: change to hold sk after auth shkey is created successfully
ipv6: fix neighbour resolution with raw socket
ipv6: constify rt6_nexthop()
net: dsa: microchip: Use gpiod_set_value_cansleep()
net: aquantia: fix vlans not working over bridged network
ipv4: reset rt_iif for recirculated mcast/bcast out pkts
team: Always enable vlan tx offload
net/smc: Fix error path in smc_init
net/smc: hold conns_lock before calling smc_lgr_register_conn()
bonding: Always enable vlan tx offload
net/ipv6: Fix misuse of proc_dointvec "skip_notify_on_dev_down"
ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop
qmi_wwan: Fix out-of-bounds read
tipc: check msg->req data len in tipc_nl_compat_bearer_disable
net: macb: do not copy the mac address if NULL
net/packet: fix memory leak in packet_set_ring()
net/tls: fix page double free on TX cleanup
net/sched: cbs: Fix error path of cbs_module_init
tipc: change to use register_pernet_device
...
Commit f8f527b16d ("mt76: usb: use EP max packet aligned buffer sizes
for rx") breaks A-MSDU support. When A-MSDU is enable the device can
receive frames up to q->buf_size but they will be discarded in
mt76u_process_rx_entry since there is no enough room for
skb_shared_info. Fix the issue reallocating the skb and copying in the
linear area the first 128B of the received frames and in the frag_list
the remaining part
Fixes: f8f527b16d ("mt76: usb: use EP max packet aligned buffer sizes for rx")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Remove the d_is_dir() check from tgid_pidfd_to_pid().
It is pointless since you should never get &proc_tgid_base_operations
for f_op on a non-directory.
Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Christian Brauner <christian@brauner.io>
anon_inode_getfd() should be used *ONLY* in situations when we are
guaranteed to be past the last failure point (including copying the
descriptor number to userland, at that). And ksys_close() should
not be used for cleanups at all.
anon_inode_getfile() is there for all nontrivial cases like that.
Just use that...
Fixes: b3e5838252 ("clone: add CLONE_PIDFD")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Christian Brauner <christian@brauner.io>
When an application is run that:
a) Sets its scheduler to be SCHED_FIFO
and
b) Opens a memory mapped AF_PACKET socket, and sends frames with the
MSG_DONTWAIT flag cleared, its possible for the application to hang
forever in the kernel. This occurs because when waiting, the code in
tpacket_snd calls schedule, which under normal circumstances allows
other tasks to run, including ksoftirqd, which in some cases is
responsible for freeing the transmitted skb (which in AF_PACKET calls a
destructor that flips the status bit of the transmitted frame back to
available, allowing the transmitting task to complete).
However, when the calling application is SCHED_FIFO, its priority is
such that the schedule call immediately places the task back on the cpu,
preventing ksoftirqd from freeing the skb, which in turn prevents the
transmitting task from detecting that the transmission is complete.
We can fix this by converting the schedule call to a completion
mechanism. By using a completion queue, we force the calling task, when
it detects there are no more frames to send, to schedule itself off the
cpu until such time as the last transmitted skb is freed, allowing
forward progress to be made.
Tested by myself and the reporter, with good results
Change Notes:
V1->V2:
Enhance the sleep logic to support being interruptible and
allowing for honoring to SK_SNDTIMEO (Willem de Bruijn)
V2->V3:
Rearrage the point at which we wait for the completion queue, to
avoid needing to check for ph/skb being null at the end of the loop.
Also move the complete call to the skb destructor to avoid needing to
modify __packet_set_status. Also gate calling complete on
packet_read_pending returning zero to avoid multiple calls to complete.
(Willem de Bruijn)
Move timeo computation within loop, to re-fetch the socket
timeout since we also use the timeo variable to record the return code
from the wait_for_complete call (Neil Horman)
V3->V4:
Willem has requested that the control flow be restored to the
previous state. Doing so lets us eliminate the need for the
po->wait_on_complete flag variable, and lets us get rid of the
packet_next_frame function, but introduces another complexity.
Specifically, but using the packet pending count, we can, if an
applications calls sendmsg multiple times with MSG_DONTWAIT set, each
set of transmitted frames, when complete, will cause
tpacket_destruct_skb to issue a complete call, for which there will
never be a wait_on_completion call. This imbalance will lead to any
future call to wait_for_completion here to return early, when the frames
they sent may not have completed. To correct this, we need to re-init
the completion queue on every call to tpacket_snd before we enter the
loop so as to ensure we wait properly for the frames we send in this
iteration.
Change the timeout and interrupted gotos to out_put rather than
out_status so that we don't try to free a non-existant skb
Clean up some extra newlines (Willem de Bruijn)
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reported-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now in sctp_endpoint_init(), it holds the sk then creates auth
shkey. But when the creation fails, it doesn't release the sk,
which causes a sk defcnf leak,
Here to fix it by only holding the sk when auth shkey is created
successfully.
Fixes: a29a5bd4f5 ("[SCTP]: Implement SCTP-AUTH initializations.")
Reported-by: syzbot+afabda3890cc2f765041@syzkaller.appspotmail.com
Reported-by: syzbot+276ca1c77a19977c0130@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel says:
====================
ipv6: fix neighbour resolution with raw socket
The first patch prepares the fix, it constify rt6_nexthop().
The detail of the bug is explained in the second patch.
v1 -> v2:
- fix compilation warnings
- split the initial patch
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The scenario is the following: the user uses a raw socket to send an ipv6
packet, destinated to a not-connected network, and specify a connected nh.
Here is the corresponding python script to reproduce this scenario:
import socket
IPPROTO_RAW = 255
send_s = socket.socket(socket.AF_INET6, socket.SOCK_RAW, IPPROTO_RAW)
# scapy
# p = IPv6(src='fd00💯:1', dst='fd00:200::fa')/ICMPv6EchoRequest()
# str(p)
req = b'`\x00\x00\x00\x00\x08:@\xfd\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xfd\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfa\x80\x00\x81\xc0\x00\x00\x00\x00'
send_s.sendto(req, ('fd00:175::2', 0, 0, 0))
fd00:175::/64 is a connected route and fd00:200::fa is not a connected
host.
With this scenario, the kernel starts by sending a NS to resolve
fd00:175::2. When it receives the NA, it flushes its queue and try to send
the initial packet. But instead of sending it, it sends another NS to
resolve fd00:200::fa, which obvioulsy fails, thus the packet is dropped. If
the user sends again the packet, it now uses the right nh (fd00:175::2).
The problem is that ip6_dst_lookup_neigh() uses the rt6i_gateway, which is
:: because the associated route is a connected route, thus it uses the dst
addr of the packet. Let's use rt6_nexthop() to choose the right nh.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no functional change in this patch, it only prepares the next one.
rt6_nexthop() will be used by ip6_dst_lookup_neigh(), which uses const
variables.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reported-by: kbuild test robot <lkp@intel.com>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace gpiod_set_value() with gpiod_set_value_cansleep(), as the switch
reset GPIO can be connected to e.g. I2C GPIO expander and it is perfectly
fine for the kernel to sleep for a bit in ksz_switch_register().
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Cc: Woojung Huh <Woojung.Huh@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
In configuration of vlan over bridge over aquantia device
it was found that vlan tagged traffic is dropped on chip.
The reason is that bridge device enables promisc mode,
but in atlantic chip vlan filters will still apply.
So we have to corellate promisc settings with vlan configuration.
The solution is to track in a separate state variable the
need of vlan forced promisc. And also consider generic
promisc configuration when doing vlan filter config.
Fixes: 7975d2aff5 ("net: aquantia: add support of rx-vlan-filter offload")
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Multicast or broadcast egress packets have rt_iif set to the oif. These
packets might be recirculated back as input and lookup to the raw
sockets may fail because they are bound to the incoming interface
(skb_iif). If rt_iif is not zero, during the lookup, inet_iif() function
returns rt_iif instead of skb_iif. Hence, the lookup fails.
v2: Make it non vrf specific (David Ahern). Reword the changelog to
reflect it.
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should rather have vlan_tci filled all the way down
to the transmitting netdevice and let it do the hw/sw
vlan implementation.
Suggested-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun says:
====================
net/smc: fixes 2019-06-26
here are 2 small smc fixes for the net tree.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Vandana BN
Hangbin Liu
John Hurley
David S. Miller
Michael Chan
Baruch Siach
Guilherme G. Piccoli
Eric Dumazet
Harini Katakam
Jiunn Chang
Florian Westphal
Xin Long
Maxime Chevallier
Russell King
Marek Vasut
Benedikt Spranger
He Zhe
Linus Torvalds
Lorenzo Bianconi
Christian Brauner
Al Viro
Neil Horman
Nicolas Dichtel
Dmitry Bogdanov
Stephen Suryaputra
YueHaibing