Petr Machata [Sun, 5 Aug 2018 06:03:06 +0000 (09:03 +0300)]
mlxsw: reg: Add QoS Switch Traffic Class Table is Multicast-Aware Register
This register configures if the Switch Priority to Traffic Class mapping
is based on Multicast packet indication. If so, then multicast packets
will get a Traffic Class that is plus (cap_max_tclass_data/2) the value
configured by QTCT.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gustavo A. R. Silva [Sun, 5 Aug 2018 02:42:05 +0000 (21:42 -0500)]
virtio-net: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID:
1402059 ("Missing break in switch")
Addresses-Coverity-ID:
1402060 ("Missing break in switch")
Addresses-Coverity-ID:
1402061 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Fri, 3 Aug 2018 19:27:55 +0000 (22:27 +0300)]
net: sched: cls_flower: Fix an error code in fl_tmplt_create()
We forgot to set the error code on this path, so we return NULL instead
of an error pointer. In the current code kzalloc() won't fail for small
allocations so this doesn't really affect runtime.
Fixes: b95ec7eb3b4d ("net: sched: cls_flower: implement chain templates")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 3 Aug 2018 07:45:21 +0000 (15:45 +0800)]
net: check extack._msg before print
dev_set_mtu_ext is able to fail with a valid mtu value, at that
condition, extack._msg is not set and random since it is in stack,
then kernel will crash when print it.
Fixes: 7a4c53bee3324a ("net: report invalid mtu value via netlink extack")
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Westphal [Fri, 3 Aug 2018 00:22:20 +0000 (02:22 +0200)]
ipv6: defrag: drop non-last frags smaller than min mtu
don't bother with pathological cases, they only waste cycles.
IPv6 requires a minimum MTU of 1280 so we should never see fragments
smaller than this (except last frag).
v3: don't use awkward "-offset + len"
v2: drop IPv4 part, which added same check w. IPV4_MIN_MTU (68).
There were concerns that there could be even smaller frags
generated by intermediate nodes, e.g. on radio networks.
Cc: Peter Oskolkov <posk@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 6 Aug 2018 00:16:46 +0000 (17:16 -0700)]
Merge branch 'ip-Use-rb-trees-for-IP-frag-queue'
Peter Oskolkov says:
====================
ip: Use rb trees for IP frag queue.
This patchset
* changes IPv4 defrag behavior to match that of IPv6: overlapping
fragments now cause the whole IP datagram to be discarded (suggested
by David Miller): there are no legitimate use cases for overlapping
fragments;
* changes IPv4 defrag queue from a list to a rb tree (suggested
by Eric Dumazet): this change removes a potential attach vector.
Upcoming patches will contain similar changes for IPv6 frag queue,
as well as a comprehensive IP defrag self-test (temporarily delayed).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Peter Oskolkov [Thu, 2 Aug 2018 23:34:39 +0000 (23:34 +0000)]
ip: use rb trees for IP frag queue.
Similar to TCP OOO RX queue, it makes sense to use rb trees to store
IP fragments, so that OOO fragments are inserted faster.
Tested:
- a follow-up patch contains a rather comprehensive ip defrag
self-test (functional)
- ran neper `udp_stream -c -H <host> -F 100 -l 300 -T 20`:
netstat --statistics
Ip:
282078937 total packets received
0 forwarded
0 incoming packets discarded
946760 incoming packets delivered
18743456 requests sent out
101 fragments dropped after timeout
282077129 reassemblies required
944952 packets reassembled ok
262734239 packet reassembles failed
(The numbers/stats above are somewhat better re:
reassemblies vs a kernel without this patchset. More
comprehensive performance testing TBD).
Reported-by: Jann Horn <jannh@google.com>
Reported-by: Juha-Matti Tilli <juha-matti.tilli@iki.fi>
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Peter Oskolkov <posk@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peter Oskolkov [Thu, 2 Aug 2018 23:34:38 +0000 (23:34 +0000)]
net: modify skb_rbtree_purge to return the truesize of all purged skbs.
Tested: see the next patch is the series.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Peter Oskolkov <posk@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peter Oskolkov [Thu, 2 Aug 2018 23:34:37 +0000 (23:34 +0000)]
ip: discard IPv4 datagrams with overlapping segments.
This behavior is required in IPv6, and there is little need
to tolerate overlapping fragments in IPv4. This change
simplifies the code and eliminates potential DDoS attack vectors.
Tested: ran ip_defrag selftest (not yet available uptream).
Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Peter Oskolkov <posk@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vakul Garg [Thu, 2 Aug 2018 15:13:10 +0000 (20:43 +0530)]
net/tls: Mark the end in scatterlist table
Function zerocopy_from_iter() unmarks the 'end' in input sgtable while
adding new entries in it. The last entry in sgtable remained unmarked.
This results in KASAN error report on using apis like sg_nents(). Before
returning, the function needs to mark the 'end' in the last entry it
adds.
Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Acked-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Georg Kohmann [Thu, 2 Aug 2018 11:56:58 +0000 (13:56 +0200)]
ipv6: icmp: Updating pmtu for link local route
When a ICMPV6_PKT_TOOBIG is received from a link local address the pmtu will
be updated on a route with an arbitrary interface index. Subsequent packets
sent back to the same link local address may therefore end up not
considering the updated pmtu.
Current behavior breaks TAHI v6LC4.1.4 Reduce PMTU On-link. Referring to RFC
1981: Section 3: "Note that Path MTU Discovery must be performed even in
cases where a node "thinks" a destination is attached to the same link as
itself. In a situation such as when a neighboring router acts as proxy [ND]
for some destination, the destination can to appear to be directly
connected but is in fact more than one hop away."
Using the interface index from the incoming ICMPV6_PKT_TOOBIG when updating
the pmtu.
Signed-off-by: Georg Kohmann <geokohma@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yangbo Lu [Wed, 1 Aug 2018 10:05:54 +0000 (18:05 +0800)]
ptp_qoriq: support automatic configuration for ptp timer
This patch is to support automatic configuration for ptp timer.
If required ptp dts properties are not provided, driver could
try to calculate a set of default configurations to initialize
the ptp timer. This makes the driver work for many boards which
don't have the required ptp dts properties in current kernel.
Also the users could set dts properties by themselves according
to their requirement.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yangbo Lu [Wed, 1 Aug 2018 10:05:53 +0000 (18:05 +0800)]
powerpc/mpc85xx: add clocks property for fman ptp timer node
This patch is to add clocks property for fman ptp timer node.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yangbo Lu [Wed, 1 Aug 2018 10:05:52 +0000 (18:05 +0800)]
arm64: dts: fsl: add clocks property for fman ptp timer node
This patch is to add clocks property for fman ptp timer node.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 6 Aug 2018 00:08:27 +0000 (17:08 -0700)]
Merge branch 'bnxt_en-Updates-for-net-next'
Michael Chan says:
====================
bnxt_en: Updates for net-next.
This series includes the usual firmware spec update. The driver has
added external phy loopback test and phy setup retry logic that is
needed during hotplug. In the SRIOV space, the driver has added a
new VF resource allocation mode that requires the VF driver to
reserve resources during IFUP. IF state changes are now propagated
to firmware so that firmware can release some resources during IFDOWN.
ethtool method to get firmware core dump and hwmon temperature reading
have been added. DSCP to user priority support has been added to
the driver's DCBNL interface, and the CoS queue logic has been refined
to make sure that the special RDMA Congestion Notification hardware CoS
queue will not be used for networking traffic.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:58 +0000 (16:51 -0400)]
bnxt_en: Do not use the CNP CoS queue for networking traffic.
The CNP CoS queue is reserved for internal RDMA Congestion Notification
Packets (CNP) and should not be used for a TC. Modify the CoS queue
discovery code to skip over the CNP CoS queue and to reduce
bp->max_tc accordingly. However, if RDMA is disabled in NVRAM, the
the CNP CoS queue can be used for a TC.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:57 +0000 (16:51 -0400)]
bnxt_en: Add DCBNL DSCP application protocol support.
Expand the .ieee_setapp() and ieee_delapp() DCBNL methods to support
DSCP. This allows DSCP values to user priority mappings instead
of using VLAN priorities. Each DSCP mapping is added or deleted one
entry at a time using the firmware API. The firmware call can only be
made from a PF.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasundhara Volam [Sun, 5 Aug 2018 20:51:56 +0000 (16:51 -0400)]
bnxt_en: Add hwmon sysfs support to read temperature
Export temperature sensor reading via hwmon sysfs.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:55 +0000 (16:51 -0400)]
bnxt_en: Notify firmware about IF state changes.
Use latest firmware API to notify firmware about IF state changes.
Firmware has the option to clean up resources during IF down and
to require the driver to reserve resources again during IF up.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:54 +0000 (16:51 -0400)]
bnxt_en: Move firmware related flags to a new fw_cap field in struct bnxt.
The flags field is almost getting full. Move firmware capability flags
to a new fw_cap field to better organize these firmware flags.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:53 +0000 (16:51 -0400)]
bnxt_en: Add BNXT_NEW_RM() macro.
The BNXT_FLAG_NEW_RM flag is checked a lot in the code to determine if
the new resource manager is in effect. Define a macro to perform
this check.
Signed-off-by: Michael Chan <michael.chan@broadocm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasundhara Volam [Sun, 5 Aug 2018 20:51:52 +0000 (16:51 -0400)]
bnxt_en: Add support for ethtool get dump.
Add support to collect live firmware coredump via ethtool.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:51 +0000 (16:51 -0400)]
bnxt_en: Update RSS setup and GRO-HW logic according to the latest spec.
Set the default hash mode flag in HWRM_VNIC_RSS_CFG to signal to the
firmware that the driver is compliant with the latest spec. With
that, the firmware can return expanded RSS profile IDs that the driver
checks to setup the proper gso_type for GRO-HW packets. But instead
of checking for the new profile IDs, we check the IP_TYPE flag
in TPA_START which is more straight forward than checking a list of
profile IDs.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:50 +0000 (16:51 -0400)]
bnxt_en: Add new VF resource allocation strategy mode.
The new mode is "minimal-static" to be used when resources are more
limited to support a large number of VFs, for example The PF driver
will provision guaranteed minimum resources of 0. Each VF has no
guranteed resources until it tries to reserve resources during device
open.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:49 +0000 (16:51 -0400)]
bnxt_en: Add PHY retry logic.
During hotplug, the driver's open function can be called almost
immediately after power on reset. The PHY may not be ready and the
firmware may return failure when the driver tries to update PHY
settings. Add retry logic fired from the driver's timer to retry
the operation for 5 seconds.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:48 +0000 (16:51 -0400)]
bnxt_en: Add external loopback test to ethtool selftest.
Add code to detect firmware support for external loopback and the extra
test entry for external loopback.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:47 +0000 (16:51 -0400)]
bnxt_en: Adjust timer based on ethtool stats-block-usecs settings.
The driver gathers statistics using 2 mechanisms. Some stats are DMA'ed
directly from hardware and others are polled from the driver's timer.
Currently, we only adjust the DMA frequency based on the ethtool
stats-block-usecs setting. This patch adjusts the driver's timer
frequency as well to make everything consistent.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 5 Aug 2018 20:51:46 +0000 (16:51 -0400)]
bnxt_en: Update firmware interface version to 1.9.2.25.
New interface has firmware core dump support, new extended port
statistics, and IF state change notifications to the firmware.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 5 Aug 2018 23:25:22 +0000 (16:25 -0700)]
Merge git://git./linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for your net-next tree:
1) Support for transparent proxying for nf_tables, from Mate Eckl.
2) Patchset to add OS passive fingerprint recognition for nf_tables,
from Fernando Fernandez. This takes common code from xt_osf and
place it into the new nfnetlink_osf module for codebase sharing.
3) Lightweight tunneling support for nf_tables.
4) meta and lookup are likely going to be used in rulesets, make them
direct calls. From Florian Westphal.
A bunch of incremental updates:
5) use PTR_ERR_OR_ZERO() from nft_numgen, from YueHaibing.
6) Use kvmalloc_array() to allocate hashtables, from Li RongQing.
7) Explicit dependencies between nfnetlink_cttimeout and conntrack
timeout extensions, from Harsha Sharma.
8) Simplify NLM_F_CREATE handling in nf_tables.
9) Removed unused variable in the get element command, from
YueHaibing.
10) Expose bridge hook priorities through uapi, from Mate Eckl.
And a few fixes for previous Netfilter batch for net-next:
11) Use per-netns mutex from flowtable event, from Florian Westphal.
12) Remove explicit dependency on iptables CT target from conntrack
zones, from Florian.
13) Fix use-after-free in rmmod nf_conntrack path, also from Florian.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 5 Aug 2018 20:04:31 +0000 (13:04 -0700)]
Merge ra./pub/scm/linux/kernel/git/davem/net
Lots of overlapping changes, mostly trivial in nature.
The mlxsw conflict was resolving using the example
resolution at:
https://github.com/jpirko/linux_mlxsw/blob/combined_queue/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 5 Aug 2018 19:37:41 +0000 (12:37 -0700)]
Linux 4.18-rc8
Linus Torvalds [Sun, 5 Aug 2018 16:39:30 +0000 (09:39 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
"A single fix, which addresses boot failures on machines which do not
report EBDA correctly, which can place the trampoline into reserved
memory regions. Validating against E820 prevents that"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot/compressed/64: Validate trampoline placement against E820
Linus Torvalds [Sun, 5 Aug 2018 16:25:29 +0000 (09:25 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two oneliners addressing NOHZ failures:
- Use a bitmask to check for the pending timer softirq and not the
bit number. The existing code using the bit number checked for
the wrong bit, which caused timers to either expire late or stop
completely.
- Make the nohz evaluation on interrupt exit more robust. The
existing code did not re-arm the hardware when interrupting a
running softirq in task context (ksoftirqd or tail of
local_bh_enable()), which caused timers to either expire late
or stop completely"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
nohz: Fix missing tick reprogram when interrupting an inline softirq
nohz: Fix local_timer_softirq_pending()
Linus Torvalds [Sun, 5 Aug 2018 16:13:07 +0000 (09:13 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A set of fixes for perf:
Kernel side:
- Fix the hardcoded index of extra PCI devices on Broadwell which
caused a resource conflict and triggered warnings on CPU hotplug.
Tooling:
- Update the tools copy of several files, including perf_event.h,
powerpc's asm/unistd.h (new io_pgetevents syscall), bpf.h and x86's
memcpy_64.s (used in 'perf bench mem'), silencing the respective
warnings during the perf tools build.
- Fix the build on the alpine:edge distro"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Fix hardcoded index of Broadwell extra PCI devices
perf tools: Fix the build on the alpine:edge distro
tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
tools headers uapi: Refresh linux/bpf.h copy
tools headers powerpc: Update asm/unistd.h copy to pick new
tools headers uapi: Update tools's copy of linux/perf_event.h
Linus Torvalds [Sun, 5 Aug 2018 15:55:26 +0000 (08:55 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner:
"A single bugfix for the irq core to prevent silent data corruption and
malfunction of threaded interrupts under certain conditions"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Make force irq threading setup more robust
Linus Torvalds [Sun, 5 Aug 2018 15:20:39 +0000 (08:20 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Handle frames in error situations properly in AF_XDP, from Jakub
Kicinski.
2) tcp_mmap test case only tests ipv6 due to a thinko, fix from
Maninder Singh.
3) Session refcnt fix in l2tp_ppp, from Guillaume Nault.
4) Fix regression in netlink bind handling of multicast gruops, from
Dmitry Safonov.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
netlink: Don't shift on 64 for ngroups
net/smc: no cursor update send in state SMC_INIT
l2tp: fix missing refcount drop in pppol2tp_tunnel_ioctl()
mlxsw: core_acl_flex_actions: Remove redundant mirror resource destruction
mlxsw: core_acl_flex_actions: Remove redundant counter destruction
mlxsw: core_acl_flex_actions: Remove redundant resource destruction
mlxsw: core_acl_flex_actions: Return error for conflicting actions
selftests/bpf: update test_lwt_seg6local.sh according to iproute2
drivers: net: lmc: fix case value for target abort error
selftest/net: fix protocol family to work for IPv4.
net: xsk: don't return frames via the allocator on error
tools/bpftool: fix a percpu_array map dump problem
Linus Torvalds [Sun, 5 Aug 2018 01:34:55 +0000 (18:34 -0700)]
Merge tag 'usercopy-fix-v4.18-rc8' of git://git./linux/kernel/git/kees/linux
Pull usercopy whitelisting fix from Kees Cook:
"Bart Massey discovered that the usercopy whitelist for JFS was
incomplete: the inline inode data may intentionally "overflow" into
the neighboring "extended area", so the size of the whitelist needed
to be raised to include the neighboring field"
* tag 'usercopy-fix-v4.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
jfs: Fix usercopy whitelist for inline inode data
Linus Torvalds [Sun, 5 Aug 2018 01:30:58 +0000 (18:30 -0700)]
Merge tag 'xfs-4.18-fixes-5' of git://git./fs/xfs/xfs-linux
Pull xfs bugfix from Darrick Wong:
"One more patch for 4.18 to fix a coding error in the iomap_bmap()
function introduced in -rc1: fix incorrect shifting"
* tag 'xfs-4.18-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
fs: fix iomap_bmap position calculation
Linus Torvalds [Fri, 3 Aug 2018 19:22:09 +0000 (12:22 -0700)]
Partially revert "block: fail op_is_write() requests to read-only partitions"
It turns out that commit
721c7fc701c7 ("block: fail op_is_write()
requests to read-only partitions"), while obviously correct, causes
problems for some older lvm2 installations.
The reason is that the lvm snapshotting will continue to write to the
snapshow COW volume, even after the volume has been marked read-only.
End result: snapshot failure.
This has actually been fixed in newer version of the lvm2 tool, but the
old tools still exist, and the breakage was reported both in the kernel
bugzilla and in the Debian bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=200439
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=900442
The lvm2 fix is here
https://sourceware.org/git/?p=lvm2.git;a=commit;h=
a6fdb9d9d70f51c49ad11a87ab4243344e6701a3
but until everybody has updated to recent versions, we'll have to weaken
the "never write to read-only partitions" check. It now allows the
write to happen, but causes a warning, something like this:
generic_make_request: Trying to write to read-only block-device dm-3 (partno X)
Modules linked in: nf_tables xt_cgroup xt_owner kvm_intel iwlmvm kvm irqbypass iwlwifi
CPU: 1 PID: 77 Comm: kworker/1:1 Not tainted 4.17.9-gentoo #3
Hardware name: LENOVO 20B6A019RT/20B6A019RT, BIOS GJET91WW (2.41 ) 09/21/2016
Workqueue: ksnaphd do_metadata
RIP: 0010:generic_make_request_checks+0x4ac/0x600
...
Call Trace:
generic_make_request+0x64/0x400
submit_bio+0x6c/0x140
dispatch_io+0x287/0x430
sync_io+0xc3/0x120
dm_io+0x1f8/0x220
do_metadata+0x1d/0x30
process_one_work+0x1b9/0x3e0
worker_thread+0x2b/0x3c0
kthread+0x113/0x130
ret_from_fork+0x35/0x40
Note that this is a "revert" in behavior only. I'm leaving alone the
actual code cleanups in commit
721c7fc701c7, but letting the previously
uncaught request go through with a warning instead of stopping it.
Fixes: 721c7fc701c7 ("block: fail op_is_write() requests to read-only partitions")
Reported-and-tested-by: WGH <wgh@torlan.ru>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dmitry Safonov [Sun, 5 Aug 2018 00:35:53 +0000 (01:35 +0100)]
netlink: Don't shift on 64 for ngroups
It's legal to have 64 groups for netlink_sock.
As user-supplied nladdr->nl_groups is __u32, it's possible to subscribe
only to first 32 groups.
The check for correctness of .bind() userspace supplied parameter
is done by applying mask made from ngroups shift. Which broke Android
as they have 64 groups and the shift for mask resulted in an overflow.
Fixes: 61f4b23769f0 ("netlink: Don't shift with UB on nlk->ngroups")
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org
Reported-and-Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 5 Aug 2018 00:51:55 +0000 (17:51 -0700)]
Merge git://git./pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2018-08-05
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix bpftool percpu_array dump by using correct roundup to next
multiple of 8 for the value size, from Yonghong.
2) Fix in AF_XDP's __xsk_rcv_zc() to not returning frames back to
allocator since driver will recycle frame anyway in case of an
error, from Jakub.
3) Fix up BPF test_lwt_seg6local test cases to final iproute2
syntax, from Mathieu.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Sat, 4 Aug 2018 21:20:40 +0000 (14:20 -0700)]
ethtool: Remove trailing semicolon for static inline
Android's header sanitization tool chokes on static inline functions having a
trailing semicolon, leading to an incorrectly parsed header file. While the
tool should obviously be fixed, also fix the header files for the two affected
functions: ethtool_get_flow_spec_ring() and ethtool_get_flow_spec_ring_vf().
Fixes: 8cf6f497de40 ("ethtool: Add helper routines to pass vf to rx_flow_spec")
Reporetd-by: Blair Prescott <blair.prescott@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 4 Aug 2018 20:23:15 +0000 (13:23 -0700)]
Merge branch 'net-ARRAY_SIZE'
zhong jiang says:
====================
Use ARRAY_SIZE to replace computing the size
zhong jiang (2):
net:usb: Use ARRAY_SIZE instead of calculating the array size
include/net/bond_3ad: Simplify the code by using the ARRAY_SIZE
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
zhong jiang [Fri, 3 Aug 2018 06:53:15 +0000 (14:53 +0800)]
include/net/bond_3ad: Simplify the code by using the ARRAY_SIZE
We prefer to ARRAY_SIZE rather than the open code to calculate size.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
zhong jiang [Fri, 3 Aug 2018 06:53:14 +0000 (14:53 +0800)]
net:usb: Use ARRAY_SIZE instead of calculating the array size
We use ARRAY_SIZE to replace open code sizeof(lan78xx_regs) / sizeof(u32).
It make the code concise.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 3 Aug 2018 07:50:02 +0000 (15:50 +0800)]
tun: not use hardcoded mask value
0x3ff in tun_hashfn is mask of TUN_NUM_FLOW_ENTRIES, instead
of hardcode, define a macro to setup the relationship with
TUN_NUM_FLOW_ENTRIES
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun [Fri, 3 Aug 2018 08:38:33 +0000 (10:38 +0200)]
net/smc: no cursor update send in state SMC_INIT
If a writer blocked condition is received without data, the current
consumer cursor is immediately sent. Servers could already receive this
condition in state SMC_INIT without finished tx-setup. This patch
avoids sending a consumer cursor update in this case.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jia-Ju Bai [Sat, 4 Aug 2018 00:40:09 +0000 (08:40 +0800)]
net: cisco: enic: Replace GFP_ATOMIC with GFP_KERNEL
vnic_dev_register(), vnic_rq_alloc_bufs() and vnic_wq_alloc_bufs()
are never called in atomic context.
They call kzalloc() with GFP_ATOMIC, which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Acked-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
zhong jiang [Sat, 4 Aug 2018 11:41:41 +0000 (19:41 +0800)]
net: Remove some unneeded semicolon
These semicolons are not needed. Just remove them.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kees Cook [Fri, 3 Aug 2018 19:52:58 +0000 (12:52 -0700)]
jfs: Fix usercopy whitelist for inline inode data
Bart Massey reported what turned out to be a usercopy whitelist false
positive in JFS when symlink contents exceeded 128 bytes. The inline
inode data (i_inline) is actually designed to overflow into the "extended
area" following it (i_inline_ea) when needed. So the whitelist needed to
be expanded to include both i_inline and i_inline_ea (the whole size
of which is calculated internally using IDATASIZE, 256, instead of
sizeof(i_inline), 128).
$ cd /mnt/jfs
$ touch $(perl -e 'print "B" x 250')
$ ln -s B* b
$ ls -l >/dev/null
[ 249.436410] Bad or missing usercopy whitelist? Kernel memory exposure attempt detected from SLUB object 'jfs_ip' (offset 616, size 250)!
Reported-by: Bart Massey <bart.massey@gmail.com>
Fixes: 8d2704d382a9 ("jfs: Define usercopy region in jfs_ip slab cache")
Cc: Dave Kleikamp <shaggy@kernel.org>
Cc: jfs-discussion@lists.sourceforge.net
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
YueHaibing [Fri, 3 Aug 2018 08:28:48 +0000 (16:28 +0800)]
tcp: remove unneeded variable 'err'
variable 'err' is unmodified after initalization,
so simply cleans up it and returns 0.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Baron [Fri, 3 Aug 2018 21:24:53 +0000 (17:24 -0400)]
af_unix: ensure POLLOUT on remote close() for connected dgram socket
Applications use -ECONNREFUSED as returned from write() in order to
determine that a socket should be closed. However, when using connected
dgram unix sockets in a poll/write loop, a final POLLOUT event can be
missed when the remote end closes. Thus, the poll is stuck forever:
thread 1 (client) thread 2 (server)
connect() to server
write() returns -EAGAIN
unix_dgram_poll()
-> unix_recvq_full() is true
close()
->unix_release_sock()
->wake_up_interruptible_all()
unix_dgram_poll() (due to the
wake_up_interruptible_all)
-> unix_recvq_full() still is true
->free all skbs
Now thread 1 is stuck and will not receive anymore wakeups. In this
case, when thread 1 gets the -EAGAIN, it has not queued any skbs
otherwise the 'free all skbs' step would in fact cause a wakeup and
a POLLOUT return. So the race here is probably fairly rare because
it means there are no skbs that thread 1 queued and that thread 1
schedules before the 'free all skbs' step.
This issue was reported as a hang when /dev/log is closed.
The fix is to signal POLLOUT if the socket is marked as SOCK_DEAD, which
means a subsequent write() will get -ECONNREFUSED.
Reported-by: Ian Lance Taylor <iant@golang.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso [Fri, 3 Aug 2018 22:31:48 +0000 (00:31 +0200)]
netfilter: nft_tunnel: fix sparse errors
[...]
net/netfilter/nft_tunnel.c:117:25: expected unsigned int [unsigned] [usertype] flags
net/netfilter/nft_tunnel.c:117:25: got restricted __be16 [usertype] <noident>
[...]
net/netfilter/nft_tunnel.c:246:33: expected restricted __be16 [addressable] [assigned] [usertype] tp_dst
net/netfilter/nft_tunnel.c:246:33: got int
Fixes: af308b94a2a4 ("netfilter: nf_tables: add tunnel support")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Linus Torvalds [Fri, 3 Aug 2018 20:43:59 +0000 (13:43 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Two vmx bugfixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: x86: vmx: fix vpid leak
KVM: vmx: use local variable for current_vmptr when emulating VMPTRST
Kees Cook [Fri, 3 Aug 2018 16:37:45 +0000 (09:37 -0700)]
ppp: mppe: Remove VLA usage
In the quest to remove all stack VLA usage from the kernel[1], this
removes the discouraged use of AHASH_REQUEST_ON_STACK (and associated
VLA) by switching to shash directly and keeping the associated descriptor
allocated with the regular state on the heap.
[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Howells [Fri, 3 Aug 2018 16:06:56 +0000 (17:06 +0100)]
rxrpc: Push iov_iter up from rxrpc_kernel_recv_data() to caller
Push iov_iter up from rxrpc_kernel_recv_data() to its caller to allow
non-contiguous iovs to be passed down, thereby permitting file reading to
be simplified in the AFS filesystem in a future patch.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Fri, 3 Aug 2018 15:00:11 +0000 (17:00 +0200)]
l2tp: fix missing refcount drop in pppol2tp_tunnel_ioctl()
If 'session' is not NULL and is not a PPP pseudo-wire, then we fail to
drop the reference taken by l2tp_session_get().
Fixes: ecd012e45ab5 ("l2tp: filter out non-PPP sessions in pppol2tp_tunnel_ioctl()")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 3 Aug 2018 19:28:02 +0000 (12:28 -0700)]
Merge branch 'mlxsw-Fix-ACL-actions-error-condition-handling'
Ido Schimmel says:
====================
mlxsw: Fix ACL actions error condition handling
Nir says:
Two issues were lately noticed within mlxsw ACL actions error condition
handling. The first patch deals with conflicting actions such as:
# tc filter add dev swp49 parent ffff: \
protocol ip pref 10 flower skip_sw dst_ip 192.168.101.1 \
action goto chain 100 \
action mirred egress redirect dev swp4
The second action will never execute, however SW model allows this
configuration, while the mlxsw driver cannot allow for it as it
implements actions in sets of up to three actions per set with a single
termination marking. Conflicting actions create a contradiction over
this single marking and thus cannot be configured. The fix replaces a
misplaced warning with an error code to be returned.
Patches 2-4 fix a condition of duplicate destruction of resources. Some
actions require allocation of specific resource prior to setting the
action itself. On error condition this resource was destroyed twice,
leading to a crash when using mirror action, and to a redundant
destruction in other cases, since for error condition rule destruction
also takes care of resource destruction. In order to fix this state a
symmetry in behavior is added and resource destruction also takes care
of removing the resource from rule's resource list.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Nir Dotan [Fri, 3 Aug 2018 12:57:44 +0000 (15:57 +0300)]
mlxsw: core_acl_flex_actions: Remove redundant mirror resource destruction
In previous patch mlxsw_afa_resource_del() was added to avoid a duplicate
resource detruction scenario.
For mirror actions, such duplicate destruction leads to a crash as in:
# tc qdisc add dev swp49 ingress
# tc filter add dev swp49 parent ffff: \
protocol ip chain 100 pref 10 \
flower skip_sw dst_ip 192.168.101.1 action drop
# tc filter add dev swp49 parent ffff: \
protocol ip pref 10 \
flower skip_sw dst_ip 192.168.101.1 action goto chain 100 \
action mirred egress mirror dev swp4
Therefore add a call to mlxsw_afa_resource_del() in
mlxsw_afa_mirror_destroy() in order to clear that resource
from rule's resources.
Fixes: d0d13c1858a1 ("mlxsw: spectrum_acl: Add support for mirror action")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nir Dotan [Fri, 3 Aug 2018 12:57:43 +0000 (15:57 +0300)]
mlxsw: core_acl_flex_actions: Remove redundant counter destruction
Each tc flower rule uses a hidden count action. As counter resource may
not be available due to limited HW resources, update _counter_create()
and _counter_destroy() pair to follow previously introduced symmetric
error condition handling, add a call to mlxsw_afa_resource_del() as part
of the counter resource destruction.
Fixes: c18c1e186ba8 ("mlxsw: core: Make counter index allocated inside the action append")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nir Dotan [Fri, 3 Aug 2018 12:57:42 +0000 (15:57 +0300)]
mlxsw: core_acl_flex_actions: Remove redundant resource destruction
Some ACL actions require the allocation of a separate resource
prior to applying the action itself. When facing an error condition
during the setup phase of the action, resource should be destroyed.
For such actions the destruction was done twice which is dangerous
and lead to a potential crash.
The destruction took place first upon error on action setup phase
and then as the rule was destroyed.
The following sequence generated a crash:
# tc qdisc add dev swp49 ingress
# tc filter add dev swp49 parent ffff: \
protocol ip chain 100 pref 10 \
flower skip_sw dst_ip 192.168.101.1 action drop
# tc filter add dev swp49 parent ffff: \
protocol ip pref 10 \
flower skip_sw dst_ip 192.168.101.1 action goto chain 100 \
action mirred egress mirror dev swp4
Therefore add mlxsw_afa_resource_del() as a complement of
mlxsw_afa_resource_add() to add symmetry to resource_list membership
handling. Call this from mlxsw_afa_fwd_entry_ref_destroy() to make the
_fwd_entry_ref_create() and _fwd_entry_ref_destroy() pair of calls a
NOP.
Fixes: 140ce421217e ("mlxsw: core: Convert fwd_entry_ref list to be generic per-block resource list")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nir Dotan [Fri, 3 Aug 2018 12:57:41 +0000 (15:57 +0300)]
mlxsw: core_acl_flex_actions: Return error for conflicting actions
Spectrum switch ACL action set is built in groups of three actions
which may point to additional actions. A group holds a single record
which can be set as goto record for pointing at a following group
or can be set to mark the termination of the lookup. This is perfectly
adequate for handling a series of actions to be executed on a packet.
While the SW model allows configuration of conflicting actions
where it is clear that some actions will never execute, the mlxsw
driver must block such configurations as it creates a conflict
over the single terminate/goto record value.
For a conflicting actions configuration such as:
# tc filter add dev swp49 parent ffff: \
protocol ip pref 10 \
flower skip_sw dst_ip 192.168.101.1 \
action goto chain 100 \
action mirred egress mirror dev swp4
Where it is clear that the last action will never execute, the
mlxsw driver was issuing a warning instead of returning an error.
Therefore replace that warning with an error for this specific
case.
Fixes: 4cda7d8d7098 ("mlxsw: core: Introduce flexible actions support")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Westphal [Fri, 3 Aug 2018 16:40:21 +0000 (18:40 +0200)]
netfilter: conntrack: avoid use-after free on rmmod
When the conntrack module is removed, we call nf_ct_iterate_destroy via
nf_ct_l4proto_unregister().
Problem is that nf_conntrack_proto_fini() gets called after the
conntrack hash table has already been freed.
Just remove the l4proto unregister call, its unecessary as the
nf_ct_protos[] array gets free'd right after anyway.
v2: add comment wrt. missing unreg call.
Fixes: a0ae2562c6c4b2 ("netfilter: conntrack: remove l3proto abstraction")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Florian Westphal [Fri, 3 Aug 2018 15:56:12 +0000 (17:56 +0200)]
netfilter: kconfig: remove ct zone/label dependencies
connection tracking zones currently depend on the xtables CT target.
The reasoning was that it makes no sense to support zones if they can't
be configured (which needed CT target).
Nowadays zones can also be used by OVS and configured via nftables,
so remove the dependency.
connection tracking labels are handled via hidden dependency that gets
auto-selected by the connlabel match.
Make it a visible knob, as labels can be attached via ctnetlink
or via nftables rules (nft_ct expression) too.
This allows to use conntrack labels and zones with nftables-only build.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pablo Neira Ayuso [Fri, 3 Aug 2018 11:35:36 +0000 (13:35 +0200)]
netfilter: nf_tables: simplify NLM_F_CREATE handling
* From nf_tables_newchain(), codepath provides context that allows us to
infer if we are updating a chain (in that case, no module autoload is
required) or adding a new one (then, module autoload is indeed
needed).
* We only need it in one single spot in nf_tables_newrule().
* Not needed for nf_tables_newset() at all.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Máté Eckl [Fri, 3 Aug 2018 11:36:13 +0000 (13:36 +0200)]
netfilter: bridge: Expose nf_tables bridge hook priorities through uapi
Netfilter exposes standard hook priorities in case of ipv4, ipv6 and
arp but not in case of bridge.
This patch exposes the hook priority values of the bridge family (which are
different from the formerly mentioned) via uapi so that they can be used by
user-space applications just like the others.
Signed-off-by: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pablo Neira Ayuso [Thu, 2 Aug 2018 18:51:46 +0000 (20:51 +0200)]
netfilter: nf_tables: match on tunnel metadata
This patch allows us to match on the tunnel metadata that is available
of the packet. We can use this to validate if the packet comes from/goes
to tunnel and the corresponding tunnel ID.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pablo Neira Ayuso [Thu, 2 Aug 2018 18:51:39 +0000 (20:51 +0200)]
netfilter: nf_tables: add tunnel support
This patch implements the tunnel object type that can be used to
configure tunnels via metadata template through the existing lightweight
API from the ingress path.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
David S. Miller [Fri, 3 Aug 2018 19:11:43 +0000 (12:11 -0700)]
Merge branch 'dsa-systemport-WoL'
Florian Fainelli says:
====================
net: dsa and systemport WoL changes
This patch series extracts what was previously submitted as part of the
"WAKE_FILTER" Wake-on-LAN patch series into patches that do not.
Changes in this series:
- properly align the dsa_is_cpu_port() check in first patch
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 3 Aug 2018 18:08:44 +0000 (11:08 -0700)]
net: systemport: Create helper to set MPD
Create a helper function to turn on/off MPD, this will be used to avoid
duplicating code as we are going to add additional types of wake-up
types.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 3 Aug 2018 18:08:43 +0000 (11:08 -0700)]
net: systemport: Do not re-configure upon WoL interrupt
We already properly resume from Wake-on-LAN whether such a condition
occured or not, no need to process the WoL interrupt for functional
changes since that could race with other settings.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 3 Aug 2018 18:08:42 +0000 (11:08 -0700)]
net: dsa: bcm_sf2: Disable learning while in WoL
When we are in Wake-on-LAN, we operate with the host sofware not running
a network stack, so we want to the switch to flood packets in order to
cause a system wake-up when matching specific filters (unicast or
multicast). This was not necessary before since we supported Magic
Packet which are targeting a broadcast MAC address which the switch
already floods.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 3 Aug 2018 18:08:41 +0000 (11:08 -0700)]
net: dsa: bcm_sf2: Allow targeting CPU ports for CFP rules
ds->enabled_port_mask only contains a bitmask of user-facing enabled
ports, we also need to allow programming CFP rules that target CPU ports
(e.g: ports 5 and 8).
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Máté Eckl [Thu, 2 Aug 2018 19:18:31 +0000 (21:18 +0200)]
netfilter: nft_tproxy: Add missing config check
A config check was missing form the code when using
nf_defrag_ipv6_enable with NFT_TPROXY != n and NF_DEFRAG_IPV6 = n and
this caused the following error:
../net/netfilter/nft_tproxy.c: In function 'nft_tproxy_init':
../net/netfilter/nft_tproxy.c:237:3: error: implicit declaration of function
+'nf_defrag_ipv6_enable' [-Werror=implicit-function-declaration]
err = nf_defrag_ipv6_enable(ctx->net);
This patch adds a check for NF_TABLES_IPV6 when NF_DEFRAG_IPV6 is
selected by Kconfig.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 4ed8eb6570a4 ("netfilter: nf_tables: Add native tproxy support")
Signed-off-by: Máté Eckl <ecklm94@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Linus Torvalds [Fri, 3 Aug 2018 17:49:47 +0000 (10:49 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma
Pull rdma fix from Jason Gunthorpe:
"One bug for missing user input validation: refuse invalid port numbers
in the modify_qp system call"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/uverbs: Expand primary and alt AV port checks
Linus Torvalds [Fri, 3 Aug 2018 17:43:56 +0000 (10:43 -0700)]
Merge tag 'for-linus-
20180803' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe:
"Just a single fix, from Ming, fixing a regression in this cycle where
the busy tag iteration was changed to only calling the callback
function for requests that are started. We really want all non-free
requests.
This fixes a boot regression on certain VM setups"
* tag 'for-linus-
20180803' of git://git.kernel.dk/linux-block:
blk-mq: fix blk_mq_tagset_busy_iter
Linus Torvalds [Fri, 3 Aug 2018 17:42:01 +0000 (10:42 -0700)]
Merge tag 'nfs-for-4.18-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfix from Trond Myklebust:
"Fix a NFSv4 file locking regression"
* tag 'nfs-for-4.18-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv4: Fix _nfs4_do_setlk()
Linus Torvalds [Fri, 3 Aug 2018 17:38:21 +0000 (10:38 -0700)]
Merge tag 'powerpc-4.18-5' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"One fix for a regression in a recent TLB flush optimisation, which
caused us to incorrectly not send TLB invalidations to coprocessors.
Thanks to Frederic Barrat, Nicholas Piggin, Vaibhav Jain"
* tag 'powerpc-4.18-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s/radix: Fix missing global invalidations when removing copro
Linus Torvalds [Fri, 3 Aug 2018 17:16:03 +0000 (10:16 -0700)]
Merge tag 'drm-fixes-2018-08-03' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Nothing too major at this late stage:
- adv7511: reset fix
- vc4: scaling fix
- two atomic core fixes
- one legacy core error handling fix
I had a bunch of driver fixes from hdlcd but I think I'll leave them
for -next at this point"
* tag 'drm-fixes-2018-08-03' of git://anongit.freedesktop.org/drm/drm:
drm/vc4: Reset ->{x, y}_scaling[1] when dealing with uniplanar formats
drm/atomic: Initialize variables in drm_atomic_helper_async_check() to make gcc happy
drm/atomic: Check old_plane_state->crtc in drm_atomic_helper_async_check()
drm: re-enable error handling
drm/bridge: adv7511: Reset registers on hotplug
Linus Torvalds [Fri, 3 Aug 2018 17:09:45 +0000 (10:09 -0700)]
Merge branch 'linus' of git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"Fix a memory corruption in the padlock-aes driver"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: padlock-aes - Fix Nano workaround data corruption
David S. Miller [Fri, 3 Aug 2018 17:03:57 +0000 (10:03 -0700)]
Merge branch 'l2tp-mtu'
Guillaume Nault says:
====================
l2tp: sanitise MTU handling on sessions
Most of the code handling sessions' MTU has no effect. The ->mtu field
in struct l2tp_session might be used at session creation time, but
neither PPP nor Ethernet pseudo-wires take updates into account.
L2TP sessions don't have a concept of MTU, which is the reason why
->mtu is mostly ignored. MTU should remain a network device thing.
Therefore this patch set does not try to propagate/update ->mtu to/from
the device. That would complicate the code unnecessarily. Instead this
field and the associated ioctl commands and netlink attributes are
removed.
Patch #1 defines l2tp_tunnel_dst_mtu() in order to simplify the
following patches. Then patches #2 and #3 remove MTU handling from PPP
and Ethernet pseudo-wires respectively.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Fri, 3 Aug 2018 10:38:39 +0000 (12:38 +0200)]
l2tp: ignore L2TP_ATTR_MTU
This attribute's handling is broken. It can only be used when creating
Ethernet pseudo-wires, in which case its value can be used as the
initial MTU for the l2tpeth device.
However, when handling update requests, L2TP_ATTR_MTU only modifies
session->mtu. This value is never propagated to the l2tpeth device.
Dump requests also return the value of session->mtu, which is not
synchronised anymore with the device MTU.
The same problem occurs if the device MTU is properly updated using the
generic IFLA_MTU attribute. In this case, session->mtu is not updated,
and L2TP_ATTR_MTU will report an invalid value again when dumping the
session.
It does not seem worthwhile to complexify l2tp_eth.c to synchronise
session->mtu with the device MTU. Even the ip-l2tp manpage advises to
use 'ip link' to initialise the MTU of l2tpeth devices (iproute2 does
not handle L2TP_ATTR_MTU at all anyway). So let's just ignore it
entirely.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Fri, 3 Aug 2018 10:38:37 +0000 (12:38 +0200)]
l2tp: simplify MTU handling in l2tp_ppp
The value of the session's .mtu field, as defined by
pppol2tp_connect() or pppol2tp_session_create(), is later overwritten
by pppol2tp_session_init() (unless getting the tunnel's socket PMTU
fails). This field is then only used when setting the PPP channel's MTU
in pppol2tp_connect().
Furthermore, the SIOC[GS]IFMTU ioctls only act on the session's .mtu
without propagating this value to the PPP channel, making them useless.
This patch initialises the PPP channel's MTU directly and ignores the
session's .mtu entirely. MTU is still computed by subtracting the
PPPOL2TP_HEADER_OVERHEAD constant. It is not optimal, but that doesn't
really matter: po->chan.mtu is only used when the channel is part of a
multilink PPP bundle. Running multilink PPP over packet switched
networks is certainly not going to be efficient, so not picking the
best MTU does not harm (in the worst case, packets will just be
fragmented by the underlay).
The SIOC[GS]IFMTU ioctls are removed entirely (as opposed to simply
ignored), because these ioctls commands are part of the requests that
should be handled generically by the socket layer. PX_PROTO_OL2TP was
the only socket type abusing these ioctls.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Fri, 3 Aug 2018 10:38:34 +0000 (12:38 +0200)]
l2tp: define l2tp_tunnel_dst_mtu()
Consolidate retrieval of tunnel's socket mtu in order to simplify
l2tp_eth and l2tp_ppp a bit.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 3 Aug 2018 16:53:24 +0000 (09:53 -0700)]
Merge branch 'hns3-next'
Salil Mehta says:
====================
Some important fixes for HNS3 driver
This patch presents some important fixes related to MSIX allocation
in HNS3 driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jian Shen [Fri, 3 Aug 2018 09:56:31 +0000 (10:56 +0100)]
net: hns3: Refine the MSIX allocation for PF
The offset of msix number for roce is different between different
revision id. We should get it from firmware, instead of a fix value.
This patch refines the msix allocation, make it compatible.
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jian Shen [Fri, 3 Aug 2018 09:56:30 +0000 (10:56 +0100)]
net: hns3: Fix MSIX allocation issue for VF
The msix number for vf is different, depends on the max vf number.
Futherly if the vf supports roce, the offset of msix is not fixed.
It's incorrect to fix the msix number to 33. This patch fixes it by
querying the msix number from firmware, and adjusting it with roce
support.
Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Harsha Sharma [Thu, 2 Aug 2018 03:56:24 +0000 (09:26 +0530)]
netfilter: cttimeout: Make NF_CT_NETLINK_TIMEOUT depend on NF_CONNTRACK_TIMEOUT
With this, remove ifdef for CONFIG_NF_CONNTRACK_TIMEOUT in
nfnetlink_cttimeout. This is also required for moving ctnl_untimeout
from nfnetlink_cttimeout to nf_conntrack_timeout.
Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
YueHaibing [Wed, 1 Aug 2018 02:14:00 +0000 (10:14 +0800)]
netfilter: nf_tables: remove unused variable
Variable 'ext' is being assigned but are never used hence they are
unused and can be removed.
Cleans up clang warnings:
net/netfilter/nf_tables_api.c:4032:28: warning: variable ‘ext’ set but not used [-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Kees Cook [Fri, 3 Aug 2018 09:15:25 +0000 (10:15 +0100)]
rxrpc: Reuse SKCIPHER_REQUEST_ON_STACK buffer
The use of SKCIPHER_REQUEST_ON_STACK() will trigger FRAME_WARN warnings
(when less than 2048) once the VLA is no longer hidden from the check:
net/rxrpc/rxkad.c:398:1: warning: the frame size of 1152 bytes is larger than 1024 bytes [-Wframe-larger-than=]
net/rxrpc/rxkad.c:242:1: warning: the frame size of 1152 bytes is larger than 1024 bytes [-Wframe-larger-than=]
This passes the initial SKCIPHER_REQUEST_ON_STACK allocation to the leaf
functions for reuse. Two requests allocated on the stack is not needed
when only one is used at a time.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Fri, 3 Aug 2018 09:08:47 +0000 (11:08 +0200)]
net: sched: fix flush on non-existing chain
User was able to perform filter flush on chain 0 even if it didn't have
any filters in it. With the patch that avoided implicit chain 0
creation, this changed. So in case user wants filter flush on chain
which does not exist, just return success. There's no reason for non-0
chains to behave differently than chain 0, so do the same for them.
Reported-by: Ido Schimmel <idosch@mellanox.com>
Fixes: f71e0ca4db18 ("net: sched: Avoid implicit chain 0 creation")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
YueHaibing [Fri, 3 Aug 2018 08:48:56 +0000 (16:48 +0800)]
bnxt_en: combine 'else if' and 'else' into single branch
The else-if branch and else branch set mac_ok to true similarly,
so combine the two into single else branch.
Also add comments to explain the two conditions, which
from Michael Chan and Vasundhara Volam.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Westphal [Tue, 31 Jul 2018 15:24:45 +0000 (17:24 +0200)]
netfilter: nf_tables: flow event notifier must use transaction mutex
Fixes: f102d66b335a4 ("netfilter: nf_tables: use dedicated mutex to guard transactions")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Fernando Fernandez Mancera [Tue, 31 Jul 2018 18:25:01 +0000 (20:25 +0200)]
netfilter: nfnetlink_osf: rename nf_osf header file to nfnetlink_osf
The first client of the nf_osf.h userspace header is nft_osf, coming in
this batch, rename it to nfnetlink_osf.h as there are no userspace
clients for this yet, hence this looks consistent with other nfnetlink
subsystem.
Suggested-by: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Fernando Fernandez Mancera [Tue, 31 Jul 2018 18:25:00 +0000 (20:25 +0200)]
netfilter: nf_osf: move nf_osf_fingers to non-uapi header file
All warnings (new ones prefixed by >>):
>> ./usr/include/linux/netfilter/nf_osf.h:73: userspace cannot reference function or variable defined in the kernel
Fixes: f9324952088f ("netfilter: nfnetlink_osf: extract nfnetlink_subsystem code from xt_osf.c")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Li RongQing [Wed, 25 Jul 2018 07:52:13 +0000 (15:52 +0800)]
netfilter: use kvmalloc_array to allocate memory for hashtable
nf_ct_alloc_hashtable is used to allocate memory for conntrack,
NAT bysrc and expectation hashtable. Assuming 64k bucket size,
which means 7th order page allocation, __get_free_pages, called
by nf_ct_alloc_hashtable, will trigger the direct memory reclaim
and stall for a long time, when system has lots of memory stress
so replace combination of __get_free_pages and vzalloc with
kvmalloc_array, which provides a overflow check and a fallback
if no high order memory is available, and do not retry to reclaim
memory, reduce stall
and remove nf_ct_free_hashtable, since it is just a kvfree
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Signed-off-by: Wang Li <wangli39@baidu.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Frederic Weisbecker [Fri, 3 Aug 2018 13:31:34 +0000 (15:31 +0200)]
nohz: Fix missing tick reprogram when interrupting an inline softirq
The full nohz tick is reprogrammed in irq_exit() only if the exit is not in
a nesting interrupt. This stands as an optimization: whether a hardirq or a
softirq is interrupted, the tick is going to be reprogrammed when necessary
at the end of the inner interrupt, with even potential new updates on the
timer queue.
When soft interrupts are interrupted, it's assumed that they are executing
on the tail of an interrupt return. In that case tick_nohz_irq_exit() is
called after softirq processing to take care of the tick reprogramming.
But the assumption is wrong: softirqs can be processed inline as well, ie:
outside of an interrupt, like in a call to local_bh_enable() or from
ksoftirqd.
Inline softirqs don't reprogram the tick once they are done, as opposed to
interrupt tail softirq processing. So if a tick interrupts an inline
softirq processing, the next timer will neither be reprogrammed from the
interrupting tick's irq_exit() nor after the interrupted softirq
processing. This situation may leave the tick unprogrammed while timers are
armed.
To fix this, simply keep reprogramming the tick even if a softirq has been
interrupted. That can be optimized further, but for now correctness is more
important.
Note that new timers enqueued in nohz_full mode after a softirq gets
interrupted will still be handled just fine through self-IPIs triggered by
the timer code.
Reported-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: stable@vger.kernel.org # 4.14+
Link: https://lkml.kernel.org/r/1533303094-15855-1-git-send-email-frederic@kernel.org
Thomas Gleixner [Fri, 3 Aug 2018 12:44:59 +0000 (14:44 +0200)]
genirq: Make force irq threading setup more robust
The support of force threading interrupts which are set up with both a
primary and a threaded handler wreckaged the setup of regular requested
threaded interrupts (primary handler == NULL).
The reason is that it does not check whether the primary handler is set to
the default handler which wakes the handler thread. Instead it replaces the
thread handler with the primary handler as it would do with force threaded
interrupts which have been requested via request_irq(). So both the primary
and the thread handler become the same which then triggers the warnon that
the thread handler tries to wakeup a not configured secondary thread.
Fortunately this only happens when the driver omits the IRQF_ONESHOT flag
when requesting the threaded interrupt, which is normaly caught by the
sanity checks when force irq threading is disabled.
Fix it by skipping the force threading setup when a regular threaded
interrupt is requested. As a consequence the interrupt request which lacks
the IRQ_ONESHOT flag is rejected correctly instead of silently wreckaging
it.
Fixes: 2a1d3ab8986d ("genirq: Handle force threading of irqs with primary and thread handler")
Reported-by: Kurt Kanzenbach <kurt.kanzenbach@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Kurt Kanzenbach <kurt.kanzenbach@linutronix.de>
Cc: stable@vger.kernel.org
Mathieu Xhonneux [Wed, 1 Aug 2018 15:34:54 +0000 (15:34 +0000)]
selftests/bpf: update test_lwt_seg6local.sh according to iproute2
The shell file for test_lwt_seg6local contains an early iproute2 syntax
for installing a seg6local End.BPF route. iproute2 support for this
feature has recently been upstreamed, but with an additional keyword
required. This patch updates test_lwt_seg6local.sh to the definitive
iproute2 syntax
Signed-off-by: Mathieu Xhonneux <m.xhonneux@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jakub Kicinski [Fri, 3 Aug 2018 02:30:27 +0000 (19:30 -0700)]
tools: bpf: fix BTF code added twice to different trees
commit
38d5d3b3d5db ("bpf: Introduce BPF_ANNOTATE_KV_PAIR")
added to the bpf and net trees what
commit
92b57121ca79 ("bpf: btf: export btf types and name by offset from lib")
has already added to bpf-next/net-next, but in slightly different
location. Remove the duplicates (to fix build of libbpf).
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>