The stack object “info” has a total size of 12 bytes. Its last byte
is padding which is not initialized and leaked via “put_cmsg”.
Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the receive path a queue's work bit was cleared unconditionally even
if fec_enet_rx_queue only read out a part of the available packets from
the hardware. This resulted in not reading any packets in the next napi
turn and so packets were delayed or lost.
The obvious fix is to only clear a queue's bit when the queue was
emptied.
Fixes: 4d494cdc92 ("net: fec: change data structure to support multiqueue")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Fugang Duan <fugang.duan@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When probe bails out with an error, we try to unregister the
netdev before we have even registered it. Fix the goto statements
for that.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
"Some straggler bug fixes:
1) Batman-adv DAT must consider VLAN IDs when choosing candidate
nodes, from Antonio Quartulli.
2) Fix botched reference counting of vlan objects and neigh nodes in
batman-adv, from Sven Eckelmann.
3) netem can crash when it sees GSO packets, the fix is to segment
then upon ->enqueue. Fix from Neil Horman with help from Eric
Dumazet.
4) Fix VXLAN dependencies in mlx5 driver Kconfig, from Matthew
Finlay.
5) Handle VXLAN ops outside of rcu lock, via a workqueue, in mlx5,
since it can sleep. Fix also from Matthew Finlay.
6) Check mdiobus_scan() return values properly in pxa168_eth and macb
drivers. From Sergei Shtylyov.
7) If the netdevice doesn't support checksumming, disable
segmentation. From Alexandery Duyck.
8) Fix races between RDS tcp accept and sending, from Sowmini
Varadhan.
9) In macb driver, probe MDIO bus before we register the netdev,
otherwise we can try to open the device before it is really ready
for that. Fix from Florian Fainelli.
10) Netlink attribute size for ILA "tunnels" not calculated properly,
fix from Nicolas Dichtel"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
ipv6/ila: fix nlsize calculation for lwtunnel
net: macb: Probe MDIO bus before registering netdev
RDS: TCP: Synchronize accept() and connect() paths on t_conn_lock.
RDS:TCP: Synchronize rds_tcp_accept_one with rds_send_xmit when resetting t_sock
vxlan: Add checksum check to the features check function
net: Disable segmentation if checksumming is not supported
net: mvneta: Remove superfluous SMP function call
macb: fix mdiobus_scan() error check
pxa168_eth: fix mdiobus_scan() error check
net/mlx5e: Use workqueue for vxlan ops
net/mlx5e: Implement a mlx5e workqueue
net/mlx5: Kconfig: Fix MLX5_EN/VXLAN build issue
net/mlx5: Unmap only the relevant IO memory mapping
netem: Segment GSO packets on enqueue
batman-adv: Fix reference counting of hardif_neigh_node object for neigh_node
batman-adv: Fix reference counting of vlan object for tt_local_entry
batman-adv: B.A.T.M.A.N V - make sure iface is reactivated upon NETDEV_UP event
batman-adv: fix DAT candidate selection (must use vid)
Pull fuse fixes from Miklos Szeredi:
"Fix a regression and update the MAINTAINERS entry for fuse"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: update mailing list in MAINTAINERS
fuse: Fix return value from fuse_get_user_pages()
The handler 'ila_fill_encap_info' adds one attribute: ILA_ATTR_LOCATOR.
Fixes: 65d7ab8de5 ("net: Identifier Locator Addressing module")
CC: Tom Herbert <tom@herbertland.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current sequence makes us register for a network device prior to
registering and probing the MDIO bus which could lead to some unwanted
consequences, like a thread of execution calling into ndo_open before
register_netdev() returns, while the MDIO bus is not ready yet.
Rework the sequence to register for the MDIO bus, and therefore attach
to a PHY prior to calling register_netdev(), which implies reworking the
error path a bit.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sowmini Varadhan says:
====================
RDS: TCP: sychronization during connection startup
This patch series ensures that the passive (accept) side of the
TCP connection used for RDS-TCP is correctly synchronized with
any concurrent active (connect) attempts for a given pair of peers.
Patch 1 in the series makes sure that the t_sock in struct
rds_tcp_connection is only reset after any threads in rds_tcp_xmit
have completed (otherwise a null-ptr deref may be encountered).
Patch 2 synchronizes rds_tcp_accept_one() with the rds_tcp*connect()
path.
v2: review comments from Santosh Shilimkar, other spelling corrections
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
An arbitration scheme for duelling SYNs is implemented as part of
commit 241b271952 ("RDS-TCP: Reset tcp callbacks if re-using an
outgoing socket in rds_tcp_accept_one()") which ensures that both nodes
involved will arrive at the same arbitration decision. However, this
needs to be synchronized with an outgoing SYN to be generated by
rds_tcp_conn_connect(). This commit achieves the synchronization
through the t_conn_lock mutex in struct rds_tcp_connection.
The rds_conn_state is checked in rds_tcp_conn_connect() after acquiring
the t_conn_lock mutex. A SYN is sent out only if the RDS connection is
not already UP (an UP would indicate that rds_tcp_accept_one() has
completed 3WH, so no SYN needs to be generated).
Similarly, the rds_conn_state is checked in rds_tcp_accept_one() after
acquiring the t_conn_lock mutex. The only acceptable states (to
allow continuation of the arbitration logic) are UP (i.e., outgoing SYN
was SYN-ACKed by peer after it sent us the SYN) or CONNECTING (we sent
outgoing SYN before we saw incoming SYN).
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is a race condition between rds_send_xmit -> rds_tcp_xmit
and the code that deals with resolution of duelling syns added
by commit 241b271952 ("RDS-TCP: Reset tcp callbacks if re-using an
outgoing socket in rds_tcp_accept_one()").
Specifically, we may end up derefencing a null pointer in rds_send_xmit
if we have the interleaving sequence:
rds_tcp_accept_one rds_send_xmit
conn is RDS_CONN_UP, so
invoke rds_tcp_xmit
tc = conn->c_transport_data
rds_tcp_restore_callbacks
/* reset t_sock */
null ptr deref from tc->t_sock
The race condition can be avoided without adding the overhead of
additional locking in the xmit path: have rds_tcp_accept_one wait
for rds_tcp_xmit threads to complete before resetting callbacks.
The synchronization can be done in the same manner as rds_conn_shutdown().
First set the rds_conn_state to something other than RDS_CONN_UP
(so that new threads cannot get into rds_tcp_xmit()), then wait for
RDS_IN_XMIT to be cleared in the conn->c_flags indicating that any
threads in rds_tcp_xmit are done.
Fixes: 241b271952 ("RDS-TCP: Reset tcp callbacks if re-using an
outgoing socket in rds_tcp_accept_one()")
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck says:
====================
Fixes for tunnel checksum and segmentation offloads
This patch series is a subset of patches I had submitted for net-next. I
plan to drop these two patches from the v3 of "Fix Tunnel features and
enable GSO partial for several drivers" and I am instead submitting them
for net since these are truly fixes and likely will need to be backported
to stable branches.
This series addresses 2 specific issues. The first is that we could
request TSO on a v4 inner header while not supporting checksum offload of
the outer IPv6 header. The second is that we could request an IPv6 inner
checksum offload without validating that we could actually support an inner
IPv6 checksum offload.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We need to perform an additional check on the inner headers to determine if
we can offload the checksum for them. Previously this check didn't occur
so we would generate an invalid frame in the case of an IPv6 header
encapsulated inside of an IPv4 tunnel. To fix this I added a secondary
check to vxlan_features_check so that we can verify that we can offload the
inner checksum.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the case of the mlx4 and mlx5 driver they do not support IPv6 checksum
offload for tunnels. With this being the case we should disable GSO in
addition to the checksum offload features when we find that a device cannot
perform a checksum on a given packet type.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 3b9d6da67e ("cpu/hotplug: Fix rollback during error-out
in __cpu_disable()") it is ensured that callbacks of CPU_ONLINE and
CPU_DOWN_PREPARE are processed on the hotplugged CPU. Due to this SMP
function calls are no longer required.
Replace smp_call_function_single() with a direct call to
mvneta_percpu_enable() or mvneta_percpu_disable(). The functions do
not require to be called with interrupts disabled, therefore the
smp_call_function_single() calling convention is not preserved.
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now mdiobus_scan() returns ERR_PTR(-ENODEV) instead of NULL if the PHY
device ID was read as all ones. As this was not an error before, this
value should be filtered out now in this driver.
Fixes: b74766a0a0 ("phylib: don't return NULL from get_phy_device()")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since mdiobus_scan() returns either an error code or NULL on error, the
driver should check for both, not only for NULL, otherwise a crash is
imminent...
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull HID fixes from Jiri Kosina:
"Fixes for the HID subsystem:
- regression fix for Wacom driver; commit introduced in 4.6-rc1
mistakenly removed line that should be kept. Fix by Ping Cheng
- two device-specific quirks, by Ping Cheng and Nazar Mokrynskyi"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: wacom: add missed stylus_in_proximity line back
HID: Fix boot delay for Creative SB Omni Surround 5.1 with quirk
HID: wacom: Add support for DTK-1651
failures and division by zeros in the kernel on those devices.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One small bug fix for the imx6qp CAN clk definition that was causing
failures and division by zeros in the kernel on those devices"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: imx6q: fix typo in CAN clock definition
Saeed Mahameed says:
====================
Mellanox 100G mlx5 fixes for 4.6-rc
This small series provides some bug fixes for mlx5 driver.
A small bug fix for iounmap of a null pointer, which dumps a warning on some archs.
One patch to fix the VXLAN/MLX5_EN dependency issue reported by Arnd.
Two patches to fix the scheduling while atomic issue for ndo_add/del_vxlan_port
NDOs. The first will add an internal mlx5e workqueue and the second will
delegate vxlan ports add/del requests to that workqueue.
Note: ('net/mlx5: Kconfig: Fix MLX5_EN/VXLAN build issue') is only needed for net
and not net-next as the issue was globally fixed for all device drivers by:
b7aade1548 ('vxlan: break dependency with netdev drivers') in net-next.
Applied on top: f27337e16f ('ip_tunnel: fix preempt warning in ip tunnel creation/updating')
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The vxlan add/delete port NDOs are called under rcu lock.
The current mlx5e implementation can potentially block in these
calls, which is not allowed. Move to using the mlx5e workqueue
to handle these NDOs.
Fixes: b3f63c3d5e ('net/mlx5e: Add netdev support for VXLAN tunneling')
Signed-off-by: Matthew Finlay <matt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement a mlx5e workqueue to handle all mlx5e specific tasks. Move
all tasks currently using the system workqueue to the new workqueue.
This is in preparation for vxlan using the mlx5e workqueue in order to
schedule port add/remove operations.
Signed-off-by: Matthew Finlay <matt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When MLX5_EN=y MLX5_CORE=y and VXLAN=m there is a linker error for
vxlan_get_rx_port() due to the fact that VXLAN is a module. Change Kconfig
to select VXLAN when MLX5_CORE=y. When MLX5_CORE=m there is no dependency
on the value of VXLAN.
Fixes: b3f63c3d5e ('net/mlx5e: Add netdev support for VXLAN tunneling')
Signed-off-by: Matthew Finlay <matt@mellanox.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When freeing UAR the driver tries to unmap uar->map and uar->bf_map
which are mutually exclusive thus always unmapping a NULL pointer.
Make sure we only call iounmap() once, for the actual mapping.
Fixes: 0ba422410b ('net/mlx5: Fix global UAR mapping')
Signed-off-by: Gal Pressman <galp@mellanox.com>
Reported-by: Doron Tsur <doront@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 7e12978 ("HID: wacom: break out wacom_intuos_get_tool_type") by accident
removed stylus_in_proximity flag for Intuos series while shuffling the code
around.
Fix that by reintroducing that flag setting in wacom_intuos_inout(), where
it originally was.
Fixes: 7e12978 ("HID: wacom: break out wacom_intuos_get_tool_type")
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The fuse mailing list seems not to be open anymore. The discussion on
fuse-devel@... is mostly userspace related anyway.
Reported-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This was recently reported to me, and reproduced on the latest net kernel,
when attempting to run netperf from a host that had a netem qdisc attached
to the egress interface:
[ 788.073771] ---------------------[ cut here ]---------------------------
[ 788.096716] WARNING: at net/core/dev.c:2253 skb_warn_bad_offload+0xcd/0xda()
[ 788.129521] bnx2: caps=(0x00000001801949b3, 0x0000000000000000) len=2962
data_len=0 gso_size=1448 gso_type=1 ip_summed=3
[ 788.182150] Modules linked in: sch_netem kvm_amd kvm crc32_pclmul ipmi_ssif
ghash_clmulni_intel sp5100_tco amd64_edac_mod aesni_intel lrw gf128mul
glue_helper ablk_helper edac_mce_amd cryptd pcspkr sg edac_core hpilo ipmi_si
i2c_piix4 k10temp fam15h_power hpwdt ipmi_msghandler shpchp acpi_power_meter
pcc_cpufreq nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c
sd_mod crc_t10dif crct10dif_generic mgag200 syscopyarea sysfillrect sysimgblt
i2c_algo_bit drm_kms_helper ahci ata_generic pata_acpi ttm libahci
crct10dif_pclmul pata_atiixp tg3 libata crct10dif_common drm crc32c_intel ptp
serio_raw bnx2 r8169 hpsa pps_core i2c_core mii dm_mirror dm_region_hash dm_log
dm_mod
[ 788.465294] CPU: 16 PID: 0 Comm: swapper/16 Tainted: G W
------------ 3.10.0-327.el7.x86_64 #1
[ 788.511521] Hardware name: HP ProLiant DL385p Gen8, BIOS A28 12/17/2012
[ 788.542260] ffff880437c036b8 f7afc56532a53db9 ffff880437c03670
ffffffff816351f1
[ 788.576332] ffff880437c036a8 ffffffff8107b200 ffff880633e74200
ffff880231674000
[ 788.611943] 0000000000000001 0000000000000003 0000000000000000
ffff880437c03710
[ 788.647241] Call Trace:
[ 788.658817] <IRQ> [<ffffffff816351f1>] dump_stack+0x19/0x1b
[ 788.686193] [<ffffffff8107b200>] warn_slowpath_common+0x70/0xb0
[ 788.713803] [<ffffffff8107b29c>] warn_slowpath_fmt+0x5c/0x80
[ 788.741314] [<ffffffff812f92f3>] ? ___ratelimit+0x93/0x100
[ 788.767018] [<ffffffff81637f49>] skb_warn_bad_offload+0xcd/0xda
[ 788.796117] [<ffffffff8152950c>] skb_checksum_help+0x17c/0x190
[ 788.823392] [<ffffffffa01463a1>] netem_enqueue+0x741/0x7c0 [sch_netem]
[ 788.854487] [<ffffffff8152cb58>] dev_queue_xmit+0x2a8/0x570
[ 788.880870] [<ffffffff8156ae1d>] ip_finish_output+0x53d/0x7d0
...
The problem occurs because netem is not prepared to handle GSO packets (as it
uses skb_checksum_help in its enqueue path, which cannot manipulate these
frames).
The solution I think is to simply segment the skb in a simmilar fashion to the
way we do in __dev_queue_xmit (via validate_xmit_skb), with some minor changes.
When we decide to corrupt an skb, if the frame is GSO, we segment it, corrupt
the first segment, and enqueue the remaining ones.
tested successfully by myself on the latest net kernel, to which this applies
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Jamal Hadi Salim <jhs@mojatatu.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: netem@lists.linux-foundation.org
CC: eric.dumazet@gmail.com
CC: stephen@networkplumber.org
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- a fix for our Distributed ARP Table that makes sure that the input
provided to the hash function during a query is the same as the one
provided during an insert (so to prevent false negatives), by Antonio
Quartulli
- a fix for our new protocol implementation B.A.T.M.A.N. V that ensures
that a hard interface is properly re-activated when it is brought down
and then up again, by Antonio Quartulli
- two fixes respectively to the reference counting of the tt_local_entry
and neigh_node objects, by Sven Eckelmann. Such bug is rather severe
as it would prevent the netdev objects references by batman-adv from
being released after shutdown.
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Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge
Antonio Quartulli says:
====================
In this small batch of patches you have:
- a fix for our Distributed ARP Table that makes sure that the input
provided to the hash function during a query is the same as the one
provided during an insert (so to prevent false negatives), by Antonio
Quartulli
- a fix for our new protocol implementation B.A.T.M.A.N. V that ensures
that a hard interface is properly re-activated when it is brought down
and then up again, by Antonio Quartulli
- two fixes respectively to the reference counting of the tt_local_entry
and neigh_node objects, by Sven Eckelmann. Such bug is rather severe
as it would prevent the netdev objects references by batman-adv from
being released after shutdown.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This is a fairly minimal fixup to the horribly bad behavior of hash_64()
with certain input patterns.
In particular, because the multiplicative value used for the 64-bit hash
was intentionally bit-sparse (so that the multiply could be done with
shifts and adds on architectures without hardware multipliers), some
bits did not get spread out very much. In particular, certain fairly
common bit ranges in the input (roughly bits 12-20: commonly with the
most information in them when you hash things like byte offsets in files
or memory that have block factors that mean that the low bits are often
zero) would not necessarily show up much in the result.
There's a bigger patch-series brewing to fix up things more completely,
but this is the fairly minimal fix for the 64-bit hashing problem. It
simply picks a much better constant multiplier, spreading the bits out a
lot better.
NOTE! For 32-bit architectures, the bad old hash_64() remains the same
for now, since 64-bit multiplies are expensive. The bigger hashing
cleanup will replace the 32-bit case with something better.
The new constants were picked by George Spelvin who wrote that bigger
cleanup series. I just picked out the constants and part of the comment
from that series.
Cc: stable@vger.kernel.org
Cc: George Spelvin <linux@horizon.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull MD fixes from Shaohua Li:
"This update includes several trival fixes. The only important one is
to fix MD bio merge, which has big performance impact"
* tag 'md/4.6-rc6-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
raid5: delete unnecessary warnning
MD: make bio mergeable
md/raid0: remove empty line printk from dump_zones
md/raid0: fix uninitialized variable bug
Pull UDF fix from Jan Kara:
"A fix of a regression in UDF that got introduced in 4.6-rc1 by one of
the charset encoding fixes"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Fix conversion of 'dstring' fields to UTF8
- A serious ACPI fix targeted for stable: lookup strings
were being free:ed.
- Revert two patches from the RCAR driver.
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Merge tag 'gpio-v4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here are some late but important fixes for the v4.6 kernel series.
ACPI and RCAR, so two driver fixes (PM related) and a self-evident
string lookup fix for ACPI GPIOs:
- A serious ACPI fix targeted for stable: lookup strings were being
free'd.
- Revert two patches from the RCAR driver"
* tag 'gpio-v4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpiolib-acpi: Duplicate con_id string when adding it to the crs lookup list
Revert "gpio: rcar: Fine-grained Runtime PM support"
Revert "gpio: rcar: Add Runtime PM handling for interrupts"
Pull networking fixes from David Miller:
1) MODULE_FIRMWARE firmware string not correct for iwlwifi 8000 chips,
from Sara Sharon.
2) Fix SKB size checks in batman-adv stack on receive, from Sven
Eckelmann.
3) Leak fix on mac80211 interface add error paths, from Johannes Berg.
4) Cannot invoke napi_disable() with BH disabled in myri10ge driver,
fix from Stanislaw Gruszka.
5) Fix sign extension problem when computing feature masks in
net_gso_ok(), from Marcelo Ricardo Leitner.
6) lan78xx driver doesn't count packets and packet lengths in its
statistics properly, fix from Woojung Huh.
7) Fix the buffer allocation sizes in pegasus USB driver, from Petko
Manolov.
8) Fix refcount overflows in bpf, from Alexei Starovoitov.
9) Unified dst cache handling introduced a preempt warning in
ip_tunnel, fix by resetting rather then setting the cached route.
From Paolo Abeni.
10) Listener hash collision test fix in soreuseport, from Craig Gallak
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits)
gre: do not pull header in ICMP error processing
net: Implement net_dbg_ratelimited() for CONFIG_DYNAMIC_DEBUG case
tipc: only process unicast on intended node
cxgb3: fix out of bounds read
net/smscx5xx: use the device tree for mac address
soreuseport: Fix TCP listener hash collision
net: l2tp: fix reversed udp6 checksum flags
ip_tunnel: fix preempt warning in ip tunnel creation/updating
samples/bpf: fix trace_output example
bpf: fix check_map_func_compatibility logic
bpf: fix refcnt overflow
drivers: net: cpsw: use of_phy_connect() in fixed-link case
dt: cpsw: phy-handle, phy_id, and fixed-link are mutually exclusive
drivers: net: cpsw: don't ignore phy-mode if phy-handle is used
drivers: net: cpsw: fix segfault in case of bad phy-handle
drivers: net: cpsw: fix parsing of phy-handle DT property in dual_emac config
MAINTAINERS: net: Change maintainer for GRETH 10/100/1G Ethernet MAC device driver
gre: reject GUE and FOU in collect metadata mode
pegasus: fixes reported packet length
pegasus: fixes URB buffer allocation size;
...
Pull sparc fixes from David Miller:
1) Fix panics with SR-IOV, from Babu Moger.
2) Wire up preadv2/pwritev2.
3) Allow proper auto-loading of VIO devices, from John Paul Adrian
Glaubitz.
4) Recognize Sonoma cpus, from Khalid Aziz.
5) Fix bootup regressions caused by syscall trace fixes made recently.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix bootup regressions on some Kconfig combinations.
sparc64: recognize and support Sonoma CPU type
sparc: Implement and wire up vio_hotplug for vio.
sparc: Implement and wire up modalias_show for vio.
sparc/pci: Refactor dev_archdata initialization into pci_init_dev_archdata
sparc/defconfigs: Remove CONFIG_IPV6_PRIVACY
sparc: Write up preadv2/pwritev2 syscalls.
sparc/PCI: Fix for panic while enabling SR-IOV
iptunnel_pull_header expects that IP header was already pulled; with this
expectation, it pulls the tunnel header. This is not true in gre_err.
Furthermore, ipv4_update_pmtu and ipv4_redirect expect that skb->data points
to the IP header.
We cannot pull the tunnel header in this path. It's just a matter of not
calling iptunnel_pull_header - we don't need any of its effects.
Fixes: bda7bb4634 ("gre: Allow multiple protocol listener for gre protocol.")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prior to commit d92cff89a0 ("net_dbg_ratelimited: turn into no-op
when !DEBUG") the implementation of net_dbg_ratelimited() was buggy
for both the DEBUG and CONFIG_DYNAMIC_DEBUG cases.
The bug was that net_ratelimit() was being called and, despite
returning true, nothing was being printed to the console. This
resulted in messages like the following -
"net_ratelimit: %d callbacks suppressed"
with no other output nearby.
After commit d92cff89a0 ("net_dbg_ratelimited: turn into no-op when
!DEBUG") the bug is fixed for the DEBUG case. However, there's no
output at all for CONFIG_DYNAMIC_DEBUG case.
This patch restores debug output (if enabled) for the
CONFIG_DYNAMIC_DEBUG case.
Add a definition of net_dbg_ratelimited() for the CONFIG_DYNAMIC_DEBUG
case. The implementation takes care to check that dynamic debugging is
enabled before calling net_ratelimit().
Fixes: d92cff89a0 ("net_dbg_ratelimited: turn into no-op when !DEBUG")
Signed-off-by: Tim Bingham <tbingham@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We have observed complete lock up of broadcast-link transmission due to
unacknowledged packets never being removed from the 'transmq' queue. This
is traced to nodes having their ack field set beyond the sequence number
of packets that have actually been transmitted to them.
Consider an example where node 1 has sent 10 packets to node 2 on a
link and node 3 has sent 20 packets to node 2 on another link. We
see examples of an ack from node 2 destined for node 3 being treated as
an ack from node 2 at node 1. This leads to the ack on the node 1 to node
2 link being increased to 20 even though we have only sent 10 packets.
When node 1 does get around to sending further packets, none of the
packets with sequence numbers less than 21 are actually removed from the
transmq.
To resolve this we reinstate some code lost in commit d999297c3d ("tipc:
reduce locking scope during packet reception") which ensures that only
messages destined for the receiving node are processed by that node. This
prevents the sequence numbers from getting out of sync and resolves the
packet leakage, thereby resolving the broadcast-link transmission
lock-ups we observed.
While we are aware that this change only patches over a root problem that
we still haven't identified, this is a sanity test that it is always
legitimate to do. It will remain in the code even after we identify and
fix the real problem.
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: John Thompson <john.thompson@alliedtelesis.co.nz>
Signed-off-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
An out of bounds read of 2 bytes was discovered in cxgb3 with KASAN.
t3_config_rss() expects both arrays it gets as parameters to have
terminators. setup_rss(), the caller, forgets to add a terminator to
one of the arrays. Thankfully the iteration in t3_config_rss() stops
anyway, but in the last iteration the check for the terminator
is an out of bounds read.
Add the missing terminator to rspq_map[].
Reported-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This takes the MAC address for smsc75xx/smsc95xx USB network devices
from a the device tree. This is required to get a usable persistent
address on the popular beagleboard, whose hardware designers
accidentally forgot that an ethernet device really requires an a
MAC address to be functional.
The Raspberry Pi also ships smsc9514 without a serial EEPROM, stores
the MAC address in ROM accessible via VC4 firmware.
The smsc75xx and smsc95xx drivers are just two copies of the
same code, so better fix both.
[lkundrak@v3.sk: updated to use of_get_property() as per suggestion from
Arnd, reworded the message and comments a bit]
Tested-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: David S. Miller <davem@davemloft.net>
I forgot to include a check for listener port equality when deciding
if two sockets should belong to the same reuseport group. This was
not caught previously because it's only necessary when two listening
sockets for the same user happen to hash to the same listener bucket.
The same error does not exist in the UDP path.
Fixes: c125e80b8868("soreuseport: fast reuseport TCP socket selection")
Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a bug which causes the behavior of whether to ignore
udp6 checksum of udp6 encapsulated l2tp tunnel contrary to what
userspace program requests.
When the flag `L2TP_ATTR_UDP_ZERO_CSUM6_RX` is set by userspace, it is
expected that udp6 checksums of received packets of the l2tp tunnel
to create should be ignored. In `l2tp_netlink.c`:
`l2tp_nl_cmd_tunnel_create()`, `cfg.udp6_zero_rx_checksums` is set
according to the flag, and then passed to `l2tp_core.c`:
`l2tp_tunnel_create()` and then `l2tp_tunnel_sock_create()`. In
`l2tp_tunnel_sock_create()`, `udp_conf.use_udp6_rx_checksums` is set
the same to `cfg.udp6_zero_rx_checksums`. However, if we want the
checksum to be ignored, `udp_conf.use_udp6_rx_checksums` should be set
to `false`, i.e. be set to the contrary. Similarly, the same should be
done to `udp_conf.use_udp6_tx_checksums`.
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
Acked-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull thermal fixes from Eduardo Valentin:
"A couple of minor fixes for the thermal subsystem.
Specifics in this pull request:
- Fixes in hisilicon thermal driver
- More fixes of unsigned to int type change in thermal_core.c"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: use %d to print S32 parameters
thermal: hisilicon: increase temperature resolution
- cxl: Keep IRQ mappings on context teardown from Michael Neuling
- cxl: Poll for outstanding IRQs when detaching a context from Michael Neuling
- Wire up preadv2 and pwritev2 syscalls from Rui Salvaterra
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Merge tag 'powerpc-4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"A few more powerpc fixes for 4.6:
- cxl: Keep IRQ mappings on context teardown from Michael Neuling
- cxl: Poll for outstanding IRQs when detaching a context from
Michael Neuling
- Wire up preadv2 and pwritev2 syscalls from Rui Salvaterra"
* tag 'powerpc-4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: wire up preadv2 and pwritev2 syscalls
cxl: Poll for outstanding IRQs when detaching a context
cxl: Keep IRQ mappings on context teardown
- Revert cpufreq commit that attempted to fix a problem in the
ondemand/conservative governor code, but did that incorrectly
and introduced another problem instead (Rafael Wysocki).
- Fix incorrect decoding of MSR contents related to the
Turbo Activation Ratio (TAR) handling in the intel_pstate
driver (Srinivas Pandruvada).
/
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Merge tag 'pm+acpi-4.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"One revert of a recent cpufreq commit that introduced a regression and
a fix for intel_pstate's Turbo Activation Ratio handling code.
Specifics:
- Revert cpufreq commit that attempted to fix a problem in the
ondemand/conservative governor code, but did that incorrectly and
introduced another problem instead (Rafael Wysocki).
- Fix incorrect decoding of MSR contents related to the Turbo
Activation Ratio (TAR) handling in the intel_pstate driver
(Srinivas Pandruvada)"
* tag 'pm+acpi-4.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Fix processing for turbo activation ratio
Revert "cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC"
Pull drm fixes from Dave Airlie:
"A few fixes all over the place:
radeon is probably the biggest standout, it's a fix for screen
corruption or hung black outputs so I thought it was worth pulling in.
Otherwise some amdgpu power control fixes, some misc vmwgfx fixes, one
etnaviv fix, one virtio-gpu fix, two DP MST fixes, and a single TTM
fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/vmwgfx: Fix order of operation
drm/vmwgfx: use vmw_cmd_dx_cid_check for query commands.
drm/vmwgfx: Enable SVGA_3D_CMD_DX_SET_PREDICATION
drm/amdgpu: disable vm interrupts with vm_fault_stop=2
drm/amdgpu: print a message if ATPX dGPU power control is missing
Revert "drm/amdgpu: disable runtime pm on PX laptops without dGPU power control"
drm/radeon: fix vertical bars appear on monitor (v2)
drm/ttm: fix kref count mess in ttm_bo_move_to_lru_tail
drm/virtio: send vblank event after crtc updates
drm/dp/mst: Restore primary hub guid on resume
drm/dp/mst: Get validated port ref in drm_dp_update_payload_part1()
drm/etnaviv: don't move linear memory window on 3D cores without MC2.0
- A number of collected fixes for oopses, memory corruptions, deadlocks,
etc. All of these fixes are small (many only 5-10 lines), obvious,
and tested.
- Fix for the security issue related to the use of write for
bi-directional communications.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma fixes from Doug Ledford:
"Final set of -rc fixes for 4.6.
I've collected up a number of patches that are all pretty small with
the exception of only a couple. The hfi1 driver has a number of
important patches, and it is what really drives the line count of this
pull request up. These are all small and I've got this kernel built
and running in the test lab (I have most of the hardware, I think nes
is the only thing in this patch set that I can't say I've personally
tested and have up and running).
Summary:
- A number of collected fixes for oopses, memory corruptions,
deadlocks, etc. All of these fixes are small (many only 5-10
lines), obvious, and tested.
- Fix for the security issue related to the use of write for
bi-directional communications"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
RDMA/nes: don't leak skb if carrier down
IB/security: Restrict use of the write() interface
IB/hfi1: Use kernel default llseek for ui device
IB/hfi1: Don't attempt to free resources if initialization failed
IB/hfi1: Fix missing lock/unlock in verbs drain callback
IB/rdmavt: Fix send scheduling
IB/hfi1: Prevent unpinning of wrong pages
IB/hfi1: Fix deadlock caused by locking with wrong scope
IB/hfi1: Prevent NULL pointer deferences in caching code
MAINTAINERS: Update iser/isert maintainer contact info
IB/mlx5: Expose correct max_sge_rd limit
RDMA/iw_cxgb4: Fix bar2 virt addr calculation for T4 chips
iw_cxgb4: handle draining an idle qp
iw_cxgb3: initialize ibdev.iwcm->ifname for port mapping
iw_cxgb4: initialize ibdev.iwcm->ifname for port mapping
IB/core: Don't drain non-existent rq queue-pair
IB/core: Fix oops in ib_cache_gid_set_default_gid
If device has R5_LOCKED set, it's legit device has R5_SkipCopy set and page !=
orig_page. After R5_LOCKED is clear, handle_stripe_clean_event will clear the
SkipCopy flag and set page to orig_page. So the warning is unnecessary.
Reported-by: Joey Liao <joeyliao@qnap.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Kangjie Lu
Uwe Kleine-König
Matthias Brugger
Linus Torvalds
Nicolas Dichtel
Florian Fainelli
David S. Miller
Sowmini Varadhan
Alexander Duyck
Anna-Maria Gleixner
Sergei Shtylyov
Matthew Finlay
Gal Pressman
Ping Cheng
Miklos Szeredi
Neil Horman
Jiri Benc
Tim Bingham
Hamish Martin
Michal Schmidt
Arnd Bergmann
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