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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
"Two libata driver specific fixes for v4.8-rc4. Nothing too scary"
* 'for-4.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
pata_ninja32: Avoid corrupting status flags
ahci: disable correct irq for dummy ports
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Ninja32 needs to set some flags to indicate it does 32bit IO. However it currently assigns this which
loses the initializing flag and causes a warning spew. Fix it to use a logical or as is intended.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Tested-by: Ellmar Stelnberger <estellnb@elstel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
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irq already contains the interrupt number for the port, don't add the
port index to it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: d684a90d38e2 ("ahci: per-port msix support")
Cc: stable@vger.kernel.org v4.5+
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"Two fixes for cgroup.
- There still was a hole in enforcing cpuset rules, fixed by Li.
- The recent switch to global percpu_rwseom for threadgroup locking
revealed a couple issues in how percpu_rwsem is implemented and
used by cgroup. Balbir found that the read locking section was too
wide unnecessarily including operations which can often depend on
IOs. With percpu_rwsem updates (coming through a different tree)
and reduction of read locking section, all the reported locking
latency issues, including the android one, are resolved.
It looks like we can keep global percpu_rwsem locking for now. If
there actually are cases which can't be resolved, we can go back to
more complex per-signal_struct locking"
* 'for-4.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork
cpuset: make sure new tasks conform to the current config of the cpuset
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cgroup_threadgroup_rwsem is acquired in read mode during process exit
and fork. It is also grabbed in write mode during
__cgroups_proc_write(). I've recently run into a scenario with lots
of memory pressure and OOM and I am beginning to see
systemd
__switch_to+0x1f8/0x350
__schedule+0x30c/0x990
schedule+0x48/0xc0
percpu_down_write+0x114/0x170
__cgroup_procs_write.isra.12+0xb8/0x3c0
cgroup_file_write+0x74/0x1a0
kernfs_fop_write+0x188/0x200
__vfs_write+0x6c/0xe0
vfs_write+0xc0/0x230
SyS_write+0x6c/0x110
system_call+0x38/0xb4
This thread is waiting on the reader of cgroup_threadgroup_rwsem to
exit. The reader itself is under memory pressure and has gone into
reclaim after fork. There are times the reader also ends up waiting on
oom_lock as well.
__switch_to+0x1f8/0x350
__schedule+0x30c/0x990
schedule+0x48/0xc0
jbd2_log_wait_commit+0xd4/0x180
ext4_evict_inode+0x88/0x5c0
evict+0xf8/0x2a0
dispose_list+0x50/0x80
prune_icache_sb+0x6c/0x90
super_cache_scan+0x190/0x210
shrink_slab.part.15+0x22c/0x4c0
shrink_zone+0x288/0x3c0
do_try_to_free_pages+0x1dc/0x590
try_to_free_pages+0xdc/0x260
__alloc_pages_nodemask+0x72c/0xc90
alloc_pages_current+0xb4/0x1a0
page_table_alloc+0xc0/0x170
__pte_alloc+0x58/0x1f0
copy_page_range+0x4ec/0x950
copy_process.isra.5+0x15a0/0x1870
_do_fork+0xa8/0x4b0
ppc_clone+0x8/0xc
In the meanwhile, all processes exiting/forking are blocked almost
stalling the system.
This patch moves the threadgroup_change_begin from before
cgroup_fork() to just before cgroup_canfork(). There is no nee to
worry about threadgroup changes till the task is actually added to the
threadgroup. This avoids having to call reclaim with
cgroup_threadgroup_rwsem held.
tj: Subject and description edits.
Signed-off-by: Balbir Singh <bsingharora@gmail.com>
Acked-by: Zefan Li <lizefan@huawei.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Tejun Heo <tj@kernel.org>
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A new task inherits cpus_allowed and mems_allowed masks from its parent,
but if someone changes cpuset's config by writing to cpuset.cpus/cpuset.mems
before this new task is inserted into the cgroup's task list, the new task
won't be updated accordingly.
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fix from Guenter Roeck:
"Add missing sysfs attribute group terminator to it87 driver"
* tag 'hwmon-for-linus-v4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (it87) Add missing sysfs attribute group terminator
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Attribute array it87_attributes_in lacks its NULL terminator,
causing random behavior when operating on the attribute group.
Fixes: 52929715634a ("hwmon: (it87) Use is_visible for voltage sensors")
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Fix bugs that could cause kernel deadlocks or file system corruption
while moving xattrs to expand the extended inode.
Also add some sanity checks to the block group descriptors to make
sure we don't end up overwriting the superblock"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: avoid deadlock when expanding inode size
ext4: properly align shifted xattrs when expanding inodes
ext4: fix xattr shifting when expanding inodes part 2
ext4: fix xattr shifting when expanding inodes
ext4: validate that metadata blocks do not overlap superblock
ext4: reserve xattr index for the Hurd
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When we need to move xattrs into external xattr block, we call
ext4_xattr_block_set() from ext4_expand_extra_isize_ea(). That may end
up calling ext4_mark_inode_dirty() again which will recurse back into
the inode expansion code leading to deadlocks.
Protect from recursion using EXT4_STATE_NO_EXPAND inode flag and move
its management into ext4_expand_extra_isize_ea() since its manipulation
is safe there (due to xattr_sem) from possible races with
ext4_xattr_set_handle() which plays with it as well.
CC: stable@vger.kernel.org # 4.4.x
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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We did not count with the padding of xattr value when computing desired
shift of xattrs in the inode when expanding i_extra_isize. As a result
we could create unaligned start of inline xattrs. Account for alignment
properly.
CC: stable@vger.kernel.org # 4.4.x-
Signed-off-by: Jan Kara <jack@suse.cz>
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When multiple xattrs need to be moved out of inode, we did not properly
recompute total size of xattr headers in the inode and the new header
position. Thus when moving the second and further xattr we asked
ext4_xattr_shift_entries() to move too much and from the wrong place,
resulting in possible xattr value corruption or general memory
corruption.
CC: stable@vger.kernel.org # 4.4.x
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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The code in ext4_expand_extra_isize_ea() treated new_extra_isize
argument sometimes as the desired target i_extra_isize and sometimes as
the amount by which we need to grow current i_extra_isize. These happen
to coincide when i_extra_isize is 0 which used to be the common case and
so nobody noticed this until recently when we added i_projid to the
inode and so i_extra_isize now needs to grow from 28 to 32 bytes.
The result of these bugs was that we sometimes unnecessarily decided to
move xattrs out of inode even if there was enough space and we often
ended up corrupting in-inode xattrs because arguments to
ext4_xattr_shift_entries() were just wrong. This could demonstrate
itself as BUG_ON in ext4_xattr_shift_entries() triggering.
Fix the problem by introducing new isize_diff variable and use it where
appropriate.
CC: stable@vger.kernel.org # 4.4.x
Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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A number of fuzzing failures seem to be caused by allocation bitmaps
or other metadata blocks being pointed at the superblock.
This can cause kernel BUG or WARNings once the superblock is
overwritten, so validate the group descriptor blocks to make sure this
doesn't happen.
Cc: stable@vger.kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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The Hurd is using inode fields which restricts it from using more
advanced ext4 file system features, due to design choices made over a
decade ago. By giving the Hurd an extended attribute index field we
allow it to move the translator and author fields out of the core
inode fields, and hopefully we can get rid of ugly hacks such as
EXT4_OS_HURD and EXT4_MOUNT2_HURD_COMPAT somday.
For more information please see:
https://summerofcode.withgoogle.com/projects/#5869799859027968
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Pull networking fixes from David Miller:
1) Segregate namespaces properly in conntrack dumps, from Liping Zhang.
2) tcp listener refcount fix in netfilter tproxy, from Eric Dumazet.
3) Fix timeouts in qed driver due to xmit_more, from Yuval Mintz.
4) Fix use-after-free in tcp_xmit_retransmit_queue().
5) Userspace header fixups (use of __u32, missing includes, etc.) from
Mikko Rapeli.
6) Further refinements to fragmentation wrt gso and tunnels, from
Shmulik Ladkani.
7) Trigger poll correctly for zero length UDP packets, from Eric
Dumazet.
8) TCP window scaling fix, also from Eric Dumazet.
9) SLAB_DESTROY_BY_RCU is not relevant any more for UDP sockets.
10) Module refcount leak in qdisc_create_dflt(), from Eric Dumazet.
11) Fix deadlock in cp_rx_poll() of 8139cp driver, from Gao Feng.
12) Memory leak in rhashtable's alloc_bucket_locks(), from Eric Dumazet.
13) Add new device ID to alx driver, from Owen Lin.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (83 commits)
Add Killer E2500 device ID in alx driver.
net: smc91x: fix SMC accesses
Documentation: networking: dsa: Remove platform device TODO
net/mlx5: Increase number of ethtool steering priorities
net/mlx5: Add error prints when validate ETS failed
net/mlx5e: Fix memory leak if refreshing TIRs fails
net/mlx5e: Add ethtool counter for TX xmit_more
net/mlx5e: Fix ethtool -g/G rx ring parameter report with striding RQ
net/mlx5e: Don't wait for SQ completions on close
net/mlx5e: Don't post fragmented MPWQE when RQ is disabled
net/mlx5e: Don't wait for RQ completions on close
net/mlx5e: Limit UMR length to the device's limitation
rhashtable: fix a memory leak in alloc_bucket_locks()
sfc: fix potential stack corruption from running past stat bitmask
team: loadbalance: push lacpdus to exact delivery
net: hns: dereference ppe_cb->ppe_common_cb if it is non-null
8139cp: Fix one possible deadloop in cp_rx_poll
i40e: Change some init flow for the client
Revert "phy: IRQ cannot be shared"
net: dsa: bcm_sf2: Fix race condition while unmasking interrupts
...
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit b70661c70830 ("net: smc91x: use run-time configuration on all ARM
machines") broke some ARM platforms through several mistakes. Firstly,
the access size must correspond to the following rule:
(a) at least one of 16-bit or 8-bit access size must be supported
(b) 32-bit accesses are optional, and may be enabled in addition to
the above.
Secondly, it provides no emulation of 16-bit accesses, instead blindly
making 16-bit accesses even when the platform specifies that only 8-bit
is supported.
Reorganise smc91x.h so we can make use of the existing 16-bit access
emulation already provided - if 16-bit accesses are supported, use
16-bit accesses directly, otherwise if 8-bit accesses are supported,
use the provided 16-bit access emulation. If neither, BUG(). This
exactly reflects the driver behaviour prior to the commit being fixed.
Since the conversion incorrectly cut down the available access sizes on
several platforms, we also need to go through every platform and fix up
the overly-restrictive access size: Arnd assumed that if a platform can
perform 32-bit, 16-bit and 8-bit accesses, then only a 32-bit access
size needed to be specified - not so, all available access sizes must
be specified.
This likely fixes some performance regressions in doing this: if a
platform does not support 8-bit accesses, 8-bit accesses have been
emulated by performing a 16-bit read-modify-write access.
Tested on the Intel Assabet/Neponset platform, which supports only 8-bit
accesses, which was broken by the original commit.
Fixes: b70661c70830 ("net: smc91x: use run-time configuration on all ARM machines")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit 83c0afaec7b7 ("net: dsa: Add new binding implementation"),
the shortcomings of the dsa platform device have been addressed, remove
that TODO item.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Saeed Mahameed says:
====================
Mellanox 100G mlx5 fixes 2016-08-29
This series contains some bug fixes for the mlx5 core and mlx5
ethernet driver.
From Saeed, Fix UMR to consider hardware translation table field
size limitation when calculating the maximum number of MTTs required
by the driver. Three patches to speed-up netdevice close time by
serializing channel (SQs & RQs) destruction rather than issuing and
waiting for hardware interrupts to free them.
From Eran, Fix ethtool ring parameter reporting for striding RQ layout.
Add error prints on ETS validation failure.
From Kamal, Fix memory leak on error flow.
From Maor, Fix ethtool steering priorities number.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ethtool has 11 flow tables, each flow table has its own priority.
Increase the number of priorities to be aligned with the number of flow
tables.
Fixes: 1174fce8d141 ('net/mlx5e: Support l3/l4 flow type specs in ethtool flow steering')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Upon set ETS failure due to user invalid input, add error prints to
specify the exact error to the user.
Fixes: cdcf11212b22 ('net/mlx5e: Validate BW weight values of ETS')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Free 'in' command object also when mlx5_core_modify_tir fails.
Fixes: 724b2aa15126 ("net/mlx5e: TIRs management refactoring")
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a counter in ethtool for the number of times that
TX xmit_more was used.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver RQ has two possible configurations: striding RQ and
non-striding RQ. Until this patch, the driver always reported the
number of hardware WQEs (ring descriptors). For non striding RQ
configuration, this was OK since we have one WQE per pending packet
For striding RQ, multiple packets can fit into one WQE. For better
user experience we normalize the rx_pending parameter (size of wqe/mtu)
as the average ring size in case of striding RQ.
Fixes: 461017cb006a ('net/mlx5e: Support RX multi-packet WQE ...')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of asking the firmware to flush the SQ (Send Queue) via
asynchronous completions when moved to error, we handle SQ flush
manually (mlx5e_free_tx_descs) same as we did when SQ flush got
timed out or on tx_timeout.
This will reduce SQs flush time and speedup interface down procedure.
Moved mlx5e_free_tx_descs to the end of en_tx.c for tx
critical code locality.
Fixes: 29429f3300a3 ('net/mlx5e: Timeout if SQ doesn't flush during close')
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ICO (Internal control operations) SQ (Send Queue) is closed/disabled
after RQ (Receive Queue). After RQ is closed an ICO SQ completion
might post a fragmented MPWQE (Multi Packet Work Queue Element) into
that RQ.
As on regular RQ post, check if we are allowed to post to that
RQ (RQ is enabled). Cleanup in-progress UMR MPWQE on mlx5e_free_rx_descs
if needed.
Fixes: bc77b240b3c5 ('net/mlx5e: Add fragmented memory support for RX multi packet WQE')
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This will significantly reduce receive queue flush time on interface
down.
Instead of asking the firmware to flush the RQ (Receive Queue) via
asynchronous completions when moved to error, we handle RQ flush
manually (mlx5e_free_rx_descs) same as we did when RQ flush got timed
out.
This will reduce RQs flush time and speedup interface down procedure
(ifconfig down) from 6 sec to 0.3 sec on a 48 cores system.
Moved mlx5e_free_rx_descs en_main.c where it is needed, to keep en_rx.c
free form non critical data path code for better code locality.
Fixes: 6cd392a082de ('net/mlx5e: Handle RQ flush in error cases')
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ConnectX-4 UMR (User Memory Region) MTT translation table offset in WQE
is limited to U16_MAX, before this patch we ignored that limitation and
requested the maximum possible UMR translation length that the netdev
might need (MAX channels * MAX pages per channel).
In case of a system with #cores > 32 and when linear WQE allocation fails,
falling back to using UMR WQEs will cause the RQ (Receive Queue) to get
stuck.
Here we limit UMR length to min(U16_MAX, max required pages) (while
considering the required alignments) on driver load, by default U16_MAX is
sufficient since the default RX rings value guarantees that we are in
range, dynamically (on set_ringparam/set_channels) we will check if the
new required UMR length (num mtts) is still in range, if not, fail the
request.
Fixes: bc77b240b3c5 ('net/mlx5e: Add fragmented memory support for RX multi packet WQE')
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If vmalloc() was successful, do not attempt a kmalloc_array()
Fixes: 4cf0b354d92e ("rhashtable: avoid large lock-array allocations")
Reported-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On 32-bit systems, mask is only an array of 3 longs, not 4, so don't try
to write to mask[3].
Also include build-time checks in case the size of the bitmask changes.
Fixes: 3c36a2aded8c ("sfc: display vadaptor statistics for all interfaces")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Johan Hedberg says:
====================
pull request: bluetooth 2016-08-25
Here are a couple of important Bluetooth fixes for the 4.8 kernel:
- Memory leak fix for HCI requests
- Fix sk_filter handling with L2CAP
- Fix sock_recvmsg behavior when MSG_TRUNC is not set
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Similar to bt_sock_recvmsg MSG_TRUNC shall be checked using the original
flags not msg_flags.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Commit b5f34f9420b50c9b5876b9a2b68e96be6d629054 attempt to introduce
proper handling for MSG_TRUNC but recv and variants should still work
as read if no flag is passed, but because the code may set MSG_TRUNC to
msg->msg_flags that shall not be used as it may cause it to be behave as
if MSG_TRUNC is always, so instead of using it this changes the code to
use the flags parameter which shall contain the original flags.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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During an audit for sk_filter(), we found that rx_busy_skb handling
in l2cap_sock_recv_cb() and l2cap_sock_recvmsg() looks not quite as
intended.
The assumption from commit e328140fdacb ("Bluetooth: Use event-driven
approach for handling ERTM receive buffer") is that errors returned
from sock_queue_rcv_skb() are due to receive buffer shortage. However,
nothing should prevent doing a setsockopt() with SO_ATTACH_FILTER on
the socket, that could drop some of the incoming skbs when handled in
sock_queue_rcv_skb().
In that case sock_queue_rcv_skb() will return with -EPERM, propagated
from sk_filter() and if in L2CAP_MODE_ERTM mode, wrong assumption was
that we failed due to receive buffer being full. From that point onwards,
due to the to-be-dropped skb being held in rx_busy_skb, we cannot make
any forward progress as rx_busy_skb is never cleared from l2cap_sock_recvmsg(),
due to the filter drop verdict over and over coming from sk_filter().
Meanwhile, in l2cap_sock_recv_cb() all new incoming skbs are being
dropped due to rx_busy_skb being occupied.
Instead, just use __sock_queue_rcv_skb() where an error really tells that
there's a receive buffer issue. Split the sk_filter() and enable it for
non-segmented modes at queuing time since at this point in time the skb has
already been through the ERTM state machine and it has been acked, so dropping
is not allowed. Instead, for ERTM and streaming mode, call sk_filter() in
l2cap_data_rcv() so the packet can be dropped before the state machine sees it.
Fixes: e328140fdacb ("Bluetooth: Use event-driven approach for handling ERTM receive buffer")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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In hci_req_sync_complete the event skb is referenced in hdev->req_skb.
It is used (via hci_req_run_skb) from either __hci_cmd_sync_ev which will
pass the skb to the caller, or __hci_req_sync which leaks.
unreferenced object 0xffff880005339a00 (size 256):
comm "kworker/u3:1", pid 1011, jiffies 4294671976 (age 107.389s)
backtrace:
[<ffffffff818d89d9>] kmemleak_alloc+0x49/0xa0
[<ffffffff8116bba8>] kmem_cache_alloc+0x128/0x180
[<ffffffff8167c1df>] skb_clone+0x4f/0xa0
[<ffffffff817aa351>] hci_event_packet+0xc1/0x3290
[<ffffffff8179a57b>] hci_rx_work+0x18b/0x360
[<ffffffff810692ea>] process_one_work+0x14a/0x440
[<ffffffff81069623>] worker_thread+0x43/0x4d0
[<ffffffff8106ead4>] kthread+0xc4/0xe0
[<ffffffff818dd38f>] ret_from_fork+0x1f/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
Signed-off-by: Frédéric Dalleau <frederic.dalleau@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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When team is in bridge and LACP is utilized, LACPDU packets are pushed
to userspace using raw socket and there they are processed. However,
since 8626c56c8279b, LACPDU skbs are dropped by bridge rx_handler so
they never reach packet handlers in rx path. Fix this by explicity treat
LACPDUs to be pushed to exact delivery in team rx_handler.
Reported-by: Ido Schimmel <idosch@mellanox.com>
Fixes: 8626c56c8279b ("bridge: fix potential use-after-free when hook returns QUEUE or STOLEN verdict")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ppe_cb->ppe_common_cb is being dereferenced before a null check is
being made on it. If ppe_cb->ppe_common_cb is null then we end up
with a null pointer dereference when assigning dsaf_dev. Fix this
by moving the initialisation of dsaf_dev once we know
ppe_cb->ppe_common_cb is OK to dereference.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When cp_rx_poll does not get enough packet, it will check the rx
interrupt status again. If so, it will jumpt to rx_status_loop again.
But the goto jump resets the rx variable as zero too.
As a result, it causes one possible deadloop. Assume this case,
rx_status_loop only gets the packet count which is less than budget,
and (cpr16(IntrStatus) & cp_rx_intr_mask) condition is always true.
It causes the deadloop happens and system is blocked.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This change makes a common flow for Client instance open during init
and reset path. The Client subtask can handle both the cases instead of
making a separate notify_client_of_open call.
Also it may fix a bug during reset where the service task was leaking
some memory and causing issues.
Change-Id: I7232a32fd52b82e863abb54266fa83122f80a0cd
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts:
commit 33c133cc7598 ("phy: IRQ cannot be shared")
On hardware with multiple PHY devices hooked up to the same IRQ line, allow
them to share it.
Sergei Shtylyov says:
"I'm not sure now what was the reason I concluded that the IRQ sharing
was impossible... most probably I thought that the kernel IRQ handling
code exited the loop over the IRQ actions once IRQ_HANDLED was returned
-- which is obviously not so in reality..."
Signed-off-by: Xander Huff <xander.huff@ni.com>
Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We kept shadow copies of which interrupt sources we have enabled and
disabled, but due to an order bug in how intrl2_mask_clear was defined,
we could run into the following scenario:
CPU0 CPU1
intrl2_1_mask_clear(..)
sets INTRL2_CPU_MASK_CLEAR
bcm_sf2_switch_1_isr
read INTRL2_CPU_STATUS and masks with stale
irq1_mask value
updates irq1_mask value
Which would make us loop again and again trying to process and interrupt
we are not clearing since our copy of whether it was enabled before
still indicates it was not. Fix this by updating the shadow copy first,
and then unasking at the HW level.
Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Should qdisc_alloc() fail, we must release the module refcount
we got right before.
Fixes: 6da7c8fcbcbd ("qdisc: allow setting default queuing discipline")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix to return a negative error code in enable_mcast() error handling
case, and release udp socket when necessary.
Fixes: d0f91938bede ("tipc: add ip/udp media type")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make the function mlxsw_router_neigh_construct search the rif according
to the neighbour dev other than the dev that was passed to the ndo, thus
allowing creating neigbhours upon stacked devices.
Fixes: 6cf3c971dc84 ("mlxsw: spectrum_router: Add private neigh table")
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case we have a layer 3 interface on top of a bridge (VLAN / FID RIF),
then we should flood the following packet types to the router:
* Broadcast: If DIP is the broadcast address of the interface, then we
need to be able to get it to CPU by trapping it following route lookup.
* Reserved IP multicast (224.0.0.X): Some control packets (e.g. OSPF)
use this range and are trapped in the router block.
Fixes: 99f44bb3527b ("mlxsw: spectrum: Enable L3 interfaces on top of bridge devices")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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inet_diag_find_one_icsk takes a reference to a socket that is not
released if sock_diag_destroy returns an error. Fix by changing
tcp_diag_destroy to manage the refcnt for all cases and remove
the sock_put calls from tcp_abort.
Fixes: c1e64e298b8ca ("net: diag: Support destroying TCP sockets")
Reported-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of using sock_tx_timestamp, use skb_tx_timestamp to record
software transmit timestamp of a packet.
sock_tx_timestamp resets and overrides the tx_flags of the skb.
The function is intended to be called from within the protocol
layer when creating the skb, not from a device driver. This is
inconsistent with other drivers and will cause issues for TCP.
In TCP, we intend to sample the timestamps for the last byte
for each sendmsg/sendpage. For that reason, tcp_sendmsg calls
tcp_tx_timestamp only with the last skb that it generates.
For example, if a 128KB message is split into two 64KB packets
we want to sample the SND timestamp of the last packet. The current
code in the tun driver, however, will result in sampling the SND
timestamp for both packets.
Also, when the last packet is split into smaller packets for
retranmission (see tcp_fragment), the tun driver will record
timestamps for all of the retransmitted packets and not only the
last packet.
Fixes: eda297729171 (tun: Support software transmit time stamping.)
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Francis Yan <francisyyan@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After commit ca065d0cf80f ("udp: no longer use SLAB_DESTROY_BY_RCU")
we do not need this special allocation mode anymore, even if it is
harmless.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The function sctp_diag_dump_one() currently performs a memcpy()
of 64 bytes from a 16 byte field into another 16 byte field. Fix
by using correct size, use sizeof to obtain correct size instead
of using a hard-coded constant.
Fixes: 8f840e47f190 ("sctp: add the sctp_diag.c file")
Signed-off-by: Lance Richardson <lrichard@redhat.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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