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Pointers should be printed with %p or %px rather than
cast to long type and printed with %8.8lx.
Change %8.8lx to %p to print the pointer.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pointers should be printed with %p or %px rather than
cast to long type and printed with %x.
Change %x to %p to print the pointers.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ido Schimmel says:
====================
mlxsw: Small routing improvements
Patch #1 switches the driver to use a unique and stable ECMP/LAG seed.
This allows for consistent behavior across reboots and avoids hash
polarization at the same time.
Patch #2 relaxes the FIB rule validation in the driver to allow the
installation of rules that direct locally generated traffic (iif=lo).
This does not result in a discrepancy between both data paths because
packets received by the device would never match such rules.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, mlxsw does not support policy-based routing (PBR) and
therefore forbids the installation of non-default FIB rules except for
the l3mdev rule which is used for VRFs.
Relax the check to allow the installation of FIB rules that would never
match packets received by the device. Specifically, if the iif is that
of the loopback netdev. This is useful for users that need to redirect
locally generated packets based on FIB rules.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Tested-by: Alexander Petrovskiy <alexpe@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to get a consistent behavior of traffic flows across reboots /
module unload, we need to use the same ECMP/LAG seed.
Calculate the seed by hashing the base MAC of the device. This results
in a seed that is both unique (to avoid polarization) and consistent.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When device refuses the offload in tls_set_device_offload_rx()
it calls tls_sw_free_resources_rx() to clean up software context
state.
Unfortunately, tls_sw_free_resources_rx() does not free all
the state tls_set_sw_offload() allocated - it leaks IV and
sequence number buffers. All other code paths which lead to
tls_sw_release_resources_rx() (which tls_sw_free_resources_rx()
calls) free those right before the call.
Avoid the leak by moving freeing of iv and rec_seq into
tls_sw_release_resources_rx().
Fixes: 4799ac81e52a ("tls: Add rx inline crypto offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If device supports offload, but offload fails tls_set_device_offload_rx()
will call tls_sw_free_resources_rx() which (unhelpfully) releases
and reacquires the socket lock.
For a small fix release and reacquire the device_offload_lock.
Fixes: 4799ac81e52a ("tls: Add rx inline crypto offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The run_afpackettests will be marked as passed regardless the return
value of those sub-tests in the script:
--------------------
running psock_tpacket test
--------------------
[FAIL]
selftests: run_afpackettests [PASS]
Fix this by changing the return value for each tests.
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull NFS client bugfix from Trond Myklebust:
"Fix a regression in which an RPC call can be tagged with an error
despite the transmission being successful"
* tag 'nfs-for-5.1-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: Ignore queue transmission errors on successful transmission
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three minor fixes: two obvious ones in drivers and a fix to the SG_IO
path to correctly return status on error"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: aic7xxx: fix EISA support
Revert "scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO"
scsi: core: set result when the command cannot be dispatched
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Pull block fixes from Jens Axboe:
"A set of small fixes that should go into this series. This contains:
- Removal of unused queue member (Hou)
- Overflow bvec fix (Ming)
- Various little io_uring tweaks (me)
- kthread parking
- Only call cpu_possible() for verified CPU
- Drop unused 'file' argument to io_file_put()
- io_uring_enter vs io_uring_register deadlock fix
- CQ overflow fix
- BFQ internal depth update fix (me)"
* tag 'for-linus-20190420' of git://git.kernel.dk/linux-block:
block: make sure that bvec length can't be overflow
block: kill all_q_node in request_queue
io_uring: fix CQ overflow condition
io_uring: fix possible deadlock between io_uring_{enter,register}
io_uring: drop io_file_put() 'file' argument
bfq: update internal depth state when queue depth changes
io_uring: only test SQPOLL cpu after we've verified it
io_uring: park SQPOLL thread if it's percpu
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pill i3c fixes from Boris Brezillon:
- fix the random PID check
- fix the disable controller logic in the designware driver
- fix I3C entry in MAINTAINERS
* tag 'i3c/fixes-for-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
MAINTAINERS: Fix the I3C entry
i3c: dw: Fix dw_i3c_master_disable controller by using correct mask
i3c: Fix the verification of random PID
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Two core fixes for long-standing bugs for the races at concurrent
device creation and deletion that were (unsurprisingly) spotted by
syzkaller with usb-fuzzer.
The rest are usual small HD-audio fixes"
* tag 'sound-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - add two more pin configuration sets to quirk table
ALSA: core: Fix card races between register and disconnect
ALSA: info: Fix racy addition/deletion of nodes
ALSA: hda: Initialize power_state field properly
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
"Misc clocksource driver fixes, and a sched-clock wrapping fix"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers/sched_clock: Prevent generic sched_clock wrap caused by tick_freeze()
clocksource/drivers/timer-ti-dm: Remove omap_dm_timer_set_load_start
clocksource/drivers/oxnas: Fix OX820 compatible
clocksource/drivers/arm_arch_timer: Remove unneeded pr_fmt macro
clocksource/drivers/npcm: select TIMER_OF
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Misc fixes:
- various tooling fixes
- kretprobe fixes
- kprobes annotation fixes
- kprobes error checking fix
- fix the default events for AMD Family 17h CPUs
- PEBS fix
- AUX record fix
- address filtering fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kprobes: Avoid kretprobe recursion bug
kprobes: Mark ftrace mcount handler functions nokprobe
x86/kprobes: Verify stack frame on kretprobe
perf/x86/amd: Add event map for AMD Family 17h
perf bpf: Return NULL when RB tree lookup fails in perf_env__find_btf()
perf tools: Fix map reference counting
perf evlist: Fix side band thread draining
perf tools: Check maps for bpf programs
perf bpf: Return NULL when RB tree lookup fails in perf_env__find_bpf_prog_info()
tools include uapi: Sync sound/asound.h copy
perf top: Always sample time to satisfy needs of use of ordered queuing
perf evsel: Use hweight64() instead of hweight_long(attr.sample_regs_user)
tools lib traceevent: Fix missing equality check for strcmp
perf stat: Disable DIR_FORMAT feature for 'perf stat record'
perf scripts python: export-to-sqlite.py: Fix use of parent_id in calls_view
perf header: Fix lock/unlock imbalances when processing BPF/BTF info
perf/x86: Fix incorrect PEBS_REGS
perf/ring_buffer: Fix AUX record suppression
perf/core: Fix the address filtering fix
kprobes: Fix error check when reusing optimized probes
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes all over the place: a console spam fix, section attributes
fixes, a KASLR fix, a TLB stack-variable alignment fix, a reboot
quirk, boot options related warnings fix, an LTO fix, a deadlock fix
and an RDT fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/intel: Lower the "ENERGY_PERF_BIAS: Set to normal" message's log priority
x86/cpu/bugs: Use __initconst for 'const' init data
x86/mm/KASLR: Fix the size of the direct mapping section
x86/Kconfig: Fix spelling mistake "effectivness" -> "effectiveness"
x86/mm/tlb: Revert "x86/mm: Align TLB invalidation info"
x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T
x86/mm: Prevent bogus warnings with "noexec=off"
x86/build/lto: Fix truncated .bss with -fdata-sections
x86/speculation: Prevent deadlock on ssb_state::lock
x86/resctrl: Do not repeat rdtgroup mode initialization
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"A deadline scheduler warning/race fix, and a cfs_period_us quota
calculation workaround where the real fix looks too involved to merge
immediately"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Correctly handle active 0-lag timers
sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
"A lockdep warning fix and a script execution fix when atomics are
generated"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/atomics: Don't assume that scripts are executable
locking/lockdep: Make lockdep_unregister_key() honor 'debug_locks' again
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By default VFs are not trusted. Add ndo_set_vf_trust support to toggle
a new per-VF bit. Coupled with FW with this capability allows a
trusted VF to change its MAC even after being administratively set by
the PF. Also populate the trusted field on ndo_get_vf_config. Add the
same ndo to the representors.
Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Huazhong Tan says:
====================
net: hns3: add some DFX info for HNS3 driver
This patch-set adds some DFX information to HNS3 driver, for easily
debug some problems, and fixes some related bugs.
[patch 1/12 - 4/12] adds debug info about reset & interrupt events
[patch 5/12 - 7/12] adds debug info about TX time out & fixes
related bugs
[patch 8/12] adds support for setting netif message level
[patch 9/12 - 10/12] adds debugfs command to dump NCL & MAC info
[patch 11/12] adds VF's queue statistics info updating
[patch 12/12] adds a check for debugfs help function to decide which
commands are supportable
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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PF supports all debugfs command, but VF only supports part of
debugfs command. So VF should not show unsupported help information.
This patch adds a check for PF and PF to show the supportable help
information.
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch updates VF's TQP statistic info in the service task,
and adds a limitation to prevent update too frequently.
Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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MAC tnl interruptions are different from other type of RAS and MSI-X
errors, because some bits, such as OVF/LR/RF will occur during link up
and down.
The drivers should clear status of all MAC tnl interruption bits but
shouldn't print any message that would mislead the users.
In case that link down and re-up in a short time because of some reasons,
we record when they occurred, and users can query them by debugfs.
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch allow users to dump content of NCL_CONFIG by using debugfs
command.
Command format:
echo dump ncl_config <offset> <length> > cmd
It will print as follows:
hns3 0000:7d:00.0: offset | data
hns3 0000:7d:00.0: 0x0000 | 0x00000020
hns3 0000:7d:00.0: 0x0004 | 0x00000400
hns3 0000:7d:00.0: 0x0008 | 0x08020401
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for network interface message level
settings. The message level can be changed by module parameter
or ethtool.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently we just print few information when tx timeout happens.
In order to find out the cause of timeout, this patch prints more
information about the packet statistics, tqp registers and
napi state.
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In function hns3_get_tx_timeo_queue_info(), it should use
netdev->num_tx_queues, instead of netdve->real_num_tx_queues
as the loop limitation.
Fixes: 424eb834a9be ("net: hns3: Unified HNS3 {VF|PF} Ethernet Driver for hip08 SoC")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In current codes, tx_timeout_cnt is used before increased,
then we can see the tx_timeout_count is still 0 from the
print when tx timeout happens, e.g.
"hns3 0000:7d:00.3 eth3: tx_timeout count: 0, queue id: 0, SW_NTU:
0xa6, SW_NTC: 0xa4, HW_HEAD: 0xa4, HW_TAIL: 0xa6, INT: 0x1"
The tx_timeout_cnt should be updated before used.
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When wait for response timeout or response code not match, there
should be more information for debugging.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When received vector0 msix and other event interrupt, it should
print the value of the register for debugging.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds some statistics for VF reset.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds statistics for PF's reset information,
also, provides a debugfs command to dump these statistics.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo:
"A patch to fix a RCU imbalance error in the devices cgroup
configuration error path"
* 'for-5.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
device_cgroup: fix RCU imbalance in error case
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The BPF_PROG_LOAD condition for kernel version <= 5.1 is
log->len_total > UINT_MAX >> 8 /* (16 * 1024 * 1024) - 1 */
Signed-off-by: McCabe, Robert J <robert.mccabe@rockwellcollins.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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tcp sendmsg() and sendpage() normally advance skb->data_len
and skb->truesize by the payload added to an skb.
But sendmsg(fd, ..., MSG_ZEROCOPY) has to account for whole pages,
even if a single byte of payload is used in the page.
This means that we can not assume skb->truesize can be adjusted
by skb->data_len. We must instead overwrite its value.
Otherwise skb->truesize is too big and can hit socket sndbuf limit,
especially if the skb is recycled multiple times :/
Fixes: 472c2e07eef0 ("tcp: add one skb cache for tx")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
Pull percpu fixlet from Dennis Zhou:
"This stops printing the base address of percpu memory on
initialization"
* 'for-5.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
percpu: stop printing kernel addresses
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
Mellanox, mlx5 fixes 2019-04-19
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
For -stable v4.7:
('net/mlx5e: ethtool, Remove unsupported SFP EEPROM high pages query')
For -stable v4.19:
('net/mlx5e: Fix the max MTU check in case of XDP')
For -stable v5.0:
('net/mlx5e: Fix use-after-free after xdp_return_frame')
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit f6b19b354d50 ("net: devlink: select NET_DEVLINK
from drivers") adds implicit select of NET_DEVLINK for
mlxsw, the code does not have to deal with the case
when CONFIG_NET_DEVLINK is not enabled. So remove the ifcase
and adjust Makefile.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When using TIPC_SOCK_RECVQ_DEPTH for getsockopt(), it returns the
number of buffers in receive socket buffer which is not so helpful
for user space applications.
This commit introduces the new option TIPC_SOCK_RECVQ_USED which
returns the current allocated bytes of the receive socket buffer.
This helps user space applications dimension its buffer usage to
avoid buffer overload issue.
Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If we add a bond device which is already the master of the team interface,
we will hold the team->lock in team_add_slave() first and then request the
lock in team_set_mac_address() again. The functions are called like:
- team_add_slave()
- team_port_add()
- team_port_enter()
- team_modeop_port_enter()
- __set_port_dev_addr()
- dev_set_mac_address()
- bond_set_mac_address()
- dev_set_mac_address()
- team_set_mac_address
Although team_upper_dev_link() would check the upper devices but it is
called too late. Fix it by adding a checking before processing the slave.
v2: Do not split the string in netdev_err()
Fixes: 3d249d4ca7d0 ("net: introduce ethernet teaming device")
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The run_netsocktests will be marked as passed regardless the actual test
result from the ./socket:
selftests: net: run_netsocktests
========================================
--------------------
running socket test
--------------------
[FAIL]
ok 1..6 selftests: net: run_netsocktests [PASS]
This is because the test script itself has been successfully executed.
Fix this by exit 1 when the test failed.
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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phylink will call the mac_config() callback once per second when
polling a PHY or a fixed link. The MAC driver is not supposed to
reconfigure the MAC if nothing has changed.
Make the mv88e6xxx driver look at the current configuration of the
port, and return early if nothing has changed.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The 'timeval' and 'timespec' data structures used for socket timestamps
are going to be redefined in user space based on 64-bit time_t in future
versions of the C library to deal with the y2038 overflow problem,
which breaks the ABI definition.
Unlike many modern ioctl commands, SIOCGSTAMP and SIOCGSTAMPNS do not
use the _IOR() macro to encode the size of the transferred data, so it
remains ambiguous whether the application uses the old or new layout.
The best workaround I could find is rather ugly: we redefine the command
code based on the size of the respective data structure with a ternary
operator. This lets it get evaluated as late as possible, hopefully after
that structure is visible to the caller. We cannot use an #ifdef here,
because inux/sockios.h might have been included before any libc header
that could determine the size of time_t.
The ioctl implementation now interprets the new command codes as always
referring to the 64-bit structure on all architectures, while the old
architecture specific command code still refers to the old architecture
specific layout. The new command number is only used when they are
actually different.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ia64, parisc and sparc just use a copy of the generic version
of asm/sockios.h, and x86 is a redirect to the same file, so we
can just let the header file be generated.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The SIOCGSTAMP/SIOCGSTAMPNS ioctl commands are implemented by many
socket protocol handlers, and all of those end up calling the same
sock_get_timestamp()/sock_get_timestampns() helper functions, which
results in a lot of duplicate code.
With the introduction of 64-bit time_t on 32-bit architectures, this
gets worse, as we then need four different ioctl commands in each
socket protocol implementation.
To simplify that, let's add a new .gettstamp() operation in
struct proto_ops, and move ioctl implementation into the common
sock_ioctl()/compat_sock_ioctl_trans() functions that these all go
through.
We can reuse the sock_get_timestamp() implementation, but generalize
it so it can deal with both native and compat mode, as well as
timeval and timespec structures.
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/lkml/CAK8P3a038aDQQotzua_QtKGhq8O9n+rdiz2=WDCp82ys8eUT+A@mail.gmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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'net-support-binding-vlan-dev-link-state-to-vlan-member-bridge-ports'
Mike Manning says:
====================
net: support binding vlan dev link state to vlan member bridge ports
For vlan filtering on bridges, the bridge may also have vlan devices
as upper devices. For switches, these are used to provide L3 packet
processing for ports that are members of a given vlan.
While it is correct that the admin state for these vlan devices is
either set directly for the device or inherited from the lower device,
the link state is also transferred from the lower device. So this is
always up if the bridge is in admin up state and there is at least one
bridge port that is up, regardless of the vlan that the port is in.
The link state of the vlan device may need to track only the state of
the subset of ports that are also members of the corresponding vlan,
rather than that of all ports.
This series provides an optional vlan flag so that the link state of
the vlan device is only up if there is at least one bridge port that is
up AND is a member of the corresponding vlan.
v2:
- Address review comments from Nikolay Aleksandrov
in patches 3 & 4 and add patch 5 to address bridge link down due to STP
v3:
- Address review comment from Nikolay Aleksandrov
in patch 4 so as to remove unnecessary inline #ifdef
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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If vlan bridge binding is enabled, then the link state of a vlan device
that is an upper device of the bridge tracks the state of bridge ports
that are members of that vlan. But this can only be done when the link
state of the bridge is up. If it is down, then the link state of the
vlan devices must also be down. This is to maintain existing behavior
for when STP is enabled and there are no live ports, in which case the
link state for the bridge and any vlan devices is down.
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If vlan bridge binding is enabled, then the link state of a vlan device
that is an upper device of the bridge should track the state of bridge
ports that are members of that vlan. So if a bridge port becomes or
stops being a member of a vlan, then update the link state of the
vlan device if necessary.
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the case of vlan filtering on bridges, the bridge may also have the
corresponding vlan devices as upper devices. A vlan bridge binding mode
is added to allow the link state of the vlan device to track only the
state of the subset of bridge ports that are also members of the vlan,
rather than that of all bridge ports. This mode is set with a vlan flag
rather than a bridge sysfs so that the 8021q module is aware that it
should not set the link state for the vlan device.
If bridge vlan is configured, the bridge device event handling results
in the link state for an upper device being set, if it is a vlan device
with the vlan bridge binding mode enabled. This also sets a
vlan_bridge_binding flag so that subsequent UP/DOWN/CHANGE events for
the ports in that bridge result in a link state update of the vlan
device if required.
The link state of the vlan device is up if there is at least one bridge
port that is a vlan member that is admin & oper up, otherwise its oper
state is IF_OPER_LOWERLAYERDOWN.
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In vlan bridge binding mode, the link state is no longer transferred
from the lower device. Instead it is set by the bridge module according
to the state of bridge ports that are members of the vlan.
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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