| Commit message (Collapse) | Author | Age | Files | Lines |
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Currently the system will be woken up via WOL(Wake On LAN) even if the
device wakeup ability has been disabled via sysfs:
cat /sys/devices/pci0000:00/0000:00:1f.6/power/wakeup
disabled
The system should not be woken up if the user has explicitly
disabled the wake up ability for this device.
This patch clears the WOL ability of this network device if the
user has disabled the wake up ability in sysfs.
Fixes: bc7f75fa9788 ("[E1000E]: New pci-express e1000 driver")
Reported-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Without a MODULE_DEVICE_TABLE the attributes are missing that create
an alias for auto-loading the module in userspace via hotplug.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The port's headroom buffers are used to store packets while they
traverse the device's pipeline and also to store packets that are egress
mirrored.
On Spectrum-3, ports with eight lanes use two headroom buffers between
which the configured headroom size is split.
In order to prevent packet loss, multiply the calculated headroom size
by two for 8x ports.
Fixes: da382875c616 ("mlxsw: spectrum: Extend to support Spectrum-3 ASIC")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Code to initialize the conf structure while gathering the configuration
of the device was missing.
Fixes: 571912c69f0e ("net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc.")
Signed-off-by: Martin <martin.varghese@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The remove function does not destroy all
BM Pools when per cpu pool is active.
When reloading the mvpp2 as a module the BM Pools
are still active in hardware and due to the bug
have twice the size now old + new.
This eventually leads to a kernel crash.
v2:
* add Fixes tag
Fixes: 7d04b0b13b11 ("mvpp2: percpu buffers")
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Back in 2013, we made a change that broke fast retransmit
for non SACK flows.
Indeed, for these flows, a sender needs to receive three duplicate
ACK before starting fast retransmit. Sending ACK with different
receive window do not count.
Even if enabling SACK is strongly recommended these days,
there still are some cases where it has to be disabled.
Not increasing the window seems better than having to
rely on RTO.
After the fix, following packetdrill test gives :
// Initialize connection
0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+0 bind(3, ..., ...) = 0
+0 listen(3, 1) = 0
+0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
+0 < . 1:1(0) ack 1 win 514
+0 accept(3, ..., ...) = 4
+0 < . 1:1001(1000) ack 1 win 514
// Quick ack
+0 > . 1:1(0) ack 1001 win 264
+0 < . 2001:3001(1000) ack 1 win 514
// DUPACK : Normally we should not change the window
+0 > . 1:1(0) ack 1001 win 264
+0 < . 3001:4001(1000) ack 1 win 514
// DUPACK : Normally we should not change the window
+0 > . 1:1(0) ack 1001 win 264
+0 < . 4001:5001(1000) ack 1 win 514
// DUPACK : Normally we should not change the window
+0 > . 1:1(0) ack 1001 win 264
+0 < . 1001:2001(1000) ack 1 win 514
// Hole is repaired.
+0 > . 1:1(0) ack 5001 win 272
Fixes: 4e4f1fc22681 ("tcp: properly increase rcv_ssthresh for ofo packets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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socket malloced by sock_create_kern() should be release before return
in the error handling, otherwise it cause memory leak.
unreferenced object 0xffff88810910c000 (size 1216):
comm "00000003_test_m", pid 12238, jiffies 4295050289 (age 54.237s)
hex dump (first 32 bytes):
01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 2f 30 0a 81 88 ff ff ........./0.....
backtrace:
[<00000000e877f89f>] sock_alloc_inode+0x18/0x1c0
[<0000000093d1dd51>] alloc_inode+0x63/0x1d0
[<000000005673fec6>] new_inode_pseudo+0x14/0xe0
[<00000000b5db6be8>] sock_alloc+0x3c/0x260
[<00000000e7e3cbb2>] __sock_create+0x89/0x620
[<0000000023e48593>] mptcp_subflow_create_socket+0xc0/0x5e0
[<00000000419795e4>] __mptcp_socket_create+0x1ad/0x3f0
[<00000000b2f942e8>] mptcp_stream_connect+0x281/0x4f0
[<00000000c80cd5cc>] __sys_connect_file+0x14d/0x190
[<00000000dc761f11>] __sys_connect+0x128/0x160
[<000000008b14e764>] __x64_sys_connect+0x6f/0xb0
[<000000007b4f93bd>] do_syscall_64+0xa1/0x530
[<00000000d3e770b6>] entry_SYSCALL_64_after_hwframe+0x49/0xb3
Fixes: 2303f994b3e1 ("mptcp: Associate MPTCP context with TCP socket")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Roi Dayan says:
====================
remove dependency between mlx5, act_ct, nf_flow_table
Some exported functions from act_ct and nf_flow_table being used in mlx5_core.
This leads that mlx5 module always require act_ct and nf_flow_table modules.
Those small exported functions can be moved to the header files to
avoid this module dependency.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, nf_flow_table_offload_add/del_cb are exported by nf_flow_table
module, therefore modules using them will have hard-dependency
on nf_flow_table and will require loading it all the time.
This can lead to an unnecessary overhead on systems that do not
use this API.
To relax the hard-dependency between the modules, we unexport these
functions and make them static inline.
Fixes: 978703f42549 ("netfilter: flowtable: Add API for registering to flow table events")
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, tcf_ct_flow_table_restore_skb is exported by act_ct
module, therefore modules using it will have hard-dependency
on act_ct and will require loading it all the time.
This can lead to an unnecessary overhead on systems that do not
use hardware connection tracking action (ct_metadata action) in
the first place.
To relax the hard-dependency between the modules, we unexport this
function and make it a static inline one.
Fixes: 30b0cf90c6dd ("net/sched: act_ct: Support restoring conntrack info on skbs")
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It isn't actually described clearly at all in UM10944.pdf, but on TX of
a management frame (such as PTP), this needs to happen:
- The destination MAC address (i.e. 01-80-c2-00-00-0e), along with the
desired destination port, need to be installed in one of the 4
management slots of the switch, over SPI.
- The host can poll over SPI for that management slot's ENFPORT field.
That gets unset when the switch has matched the slot to the frame.
And therein lies the problem. ENFPORT does not mean that the packet has
been transmitted. Just that it has been received over the CPU port, and
that the mgmt slot is yet again available.
This is relevant because of what we are doing in sja1105_ptp_txtstamp_skb,
which is called right after sja1105_mgmt_xmit. We are in a hard
real-time deadline, since the hardware only gives us 24 bits of TX
timestamp, so we need to read the full PTP clock to reconstruct it.
Because we're in a hurry (in an attempt to make sure that we have a full
64-bit PTP time which is as close as possible to the actual transmission
time of the frame, to avoid 24-bit wraparounds), first we read the PTP
clock, then we poll for the TX timestamp to become available.
But of course, we don't know for sure that the frame has been
transmitted when we read the full PTP clock. We had assumed that ENFPORT
means it has, but the assumption is incorrect. And while in most
real-life scenarios this has never been caught due to software delays,
nowhere is this fact more obvious than with a tc-taprio offload, where
PTP traffic gets a small timeslot very rarely (example: 1 packet per 10
ms). In that case, we will be reading the PTP clock for timestamp
reconstruction too early (before the packet has been transmitted), and
this renders the reconstruction procedure incorrect (see the assumptions
described in the comments found on function sja1105_tstamp_reconstruct).
So the PTP TX timestamps will be off by 1<<24 clock ticks, or 135 ms
(1 tick is 8 ns).
So fix this case of premature optimization by simply reordering the
sja1105_ptpegr_ts_poll and the sja1105_ptpclkval_read function calls. It
turns out that in practice, the 135 ms hard deadline for PTP timestamp
wraparound is not so hard, since even the most bandwidth-intensive PTP
profiles, such as 802.1AS-2011, have a sync frame interval of 125 ms.
So if we couldn't deliver a timestamp in 135 ms (which we can), we're
toast and have much bigger problems anyway.
Fixes: 47ed985e97f5 ("net: dsa: sja1105: Add logic for TX timestamping")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The ethtool rx and tx queue statistics are reporting wrong values.
Fix reading out the correct ones.
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I no longer work for Cogent Embedded (but my old email still works :-)),
and still would like to continue looking after the Renesas Ethernet drivers
and bindings. Let's switch to my private email.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In rocker_dma_rings_init, the goto blocks in case of errors
caused by the functions rocker_dma_cmd_ring_waits_alloc() and
rocker_dma_ring_create() are incorrect. The patch fixes the
order consistent with cleanup in rocker_dma_rings_fini().
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case of failure of check_expect_hints_stats(), the resources
allocated by objagg_hints_get should be freed. The patch fixes
this issue.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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During development we tried to make the interrupt handling as fine-grained
as possible with TX and RX interrupts being disabled/enabled independently
and the counter registers reset from workqueue context.
Unfortunately after thorough testing of current mainline, we noticed the
driver has become unstable under heavy load. While this is hard to
reproduce, it's quite consistent in the driver's current form.
This patch proposes to go back to the previous approach of doing all
processing in napi context with all interrupts masked in order to make the
driver usable in mainline linux. This doesn't impact the performance on
pumpkin boards at all and it's in line with what many ethernet drivers do
in mainline linux anyway.
At the same time we're adding a FIXME comment about the need to improve
the interrupt handling.
Fixes: 8c7bd5a454ff ("net: ethernet: mtk-star-emac: new driver")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit a84d01647989 ("mld: fix memory leak in mld_del_delrec()") fixed
the memory leak of MLD, but missing the ipv6_mc_destroy_dev() path, in
which mca_sources are leaked after ma_put().
Using ip6_mc_clear_src() to take care of the missing free.
BUG: memory leak
unreferenced object 0xffff8881113d3180 (size 64):
comm "syz-executor071", pid 389, jiffies 4294887985 (age 17.943s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 ff 02 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002cbc483c>] kmalloc include/linux/slab.h:555 [inline]
[<000000002cbc483c>] kzalloc include/linux/slab.h:669 [inline]
[<000000002cbc483c>] ip6_mc_add1_src net/ipv6/mcast.c:2237 [inline]
[<000000002cbc483c>] ip6_mc_add_src+0x7f5/0xbb0 net/ipv6/mcast.c:2357
[<0000000058b8b1ff>] ip6_mc_source+0xe0c/0x1530 net/ipv6/mcast.c:449
[<000000000bfc4fb5>] do_ipv6_setsockopt.isra.12+0x1b2c/0x3b30 net/ipv6/ipv6_sockglue.c:754
[<00000000e4e7a722>] ipv6_setsockopt+0xda/0x150 net/ipv6/ipv6_sockglue.c:950
[<0000000029260d9a>] rawv6_setsockopt+0x45/0x100 net/ipv6/raw.c:1081
[<000000005c1b46f9>] __sys_setsockopt+0x131/0x210 net/socket.c:2132
[<000000008491f7db>] __do_sys_setsockopt net/socket.c:2148 [inline]
[<000000008491f7db>] __se_sys_setsockopt net/socket.c:2145 [inline]
[<000000008491f7db>] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2145
[<00000000c7bc11c5>] do_syscall_64+0xa1/0x530 arch/x86/entry/common.c:295
[<000000005fb7a3f3>] entry_SYSCALL_64_after_hwframe+0x49/0xb3
Fixes: 1666d49e1d41 ("mld: do not remove mld souce list info when set link down")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Acked-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael Chan says:
====================
bnxt_en: Bug fixes.
Four fixes related to the bnxt_en driver's resume path, AER reset, and
the timer function.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This will avoid many uneccessary error logs when driver or firmware is
in reset.
Fixes: 230d1f0de754 ("bnxt_en: Handle firmware reset.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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AER reset should follow the same steps as suspend/resume. We need to
free context memory during AER reset and allocate new context memory
during recovery by calling bnxt_hwrm_func_qcaps(). We also need
to call bnxt_reenable_sriov() to restore the VFs.
Fixes: bae361c54fb6 ("bnxt_en: Improve AER slot reset.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If VFs are enabled, we need to re-configure them during resume because
firmware has been reset while resuming. Otherwise, the VFs won't
work after resume.
Fixes: c16d4ee0e397 ("bnxt_en: Refactor logic to re-enable SRIOV after firmware reset detected.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The separate steps we do in bnxt_resume() can be done more simply by
calling bnxt_hwrm_func_qcaps(). This change will add an extra
__bnxt_hwrm_func_qcaps() call which is needed anyway on older
firmware.
Fixes: f9b69d7f6279 ("bnxt_en: Fix suspend/resume path on 57500 chips")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Fix bogus EEXIST on element insertions to the rbtree with timeouts,
from Stefano Brivio.
2) Preempt BUG splat in the pipapo element insertion path, also from
Stefano.
3) Release filter from the ctnetlink error path.
4) Release flowtable hooks from the deletion path.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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After looking up for the flowtable hooks that need to be removed,
release the hook objects in the deletion list. The error path needs to
released these hook objects too.
Fixes: abadb2f865d7 ("netfilter: nf_tables: delete devices from flowtable")
Reported-by: syzbot+eb9d5924c51d6d59e094@syzkaller.appspotmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Release the filter object in case of error.
Fixes: cb8aa9a3affb ("netfilter: ctnetlink: add kernel side filtering for dump")
Reported-by: syzbot+38b8b548a851a01793c5@syzkaller.appspotmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The lkp kernel test robot reports, with CONFIG_DEBUG_PREEMPT enabled:
[ 165.316525] BUG: using smp_processor_id() in preemptible [00000000] code: nft/6247
[ 165.319547] caller is nft_pipapo_insert+0x464/0x610 [nf_tables]
[ 165.321846] CPU: 1 PID: 6247 Comm: nft Not tainted 5.6.0-rc5-01595-ge32a4dc6512ce3 #1
[ 165.332128] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 165.334892] Call Trace:
[ 165.336435] dump_stack+0x8f/0xcb
[ 165.338128] debug_smp_processor_id+0xb2/0xc0
[ 165.340117] nft_pipapo_insert+0x464/0x610 [nf_tables]
[ 165.342290] ? nft_trans_alloc_gfp+0x1c/0x60 [nf_tables]
[ 165.344420] ? rcu_read_lock_sched_held+0x52/0x80
[ 165.346460] ? nft_trans_alloc_gfp+0x1c/0x60 [nf_tables]
[ 165.348543] ? __mmu_interval_notifier_insert+0xa0/0xf0
[ 165.350629] nft_add_set_elem+0x5ff/0xa90 [nf_tables]
[ 165.352699] ? __lock_acquire+0x241/0x1400
[ 165.354573] ? __lock_acquire+0x241/0x1400
[ 165.356399] ? reacquire_held_locks+0x12f/0x200
[ 165.358384] ? nf_tables_valid_genid+0x1f/0x40 [nf_tables]
[ 165.360502] ? nla_strcmp+0x10/0x50
[ 165.362199] ? nft_table_lookup+0x4f/0xa0 [nf_tables]
[ 165.364217] ? nla_strcmp+0x10/0x50
[ 165.365891] ? nf_tables_newsetelem+0xd5/0x150 [nf_tables]
[ 165.367997] nf_tables_newsetelem+0xd5/0x150 [nf_tables]
[ 165.370083] nfnetlink_rcv_batch+0x4fd/0x790 [nfnetlink]
[ 165.372205] ? __lock_acquire+0x241/0x1400
[ 165.374058] ? __nla_validate_parse+0x57/0x8a0
[ 165.375989] ? cap_inode_getsecurity+0x230/0x230
[ 165.377954] ? security_capable+0x38/0x50
[ 165.379795] nfnetlink_rcv+0x11d/0x140 [nfnetlink]
[ 165.381779] netlink_unicast+0x1b2/0x280
[ 165.383612] netlink_sendmsg+0x351/0x470
[ 165.385439] sock_sendmsg+0x5b/0x60
[ 165.387133] ____sys_sendmsg+0x200/0x280
[ 165.388871] ? copy_msghdr_from_user+0xd9/0x160
[ 165.390805] ___sys_sendmsg+0x88/0xd0
[ 165.392524] ? __might_fault+0x3e/0x90
[ 165.394273] ? sock_getsockopt+0x3d5/0xbb0
[ 165.396021] ? __handle_mm_fault+0x545/0x6a0
[ 165.397822] ? find_held_lock+0x2d/0x90
[ 165.399593] ? __sys_sendmsg+0x5e/0xa0
[ 165.401338] __sys_sendmsg+0x5e/0xa0
[ 165.402979] do_syscall_64+0x60/0x280
[ 165.404680] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 165.406621] RIP: 0033:0x7ff1fa46e783
[ 165.408299] Code: c7 c0 ff ff ff ff eb bb 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 89 54 24 1c 48
[ 165.414163] RSP: 002b:00007ffedf59ea78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 165.416804] RAX: ffffffffffffffda RBX: 00007ffedf59fc60 RCX: 00007ff1fa46e783
[ 165.419419] RDX: 0000000000000000 RSI: 00007ffedf59fb10 RDI: 0000000000000005
[ 165.421886] RBP: 00007ffedf59fc10 R08: 00007ffedf59ea54 R09: 0000000000000001
[ 165.424445] R10: 00007ff1fa630c6c R11: 0000000000000246 R12: 0000000000020000
[ 165.426954] R13: 0000000000000280 R14: 0000000000000005 R15: 00007ffedf59ea90
Disable preemption before accessing the lookup scratch area in
nft_pipapo_insert().
Reported-by: kernel test robot <lkp@intel.com>
Analysed-by: Florian Westphal <fw@strlen.de>
Cc: <stable@vger.kernel.org> # 5.6.x
Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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While checking the validity of insertion in __nft_rbtree_insert(),
we currently ignore conflicting elements and intervals only if they
are not active within the next generation.
However, if we consider expired elements and intervals as
potentially conflicting and overlapping, we'll return error for
entries that should be added instead. This is particularly visible
with garbage collection intervals that are comparable with the
element timeout itself, as reported by Mike Dillinger.
Other than the simple issue of denying insertion of valid entries,
this might also result in insertion of a single element (opening or
closing) out of a given interval. With single entries (that are
inserted as intervals of size 1), this leads in turn to the creation
of new intervals. For example:
# nft add element t s { 192.0.2.1 }
# nft list ruleset
[...]
elements = { 192.0.2.1-255.255.255.255 }
Always ignore expired elements active in the next generation, while
checking for conflicts.
It might be more convenient to introduce a new macro that covers
both inactive and expired items, as this type of check also appears
quite frequently in other set back-ends. This is however beyond the
scope of this fix and can be deferred to a separate patch.
Other than the overlap detection cases introduced by commit
7c84d41416d8 ("netfilter: nft_set_rbtree: Detect partial overlaps
on insertion"), we also have to cover the original conflict check
dealing with conflicts between two intervals of size 1, which was
introduced before support for timeout was introduced. This won't
return an error to the user as -EEXIST is masked by nft if
NLM_F_EXCL is not given, but would result in a silent failure
adding the entry.
Reported-by: Mike Dillinger <miked@softtalker.com>
Cc: <stable@vger.kernel.org> # 5.6.x
Fixes: 8d8540c4f5e0 ("netfilter: nft_set_rbtree: add timeout support")
Fixes: 7c84d41416d8 ("netfilter: nft_set_rbtree: Detect partial overlaps on insertion")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The ocelot switchdev driver also provides a set of library functions for
the felix DSA driver, which in practice means that most of the patches
will be of interest to both groups of driver maintainers.
So, as also suggested in the discussion here, let's merge the 2 entries
into a single larger one:
https://www.spinics.net/lists/netdev/msg657412.html
Note that the entry has been renamed into "OCELOT SWITCH" since neither
Vitesse nor Microsemi exist any longer as company names, instead they
are now named Microchip (which again might be subject to change in the
future), so use the device family name instead.
Suggested-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a race condition exist during termination. The path is
alx_stop and then alx_remove. An alx_schedule_link_check could be called
before alx_stop by interrupt handler and invoke alx_link_check later.
Alx_stop frees the napis, and alx_remove cancels any pending works.
If any of the work is scheduled before termination and invoked before
alx_remove, a null-ptr-deref occurs because both expect alx->napis[i].
This patch fix the race condition by moving cancel_work_sync functions
before alx_free_napis inside alx_stop. Because interrupt handler can call
alx_schedule_link_check again, alx_free_irq is moved before
cancel_work_sync calls too.
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The VNIC driver's "login" command sequence is the final step
in the driver's initialization process with device firmware,
confirming the available device queue resources to be utilized
by the driver. Under high system load, firmware may not respond
to the request in a timely manner or may abort the request. In
such cases, the driver should reattempt the login command
sequence. In case of a device error, the number of retries
is bounded.
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A recent change added a disable to NAPI into macb_open, this was
intended to only happen on the error path but accidentally applies
to all paths. This causes NAPI to be disabled on the success path, which
leads to the network to no longer functioning.
Fixes: 014406babc1f ("net: cadence: macb: disable NAPI on error")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use kobj_to_dev() instead of container_of()
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use list_first_entry_or_null to simplify the code.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a spelling mistake in a comment. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We have defined MPTCP_PM_ADDR_MAX in pm_netlink.c, so drop this duplicate macro.
Fixes: 1b1c7a0ef7f3 ("mptcp: Add path manager interface")
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The parent field of a struct device may be NULL. The macro
ibdev_to_node() should check for that.
Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull AFS fixes from David Howells:
"I've managed to get xfstests kind of working with afs. Here are a set
of patches that fix most of the bugs found.
There are a number of primary issues:
- Incorrect handling of mtime and non-handling of ctime. It might be
argued, that the latter isn't a bug since the AFS protocol doesn't
support ctime, but I should probably still update it locally.
- Shared-write mmap, truncate and writeback bugs. This includes not
changing i_size under the callback lock, overwriting local i_size
with the reply from the server after a partial writeback, not
limiting the writeback from an mmapped page to EOF.
- Checks for an abort code indicating that the primary vnode in an
operation was deleted by a third-party are done in the wrong place.
- Silly rename bugs. This includes an incomplete conversion to the
new operation handling, duplicate nlink handling, nlink changing
not being done inside the callback lock and insufficient handling
of third-party conflicting directory changes.
And some secondary ones:
- The UAEOVERFLOW abort code should map to EOVERFLOW not EREMOTEIO.
- Remove a couple of unused or incompletely used bits.
- Remove a couple of redundant success checks.
These seem to fix all the data-corruption bugs found by
./check -afs -g quick
along with the obvious silly rename bugs and time bugs.
There are still some test failures, but they seem to fall into two
classes: firstly, the authentication/security model is different to
the standard UNIX model and permission is arbitrated by the server and
cached locally; and secondly, there are a number of features that AFS
does not support (such as mknod). But in these cases, the tests
themselves need to be adapted or skipped.
Using the in-kernel afs client with xfstests also found a bug in the
AuriStor AFS server that has been fixed for a future release"
* tag 'afs-fixes-20200616' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix silly rename
afs: afs_vnode_commit_status() doesn't need to check the RPC error
afs: Fix use of afs_check_for_remote_deletion()
afs: Remove afs_operation::abort_code
afs: Fix yfs_fs_fetch_status() to honour vnode selector
afs: Remove yfs_fs_fetch_file_status() as it's not used
afs: Fix the mapping of the UAEOVERFLOW abort code
afs: Fix truncation issues and mmap writeback size
afs: Concoct ctimes
afs: Fix EOF corruption
afs: afs_write_end() should change i_size under the right lock
afs: Fix non-setting of mtime when writing into mmap
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Fix AFS's silly rename by the following means:
(1) Set the destination directory in afs_do_silly_rename() so as to avoid
misbehaviour and indicate that the directory data version will
increment by 1 so as to avoid warnings about unexpected changes in the
DV. Also indicate that the ctime should be updated to avoid xfstest
grumbling.
(2) Note when the server indicates that a directory changed more than we
expected (AFS_OPERATION_DIR_CONFLICT), indicating a conflict with a
third party change, checking on successful completion of unlink and
rename.
The problem is that the FS.RemoveFile RPC op doesn't report the status
of the unlinked file, though YFS.RemoveFile2 does. This can be
mitigated by the assumption that if the directory DV cranked by
exactly 1, we can be sure we removed one link from the file; further,
ordinarily in AFS, files cannot be hardlinked across directories, so
if we reduce nlink to 0, the file is deleted.
However, if the directory DV jumps by more than 1, we cannot know if a
third party intervened by adding or removing a link on the file we
just removed a link from.
The same also goes for any vnode that is at the destination of the
FS.Rename RPC op.
(3) Make afs_vnode_commit_status() apply the nlink drop inside the cb_lock
section along with the other attribute updates if ->op_unlinked is set
on the descriptor for the appropriate vnode.
(4) Issue a follow up status fetch to the unlinked file in the event of a
third party conflict that makes it impossible for us to know if we
actually deleted the file or not.
(5) Provide a flag, AFS_VNODE_SILLY_DELETED, to make afs_getattr() lie to
the user about the nlink of a silly deleted file so that it appears as
0, not 1.
Found with the generic/035 and generic/084 xfstests.
Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
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afs_vnode_commit_status() is only ever called if op->error is 0, so remove
the op->error checks from the function.
Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: David Howells <dhowells@redhat.com>
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afs_check_for_remote_deletion() checks to see if error ENOENT is returned
by the server in response to an operation and, if so, marks the primary
vnode as having been deleted as the FID is no longer valid.
However, it's being called from the operation success functions, where no
abort has happened - and if an inline abort is recorded, it's handled by
afs_vnode_commit_status().
Fix this by actually calling the operation aborted method if provided and
having that point to afs_check_for_remote_deletion().
Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: David Howells <dhowells@redhat.com>
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Remove afs_operation::abort_code as it's read but never set. Use
ac.abort_code instead.
Signed-off-by: David Howells <dhowells@redhat.com>
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Fix yfs_fs_fetch_status() to honour the vnode selector in
op->fetch_status.which as does afs_fs_fetch_status() that allows
afs_do_lookup() to use this as an alternative to the InlineBulkStatus RPC
call if not implemented by the server.
This doesn't matter in the current code as YFS servers always implement
InlineBulkStatus, but a subsequent will call it on YFS servers too in some
circumstances.
Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: David Howells <dhowells@redhat.com>
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Remove yfs_fs_fetch_file_status() as it's no longer used.
Signed-off-by: David Howells <dhowells@redhat.com>
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Abort code UAEOVERFLOW is returned when we try and set a time that's out of
range, but it's currently mapped to EREMOTEIO by the default case.
Fix UAEOVERFLOW to map instead to EOVERFLOW.
Found with the generic/258 xfstest. Note that the test is wrong as it
assumes that the filesystem will support a pre-UNIX-epoch date.
Fixes: 1eda8bab70ca ("afs: Add support for the UAE error table")
Signed-off-by: David Howells <dhowells@redhat.com>
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Fix the following issues:
(1) Fix writeback to reduce the size of a store operation to i_size,
effectively discarding the extra data.
The problem comes when afs_page_mkwrite() records that a page is about
to be modified by mmap(). It doesn't know what bits of the page are
going to be modified, so it records the whole page as being dirty
(this is stored in page->private as start and end offsets).
Without this, the marshalling for the store to the server extends the
size of the file to the end of the page (in afs_fs_store_data() and
yfs_fs_store_data()).
(2) Fix setattr to actually truncate the pagecache, thereby clearing
the discarded part of a file.
(3) Fix setattr to check that the new size is okay and to disable
ATTR_SIZE if i_size wouldn't change.
(4) Force i_size to be updated as the result of a truncate.
(5) Don't truncate if ATTR_SIZE is not set.
(6) Call pagecache_isize_extended() if the file was enlarged.
Note that truncate_set_size() isn't used because the setting of i_size is
done inside afs_vnode_commit_status() under the vnode->cb_lock.
Found with the generic/029 and generic/393 xfstests.
Fixes: 31143d5d515e ("AFS: implement basic file write support")
Fixes: 4343d00872e1 ("afs: Get rid of the afs_writeback record")
Signed-off-by: David Howells <dhowells@redhat.com>
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The in-kernel afs filesystem ignores ctime because the AFS fileserver
protocol doesn't support ctimes. This, however, causes various xfstests to
fail.
Work around this by:
(1) Setting ctime to attr->ia_ctime in afs_setattr().
(2) Not ignoring ATTR_MTIME_SET, ATTR_TIMES_SET and ATTR_TOUCH settings.
(3) Setting the ctime from the server mtime when on the target file when
creating a hard link to it.
(4) Setting the ctime on directories from their revised mtimes when
renaming/moving a file.
Found by the generic/221 and generic/309 xfstests.
Signed-off-by: David Howells <dhowells@redhat.com>
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When doing a partial writeback, afs_write_back_from_locked_page() may
generate an FS.StoreData RPC request that writes out part of a file when a
file has been constructed from pieces by doing seek, write, seek, write,
... as is done by ld.
The FS.StoreData RPC is given the current i_size as the file length, but
the server basically ignores it unless the data length is 0 (in which case
it's just a truncate operation). The revised file length returned in the
result of the RPC may then not reflect what we suggested - and this leads
to i_size getting moved backwards - which causes issues later.
Fix the client to take account of this by ignoring the returned file size
unless the data version number jumped unexpectedly - in which case we're
going to have to clear the pagecache and reload anyway.
This can be observed when doing a kernel build on an AFS mount. The
following pair of commands produce the issue:
ld -m elf_x86_64 -z max-page-size=0x200000 --emit-relocs \
-T arch/x86/realmode/rm/realmode.lds \
arch/x86/realmode/rm/header.o \
arch/x86/realmode/rm/trampoline_64.o \
arch/x86/realmode/rm/stack.o \
arch/x86/realmode/rm/reboot.o \
-o arch/x86/realmode/rm/realmode.elf
arch/x86/tools/relocs --realmode \
arch/x86/realmode/rm/realmode.elf \
>arch/x86/realmode/rm/realmode.relocs
This results in the latter giving:
Cannot read ELF section headers 0/18: Success
as the realmode.elf file got corrupted.
The sequence of events can also be driven with:
xfs_io -t -f \
-c "pwrite -S 0x58 0 0x58" \
-c "pwrite -S 0x59 10000 1000" \
-c "close" \
/afs/example.com/scratch/a
Fixes: 31143d5d515e ("AFS: implement basic file write support")
Signed-off-by: David Howells <dhowells@redhat.com>
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Fix afs_write_end() to change i_size under vnode->cb_lock rather than
->wb_lock so that it doesn't race with afs_vnode_commit_status() and
afs_getattr().
The ->wb_lock is only meant to guard access to ->wb_keys which isn't
accessed by that piece of code.
Fixes: 4343d00872e1 ("afs: Get rid of the afs_writeback record")
Signed-off-by: David Howells <dhowells@redhat.com>
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The mtime on an inode needs to be updated when a write is made into an
mmap'ed section. There are three ways in which this could be done: update
it when page_mkwrite is called, update it when a page is changed from dirty
to writeback or leave it to the server and fix the mtime up from the reply
to the StoreData RPC.
Found with the generic/215 xfstest.
Fixes: 1cf7a1518aef ("afs: Implement shared-writeable mmap")
Signed-off-by: David Howells <dhowells@redhat.com>
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Remove SH-5 documentation index entries following the removal
of SH-5 source code.
Error: Cannot open file ../arch/sh/mm/tlb-sh5.c
Error: Cannot open file ../arch/sh/mm/tlb-sh5.c
Error: Cannot open file ../arch/sh/include/asm/tlb_64.h
Error: Cannot open file ../arch/sh/include/asm/tlb_64.h
Fixes: 3b69e8b45711 ("Merge tag 'sh-for-5.8' of git://git.libc.org/linux-sh")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Rich Felker <dalias@libc.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: ysato@users.sourceforge.jp
Cc: linux-sh@vger.kernel.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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