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The expect_rx_by call timeout is supposed to be set when a call is started
to indicate that we need to receive a packet by that point. This is
currently put back every time we receive a packet, but it isn't started
when we first send a packet. Without this, the call may wait forever if
the server doesn't deign to reply.
Fix this by setting the timeout upon a successful UDP sendmsg call for the
first DATA packet. The timeout is initiated only for initial transmission
and not for subsequent retries as we don't want the retry mechanism to
extend the timeout indefinitely.
Fixes: a158bdd3247b ("rxrpc: Fix call timeouts")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
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Trivial fix to spelling mistake in DP_VERBOSE message text
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In Commit 1f45f78f8e51 ("sctp: allow GSO frags to access the chunk too"),
it held the chunk in sctp_ulpevent_make_rcvmsg to access it safely later
in recvmsg. However, it also added sctp_chunk_put in fail_mark err path,
which is only triggered before holding the chunk.
syzbot reported a use-after-free crash happened on this err path, where
it shouldn't call sctp_chunk_put.
This patch simply removes this call.
Fixes: 1f45f78f8e51 ("sctp: allow GSO frags to access the chunk too")
Reported-by: syzbot+141d898c5f24489db4aa@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If an error occurs, 'mlx4_en_destroy_netdev()' is called.
It then calls 'mlx4_en_free_resources()' which does the needed resources
cleanup.
So, doing some explicit kfree in the error handling path would lead to
some double kfree.
Simplify code to avoid such a case.
Fixes: 67f8b1dcb9ee ("net/mlx4_en: Refactor the XDP forwarding rings scheme")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The hyper-v transparent bonding should have used master_dev_link.
The netvsc device should look like a master bond device not
like the upper side of a tunnel.
This makes the semantics the same so that userspace applications
looking at network devices see the correct master relationshipship.
Fixes: 0c195567a8f6 ("netvsc: transparent VF management")
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sysbot/KMSAN reported an uninit-value in recvmsg() that
I tracked down to tipc_sk_set_orig_addr(), missing
srcaddr->member.scope initialization.
This patches moves srcaddr->sock.scope init to follow
fields order and ease future verifications.
BUG: KMSAN: uninit-value in copy_to_user include/linux/uaccess.h:184 [inline]
BUG: KMSAN: uninit-value in move_addr_to_user+0x32e/0x530 net/socket.c:226
CPU: 0 PID: 4549 Comm: syz-executor287 Not tainted 4.17.0-rc3+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x185/0x1d0 lib/dump_stack.c:113
kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
kmsan_internal_check_memory+0x135/0x1e0 mm/kmsan/kmsan.c:1157
kmsan_copy_to_user+0x69/0x160 mm/kmsan/kmsan.c:1199
copy_to_user include/linux/uaccess.h:184 [inline]
move_addr_to_user+0x32e/0x530 net/socket.c:226
___sys_recvmsg+0x4e2/0x810 net/socket.c:2285
__sys_recvmsg net/socket.c:2328 [inline]
__do_sys_recvmsg net/socket.c:2338 [inline]
__se_sys_recvmsg net/socket.c:2335 [inline]
__x64_sys_recvmsg+0x325/0x460 net/socket.c:2335
do_syscall_64+0x154/0x220 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4455e9
RSP: 002b:00007fe3bd36ddb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 00000000004455e9
RDX: 0000000000002002 RSI: 0000000020000400 RDI: 0000000000000003
RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff98ce4b6f R14: 00007fe3bd36e9c0 R15: 0000000000000003
Local variable description: ----addr@___sys_recvmsg
Variable was created at:
___sys_recvmsg+0xd5/0x810 net/socket.c:2246
__sys_recvmsg net/socket.c:2328 [inline]
__do_sys_recvmsg net/socket.c:2338 [inline]
__se_sys_recvmsg net/socket.c:2335 [inline]
__x64_sys_recvmsg+0x325/0x460 net/socket.c:2335
Byte 19 of 32 is uninitialized
Fixes: 31c82a2d9d51 ("tipc: add second source address to recvmsg()/recvfrom()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- correct a typo in the value of 'matchPattern' of test 282d, potentially
causing false negative
- allow errors when 'teardown' executes '$TC action flush action bpf' in
test 282d, to fix false positive when it is run with act_bpf unloaded
- correct the value of 'matchPattern' in test e939, causing false positive
in case the BPF JIT is enabled
Fixes: 440ea4ae1828 ("tc-testing: add selftests for 'bpf' action")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add check of coalescing parameters received through ethtool are within
range of values supported by the HW.
Driver gets the coalescing rx/tx-usecs and rx/tx-frames as set by the
users through ethtool. The ethtool support up to 32 bit value for each.
However, mlx4 modify cq limits the coalescing time parameter and
coalescing frames parameters to 16 bits.
Return out of range error if user tries to set these parameters to
higher values.
Change type of sample-interval and adaptive_rx_coal parameters in mlx4
driver to u32 as the ethtool holds them as u32 and these parameters are
not limited due to mlx4 HW.
Fixes: c27a02cd94d6 ('mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC')
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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copy mbox size to adapter instances of PF0-3 to avoid
mbox log overflow. This fixes the possible protection
fault.
Fixes: baf5086840ab ("cxgb4: restructure VF mgmt code")
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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firmware expects HMA memory to be zeroed, use __GFP_ZERO
for HMA memory allocation.
Fixes: 8b4e6b3ca2ed ("cxgb4: Add HMA support")
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Damir reported a breakage of SO_BINDTODEVICE for UDP sockets.
In absence of VRF devices, after commit fb74c27735f0 ("net:
ipv4: add second dif to udp socket lookups") the dif mismatch
isn't fatal anymore for UDP socket lookup with non null
sk_bound_dev_if, breaking SO_BINDTODEVICE semantics.
This changeset addresses the issue making the dif match mandatory
again in the above scenario.
Reported-by: Damir Mansurov <dnman@oktetlabs.ru>
Fixes: fb74c27735f0 ("net: ipv4: add second dif to udp socket lookups")
Fixes: 1801b570dd2a ("net: ipv6: add second dif to udp socket lookups")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After route cache is flushed via ipv4_sysctl_rtcache_flush(), we forget
to reset fnhe_mtu_locked in rt_bind_exception(). When pmtu is updated
in __ip_rt_update_pmtu(), it will return directly since the pmtu is
still locked. e.g.
+ ip netns exec client ping 10.10.1.1 -c 1 -s 1400 -M do
PING 10.10.1.1 (10.10.1.1) 1400(1428) bytes of data.
>From 10.10.0.254 icmp_seq=1 Frag needed and DF set (mtu = 0)
Signed-off-by: David S. Miller <davem@davemloft.net>
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On older windows hosts the net_device instance is returned to
the caller of rndis_filter_device_add() without having the presence
bit set first. This would cause any subsequent calls to network device
operations (e.g. MTU change, channel change) to fail after the device
is detached once, returning -ENODEV.
Instead of returning the device instabce, we take the exit path where
we call netif_device_attach()
Fixes: 7b2ee50c0cd5 ("hv_netvsc: common detach logic")
Signed-off-by: Mohammed Gamal <mgamal@redhat.com>
Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit 29a5dcae2790 ("nfp: flower: offload phys port MTU change") we
take encapsulation headroom into account when calculating the max allowed
MTU. This is unnecessary as the max MTU advertised by firmware should have
already accounted for encap headroom.
Subtracting headroom twice brings the max MTU below what's necessary for
some deployments.
Fixes: 29a5dcae2790 ("nfp: flower: offload phys port MTU change")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Trivial fix to spelling mistake in dev_warn message text
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Trivial fix to spelling mistake in error string
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Trivial fix to spelling mistake in res_strings string array
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A previous commit 4609adc27175 ("qede: Fix qedr link update")
added a flow that could allocate rdma event objects from an
interrupt path (link notification). Therefore the kzalloc call
should be done with GFP_ATOMIC.
fixes: 4609adc27175 ("qede: Fix qedr link update")
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If qede driver was loaded on a device configured for iWARP
the l2 mutex wouldn't be allocated, and some l2 related
resources wouldn't be freed.
fixes: c851a9dc4359 ("qed: Introduce iWARP personality")
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When sending packets as fast as possible using "cangen -g 0 -i -x", the
HI-3110 occasionally latches the interrupt pin high on completion of a
packet, but doesn't set the TXCPLT bit in the INTF register. The INTF
register contains 0x00 as if no interrupt has occurred. Even waiting
for a few milliseconds after the interrupt doesn't help.
Work around this apparent erratum by instead checking the TXMTY bit in
the STATF register ("TX FIFO empty"). We know that we've queued up a
packet for transmission if priv->tx_len is nonzero. If the TX FIFO is
empty, transmission of that packet must have completed.
Note that this is congruent with our handling of received packets, which
likewise gleans from the STATF register whether a packet is waiting in
the RX FIFO, instead of looking at the INTF register.
Cc: Mathias Duckeck <m.duckeck@kunbus.de>
Cc: Akshay Bhat <akshay.bhat@timesys.com>
Cc: Casey Fitzpatrick <casey.fitzpatrick@timesys.com>
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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hi3110_get_berr_counter() may run concurrently to the rest of the driver
but neglects to acquire the lock protecting access to the SPI device.
As a result, it and the rest of the driver may clobber each other's tx
and rx buffers.
We became aware of this issue because transmission of packets with
"cangen -g 0 -i -x" frequently hung. It turns out that agetty executes
->do_get_berr_counter every few seconds via the following call stack:
CPU: 2 PID: 1605 Comm: agetty
[<7f3f7500>] (hi3110_get_berr_counter [hi311x])
[<7f130204>] (can_fill_info [can_dev])
[<80693bc0>] (rtnl_fill_ifinfo)
[<806949ec>] (rtnl_dump_ifinfo)
[<806b4834>] (netlink_dump)
[<806b4bc8>] (netlink_recvmsg)
[<8065f180>] (sock_recvmsg)
[<80660f90>] (___sys_recvmsg)
[<80661e7c>] (__sys_recvmsg)
[<80661ec0>] (SyS_recvmsg)
[<80108b20>] (ret_fast_syscall+0x0/0x1c)
agetty listens to netlink messages in order to update the login prompt
when IP addresses change (if /etc/issue contains \4 or \6 escape codes):
https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git/commit/?id=e36deb6424e8
It's a useful feature, though it seems questionable that it causes CAN
bit error statistics to be queried.
Be that as it may, if hi3110_get_berr_counter() is invoked while a frame
is sent by hi3110_hw_tx(), bogus SPI transfers like the following may
occur:
=> 12 00 (hi3110_get_berr_counter() wanted to transmit
EC 00 to query the transmit error counter,
but the first byte was overwritten by
hi3110_hw_tx_frame())
=> EA 00 3E 80 01 FB (hi3110_hw_tx_frame() wanted to transmit a
frame, but the first byte was overwritten by
hi3110_get_berr_counter() because it wanted
to query the receive error counter)
This sequence hangs the transmission because the driver believes it has
sent a frame and waits for the interrupt signaling completion, but in
reality the chip has never sent away the frame since the commands it
received were malformed.
Fix by acquiring the SPI lock in hi3110_get_berr_counter().
I've scrutinized the entire driver for further unlocked SPI accesses but
found no others.
Cc: Mathias Duckeck <m.duckeck@kunbus.de>
Cc: Akshay Bhat <akshay.bhat@timesys.com>
Cc: Casey Fitzpatrick <casey.fitzpatrick@timesys.com>
Cc: Stef Walter <stefw@redhat.com>
Cc: Karel Zak <kzak@redhat.com>
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Due to user confusion, clarify that it doesn't make sense to try to
create a thin-pool with "read_only" mode enabled.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Commit 0847684cfc5f0 (PCI / PM: Simplify device wakeup settings code)
went too far and dropped the device_may_wakeup() check from
pci_enable_wake() which causes wakeup to be enabled during system
suspend, hibernation or shutdown for some PCI devices that are not
allowed by user space to wake up the system from sleep (or power off).
As a result of this, excessive power is drawn by some of the affected
systems while in sleep states or off.
Restore the device_may_wakeup() check in pci_enable_wake(), but make
sure that the PCI bus type's runtime suspend callback will not call
device_may_wakeup() which is about system wakeup from sleep and not
about device wakeup from runtime suspend.
Fixes: 0847684cfc5f0 (PCI / PM: Simplify device wakeup settings code)
Reported-by: Joseph Salisbury <joseph.salisbury@canonical.com>
Cc: 4.13+ <stable@vger.kernel.org> # 4.13+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
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The performance drop if the default TDP more than 256 Watt
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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When we get link properties through netlink interface with
tipc_nl_node_get_link(), we don't validate TIPC_NLA_LINK_NAME
attribute at all, instead we directly use it. As a consequence,
KMSAN detected the TIPC_NLA_LINK_NAME attribute was an uninitialized
value, and then posted the following complaint:
==================================================================
BUG: KMSAN: uninit-value in strcmp+0xf7/0x160 lib/string.c:329
CPU: 1 PID: 4527 Comm: syz-executor655 Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x185/0x1d0 lib/dump_stack.c:53
kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
__msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683
strcmp+0xf7/0x160 lib/string.c:329
tipc_nl_node_get_link+0x220/0x6f0 net/tipc/node.c:1881
genl_family_rcv_msg net/netlink/genetlink.c:599 [inline]
genl_rcv_msg+0x1686/0x1810 net/netlink/genetlink.c:624
netlink_rcv_skb+0x378/0x600 net/netlink/af_netlink.c:2447
genl_rcv+0x63/0x80 net/netlink/genetlink.c:635
netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
netlink_unicast+0x166b/0x1740 net/netlink/af_netlink.c:1337
netlink_sendmsg+0x1048/0x1310 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:630 [inline]
sock_sendmsg net/socket.c:640 [inline]
___sys_sendmsg+0xec0/0x1310 net/socket.c:2046
__sys_sendmsg net/socket.c:2080 [inline]
SYSC_sendmsg+0x2a3/0x3d0 net/socket.c:2091
SyS_sendmsg+0x54/0x80 net/socket.c:2087
do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x445589
RSP: 002b:00007fb7ee66cdb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445589
RDX: 0000000000000000 RSI: 0000000020023000 RDI: 0000000000000003
RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffa2bf3f3f R14: 00007fb7ee66d9c0 R15: 0000000000000001
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:188
kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:314
kmsan_slab_alloc+0x11/0x20 mm/kmsan/kmsan.c:321
slab_post_alloc_hook mm/slab.h:445 [inline]
slab_alloc_node mm/slub.c:2737 [inline]
__kmalloc_node_track_caller+0xaed/0x11c0 mm/slub.c:4369
__kmalloc_reserve net/core/skbuff.c:138 [inline]
__alloc_skb+0x2cf/0x9f0 net/core/skbuff.c:206
alloc_skb include/linux/skbuff.h:984 [inline]
netlink_alloc_large_skb net/netlink/af_netlink.c:1183 [inline]
netlink_sendmsg+0x9a6/0x1310 net/netlink/af_netlink.c:1875
sock_sendmsg_nosec net/socket.c:630 [inline]
sock_sendmsg net/socket.c:640 [inline]
___sys_sendmsg+0xec0/0x1310 net/socket.c:2046
__sys_sendmsg net/socket.c:2080 [inline]
SYSC_sendmsg+0x2a3/0x3d0 net/socket.c:2091
SyS_sendmsg+0x54/0x80 net/socket.c:2087
do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
==================================================================
To quiet the complaint, TIPC_NLA_LINK_NAME attribute has been
validated in tipc_nl_node_get_link() before it's used.
Reported-by: syzbot+df0257c92ffd4fcc58cd@syzkaller.appspotmail.com
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are follow comment errors:
1 The function name is wrong in p9_release_pages() comment.
2 The function name and variable name is wrong in p9_poll_workfn() comment.
3 There is no variable dm_mr and lkey in struct p9_trans_rdma.
4 The function name is wrong in rdma_create_trans() comment.
5 There is no variable initialized in struct virtio_chan.
6 The variable name is wrong in p9_virtio_zc_request() comment.
Signed-off-by: Sun Lianwen <sunlw.fnst@cn.fujitsu.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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dio_get_pagev_size() and dio_get_pages_alloc() introduced in commit
b5b98989dc7e ("ceph: combine as many iovec as possile into one OSD
request") assume that the passed iov_iter is ITER_IOVEC. This isn't
the case with splice where it ends up poking into the guts of ITER_BVEC
or ITER_PIPE iterators, causing lockups and crashes easily reproduced
with generic/095.
Rather than trying to figure out gap alignment and stuff pages into
a page vector, add a helper for going from iov_iter to a bio_vec array
and make use of the new CEPH_OSD_DATA_TYPE_BVECS code.
Fixes: b5b98989dc7e ("ceph: combine as many iovec as possile into one OSD request")
Link: http://tracker.ceph.com/issues/18130
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Tested-by: Luis Henriques <lhenriques@suse.com>
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... and store num_bvecs for client code's convenience.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
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rsize/wsize cap should be applied before ceph_osdc_new_request() is
called. Otherwise, if the size is limited by the cap instead of the
stripe unit, ceph_osdc_new_request() would setup an extent op that is
bigger than what dio_get_pages_alloc() would pin and add to the page
vector, triggering asserts in the messenger.
Cc: stable@vger.kernel.org
Fixes: 95cca2b44e54 ("ceph: limit osd write size")
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
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NAND chips require a bit of time to take the NAND operation into
account and set the BUSY bit in the STATUS reg. Make sure we don't poll
the STATUS reg too early in nand_soft_waitrdy().
Fixes: 8878b126df76 ("mtd: nand: add ->exec_op() implementation")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
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Currently; we're grabbing all of the modesetting locks before adding MST
connectors to fbdev. This isn't actually necessary, and causes a
deadlock as well:
======================================================
WARNING: possible circular locking dependency detected
4.17.0-rc3Lyude-Test+ #1 Tainted: G O
------------------------------------------------------
kworker/1:0/18 is trying to acquire lock:
00000000c832f62d (&helper->lock){+.+.}, at: drm_fb_helper_add_one_connector+0x2a/0x60 [drm_kms_helper]
but task is already holding lock:
00000000942e28e2 (crtc_ww_class_mutex){+.+.}, at: drm_modeset_backoff+0x8e/0x1c0 [drm]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (crtc_ww_class_mutex){+.+.}:
ww_mutex_lock+0x43/0x80
drm_modeset_lock+0x71/0x130 [drm]
drm_helper_probe_single_connector_modes+0x7d/0x6b0 [drm_kms_helper]
drm_setup_crtcs+0x15e/0xc90 [drm_kms_helper]
__drm_fb_helper_initial_config_and_unlock+0x29/0x480 [drm_kms_helper]
nouveau_fbcon_init+0x138/0x1a0 [nouveau]
nouveau_drm_load+0x173/0x7e0 [nouveau]
drm_dev_register+0x134/0x1c0 [drm]
drm_get_pci_dev+0x8e/0x160 [drm]
nouveau_drm_probe+0x1a9/0x230 [nouveau]
pci_device_probe+0xcd/0x150
driver_probe_device+0x30b/0x480
__driver_attach+0xbc/0xe0
bus_for_each_dev+0x67/0x90
bus_add_driver+0x164/0x260
driver_register+0x57/0xc0
do_one_initcall+0x4d/0x323
do_init_module+0x5b/0x1f8
load_module+0x20e5/0x2ac0
__do_sys_finit_module+0xb7/0xd0
do_syscall_64+0x60/0x1b0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #2 (crtc_ww_class_acquire){+.+.}:
drm_helper_probe_single_connector_modes+0x58/0x6b0 [drm_kms_helper]
drm_setup_crtcs+0x15e/0xc90 [drm_kms_helper]
__drm_fb_helper_initial_config_and_unlock+0x29/0x480 [drm_kms_helper]
nouveau_fbcon_init+0x138/0x1a0 [nouveau]
nouveau_drm_load+0x173/0x7e0 [nouveau]
drm_dev_register+0x134/0x1c0 [drm]
drm_get_pci_dev+0x8e/0x160 [drm]
nouveau_drm_probe+0x1a9/0x230 [nouveau]
pci_device_probe+0xcd/0x150
driver_probe_device+0x30b/0x480
__driver_attach+0xbc/0xe0
bus_for_each_dev+0x67/0x90
bus_add_driver+0x164/0x260
driver_register+0x57/0xc0
do_one_initcall+0x4d/0x323
do_init_module+0x5b/0x1f8
load_module+0x20e5/0x2ac0
__do_sys_finit_module+0xb7/0xd0
do_syscall_64+0x60/0x1b0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #1 (&dev->mode_config.mutex){+.+.}:
drm_setup_crtcs+0x10c/0xc90 [drm_kms_helper]
__drm_fb_helper_initial_config_and_unlock+0x29/0x480 [drm_kms_helper]
nouveau_fbcon_init+0x138/0x1a0 [nouveau]
nouveau_drm_load+0x173/0x7e0 [nouveau]
drm_dev_register+0x134/0x1c0 [drm]
drm_get_pci_dev+0x8e/0x160 [drm]
nouveau_drm_probe+0x1a9/0x230 [nouveau]
pci_device_probe+0xcd/0x150
driver_probe_device+0x30b/0x480
__driver_attach+0xbc/0xe0
bus_for_each_dev+0x67/0x90
bus_add_driver+0x164/0x260
driver_register+0x57/0xc0
do_one_initcall+0x4d/0x323
do_init_module+0x5b/0x1f8
load_module+0x20e5/0x2ac0
__do_sys_finit_module+0xb7/0xd0
do_syscall_64+0x60/0x1b0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #0 (&helper->lock){+.+.}:
__mutex_lock+0x70/0x9d0
drm_fb_helper_add_one_connector+0x2a/0x60 [drm_kms_helper]
nv50_mstm_register_connector+0x2c/0x50 [nouveau]
drm_dp_add_port+0x2f5/0x420 [drm_kms_helper]
drm_dp_send_link_address+0x155/0x1e0 [drm_kms_helper]
drm_dp_add_port+0x33f/0x420 [drm_kms_helper]
drm_dp_send_link_address+0x155/0x1e0 [drm_kms_helper]
drm_dp_check_and_send_link_address+0x87/0xd0 [drm_kms_helper]
drm_dp_mst_link_probe_work+0x4d/0x80 [drm_kms_helper]
process_one_work+0x20d/0x650
worker_thread+0x3a/0x390
kthread+0x11e/0x140
ret_from_fork+0x3a/0x50
other info that might help us debug this:
Chain exists of:
&helper->lock --> crtc_ww_class_acquire --> crtc_ww_class_mutex
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(crtc_ww_class_mutex);
lock(crtc_ww_class_acquire);
lock(crtc_ww_class_mutex);
lock(&helper->lock);
*** DEADLOCK ***
5 locks held by kworker/1:0/18:
#0: 000000004a05cd50 ((wq_completion)"events_long"){+.+.}, at: process_one_work+0x187/0x650
#1: 00000000601c11d1 ((work_completion)(&mgr->work)){+.+.}, at: process_one_work+0x187/0x650
#2: 00000000586ca0df (&dev->mode_config.mutex){+.+.}, at: drm_modeset_lock_all+0x3a/0x1b0 [drm]
#3: 00000000d3ca0ffa (crtc_ww_class_acquire){+.+.}, at: drm_modeset_lock_all+0x44/0x1b0 [drm]
#4: 00000000942e28e2 (crtc_ww_class_mutex){+.+.}, at: drm_modeset_backoff+0x8e/0x1c0 [drm]
stack backtrace:
CPU: 1 PID: 18 Comm: kworker/1:0 Tainted: G O 4.17.0-rc3Lyude-Test+ #1
Hardware name: Gateway FX6840/FX6840, BIOS P01-A3 05/17/2010
Workqueue: events_long drm_dp_mst_link_probe_work [drm_kms_helper]
Call Trace:
dump_stack+0x85/0xcb
print_circular_bug.isra.38+0x1ce/0x1db
__lock_acquire+0x128f/0x1350
? lock_acquire+0x9f/0x200
? lock_acquire+0x9f/0x200
? __ww_mutex_lock.constprop.13+0x8f/0x1000
lock_acquire+0x9f/0x200
? drm_fb_helper_add_one_connector+0x2a/0x60 [drm_kms_helper]
? drm_fb_helper_add_one_connector+0x2a/0x60 [drm_kms_helper]
__mutex_lock+0x70/0x9d0
? drm_fb_helper_add_one_connector+0x2a/0x60 [drm_kms_helper]
? ww_mutex_lock+0x43/0x80
? _cond_resched+0x15/0x30
? ww_mutex_lock+0x43/0x80
? drm_modeset_lock+0xb2/0x130 [drm]
? drm_fb_helper_add_one_connector+0x2a/0x60 [drm_kms_helper]
drm_fb_helper_add_one_connector+0x2a/0x60 [drm_kms_helper]
nv50_mstm_register_connector+0x2c/0x50 [nouveau]
drm_dp_add_port+0x2f5/0x420 [drm_kms_helper]
? mark_held_locks+0x50/0x80
? kfree+0xcf/0x2a0
? drm_dp_check_mstb_guid+0xd6/0x120 [drm_kms_helper]
? trace_hardirqs_on_caller+0xed/0x180
? drm_dp_check_mstb_guid+0xd6/0x120 [drm_kms_helper]
drm_dp_send_link_address+0x155/0x1e0 [drm_kms_helper]
drm_dp_add_port+0x33f/0x420 [drm_kms_helper]
? nouveau_connector_aux_xfer+0x7c/0xb0 [nouveau]
? find_held_lock+0x2d/0x90
? drm_dp_dpcd_access+0xd9/0xf0 [drm_kms_helper]
? __mutex_unlock_slowpath+0x3b/0x280
? drm_dp_dpcd_access+0xd9/0xf0 [drm_kms_helper]
drm_dp_send_link_address+0x155/0x1e0 [drm_kms_helper]
drm_dp_check_and_send_link_address+0x87/0xd0 [drm_kms_helper]
drm_dp_mst_link_probe_work+0x4d/0x80 [drm_kms_helper]
process_one_work+0x20d/0x650
worker_thread+0x3a/0x390
? process_one_work+0x650/0x650
kthread+0x11e/0x140
? kthread_create_worker_on_cpu+0x50/0x50
ret_from_fork+0x3a/0x50
Taking example from i915, the only time we need to hold any modesetting
locks is when changing the port on the mstc, and in that case we only
need to hold the connection mutex.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Potentially responsible for some random OOPSes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org [v4.15+]
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Both ‘uninorth_remove_memory’ and ‘null_cache_flush’ can be made
static. So make them.
Silence the following gcc warning (W=1):
drivers/char/agp/uninorth-agp.c:198:5: warning: no previous prototype for ‘uninorth_remove_memory’ [-Wmissing-prototypes]
and
drivers/char/agp/uninorth-agp.c:473:6: warning: no previous prototype for ‘null_cache_flush’ [-Wmissing-prototypes]
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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In order to keep consist with Vega,
the output format of the pp_power_profile_mode would be
<integer><mode name string>< “*” for current profile>:"detail settings"
and remove the "CURRENT" mode line.
for example:
NUM MODE_NAME SCLK_UP_HYST SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL MCLK_UP_HYST MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL
0 3D_FULL_SCREEN: 0 100 30 0 100 10
1 POWER_SAVING: 10 0 30 - - -
2 VIDEO: - - - 10 16 31
3 VR: 0 11 50 0 100 10
4 COMPUTE: 0 5 30 - - -
5 CUSTOM *: 0 5 30 0 100 10
NUM MODE_NAME SCLK_UP_HYST SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL MCLK_UP_HYST MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL
0 3D_FULL_SCREEN: 0 100 30 0 100 10
1 POWER_SAVING *: 10 0 30 0 100 10
2 VIDEO: - - - 10 16 31
3 VR: 0 11 50 0 100 10
4 COMPUTE: 0 5 30 - - -
5 CUSTOM: - - - - - -
Reviewed-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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v2:
Use dma_fence_wait instead of dma_fence_wait_timeout(...,MAX_SCHEDULE_TIMEOUT)
Avoid printing error message for ERESTARTSYS
Originally-by: David Panariti <David.Panariti@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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GFP_TRANSHUGE tries very hard to allocate huge pages, which can result
in long delays with high memory pressure. I have observed firefox
freezing for up to around a minute due to this while restic was taking
a full system backup.
Since we don't really need huge pages, use GFP_TRANSHUGE_LIGHT |
__GFP_NORETRY instead, in order to fail quickly when there are no huge
pages available.
Set __GFP_KSWAPD_RECLAIM as well, in order for huge pages to be freed
up in the background if necessary.
With these changes, I'm no longer seeing freezes during a restic backup.
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Allocating up to 32 physically contiguous pages can easily fail (and has
failed for me), and isn't necessary anyway.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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The two ranges overlap.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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|
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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As per listxattr(2):
On success, a nonnegative number is returned indicating the size
of the extended attribute name list. On failure, -1 is returned
and errno is set appropriately.
In SMB1, when the server returns an empty EA list through a listxattr(),
it will correctly return 0 as there are no EAs for the given file.
However, in SMB2+, it returns -ENODATA in listxattr() which is wrong since
the request and response were sent successfully, although there's no actual
EA for the given file.
This patch fixes listxattr() for SMB2+ by returning 0 in cifs_listxattr()
when the server returns an empty list of EAs.
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <smfrench@gmail.com>
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Now signing is supported with RDMA transport.
Remove the code that disabled it.
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
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The data buffer allocated on the stack can't be DMA'ed, ib_dma_map_page will
return an invalid DMA address for a buffer on stack. Even worse, this
incorrect address can't be detected by ib_dma_mapping_error. Sending data
from this address to hardware will not fail, but the remote peer will get
junk data.
Fix this by allocating the request on the heap in smb3_validate_negotiate.
Changes in v2:
Removed duplicated code on freeing buffers on function exit.
(Thanks to Parav Pandit <parav@mellanox.com>)
Fixed typo in the patch title.
Changes in v3:
Added "Fixes" to the patch.
Changed several sizeof() to use *pointer in place of struct.
Changes in v4:
Added detailed comments on the failure through RDMA.
Allocate request buffer using GPF_NOFS.
Fixed possible memory leak.
Changes in v5:
Removed variable ret for checking return value.
Changed to use pneg_inbuf->Dialects[0] to calculate unused space in pneg_inbuf.
Fixes: ff1c038addc4 ("Check SMB3 dialects against downgrade attacks")
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Tom Talpey <ttalpey@microsoft.com>
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The NVIDIA Denver CPU also needs a PSCI call to harden the branch
predictor.
Signed-off-by: David Gilhooley <dgilhooley@nvidia.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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This patch adds the MIDR encodings for NVIDIA as well as
the Denver and Carmel CPUs used in Tegra SoCs.
Signed-off-by: David Gilhooley <dgilhooley@nvidia.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The 0457:10fb touchscreen found on the Toshiba Click Mini L9W-B needs
to have a report-decriptors command send to it on resume in order for
the touchscreen to start generating events again on resume.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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USB controller ASM1042 stops working after commit de3ef1eb1cd0 (PM /
core: Drop run_wake flag from struct dev_pm_info).
The device in question is not power managed by platform firmware,
furthermore, it only supports PME# from D3cold:
Capabilities: [78] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot-,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Before commit de3ef1eb1cd0, the device never gets runtime suspended.
After that commit, the device gets runtime suspended to D3hot, which can
not generate any PME#.
usb_hcd_pci_probe() unconditionally calls device_wakeup_enable(), hence
device_can_wakeup() in pci_dev_run_wake() always returns true.
So pci_dev_run_wake() needs to check PME wakeup capability as its first
condition.
In addition, change wakeup flag passed to pci_target_state() from false
to true, because we want to find the deepest state different from D3cold
that the device can still generate PME#. In this case, it's D0 for the
device in question.
Fixes: de3ef1eb1cd0 (PM / core: Drop run_wake flag from struct dev_pm_info)
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: 4.13+ <stable@vger.kernel.org> # 4.13+
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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If the next_freq field of struct sugov_policy is set to UINT_MAX,
it shouldn't be used for updating the CPU frequency (this is a
special "invalid" value), but after commit b7eaf1aab9f8 (cpufreq:
schedutil: Avoid reducing frequency of busy CPUs prematurely) it
may be passed as the new frequency to sugov_update_commit() in
sugov_update_single().
Fix that by adding an extra check for the special UINT_MAX value
of next_freq to sugov_update_single().
Fixes: b7eaf1aab9f8 (cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely)
Reported-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.12+ <stable@vger.kernel.org> # 4.12+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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After commit 794a56ebd9a57 (sched/cpufreq: Change the worker kthread to
SCHED_DEADLINE) schedutil kthreads are "ignored" for a clock frequency
selection point of view, so the potential corner case for RT tasks is not
possible at all now.
Remove the stale comment mentioning it.
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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