Jack Morgenstein [Mon, 30 Jan 2017 13:11:45 +0000 (15:11 +0200)]
net/mlx4_core: Avoid command timeouts during VF driver device shutdown
Some Hypervisors detach VFs from VMs by instantly causing an FLR event
to be generated for a VF.
In the mlx4 case, this will cause that VF's comm channel to be disabled
before the VM has an opportunity to invoke the VF device's "shutdown"
method.
The result is that the VF driver on the VM will experience a command
timeout during the shutdown process when the Hypervisor does not deliver
a command-completion event to the VM.
To avoid FW command timeouts on the VM when the driver's shutdown method
is invoked, we detect the absence of the VF's comm channel at the very
start of the shutdown process. If the comm-channel has already been
disabled, we cause all FW commands during the device shutdown process to
immediately return success (and thus avoid all command timeouts).
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 30 Jan 2017 20:44:05 +0000 (15:44 -0500)]
Merge tag 'mlx5-fixes-2017-01-27' of git://git./linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-fixes-2017-01-27
A couple of mlx5 core and ethernet driver fixes.
From Or, A couple of error return values and error handling fixes.
From Hadar, Support TC encapsulation offloads even when the mlx5e uplink
device is stacked under an upper device.
From Gal, Two patches to fix RSS hash modifications via ethtool.
From Moshe, Added a needed ets capability check.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 30 Jan 2017 20:19:23 +0000 (15:19 -0500)]
Merge tag 'wireless-drivers-for-davem-2017-01-29' of git://git./linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 4.10
Most important here are fixes to two iwlwifi crashes, but there's also
a firmware naming fix for iwlwifi and a revert of an older bcma patch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Arseny Solokha [Sun, 29 Jan 2017 12:52:20 +0000 (19:52 +0700)]
gianfar: synchronize DMA API usage by free_skb_rx_queue w/ gfar_new_page
In spite of switching to paged allocation of Rx buffers, the driver still
called dma_unmap_single() in the Rx queues tear-down path.
The DMA region unmapping code in free_skb_rx_queue() basically predates
the introduction of paged allocation to the driver. While being refactored,
it apparently hasn't reflected the change in the DMA API usage by its
counterpart gfar_new_page().
As a result, setting an interface to the DOWN state now yields the following:
# ip link set eth2 down
fsl-gianfar
ffe24000.ethernet: DMA-API: device driver frees DMA memory with wrong function [device address=0x000000001ecd0000] [size=40]
------------[ cut here ]------------
WARNING: CPU: 1 PID: 189 at lib/dma-debug.c:1123 check_unmap+0x8e0/0xa28
CPU: 1 PID: 189 Comm: ip Tainted: G O 4.9.5 #1
task:
dee73400 task.stack:
dede2000
NIP:
c02101e8 LR:
c02101e8 CTR:
c0260d74
REGS:
dede3bb0 TRAP: 0700 Tainted: G O (4.9.5)
MSR:
00021000 <CE,ME> CR:
28002222 XER:
00000000
GPR00:
c02101e8 dede3c60 dee73400 000000b6 dfbd033c dfbd36c4 1f622000 dede2000
GPR08:
00000007 c05b1634 1f622000 00000000 22002484 100a9904 00000000 00000000
GPR16:
00000000 db4c849c 00000002 db4c8480 00000001 df142240 db4c84bc 00000000
GPR24:
c0706148 c0700000 00029000 c07552e8 c07323b4 dede3cb8 c07605e0 db535540
NIP [
c02101e8] check_unmap+0x8e0/0xa28
LR [
c02101e8] check_unmap+0x8e0/0xa28
Call Trace:
[
dede3c60] [
c02101e8] check_unmap+0x8e0/0xa28 (unreliable)
[
dede3cb0] [
c02103b8] debug_dma_unmap_page+0x88/0x9c
[
dede3d30] [
c02dffbc] free_skb_resources+0x2c4/0x404
[
dede3d80] [
c02e39b4] gfar_close+0x24/0xc8
[
dede3da0] [
c0361550] __dev_close_many+0xa0/0xf8
[
dede3dd0] [
c03616f0] __dev_close+0x2c/0x4c
[
dede3df0] [
c036b1b8] __dev_change_flags+0xa0/0x174
[
dede3e10] [
c036b2ac] dev_change_flags+0x20/0x60
[
dede3e30] [
c03e130c] devinet_ioctl+0x540/0x824
[
dede3e90] [
c0347dcc] sock_ioctl+0x134/0x298
[
dede3eb0] [
c0111814] do_vfs_ioctl+0xac/0x854
[
dede3f20] [
c0111ffc] SyS_ioctl+0x40/0x74
[
dede3f40] [
c000f290] ret_from_syscall+0x0/0x3c
--- interrupt: c01 at 0xff45da0
LR = 0xff45cd0
Instruction dump:
811d001c 7c66482e 813d0020 9061000c 807f000c 5463103a 7cc6182e 3c60c052
386309ac 90c10008 4cc63182 4826b845 <
0fe00000>
4bfffa60 3c80c052 388402c4
---[ end trace
695ae6d7ac1d0c47 ]---
Mapped at:
[<
c02e22a8>] gfar_alloc_rx_buffs+0x178/0x248
[<
c02e3ef0>] startup_gfar+0x368/0x570
[<
c036aeb4>] __dev_open+0xdc/0x150
[<
c036b1b8>] __dev_change_flags+0xa0/0x174
[<
c036b2ac>] dev_change_flags+0x20/0x60
Even though the issue was discovered in 4.9 kernel, the code in question
is identical in the current net and net-next trees.
Fixes:
75354148ce69 ("gianfar: Add paged allocation and Rx S/G")
Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru>
Acked-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pavel Belous [Sat, 28 Jan 2017 19:53:28 +0000 (22:53 +0300)]
net: ethtool: add support for 2500BaseT and 5000BaseT link modes
This patch introduce support for 2500BaseT and 5000BaseT link modes.
These modes are included in the new IEEE 802.3bz standard.
Signed-off-by: Pavel Belous <pavel.s.belous@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Khoroshilov [Fri, 27 Jan 2017 22:07:30 +0000 (01:07 +0300)]
net: adaptec: starfire: add checks for dma mapping errors
init_ring(), refill_rx_ring() and start_tx() don't check
if mapping dma memory succeed.
The patch adds the checks and failure handling.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Nyekjaer [Fri, 27 Jan 2017 20:39:03 +0000 (21:39 +0100)]
net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause
As pr commit "net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause"
this phy driver should not set these feature bits.
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Fixes:
9d162ed69f51 ("net: phy: micrel: add support for KSZ8795")
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 27 Jan 2017 16:11:44 +0000 (08:11 -0800)]
can: Fix kernel panic at security_sock_rcv_skb
Zhang Yanmin reported crashes [1] and provided a patch adding a
synchronize_rcu() call in can_rx_unregister()
The main problem seems that the sockets themselves are not RCU
protected.
If CAN uses RCU for delivery, then sockets should be freed only after
one RCU grace period.
Recent kernels could use sock_set_flag(sk, SOCK_RCU_FREE), but let's
ease stable backports with the following fix instead.
[1]
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<
ffffffff81495e25>] selinux_socket_sock_rcv_skb+0x65/0x2a0
Call Trace:
<IRQ>
[<
ffffffff81485d8c>] security_sock_rcv_skb+0x4c/0x60
[<
ffffffff81d55771>] sk_filter+0x41/0x210
[<
ffffffff81d12913>] sock_queue_rcv_skb+0x53/0x3a0
[<
ffffffff81f0a2b3>] raw_rcv+0x2a3/0x3c0
[<
ffffffff81f06eab>] can_rcv_filter+0x12b/0x370
[<
ffffffff81f07af9>] can_receive+0xd9/0x120
[<
ffffffff81f07beb>] can_rcv+0xab/0x100
[<
ffffffff81d362ac>] __netif_receive_skb_core+0xd8c/0x11f0
[<
ffffffff81d36734>] __netif_receive_skb+0x24/0xb0
[<
ffffffff81d37f67>] process_backlog+0x127/0x280
[<
ffffffff81d36f7b>] net_rx_action+0x33b/0x4f0
[<
ffffffff810c88d4>] __do_softirq+0x184/0x440
[<
ffffffff81f9e86c>] do_softirq_own_stack+0x1c/0x30
<EOI>
[<
ffffffff810c76fb>] do_softirq.part.18+0x3b/0x40
[<
ffffffff810c8bed>] do_softirq+0x1d/0x20
[<
ffffffff81d30085>] netif_rx_ni+0xe5/0x110
[<
ffffffff8199cc87>] slcan_receive_buf+0x507/0x520
[<
ffffffff8167ef7c>] flush_to_ldisc+0x21c/0x230
[<
ffffffff810e3baf>] process_one_work+0x24f/0x670
[<
ffffffff810e44ed>] worker_thread+0x9d/0x6f0
[<
ffffffff810e4450>] ? rescuer_thread+0x480/0x480
[<
ffffffff810ebafc>] kthread+0x12c/0x150
[<
ffffffff81f9ccef>] ret_from_fork+0x3f/0x70
Reported-by: Zhang Yanmin <yanmin.zhang@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rafal Ozieblo [Fri, 27 Jan 2017 15:08:20 +0000 (15:08 +0000)]
net: macb: Fix 64 bit addressing support for GEM
This patch adds support for 32 bit GEM in
64 bit system. It checks capability at runtime
and uses appropriate buffer descriptor.
Signed-off-by: Rafal Ozieblo <rafalo@cadence.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Brodkin [Fri, 27 Jan 2017 12:24:43 +0000 (15:24 +0300)]
stmmac: Discard masked flags in interrupt status register
DW GMAC databook says the following about bits in "Register 15 (Interrupt
Mask Register)":
--------------------------->8-------------------------
When set, this bit __disables_the_assertion_of_the_interrupt_signal__
because of the setting of XXX bit in Register 14 (Interrupt
Status Register).
--------------------------->8-------------------------
In fact even if we mask one bit in the mask register it doesn't prevent
corresponding bit to appear in the status register, it only disables
interrupt generation for corresponding event.
But currently we expect a bit different behavior: status bits to be in
sync with their masks, i.e. if mask for bit A is set in the mask
register then bit A won't appear in the interrupt status register.
This was proven to be incorrect assumption, see discussion here [1].
That misunderstanding causes unexpected behaviour of the GMAC, for
example we were happy enough to just see bogus messages about link
state changes.
So from now on we'll be only checking bits that really may trigger an
interrupt.
[1] https://lkml.org/lkml/2016/11/3/413
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Fabrice Gasnier <fabrice.gasnier@st.com>
Cc: Joachim Eastwood <manabian@gmail.com>
Cc: Phil Reid <preid@electromag.com.au>
Cc: David Miller <davem@davemloft.net>
Cc: Alexandre Torgue <alexandre.torgue@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moshe Shemesh [Thu, 19 Jan 2017 12:53:07 +0000 (14:53 +0200)]
net/mlx5e: Check ets capability before ets query FW command
On dcbnl callback getpgtccfgtx, the driver should check the ets
capability before ets query command is sent to firmware.
It is valid to return from this void function without changing in/out
parameters, as these parameters are initialized to
DCB_ATTR_VALUE_UNDEFINED.
Fixes:
3a6a931dfb8e ("net/mlx5e: Support DCBX CEE API")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Gal Pressman [Thu, 12 Jan 2017 14:25:46 +0000 (16:25 +0200)]
net/mlx5e: Fix update of hash function/key via ethtool
Modifying TIR hash should change selected fields bitmask in addition to
the function and key.
Formerly, Only on ethool mlx5e_set_rxfh "ethtoo -X" we would not set this
field resulting in zeroing of its value, which means no packet fields are
used for RX RSS hash calculation thus causing all traffic to arrive in
RQ[0].
On driver load out of the box we don't have this issue, since the TIR
hash is fully created from scratch.
Tested:
ethtool -X ethX hkey <new key>
ethtool -X ethX hfunc <new func>
ethtool -X ethX equal <new indirection table>
All cases are verified with TCP Multi-Stream traffic over IPv4 & IPv6.
Fixes:
bdfc028de1b3 ("net/mlx5e: Fix ethtool RX hash func configuration change")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Gal Pressman [Wed, 11 Jan 2017 12:32:26 +0000 (14:32 +0200)]
net/mlx5e: Modify TIRs hash only when it's needed
We don't need to modify our TIRs unless the user requested a change in
the hash function/key, for example when changing indirection only.
Tested:
# Modify TIRs hash is needed
ethtool -X ethX hkey <new key>
ethtool -X ethX hfunc <new func>
# Modify TIRs hash is not needed
ethtool -X ethX equal <new indirection table>
All cases are verified with TCP Multi-Stream traffic over IPv4 & IPv6.
Fixes:
bdfc028de1b3 ("net/mlx5e: Fix ethtool RX hash func configuration change")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Hadar Hen Zion [Thu, 12 Jan 2017 09:07:40 +0000 (11:07 +0200)]
net/mlx5e: Support TC encapsulation offloads with upper devices
When tunneling is used, some virtualizations systems set the (mlx5e) uplink
device to be stacked under upper devices such as bridge or ovs internal
port, where the VTEP IP address used for the encapsulation is set on
that upper device.
In order to support such use-cases, we also deal with a setup where the
egress mirred device isn't representing a port on the HW e-switch to where
the ingress device belongs. We use eswitch service function which returns
the uplink and set it as the egress device of the tc encap rule.
Fixes:
a54e20b4fcae ("net/mlx5e: Add basic TC tunnel set action for SRIOV offloads")
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Sun, 15 Jan 2017 17:05:38 +0000 (19:05 +0200)]
net/mlx5: E-Switch, Re-enable RoCE on mode change only after FDB destroy
We must re-enable RoCE on the e-switch management port (PF) only after destroying
the FDB in its switchdev/offloaded mode. Otherwise, when encapsulation is supported,
this re-enablement will fail.
Also, it's more natural and symmetric to disable RoCE on the PF before we create
the FDB under switchdev mode, so do that as well and revert if getting into error
during the mode change later.
Fixes:
9da34cd34e85 ('net/mlx5: Disable RoCE on the e-switch management [..]')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Wed, 11 Jan 2017 17:39:42 +0000 (19:39 +0200)]
net/mlx5: E-Switch, Err when retrieving steering name-space fails
Make sure to return error when we failed retrieving the FDB steering
name space. Also, while around, correctly print the error when mode
change revert fails in the warning message.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Thu, 12 Jan 2017 11:04:01 +0000 (13:04 +0200)]
net/mlx5: Return EOPNOTSUPP when failing to get steering name-space
When we fail to retrieve a hardware steering name-space, the returned error
code should say that this operation is not supported. Align the various
places in the driver where this call is made to this convention.
Also, make sure to warn when we fail to retrieve a SW (ANCHOR) name-space.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Wed, 11 Jan 2017 17:35:41 +0000 (19:35 +0200)]
net/mlx5: Change ENOTSUPP to EOPNOTSUPP
As ENOTSUPP is specific to NFS, change the return error value to
EOPNOTSUPP in various places in the mlx5 driver.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Suggested-by: Yotam Gigi <yotamg@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Kalle Valo [Fri, 27 Jan 2017 12:19:25 +0000 (14:19 +0200)]
MAINTAINERS: ath9k-devel is closed
ath9k-devel list is now closed, only linux-wireless should be used.
Reported-by: Michael Renzmann <mrenzmann@madwifi-project.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Linus Torvalds [Fri, 27 Jan 2017 20:54:16 +0000 (12:54 -0800)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) GTP fixes from Andreas Schultz (missing genl module alias, clear IP
DF on transmit).
2) Netfilter needs to reflect the fwmark when sending resets, from Pau
Espin Pedrol.
3) nftable dump OOPS fix from Liping Zhang.
4) Fix erroneous setting of VIRTIO_NET_HDR_F_DATA_VALID on transmit,
from Rolf Neugebauer.
5) Fix build error of ipt_CLUSTERIP when procfs is disabled, from Arnd
Bergmann.
6) Fix regression in handling of NETIF_F_SG in harmonize_features(),
from Eric Dumazet.
7) Fix RTNL deadlock wrt. lwtunnel module loading, from David Ahern.
8) tcp_fastopen_create_child() needs to setup tp->max_window, from
Alexey Kodanev.
9) Missing kmemdup() failure check in ipv6 segment routing code, from
Eric Dumazet.
10) Don't execute unix_bind() under the bindlock, otherwise we deadlock
with splice. From WANG Cong.
11) ip6_tnl_parse_tlv_enc_lim() potentially reallocates the skb buffer,
therefore callers must reload cached header pointers into that skb.
Fix from Eric Dumazet.
12) Fix various bugs in legacy IRQ fallback handling in alx driver, from
Tobias Regnery.
13) Do not allow lwtunnel drivers to be unloaded while they are
referenced by active instances, from Robert Shearman.
14) Fix truncated PHY LED trigger names, from Geert Uytterhoeven.
15) Fix a few regressions from virtio_net XDP support, from John
Fastabend and Jakub Kicinski.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (102 commits)
ISDN: eicon: silence misleading array-bounds warning
net: phy: micrel: add support for KSZ8795
gtp: fix cross netns recv on gtp socket
gtp: clear DF bit on GTP packet tx
gtp: add genl family modules alias
tcp: don't annotate mark on control socket from tcp_v6_send_response()
ravb: unmap descriptors when freeing rings
virtio_net: reject XDP programs using header adjustment
virtio_net: use dev_kfree_skb for small buffer XDP receive
r8152: check rx after napi is enabled
r8152: re-schedule napi for tx
r8152: avoid start_xmit to schedule napi when napi is disabled
r8152: avoid start_xmit to call napi_schedule during autosuspend
net: dsa: Bring back device detaching in dsa_slave_suspend()
net: phy: leds: Fix truncated LED trigger names
net: phy: leds: Break dependency of phy.h on phy_led_triggers.h
net: phy: leds: Clear phy_num_led_triggers on failure to avoid crash
net-next: ethernet: mediatek: change the compatible string
Documentation: devicetree: change the mediatek ethernet compatible string
bnxt_en: Fix RTNL lock usage on bnxt_get_port_module_status().
...
Linus Torvalds [Fri, 27 Jan 2017 20:44:32 +0000 (12:44 -0800)]
Merge tag 'xfs-for-linus-4.10-rc6-5' of git://git./fs/xfs/xfs-linux
Pull xfs uodates from Darrick Wong:
"I have some more fixes this week: better input validation, corruption
avoidance, build fixes, memory leak fixes, and a couple from Christoph
to avoid an ENOSPC failure.
Summary:
- Fix race conditions in the CoW code
- Fix some incorrect input validation checks
- Avoid crashing fs by running out of space when freeing inodes
- Fix toctou race wrt whether or not an inode has an attr
- Fix build error on arm
- Fix page refcount corruption when readahead fails
- Don't corrupt userspace in the bmap ioctl"
* tag 'xfs-for-linus-4.10-rc6-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: prevent quotacheck from overloading inode lru
xfs: fix bmv_count confusion w/ shared extents
xfs: clear _XBF_PAGES from buffers when readahead page
xfs: extsize hints are not unlikely in xfs_bmap_btalloc
xfs: remove racy hasattr check from attr ops
xfs: use per-AG reservations for the finobt
xfs: only update mount/resv fields on success in __xfs_ag_resv_init
xfs: verify dirblocklog correctly
xfs: fix COW writeback race
Linus Torvalds [Fri, 27 Jan 2017 20:41:46 +0000 (12:41 -0800)]
Merge branch 'for-linus-4.10' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason:
"Some fixes that we've collected from the list.
We still have one more pending to nail down a regression in lzo
compression, but I wanted to get this batch out the door"
* 'for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: remove ->{get, set}_acl() from btrfs_dir_ro_inode_operations
Btrfs: disable xattr operations on subvolume directories
Btrfs: remove old tree_root case in btrfs_read_locked_inode()
Btrfs: fix truncate down when no_holes feature is enabled
Btrfs: Fix deadlock between direct IO and fast fsync
btrfs: fix false enospc error when truncating heavily reflinked file
Linus Torvalds [Fri, 27 Jan 2017 20:36:39 +0000 (12:36 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A set of fixes for this series. This contains:
- Set of fixes for the nvme target code
- A revert of patch from this merge window, causing a regression with
WRITE_SAME on iSCSI targets at least.
- A fix for a use-after-free in the new O_DIRECT bdev code.
- Two fixes for the xen-blkfront driver"
* 'for-linus' of git://git.kernel.dk/linux-block:
Revert "sd: remove __data_len hack for WRITE SAME"
nvme-fc: use blk_rq_nr_phys_segments
nvmet-rdma: Fix missing dma sync to nvme data structures
nvmet: Call fatal_error from keep-alive timout expiration
nvmet: cancel fatal error and flush async work before free controller
nvmet: delete controllers deletion upon subsystem release
nvmet_fc: correct logic in disconnect queue LS handling
block: fix use after free in __blkdev_direct_IO
xen-blkfront: correct maximum segment accounting
xen-blkfront: feature flags handling adjustments
Linus Torvalds [Fri, 27 Jan 2017 20:29:30 +0000 (12:29 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/dledford/rdma
Pull rdma fixes from Doug Ledford:
"Second round of -rc fixes for 4.10.
This -rc cycle has been slow for the rdma subsystem. I had already
sent you the first batch before the Holiday break. After that, we kept
only getting a few here or there. Up until this week, when I got a
drop of 13 to one driver (qedr). So, here's the -rc patches I have. I
currently have none held in reserve, so unless something new comes in,
this is it until the next merge window opens.
Summary:
- series of iw_cxgb4 fixes to make it work with the drain cq API
- one or two patches each to: srp, iser, cxgb3, vmw_pvrdma, umem,
rxe, and ipoib
- one big series (13 patches) for the new qedr driver"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (27 commits)
RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
IB/rxe: Prevent from completer to operate on non valid QP
IB/rxe: Fix rxe dev insertion to rxe_dev_list
IB/umem: Release pid in error and ODP flow
RDMA/qedr: Dispatch port active event from qedr_add
RDMA/qedr: Fix and simplify memory leak in PD alloc
RDMA/qedr: Fix RDMA CM loopback
RDMA/qedr: Fix formatting
RDMA/qedr: Mark three functions as static
RDMA/qedr: Don't reset QP when queues aren't flushed
RDMA/qedr: Don't spam dmesg if QP is in error state
RDMA/qedr: Remove CQ spinlock from CM completion handlers
RDMA/qedr: Return max inline data in QP query result
RDMA/qedr: Return success when not changing QP state
RDMA/qedr: Add uapi header qedr-abi.h
RDMA/qedr: Fix MTU returned from QP query
RDMA/core: Add the function ib_mtu_int_to_enum
IB/vmw_pvrdma: Fix incorrect cleanup on pvrdma_pci_probe error path
IB/vmw_pvrdma: Don't leak info from alloc_ucontext
IB/cxgb3: fix misspelling in header guard
...
Linus Torvalds [Fri, 27 Jan 2017 20:25:26 +0000 (12:25 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Another two bug fixes:
- ptrace partial write information leak
- a guest page hinting regression introduced with v4.6"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/mm: Fix cmma unused transfer from pgste into pte
s390/ptrace: Preserve previous registers for short regset write
Linus Torvalds [Fri, 27 Jan 2017 20:17:07 +0000 (12:17 -0800)]
Merge branch 'stable/for-linus-4.10' of git://git./linux/kernel/git/konrad/swiotlb
Pull swiotlb fix from Konrad Rzeszutek Wilk:
"An ARM fix in the Xen SWIOTLB - mainly the translation of physical to
bus addresses was done just a tad too late"
* 'stable/for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
swiotlb-xen: update dev_addr after swapping pages
Linus Torvalds [Fri, 27 Jan 2017 20:10:58 +0000 (12:10 -0800)]
Merge tag 'vfio-v4.10-rc6' of git://github.com/awilliam/linux-vfio
Pull VFIO fix from Alex Williamson:
"mdev IOMMU groups are not yet compatible with the powerpc SPAPR IOMMU
backend, detect and fail group attach (Greg Kurz)"
* tag 'vfio-v4.10-rc6' of git://github.com/awilliam/linux-vfio:
vfio/spapr: fail tce_iommu_attach_group() when iommu_data is null
Jack Morgenstein [Sun, 15 Jan 2017 18:15:00 +0000 (20:15 +0200)]
RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
If IPV6 has not been enabled in the underlying kernel, we must avoid
calling IPV6 procedures in rdma_cm.ko.
This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements
surrounding any code which calls external IPV6 procedures.
In the instance fixed here, procedure cma_bind_addr() called
ipv6_addr_type() -- which resulted in calling external procedure
__ipv6_addr_type().
Fixes:
6c26a77124ff ("RDMA/cma: fix IPv6 address resolution")
Cc: <stable@vger.kernel.org> # v4.2+
Cc: Spencer Baugh <sbaugh@catern.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Jens Axboe [Fri, 27 Jan 2017 18:56:06 +0000 (11:56 -0700)]
Merge branch 'stable/for-jens-4.10' of git://git./linux/kernel/git/konrad/xen into for-linus
Konrad writes:
Please pull in your 'for-linus' branch two little fixes for Xen
block front:
One fix is for handling the XEN_PAGE_SIZE != PAGE_SIZE (4KB vs 64KB
on ARM for example) mishandling while the other is fixing
the accounting for the configuration changes.
Linus Torvalds [Fri, 27 Jan 2017 18:29:33 +0000 (10:29 -0800)]
Merge tag 'media/v4.10-2' of git://git./linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- fix a regression on tvp5150 causing failures at input selection and
image glitches
- CEC was moved out of staging for v4.10. Fix some bugs on it while not
too late
- fix a regression on pctv452e caused by VM stack changes
- fix suspend issued with smiapp
- fix a regression on cobalt driver
- fix some warnings and Kconfig issues with some random configs.
* tag 'media/v4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] s5k4ecgx: select CRC32 helper
[media] dvb: avoid warning in dvb_net
[media] v4l: tvp5150: Don't override output pinmuxing at stream on/off time
[media] v4l: tvp5150: Fix comment regarding output pin muxing
[media] v4l: tvp5150: Reset device at probe time, not in get/set format handlers
[media] pctv452e: move buffer to heap, no mutex
[media] media/cobalt: use pci_irq_allocate_vectors
[media] cec: fix race between configuring and unconfiguring
[media] cec: move cec_report_phys_addr into cec_config_thread_func
[media] cec: replace cec_report_features by cec_fill_msg_report_features
[media] cec: update log_addr[] before finishing configuration
[media] cec: CEC_MSG_GIVE_FEATURES should abort for CEC version < 2
[media] cec: when canceling a message, don't overwrite old status info
[media] cec: fix report_current_latency
[media] smiapp: Make suspend and resume functions __maybe_unused
[media] smiapp: Implement power-on and power-off sequences without runtime PM
Linus Torvalds [Fri, 27 Jan 2017 18:25:31 +0000 (10:25 -0800)]
Merge tag 'mmc-v4.10-rc5' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC fix from Ulf Hansson:
"MMC host: fix runtime PM resume path in dw_mmc"
* tag 'mmc-v4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: dw_mmc: force setup bus if active slots exist
Linus Torvalds [Fri, 27 Jan 2017 18:22:00 +0000 (10:22 -0800)]
Merge branch 'for-rc' of git://git./linux/kernel/git/rzhang/linux
Pull thermal management fix from Zhang Rui:
"A single revert from a recently introduced problem.
Specifics:
Commit
7611fb68062f ("thermal: thermal_hwmon: Convert to
hwmon_device_register_with_info()"), which was introduced in 4.10-rc5,
uses new hwmon API. But this breaks some soc thermal driver because
the new hwmon API has a strict rule for the hwmon device name. Revert
the offending commit as a quick solution for 4.10"
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
Revert "thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()"
Brian Foster [Thu, 26 Jan 2017 21:18:09 +0000 (13:18 -0800)]
xfs: prevent quotacheck from overloading inode lru
Quotacheck runs at mount time in situations where quota accounting must
be recalculated. In doing so, it uses bulkstat to visit every inode in
the filesystem. Historically, every inode processed during quotacheck
was released and immediately tagged for reclaim because quotacheck runs
before the superblock is marked active by the VFS. In other words,
the final iput() lead to an immediate ->destroy_inode() call, which
allowed the XFS background reclaim worker to start reclaiming inodes.
Commit
17c12bcd3 ("xfs: when replaying bmap operations, don't let
unlinked inodes get reaped") marks the XFS superblock active sooner as
part of the mount process to support caching inodes processed during log
recovery. This occurs before quotacheck and thus means all inodes
processed by quotacheck are inserted to the LRU on release. The
s_umount lock is held until the mount has completed and thus prevents
the shrinkers from operating on the sb. This means that quotacheck can
excessively populate the inode LRU and lead to OOM conditions on systems
without sufficient RAM.
Update the quotacheck bulkstat handler to set XFS_IGET_DONTCACHE on
inodes processed by quotacheck. This causes ->drop_inode() to return 1
and in turn causes iput_final() to evict the inode. This preserves the
original quotacheck behavior and prevents it from overloading the LRU
and running out of memory.
CC: stable@vger.kernel.org # v4.9
Reported-by: Martin Svec <martin.svec@zoner.cz>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Arnd Bergmann [Fri, 27 Jan 2017 12:32:14 +0000 (13:32 +0100)]
ISDN: eicon: silence misleading array-bounds warning
With some gcc versions, we get a warning about the eicon driver,
and that currently shows up as the only remaining warning in one
of the build bots:
In file included from ../drivers/isdn/hardware/eicon/message.c:30:0:
eicon/message.c: In function 'mixer_notify_update':
eicon/platform.h:333:18: warning: array subscript is above array bounds [-Warray-bounds]
The code is easily changed to open-code the unusual PUT_WORD() line
causing this to avoid the warning.
Cc: stable@vger.kernel.org
Link: http://arm-soc.lixom.net/buildlogs/stable-rc/v4.4.45/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Nyekjaer [Fri, 27 Jan 2017 07:46:23 +0000 (08:46 +0100)]
net: phy: micrel: add support for KSZ8795
This is adds support for the PHYs in the KSZ8795 5port managed switch.
It will allow to detect the link between the switch and the soc
and uses the same read_status functions as the KSZ8873MLL switch.
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 27 Jan 2017 15:39:10 +0000 (10:39 -0500)]
Merge branch 'gtp-fixes'
Andreas Schultz says:
====================
various gtp fixes
I'm sorry for the compile error mess up in the last version.
It's no excuse for not test compiling, but the hunks got lost in
a rebase.
This is the part of the previous "simple gtp improvements" series
that Pablo indicated should go into net.
The addition of the module alias fixes genl family autoloading,
clearing the DF bit fixes a protocol violation in regard to the
specification and the netns comparison fixes a corner case of
cross netns recv.
v2->v3: fix compiler error introduced in rebase
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Schultz [Fri, 27 Jan 2017 09:40:58 +0000 (10:40 +0100)]
gtp: fix cross netns recv on gtp socket
The use of the passed through netlink src_net to check for a
cross netns operation was wrong. Using the GTP socket and the
GTP netdevice is always correct (even if the netdev has been
moved to new netns after link creation).
Remove the now obsolete net field from gtp_dev.
Signed-off-by: Andreas Schultz <aschultz@tpip.net>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Schultz [Fri, 27 Jan 2017 09:40:57 +0000 (10:40 +0100)]
gtp: clear DF bit on GTP packet tx
3GPP TS 29.281 and 3GPP TS 29.060 imply that GTP-U packets should be
sent with the DF bit cleared. For example 3GPP TS 29.060, Release 8,
Section 13.2.2:
> Backbone router: Any router in the backbone may fragment the GTP
> packet if needed, according to IPv4.
Signed-off-by: Andreas Schultz <aschultz@tpip.net>
Acked-by: Harald Welte <laforge@netfilter.org>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Schultz [Fri, 27 Jan 2017 09:40:56 +0000 (10:40 +0100)]
gtp: add genl family modules alias
Auto-load the module when userspace asks for the gtp netlink
family.
Signed-off-by: Andreas Schultz <aschultz@tpip.net>
Acked-by: Harald Welte <laforge@netfilter.org>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira [Thu, 26 Jan 2017 21:56:21 +0000 (22:56 +0100)]
tcp: don't annotate mark on control socket from tcp_v6_send_response()
Unlike ipv4, this control socket is shared by all cpus so we cannot use
it as scratchpad area to annotate the mark that we pass to ip6_xmit().
Add a new parameter to ip6_xmit() to indicate the mark. The SCTP socket
family caches the flowi6 structure in the sctp_transport structure, so
we cannot use to carry the mark unless we later on reset it back, which
I discarded since it looks ugly to me.
Fixes:
bf99b4ded5f8 ("tcp: fix mark propagation with fwmark_reflect enabled")
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 27 Jan 2017 02:04:56 +0000 (18:04 -0800)]
Merge tag 'drm-fixes-for-v4.10-rc6-part-two' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"This is the main request for rc6, since really the one earlier was the
rc5 one :-)
The main thing are the nouveau specific race fixes for the connector
locking bug we fixed in -next and reverted here as it has quite large
prereqs. These two fixes should solve the problem at that level and we
can fix it properly in 4.11
Otherwise i915 has a bunch of changes, one ABI change for GVT related
stuff, some VC4 leak fixes, one core fence fix and some AMD changes,
oh and one ast hang avoidance fix.
Hoping it calms down around now"
* tag 'drm-fixes-for-v4.10-rc6-part-two' of git://people.freedesktop.org/~airlied/linux: (25 commits)
drm/nouveau: Handle fbcon suspend/resume in seperate worker
drm/nouveau: Don't enabling polling twice on runtime resume
drm/ast: Fixed system hanged if disable P2A
Revert "drm/radeon: always apply pci shutdown callbacks"
drm/i915: reinstate call to trace_i915_vma_bind
drm/i915: Move atomic state free from out of fence release
drm/i915: Check for NULL atomic state in intel_crtc_disable_noatomic()
drm/i915: Fix calculation of rotated x and y offsets for planar formats
drm/i915: Don't init hpd polling for vlv and chv from runtime_suspend()
drm/i915: Don't leak edid in intel_crt_detect_ddc()
drm/i915: Release temporary load-detect state upon switching
drm/i915: prevent crash with .disable_display parameter
drm/i915: Avoid drm_atomic_state_put(NULL) in intel_display_resume
MAINTAINERS: update new mail list for intel gvt driver
drm/i915/gvt: Fix kmem_cache_create() name
drm/i915/gvt/kvmgt: mdev ABI is available_instances, not available_instance
drm/amdgpu: fix unload driver issue for virtual display
drm/amdgpu: check ring being ready before using
drm/vc4: Return -EINVAL on the overflow checks failing.
drm/vc4: Fix an integer overflow in temporary allocation layout.
...
Dave Airlie [Fri, 27 Jan 2017 01:29:44 +0000 (11:29 +1000)]
Merge tag 'drm-intel-fixes-2017-01-26' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes
More fixes than I'd like at this stage, but I think the holidays and
conferences have delayed finding and fixing the stuff a bit. Almost all
of them have Fixes: tags, so it's not just random fixes, we can point
fingers at the commits that broke stuff.
There's an ABI fix to GVT from Alex, before we go on an release a kernel
with the wrong attribute name.
* tag 'drm-intel-fixes-2017-01-26' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915: reinstate call to trace_i915_vma_bind
drm/i915: Move atomic state free from out of fence release
drm/i915: Check for NULL atomic state in intel_crtc_disable_noatomic()
drm/i915: Fix calculation of rotated x and y offsets for planar formats
drm/i915: Don't init hpd polling for vlv and chv from runtime_suspend()
drm/i915: Don't leak edid in intel_crt_detect_ddc()
drm/i915: Release temporary load-detect state upon switching
drm/i915: prevent crash with .disable_display parameter
drm/i915: Avoid drm_atomic_state_put(NULL) in intel_display_resume
MAINTAINERS: update new mail list for intel gvt driver
drm/i915/gvt: Fix kmem_cache_create() name
drm/i915/gvt/kvmgt: mdev ABI is available_instances, not available_instance
drm/i915/gvt: Fix relocation of shadow bb
drm/i915/gvt: Enable the shadow batch buffer
Linus Torvalds [Fri, 27 Jan 2017 01:27:00 +0000 (17:27 -0800)]
Merge tag 'acpi-4.10-rc6' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix two regressions introduced recently, one by reverting the
problematic commit and one by fixing up locking in the ACPICA core.
Specifics:
- Revert a recent change that added an ACPI video blacklist entry for
HP Pavilion dv6 as it turned to introduce backlight handling
regressions on some systems (Hans de Goede).
- Fix locking in the ACPICA core to avoid deadlocks related to table
loading that were exposed by a recent change in that area (Lv
Zheng)"
* tag 'acpi-4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6"
ACPICA: Tables: Fix hidden logic related to acpi_tb_install_standard_table()
Linus Torvalds [Fri, 27 Jan 2017 01:14:17 +0000 (17:14 -0800)]
Merge tag 'pm-4.10-rc6' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two regressions introduced recently, one by reverting the
problematic commit and one by fixing up the behavior in an overlooked
case.
Specifics:
- Revert the recent change that caused suspend-to-idle to be used as
the default suspend method on systems where it is indicated to be
efficient by the ACPI tables, as that turned out to be premature
and introduced suspend regressions on some systems with missing
power management support in device drivers (Rafael Wysocki).
- Fix up the intel_pstate driver to take changes of the global limits
via sysfs correctly when the performance policy is used which has
been broken by a recent change in it (Srinivas Pandruvada)"
* tag 'pm-4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Fix sysfs limits enforcement for performance policy
Revert "PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag"
Lyude Paul [Thu, 12 Jan 2017 02:25:24 +0000 (21:25 -0500)]
drm/nouveau: Handle fbcon suspend/resume in seperate worker
Resuming from RPM can happen while already holding
dev->mode_config.mutex. This means we can't actually handle fbcon in
any RPM resume workers, since restoring fbcon requires grabbing
dev->mode_config.mutex again. So move the fbcon suspend/resume code into
it's own worker, and rely on that instead to avoid deadlocking.
This fixes more deadlocks for runtime suspending the GPU on the ThinkPad
W541. Reproduction recipe:
- Get a machine with both optimus and a nvidia card with connectors
attached to it
- Wait for the nvidia GPU to suspend
- Attempt to manually reprobe any of the connectors on the nvidia GPU
using sysfs
- *deadlock*
[airlied: use READ_ONCE to address Hans's comment]
Signed-off-by: Lyude <lyude@redhat.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Kilian Singer <kilian.singer@quantumtechnology.info>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: David Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Lyude Paul [Thu, 12 Jan 2017 02:25:23 +0000 (21:25 -0500)]
drm/nouveau: Don't enabling polling twice on runtime resume
As it turns out, on cards that actually have CRTCs on them we're already
calling drm_kms_helper_poll_enable(drm_dev) from
nouveau_display_resume() before we call it in
nouveau_pmops_runtime_resume(). This leads us to accidentally trying to
enable polling twice, which results in a potential deadlock between the
RPM locks and drm_dev->mode_config.mutex if we end up trying to enable
polling the second time while output_poll_execute is running and holding
the mode_config lock. As such, make sure we only enable polling in
nouveau_pmops_runtime_resume() if we need to.
This fixes hangs observed on the ThinkPad W541
Signed-off-by: Lyude <lyude@redhat.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Kilian Singer <kilian.singer@quantumtechnology.info>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: David Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Y.C. Chen [Thu, 26 Jan 2017 01:45:40 +0000 (09:45 +0800)]
drm/ast: Fixed system hanged if disable P2A
The original ast driver will access some BMC configuration through P2A bridge
that can be disabled since AST2300 and after.
It will cause system hanged if P2A bridge is disabled.
Here is the update to fix it.
Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 27 Jan 2017 00:33:39 +0000 (10:33 +1000)]
Merge tag 'drm-vc4-fixes-2017-01-23' of https://github.com/anholt/linux into drm-fixes
This pull request brings in a few little error checking fixes and one
slow memory leak fix.
* tag 'drm-vc4-fixes-2017-01-23' of https://github.com/anholt/linux:
drm/vc4: Return -EINVAL on the overflow checks failing.
drm/vc4: Fix an integer overflow in temporary allocation layout.
drm/vc4: fix a bounds check
drm/vc4: Fix memory leak of the CRTC state.
Dave Airlie [Fri, 27 Jan 2017 00:17:43 +0000 (10:17 +1000)]
Merge branch 'drm-fixes-4.10' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Just a few small fixes.
* 'drm-fixes-4.10' of git://people.freedesktop.org/~agd5f/linux:
Revert "drm/radeon: always apply pci shutdown callbacks"
drm/amdgpu: fix unload driver issue for virtual display
drm/amdgpu: check ring being ready before using
Dave Airlie [Fri, 27 Jan 2017 00:16:56 +0000 (10:16 +1000)]
Merge tag 'drm-misc-fixes-2017-01-23' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes
Single fence fix.
* tag 'drm-misc-fixes-2017-01-23' of git://anongit.freedesktop.org/git/drm-misc:
drm/fence: fix memory overwrite when setting out_fence fd
Omar Sandoval [Thu, 26 Jan 2017 01:06:40 +0000 (17:06 -0800)]
Btrfs: remove ->{get, set}_acl() from btrfs_dir_ro_inode_operations
Subvolume directory inodes can't have ACLs.
Cc: <stable@vger.kernel.org> # 4.9.x
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Omar Sandoval [Thu, 26 Jan 2017 01:06:39 +0000 (17:06 -0800)]
Btrfs: disable xattr operations on subvolume directories
When you snapshot a subvolume containing a subvolume, you get a
placeholder directory where the subvolume would be. These directory
inodes have ->i_ops set to btrfs_dir_ro_inode_operations. Previously,
these i_ops didn't include the xattr operation callbacks. The conversion
to xattr_handlers missed this case, leading to bogus attempts to set
xattrs on these inodes. This manifested itself as failures when running
delayed inodes.
To fix this, clear IOP_XATTR in ->i_opflags on these inodes.
Fixes:
6c6ef9f26e59 ("xattr: Stop calling {get,set,remove}xattr inode operations")
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Reported-by: Chris Murphy <lists@colorremedies.com>
Tested-by: Chris Murphy <lists@colorremedies.com>
Cc: <stable@vger.kernel.org> # 4.9.x
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Omar Sandoval [Thu, 26 Jan 2017 01:06:38 +0000 (17:06 -0800)]
Btrfs: remove old tree_root case in btrfs_read_locked_inode()
As Jeff explained in
c2951f32d36c ("btrfs: remove old tree_root dirent
processing in btrfs_real_readdir()"), supporting this old format is no
longer necessary since the Btrfs magic number has been updated since we
changed to the current format. There are other places where we still
handle this old format, but since this is part of a fix that is going to
stable, I'm only removing this one for now.
Cc: <stable@vger.kernel.org> # 4.9.x
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Kazuya Mizuguchi [Thu, 26 Jan 2017 13:29:27 +0000 (14:29 +0100)]
ravb: unmap descriptors when freeing rings
"swiotlb buffer is full" errors occur after repeated initialisation of a
device - f.e. suspend/resume or ip link set up/down. This is because memory
mapped using dma_map_single() in ravb_ring_format() and ravb_start_xmit()
is not released. Resolve this problem by unmapping descriptors when
freeing rings.
Fixes:
c156633f1353 ("Renesas Ethernet AVB driver proper")
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[simon: reworked]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rafael J. Wysocki [Thu, 26 Jan 2017 23:39:02 +0000 (00:39 +0100)]
Merge branches 'acpica' and 'acpi-video'
* acpica:
ACPICA: Tables: Fix hidden logic related to acpi_tb_install_standard_table()
* acpi-video:
Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6"
Rafael J. Wysocki [Thu, 26 Jan 2017 23:08:59 +0000 (00:08 +0100)]
Merge branches 'pm-sleep' and 'pm-cpufreq'
* pm-sleep:
Revert "PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag"
* pm-cpufreq:
cpufreq: intel_pstate: Fix sysfs limits enforcement for performance policy
David S. Miller [Thu, 26 Jan 2017 17:54:50 +0000 (12:54 -0500)]
Merge git://git./pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains a large batch with Netfilter fixes for
your net tree, they are:
1) Two patches to solve conntrack garbage collector cpu hogging, one to
remove GC_MAX_EVICTS and another to look at the ratio (scanned entries
vs. evicted entries) to make a decision on whether to reduce or not
the scanning interval. From Florian Westphal.
2) Two patches to fix incorrect set element counting if NLM_F_EXCL is
is not set. Moreover, don't decrenent set->nelems from abort patch
if -ENFILE which leaks a spare slot in the set. This includes a
patch to deconstify the set walk callback to update set->ndeact.
3) Two fixes for the fwmark_reflect sysctl feature: Propagate mark to
reply packets both from nf_reject and local stack, from Pau Espin Pedrol.
4) Fix incorrect handling of loopback traffic in rpfilter and nf_tables
fib expression, from Liping Zhang.
5) Fix oops on stateful objects netlink dump, when no filter is specified.
Also from Liping Zhang.
6) Fix a build error if proc is not available in ipt_CLUSTERIP, related
to fix that was applied in the previous batch for net. From Arnd Bergmann.
7) Fix lack of string validation in table, chain, set and stateful
object names in nf_tables, from Liping Zhang. Moreover, restrict
maximum log prefix length to 127 bytes, otherwise explicitly bail
out.
8) Two patches to fix spelling and typos in nf_tables uapi header file
and Kconfig, patches from Alexander Alemayhu and William Breathitt Gray.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Darrick J. Wong [Thu, 26 Jan 2017 17:50:30 +0000 (09:50 -0800)]
xfs: fix bmv_count confusion w/ shared extents
In a bmapx call, bmv_count is the total size of the array, including the
zeroth element that userspace uses to supply the search key. The output
array starts at offset 1 so that we can set up the user for the next
invocation. Since we now can split an extent into multiple bmap records
due to shared/unshared status, we have to be careful that we don't
overflow the output array.
In the original patch
f86f403794b ("xfs: teach get_bmapx about shared
extents and the CoW fork") I used cur_ext (the output index) to check
for overflows, albeit with an off-by-one error. Since nexleft no longer
describes the number of unfilled slots in the output, we can rip all
that out and use cur_ext for the overflow check directly.
Failure to do this causes heap corruption in bmapx callers such as
xfs_io and xfs_scrub. xfs/328 can reproduce this problem.
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Eric Dumazet [Thu, 26 Jan 2017 02:20:55 +0000 (18:20 -0800)]
sysctl: fix proc_doulongvec_ms_jiffies_minmax()
We perform the conversion between kernel jiffies and ms only when
exporting kernel value to user space.
We need to do the opposite operation when value is written by user.
Only matters when HZ != 1000
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 26 Jan 2017 17:08:49 +0000 (09:08 -0800)]
Merge tag 'pinctrl-v4.10-3' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"A bunch of pin control fixes for v4.10 that didn't get sent off until
now, sorry for the delay.
It's only driver fixes:
- A bunch of fixes to the Intel drivers: broxton, baytrail. Bugs
related to register offsets, IRQ, debounce functionality.
- Fix a conflict amongst UART settings on the meson.
- Fix the ethernet setting on the Uniphier.
- A compilation warning squelched"
* tag 'pinctrl-v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: uniphier: fix Ethernet (RMII) pin-mux setting for LD20
pinctrl: meson: fix uart_ao_b for GXBB and GXL/GXM
pinctrl: amd: avoid maybe-uninitalized warning
pinctrl: baytrail: Do not add all GPIOs to IRQ domain
pinctrl: baytrail: Rectify debounce support
pinctrl: intel: Set pin direction properly
pinctrl: broxton: Use correct PADCFGLOCK offset
Bart Van Assche [Wed, 25 Jan 2017 21:43:56 +0000 (13:43 -0800)]
Revert "sd: remove __data_len hack for WRITE SAME"
This patch reverts commit
f80de881d8df and avoids that sending a
WRITE SAME command to the iSCSI initiator triggers the following:
BUG: unable to handle kernel NULL pointer dereference at
0000000000000014
TARGET_CORE[iSCSI]: Expected Transfer Length: 260096 does not match SCSI CDB Length: 512 for SAM Opcode: 0x41
IP: iscsi_tcp_segment_done+0x20b/0x310 [libiscsi_tcp]
Oops: 0000 [#1] SMP
Modules linked in: target_core_user uio target_core_iblock target_core_file iscsi_target_mod target_core_mod netconsole configfs crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 crypto_simd cryptd glue_helper virtio_console virtio_rng virtio_balloon serio_raw i2c_piix4 acpi_cpufreq button iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ext4 jbd2 mbcache virtio_blk virtio_net psmouse floppy drm_kms_helper syscopyarea
sysfillrect sysimgblt fb_sys_fops ttm drm virtio_pci
CPU: 2 PID: 5 Comm: kworker/u8:0 Not tainted 4.10.0-rc5-debug+ #3
Workqueue: iscsi_q_0 iscsi_xmitworker [libiscsi]
RIP: 0010:iscsi_tcp_segment_done+0x20b/0x310 [libiscsi_tcp]
Call Trace:
iscsi_sw_tcp_xmit_segment+0x84/0x120 [iscsi_tcp]
iscsi_sw_tcp_pdu_xmit+0x51/0x180 [iscsi_tcp]
iscsi_tcp_task_xmit+0xb3/0x290 [libiscsi_tcp]
iscsi_xmit_task+0x4e/0xc0 [libiscsi]
iscsi_xmitworker+0x243/0x330 [libiscsi]
process_one_work+0x1d8/0x4b0
worker_thread+0x49/0x4a0
kthread+0x102/0x140
Fixes:
f80de881d8df ("sd: remove __data_len hack for WRITE SAME")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Jens Axboe <axboe@fb.com>
Cc: Lee Duncan <lduncan@suse.com>
Cc: Chris Leech <cleech@redhat.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Jens Axboe [Thu, 26 Jan 2017 16:56:15 +0000 (09:56 -0700)]
Merge branch 'nvme-4.10-fixes' of git://git.infradead.org/nvme into for-linus
Pull nvme target fixes from Sagi:
Given that its -rc6, I removed anything that is not
bug fix.
- nvmet-fc discard fix from Christoph
- queue disconnect fix from James
- nvmet-rdma dma sync fix from Parav
- Some more nvmet fixes
Linus Torvalds [Thu, 26 Jan 2017 16:55:33 +0000 (08:55 -0800)]
Merge tag 'drm-fixes-for-v4.10-rc6-revert-one' of git://people.freedesktop.org/~airlied/linux
Pull drm revert from Dave Airlie:
"Revert one patch missing some prereqs.
One of the connector fixes was missing some prereqs, we have an
alternate driver fix that should work that I'll send tomorrow.
Today is a holiday here so quickly smashing this out"
Daniel Vetter explains:
"I pushed a locking change to fix a nouveau rpm issue to -fixes that
needed the connector_list rework. And that's only in -next, but I
missed that. Dave has the revert in a pull, and he'll follow-up with
the hack nouveau patch for 4.10, and then we'll reapply the proper fix
again for -next and revert the hacks. A bit a mess, but should be
sorted soon"
* tag 'drm-fixes-for-v4.10-rc6-revert-one' of git://people.freedesktop.org/~airlied/linux:
Revert "drm/probe-helpers: Drop locking from poll_enable"
Christoph Hellwig [Thu, 19 Jan 2017 15:55:57 +0000 (16:55 +0100)]
nvme-fc: use blk_rq_nr_phys_segments
Without this deallocate won't work properly due to the mismatch
of the bio/request size and the actual payload size.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Parav Pandit [Thu, 19 Jan 2017 15:55:08 +0000 (09:55 -0600)]
nvmet-rdma: Fix missing dma sync to nvme data structures
This patch performs dma sync operations on nvme_command
and nvme_completion.
nvme_command is synced
(a) on receiving of the recv queue completion for cpu access.
(b) before posting recv wqe back to rdma adapter for device access.
nvme_completion is synced
(a) on receiving of the recv queue completion of associated
nvme_command for cpu access.
(b) before posting send wqe to rdma adapter for device access.
This patch is generated for git://git.infradead.org/nvme-fabrics.git
Branch: nvmf-4.10
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Sagi Grimberg [Sun, 1 Jan 2017 11:18:26 +0000 (13:18 +0200)]
nvmet: Call fatal_error from keep-alive timout expiration
We only need to call delete_ctrl once, so given that both
keep-alive timeout and any other fatal error can trigger it,
just make sure we only call delete_ctrl once.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Sagi Grimberg [Sun, 1 Jan 2017 11:41:56 +0000 (13:41 +0200)]
nvmet: cancel fatal error and flush async work before free controller
Make sure they are not running and we can free the controller
safely.
Signed-off-by: Roy Shterman <roys@lightbitslabs.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Sagi Grimberg [Sun, 27 Nov 2016 20:29:17 +0000 (22:29 +0200)]
nvmet: delete controllers deletion upon subsystem release
No reason for them to be kept around if we are
deleting the subsystem, so instead of passively
wait for the host to disconnect, actively delete
the controllers.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
James Smart [Sat, 24 Dec 2016 17:46:43 +0000 (09:46 -0800)]
nvmet_fc: correct logic in disconnect queue LS handling
Correct logic in disconnect queue LS handling.
Rework so that queue searching and error reporting is above the
section to send back a ls rjt
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Darrick J. Wong [Thu, 26 Jan 2017 04:24:57 +0000 (20:24 -0800)]
xfs: clear _XBF_PAGES from buffers when readahead page
If we try to allocate memory pages to back an xfs_buf that we're trying
to read, it's possible that we'll be so short on memory that the page
allocation fails. For a blocking read we'll just wait, but for
readahead we simply dump all the pages we've collected so far.
Unfortunately, after dumping the pages we neglect to clear the
_XBF_PAGES state, which means that the subsequent call to xfs_buf_free
thinks that b_pages still points to pages we own. It then double-frees
the b_pages pages.
This results in screaming about negative page refcounts from the memory
manager, which xfs oughtn't be triggering. To reproduce this case,
mount a filesystem where the size of the inodes far outweighs the
availalble memory (a ~500M inode filesystem on a VM with 300MB memory
did the trick here) and run bulkstat in parallel with other memory
eating processes to put a huge load on the system. The "check summary"
phase of xfs_scrub also works for this purpose.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
David S. Miller [Thu, 26 Jan 2017 04:11:13 +0000 (23:11 -0500)]
Merge tag 'batadv-net-for-davem-
20170125' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
Here is a batman-adv bugfix:
- fix reference count handling on fragmentation error, by Sven Eckelmann
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Wed, 25 Jan 2017 22:56:36 +0000 (14:56 -0800)]
virtio_net: reject XDP programs using header adjustment
commit
17bedab27231 ("bpf: xdp: Allow head adjustment in XDP prog")
added a new XDP helper to prepend and remove data from a frame.
Make virtio_net reject programs making use of this helper until
proper support is added.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Thu, 26 Jan 2017 02:22:48 +0000 (18:22 -0800)]
virtio_net: use dev_kfree_skb for small buffer XDP receive
In the small buffer case during driver unload we currently use
put_page instead of dev_kfree_skb. Resolve this by adding a check
for virtnet mode when checking XDP queue type. Also name the
function so that the code reads correctly to match the additional
check.
Fixes:
bb91accf2733 ("virtio-net: XDP support for small buffers")
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 26 Jan 2017 03:47:31 +0000 (22:47 -0500)]
Merge branch 'r8152-napi-fixes'
Hayes Wang says:
====================
r8152: fix scheduling napi
v3:
simply the argument for patch #3. Replace &tp->napi with napi.
v2:
Add smp_mb__after_atomic() for patch #1.
v1:
Scheduling the napi during the following periods would let it be ignored.
And the events wouldn't be handled until next napi_schedule() is called.
1. after napi_disable and before napi_enable().
2. after all actions of napi function is completed and before calling
napi_complete().
If no next napi_schedule() is called, tx or rx would stop working.
In order to avoid these situations, the followings solutions are applied.
1. prevent start_xmit() from calling napi_schedule() during runtime suspend
or after napi_disable().
2. re-schedule the napi for tx if it is necessary.
3. check if any rx is finished or not after napi_enable().
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Thu, 26 Jan 2017 01:38:34 +0000 (09:38 +0800)]
r8152: check rx after napi is enabled
Schedule the napi after napi_enable() for rx, if it is necessary.
If the rx is completed when napi is disabled, the sheduling of napi
would be lost. Then, no one handles the rx packet until next napi
is scheduled.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Thu, 26 Jan 2017 01:38:33 +0000 (09:38 +0800)]
r8152: re-schedule napi for tx
Re-schedule napi after napi_complete() for tx, if it is necessay.
In r8152_poll(), if the tx is completed after tx_bottom() and before
napi_complete(), the scheduling of napi would be lost. Then, no
one handles the next tx until the next napi_schedule() is called.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Thu, 26 Jan 2017 01:38:32 +0000 (09:38 +0800)]
r8152: avoid start_xmit to schedule napi when napi is disabled
Stop the tx when the napi is disabled to prevent napi_schedule() is
called.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Thu, 26 Jan 2017 01:38:31 +0000 (09:38 +0800)]
r8152: avoid start_xmit to call napi_schedule during autosuspend
Adjust the setting of the flag of SELECTIVE_SUSPEND to prevent start_xmit()
from calling napi_schedule() directly during runtime suspend.
After calling napi_disable() or clearing the flag of WORK_ENABLE,
scheduling the napi is useless.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Deucher [Wed, 25 Jan 2017 17:00:29 +0000 (12:00 -0500)]
Revert "drm/radeon: always apply pci shutdown callbacks"
This seems to break reboot on some evergreen systems.
bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=99524
https://bugzilla.kernel.org/show_bug.cgi?id=192271
This reverts commit
a481daa88fd4d6b54f25348972bba10b5f6a84d0.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Dave Airlie [Wed, 25 Jan 2017 20:44:03 +0000 (06:44 +1000)]
Revert "drm/probe-helpers: Drop locking from poll_enable"
This reverts commit
3846fd9b86001bea171943cc3bb9222cb6da6b42.
There were some precursor commits missing for this around connector
locking, we should probably merge Lyude's nouveau avoid the problem patch.
Florian Fainelli [Wed, 25 Jan 2017 17:10:41 +0000 (09:10 -0800)]
net: dsa: Bring back device detaching in dsa_slave_suspend()
Commit
448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid
lockdep splat") removed the netif_device_detach() call done in
dsa_slave_suspend() which is necessary, and paired with a corresponding
netif_device_attach(), bring it back.
Fixes:
448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid lockdep splat")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 25 Jan 2017 19:40:25 +0000 (14:40 -0500)]
Merge branch 'phy-truncated-led-names'
Geert Uytterhoeven says:
====================
net: phy: leds: Fix truncated LED trigger names and crashes
I started seeing crashes during s2ram and poweroff on all my ARM boards,
like:
Unable to handle kernel NULL pointer dereference at virtual address
00000000
...
[<
c04116d4>] (__list_del_entry_valid) from [<
c05e8948>] (led_trigger_unregister+0x34/0xcc)
[<
c05e8948>] (led_trigger_unregister) from [<
c05336c4>] (phy_led_triggers_unregister+0x28/0x34)
[<
c05336c4>] (phy_led_triggers_unregister) from [<
c0531d44>] (phy_detach+0x30/0x74)
[<
c0531d44>] (phy_detach) from [<
c0538bdc>] (sh_eth_close+0x64/0x9c)
[<
c0538bdc>] (sh_eth_close) from [<
c04d4ce0>] (dpm_run_callback+0x48/0xc8)
or:
list_del corruption. prev->next should be
dede6540, but was
2e323931
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:52!
...
[<
c02f6d70>] (__list_del_entry_valid) from [<
c0425168>] (led_trigger_unregister+0x34/0xcc)
[<
c0425168>] (led_trigger_unregister) from [<
c03a05a0>] (phy_led_triggers_unregister+0x28/0x34)
[<
c03a05a0>] (phy_led_triggers_unregister) from [<
c039ec04>] (phy_detach+0x30/0x74)
[<
c039ec04>] (phy_detach) from [<
c03a4fc0>] (sh_eth_close+0x6c/0xa4)
[<
c03a4fc0>] (sh_eth_close) from [<
c0483234>] (__dev_close_many+0xac/0xd0)
As the only clue was a kernel message like
sh-eth
ee700000.ethernet eth0: No phy led trigger registered for speed(100)
I had to bisected this, leading to commit
4567d686f5c6d955 ("phy:
increase size of MII_BUS_ID_SIZE and bus_id"). Reverting that commit
fixed the issue.
More investigation revealed the crashes are due to the combination of
two things:
- Truncated LED trigger names, leading to duplicate names, and
registration failures,
- Bad error handling in case of registration failures.
Both are fixed by this patch series.
Changes compared to v1:
- Add Reviewed-by,
- New patch "net: phy: leds: Break dependency of phy.h on
phy_led_triggers.h",
- Drop moving the include of <linux/phy_led_triggers.h>, as
<linux/phy.h> no longer includes it,
- #include <linux/phy.h> from <linux/phy_led_triggers.h>.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Geert Uytterhoeven [Wed, 25 Jan 2017 10:39:50 +0000 (11:39 +0100)]
net: phy: leds: Fix truncated LED trigger names
Commit
4567d686f5c6d955 ("phy: increase size of MII_BUS_ID_SIZE and
bus_id") increased the size of MII bus IDs, but forgot to update the
private definition in <linux/phy_led_triggers.h>.
This may cause:
1. Truncation of LED trigger names,
2. Duplicate LED trigger names,
3. Failures registering LED triggers,
4. Crashes due to bad error handling in the LED trigger failure path.
To fix this, and prevent the definitions going out of sync again in the
future, let the PHY LED trigger code use the existing MII_BUS_ID_SIZE
definition.
Example:
- Before I had triggers "
ee700000.etherne:01:100Mbps" and
"
ee700000.etherne:01:10Mbps",
- After the increase of MII_BUS_ID_SIZE, both became
"
ee700000.ethernet-
ffffffff:01:" => FAIL,
- Now, the triggers are "
ee700000.ethernet-
ffffffff:01:100Mbps" and
"
ee700000.ethernet-
ffffffff:01:10Mbps", which are unique again.
Fixes:
4567d686f5c6d955 ("phy: increase size of MII_BUS_ID_SIZE and bus_id")
Fixes:
2e0bc452f4721520 ("net: phy: leds: add support for led triggers on phy link state change")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Geert Uytterhoeven [Wed, 25 Jan 2017 10:39:49 +0000 (11:39 +0100)]
net: phy: leds: Break dependency of phy.h on phy_led_triggers.h
<linux/phy.h> includes <linux/phy_led_triggers.h>, which is not really
needed. Drop the include from <linux/phy.h>, and add it to all users
that didn't include it explicitly.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Geert Uytterhoeven [Wed, 25 Jan 2017 10:39:48 +0000 (11:39 +0100)]
net: phy: leds: Clear phy_num_led_triggers on failure to avoid crash
phy_attach_direct() ignores errors returned by
phy_led_triggers_register(). I think that's OK, as LED triggers can be
considered a non-critical feature.
However, this causes problems later:
- phy_led_trigger_change_speed() will access the array
phy_device.phy_led_triggers, which has been freed in the error path
of phy_led_triggers_register(), which may lead to a crash.
- phy_led_triggers_unregister() will access the same array, leading to
crashes during s2ram or poweroff, like:
Unable to handle kernel NULL pointer dereference at virtual address
00000000
...
[<
c04116d4>] (__list_del_entry_valid) from [<
c05e8948>] (led_trigger_unregister+0x34/0xcc)
[<
c05e8948>] (led_trigger_unregister) from [<
c05336c4>] (phy_led_triggers_unregister+0x28/0x34)
[<
c05336c4>] (phy_led_triggers_unregister) from [<
c0531d44>] (phy_detach+0x30/0x74)
[<
c0531d44>] (phy_detach) from [<
c0538bdc>] (sh_eth_close+0x64/0x9c)
[<
c0538bdc>] (sh_eth_close) from [<
c04d4ce0>] (dpm_run_callback+0x48/0xc8)
or:
list_del corruption. prev->next should be
dede6540, but was
2e323931
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:52!
...
[<
c02f6d70>] (__list_del_entry_valid) from [<
c0425168>] (led_trigger_unregister+0x34/0xcc)
[<
c0425168>] (led_trigger_unregister) from [<
c03a05a0>] (phy_led_triggers_unregister+0x28/0x34)
[<
c03a05a0>] (phy_led_triggers_unregister) from [<
c039ec04>] (phy_detach+0x30/0x74)
[<
c039ec04>] (phy_detach) from [<
c03a4fc0>] (sh_eth_close+0x6c/0xa4)
[<
c03a4fc0>] (sh_eth_close) from [<
c0483234>] (__dev_close_many+0xac/0xd0)
To fix this, clear phy_device.phy_num_led_triggers in the error path of
phy_led_triggers_register() fails.
Note that the "No phy led trigger registered for speed" message will
still be printed on link speed changes, which is a good cue that
something went wrong with the LED triggers.
Fixes:
2e0bc452f4721520 ("net: phy: leds: add support for led triggers on phy link state change")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Crispin [Wed, 25 Jan 2017 08:20:55 +0000 (09:20 +0100)]
net-next: ethernet: mediatek: change the compatible string
When the binding was defined, I was not aware that mt2701 was an earlier
version of the SoC. For sake of consistency, the ethernet driver should
use mt2701 inside the compat string as this is the earliest SoC with the
ethernet core.
The ethernet driver is currently of no real use until we finish and
upstream the DSA driver. There are no users of this binding yet. It should
be safe to fix this now before it is too late and we need to provide
backward compatibility for the mt7623-eth compat string.
Reported-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Crispin [Wed, 25 Jan 2017 08:20:54 +0000 (09:20 +0100)]
Documentation: devicetree: change the mediatek ethernet compatible string
When the binding was defined, I was not aware that mt2701 was an earlier
version of the SoC. For sake of consistency, the ethernet driver should
use mt2701 inside the compat string as this is the earliest SoC with the
ethernet core.
The ethernet driver is currently of no real use until we finish and
upstream the DSA driver. There are no users of this binding yet. It should
be safe to fix this now before it is too late and we need to provide
backward compatibility for the mt7623-eth compat string.
Reported-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: John Crispin <john@phrozen.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 25 Jan 2017 18:27:14 +0000 (13:27 -0500)]
Merge branch 'bnxt_en-rtnl-fixes'
Michael Chan says:
====================
bnxt_en: Fix RTNL lock usage in bnxt_sp_task().
There are 2 function calls from bnxt_sp_task() that have buggy RTNL
usage. These 2 functions take RTNL lock under some conditions, but
some callers (such as open, ethtool) have already taken RTNL. These
3 patches fix the issue by making it clear that callers must take
RTNL. If the caller is bnxt_sp_task() which does not automatically
take RTNL, we add a common scheme for bnxt_sp_task() to call these
functions properly under RTNL.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Wed, 25 Jan 2017 07:55:09 +0000 (02:55 -0500)]
bnxt_en: Fix RTNL lock usage on bnxt_get_port_module_status().
bnxt_get_port_module_status() calls bnxt_update_link() which expects
RTNL to be held. In bnxt_sp_task() that does not hold RTNL, we need to
call it with a prior call to bnxt_rtnl_lock_sp() and the call needs to
be moved to the end of bnxt_sp_task().
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Wed, 25 Jan 2017 07:55:08 +0000 (02:55 -0500)]
bnxt_en: Fix RTNL lock usage on bnxt_update_link().
bnxt_update_link() is called from multiple code paths. Most callers,
such as open, ethtool, already hold RTNL. Only the caller bnxt_sp_task()
does not. So it is a bug to take RTNL inside bnxt_update_link().
Fix it by removing the RTNL inside bnxt_update_link(). The function
now expects the caller to always hold RTNL.
In bnxt_sp_task(), call bnxt_rtnl_lock_sp() before calling
bnxt_update_link(). We also need to move the call to the end of
bnxt_sp_task() since it will be clearing the BNXT_STATE_IN_SP_TASK bit.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Wed, 25 Jan 2017 07:55:07 +0000 (02:55 -0500)]
bnxt_en: Fix bnxt_reset() in the slow path task.
In bnxt_sp_task(), we set a bit BNXT_STATE_IN_SP_TASK so that bnxt_close()
will synchronize and wait for bnxt_sp_task() to finish. Some functions
in bnxt_sp_task() require us to clear BNXT_STATE_IN_SP_TASK and then
acquire rtnl_lock() to prevent race conditions.
There are some bugs related to this logic. This patch refactors the code
to have common bnxt_rtnl_lock_sp() and bnxt_rtnl_unlock_sp() to handle
the RTNL and the clearing/setting of the bit. Multiple functions will
need the same logic. We also need to move bnxt_reset() to the end of
bnxt_sp_task(). Functions that clear BNXT_STATE_IN_SP_TASK must be the
last functions to be called in bnxt_sp_task(). The common scheme will
handle the condition properly.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 25 Jan 2017 18:25:36 +0000 (10:25 -0800)]
Merge tag 'for_linus' of git://git./linux/kernel/git/mst/vhost
Pull virtio/vhost fixes from Michael Tsirkin:
- ARM DMA fixes
- vhost vsock bugfix
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vring: Force use of DMA API for ARM-based systems with legacy devices
virtio_mmio: Set DMA masks appropriately
vhost/vsock: handle vhost_vq_init_access() error
Jason Baron [Wed, 25 Jan 2017 02:49:41 +0000 (21:49 -0500)]
tcp: correct memory barrier usage in tcp_check_space()
sock_reset_flag() maps to __clear_bit() not the atomic version clear_bit().
Thus, we need smp_mb(), smp_mb__after_atomic() is not sufficient.
Fixes:
3c7151275c0c ("tcp: add memory barriers to write space paths")
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Jason Baron <jbaron@akamai.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Reported-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Tue, 24 Jan 2017 06:05:16 +0000 (14:05 +0800)]
sctp: sctp gso should set feature with NETIF_F_SG when calling skb_segment
Now sctp gso puts segments into skb's frag_list, then processes these
segments in skb_segment. But skb_segment handles them only when gs is
enabled, as it's in the same branch with skb's frags.
Although almost all the NICs support sg other than some old ones, but
since commit
1e16aa3ddf86 ("net: gso: use feature flag argument in all
protocol gso handlers"), features &= skb->dev->hw_enc_features, and
xfrm_output_gso call skb_segment with features = 0, which means sctp
gso would call skb_segment with sg = 0, and skb_segment would not work
as expected.
This patch is to fix it by setting features param with NETIF_F_SG when
calling skb_segment so that it can go the right branch to process the
skb's frag_list.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Tue, 24 Jan 2017 06:01:53 +0000 (14:01 +0800)]
sctp: sctp_addr_id2transport should verify the addr before looking up assoc
sctp_addr_id2transport is a function for sockopt to look up assoc by
address. As the address is from userspace, it can be a v4-mapped v6
address. But in sctp protocol stack, it always handles a v4-mapped
v6 address as a v4 address. So it's necessary to convert it to a v4
address before looking up assoc by address.
This patch is to fix it by calling sctp_verify_addr in which it can do
this conversion before calling sctp_endpoint_lookup_assoc, just like
what sctp_sendmsg and __sctp_connect do for the address from users.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Christoph Hellwig [Wed, 25 Jan 2017 16:59:43 +0000 (08:59 -0800)]
xfs: extsize hints are not unlikely in xfs_bmap_btalloc
With COW files they are the hotpath, just like for files with the
extent size hint attribute. We really shouldn't micro-manage anything
but failure cases with unlikely.
Additionally Arnd Bergmann recently reported that one of these two
unlikely annotations causes link failures together with an upcoming
kernel instrumentation patch, so let's get rid of it ASAP.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Brian Foster [Wed, 25 Jan 2017 15:53:43 +0000 (07:53 -0800)]
xfs: remove racy hasattr check from attr ops
xfs_attr_[get|remove]() have unlocked attribute fork checks to optimize
away a lock cycle in cases where the fork does not exist or is otherwise
empty. This check is not safe, however, because an attribute fork short
form to extent format conversion includes a transient state that causes
the xfs_inode_hasattr() check to fail. Specifically,
xfs_attr_shortform_to_leaf() creates an empty extent format attribute
fork and then adds the existing shortform attributes to it.
This means that lookup of an existing xattr can spuriously return
-ENOATTR when racing against a setxattr that causes the associated
format conversion. This was originally reproduced by an untar on a
particularly configured glusterfs volume, but can also be reproduced on
demand with properly crafted xattr requests.
The format conversion occurs under the exclusive ilock. xfs_attr_get()
and xfs_attr_remove() already have the proper locking and checks further
down in the functions to handle this situation correctly. Drop the
unlocked checks to avoid the spurious failure and rely on the existing
logic.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Christoph Hellwig [Wed, 25 Jan 2017 15:49:35 +0000 (07:49 -0800)]
xfs: use per-AG reservations for the finobt
Currently we try to rely on the global reserved block pool for block
allocations for the free inode btree, but I have customer reports
(fairly complex workload, need to find an easier reproducer) where that
is not enough as the AG where we free an inode that requires a new
finobt block is entirely full. This causes us to cancel a dirty
transaction and thus a file system shutdown.
I think the right way to guard against this is to treat the finot the same
way as the refcount btree and have a per-AG reservations for the possible
worst case size of it, and the patch below implements that.
Note that this could increase mount times with large finobt trees. In
an ideal world we would have added a field for the number of finobt
fields to the AGI, similar to what we did for the refcount blocks.
We should do add it next time we rev the AGI or AGF format by adding
new fields.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Christoph Hellwig [Wed, 25 Jan 2017 15:49:34 +0000 (07:49 -0800)]
xfs: only update mount/resv fields on success in __xfs_ag_resv_init
Try to reserve the blocks first and only then update the fields in
or hanging off the mount structure. This way we can call __xfs_ag_resv_init
again after a previous failure.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Hans de Goede [Sun, 22 Jan 2017 12:24:05 +0000 (13:24 +0100)]
Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6"
Revert commit
6276e53fa8c0 (ACPI / video: Add force_native quirk for
HP Pavilion dv6).
In the commit message for the quirk this revert removes I wrote:
"Note that there are quite a few HP Pavilion dv6 variants, some
woth ATI and some with NVIDIA hybrid gfx, both seem to need this
quirk to have working backlight control. There are also some versions
with only Intel integrated gfx, these may not need this quirk, but it
should not hurt there."
Unfortunately that seems wrong, I've already received 2 reports of
this commit causing regressions on some dv6 variants (at least one
of which actually has a nvidia GPU). So it seems that HP has made a
mess here by using the same model-name both in marketing and in the
DMI data for many different variants. Some of which need
acpi_backlight=native for functional backlight control (as the
quirk this commit reverts was doing), where as others are broken by
it. So lets get back to the old sitation so as to avoid regressing
on models which used to work without any kernel cmdline arguments
before.
Fixes:
6276e53fa8c0 (ACPI / video: Add force_native quirk for HP Pavilion dv6)
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>