Commit Graph

812202 Commits

Author SHA1 Message Date
Linus Torvalds
b0314565da virtio: fixes
A small fix for a uapi header, and a fix for VDPA for non-x86 guests.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes from Michael Tsirkin:
 "A small fix for a uapi header, and a fix for VDPA for non-x86 guests"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio: drop internal struct from UAPI
  virtio: support VIRTIO_F_ORDER_PLATFORM
2019-02-07 08:05:28 +00:00
Linus Torvalds
4879f11615 This has two fixes for uprobe code.
- Cut and paste fix to have uprobe printks say "uprobe" and not "kprobe"
 
  - Add terminating '\0' byte when copying of function arguments
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Merge tag 'trace-v5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "This has two fixes for uprobe code.

   - Cut and paste fix to have uprobe printks say "uprobe" and not
     "kprobe"

   - Add terminating '\0' byte when copying function arguments"

* tag 'trace-v5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing/uprobes: Fix output for multiple string arguments
  tracing: uprobes: Fix typo in pr_fmt string
2019-02-07 07:59:01 +00:00
Linus Torvalds
076a3f5537 fuse fixes for 5.0-rc6
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Merge tag 'fuse-fixes-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse fixes from Miklos Szeredi:
 "A fix for a CUSE regression introduced in v4.20, as well as fixes for
  a couple of old bugs"

* tag 'fuse-fixes-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: decrement NR_WRITEBACK_TEMP on the right page
  fuse: call pipe_buf_release() under pipe lock
  cuse: fix ioctl
  fuse: handle zero sized retrieve correctly
2019-02-07 07:52:08 +00:00
Linus Torvalds
b66bc77767 Pin control fixes for the v5.0 series:
- Mediatek Kconfig fix
 - Sunxi regulator, IRQ banks and pin base fixup
 - Intel Cherryview Strago DMI workaround
 - Potential regmap problem on mcp23s08
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Merge tag 'pinctrl-v5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:

 - Mediatek Kconfig fix

 - Sunxi regulator, IRQ banks and pin base fixup

 - Intel Cherryview Strago DMI workaround

 - Potential regmap problem on mcp23s08

* tag 'pinctrl-v5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: sunxi: Correct number of IRQ banks on H6 main pin controller
  pinctrl: mcp23s08: spi: Fix regmap allocation for mcp23s18
  pinctrl: cherryview: fix Strago DMI workaround
  pinctrl: sunxi: Consider pin_base when calculating regulator array index
  pinctrl: sunxi: Fix and simplify pin bank regulator handling
  pinctrl: mediatek: fix Kconfig build errors for moore core
2019-02-07 07:47:08 +00:00
Bjorn Helgaas
e8c32c32b4 net: Don't default Cavium PTP driver to 'y'
8c56df372b ("net: add support for Cavium PTP coprocessor") added the
Cavium PTP coprocessor driver and enabled it by default.  Remove the
"default y" because the driver only applies to Cavium ThunderX processors.

Fixes: 8c56df372b ("net: add support for Cavium PTP coprocessor")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 19:48:15 -08:00
Yang Wei
d2901b0739 net: broadcom: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in sbdma_tx_process() when
skb xmit done. It makes drop profiles(dropwatch, perf) more
friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
e0cbbc6131 net: via-velocity: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in velocity_free_tx_buf()
when skb xmit done. It makes drop profiles(dropwatch, perf) more
friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
f4ad1a6154 net: tehuti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in bdx_tx_cleanup() when skb
xmit done. It makes drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
98fcd70b64 net: sun: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called when skb xmit done. It makes
drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
7c3850adbc net: fsl_ucc_hdlc: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in hdlc_tx_done() when skb
xmit done. It makes drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
c50e964b76 net: fec_mpc52xx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in mpc52xx_fec_tx_interrupt()
when skb xmit done. It makes drop profiles(dropwatch, perf) more
friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
bb6a702c6d net: smsc: epic100: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in epic_tx() when skb xmit
done. It makes drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
96d26503e1 net: dscc4: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in dscc4_tx_irq() when skb
xmit done. It makes drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
62d1a31cfb net: tulip: de2104x: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in de_tx() when skb xmit
done. It makes drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Yang Wei
3703a39501 net: defxx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
dev_consume_skb_irq() should be called in dfx_xmt_done() when skb
xmit done. It makes drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Reviewed-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:38:15 -08:00
Tonghao Zhang
218d05ce32 net/mlx5e: Don't overwrite pedit action when multiple pedit used
In some case, we may use multiple pedit actions to modify packets.
The command shown as below: the last pedit action is effective.

$ tc filter add dev netdev_rep parent ffff: protocol ip prio 1    \
	flower skip_sw ip_proto icmp dst_ip 3.3.3.3        \
	action pedit ex munge ip dst set 192.168.1.100 pipe    \
	action pedit ex munge eth src set 00:00:00:00:00:01 pipe    \
	action pedit ex munge eth dst set 00:00:00:00:00:02 pipe    \
	action csum ip pipe    \
	action tunnel_key set src_ip 1.1.1.100 dst_ip 1.1.1.200 dst_port 4789 id 100 \
	action mirred egress redirect dev vxlan0

To fix it, we add max_mod_hdr_actions to mlx5e_tc_flow_parse_attr struction,
max_mod_hdr_actions will store the max pedit action number we support and
num_mod_hdr_actions indicates how many pedit action we used, and store all
pedit action to mod_hdr_actions.

Fixes: d79b6df6b1 ("net/mlx5e: Add parsing of TC pedit actions to HW format")
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:12:13 -08:00
Tonghao Zhang
6707f74be8 net/mlx5e: Update hw flows when encap source mac changed
When we offload tc filters to hardware, hardware flows can
be updated when mac of encap destination ip is changed.
But we ignore one case, that the mac of local encap ip can
be changed too, so we should also update them.

To fix it, add route_dev in mlx5e_encap_entry struct to save
the local encap netdevice, and when mac changed, kernel will
flush all the neighbour on the netdevice and send NETEVENT_NEIGH_UPDATE
event. The mlx5 driver will delete the flows and add them when neighbour
available again.

Fixes: 232c001398 ("net/mlx5e: Add support to neighbour update flow")
Cc: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 17:12:13 -08:00
David S. Miller
2ba036b970 Merge branch 'qed-Bug-fixes'
Manish Chopra says:

====================
qed*: Bug fixes.

This series contains general qed/qede fixes.
Please consider applying this to "net"
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:53:33 -08:00
Manish Chopra
42dbcd6b25 qed*: Advance drivers version to 8.37.0.20
Version update for qed/qede modules.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:53:33 -08:00
Rahul Verma
8c8502532f qed: Change verbosity for coalescing message.
Fix unnecessary logging of message in an expected
default case where coalescing value read (via ethtool -c)
migh not be valid unless they are configured explicitly
in the hardware using ethtool -C.

Signed-off-by: Rahul Verma <rverma@marvell.com>
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:53:33 -08:00
Sudarsana Reddy Kalluru
0aa4febb42 qede: Fix system crash on configuring channels.
Under heavy traffic load, when changing number of channels via
ethtool (ethtool -L) which will cause interface to be reloaded,
it was observed that some packets gets transmitted on old TX
channel/queue id which doesn't really exist after the channel
configuration leads to system crash.

Add a safeguard in the driver by validating queue id through
ndo_select_queue() which is called before the ndo_start_xmit().

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:53:33 -08:00
Sudarsana Reddy Kalluru
fb1faab74d qed: Consider TX tcs while deriving the max num_queues for PF.
Max supported queues is derived incorrectly in the case of multi-CoS.
Need to consider TCs while calculating num_queues for PF.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:53:33 -08:00
Sudarsana Reddy Kalluru
ebd873a31c qed: Assign UFP TC value to vlan priority in UFP mode.
In the case of Unified Fabric Port (UFP) mode, switch provides
the traffic class (TC) value to be used for the traffic.
Configure hardware to use this TC value for vlan priority.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:53:32 -08:00
Manish Chopra
660492bcf4 qed: Fix EQ full firmware assert.
When slowpath messages are sent with high rate, the resulting
events can lead to a FW assert in case they are not handled fast
enough (Event Queue Full assert). Attempt to send queued slowpath
messages only after the newly evacuated entries in the EQ ring
are indicated to FW.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:53:32 -08:00
Dave Airlie
78eb1ca475 Merge branch 'vmwgfx-fixes-5.0-2' of git://people.freedesktop.org/~thomash/linux into drm-fixes
A patch set from Christoph for vmwgfx dma mode detection breakage with the
new dma code restructuring in 5.0

A couple of fixes also CC'd stable

Finally an improved IOMMU detection that automatically enables dma mapping
also with other vIOMMUS than the intel one if present and enabled.
Currently trying to start a VM in that case would fail catastrophically.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thellstrom@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190206194735.4663-1-thellstrom@vmware.com
2019-02-07 10:36:47 +10:00
Dave Airlie
8628752d0c Merge branch 'drm-fixes-5.0' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
- Fix missing freesync properties on eDP
- Fix locking in pasid mgr
- Fix clang warning in kfd
- DC/powerplay fix
- Fix reported rev ids on raven
- Doorbell fix for vega20

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190205231301.3815-1-alexander.deucher@amd.com
2019-02-07 10:25:31 +10:00
Thinh Nguyen
f57a98e1b7 PCI: Work around Synopsys duplicate Device ID (HAPS USB3, NXP i.MX)
There are at least four different parts with the same Vendor and Device
ID ([16c3:abcd]):

  1) Synopsys HAPS USB3 controller
  2) Synopsys PCIe Root Port in Freescale/NXP i.MX6Q (reported by Lucas)
  3) Synopsys PCIe Root Port in Freescale/NXP i.MX6QP (reported by Lukas)
  4) Synopsys PCIe Root Port in Freescale/NXP i.MX7D (reported by Trent)

The HAPS USB3 controller has a Class Code of PCI_CLASS_SERIAL_USB_XHCI,
which means the XHCI driver would normally claim it.  Previously,
quirk_synopsys_haps() changed the Class Code of all [16c3:abcd] devices,
including the Root Ports, to PCI_CLASS_SERIAL_USB_DEVICE to prevent the
XHCI driver from claiming them so dwc3-haps can claim them instead.

Changing the Class Code of the Root Ports prevents the PCI core from
handling them as bridges, so devices below them don't work.

Restrict the quirk so it only changes the Class Code for devices that start
with the PCI_CLASS_SERIAL_USB_XHCI Class Code, leaving the Root Ports
alone.

Fixes: 03e6742584 ("PCI: Override Synopsys USB 3.x HAPS device class")
Reported-by: Lukas F. Hartmann <lukas@mntmn.com>
Reported-by: Trent Piepho <tpiepho@impinj.com>
Reported-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-02-06 17:17:27 -06:00
Mike Snitzer
fa8db4948f dm: don't use bio_trim() afterall
bio_trim() has an early return, which makes it _not_ idempotent, if the
offset is 0 and the bio's bi_size already matches the requested size.
Prior to DM, all users of bio_trim() were fine with this.  But DM has
exposed the fact that bio_trim()'s early return is incompatible with a
cloned bio whose integrity payload must be trimmed via
bio_integrity_trim().

Fix this by reverting DM back to doing the equivalent of bio_trim() but
in an idempotent manner (so bio_integrity_trim is always performed).

Follow-on work is needed to assess what benefit bio_trim()'s early
return is providing to its existing callers.

Reported-by: Milan Broz <gmazyland@gmail.com>
Fixes: 57c36519e4 ("dm: fix clone_bio() to trigger blk_recount_segments()")
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-02-06 17:24:37 -05:00
Mikulas Patocka
645efa84f6 dm: add memory barrier before waitqueue_active
Block core changes to switch bio-based IO accounting to be percpu had a
side-effect of altering DM core to now rely on calling waitqueue_active
(in both bio-based and request-based) to check if another task is in
dm_wait_for_completion().

A memory barrier is needed before calling waitqueue_active().  DM core
doesn't piggyback on a preceding memory barrier so it must explicitly
use its own.

For more details on why using waitqueue_active() without a preceding
barrier is unsafe, please see the comment before the waitqueue_active()
definition in include/linux/wait.h.

Add the missing memory barrier by switching to using wq_has_sleeper().

Fixes: 6f75723190 ("dm: remove the pending IO accounting")
Fixes: c4576aed8d ("dm: fix request-based dm's use of dm_wait_for_completion")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-02-06 17:24:37 -05:00
Dan Carpenter
00670cb8a7 net: dsa: Fix NULL checking in dsa_slave_set_eee()
This function can't succeed if dp->pl is NULL.  It will Oops inside the
call to return phylink_ethtool_get_eee(dp->pl, e);

Fixes: 1be52e97ed ("dsa: slave: eee: Allow ports to use phylink")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 13:42:54 -08:00
Chuck Lever
e248aa7be8 svcrdma: Remove max_sge check at connect time
Two and a half years ago, the client was changed to use gathered
Send for larger inline messages, in commit 655fec6987 ("xprtrdma:
Use gathered Send for large inline messages"). Several fixes were
required because there are a few in-kernel device drivers whose
max_sge is 3, and these were broken by the change.

Apparently my memory is going, because some time later, I submitted
commit 25fd86eca1 ("svcrdma: Don't overrun the SGE array in
svc_rdma_send_ctxt"), and after that, commit f3c1fd0ee2 ("svcrdma:
Reduce max_send_sges"). These too incorrectly assumed in-kernel
device drivers would have more than a few Send SGEs available.

The fix for the server side is not the same. This is because the
fundamental problem on the server is that, whether or not the client
has provisioned a chunk for the RPC reply, the server must squeeze
even the most complex RPC replies into a single RDMA Send. Failing
in the send path because of Send SGE exhaustion should never be an
option.

Therefore, instead of failing when the send path runs out of SGEs,
switch to using a bounce buffer mechanism to handle RPC replies that
are too complex for the device to send directly. That allows us to
remove the max_sge check to enable drivers with small max_sge to
work again.

Reported-by: Don Dutile <ddutile@redhat.com>
Fixes: 25fd86eca1 ("svcrdma: Don't overrun the SGE array in ...")
Cc: stable@vger.kernel.org
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2019-02-06 15:32:34 -05:00
Trond Myklebust
e3fdc89ca4 nfsd: Fix error return values for nfsd4_clone_file_range()
If the parameter 'count' is non-zero, nfsd4_clone_file_range() will
currently clobber all errors returned by vfs_clone_file_range() and
replace them with EINVAL.

Fixes: 42ec3d4c02 ("vfs: make remap_file_range functions take and...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # v4.20+
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2019-02-06 15:32:05 -05:00
Tetsuo Handa
43636c804d fs: ratelimit __find_get_block_slow() failure message.
When something let __find_get_block_slow() hit all_mapped path, it calls
printk() for 100+ times per a second. But there is no need to print same
message with such high frequency; it is just asking for stall warning, or
at least bloating log files.

  [  399.866302][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
  [  399.873324][T15342] b_state=0x00000029, b_size=512
  [  399.878403][T15342] device loop0 blocksize: 4096
  [  399.883296][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
  [  399.890400][T15342] b_state=0x00000029, b_size=512
  [  399.895595][T15342] device loop0 blocksize: 4096
  [  399.900556][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
  [  399.907471][T15342] b_state=0x00000029, b_size=512
  [  399.912506][T15342] device loop0 blocksize: 4096

This patch reduces frequency to up to once per a second, in addition to
concatenating three lines into one.

  [  399.866302][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8, b_state=0x00000029, b_size=512, device loop0 blocksize: 4096

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-06 12:58:56 -07:00
Russell King
2b1f86bf74 MAINTAINERS: add maintainer for SFF/SFP/SFP+ support
Add maintainer entry for SFF/SFP/SFP+ support.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 11:53:51 -08:00
Chengguang Xu
30363d6506 m68k: set proper major_num when specifying module param major_num
When calling register_blkdev() with specified major
device number, the return code is 0 on success.
So it seems not correct direct assign return code to
variable major_num in this case.

Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-06 12:50:40 -07:00
Hans de Goede
dd957493ba libata: Add NOLPM quirk for SAMSUNG MZ7TE512HMHP-000L1 SSD
We've received a bugreport that using LPM with a SAMSUNG
MZ7TE512HMHP-000L1 SSD leads to system instability, we already have
a quirk for the MZ7TD256HAFV-000L9, which is also a Samsun EVO 840 /
PM851 OEM model, so it seems some of these models have a LPM issue.

This commits adds a NOLPM quirk for the model string from the new
bugeport, to avoid the reported stability issues.

Cc: stable@vger.kernel.org
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1571330
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-06 12:47:09 -07:00
Eric Dumazet
6dce3c20ac rxrpc: bad unlock balance in rxrpc_recvmsg
When either "goto wait_interrupted;" or "goto wait_error;"
paths are taken, socket lock has already been released.

This patch fixes following syzbot splat :

WARNING: bad unlock balance detected!
5.0.0-rc4+ #59 Not tainted
-------------------------------------
syz-executor223/8256 is trying to release lock (sk_lock-AF_RXRPC) at:
[<ffffffff86651353>] rxrpc_recvmsg+0x6d3/0x3099 net/rxrpc/recvmsg.c:598
but there are no more locks to release!

other info that might help us debug this:
1 lock held by syz-executor223/8256:
 #0: 00000000fa9ed0f4 (slock-AF_RXRPC){+...}, at: spin_lock_bh include/linux/spinlock.h:334 [inline]
 #0: 00000000fa9ed0f4 (slock-AF_RXRPC){+...}, at: release_sock+0x20/0x1c0 net/core/sock.c:2798

stack backtrace:
CPU: 1 PID: 8256 Comm: syz-executor223 Not tainted 5.0.0-rc4+ #59
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+0x172/0x1f0 lib/dump_stack.c:113
 print_unlock_imbalance_bug kernel/locking/lockdep.c:3391 [inline]
 print_unlock_imbalance_bug.cold+0x114/0x123 kernel/locking/lockdep.c:3368
 __lock_release kernel/locking/lockdep.c:3601 [inline]
 lock_release+0x67e/0xa00 kernel/locking/lockdep.c:3860
 sock_release_ownership include/net/sock.h:1471 [inline]
 release_sock+0x183/0x1c0 net/core/sock.c:2808
 rxrpc_recvmsg+0x6d3/0x3099 net/rxrpc/recvmsg.c:598
 sock_recvmsg_nosec net/socket.c:794 [inline]
 sock_recvmsg net/socket.c:801 [inline]
 sock_recvmsg+0xd0/0x110 net/socket.c:797
 __sys_recvfrom+0x1ff/0x350 net/socket.c:1845
 __do_sys_recvfrom net/socket.c:1863 [inline]
 __se_sys_recvfrom net/socket.c:1859 [inline]
 __x64_sys_recvfrom+0xe1/0x1a0 net/socket.c:1859
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x446379
Code: e8 2c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe5da89fd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446379
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 0000000000000000 R14: 0000000000000000 R15: 20c49ba5e353f7cf

Fixes: 248f219cb8 ("rxrpc: Rewrite the data and ack handling code")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Howells <dhowells@redhat.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 10:54:07 -08:00
Kirill A. Shutemov
45b13b424f x86/boot/compressed/64: Do not corrupt EDX on EFER.LME=1 setting
RDMSR in the trampoline code overwrites EDX but that register is used
to indicate whether 5-level paging has to be enabled and if clobbered,
leads to failure to boot on a 5-level paging machine.

Preserve EDX on the stack while we are dealing with EFER.

Fixes: b677dfae5a ("x86/boot/compressed/64: Set EFER.LME=1 in 32-bit trampoline before returning to long mode")
Reported-by: Kyle D Pelton <kyle.d.pelton@intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: dave.hansen@linux.intel.com
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Huang <wei@redhat.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190206115253.1907-1-kirill.shutemov@linux.intel.com
2019-02-06 18:56:18 +01:00
Kuninori Morimoto
d9111d3602
ASoC: rsnd: fixup rsnd_ssi_master_clk_start() user count check
commit 4d230d1271 ("ASoC: rsnd: fixup not to call clk_get/set
under non-atomic") added new rsnd_ssi_prepare() and moved
rsnd_ssi_master_clk_start() to .prepare.
But, ssi user count (= ssi->usrcnt) is incremented at .init
(= rsnd_ssi_init()).
Because of these timing exchange, ssi->usrcnt check at
rsnd_ssi_master_clk_start() should be adjusted.
Otherwise, 2nd master clock setup will be no check.
This patch fixup this issue.

Fixes: commit 4d230d1271 ("ASoC: rsnd: fixup not to call clk_get/set under non-atomic")
Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Reported-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-06 17:44:18 +00:00
Pierre-Louis Bossart
c16e120100
ASoC: dapm: fix out-of-bounds accesses to DAPM lookup tables
KASAN reports and additional traces point to out-of-bounds accesses to
the dapm_up_seq and dapm_down_seq lookup tables. The indices used are
larger than the array definition.

Fix by adding missing entries for the new widget types in these two
lookup tables, and align them with PGA values.

Also the sequences for the following widgets were not defined. Since
their values defaulted to zero, assign them explicitly

 snd_soc_dapm_input
 snd_soc_dapm_output
 snd_soc_dapm_vmid
 snd_soc_dapm_siggen
 snd_soc_dapm_sink

Fixes: 8a70b4544e ('ASoC: dapm: Add new widget type for constructing DAPM graphs on DSPs.').
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-06 17:25:49 +00:00
Jens Axboe
d592974f8c Merge branch 'nvme-5.0' of git://git.infradead.org/nvme into for-linus
Pull NVMe fixes from Christoph for this release.

* 'nvme-5.0' of git://git.infradead.org/nvme:
  nvme-pci: fix rapid add remove sequence
  nvme: lock NS list changes while handling command effects
2019-02-06 08:43:07 -07:00
Keith Busch
5c959d73db nvme-pci: fix rapid add remove sequence
A surprise removal may fail to tear down request queues if it is racing
with the initial asynchronous probe. If that happens, the remove path
won't see the queue resources to tear down, and the controller reset
path may create a new request queue on a removed device, but will not
be able to make forward progress, deadlocking the pci removal.

Protect setting up non-blocking resources from a shutdown by holding the
same mutex, and transition to the CONNECTING state after these resources
are initialized so the probe path may see the dead controller state
before dispatching new IO.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=202081
Reported-by: Alex Gagniuc <Alex_Gagniuc@Dellteam.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Tested-by: Alex Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-02-06 16:35:33 +01:00
Keith Busch
e7ad43c3ed nvme: lock NS list changes while handling command effects
If a controller supports the NS Change Notification, the namespace
scan_work is automatically triggered after attaching a new namespace.

Occasionally the namespace scan_work may append the new namespace to the
list before the admin command effects handling is completed. The effects
handling unfreezes namespaces, but if it unfreezes the newly attached
namespace, its request_queue freeze depth will be off and we'll hit the
warning in blk_mq_unfreeze_queue().

On the next namespace add, we will fail to freeze that queue due to the
previous bad accounting and deadlock waiting for frozen.

Fix that by preventing scan work from altering the namespace list while
command effects handling needs to pair freeze with unfreeze.

Reported-by: Wen Xiong <wenxiong@us.ibm.com>
Tested-by: Wen Xiong <wenxiong@us.ibm.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-02-06 16:35:33 +01:00
Mike Marshall
ec51f8ee1e aio: initialize kiocb private in case any filesystems expect it.
A recent optimization had left private uninitialized.

Fixes: 2bc4ca9bb6 ("aio: don't zero entire aio_kiocb aio_get_req()")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-06 08:04:22 -07:00
Chen-Yu Tsai
d6f11e7d91 mmc: sunxi: Filter out unsupported modes declared in the device tree
The MMC device tree bindings include properties used to signal various
signalling speed modes. Until now the sunxi driver was accepting them
without any further filtering, while the sunxi device trees were not
actually using them.

Since some of the H5 boards can not run at higher speed modes stably,
we are resorting to declaring the higher speed modes per-board.

Regardless, having boards declare modes and blindly following them,
even without proper support in the driver, is generally a bad thing.

Filter out all unsupported modes from the capabilities mask after
the device tree properties have been parsed.

Cc: <stable@vger.kernel.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-02-06 16:03:43 +01:00
Chen-Yu Tsai
d49d92ace4 mmc: sunxi: Disable HS-DDR mode for H5 eMMC controller by default
Some H5 boards seem to not have proper trace lengths for eMMC to be able
to use the default setting for the delay chains under HS-DDR mode. These
include the Bananapi M2+ H5 and NanoPi NEO Core2. However the Libre
Computer ALL-H3-CC-H5 works just fine.

For the H5 (at least for now), default to not enabling HS-DDR modes in
the driver, and expect the device tree to signal HS-DDR capability on
boards that work.

Reported-by: Chris Blake <chrisrblake93@gmail.com>
Fixes: 07bafc1e35 ("mmc: sunxi: Use new timing mode for A64 eMMC controller")
Cc: <stable@vger.kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-02-06 16:02:37 +01:00
Tomi Valkeinen
6297388e1e drm/omap: dsi: Hack-fix DSI bus flags
Since commit b4935e3a3c ("drm/omap: Store bus flags in the
omap_dss_device structure") video mode flags are managed by the omapdss
(and later omapdrm) core based on bus flags stored in omap_dss_device.
This works fine for all devices whose video modes are set by the omapdss
and omapdrm core, but breaks DSI operation as the DSI still uses legacy
code paths and sets the DISPC timings manually.

To fix the problem properly we should move the DSI encoder to the new
encoder model. This will however require a considerable amount of work.
Restore DSI operation by adding back video mode flags handling in the
DSI encoder driver as a hack in the meantime.

Fixes: b4935e3a3c ("drm/omap: Store bus flags in the omap_dss_device structure")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190111035120.20668-5-laurent.pinchart@ideasonboard.com
2019-02-06 13:39:03 +02:00
Tomi Valkeinen
0940c52742 drm/omap: dsi: Fix OF platform depopulate
Commit edb715dffd ("drm/omap: dss: dsi: Move initialization code from
bind to probe") moved the of_platform_populate() call from dsi_bind() to
dsi_probe(), but failed to move the corresponding
of_platform_depopulate() from dsi_unbind() to dsi_remove(). This results
in OF child devices being potentially removed multiple times. Fix it by
placing the of_platform_depopulate() call where it belongs.

Fixes: edb715dffd ("drm/omap: dss: dsi: Move initialization code from bind to probe")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190111035120.20668-4-laurent.pinchart@ideasonboard.com
2019-02-06 13:39:00 +02:00
Tomi Valkeinen
4df04ac9b3 drm/omap: dsi: Fix crash in DSI debug dumps
Reading any of the DSI debugfs files results in a crash, as wrong
pointer is passed to the dump functions, and the dump functions use a
wrong pointer. This patch fixes DSI debug dumps.

Fixes: f3ed97f9ae ("drm/omap: dsi: Simplify debugfs implementation")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190111035120.20668-3-laurent.pinchart@ideasonboard.com
2019-02-06 13:38:54 +02:00
Johannes Berg
73350424be cfg80211: pmsr: fix abort locking
When we destroy the interface we already hold the wdev->mtx
while calling cfg80211_pmsr_wdev_down(), which assumes this
isn't true and flushes the worker that takes the lock, thus
leading to a deadlock.

Fix this by refactoring the worker and calling its code in
cfg80211_pmsr_wdev_down() directly.

We still need to flush the work later to make sure it's not
still running and will crash, but it will not do anything.

Fixes: 9bb7e0f24e ("cfg80211: add peer measurement with FTM initiator API")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-06 10:38:00 +01:00