Commit Graph

796730 Commits

Author SHA1 Message Date
Jens Axboe
7d692330e7 block: get rid of blk_queued_rq()
No point in hiding what this does, just open code it in the
one spot where we are still using it.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:33 -07:00
Jens Axboe
8b98a97f80 blk-merge: kill dead queue lock held check
This is dead code, any queue reaching this part has mq_ops
attached.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:33 -07:00
Jens Axboe
2081a56bfa block: remove req_no_special_merge() from merging code
It'll always be false at this point, just remove it.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:33 -07:00
Jens Axboe
820efc62fc block: kill request slab cache
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:33 -07:00
Jens Axboe
db6d995235 block: remove request_list code
It's now dead code, nobody uses it.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:33 -07:00
Jens Axboe
1028e4b335 bsg: move bsg-lib parts outside of request queue
Get rid of the special bsg job fn and timeout handler, move them
into a private bsg_set instead.

Mostly from Christoph, with fixes for error handling and cleanups.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:33 -07:00
Jens Axboe
4316b79e43 block: kill legacy parts of timeout handling
The only user of legacy timing now is BSG, which is invoked
from the mq timeout handler. Kill the legacy code, and rename
the q->rq_timed_out_fn to q->bsg_job_timeout_fn.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:33 -07:00
Jens Axboe
92bc5a2484 block: remove __blk_put_request()
Now there's no difference between blk_put_request() and
__blk_put_request() anymore, get rid of the underscore version and
convert the few callers.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
f9cd4bfe96 block: get rid of MQ scheduler ops union
This is a remnant of when we had ops for both SQ and MQ
schedulers. Now it's just MQ, so get rid of the union.

Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
a1ce35fa49 block: remove dead elevator code
This removes a bunch of core and elevator related code. On the core
front, we remove anything related to queue running, draining,
initialization, plugging, and congestions. We also kill anything
related to request allocation, merging, retrieval, and completion.

Remove any checking for single queue IO schedulers, as they no
longer exist. This means we can also delete a bunch of code related
to request issue, adding, completion, etc - and all the SQ related
ops and helpers.

Also kill the load_default_modules(), as all that did was provide
for a way to load the default single queue elevator.

Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
f382fb0bce block: remove legacy IO schedulers
Retain the deadline documentation, as that carries over to mq-deadline
as well.

Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
404b8f5a03 block: cleanup kick/queued handling
Now that blk_flush_queue_rq() always returns false, we can
remove that return value. That bubbles through the stack,
allowing us to remove a bunch of state tracking around it.

Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
7e992f847a block: remove non mq parts from the flush code
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
7ca0192646 block: remove legacy rq tagging
It's now unused, kill it.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
2cdf2caecd blk-cgroup: remove legacy queue bypassing
We only support mq devices now.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
3c7741567b blk-wbt: kill check for legacy queue type
Everything is blk-mq at this point, so it doesn't make any sense
to have this option available as it does nothing.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
771a93c489 block: remove blk_complete_request()
It's now unused.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
cd2f076f1d bsg: convert to use blk-mq
Requires a few changes to the FC transport class as well.

Cc: linux-scsi@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Tested-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
5e28b8d8a1 bsg: provide bsg_remove_queue() helper
All drivers do unregister + cleanup, provide a helper for that.

Cc: linux-scsi@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
aae3b069d5 bsg: pass in desired timeout handler
This will ease in the conversion to blk-mq, where we can't set
a timeout handler after queue init.

Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: linux-scsi@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
583d6535cb dasd: remove dead code
Since e443343e50 we haven't had a request_fn attached to
this driver, hence any code inside an if (q->request_fn) is
unreachable.

Fixes: e443343e50 ("s390/dasd: blk-mq conversion")
[sth: Keep and fix the dasd_info->chanq_len counter.]
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
c6f2882691 block: remove q->lld_busy_fn()
Nobody is using the legacy path for blk_lld_busy() anymore, remove
it.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
f664a3cc17 scsi: kill off the legacy IO path
This removes the legacy (non-mq) IO path for SCSI.

Cc: linux-scsi@vger.kernel.org
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
3a7ea2c483 scsi: provide mq_ops->busy() hook
Only the SCSI legacy path provides a way to check if target is
currently busy, provide the same for the MQ path.

Cc: linux-scsi@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:32 -07:00
Jens Axboe
9ba20527f4 blk-mq: provide mq_ops->busy() hook
We'll hook into this from blk_lld_busy(), allowing blk-mq to also
return whether or not a given queue currently has requests in
progress.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:31 -07:00
Jens Axboe
ba7b443422 blk-mq: remove legacy check in queue blk_freeze_queue()
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:31 -07:00
Jens Axboe
7ac257b862 blk-mq: remove the request_list usage
We don't do anything with it, that's just the legacy path.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:31 -07:00
Jens Axboe
600335205b ide: convert to blk-mq
ide-disk and ide-cd tested as working just fine, ide-tape and
ide-floppy haven't. But the latter don't require changes, so they
should work without issue.

Add helper function to insert a request from a work queue, since we
cannot invoke the blk-mq request insertion from IRQ context.

Cc: David Miller <davem@davemloft.net>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:31 -07:00
Jens Axboe
d0be12274d mspro_block: convert to blk-mq
Straight forward conversion, there's room for improvement.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:31 -07:00
Jens Axboe
db1142a83b ms_block: convert to blk-mq
Straight forward conversion, room for optimization in how everything
is punted to a work queue. Also looks plenty racy all over the map,
with the state changes. I fixed a bunch of them up while doing the
conversion, but there are surely more.

Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:31 -07:00
Jens Axboe
fa182a1fa9 sunvdc: convert to blk-mq
Convert from the old request_fn style driver to blk-mq.

Cc: David Miller <davem@davemloft.net>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:42:31 -07:00
Masato Suzuki
ea2c18e104 null_blk: Add conventional zone configuration for zoned support
Allow the creation of conventional zones by adding the zone_nr_conv
configuration attribute. This new attribute is used only for zoned devices
and indicates the number of conventional zones to create. The default value
is 0. Since host-managed zoned block devices must always have at least one
sequential zone, if the value of zone_nr_conv is larger than or equal to
the total number of zones of the device nr_zones, zone_nr_conv is
automatically changed to nr_zones - 1.

Reviewed-by: Matias Bjorling <matias.bjorling@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Masato Suzuki <masato.suzuki@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-07 13:41:50 -07:00
Linus Torvalds
85758777c2 hwmon fixes for v4.20-rc2
- Remove bogus __init annotations in ibmpowernv driver
 - Fix double-free in error handling of __hwmon_device_register()
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Merge tag 'hwmon-for-v4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Remove bogus __init annotations in ibmpowernv driver

 - Fix double-free in error handling of __hwmon_device_register()

* tag 'hwmon-for-v4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (ibmpowernv) Remove bogus __init annotations
  hwmon: (core) Fix double-free in __hwmon_device_register()
2018-11-07 11:39:07 -08:00
Linus Torvalds
e09d51adfb ARM: SoC fixes
A few more fixes that have come in, and one revert of a previous fix.
 
 I was a bit too trigger happy to enable PREEMPT on multi_v7_defconfig,
 and it ended up regressing at least BeagleBone XM boards. While we get
 that debugged for next merge window, let's disable it again.
 
 Beyond that:
 
  - Stratix change to fix multicast filtering
  - Minor DT fixes for Renesas and i.MX
  - Ethernet fix for a Renesas board (switching main interfaces)
  - Ethernet phy regulator fix for i.MX6SX
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A few more fixes that have come in, and one revert of a previous fix.

  I was a bit too trigger happy to enable PREEMPT on multi_v7_defconfig,
  and it ended up regressing at least BeagleBone XM boards. While we get
  that debugged for next merge window, let's disable it again.

  Beyond that:

   - Stratix change to fix multicast filtering

   - Minor DT fixes for Renesas and i.MX

   - Ethernet fix for a Renesas board (switching main interfaces)

   - Ethernet phy regulator fix for i.MX6SX"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: dts: stratix10: fix multicast filtering
  ARM: defconfig: Disable PREEMPT again on  multi_v7
  arm64: dts: renesas: condor: switch from EtherAVB to GEther
  dt-bindings: arm: Fix RZ/G2E part number
  arm64: dts: renesas: r8a7795: add missing dma-names on hscif2
  ARM: dts: imx6sx-sdb: Fix enet phy regulator
  ARM: dts: fsl: Fix improperly quoted stdout-path values
  ARM: dts: imx6sll: fix typo for fsl,imx6sll-i2c node
2018-11-07 09:13:34 -08:00
Linus Torvalds
ecb4d529f1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:

 - hid.git is moving towards group maintainership (where group is myself
   and Benjamin Tissoires), therefore this pull request updates
   MAINTAINERS accordingly

 - fix for hid-asus config dependency from Arnd Bergmann

 - two device-specific quirks for i2c-hid from Julian Sax and Kai-Heng
   Feng

 - other few small assorted fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: fix up .raw_event() documentation
  HID: asus: fix build warning wiht CONFIG_ASUS_WMI disabled
  HID: i2c-hid: add Direkt-Tek DTLAPY133-1 to descriptor override
  HID: moving to group maintainership model
  HID: alps: allow incoming reports when only the trackstick is opened
  Revert "HID: add NOGET quirk for Eaton Ellipse MAX UPS"
  HID: i2c-hid: Add a small delay after sleep command for Raydium touchpanel
  HID: hiddev: fix potential Spectre v1
2018-11-07 09:05:58 -08:00
Olof Johansson
a89f84a56e ARM: dts: stratix10: fix multicast filtering
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Merge tag 'stratix10_dts_fix_for_v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into fixes

ARM: dts: stratix10: fix multicast filtering

On Stratix 10, the EMAC has 256 hash buckets for multicast filtering. This
needs to be specified in DTS, otherwise the stmmac driver defaults to 64
buckets and initializes the filter incorrectly. As a result, e.g. valid
IPv6 multicast traffic ends up being dropped.

* tag 'stratix10_dts_fix_for_v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  arm64: dts: stratix10: fix multicast filtering

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-07 08:09:50 -08:00
Olof Johansson
9be66f55b1 Renesas ARM Based SoC Fixes for v4.20
* R-Car V3H (r8a77980) based Condor board
   - Switch from EtherAVB to GEther to match offical boards
 
 * RZ/G2E (ra8774c0) SoC: correct documentation of part number
 
 * R-Car H3 (r8a7795) SoC: reinstate all DMA channels on HSCIF2
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Merge tag 'renesas-fixes-for-v4.20' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Renesas ARM Based SoC Fixes for v4.20

* R-Car V3H (r8a77980) based Condor board
  - Switch from EtherAVB to GEther to match offical boards

* RZ/G2E (ra8774c0) SoC: correct documentation of part number

* R-Car H3 (r8a7795) SoC: reinstate all DMA channels on HSCIF2

* tag 'renesas-fixes-for-v4.20' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  arm64: dts: renesas: condor: switch from EtherAVB to GEther
  dt-bindings: arm: Fix RZ/G2E part number
  arm64: dts: renesas: r8a7795: add missing dma-names on hscif2

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-07 07:59:33 -08:00
Linus Torvalds
8053e5b93e Masami found a slight bug in his code where he transposed the arguments of a
call to strpbrk.
 
 The reason this wasn't detected in our tests is that the only way this would
 transpire is when a kprobe event with a symbol offset is attached to a
 function that belongs to a module that isn't loaded yet. When the kprobe
 trace event is added, the offset would be truncated after it was parsed,
 and when the module is loaded, it would use the symbol without the offset
 (as the nul character added by the parsing would not be replaced with the
 original character).
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Merge tag 'trace-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Masami found a slight bug in his code where he transposed the
  arguments of a call to strpbrk.

  The reason this wasn't detected in our tests is that the only way this
  would transpire is when a kprobe event with a symbol offset is
  attached to a function that belongs to a module that isn't loaded yet.
  When the kprobe trace event is added, the offset would be truncated
  after it was parsed, and when the module is loaded, it would use the
  symbol without the offset (as the nul character added by the parsing
  would not be replaced with the original character)"

* tag 'trace-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing/kprobes: Fix strpbrk() argument order
2018-11-06 08:12:10 -08:00
Linus Torvalds
4581aa9647 Merge branch 'spectre' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fix from Russell King:
 "Ard spotted a typo in one of the assembly files which leads to a
  kernel oops when that code path is executed. Fix this"

* 'spectre' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8809/1: proc-v7: fix Thumb annotation of cpu_v7_hvc_switch_mm
2018-11-06 08:10:01 -08:00
Linus Torvalds
a13511dfa8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Handle errors mid-stream of an all dump, from Alexey Kodanev.

 2) Fix build of openvswitch with certain combinations of netfilter
    options, from Arnd Bergmann.

 3) Fix interactions between GSO and BQL, from Eric Dumazet.

 4) Don't put a '/' in RTL8201F's sysfs file name, from Holger
    Hoffstätte.

 5) S390 qeth driver fixes from Julian Wiedmann.

 6) Allow ipv6 link local addresses for netconsole when both source and
    destination are link local, from Matwey V. Kornilov.

 7) Fix the BPF program address seen in /proc/kallsyms, from Song Liu.

 8) Initialize mutex before use in dsa microchip driver, from Tristram
    Ha.

 9) Out-of-bounds access in hns3, from Yunsheng Lin.

10) Various netfilter fixes from Stefano Brivio, Jozsef Kadlecsik, Jiri
    Slaby, Florian Westphal, Eric Westbrook, Andrey Ryabinin, and Pablo
    Neira Ayuso.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (50 commits)
  net: alx: make alx_drv_name static
  net: bpfilter: fix iptables failure if bpfilter_umh is disabled
  sock_diag: fix autoloading of the raw_diag module
  net: core: netpoll: Enable netconsole IPv6 link local address
  ipv6: properly check return value in inet6_dump_all()
  rtnetlink: restore handling of dumpit return value in rtnl_dump_all()
  net/ipv6: Move anycast init/cleanup functions out of CONFIG_PROC_FS
  bonding/802.3ad: fix link_failure_count tracking
  net: phy: realtek: fix RTL8201F sysfs name
  sctp: define SCTP_SS_DEFAULT for Stream schedulers
  sctp: fix strchange_flags name for Stream Change Event
  mlxsw: spectrum: Fix IP2ME CPU policer configuration
  openvswitch: fix linking without CONFIG_NF_CONNTRACK_LABELS
  qed: fix link config error handling
  net: hns3: Fix for out-of-bounds access when setting pfc back pressure
  net/mlx4_en: use __netdev_tx_sent_queue()
  net: do not abort bulk send on BQL status
  net: bql: add __netdev_tx_sent_queue()
  s390/qeth: report 25Gbit link speed
  s390/qeth: sanitize ARP requests
  ...
2018-11-06 07:44:04 -08:00
Linus Walleij
aa9b760cec HID: fix up .raw_event() documentation
The documentation for the .raw_event() callback says that if the
driver return 1, there will be no further processing of the event,
but this is not true, the actual code in hid-core.c looks like this:

  if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
           ret = hdrv->raw_event(hid, report, data, size);
           if (ret < 0)
                   goto unlock;
   }

   ret = hid_report_raw_event(hid, type, data, size, interrupt);

The only return value that has any effect on the processing is
a negative error.

Correct this as it seems to confuse people: I found bogus code in
the Razer out-of-tree driver attempting to return 1 here.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-06 13:59:08 +01:00
Arnd Bergmann
3fc202e81d HID: asus: fix build warning wiht CONFIG_ASUS_WMI disabled
asus_wmi_evaluate_method() is an empty dummy function when CONFIG_ASUS_WMI
is disabled, or not reachable from a built-in device driver. This leads to
a theoretical evaluation of an uninitialized variable that the compiler
complains about, failing to check that the hardcoded return value makes
this an unreachable code path:

In file included from include/linux/printk.h:336,
                 from include/linux/kernel.h:14,
                 from include/linux/list.h:9,
                 from include/linux/dmi.h:5,
                 from drivers/hid/hid-asus.c:29:
drivers/hid/hid-asus.c: In function 'asus_input_configured':
include/linux/dynamic_debug.h:135:3: error: 'value' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   __dynamic_dev_dbg(&descriptor, dev, fmt, \
   ^~~~~~~~~~~~~~~~~
drivers/hid/hid-asus.c:359:6: note: 'value' was declared here
  u32 value;
      ^~~~~

With an extra IS_ENABLED() check, the warning goes away.

Fixes: 3b692c55e5 ("HID: asus: only support backlight when it's not driven by WMI")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-06 13:57:42 +01:00
Jiri Kosina
0c72442095 Merge branch 'master' into for-4.20/upstream-fixes
Pull in a merge commit that brought in 3b692c55e5 ("HID: asus: only
support backlight when it's not driven by WMI") so that fixup could be
applied on top of it.
2018-11-06 13:57:02 +01:00
Ard Biesheuvel
6282e916f7 ARM: 8809/1: proc-v7: fix Thumb annotation of cpu_v7_hvc_switch_mm
Due to what appears to be a copy/paste error, the opening ENTRY()
of cpu_v7_hvc_switch_mm() lacks a matching ENDPROC(), and instead,
the one for cpu_v7_smc_switch_mm() is duplicated.

Given that it is ENDPROC() that emits the Thumb annotation, the
cpu_v7_hvc_switch_mm() routine will be called in ARM mode on a
Thumb2 kernel, resulting in the following splat:

  Internal error: Oops - undefined instruction: 0 [#1] SMP THUMB2
  Modules linked in:
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc1-00030-g4d28ad89189d-dirty #488
  Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
  PC is at cpu_v7_hvc_switch_mm+0x12/0x18
  LR is at flush_old_exec+0x31b/0x570
  pc : [<c0316efe>]    lr : [<c04117c7>]    psr: 00000013
  sp : ee899e50  ip : 00000000  fp : 00000001
  r10: eda28f34  r9 : eda31800  r8 : c12470e0
  r7 : eda1fc00  r6 : eda53000  r5 : 00000000  r4 : ee88c000
  r3 : c0316eec  r2 : 00000001  r1 : eda53000  r0 : 6da6c000
  Flags: nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none

Note the 'ISA ARM' in the last line.

Fix this by using the correct name in ENDPROC().

Cc: <stable@vger.kernel.org>
Fixes: 10115105cb ("ARM: spectre-v2: add firmware based hardening")
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-11-06 10:56:16 +00:00
David S. Miller
a422757e8c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains the first batch of Netfilter fixes for
your net tree:

1) Fix splat with IPv6 defragmenting locally generated fragments,
   from Florian Westphal.

2) Fix Incorrect check for missing attribute in nft_osf.

3) Missing INT_MIN & INT_MAX definition for netfilter bridge uapi
   header, from Jiri Slaby.

4) Revert map lookup in nft_numgen, this is already possible with
   the existing infrastructure without this extension.

5) Fix wrong listing of set reference counter, make counter
   synchronous again, from Stefano Brivio.

6) Fix CIDR 0 in hash:net,port,net, from Eric Westbrook.

7) Fix allocation failure with large set, use kvcalloc().
   From Andrey Ryabinin.

8) No need to disable BH when fetch ip set comment, patch from
   Jozsef Kadlecsik.

9) Sanity check for valid sysfs entry in xt_IDLETIMER, from
   Taehee Yoo.

10) Fix suspicious rcu usage via ip_set() macro at netlink dump,
    from Jozsef Kadlecsik.

11) Fix setting default timeout via nfnetlink_cttimeout, this
    comes with preparation patch to add nf_{tcp,udp,...}_pernet()
    helper.

12) Allow ebtables table nat to be of filter type via nft_compat.
    From Florian Westphal.

13) Incorrect calculation of next bucket in early_drop, do no bump
    hash value, update bucket counter instead. From Vasily Khoruzhick.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:19:25 -08:00
Rasmus Villemoes
7131193157 net: alx: make alx_drv_name static
alx_drv_name is not used outside main.c, so there's no reason for it to
have external linkage.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:12:58 -08:00
Taehee Yoo
97adaddaa6 net: bpfilter: fix iptables failure if bpfilter_umh is disabled
When iptables command is executed, ip_{set/get}sockopt() try to upload
bpfilter.ko if bpfilter is enabled. if it couldn't find bpfilter.ko,
command is failed.
bpfilter.ko is generated if CONFIG_BPFILTER_UMH is enabled.
ip_{set/get}sockopt() only checks CONFIG_BPFILTER.
So that if CONFIG_BPFILTER is enabled and CONFIG_BPFILTER_UMH is disabled,
iptables command is always failed.

test config:
   CONFIG_BPFILTER=y
   # CONFIG_BPFILTER_UMH is not set

test command:
   %iptables -L
   iptables: No chain/target/match by that name.

Fixes: d2ba09c17a ("net: add skeleton of bpfilter kernel module")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:12:18 -08:00
Andrei Vagin
c34c128777 sock_diag: fix autoloading of the raw_diag module
IPPROTO_RAW isn't registred as an inet protocol, so
inet_protos[protocol] is always NULL for it.

Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Xin Long <lucien.xin@gmail.com>
Fixes: bf2ae2e4bf ("sock_diag: request _diag module only when the family or proto has been registered")
Signed-off-by: Andrei Vagin <avagin@gmail.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:09:19 -08:00
Matwey V. Kornilov
d016b4a356 net: core: netpoll: Enable netconsole IPv6 link local address
There is no reason to discard using source link local address when
remote netconsole IPv6 address is set to be link local one.

The patch allows administrators to use IPv6 netconsole without
explicitly configuring source address:

    netconsole=@/,@fe80::5054:ff:fe2f:6012/

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:07:10 -08:00
Alexey Kodanev
e22d0bfa09 ipv6: properly check return value in inet6_dump_all()
Make sure we call fib6_dump_end() if it happens that skb->len
is zero. rtnl_dump_all() can reset cb->args on the next loop
iteration there.

Fixes: 08e814c9e8 ("net/ipv6: Bail early if user only wants cloned entries")
Fixes: ae677bbb44 ("net: Don't return invalid table id error when dumping all families")
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:04:54 -08:00