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Commit Graph

810577 Commits

Author SHA1 Message Date
Lubomir Rintel
70d0ba4cf7 USB: EHCI: ehci-mv: add MODULE_DEVICE_TABLE
This fixes autoloading the module by the OF compatible string.

Fixes: 813e18b18a ("USB: EHCI: ehci-mv: add DT support")
Cc: stable@vger.kernel.org
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 10:07:05 +01:00
Christian Lamparter
91f7d2e898 USB: leds: fix regression in usbport led trigger
The patch "usb: simplify usbport trigger" together with "leds: triggers:
add device attribute support" caused an regression for the usbport
trigger. it will no longer enumerate any active usb hub ports under the
"ports" directory in the sysfs class directory, if the usb host drivers
are fully initialized before the usbport trigger was loaded.

The reason is that the usbport driver tries to register the sysfs
entries during the activate() callback. And this will fail with -2 /
ENOENT because the patch "leds: triggers: add device attribute support"
made it so that the sysfs "ports" group was only being added after the
activate() callback succeeded.

This version of the patch reverts parts of the "usb: simplify usbport
trigger" patch and restores usbport trigger's functionality.

Fixes: 6f7b0bad88 ("usb: simplify usbport trigger")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 09:55:05 +01:00
Peter Chen
8ff396fe56 usb: chipidea: fix static checker warning for NULL pointer
During the static checker, "data->usbmisc_data" may be NULL.
Fix it by adding this pointer judgement before using.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 09:35:33 +01:00
Shuah Khan
a817c59e82 MAINTAINERS: email address update in MAINTAINERS entries
Update email address in MAINTAINERS entries.

Signed-off-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 09:35:33 +01:00
Greg Kroah-Hartman
fa5762fca8 USB: usbip: delete README file
The README file ni the drivers/usb/usbip/ directory is not needed
anymore, so just delete it.

Cc: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 09:35:33 +01:00
Greg Kroah-Hartman
575088f600 usb: fixes for v5.0-rc2
Few minor bug fixes on dwc3: adding a missing synchronize_irq() to
 prevent a very rare spurious interrupt during suspend; clearing
 needs_extra_trb flag to prevent it from being left erroneously set and
 confusing the driver when the request is recycled; initializing
 link_to a sensible default during init.
 
 Apart from these, one minor fix on dwc2 and another on f_sourcesink.c
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Merge tag 'fixes-for-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v5.0-rc2

Few minor bug fixes on dwc3: adding a missing synchronize_irq() to
prevent a very rare spurious interrupt during suspend; clearing
needs_extra_trb flag to prevent it from being left erroneously set and
confusing the driver when the request is recycled; initializing
link_to a sensible default during init.

Apart from these, one minor fix on dwc2 and another on f_sourcesink.c

* tag 'fixes-for-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  usb: dwc2: gadget: Fix Remote Wakeup interrupt bit clearing
  usb: gadget: Potential NULL dereference on allocation error
  usb: dwc3: gadget: Fix the uninitialized link_state when udc starts
  usb: dwc3: gadget: Clear req->needs_extra_trb flag on cleanup
  usb: dwc3: gadget: synchronize_irq dwc irq in suspend
2019-01-18 09:32:26 +01:00
Minas Harutyunyan
87b6d2c568 usb: dwc2: gadget: Fix Remote Wakeup interrupt bit clearing
To clear GINTSTS2_WKUP_ALERT_INT bit in GINTSTS2 register
require to write 1. This bit is implemented as "Write to clear".

Fixes: 187c5298a1 ("usb: dwc2: gadget: Add handler for WkupAlert interrupt")

Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2019-01-17 15:56:53 +02:00
Dan Carpenter
df28169e15 usb: gadget: Potential NULL dereference on allocation error
The source_sink_alloc_func() function is supposed to return error
pointers on error.  The function is called from usb_get_function() which
doesn't check for NULL returns so it would result in an Oops.

Of course, in the current kernel, small allocations always succeed so
this doesn't affect runtime.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2019-01-14 10:29:55 +02:00
Zeng Tao
88b1bb1f3b usb: dwc3: gadget: Fix the uninitialized link_state when udc starts
Currently the link_state is uninitialized and the default value is 0(U0)
before the first time we start the udc, and after we start the udc then
 stop the udc, the link_state will be undefined.
We may have the following warnings if we start the udc again with
an undefined link_state:

WARNING: CPU: 0 PID: 327 at drivers/usb/dwc3/gadget.c:294 dwc3_send_gadget_ep_cmd+0x304/0x308
dwc3 100e0000.hidwc3_0: wakeup failed --> -22
[...]
Call Trace:
[<c010f270>] (unwind_backtrace) from [<c010b3d8>] (show_stack+0x10/0x14)
[<c010b3d8>] (show_stack) from [<c034a4dc>] (dump_stack+0x84/0x98)
[<c034a4dc>] (dump_stack) from [<c0118000>] (__warn+0xe8/0x100)
[<c0118000>] (__warn) from [<c0118050>](warn_slowpath_fmt+0x38/0x48)
[<c0118050>] (warn_slowpath_fmt) from [<c0442ec0>](dwc3_send_gadget_ep_cmd+0x304/0x308)
[<c0442ec0>] (dwc3_send_gadget_ep_cmd) from [<c0445e68>](dwc3_ep0_start_trans+0x48/0xf4)
[<c0445e68>] (dwc3_ep0_start_trans) from [<c0446750>](dwc3_ep0_out_start+0x64/0x80)
[<c0446750>] (dwc3_ep0_out_start) from [<c04451c0>](__dwc3_gadget_start+0x1e0/0x278)
[<c04451c0>] (__dwc3_gadget_start) from [<c04452e0>](dwc3_gadget_start+0x88/0x10c)
[<c04452e0>] (dwc3_gadget_start) from [<c045ee54>](udc_bind_to_driver+0x88/0xbc)
[<c045ee54>] (udc_bind_to_driver) from [<c045f29c>](usb_gadget_probe_driver+0xf8/0x140)
[<c045f29c>] (usb_gadget_probe_driver) from [<bf005424>](gadget_dev_desc_UDC_store+0xac/0xc4 [libcomposite])
[<bf005424>] (gadget_dev_desc_UDC_store [libcomposite]) from[<c023d8e0>] (configfs_write_file+0xd4/0x160)
[<c023d8e0>] (configfs_write_file) from [<c01d51e8>] (__vfs_write+0x1c/0x114)
[<c01d51e8>] (__vfs_write) from [<c01d5ff4>] (vfs_write+0xa4/0x168)
[<c01d5ff4>] (vfs_write) from [<c01d6d40>] (SyS_write+0x3c/0x90)
[<c01d6d40>] (SyS_write) from [<c0107400>] (ret_fast_syscall+0x0/0x3c)

Signed-off-by: Zeng Tao <prime.zeng@hisilicon.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2019-01-14 10:29:55 +02:00
Jack Pham
bd6742249b usb: dwc3: gadget: Clear req->needs_extra_trb flag on cleanup
OUT endpoint requests may somtimes have this flag set when
preparing to be submitted to HW indicating that there is an
additional TRB chained to the request for alignment purposes.
If that request is removed before the controller can execute the
transfer (e.g. ep_dequeue/ep_disable), the request will not go
through the dwc3_gadget_ep_cleanup_completed_request() handler
and will not have its needs_extra_trb flag cleared when
dwc3_gadget_giveback() is called.  This same request could be
later requeued for a new transfer that does not require an
extra TRB and if it is successfully completed, the cleanup
and TRB reclamation will incorrectly process the additional TRB
which belongs to the next request, and incorrectly advances the
TRB dequeue pointer, thereby messing up calculation of the next
requeust's actual/remaining count when it completes.

The right thing to do here is to ensure that the flag is cleared
before it is given back to the function driver.  A good place
to do that is in dwc3_gadget_del_and_unmap_request().

Fixes: c6267a5163 ("usb: dwc3: gadget: align transfers to wMaxPacketSize")
Cc: stable@vger.kernel.org
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2019-01-14 10:29:55 +02:00
Bo He
01c10880d2 usb: dwc3: gadget: synchronize_irq dwc irq in suspend
We see dwc3 endpoint stopped by unwanted irq during
suspend resume test, which is caused dwc3 ep can't be started
with error "No Resource".

Here, add synchronize_irq before suspend to sync the
pending IRQ handlers complete.

Signed-off-by: Bo He <bo.he@intel.com>
Signed-off-by: Yu Wang <yu.y.wang@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2019-01-14 10:29:42 +02:00
Linus Torvalds
1c7fc5cbc3 Linux 5.0-rc2 2019-01-14 10:41:12 +12:00
Jonathan Neuschäfer
b7285b4253 kernel/sys.c: Clarify that UNAME26 does not generate unique versions anymore
UNAME26 is a mechanism to report Linux's version as 2.6.x, for
compatibility with old/broken software.  Due to the way it is
implemented, it would have to be updated after 5.0, to keep the
resulting versions unique.  Linus Torvalds argued:

 "Do we actually need this?

  I'd rather let it bitrot, and just let it return random versions. It
  will just start again at 2.4.60, won't it?

  Anybody who uses UNAME26 for a 5.x kernel might as well think it's
  still 4.x. The user space is so old that it can't possibly care about
  differences between 4.x and 5.x, can it?

  The only thing that matters is that it shows "2.4.<largeenough>",
  which it will do regardless"

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-14 10:38:03 +12:00
Linus Torvalds
dbc3c09b81 ARM: SoC fixes
A bigger batch than I anticipated this week, for two reasons:
 
  - Some fallout on Davinci from board file -> DTB conversion, that also
  includes a few longer-standing fixes (i.e. not recent regressions).
 
  - drivers/reset material that has been in linux-next for a while, but
  didn't get sent to us until now for a variety of reasons (maintainer out
  sick, holidays, etc). There's a functional dependency in there such that
  one platform (Altera's SoCFPGA) won't boot without one of the patches;
  instead of reverting the patch that got merged, I looked at this set
  and decided it was small enough that I'll pick it up anyway. If you
  disagree I can revisit with a smaller set.
 
 That being said, there's also a handful of the usual stuff:
 
  - Fix for a crash on Armada 7K/8K when the kernel touches PSCI-reserved
  memory
  - Fix for PCIe reset on Macchiatobin (Armada 8K development board, what
  this email is sent from in fact :)
  - Enable a few new-merged modules for Amlogic in arm64 defconfig
  - Error path fixes on Integrator
  - Build fix for Renesas and Qualcomm
  - Initialization fix for Renesas RZ/G2E
 
  + A few more fixlets.
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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 bigger batch than I anticipated this week, for two reasons:

   - Some fallout on Davinci from board file -> DTB conversion, that
     also includes a few longer-standing fixes (i.e. not recent
     regressions).

   - drivers/reset material that has been in linux-next for a while, but
     didn't get sent to us until now for a variety of reasons
     (maintainer out sick, holidays, etc). There's a functional
     dependency in there such that one platform (Altera's SoCFPGA) won't
     boot without one of the patches; instead of reverting the patch
     that got merged, I looked at this set and decided it was small
     enough that I'll pick it up anyway. If you disagree I can revisit
     with a smaller set.

  That being said, there's also a handful of the usual stuff:

   - Fix for a crash on Armada 7K/8K when the kernel touches
     PSCI-reserved memory

   - Fix for PCIe reset on Macchiatobin (Armada 8K development board,
     what this email is sent from in fact :)

   - Enable a few new-merged modules for Amlogic in arm64 defconfig

   - Error path fixes on Integrator

   - Build fix for Renesas and Qualcomm

   - Initialization fix for Renesas RZ/G2E

  .. plus a few more fixlets"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
  ARM: integrator: impd1: use struct_size() in devm_kzalloc()
  qcom-scm: Include <linux/err.h> header
  gpio: pl061: handle failed allocations
  ARM: dts: kirkwood: Fix polarity of GPIO fan lines
  arm64: dts: marvell: mcbin: fix PCIe reset signal
  arm64: dts: marvell: armada-ap806: reserve PSCI area
  ARM: dts: da850-lcdk: Correct the sound card name
  ARM: dts: da850-lcdk: Correct the audio codec regulators
  ARM: dts: da850-evm: Correct the sound card name
  ARM: dts: da850-evm: Correct the audio codec regulators
  ARM: davinci: omapl138-hawk: fix label names in GPIO lookup entries
  ARM: davinci: dm644x-evm: fix label names in GPIO lookup entries
  ARM: davinci: dm355-evm: fix label names in GPIO lookup entries
  ARM: davinci: da850-evm: fix label names in GPIO lookup entries
  ARM: davinci: da830-evm: fix label names in GPIO lookup entries
  arm64: defconfig: enable modules for amlogic s400 sound card
  reset: uniphier-glue: Add AHCI reset control support in glue layer
  dt-bindings: reset: uniphier: Add AHCI core reset description
  reset: uniphier-usb3: Rename to reset-uniphier-glue
  dt-bindings: reset: uniphier: Replace the expression of USB3 with generic peripherals
  ...
2019-01-14 10:34:14 +12:00
Linus Torvalds
6b529fb0a3 for-5.0-rc1-tag
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Merge tag 'for-5.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - two regression fixes in clone/dedupe ioctls, the generic check
   callback needs to lock extents properly and wait for io to avoid
   problems with writeback and relocation

 - fix deadlock when using free space tree due to block group creation

 - a recently added check refuses a valid fileystem with seeding device,
   make that work again with a quickfix, proper solution needs more
   intrusive changes

* tag 'for-5.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: Use real device structure to verify dev extent
  Btrfs: fix deadlock when using free space tree due to block group creation
  Btrfs: fix race between reflink/dedupe and relocation
  Btrfs: fix race between cloning range ending at eof and writeback
2019-01-14 05:55:51 +12:00
Linus Torvalds
72d657dd21 Driver core fixes for 5.0-rc2
Here is one small sysfs change, and a documentation update for 5.0-rc2
 
 The sysfs change moves from using BUG_ON to WARN_ON, as discussed in an
 email thread on lkml while trying to track down another driver bug.
 sysfs should not be crashing and preventing people from seeing where
 they went wrong.  Now it properly recovers and warns the developer.
 
 The documentation update removes the use of BUS_ATTR() as the kernel is
 moving away from this to use the specific BUS_ATTR_RW() and friends
 instead.  There are pending patches in all of the different subsystems
 to remove the last users of this macro, but for now, don't advertise it
 should be used anymore to keep new ones from being introduced.
 
 Both have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here is one small sysfs change, and a documentation update for 5.0-rc2

  The sysfs change moves from using BUG_ON to WARN_ON, as discussed in
  an email thread on lkml while trying to track down another driver bug.
  sysfs should not be crashing and preventing people from seeing where
  they went wrong. Now it properly recovers and warns the developer.

  The documentation update removes the use of BUS_ATTR() as the kernel
  is moving away from this to use the specific BUS_ATTR_RW() and friends
  instead. There are pending patches in all of the different subsystems
  to remove the last users of this macro, but for now, don't advertise
  it should be used anymore to keep new ones from being introduced.

  Both have been in linux-next with no reported issues"

* tag 'driver-core-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  Documentation: driver core: remove use of BUS_ATTR
  sysfs: convert BUG_ON to WARN_ON
2019-01-14 05:51:08 +12:00
Linus Torvalds
f7c1038bc7 Staging driver fixes for 5.0-rc2
Here are some small staging driver fixes for some reported issues.
 
 One reverts a patch that was made to the rtl8723bs driver that turned
 out to not be needed at all as it was a bug in clang.  The others fix up
 some reported issues in the rtl8188eu driver and update the MAINTAINERS
 file to point to Larry for this driver so he can get the bug reports
 easier.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are some small staging driver fixes for some reported issues.

  One reverts a patch that was made to the rtl8723bs driver that turned
  out to not be needed at all as it was a bug in clang. The others fix
  up some reported issues in the rtl8188eu driver and update the
  MAINTAINERS file to point to Larry for this driver so he can get the
  bug reports easier.

  All have been in linux-next with no reported issues"

* tag 'staging-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  Revert "staging: rtl8723bs: Mark ACPI table declaration as used"
  staging: rtl8188eu: Fix module loading from tasklet for WEP encryption
  staging: rtl8188eu: Fix module loading from tasklet for CCMP encryption
  MAINTAINERS: Add entry for staging driver r8188eu
2019-01-14 05:49:35 +12:00
Linus Torvalds
437e878a6c tty/serial fixes for 5.0-rc2
Here are 2 tty and serial fixes for 5.0-rc2 that resolve some reported
 issues.
 
 The first is a simple serial driver fix for a regression that showed up
 in 5.0-rc1.  The second one resolves a number of reported issues with
 the recent tty locking fixes that went into 5.0-rc1.  Lots of people
 have tested the second one and say it resolves their issues.
 
 Both have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are 2 tty and serial fixes for 5.0-rc2 that resolve some reported
  issues.

  The first is a simple serial driver fix for a regression that showed
  up in 5.0-rc1. The second one resolves a number of reported issues
  with the recent tty locking fixes that went into 5.0-rc1. Lots of
  people have tested the second one and say it resolves their issues.

  Both have been in linux-next with no reported issues"

* tag 'tty-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: Don't hold ldisc lock in tty_reopen() if ldisc present
  serial: lantiq: Do not swap register read/writes
2019-01-14 05:47:48 +12:00
Linus Torvalds
1dd8a3f6c6 USB fixes for 5.0-rc2
Here are some small USB driver fixes and quirk updates for 5.0-rc2.
 
 The majority here are some quirks for some storage devices to get them
 to work properly.  There's also a fix here to resolve the reported
 issues with some audio devices that say they are UAC3 compliant, but
 really are not.
 
 And a fix up for the MAINTAINERS file to remove a dead url.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB driver fixes and quirk updates for 5.0-rc2.

  The majority here are some quirks for some storage devices to get them
  to work properly. There's also a fix here to resolve the reported
  issues with some audio devices that say they are UAC3 compliant, but
  really are not.

  And a fix up for the MAINTAINERS file to remove a dead url.

  All have been in linux-next with no reported issues"

* tag 'usb-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: storage: Remove outdated URL from MAINTAINERS
  USB: Add USB_QUIRK_DELAY_CTRL_MSG quirk for Corsair K70 RGB
  usbcore: Select only first configuration for non-UAC3 compliant devices
  USB: storage: add quirk for SMI SM3350
  USB: storage: don't insert sane sense for SPC3+ when bad sense specified
  usb: cdc-acm: send ZLP for Telit 3G Intel based modems
2019-01-14 05:45:28 +12:00
Linus Torvalds
0f9d140a56 a set of cifs/smb3 fixes, 4 for stable, most from Pavel. His patches fix an important set of crediting (flow control) problems, and also two problems in cifs_writepages, ddressing some large i/o and also compounding issues
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Merge tag '5.0-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "A set of cifs/smb3 fixes, 4 for stable, most from Pavel. His patches
  fix an important set of crediting (flow control) problems, and also
  two problems in cifs_writepages, ddressing some large i/o and also
  compounding issues"

* tag '5.0-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update internal module version number
  CIFS: Fix error paths in writeback code
  CIFS: Move credit processing to mid callbacks for SMB3
  CIFS: Fix credits calculation for cancelled requests
  cifs: Fix potential OOB access of lock element array
  cifs: Limit memory used by lock request calls to a page
  cifs: move large array from stack to heap
  CIFS: Do not hide EINTR after sending network packets
  CIFS: Fix credit computation for compounded requests
  CIFS: Do not set credits to 1 if the server didn't grant anything
  CIFS: Fix adjustment of credits for MTU requests
  cifs: Fix a tiny potential memory leak
  cifs: Fix a debug message
2019-01-14 05:43:40 +12:00
Olof Johansson
465612178b Late reset controller changes for v5.0
This adds missing deassert functionality to the ARC HSDK reset driver,
 fixes some indentation and grammar issues in the kernel docs, adds a
 helper to count the number of resets on a device for the non-DT case
 as well, adds an early reset driver for SoCFPGA and simple reset driver
 support for Stratix10, and generalizes the uniphier USB3 glue layer
 reset to also cover AHCI.
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Merge tag 'reset-for-5.0-rc2' of git://git.pengutronix.de/git/pza/linux into fixes

Late reset controller changes for v5.0

This adds missing deassert functionality to the ARC HSDK reset driver,
fixes some indentation and grammar issues in the kernel docs, adds a
helper to count the number of resets on a device for the non-DT case
as well, adds an early reset driver for SoCFPGA and simple reset driver
support for Stratix10, and generalizes the uniphier USB3 glue layer
reset to also cover AHCI.

* tag 'reset-for-5.0-rc2' of git://git.pengutronix.de/git/pza/linux:
  reset: uniphier-glue: Add AHCI reset control support in glue layer
  dt-bindings: reset: uniphier: Add AHCI core reset description
  reset: uniphier-usb3: Rename to reset-uniphier-glue
  dt-bindings: reset: uniphier: Replace the expression of USB3 with generic peripherals
  ARM: socfpga: dts: document "altr,stratix10-rst-mgr" binding
  reset: socfpga: add an early reset driver for SoCFPGA
  reset: fix null pointer dereference on dev by dev_name
  reset: Add reset_control_get_count()
  reset: Improve reset controller kernel docs
  ARC: HSDK: improve reset driver

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-01-12 22:06:54 -08:00
Olof Johansson
56acb3ef76 mvebu fixes for 5.0
They are all device tree fixes which also worth being in stable:
 
  - Reserve PSCI area on Armada 7K/8K preventing the kernel accessing
    this area and crashing while doing it.
 
  - Use correct PCIe reset signal on MACCHIATOBin  (Armada 8040 based)
 
  - Fix polarity of GPIO fan line D-Link DNS NASes(kikwood based)
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Merge tag 'mvebu-fixes-5.0-1' of git://git.infradead.org/linux-mvebu into fixes

mvebu fixes for 5.0

They are all device tree fixes which also worth being in stable:

 - Reserve PSCI area on Armada 7K/8K preventing the kernel accessing
   this area and crashing while doing it.

 - Use correct PCIe reset signal on MACCHIATOBin  (Armada 8040 based)

 - Fix polarity of GPIO fan line D-Link DNS NASes(kikwood based)

* tag 'mvebu-fixes-5.0-1' of git://git.infradead.org/linux-mvebu:
  ARM: dts: kirkwood: Fix polarity of GPIO fan lines
  arm64: dts: marvell: mcbin: fix PCIe reset signal
  arm64: dts: marvell: armada-ap806: reserve PSCI area

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-01-12 22:03:59 -08:00
Olof Johansson
2ec472edcd Fixes for the Integrator:
- Handle failed allocations in the IM/PC bus attachment.
 - Use struct_size() for allocation.
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Merge tag 'integrator-fixes-armsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into fixes

Fixes for the Integrator:
- Handle failed allocations in the IM/PC bus attachment.
- Use struct_size() for allocation.

* tag 'integrator-fixes-armsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
  ARM: integrator: impd1: use struct_size() in devm_kzalloc()
  gpio: pl061: handle failed allocations

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-01-12 22:03:18 -08:00
Olof Johansson
431a8b73de Amlogic DT fixes for v5.0-rc
- arm64: defconfig: enable modules for amlogic s400 sound card
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Merge tag 'amlogic-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into fixes

Amlogic DT fixes for v5.0-rc
- arm64: defconfig: enable modules for amlogic s400 sound card

* tag 'amlogic-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  arm64: defconfig: enable modules for amlogic s400 sound card

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-01-12 22:02:28 -08:00
Olof Johansson
f4f8aa6de3 Qualcomm Driver Fixes for 5.0-rc1
* Add required includes into qcom_scm.h
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Merge tag 'qcom-fixes-for-5.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into fixes

Qualcomm Driver Fixes for 5.0-rc1

* Add required includes into qcom_scm.h

* tag 'qcom-fixes-for-5.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  qcom-scm: Include <linux/err.h> header

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-01-12 22:01:49 -08:00
Olof Johansson
98a5f67311 This pull request fixes some more regressions on legacy
DaVinci board support due to GPIO driver clean-up introduced
 in v4.20 kernel. These are marked for stable.
 
 Also has fixes for some long standing Audio issues on DA850
 boards.
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Merge tag 'davinci-fixes-for-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes

This pull request fixes some more regressions on legacy
DaVinci board support due to GPIO driver clean-up introduced
in v4.20 kernel. These are marked for stable.

Also has fixes for some long standing Audio issues on DA850
boards.

* tag 'davinci-fixes-for-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: dts: da850-lcdk: Correct the sound card name
  ARM: dts: da850-lcdk: Correct the audio codec regulators
  ARM: dts: da850-evm: Correct the sound card name
  ARM: dts: da850-evm: Correct the audio codec regulators
  ARM: davinci: omapl138-hawk: fix label names in GPIO lookup entries
  ARM: davinci: dm644x-evm: fix label names in GPIO lookup entries
  ARM: davinci: dm355-evm: fix label names in GPIO lookup entries
  ARM: davinci: da850-evm: fix label names in GPIO lookup entries
  ARM: davinci: da830-evm: fix label names in GPIO lookup entries

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-01-12 22:00:36 -08:00
Olof Johansson
70bf439a94 Renesas ARM Based SoC Fixes for v5.0
Renesas SoCs:
 * Fix build regressions caused by move of Kconfig symbols
 
 RZ/G2E (r8a774c0) SoC:
 * Correct initialization order of 3DG-{A,B} in SYSC driver
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Merge tag 'renesas-fixes-for-v5.0' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Renesas ARM Based SoC Fixes for v5.0

Renesas SoCs:
* Fix build regressions caused by move of Kconfig symbols

RZ/G2E (r8a774c0) SoC:
* Correct initialization order of 3DG-{A,B} in SYSC driver

* tag 'renesas-fixes-for-v5.0' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  soc: renesas: r8a774c0-sysc: Fix initialization order of 3DG-{A,B}
  ARM: shmobile: fix build regressions

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-01-12 21:59:42 -08:00
John Hubbard
e170672040 phy: fix build breakage: add PHY_MODE_SATA
Commit 49e54187ae ("ata: libahci_platform: comply to PHY framework") uses
the PHY_MODE_SATA, but that enum had not yet been added. This caused a
build failure for me, with today's linux.git.

Also, there is a potentially conflicting (mis-named) PHY_MODE_SATA, hiding
in the Marvell Berlin SATA PHY driver.

Fix the build by:

    1) Renaming Marvell's defined value to a more scoped name,
       in order to avoid any potential conflicts: PHY_BERLIN_MODE_SATA.

    2) Adding the missing enum, which was going to be added anyway as part
       of [1].

[1] https://lkml.kernel.org/r/20190108163124.6409-3-miquel.raynal@bootlin.com

Fixes: 49e54187ae ("ata: libahci_platform: comply to PHY framework")

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Olof Johansson <olof@lixom.net>
Cc: Grzegorz Jaszczyk <jaz@semihalf.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-12 21:07:14 -08:00
Linus Torvalds
b8c3b8992f for-linus-20190112
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Merge tag 'for-linus-20190112' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe pull request from Christoph, with little fixes all over the map

 - Loop caching fix for offset/bs change (Jaegeuk Kim)

 - Block documentation tweaks (Jeff, Jon, Weiping, John)

 - null_blk zoned tweak (John)

 - ahch mvebu suspend/resume support. Should have gone into the merge
   window, but there was some confusion on which tree had it. (Miquel)

* tag 'for-linus-20190112' of git://git.kernel.dk/linux-block: (22 commits)
  ata: ahci: mvebu: request PHY suspend/resume for Armada 3700
  ata: ahci: mvebu: add Armada 3700 initialization needed for S2RAM
  ata: ahci: mvebu: do Armada 38x configuration only on relevant SoCs
  ata: ahci: mvebu: remove stale comment
  ata: libahci_platform: comply to PHY framework
  loop: drop caches if offset or block_size are changed
  block: fix kerneldoc comment for blk_attempt_plug_merge()
  nvme: don't initlialize ctrl->cntlid twice
  nvme: introduce NVME_QUIRK_IGNORE_DEV_SUBNQN
  nvme: pad fake subsys NQN vid and ssvid with zeros
  nvme-multipath: zero out ANA log buffer
  nvme-fabrics: unset write/poll queues for discovery controllers
  nvme-tcp: don't ask if controller is fabrics
  nvme-tcp: remove dead code
  nvme-pci: fix out of bounds access in nvme_cqe_pending
  nvme-pci: rerun irq setup on IO queue init errors
  nvme-pci: use the same attributes when freeing host_mem_desc_bufs.
  nvme-pci: fix the wrong setting of nr_maps
  block: doc: add slice_idle_us to bfq documentation
  block: clarify documentation for blk_{start|finish}_plug
  ...
2019-01-12 13:40:51 -08:00
Linus Torvalds
66c56cfa64 remove dma_zalloc_coherent
We've always had a weird situation around dma_zalloc_coherent.  To
 safely support mapping the allocations to userspace major architectures
 like x86 and arm have always zeroed allocations from dma_alloc_coherent,
 but a couple other architectures were missing that zeroing either always
 or in corner cases.  Then later we grew anothe dma_zalloc_coherent
 interface to explicitly request zeroing, but that just added __GFP_ZERO
 to the allocation flags, which for some allocators that didn't end
 up using the page allocator ended up being a no-op and still not
 zeroing the allocations.
 
 So for this merge window I fixed up all remaining architectures to zero
 the memory in dma_alloc_coherent, and made dma_zalloc_coherent a no-op
 wrapper around dma_alloc_coherent, which fixes all of the above issues.
 
 dma_zalloc_coherent is now pointless and can go away, and Luis helped
 me writing a cocchinelle script and patch series to kill it, which I
 think we should apply now just after -rc1 to finally settle these
 issue.
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Merge tag 'remove-dma_zalloc_coherent-5.0' of git://git.infradead.org/users/hch/dma-mapping

Pull dma_zalloc_coherent() removal from Christoph Hellwig:
 "We've always had a weird situation around dma_zalloc_coherent. To
  safely support mapping the allocations to userspace major
  architectures like x86 and arm have always zeroed allocations from
  dma_alloc_coherent, but a couple other architectures were missing that
  zeroing either always or in corner cases.

  Then later we grew anothe dma_zalloc_coherent interface to explicitly
  request zeroing, but that just added __GFP_ZERO to the allocation
  flags, which for some allocators that didn't end up using the page
  allocator ended up being a no-op and still not zeroing the
  allocations.

  So for this merge window I fixed up all remaining architectures to
  zero the memory in dma_alloc_coherent, and made dma_zalloc_coherent a
  no-op wrapper around dma_alloc_coherent, which fixes all of the above
  issues.

  dma_zalloc_coherent is now pointless and can go away, and Luis helped
  me writing a cocchinelle script and patch series to kill it, which I
  think we should apply now just after -rc1 to finally settle these
  issue"

* tag 'remove-dma_zalloc_coherent-5.0' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: remove dma_zalloc_coherent()
  cross-tree: phase out dma_zalloc_coherent() on headers
  cross-tree: phase out dma_zalloc_coherent()
2019-01-12 10:52:40 -08:00
Linus Torvalds
473348891c KVM fixes for 5.0-rc2
Minor fixes for new code, corner cases, and documentation.
 Patches are isolated and sufficiently described by the shortlog.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Radim Krčmář:
 "Minor fixes for new code, corner cases, and documentation"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  x86/kvm/nVMX: don't skip emulated instruction twice when vmptr address is not backed
  Documentation/virtual/kvm: Update URL for AMD SEV API specification
  KVM/VMX: Avoid return error when flush tlb successfully in the hv_remote_flush_tlb_with_range()
  kvm: sev: Fail KVM_SEV_INIT if already initialized
  KVM: validate userspace input in kvm_clear_dirty_log_protect()
  KVM: x86: Fix bit shifting in update_intel_pt_cfg
2019-01-12 10:39:43 -08:00
Linus Torvalds
7b5c8f5226 drm-fixes for 5.0-rc2, part 2
nouveau:
 one backlight, falcon register access, and a fan fix.
 
 i915:
 - Disable PSR for Apple panels
 - Broxton ERR_PTR error state fix
 - Kabylake VECS workaround fix
 - Unwind failure on pinning the gen7 ppgtt
 - GVT workload request allocation fix
 
 core:
 - Fix fb-helper to work correctly with SDL 1.2 bugs.
 - Fix lockdep warning in the atomic ioctl and setproperty.
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Merge tag 'drm-fixes-2019-01-11-1' of git://anongit.freedesktop.org/drm/drm

Pull more drm fixes from Daniel Vetter:
 "Dave sends out his pull, everybody remembers holidays are over :-)

  Since Dave's already in weekend mode and it was quite a few patches I
  figured better to apply all the pulls and forward them to you. Hence
  here 2nd part of bugfixes for -rc2.

  nouveau:
   - backlight fix
   - falcon register access fix
   - fan fix.

  i915:
   - Disable PSR for Apple panels
   - Broxton ERR_PTR error state fix
   - Kabylake VECS workaround fix
   - Unwind failure on pinning the gen7 ppgtt
   - GVT workload request allocation fix

  core:
   - Fix fb-helper to work correctly with SDL 1.2 bugs
   - Fix lockdep warning in the atomic ioctl and setproperty"

* tag 'drm-fixes-2019-01-11-1' of git://anongit.freedesktop.org/drm/drm:
  drm/nouveau/falcon: avoid touching registers if engine is off
  drm/nouveau: Don't disable polling in fallback mode
  drm/nouveau: register backlight on pascal and newer
  drm: Fix documentation generation for DP_DPCD_QUIRK_NO_PSR
  drm/i915: init per-engine WAs for all engines
  drm/i915: Unwind failure on pinning the gen7 ppgtt
  drm/i915: Skip the ERR_PTR error state
  drm/i915: Disable PSR in Apple panels
  gpu/drm: Fix lock held when returning to user space.
  drm/fb-helper: Ignore the value of fb_var_screeninfo.pixclock
  drm/fb-helper: Partially bring back workaround for bugs of SDL 1.2
  drm/i915/gvt: Fix workload request allocation before request add
2019-01-12 10:30:43 -08:00
Miquel Raynal
bde0b5c109 ata: ahci: mvebu: request PHY suspend/resume for Armada 3700
A feature has been added in the libahci driver: the possibility to set
a new flag in hpriv->flags to let the core handle PHY suspend/resume
automatically. Make use of this feature to make suspend to RAM work
with SATA drives on A3700.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-01-11 14:47:51 -07:00
Miquel Raynal
2f558bc3f3 ata: ahci: mvebu: add Armada 3700 initialization needed for S2RAM
A3700 comphy initialization is done in the firmware (TF-A). Looking at
the SATA PHY initialization routine, there is a comment about "vendor
specific" registers. Two registers are mentioned. They are not
initialized there in the firmware because they are AHCI related, while
the firmware at this location does only PHY configuration. The
solution to avoid doing such initialization is relying on U-Boot.

While this work at boot time, U-Boot is definitely not going to run
during a resume after suspending to RAM.

Two possible solutions were considered:
* Fixing the firmware.
* Fixing the kernel driver.

The first solution would take ages to propagate, while the second
solution is easy to implement as the driver as been a little bit
reworked to prepare for such platform configuration. Hence, this patch
adds an Armada 3700 configuration function to set these two registers
both at boot time (in the probe) and after a suspend (in the resume
path).

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-01-11 14:47:50 -07:00
Miquel Raynal
96dbcb40e4 ata: ahci: mvebu: do Armada 38x configuration only on relevant SoCs
At the beginning, only Armada 38x SoCs where supported by the
ahci_mvebu.c driver. Commit 15d3ce7b63 ("ata: ahci_mvebu: add
support for Armada 3700 variant") introduced Armada 3700 support. As
opposed to Armada 38x SoCs, the 3700 variants do not have to configure
mbus and the regret option. This patch took care of avoiding such
configuration when not needed in the probe function, but failed to do
the same in the resume path. While doing so looks harmless by
experience, let's clean the driver logic and avoid doing this useless
configuration with Armada 3700 SoCs.

Because the logic is very similar between these two places, it has
been decided to factorize this code and put it in a "Armada 38x
configuration function". This function is part of a new
(per-compatible) platform data structure, so that the addition of such
configuration function for Armada 3700 will be eased.

Fixes: 15d3ce7b63 ("ata: ahci_mvebu: add support for Armada 3700 variant")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-01-11 14:47:48 -07:00
Miquel Raynal
c9bc136791 ata: ahci: mvebu: remove stale comment
For Armada-38x (32-bit) SoCs, PM platform support has been added since:
commit 32f9494c9d ("ARM: mvebu: prepare pm-board.c for the
                      introduction of Armada 38x support")
commit 3cbd6a6ca8 ("ARM: mvebu: Add standby support")

For Armada 64-bit SoCs, like the A3700 also using this AHCI driver, PM
platform support has always existed.

There are even suspend/resume hooks in this driver since:
commit d6ecf15814 ("ata: ahci_mvebu: add suspend/resume support")

Remove the stale comment at the end of this driver stating that all
the above does not exist yet.

Fixes: d6ecf15814 ("ata: ahci_mvebu: add suspend/resume support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-01-11 14:47:47 -07:00
Miquel Raynal
49e54187ae ata: libahci_platform: comply to PHY framework
Current implementation of the libahci does not take into account the
new PHY framework. Correct the situation by adding a call to
phy_set_mode() before phy_power_on().

PHYs should also be handled at suspend/resume time. For this, call
ahci_platform_enable/disable_phys() at suspend/resume_host() time. These
calls are guarded by a HFLAG (AHCI_HFLAG_SUSPEND_PHYS) that the user of
the libahci driver must set manually in hpriv->flags at probe time. This
is to avoid breaking users that have not been tested with this change.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Suggested-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-01-11 14:47:45 -07:00
Linus Torvalds
4b3c31c8d4 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "I2C has one core and one driver bugfix for you"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: tegra: Fix Maximum transfer size
  i2c: dev: prevent adapter retries and timeout being set as minus value
2019-01-11 12:28:01 -08:00
Linus Torvalds
c3405d6899 arm64 fixes for -rc2
- Don't error in kexec_file_load if kaslr-seed is missing in device-tree
 
 - Fix incorrect argument type passed to iort_match_node_callback()
 
 - Fix IORT build failure when CONFIG_IOMMU_API=n
 
 - Fix kpti performance regression with new rodata default option
 
 - Typo fix
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Another handful of arm64 fixes here. Most of the complication comes
  from improving our kpti code to avoid lengthy pauses (30+ seconds)
  during boot when we rewrite the page tables. There are also a couple
  of IORT fixes that came in via Lorenzo.

  Summary:

   - Don't error in kexec_file_load if kaslr-seed is missing in
     device-tree

   - Fix incorrect argument type passed to iort_match_node_callback()

   - Fix IORT build failure when CONFIG_IOMMU_API=n

   - Fix kpti performance regression with new rodata default option

   - Typo fix"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: kexec_file: return successfully even if kaslr-seed doesn't exist
  ACPI/IORT: Fix rc_dma_get_range()
  arm64: kpti: Avoid rewriting early page tables when KASLR is enabled
  arm64: asm-prototypes: Fix fat-fingered typo in comment
  ACPI/IORT: Fix build when CONFIG_IOMMU_API=n
2019-01-11 12:25:40 -08:00
Linus Torvalds
f87092c433 A patch to allow setting abort_on_full and a fix for an old "rbd unmap"
edge case, marked for stable.
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Merge tag 'ceph-for-5.0-rc2' of git://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:
 "A patch to allow setting abort_on_full and a fix for an old "rbd
  unmap" edge case, marked for stable"

* tag 'ceph-for-5.0-rc2' of git://github.com/ceph/ceph-client:
  rbd: don't return 0 on unmap if RBD_DEV_FLAG_REMOVING is set
  ceph: use vmf_error() in ceph_filemap_fault()
  libceph: allow setting abort_on_full for rbd
2019-01-11 12:17:30 -08:00
Linus Torvalds
40a31da414 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling updates from Ingo Molnar:
 "Tooling changes only: fixes and a few stray improvements.

  Most of the diffstat is dominated by a PowerPC related fix of system
  call trace output beautification that allows us to (again) use the
  UAPI header version and sync up with the kernel's version of PowerPC
  system call names in the arch/powerpc/kernel/syscalls/syscall.tbl
  header"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
  tools headers powerpc: Remove unistd.h
  perf powerpc: Rework syscall table generation
  perf symbols: Add 'arch_cpu_idle' to the list of kernel idle symbols
  tools include uapi: Sync linux/if_link.h copy with the kernel sources
  tools include uapi: Sync linux/vhost.h with the kernel sources
  tools include uapi: Sync linux/fs.h copy with the kernel sources
  perf beauty: Switch from using uapi/linux/fs.h to uapi/linux/mount.h
  tools include uapi: Grab a copy of linux/mount.h
  perf top: Lift restriction on using callchains without "sym" in --sort
  tools lib traceevent: Remove tep_data_event_from_type() API
  tools lib traceevent: Rename tep_is_file_bigendian() to tep_file_bigendian()
  tools lib traceevent: Changed return logic of tep_register_event_handler() API
  tools lib traceevent: Changed return logic of trace_seq_printf() and trace_seq_vprintf() APIs
  tools lib traceevent: Rename struct cmdline to struct tep_cmdline
  tools lib traceevent: Initialize host_bigendian at tep_handle allocation
  tools lib traceevent: Introduce new libtracevent API: tep_override_comm()
  perf tests: Add a test for the ARM 32-bit [vectors] page
  perf tools: Make find_vdso_map() more modular
  perf trace: Fix alignment for [continued] lines
  perf trace: Fix ')' placement in "interrupted" syscall lines
  ...
2019-01-11 09:44:05 -08:00
Vitaly Kuznetsov
826c1362e7 x86/kvm/nVMX: don't skip emulated instruction twice when vmptr address is not backed
Since commit 09abb5e3e5 ("KVM: nVMX: call kvm_skip_emulated_instruction
in nested_vmx_{fail,succeed}") nested_vmx_failValid() results in
kvm_skip_emulated_instruction() so doing it again in handle_vmptrld() when
vmptr address is not backed is wrong, we end up advancing RIP twice.

Fixes: fca91f6d60 ("kvm: nVMX: Set VM instruction error for VMPTRLD of unbacked page")
Reported-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2019-01-11 18:41:53 +01:00
Christophe de Dinechin
cf1754c2a1 Documentation/virtual/kvm: Update URL for AMD SEV API specification
The URL of [api-spec] in Documentation/virtual/kvm/amd-memory-encryption.rst
is no longer valid, replaced space with underscore.

Signed-off-by: Christophe de Dinechin <dinechin@redhat.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2019-01-11 18:38:07 +01:00
Lan Tianyu
b7c1c226f9 KVM/VMX: Avoid return error when flush tlb successfully in the hv_remote_flush_tlb_with_range()
The "ret" is initialized to be ENOTSUPP. The return value of
__hv_remote_flush_tlb_with_range() will be Or with "ret" when ept
table potiners are mismatched. This will cause return ENOTSUPP even if
flush tlb successfully. This patch is to fix the issue and set
"ret" to 0.

Fixes: a5c214dad1 ("KVM/VMX: Change hv flush logic when ept tables are mismatched.")
Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2019-01-11 18:38:07 +01:00
David Rientjes
3f14a89d11 kvm: sev: Fail KVM_SEV_INIT if already initialized
By code inspection, it was found that multiple calls to KVM_SEV_INIT
could deplete asid bits and overwrite kvm_sev_info's regions_list.

Multiple calls to KVM_SVM_INIT is not likely to occur with QEMU, but this
should likely be fixed anyway.

This code is serialized by kvm->lock.

Fixes: 1654efcbc4 ("KVM: SVM: Add KVM_SEV_INIT command")
Reported-by: Cfir Cohen <cfir@google.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2019-01-11 18:38:07 +01:00
Tomas Bortoli
98938aa8ed KVM: validate userspace input in kvm_clear_dirty_log_protect()
The function at issue does not fully validate the content of the
structure pointed by the log parameter, though its content has just been
copied from userspace and lacks validation. Fix that.

Moreover, change the type of n to unsigned long as that is the type
returned by kvm_dirty_bitmap_bytes().

Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com>
Reported-by: syzbot+028366e52c9ace67deb3@syzkaller.appspotmail.com
[Squashed the fix from Paolo. - Radim.]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2019-01-11 18:38:07 +01:00
Gustavo A. R. Silva
d14eff1bc5 KVM: x86: Fix bit shifting in update_intel_pt_cfg
ctl_bitmask in pt_desc is of type u64. When an integer like 0xf is
being left shifted more than 32 bits, the behavior is undefined.

Fix this by adding suffix ULL to integer 0xf.

Addresses-Coverity-ID: 1476095 ("Bad bit shift operation")
Fixes: 6c0f0bba85 ("KVM: x86: Introduce a function to initialize the PT configuration")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2019-01-11 18:38:07 +01:00
Linus Torvalds
e8af37f3f4 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "A 32-bit build fix, CONFIG_RETPOLINE fixes and rename CONFIG_RESCTRL
  to CONFIG_X86_RESCTRL"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
  x86/cache: Rename config option to CONFIG_X86_RESCTRL
  samples/seccomp: Fix 32-bit build
2019-01-11 09:07:19 -08:00
Linus Torvalds
8e1b295b69 ACPI fixes for 5.0-rc2
- Fix build failures with both CONFIG_NLS and CONFIG_PCI unset that
    can occur since ACPI can be built without PCI now (Sinan Kaya).
 
  - Clean up the handling of duplicate entries in power resource lists
    returned by _PRx evaluation to avoid triggering WARN_ON() on
    attempts to add duplicate symlinks in sysfs (Hans de Goede).
 
  - Fix issues with the TS current-source switching on systems using
    the xpower PMIC by avoiding to update unrelated bits in the TS
    pin-ctrl register and avoiding to unconditionally enable TS
    current-source on systems where it is not used (Hans de Goede).
 
  - Fix addresses in NUMA-related messages on 32-bit with PAE which
    can be truncated due to integer type conversions (Chao Fan).
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Merge tag 'acpi-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "Fix a build failure introduced recently, fix the xpower PMIC ACPI
  driver, clean up the handling of duplicate entries in _PRx power
  resource lists and fix addresses in NUMA-related messages on 32-bit
  with PAE.

  Specifics:

   - Fix build failures with both CONFIG_NLS and CONFIG_PCI unset that
     can occur since ACPI can be built without PCI now (Sinan Kaya).

   - Clean up the handling of duplicate entries in power resource lists
     returned by _PRx evaluation to avoid triggering WARN_ON() on
     attempts to add duplicate symlinks in sysfs (Hans de Goede).

   - Fix issues with the TS current-source switching on systems using
     the xpower PMIC by avoiding to update unrelated bits in the TS
     pin-ctrl register and avoiding to unconditionally enable TS
     current-source on systems where it is not used (Hans de Goede).

   - Fix addresses in NUMA-related messages on 32-bit with PAE which can
     be truncated due to integer type conversions (Chao Fan)"

* tag 'acpi-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / PMIC: xpower: Fix TS-pin current-source handling
  ACPI: NUMA: Use correct type for printing addresses on i386-PAE
  ACPI: power: Skip duplicate power resource references in _PRx
  ACPI: Fix build failure when CONFIG_NLS is set to 'n'
2019-01-11 09:04:36 -08:00
Linus Torvalds
f4f31fff32 Power management updates for 5.0-rc2
- Prevent integer overflows from occurring on 32-bit when
    converting milliseconds to nanoseconds in the runtime PM
    framework and update comments that still refer to jiffies
    in it (Vincent Guittot, Ladislav Michl).
 
  - Fix the SCMI cpufreq driver to always use the same frequency
    units for arch_set_freq_scale() and make the scale-invariant
    load tracking acutally work with this driver (Quentin Perret).
 
  - Fix freeing of dynamic OPPs in the SCPI and SCMI cpufreq drivers
    broken during the 4.20 defelopment cycle (Viresh Kumar).
 
  - Prevent the cpufreq core from attempting to return the current
    frequency of offline CPUs (Sudeep Holla).
 
  - Add devfreq suspend and resume hooks (missed previously) to the
    PM core to make the recently added system suspend and resume
    support in devfreq actually work (Lukasz Luba).
 
  - Update MAINTAINERS entries for cpufreq and cpuidle, mostly to add
    references to new/current documentation to them (Rafael Wysocki).
 
  - Fix a recently broken reference to cpuidle documentation (Otto
    Sabart).
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Merge tag 'pm-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These fix fallout after starting to use hrtimers in the runtime PM
  framework, fix a few cpufreq issues, fix a recently broken reference
  to cpuidle documentation, update MAINTAINERS entries for cpufreq and
  cpuidle and make the recently added system suspend and resume support
  in devfreq actually work.

  Specifics:

   - Prevent integer overflows from occurring on 32-bit when converting
     milliseconds to nanoseconds in the runtime PM framework and update
     comments that still refer to jiffies in it (Vincent Guittot,
     Ladislav Michl).

   - Fix the SCMI cpufreq driver to always use the same frequency units
     for arch_set_freq_scale() and make the scale-invariant load
     tracking acutally work with this driver (Quentin Perret).

   - Fix freeing of dynamic OPPs in the SCPI and SCMI cpufreq drivers
     broken during the 4.20 defelopment cycle (Viresh Kumar).

   - Prevent the cpufreq core from attempting to return the current
     frequency of offline CPUs (Sudeep Holla).

   - Add devfreq suspend and resume hooks (missed previously) to the PM
     core to make the recently added system suspend and resume support
     in devfreq actually work (Lukasz Luba).

   - Update MAINTAINERS entries for cpufreq and cpuidle, mostly to add
     references to new/current documentation to them (Rafael Wysocki).

   - Fix a recently broken reference to cpuidle documentation (Otto
     Sabart)"

* tag 'pm-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM-runtime: Fix autosuspend_delay on 32bits arch
  PM-runtime: Fix 'jiffies' in comments after switch to hrtimers
  cpufreq: scmi: Fix frequency invariance in slow path
  doc: trace: fix reference to cpuidle documentation file
  cpufreq: check if policy is inactive early in __cpufreq_get()
  cpufreq: scpi/scmi: Fix freeing of dynamic OPPs
  cpuidle / Documentation: Update cpuidle MAINTAINERS entry
  cpufreq / Documentation: Update cpufreq MAINTAINERS entry
  PM: sleep: call devfreq suspend/resume
2019-01-11 09:01:43 -08:00