linux-toradex.git/include, branch v4.9-rc5

Merge tag 'usb-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2016-11-13T18:10:46+00:00

Pull USB / PHY fixes from Greg KH:
 "Here are a number of small USB and PHY driver fixes for 4.9-rc5

  Nothing major, just small fixes for reported issues, all of these have
  been in linux-next for a while with no reported issues"

* tag 'usb-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: cdc-acm: fix TIOCMIWAIT
  cdc-acm: fix uninitialized variable
  drivers/usb: Skip auto handoff for TI and RENESAS usb controllers
  usb: musb: remove duplicated actions
  usb: musb: da8xx: Don't print phy error on -EPROBE_DEFER
  phy: sun4i: check PMU presence when poking unknown bit of pmu
  phy-rockchip-pcie: remove deassert of phy_rst from exit callback
  phy: da8xx-usb: rename the ohci device to ohci-da8xx
  phy: Add reset callback for not generic phy
  uwb: fix device reference leaks
  usb: gadget: u_ether: remove interrupt throttling
  usb: dwc3: st: add missing  include
  usb: dwc3: Fix error handling for core init

Merge tag 'acpi-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2016-11-12T01:02:01+00:00

Pull ACPI fix from Rafael Wysocki:
 "Fix a recent regression in the 8250_dw serial driver introduced by
  adding a quirk for the APM X-Gene SoC to it which uncovered an issue
  related to the handling of built-in device properties in the core ACPI
  device enumeration code (Heikki Krogerus)"

* tag 'acpi-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / platform: Add support for build-in properties

Merge branch 'device-properties'

2016-11-11T22:23:02+00:00

* device-properties:
  ACPI / platform: Add support for build-in properties

Merge branch 'akpm' (patches from Andrew)

2016-11-11T17:44:23+00:00

Merge misc fixes from Andrew Morton:
 "15 fixes"

* emailed patches from Andrew Morton :
  lib/stackdepot: export save/fetch stack for drivers
  mm: kmemleak: scan .data.ro_after_init
  memcg: prevent memcg caches to be both OFF_SLAB & OBJFREELIST_SLAB
  coredump: fix unfreezable coredumping task
  mm/filemap: don't allow partially uptodate page for pipes
  mm/hugetlb: fix huge page reservation leak in private mapping error paths
  ocfs2: fix not enough credit panic
  Revert "console: don't prefer first registered if DT specifies stdout-path"
  mm: hwpoison: fix thp split handling in memory_failure()
  swapfile: fix memory corruption via malformed swapfile
  mm/cma.c: check the max limit for cma allocation
  scripts/bloat-o-meter: fix SIGPIPE
  shmem: fix pageflags after swapping DMA32 object
  mm, frontswap: make sure allocated frontswap map is assigned
  mm: remove extra newline from allocation stall warning

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2016-11-11T17:19:01+00:00

Pull VFS fixes from Al Viro:
 "Christoph's and Jan's aio fixes, fixup for generic_file_splice_read
  (removal of pointless detritus that actually breaks it when used for
  gfs2 ->splice_read()) and fixup for generic_file_read_iter()
  interaction with ITER_PIPE destinations."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  splice: remove detritus from generic_file_splice_read()
  mm/filemap: don't allow partially uptodate page for pipes
  aio: fix freeze protection of aio writes
  fs: remove aio_run_iocb
  fs: remove the never implemented aio_fsync file operation
  aio: hold an extra file reference over AIO read/write operations

Merge tag 'ceph-for-4.9-rc5' of git://github.com/ceph/ceph-client

2016-11-11T17:17:10+00:00

Pull Ceph fixes from Ilya Dryomov:
 "Ceph's ->read_iter() implementation is incompatible with the new
  generic_file_splice_read() code that went into -rc1.  Switch to the
  less efficient default_file_splice_read() for now; the proper fix is
  being held for 4.10.

  We also have a fix for a 4.8 regression and a trival libceph fixup"

* tag 'ceph-for-4.9-rc5' of git://github.com/ceph/ceph-client:
  libceph: initialize last_linger_id with a large integer
  libceph: fix legacy layout decode with pool 0
  ceph: use default file splice read callback

mm: kmemleak: scan .data.ro_after_init

2016-11-11T16:12:37+00:00

Limit the number of kmemleak false positives by including
.data.ro_after_init in memory scanning.  To achieve this we need to add
symbols for start and end of the section to the linker scripts.

The problem was been uncovered by commit 56989f6d8568 ("genetlink: mark
families as __ro_after_init").

Link: http://lkml.kernel.org/r/1478274173-15218-1-git-send-email-jakub.kicinski@netronome.com
Reviewed-by: Catalin Marinas 
Signed-off-by: Jakub Kicinski 
Cc: Arnd Bergmann 
Cc: Cong Wang 
Cc: Johannes Berg 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Revert "console: don't prefer first registered if DT specifies stdout-path"

2016-11-11T16:12:37+00:00

This reverts commit 05fd007e4629 ("console: don't prefer first
registered if DT specifies stdout-path").

The reverted commit changes existing behavior on which many ARM boards
rely.  Many ARM small-board-computers, like e.g.  the Raspberry Pi have
both a video output and a serial console.  Depending on whether the user
is using the device as a more regular computer; or as a headless device
we need to have the console on either one or the other.

Many users rely on the kernel behavior of the console being present on
both outputs, before the reverted commit the console setup with no
console= kernel arguments on an ARM board which sets stdout-path in dt
would look like this:

  [root@localhost ~]# cat /proc/consoles
  ttyS0                -W- (EC p a)    4:64
  tty0                 -WU (E  p  )    4:1

Where as after the reverted commit, it looks like this:

  [root@localhost ~]# cat /proc/consoles
  ttyS0                -W- (EC p a)    4:64

This commit reverts commit 05fd007e4629 ("console: don't prefer first
registered if DT specifies stdout-path") restoring the original
behavior.

Fixes: 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path")
Link: http://lkml.kernel.org/r/20161104121135.4780-2-hdegoede@redhat.com
Signed-off-by: Hans de Goede 
Cc: Paul Burton 
Cc: Rob Herring 
Cc: Frank Rowand 
Cc: Thorsten Leemhuis 
Cc: Greg Kroah-Hartman 
Cc: Tejun Heo 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm, frontswap: make sure allocated frontswap map is assigned

2016-11-11T16:12:37+00:00

Christian Borntraeger reports:

With commit 8ea1d2a1985a ("mm, frontswap: convert frontswap_enabled to
static key") kmemleak complains about a memory leak in swapon

    unreferenced object 0x3e09ba56000 (size 32112640):
      comm "swapon", pid 7852, jiffies 4294968787 (age 1490.770s)
      hex dump (first 32 bytes):
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
      backtrace:
         __vmalloc_node_range+0x194/0x2d8
         vzalloc+0x58/0x68
         SyS_swapon+0xd60/0x12f8
         system_call+0xd6/0x270

Turns out kmemleak is right.  We now allocate the frontswap map
depending on the kernel config (and no longer on the enablement)

  swapfile.c:
  [...]
      if (IS_ENABLED(CONFIG_FRONTSWAP))
                frontswap_map = vzalloc(BITS_TO_LONGS(maxpages) * sizeof(long));

but later on this is passed along
  --> enable_swap_info(p, prio, swap_map, cluster_info, frontswap_map);

and ignored if frontswap is disabled
  --> frontswap_init(p->type, frontswap_map);

  static inline void frontswap_init(unsigned type, unsigned long *map)
  {
        if (frontswap_enabled())
                __frontswap_init(type, map);
  }

Thing is, that frontswap map is never freed.

The leakage is relatively not that bad, because swapon is an infrequent
and privileged operation.  However, if the first frontswap backend is
registered after a swap type has been already enabled, it will WARN_ON
in frontswap_register_ops() and frontswap will not be available for the
swap type.

Fix this by making sure the map is assigned by frontswap_init() as long
as CONFIG_FRONTSWAP is enabled.

Fixes: 8ea1d2a1985a ("mm, frontswap: convert frontswap_enabled to static key")
Link: http://lkml.kernel.org/r/20161026134220.2566-1-vbabka@suse.cz
Signed-off-by: Vlastimil Babka 
Reported-by: Christian Borntraeger 
Cc: Konrad Rzeszutek Wilk 
Cc: Boris Ostrovsky 
Cc: David Vrabel 
Cc: Juergen Gross 
Cc: "Kirill A. Shutemov" 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

libceph: initialize last_linger_id with a large integer

2016-11-10T19:13:08+00:00

osdc->last_linger_id is a counter for lreq->linger_id, which is used
for watch cookies.  Starting with a large integer should ease the task
of telling apart kernel and userspace clients.

Signed-off-by: Ilya Dryomov