Merge tag 'socfpga_defconfig_for_v3.19' of git://git.rocketboards.org/linux-socfpga-next into fixes

Merge "SOCFPGA defconfig update" from Dinh Nguyen:

Remove extra un-used options in the socfpga_defconfig by doing
"make savedefconfig". Along with this commit, add the configs to enable
support for most filesystems, add regulator and SRAM support, and time
stamps on printk().

* tag 'socfpga_defconfig_for_v3.19' of git://git.rocketboards.org/linux-socfpga-next:
  ARM: socfpga_defconfig: Update defconfig for SoCFPGA

Signed-off-by: Olof Johansson <olof@lixom.net>
ARM: omap2plus_defconfig: Fix bloat caused by having ipv6 built-in

Commit  673ce00c5d6c (ARM: omap2plus_defconfig: Add support for
distros with systemd) caused considerable bloat as noted by
Paul Walmsley <paul@pwsan.com>.

Let's fix this issue by making what we can into loadable modules
for the systemd options. That's only IPV6 and AUTOFS4_FS it
seems, and IPv6 defaults to a loadable module.

Reported-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
btrfs: use macro accessors in superblock validation checks

The initial patch c926093ec516f5d316 (btrfs: add more superblock checks)
did not properly use the macro accessors that wrap endianness and the
code would not work correctly on big endian machines.

Reported-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
Btrfs: fix invalid leaf slot access in btrfs_lookup_extent()

If we couldn't find our extent item, we accessed the current slot
(path->slots[0]) to check if it corresponds to an equivalent skinny
metadata item. However this slot could be beyond our last item in the
leaf (i.e. path->slots[0] >= btrfs_header_nritems(leaf)), in which case
we shouldn't process it.

Since btrfs_lookup_extent() is only used to find extent items for data
extents, fix this by removing completely the logic that looks up for an
equivalent skinny metadata item, since it can not exist.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Btrfs: properly clean up btrfs_end_io_wq_cache

In one of Dave's cleanup commits he forgot to call btrfs_end_io_wq_exit on
unload, which makes us unable to unload and then re-load the btrfs module.  This
fixes the problem.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
netfilter: nft_compat: fix wrong target lookup in nft_target_select_ops()

The code looks for an already loaded target, and the correct list to search
is nft_target_list, not nft_match_list.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Merge tag 'regulator-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A couple of fixes for v3.18, one fix for an incorrect voltage to
  register mapping in the rk808 driver and a fix for a build failure in
  some SH defconfigs"

* tag 'regulator-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: Include err.h from consumer.h to fix build failure
  regulator: rk808: Fix min_uV for DCDC1 & DCDC2
Merge tag 'spi-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "Quite a few driver fixes in here, including some fairly substantial
  ones for the recently added Rockchip driver, plus a fix for spidev to
  more reliably support bidirectional transfers which is fairly large
  but basically mechanical.

  It's a bit more code than I'd like but all fixes"

* tag 'spi-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: orion: fix potential NULL pointer de-reference
  spi/rockchip: spi controller must be disabled in tx callback too
  spi/rockchip: fix bug that cause spi transfer timed out in DMA duplex mode
  spi/rockchip: fix bug that case spi can't go as fast as slave request
  spi: pl022: Fix incorrect dma_unmap_sg
  spi: spidev: Use separate TX and RX bounce buffers
  spi: dw: Initialize of_node to discover DT node children
Merge tag 'edac_fixes_for_3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC fixes from Borislav Petkov:
 "Correct severity of reported errors in several EDAC drivers.  From
  Jason Baron"

* tag 'edac_fixes_for_3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  e7xxx_edac: Report CE events properly
  cpc925_edac: Report UE events properly
  i82860_edac: Report CE events properly
  i3200_edac: Report CE events properly
Merge tag 'media/v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "A series of driver fixes:
   - a few compilation fixes with randconfigs
   - one potential compilation breakage on userspace due to the usage of
     a gcc extension
   - several warnings fixed
   - some other random driver fixes"

* tag 'media/v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (22 commits)
  [media] s5p-jpeg: Avoid -Wuninitialized warning in s5p_jpeg_parse_hdr
  [media] s5p-fimc: Only build suspend/resume for PM
  [media] s5p-jpeg: Only build suspend/resume for PM
  [media] Remove references to non-existent PLAT_S5P symbol
  [media] videobuf-dma-contig: set vm_pgoff to be zero to pass the sanity check in vm_iomap_memory()
  [media] tw68: remove bogus I2C_ALGOBIT dependency
  [media] usbvision-video: two use after frees
  [media] tw68: remove deprecated IRQF_DISABLED
  [media] xc5000: use after free in release()
  [media] em28xx-input: NULL dereference on error
  [media] wl128x: fix fmdbg compiler warning
  Revert "[media] v4l2-dv-timings: fix a sparse warning"
  [media] hackrf: harmless off by one in debug code
  [media] cx23885: initialize config structs for T9580
  [media] v4l: uvcvideo: Fix buffer completion size check
  [media] vivid: fix buffer overrun
  [media] saa7146: Create a device name before it's used
  [media] em28xx: fix uninitialized variable warning
  [media] vivid: fix Kconfig FB dependency
  [media] anysee: make sure loading modules is const
  ...
cpufreq: cpufreq-dt: Restore default cpumask_setall(policy->cpus)

Commit 34e5a5273d6aa0ee ("cpufreq: cpufreq-dt: extend with
platform_data") changed cpufreq_init() to only call
cpumask_setall(policy->cpus) if the platform data indicates that all
CPUs share the same clock. Before, cpufreq_generic_init() did this
unconditionally.

This causes a crash on r8a7791/koelsch when resuming from s2ram:

    Enabling non-boot CPUs ...
    CPU1: Booted secondary processor
    Unable to handle kernel NULL pointer dereference at virtual address 0000003c
    pgd = ee71f980
    [0000003c] *pgd=6eeb6003, *pmd=6e0e9003, *pte=00000000
    Internal error: Oops: a07 [#1] SMP ARM
    Modules linked in:
    CPU: 0 PID: 1397 Comm: s2ram Tainted: G        W      3.18.0-rc2-koelsch-00762-g7eed2a4e61d2d978 #581
    task: ee6b76c0 ti: ee7f0000 task.ti: ee7f0000
    PC is at __cpufreq_add_dev.isra.24+0x24c/0x77c
    LR is at __cpufreq_add_dev.isra.24+0x244/0x77c
    pc : [<c029e084>]    lr : [<c029e07c>]    psr: 60000153
    sp : ee7f1d48  ip : ee7f1d48  fp : ee7f1d84
    r10: c04e8448  r9 : 00000000  r8 : 00000001
    r7 : c054a8c4  r6 : 00000001  r5 : 00000001  r4 : 00000000
    r3 : 00000000  r2 : 00000000  r1 : 20000153  r0 : c054a950
    Flags: nZCv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  Segment user
    Control: 30c5307d  Table: 6e71f980  DAC: fffffffd
    Process s2ram (pid: 1397, stack limit = 0xee7f0240)

    ...

    Backtrace:
    [<c029de38>] (__cpufreq_add_dev.isra.24) from [<c029e620>] (cpufreq_cpu_callback+0x6c/0x74)
     r10:eec75240 r9:c04e8448 r8:c04ef3a0 r7:00000001 r6:00000012 r5:00000000
     r4:00000012
    [<c029e5b4>] (cpufreq_cpu_callback) from [<c003f20c>] (notifier_call_chain+0x48/0x70)
     r4:ffffffdd r3:c029e5b4
    [<c003f1c4>] (notifier_call_chain) from [<c003f2cc>] (__raw_notifier_call_chain+0x1c/0x24)
     r8:00000001 r7:00000010 r6:00000000 r5:00000000 r4:00000012 r3:ffffffff
    [<c003f2b0>] (__raw_notifier_call_chain) from [<c0026a00>] (__cpu_notify+0x34/0x50)
    [<c00269cc>] (__cpu_notify) from [<c0026a34>] (cpu_notify+0x18/0x1c)
     r4:00000001
    [<c0026a1c>] (cpu_notify) from [<c0026c44>] (_cpu_up+0x108/0x144)
    [<c0026b3c>] (_cpu_up) from [<c0381c68>] (enable_nonboot_cpus+0x68/0xb8)
     r10:00000000 r9:c04e8ee6 r8:00000000 r7:00000003 r6:c04e8528 r5:c0506248
     r4:00000001
    [<c0381c00>] (enable_nonboot_cpus) from [<c0059038>] (suspend_devices_and_enter+0x29c/0x3e8)
     r6:c0506e70 r5:00000000 r4:00000000 r3:60000153

Restore the old default of calling cpumask_setall(policy->cpus) if no
platform data is available to fix this.

Fixes: 34e5a5273d6aa0ee (cpufreq: cpufreq-dt: extend with platform_data)
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf

Pablo Neira Ayuso says:

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

The following patchset contains Netfilter fixes for your net tree,
they are:

1) Allow to recycle a TCP port in conntrack when the change role from
   server to client, from Marcelo Leitner.

2) Fix possible off by one access in ip_set_nfnl_get_byindex(), patch
   from Dan Carpenter.

3) alloc_percpu returns NULL on error, no need for IS_ERR() in nf_tables
   chain statistic updates. From Sabrina Dubroca.

4) Don't compile ip options in bridge netfilter, this mangles the packet
   and bridge should not alter layer >= 3 headers when forwarding packets.
   Patch from Herbert Xu and tested by Florian Westphal.

5) Account the final NLMSG_DONE message when calculating the size of the
   nflog netlink batches. Patch from Florian Westphal.

6) Fix a possible netlink attribute length overflow with large packets.
   Again from Florian Westphal.

7) Release the skbuff if nfnetlink_log fails to put the final
   NLMSG_DONE message. This fixes a leak on error. This shouldn't ever
   happen though, otherwise this means we miscalculate the netlink batch
   size, so spot a warning if this ever happens so we can track down the
   problem. This patch from Houcheng Lin.

8) Look at the right list when recycling targets in the nft_compat,
   patch from Arturo Borrero.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
cxgb4 : Improve handling of DCB negotiation or loss thereof

Clear out any DCB apps we might have added to kernel table when we lose DCB
sync (or IEEE equivalent event). These were previously left behind and not
cleaned up correctly. IEEE allows individual components to work independently,
 so improve check for IEEE completion by specifying individual components.

Fixes: 10b0046685ab ("cxgb4: IEEE fixes for DCBx state machine")

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
cxgb4 : Handle dcb enable correctly

Disabling DCBx in firmware automatically enables DCBx for control via host
lldp agents. Wait for an explicit setstate call from an lldp agents to enable
 DCBx instead.

Fixes: 76bcb31efc06 ("cxgb4 : Add DCBx support codebase and dcbnl_ops")

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge branch 'cxgb4-net'

Anish Bhatt says:

====================
cxgb4 : DCBx fixes for apps/host lldp agents

This patchset  contains some minor fixes for cxgb4 DCBx code. Chiefly, cxgb4
was not cleaning up any apps added to kernel app table when link was lost.
Disabling DCBx in firmware would automatically set DCBx state to host-managed
and enabled, we now wait for an explicit enable call from an lldp agent instead

First patch was originally sent to net-next, but considering it applies to
correcting behaviour of code already in net, I think it qualifies as a bug fix.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
bpf: split eBPF out of NET

introduce two configs:
- hidden CONFIG_BPF to select eBPF interpreter that classic socket filters
  depend on
- visible CONFIG_BPF_SYSCALL (default off) that tracing and sockets can use

that solves several problems:
- tracing and others that wish to use eBPF don't need to depend on NET.
  They can use BPF_SYSCALL to allow loading from userspace or select BPF
  to use it directly from kernel in NET-less configs.
- in 3.18 programs cannot be attached to events yet, so don't force it on
- when the rest of eBPF infra is there in 3.19+, it's still useful to
  switch it off to minimize kernel size

bloat-o-meter on x64 shows:
add/remove: 0/60 grow/shrink: 0/2 up/down: 0/-15601 (-15601)

tested with many different config combinations. Hopefully didn't miss anything.

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge branch 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-fixes

Three changes for the Armada DRM driver:
1. Add back the flags which tell the DRM core that we can do vblank.  This
   was removed in error during the recent restructuring, and came to light
   while trying textured Xv rendering.

2. Fixing a refcount leak with Xv overlay.

3. As per recent discussion, the drm_vblank_pre_modeset() calls can cause
   deadlock with other changes to generic code.  This change prevents those
   deadlocks by switching to the drm_crtc_vblank_*() calls instead.

* 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  drm/armada: convert to use vblank_on/off calls
  drm/armada: fix page_flip refcounting leak
  drm/armada: add IRQ support back
ASoC: fsl_asrc: Add reg_defaults for regmap to fix kernel dump

Kernel dump (WARN_ON) ocurred during system boot-up inside regmap_write():

------------[ cut here ]------------
WARNING: CPU: 0 PID: 47 at kernel/locking/lockdep.c:2744 lockdep_trace_alloc+0xe8/0x108()
DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
Modules linked in:
CPU: 0 PID: 47 Comm: kworker/u2:2 Not tainted 3.18.0-rc1-10245-gb75d289-dirty #56
Workqueue: deferwq deferred_probe_work_func
Backtrace:
[<80012294>] (dump_backtrace) from [<80012578>] (show_stack+0x18/0x1c)
 r6:8097c73c r5:8097c73c r4:00000000 r3:be33ba80
[<80012560>] (show_stack) from [<806aac48>] (dump_stack+0x8c/0xa4)
[<806aabbc>] (dump_stack) from [<8002a694>] (warn_slowpath_common+0x70/0x94)
 r6:80062838 r5:00000009 r4:bd827b30 r3:be33ba80
[<8002a624>] (warn_slowpath_common) from [<8002a6f0>] (warn_slowpath_fmt+0x38/0x40)
 r8:00000004 r7:00000001 r6:000080d0 r5:60000193 r4:bd826010
[<8002a6bc>] (warn_slowpath_fmt) from [<80062838>] (lockdep_trace_alloc+0xe8/0x108)
 r3:80831590 r2:8082e160
[<80062750>] (lockdep_trace_alloc) from [<800ea5dc>] (kmem_cache_alloc+0x28/0x134)
 r5:000080d0 r4:be001f00
[<800ea5b4>] (kmem_cache_alloc) from [<8038d72c>] (regcache_rbtree_write+0x15c/0x648)
 r10:00000000 r9:0000001c r8:00000004 r7:00000001 r6:00000000 r5:bd819a00
 r4:00000000 r3:811aea88
[<8038d5d0>] (regcache_rbtree_write) from [<8038c4d8>] (regcache_write+0x5c/0x64)
 r10:be3f9f88 r9:00000000 r8:00000004 r7:00000001 r6:00000000 r5:00000001
 r4:bd819a00
[<8038c47c>] (regcache_write) from [<8038b0dc>] (_regmap_raw_write+0x134/0x5f4)
 r6:be3f9f84 r5:00000001 r4:bd819a00 r3:00000001
[<8038afa8>] (_regmap_raw_write) from [<8038b610>] (_regmap_bus_raw_write+0x74/0x94)
 r10:00000000 r9:00000001 r8:be3fb080 r7:bd819a00 r6:00000001 r5:00000000
 r4:bd819a00
[<8038b59c>] (_regmap_bus_raw_write) from [<8038a8b4>] (_regmap_write+0x60/0x9c)
 r6:00000001 r5:00000000 r4:bd819a00 r3:8038b59c
[<8038a854>] (_regmap_write) from [<8038ba24>] (regmap_write+0x48/0x68)
 r7:bd81ad80 r6:00000001 r5:00000000 r4:bd819a00
[<8038b9dc>] (regmap_write) from [<80528f30>] (fsl_asrc_dai_probe+0x34/0x104)
 r6:bd888628 r5:be3fb080 r4:be3b4410 r3:be3b442c
------------[ dump end ]------------

=============================================================================
2741         /*
2742          * Oi! Can't be having __GFP_FS allocations with IRQs disabled.
2743          */
2744         if (DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags)))
2745                 return;
=============================================================================

By looking at 2744 line, we can get that it's because regcache_rbtree_write()
would call kmalloc() with GFP flag if it couldn't find an existing block to
insert nodes while this kmalloc() call is inside a spin_lock_irq_save pair,
i.e. IRQs disabled.

Even though this may be a bug that should be fixed, I still try to send this
patch as a quick fix (work around) since it does no harm to assign default
values of every registers when using regcache.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
ipvs: Avoid null-pointer deref in debug code

Use daddr instead of reaching into dest.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Gartrell <agartrell@fb.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
power: bq2415x_charger: Properly handle ENODEV from power_supply_get_by_phandle

The power_supply_get_by_phandle() on error returns ENODEV or NULL.
The driver later expects obtained pointer to power supply to be
valid or NULL. If it is not NULL then it dereferences it in
bq2415x_notifier_call() which would lead to dereferencing ENODEV-value
pointer.

Properly handle the power_supply_get_by_phandle() error case by
replacing error value with NULL. This indicates that usb charger
detection won't be used.

Fix also memory leak of 'name' if power_supply_get_by_phandle() fails
with NULL and probe should defer.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: faffd234cf85 ("bq2415x_charger: Add DT support")
Cc: <stable@vger.kernel.org>
[small fix regarding the missing ti,usb-charger-detection info message]
Signed-off-by: Sebastian Reichel <sre@kernel.org>