cascardo/linux.git
8 years agotools/testing/nvdimm: mock ioremap_wt
Dan Williams [Fri, 10 Jul 2015 17:06:11 +0000 (11:06 -0600)]
tools/testing/nvdimm: mock ioremap_wt

In the 4.2-rc1 merge the default_memremap_pmem() implementation switched
from ioremap_nocache() to ioremap_wt().  Add it to the list of mocked
routines to restore the ability to run the unit tests.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
8 years agopmem: add maintainer for include/linux/pmem.h
Ross Zwisler [Fri, 10 Jul 2015 17:06:10 +0000 (11:06 -0600)]
pmem: add maintainer for include/linux/pmem.h

The file include/linux/pmem.h was recently created to hold the PMEM API,
and is logically part of the PMEM driver.  Add an entry for this file to
MAINTAINERS.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
8 years agoRevert "Input: synaptics - allocate 3 slots to keep stability in image sensors"
Dmitry Torokhov [Fri, 10 Jul 2015 17:11:07 +0000 (10:11 -0700)]
Revert "Input: synaptics - allocate 3 slots to keep stability in image sensors"

This reverts commit 63c4fda3c0bb841b1aad1298fc7fe94058fc79f8 as it
causes issues with detecting 3-finger taps.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100481
Cc: stable@vger.kernel.org
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
8 years agoarm64: entry32: remove pointless register assignment
Mark Rutland [Fri, 10 Jul 2015 14:46:32 +0000 (15:46 +0100)]
arm64: entry32: remove pointless register assignment

We currently set x27 in compat_sys_sigreturn_wrapper and
compat_sys_rt_sigreturn_wrapper, similarly to what we do with r8/why on
32-bit ARM, in an attempt to prevent sigreturns from being restarted.

However, on arm64 we have always used pt_regs::syscallno for syscall
restarting (for both native and compat tasks), and x27 is never
inspected again before being overwritten in kernel_exit.

This patch removes the pointless register assignments.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
8 years agoMIPS: O32: Use compat_sys_getsockopt.
Ralf Baechle [Thu, 9 Jul 2015 16:02:51 +0000 (18:02 +0200)]
MIPS: O32: Use compat_sys_getsockopt.

We were using the native syscall and that results in subtle breakage.

This is the same issue as fixed in 077d0e65618f27b2199d622e12ada6d8f3dbd862
(MIPS: N32: Use compat getsockopt syscall) but that commit did fix it only
for N32.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=100291
8 years agoMIPS: c-r4k: Extend way_string array
Paul Burton [Thu, 9 Jul 2015 09:40:41 +0000 (10:40 +0100)]
MIPS: c-r4k: Extend way_string array

The L2 cache in the I6400 core has 16 ways, so extend the way_string
array to take such caches into account.

[ralf@linux-mips.org: Other already supported CPUs are free to support
more than 8 ways of cache as well.]

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10640/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Pistachio: Support CDMM & Fast Debug Channel
James Hogan [Fri, 17 Apr 2015 09:44:16 +0000 (10:44 +0100)]
MIPS: Pistachio: Support CDMM & Fast Debug Channel

Implement the mips_cdmm_phys_base() platform callback to provide a
default Common Device Memory Map (CDMM) physical base address for the
Pistachio SoC. This allows the CDMM in each VPE to be configured and
probed for devices, such as the Fast Debug Channel (FDC).

The physical address chosen is just below the default CPC address, which
appears to also be unallocated.

The FDC IRQ is also usable on Pistachio, and is routed through the GIC,
so implement the get_c0_fdc_int() platform callback using
gic_get_c0_fdc_int(), so the FDC driver doesn't have to fall back to
polling.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: James Hartley <james.hartley@imgtec.com>
Cc: linux-mips@linux-mips.org
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Patchwork: http://patchwork.linux-mips.org/patch/9749/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Malta: Make GIC FDC IRQ workaround Malta specific
James Hogan [Fri, 17 Apr 2015 09:44:15 +0000 (10:44 +0100)]
MIPS: Malta: Make GIC FDC IRQ workaround Malta specific

Wider testing reveals that the Fast Debug Channel (FDC) interrupt is
routed through the GIC just fine on Pistachio SoC, even though it
contains interAptiv cores. Clearly the FDC interrupt routing problems
previously observed on interAptiv and proAptiv cores are specific to the
Malta FPGA bitstreams.

Move the workaround for interAptiv and proAptiv out of
gic_get_c0_fdc_int() in the GIC irqchip driver into Malta's
get_c0_fdc_int() platform callback, to allow the Pistachio SoC to use
the FDC interrupt.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: linux-mips@linux-mips.org
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Cc: James Hartley <james.hartley@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/9748/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: c-r4k: Fix cache flushing for MT cores
Markos Chandras [Fri, 10 Jul 2015 08:29:10 +0000 (09:29 +0100)]
MIPS: c-r4k: Fix cache flushing for MT cores

MT_SMP is not the only SMP option for MT cores. The MT_SMP option
allows more than one VPE per core to appear as a secondary CPU in the
system. Because of how CM works, it propagates the address-based
cache ops to the secondary cores but not the index-based ones.
Because of that, the code does not use IPIs to flush the L1 caches on
secondary cores because the CM would have done that already. However,
the CM functionality is independent of the type of SMP kernel so even in
non-MT kernels, IPIs are not necessary. As a result of which, we change
the conditional to depend on the CM presence. Moreover, since VPEs on
the same core share the same L1 caches, there is no need to send an
IPI on all of them so we calculate a suitable cpumask with only one
VPE per core.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: <stable@vger.kernel.org> # 3.15+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10654/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMerge tag 'omapdrm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba...
Dave Airlie [Fri, 10 Jul 2015 05:59:35 +0000 (15:59 +1000)]
Merge tag 'omapdrm-4.2-fixes' of git://git./linux/kernel/git/tomba/linux into drm-fixes

omapdrm fixes for 4.2

Small fixes for omapdrm, including:
* Fix packed 24 bit color formats
* Ensure the planes are inside the crtc
* Handle out-of-dma-memory error

* tag 'omapdrm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  drm/omap: replace ALIGN(PAGE_SIZE) by PAGE_ALIGN
  drm/omap: fix align_pitch() for 24 bits per pixel
  drm/omap: fix omap_gem_put_paddr() error handling
  drm/omap: fix omap_framebuffer_unpin() error handling
  drm/omap: increase DMM transaction timeout
  drm/omap: check that plane is inside crtc
  drm/omap: return error if dma_alloc_writecombine fails

8 years agoMerge tag 'drm-intel-fixes-2015-07-09' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Fri, 10 Jul 2015 05:58:43 +0000 (15:58 +1000)]
Merge tag 'drm-intel-fixes-2015-07-09' of git://anongit.freedesktop.org/drm-intel into drm-fixes

Pile of fixes for either 4.2 issues or cc: stable. This should fix the 2nd
kind of WARNING Linus's been seeing, please ask him to scream if that's
not the case.

* tag 'drm-intel-fixes-2015-07-09' of git://anongit.freedesktop.org/drm-intel:
  Revert "drm/i915: Allocate context objects from stolen"
  drm/i915: Declare the swizzling unknown for L-shaped configurations
  drm/i915: Use crtc_state->active in primary check_plane func
  drm/i915: Check crtc->active in intel_crtc_disable_planes
  drm/i915: Restore all GGTT VMAs on resume
  drm/i915/chv: fix HW readout of the port PLL fractional divider

8 years agoMerge tag 'drm-amdkfd-fixes-2015-07-09' of git://people.freedesktop.org/~gabbayo...
Dave Airlie [Fri, 10 Jul 2015 05:56:19 +0000 (15:56 +1000)]
Merge tag 'drm-amdkfd-fixes-2015-07-09' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes

A single fix so far for 4.2:
- checking a pointer is not null before using it

* tag 'drm-amdkfd-fixes-2015-07-09' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: validate pdd where it acquired first

8 years agoMerge branch 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Fri, 10 Jul 2015 05:55:48 +0000 (15:55 +1000)]
Merge branch 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

radeon and amdgpu fixes for 4.2.  All over the place:
- fix cursor corruption on resume and re-enable no VT switch on suspend
- vblank fixes
- fix gpuvm error messages
- misc other fixes

* 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: disable vce init on cayman (v2)
  drm/amdgpu: fix timeout calculation
  drm/radeon: check if BO_VA is set before adding it to the invalidation list
  drm/radeon: allways add the VM clear duplicate
  Revert "Revert "drm/radeon: dont switch vt on suspend""
  drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor()
  drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2)
  drm/radeon: Clean up reference counting and pinning of the cursor BOs
  drm/radeon: fix underflow in r600_cp_dispatch_texture()
  drm/radeon: default to 2048 MB GART size on SI+
  drm/radeon: fix HDP flushing
  drm/radeon: use RCU query for GEM_BUSY syscall
  drm/amdgpu: Handle irqs only based on irq ring, not irq status regs.
  drm/radeon: Handle irqs only based on irq ring, not irq status regs.

8 years agobridge: fix potential crash in __netdev_pick_tx()
Eric Dumazet [Thu, 9 Jul 2015 16:56:07 +0000 (18:56 +0200)]
bridge: fix potential crash in __netdev_pick_tx()

Commit c29390c6dfee ("xps: must clear sender_cpu before forwarding")
fixed an issue in normal forward path, caused by sender_cpu & napi_id
skb fields being an union.

Bridge is another point where skb can be forwarded, so we need
the same cure.

Bug triggers if packet was received on a NIC using skb_mark_napi_id()

Fixes: 2bd82484bb4c ("xps: fix xps for stacked devices")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Bob Liu <bob.liu@oracle.com>
Tested-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agotcp: do not export tcp_init_xmit_timers()
Eric Dumazet [Thu, 9 Jul 2015 16:01:40 +0000 (18:01 +0200)]
tcp: do not export tcp_init_xmit_timers()

After commit 900f65d361d3 ("tcp: move duplicate code from
tcp_v4_init_sock()/tcp_v6_init_sock()"), we no longer
need to export tcp_init_xmit_timers()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: axienet: Fix devm_ioremap_resource return value check
Krzysztof Kozlowski [Thu, 9 Jul 2015 13:21:20 +0000 (22:21 +0900)]
net: axienet: Fix devm_ioremap_resource return value check

Value returned by devm_ioremap_resource() was checked for non-NULL but
devm_ioremap_resource() returns IOMEM_ERR_PTR, not NULL. In case of
error this could lead to dereference of ERR_PTR.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Cc: <stable@vger.kernel.org>
Fixes: 46aa27df8853 ("net: axienet: Use devm_* calls")
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agobridge: mdb: fill state in br_mdb_notify
Nikolay Aleksandrov [Thu, 9 Jul 2015 10:11:10 +0000 (03:11 -0700)]
bridge: mdb: fill state in br_mdb_notify

Fill also the port group state when sending notifications.

Signed-off-by: Satish Ashok <sashok@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoroute: remove unsed variable in __mkroute_input
Masatake YAMATO [Thu, 9 Jul 2015 03:46:35 +0000 (12:46 +0900)]
route: remove unsed variable in __mkroute_input

flags local variable in __mkroute_input is not used as a variable.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoipv6: Nonlocal bind
Tom Herbert [Wed, 8 Jul 2015 23:58:22 +0000 (16:58 -0700)]
ipv6: Nonlocal bind

Add support to allow non-local binds similar to how this was done for IPv4.
Non-local binds are very useful in emulating the Internet in a box, etc.

This add the ip_nonlocal_bind sysctl under ipv6.

Testing:

Set up nonlocal binding and receive routing on a host, e.g.:

ip -6 rule add from ::/0 iif eth0 lookup 200
ip -6 route add local 2001:0:0:1::/64 dev lo proto kernel scope host table 200
sysctl -w net.ipv6.ip_nonlocal_bind=1

Set up routing to 2001:0:0:1::/64 on peer to go to first host

ping6 -I 2001:0:0:1::1 peer-address -- to verify

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxl: Check if afu is not null in cxl_slbia
Daniel Axtens [Thu, 9 Jul 2015 23:04:25 +0000 (09:04 +1000)]
cxl: Check if afu is not null in cxl_slbia

The pointer to an AFU in the adapter's list of AFUs can be null
if we're in the process of removing AFUs. The afu_list_lock
doesn't guard against this.

Say we have 2 slices, and we're in the process of removing cxl.
 - We remove the AFUs in order (see cxl_remove). In cxl_remove_afu
   for AFU 0, we take the lock, set adapter->afu[0] = NULL, and
   release the lock.
 - Then we get an slbia. In cxl_slbia we take the lock, and set
   afu = adapter->afu[0], which is NULL.
 - Therefore our attempt to check afu->enabled will blow up.

Therefore, check if afu is a null pointer before dereferencing it.

Cc: stable@vger.kernel.org
Signed-off-by: Daniel Axtens <dja@axtens.net>
Acked-by: Michael Neuling <mikey@neuling.org>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
8 years agoMerge tag 'omap-for-v4.2/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel...
Kevin Hilman [Thu, 9 Jul 2015 22:38:16 +0000 (15:38 -0700)]
Merge tag 'omap-for-v4.2/fixes-rc1' of git://git./linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v4.2-rc1" from Tony Lindgren:

Minor fixes for omaps against v4.2-rc1. Mostly just minor dts changes
except for a GPMC fix to not use names for probing devices. Also a
one liner clean-up to remove unecessary return from a void function.

The summary for the changes being:

- Fix probe for GPMC devices by reoving limitations based on device
  name

- Remove unnecessary return from a void function

- Revert beaglebone RTC sleep fix, we now have a better fix merged

- Add am4372 EMIF node to fix a warning

- Add am57xx-beagle-x15 power supply to fix USB2 if USB1 is disabled

- Disable rfbi for am4372 as it does not have a driver

* tag 'omap-for-v4.2/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am4372.dtsi: disable rfbi
  ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2
  ARM: dts: am4372: Add emif node
  Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep"
  ARM: OMAP2+: Remove unnessary return statement from the void function, omap2_show_dma_caps
  memory: omap-gpmc: Fix parsing of devices

8 years agoMerge branch 'tw_cleanups'
David S. Miller [Thu, 9 Jul 2015 22:12:21 +0000 (15:12 -0700)]
Merge branch 'tw_cleanups'

Eric Dumazet says:

====================
inet: timewait cleanups

Another round of patches to make tw handling simpler.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoinet: inet_twsk_deschedule factorization
Eric Dumazet [Wed, 8 Jul 2015 21:28:30 +0000 (14:28 -0700)]
inet: inet_twsk_deschedule factorization

inet_twsk_deschedule() calls are followed by inet_twsk_put().

Only particular case is in inet_twsk_purge() but there is no point
to defer the inet_twsk_put() after re-enabling BH.

Lets rename inet_twsk_deschedule() to inet_twsk_deschedule_put()
and move the inet_twsk_put() inside.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoinet: simplify timewait refcounting
Eric Dumazet [Wed, 8 Jul 2015 21:28:29 +0000 (14:28 -0700)]
inet: simplify timewait refcounting

timewait sockets have a complex refcounting logic.
Once we realize it should be similar to established and
syn_recv sockets, we can use sk_nulls_del_node_init_rcu()
and remove inet_twsk_unhash()

In particular, deferred inet_twsk_put() added in commit
13475a30b66cd ("tcp: connect() race with timewait reuse")
looks unecessary : When removing a timewait socket from
ehash or bhash, caller must own a reference on the socket
anyway.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoinet: remove BUG_ON() in twsk_destructor()
Eric Dumazet [Wed, 8 Jul 2015 21:28:28 +0000 (14:28 -0700)]
inet: remove BUG_ON() in twsk_destructor()

Kernel will crash the same if one of the pointer is NULL anyway.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge tag 'sunxi-late-for-4.2' of https://git.kernel.org/pub/scm/linux/kernel/git...
Kevin Hilman [Thu, 9 Jul 2015 22:08:44 +0000 (15:08 -0700)]
Merge tag 'sunxi-late-for-4.2' of https://git./linux/kernel/git/mripard/linux into fixes

Merge "Allwinner late changes for 4.2" from Maxime Ripard:

Allwinner late changes for 4.2

A bunch of defconfig changes, and some patches to make the Allwinner H3 and
A33 boot properly.

* tag 'sunxi-late-for-4.2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sunxi: Enable simplefb in the defconfig
  ARM: Remove deprecated symbol from defconfig files
  ARM: sunxi: Add Machine support for A33
  ARM: sunxi: Introduce Allwinner H3 support
  Documentation: sunxi: Update Allwinner SoC documentation

8 years agoipv6: use flag instead of u16 for hop in inet6_skb_parm
Florian Westphal [Wed, 8 Jul 2015 21:32:12 +0000 (23:32 +0200)]
ipv6: use flag instead of u16 for hop in inet6_skb_parm

Hop was always either 0 or sizeof(struct ipv6hdr).

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'pktgen-races'
David S. Miller [Thu, 9 Jul 2015 22:05:33 +0000 (15:05 -0700)]
Merge branch 'pktgen-races'

Oleg Nesterov says:

====================
net: pktgen: fix race between pktgen_thread_worker() and kthread_stop()

I am not familiar with this code and I have no idea how to test
these changes, so 2/2 comes as a separate change. 1/2 looks like
the obvious bugfix, and probably candidate for -stable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: pktgen: kill the "Wait for kthread_stop" code in pktgen_thread_worker()
Oleg Nesterov [Wed, 8 Jul 2015 19:42:13 +0000 (21:42 +0200)]
net: pktgen: kill the "Wait for kthread_stop" code in pktgen_thread_worker()

pktgen_thread_worker() doesn't need to wait for kthread_stop(), it
can simply exit. Just pktgen_create_thread() and pg_net_exit() should
do get_task_struct()/put_task_struct(). kthread_stop(dead_thread) is
fine.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: pktgen: fix race between pktgen_thread_worker() and kthread_stop()
Oleg Nesterov [Wed, 8 Jul 2015 19:42:11 +0000 (21:42 +0200)]
net: pktgen: fix race between pktgen_thread_worker() and kthread_stop()

pktgen_thread_worker() is obviously racy, kthread_stop() can come
between the kthread_should_stop() check and set_current_state().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Reported-by: Marcelo Leitner <mleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocdc_ncm: Add support for moving NDP to end of NCM frame
Enrico Mioso [Wed, 8 Jul 2015 11:05:57 +0000 (13:05 +0200)]
cdc_ncm: Add support for moving NDP to end of NCM frame

NCM specs are not actually mandating a specific position in the frame for
the NDP (Network Datagram Pointer). However, some Huawei devices will
ignore our aggregates if it is not placed after the datagrams it points
to. Add support for doing just this, in a per-device configurable way.
While at it, update NCM subdrivers, disabling this functionality in all of
them, except in huawei_cdc_ncm where it is enabled instead.
We aren't making any distinction between different Huawei NCM devices,
based on what the vendor driver does. Standard NCM devices are left
unaffected: if they are compliant, they should be always usable, still
stay on the safe side.

This change has been tested and working with a Huawei E3131 device (which
works regardless of NDP position), a Huawei E3531 (also working both
ways) and an E3372 (which mandates NDP to be after indexed datagrams).

V1->V2:
- corrected wrong NDP acronym definition
- fixed possible NULL pointer dereference
- patch cleanup
V2->V3:
- Properly account for the NDP size when writing new packets to SKB

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agodrivers: net: cpsw: fix disabling of tx interrupt in rx isr
Mugunthan V N [Wed, 8 Jul 2015 09:05:22 +0000 (14:35 +0530)]
drivers: net: cpsw: fix disabling of tx interrupt in rx isr

In commit 'c03abd84634d ("net: ethernet: cpsw: don't requests
IRQs we don't use")', common isr is split into tx and rx, but
in rx isr tx interrupt is also disabledi in cpsw_disable_irq().
So tx interrupts are not handled during rx interrupts and rx
napi completion and results in poor tx performance by 40Mbps.
Fixing by disabling only rx interrupt in rx isr.

Cc: Felipe Balbi <balbi@ti.com>
Cc: <stable@vger.kernel.org> # v4.0+
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: systemport: Use eth_hw_addr_random
Vaishali Thakkar [Wed, 8 Jul 2015 05:19:30 +0000 (10:49 +0530)]
net: systemport: Use eth_hw_addr_random

Use eth_hw_addr_random() instead of calling random_ether_addr().
Here, this change is setting addr_assign_type to NET_ADDR_RANDOM.

The Coccinelle semantic patch that performs this transformation
is as follows:

@@
identifier a,b;
@@

-random_ether_addr(a->b);
+eth_hw_addr_random(a);

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agodsa: mv88e6352/mv88e6xxx: Add support for Marvell 88E6320 and 88E6321
Aleksey S. Kazantsev [Wed, 8 Jul 2015 03:38:15 +0000 (20:38 -0700)]
dsa: mv88e6352/mv88e6xxx: Add support for Marvell 88E6320 and 88E6321

MV88E6320 and MV88E6321 are largely compatible to MV886352,
but are members of a different chip family.

Signed-off-by: Aleksey S. Kazantsev <ioctl@yandex.ru>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'tcp-in-slow-start'
David S. Miller [Thu, 9 Jul 2015 21:22:53 +0000 (14:22 -0700)]
Merge branch 'tcp-in-slow-start'

Yuchung Cheng says:

====================
tcp: fixes some congestion control corner cases

This patch series fixes corner cases of TCP congestion control.
First issue is to avoid continuing slow start when cwnd reaches ssthresh.
Second issue is incorrectly processing order of congestion state and
cwnd update when entering fast recovery or undoing cwnd.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agotcp: update congestion state first before raising cwnd
Yuchung Cheng [Thu, 9 Jul 2015 20:16:31 +0000 (13:16 -0700)]
tcp: update congestion state first before raising cwnd

The congestion state and cwnd can be updated in the wrong order.
For example, upon receiving a dubious ACK, we incorrectly raise
the cwnd first (tcp_may_raise_cwnd()/tcp_cong_avoid()) because
the state is still Open, then enter recovery state to reduce cwnd.

For another example, if the ACK indicates spurious timeout or
retransmits, we first revert the cwnd reduction and congestion
state back to Open state.  But we don't raise the cwnd even though
the ACK does not indicate any congestion.

To fix this problem we should first call tcp_fastretrans_alert() to
process the dubious ACK and update the congestion state, then call
tcp_may_raise_cwnd() that raises cwnd based on the current state.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agotcp: do not slow start when cwnd equals ssthresh
Yuchung Cheng [Thu, 9 Jul 2015 20:16:30 +0000 (13:16 -0700)]
tcp: do not slow start when cwnd equals ssthresh

In the original design slow start is only used to raise cwnd
when cwnd is stricly below ssthresh. It makes little sense
to slow start when cwnd == ssthresh: especially
when hystart has set ssthresh in the initial ramp, or after
recovery when cwnd resets to ssthresh. Not doing so will
also help reduce the buffer bloat slightly.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agotcp: add tcp_in_slow_start helper
Yuchung Cheng [Thu, 9 Jul 2015 20:16:29 +0000 (13:16 -0700)]
tcp: add tcp_in_slow_start helper

Add a helper to test the slow start condition in various congestion
control modules and other places. This is to prepare a slight improvement
in policy as to exactly when to slow start.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: skb_defer_rx_timestamp should check for phydev before setting up classify
Alexander Duyck [Thu, 9 Jul 2015 18:02:52 +0000 (11:02 -0700)]
net: skb_defer_rx_timestamp should check for phydev before setting up classify

This change makes it so that the call skb_defer_rx_timestamp will first
check for a phydev before going in and manipulating the skb->data and
skb->len values.  By doing this we can avoid unnecessary work on network
devices that don't support phydev.  As a result we reduce the total
instruction count needed to process this on most devices.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agotcp: v1 always send a quick ack when quickacks are enabled
Jon Maxwell [Wed, 8 Jul 2015 00:12:28 +0000 (10:12 +1000)]
tcp: v1 always send a quick ack when quickacks are enabled

V1 of this patch contains Eric Dumazet's suggestion to move the per
dst RTAX_QUICKACK check into tcp_in_quickack_mode(). Thanks Eric.

I ran some tests and after setting the "ip route change quickack 1"
knob there were still many delayed ACKs sent. This occured
because when icsk_ack.quick=0 the !icsk_ack.pingpong value is
subsequently ignored as tcp_in_quickack_mode() checks both these
values. The condition for a quick ack to trigger requires
that both icsk_ack.quick != 0 and icsk_ack.pingpong=0. Currently
only icsk_ack.pingpong is controlled by the knob. But the
icsk_ack.quick value changes dynamically depending on heuristics.
The crux of the matter is that delayed acks still cannot be entirely
disabled even with the RTAX_QUICKACK per dst knob enabled. This
patch ensures that a quick ack is always sent when the RTAX_QUICKACK
per dst knob is turned on.

The "ip route change quickack 1" knob was recently added to enable
quickacks. It was modeled around the TCP_QUICKACK setsockopt() option.
This issue is that even with "ip route change quickack 1" enabled
we still see delayed ACKs under some conditions. It would be nice
to be able to completely disable delayed ACKs.

Here is an example:

# netstat -s|grep dela
    3 delayed acks sent

For all routes enable the knob

# ip route change quickack 1

Generate some traffic across a slow link and we still see the delayed
acks.

# netstat -s|grep dela
    106 delayed acks sent
    1 delayed acks further delayed because of locked socket

The issue is that both the "ip route change quickack 1" knob and
the TCP_QUICKACK option set the icsk_ack.pingpong variable to 0.
However at the business end in the __tcp_ack_snd_check() routine,
tcp_in_quickack_mode() checks that both icsk_ack.quick != 0
and icsk_ack.pingpong=0 in order to trigger a quickack. As
icsk_ack.quick is determined by heuristics it can be 0. When
that occurs the icsk_ack.pingpong value is ignored and a delayed
ACK is sent regardless.

This patch moves the RTAX_QUICKACK per dst check into the
tcp_in_quickack_mode() routine which ensures that a quickack is
always sent when the quickack knob is enabled for that dst.

Signed-off-by: Jon Maxwell <jmaxwell37@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'hpfs-patches' (patches from Mikulas Patocka)
Linus Torvalds [Thu, 9 Jul 2015 20:35:39 +0000 (13:35 -0700)]
Merge branch 'hpfs-patches' (patches from Mikulas Patocka)

Merge hpfs updates from Mikulas Patocka.

Mainly fstrim support, with some minor other cleanups.

These were actually sent during the merge window, but I wanted to wait
for the FSTRIM compat handling cleanup before applying them.  Mikulas
sent that earlier today.

* emailed patches from Mikulas Patocka <mikulas@twibright.com>:
  hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead
  hpfs: kstrdup() out of memory handling
  hpfs: Remove unessary cast
  hpfs: add fstrim support

8 years agohpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead
Joe Perches [Fri, 27 Mar 2015 03:47:10 +0000 (20:47 -0700)]
hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead

Removing unnecessary static buffers is good.
Use the vsprintf %pV extension instead.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Cc: stable@vger.kernel.org # v2.6.36+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agohpfs: kstrdup() out of memory handling
Sanidhya Kashyap [Sat, 21 Mar 2015 16:57:50 +0000 (12:57 -0400)]
hpfs: kstrdup() out of memory handling

There is a possibility of nothing being allocated to the new_opts in
case of memory pressure, therefore return ENOMEM for such case.

Signed-off-by: Sanidhya Kashyap <sanidhya.gatech@gmail.com>
Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agohpfs: Remove unessary cast
Firo Yang [Thu, 23 Apr 2015 09:28:45 +0000 (17:28 +0800)]
hpfs: Remove unessary cast

Avoid a pointless kmem_cache_alloc() return value cast in
fs/hpfs/super.c::hpfs_alloc_inode()

Signed-off-by: Firo Yang <firogm@gmail.com>
Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agohpfs: add fstrim support
Mikulas Patocka [Sun, 28 Jun 2015 13:16:57 +0000 (15:16 +0200)]
hpfs: add fstrim support

This patch adds support for fstrim to the HPFS filesystem.

Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoi2c: Mark instantiated device nodes with OF_POPULATE
Pantelis Antoniou [Sat, 24 Jan 2015 07:16:29 +0000 (09:16 +0200)]
i2c: Mark instantiated device nodes with OF_POPULATE

Mark (and unmark) device nodes with the POPULATE flag as appropriate.
This is required to avoid multi probing when using I2C and device
overlays containing a mux.
This patch is also more careful with the release of the adapter device
which caused a deadlock with muxes, and does not break the build
on !OF since the node flag accessors are not defined then.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
8 years agoi2c: jz4780: Fix return value if probe fails
Axel Lin [Tue, 30 Jun 2015 03:41:58 +0000 (11:41 +0800)]
i2c: jz4780: Fix return value if probe fails

Current code returns 0 if fails to read clock-frequency DT property,
fix it. Also add checking return value of clk_prepare_enable and
propagate return value of devm_request_irq.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Thu, 9 Jul 2015 20:13:11 +0000 (13:13 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull Ceph fixes from Sage Weil:
 "There is a fix for CephFS and RBD when used within containers/namespaces,
   and a fix for the address learning the client is supposed to do when
  initially talking to the Ceph cluster.

  There are also two patches updating MAINTAINERS.  One breaks out the
  common Ceph code shared by fs/ceph and drivers/block/rbd.c into a
  separate entry with the appropriate maintainers listed.  The second
  adds a second reference to the github tree where the Ceph client
  development takes place (before it is pushed to korg and then to you).

  The goal here is to move closer to a situation where Ilya Dryomov or
  one of the other maintainers can push things to you if I am
  unavailable.  Ilya has done most of the work preparing branches for
  upstream recently; you should not be surprised to hear from him if I
  am trapped in some internet-less wasteland or hit by a bus or
  something.  In the meantime, we'll work on getting him added to the
  kernel web of trust"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  MAINTAINERS: add secondary tree for ceph modules
  MAINTAINERS: update ceph entries
  libceph: treat sockaddr_storage with uninitialized family as blank
  libceph: enable ceph in a non-default network namespace

8 years agoi2c: xgene-slimpro: Fix missing mbox_free_channel call in probe error path
Axel Lin [Tue, 30 Jun 2015 03:08:46 +0000 (11:08 +0800)]
i2c: xgene-slimpro: Fix missing mbox_free_channel call in probe error path

Free requested mailbox channel before return error.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
8 years agoi2c: I2C_MT65XX should depend on HAS_DMA
Geert Uytterhoeven [Fri, 26 Jun 2015 12:12:10 +0000 (14:12 +0200)]
i2c: I2C_MT65XX should depend on HAS_DMA

If NO_DMA=y:

    ERROR: "dma_unmap_single" [drivers/i2c/busses/i2c-mt65xx.ko] undefined!
    ERROR: "dma_mapping_error" [drivers/i2c/busses/i2c-mt65xx.ko] undefined!
    ERROR: "dma_map_single" [drivers/i2c/busses/i2c-mt65xx.ko] undefined!

Add a dependency on HAS_DMA to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
8 years agoioctl_compat: handle FITRIM
Mikulas Patocka [Thu, 9 Jul 2015 16:05:15 +0000 (18:05 +0200)]
ioctl_compat: handle FITRIM

The FITRIM ioctl has the same arguments on 32-bit and 64-bit
architectures, so we can add it to the list of compatible ioctls and
drop it from compat_ioctl method of various filesystems.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ted Ts'o <tytso@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoselinux: don't waste ebitmap space when importing NetLabel categories
Paul Moore [Thu, 9 Jul 2015 18:20:36 +0000 (14:20 -0400)]
selinux: don't waste ebitmap space when importing NetLabel categories

At present we don't create efficient ebitmaps when importing NetLabel
category bitmaps.  This can present a problem when comparing ebitmaps
since ebitmap_cmp() is very strict about these things and considers
these wasteful ebitmaps not equal when compared to their more
efficient counterparts, even if their values are the same.  This isn't
likely to cause problems on 64-bit systems due to a bit of luck on
how NetLabel/CIPSO works and the default ebitmap size, but it can be
a problem on 32-bit systems.

This patch fixes this problem by being a bit more intelligent when
importing NetLabel category bitmaps by skipping over empty sections
which should result in a nice, efficient ebitmap.

Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Paul Moore <pmoore@redhat.com>
8 years agoFix firmware loader uevent buffer NULL pointer dereference
Linus Torvalds [Thu, 9 Jul 2015 18:20:01 +0000 (11:20 -0700)]
Fix firmware loader uevent buffer NULL pointer dereference

The firmware class uevent function accessed the "fw_priv->buf" buffer
without the proper locking and testing for NULL.  This is an old bug
(looks like it goes back to 2012 and commit 1244691c73b2: "firmware
loader: introduce firmware_buf"), but for some reason it's triggering
only now in 4.2-rc1.

Shuah Khan is trying to bisect what it is that causes this to trigger
more easily, but in the meantime let's just fix the bug since others are
hitting it too (at least Ingo reports having seen it as well).

Reported-and-tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Ming Lei <ming.lei@canonical.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm: avoid setting up anonymous pages into file mapping
Kirill A. Shutemov [Mon, 6 Jul 2015 20:18:37 +0000 (23:18 +0300)]
mm: avoid setting up anonymous pages into file mapping

Reading page fault handler code I've noticed that under right
circumstances kernel would map anonymous pages into file mappings: if
the VMA doesn't have vm_ops->fault() and the VMA wasn't fully populated
on ->mmap(), kernel would handle page fault to not populated pte with
do_anonymous_page().

Let's change page fault handler to use do_anonymous_page() only on
anonymous VMA (->vm_ops == NULL) and make sure that the VMA is not
shared.

For file mappings without vm_ops->fault() or shred VMA without vm_ops,
page fault on pte_none() entry would lead to SIGBUS.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Willy Tarreau <w@1wt.eu>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMAINTAINERS: add secondary tree for ceph modules
Sage Weil [Thu, 9 Jul 2015 15:47:37 +0000 (11:47 -0400)]
MAINTAINERS: add secondary tree for ceph modules

The Ceph kernel code is primarily developed in the github tree, and only
pushed to the korg tree before going to Linus.  If Sage is unavailable and
another maintainer needs to push something upstream, pull requests may
originate from the github tree instead of Sage's korg tree.

Signed-off-by: Sage Weil <sage@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
8 years agoMAINTAINERS: update ceph entries
Sage Weil [Thu, 9 Jul 2015 15:46:14 +0000 (11:46 -0400)]
MAINTAINERS: update ceph entries

- The Ceph common code is used by both fs/ceph and drivers/block/rbd.
  Add a separate maintainers entry.

- Add Ilya as libceph maintainer and cephfs submaintainer.

- Attribute Documentation/ABI/testing/sysfs-bus-rbd to rbd.

- ceph-devel@vger.kernel.org should be L, not M in rbd entry.

Signed-off-by: Sage Weil <sage@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
8 years agolibceph: treat sockaddr_storage with uninitialized family as blank
Ilya Dryomov [Thu, 9 Jul 2015 10:57:52 +0000 (13:57 +0300)]
libceph: treat sockaddr_storage with uninitialized family as blank

addr_is_blank() should return true if family is neither AF_INET nor
AF_INET6.  This is what its counterpart entity_addr_t::is_blank_ip() is
doing and it is the right thing to do: in process_banner() we check if
our address is blank and if it is "learn" it from our peer.  As it is,
we never learn our address and always send out a blank one.  This goes
way back to ceph.git commit dd732cbfc1c9 ("use sockaddr_storage; and
some ipv6 support groundwork") from 2009.

While at at, do not open-code ipv6_addr_any() and use INADDR_ANY
constant instead of 0.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
8 years agolibceph: enable ceph in a non-default network namespace
Ilya Dryomov [Thu, 25 Jun 2015 14:47:45 +0000 (17:47 +0300)]
libceph: enable ceph in a non-default network namespace

Grab a reference on a network namespace of the 'rbd map' (in case of
rbd) or 'mount' (in case of ceph) process and use that to open sockets
instead of always using init_net and bailing if network namespace is
anything but init_net.  Be careful to not share struct ceph_client
instances between different namespaces and don't add any code in the
!CONFIG_NET_NS case.

This is based on a patch from Hong Zhiguo <zhiguohong@tencent.com>.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
8 years agodrm/radeon: disable vce init on cayman (v2)
Alex Deucher [Wed, 8 Jul 2015 16:58:20 +0000 (12:58 -0400)]
drm/radeon: disable vce init on cayman (v2)

Cayman does not have vce.  There were a few places in the
shared cayman/TV code where we were trying to do vce stuff.

v2: remove -ENOENT check

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix timeout calculation
Christian König [Wed, 8 Jul 2015 14:58:48 +0000 (16:58 +0200)]
drm/amdgpu: fix timeout calculation

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/radeon: check if BO_VA is set before adding it to the invalidation list
Christian König [Wed, 8 Jul 2015 07:56:14 +0000 (09:56 +0200)]
drm/radeon: check if BO_VA is set before adding it to the invalidation list

Otherwise we try to clear BO_VAs without an address.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=91141

Signed-off-by: Christian König <christian.koenig@amd.com>
Test-by: hadack@gmx.de
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/radeon: allways add the VM clear duplicate
Christian König [Wed, 8 Jul 2015 07:56:13 +0000 (09:56 +0200)]
drm/radeon: allways add the VM clear duplicate

We need to allways add the VM clear duplicate of the BO_VA,
no matter what the old status was.

Signed-off-by: Christian König <christian.koenig@amd.com>
Test-by: hadack@gmx.de
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agoRevert "Revert "drm/radeon: dont switch vt on suspend""
Alex Deucher [Wed, 8 Jul 2015 18:08:12 +0000 (14:08 -0400)]
Revert "Revert "drm/radeon: dont switch vt on suspend""

This reverts commit ac9134906b3f5c2b45dc80dab0fee792bd516d52.

We've fixed the underlying problem with cursors, so re-enable
this.

8 years agodrm/radeon: Fold radeon_set_cursor() into radeon_show_cursor()
Michel Dänzer [Tue, 7 Jul 2015 07:27:30 +0000 (16:27 +0900)]
drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor()

Reviewed-by: Grigori Goronzy <greg@chown.ath.cx>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2)
Grigori Goronzy [Tue, 7 Jul 2015 07:27:29 +0000 (16:27 +0900)]
drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2)

Everything is evicted from VRAM before suspend, so we need to make
sure all BOs are unpinned and re-pinned after resume. Fixes broken
mouse cursor after resume introduced by commit b9729b17.

[Michel Dänzer: Add pinning BOs on resume]

v2:
[Alex Deucher: merge cursor unpin into fb unpin loop]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100541
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Grigori Goronzy <greg@chown.ath.cx>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/radeon: Clean up reference counting and pinning of the cursor BOs
Michel Dänzer [Tue, 7 Jul 2015 07:27:28 +0000 (16:27 +0900)]
drm/radeon: Clean up reference counting and pinning of the cursor BOs

Take a GEM reference for and pin the new cursor BO, unpin and drop the
GEM reference for the old cursor BO in radeon_crtc_cursor_set2, and use
radeon_crtc->cursor_addr in radeon_set_cursor.

This fixes radeon_cursor_reset accidentally incrementing the cursor BO
pin count, and cleans up the code a little.

Cc: stable@vger.kernel.org
Reviewed-by: Grigori Goronzy <greg@chown.ath.cx>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdkfd: validate pdd where it acquired first
Maninder Singh [Thu, 9 Jul 2015 09:11:53 +0000 (14:41 +0530)]
drm/amdkfd: validate pdd where it acquired first

Currently pdd is validate after dereferencing it, which is
not correct, Thus validate pdd before its first use.

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
8 years agoRevert "MIPS: Kconfig: Disable SMP/CPS for 64-bit"
Markos Chandras [Wed, 1 Jul 2015 08:31:14 +0000 (09:31 +0100)]
Revert "MIPS: Kconfig: Disable SMP/CPS for 64-bit"

This reverts commit 6ca716f2e5571d25a3899c6c5c91ff72ea6d6f5e.

SMP/CPS is now supported on 64bit cores.

Cc: <stable@vger.kernel.org> # 4.1
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10592/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: cps-vec: Use macros for various arithmetics and memory operations
Markos Chandras [Wed, 1 Jul 2015 08:13:33 +0000 (09:13 +0100)]
MIPS: cps-vec: Use macros for various arithmetics and memory operations

Replace lw/sw and various arithmetic instructions with macros so the
code can work on 64-bit kernels as well.

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10591/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: kernel: cps-vec: Replace KSEG0 with CKSEG0
Markos Chandras [Wed, 1 Jul 2015 08:13:32 +0000 (09:13 +0100)]
MIPS: kernel: cps-vec: Replace KSEG0 with CKSEG0

In preparation for 64-bit CPS support, we replace KSEG0 with CKSEG0
so 64-bit kernels can be supported.

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10590/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: kernel: cps-vec: Use ta0-ta3 pseudo-registers for 64-bit
Markos Chandras [Wed, 1 Jul 2015 08:13:31 +0000 (09:13 +0100)]
MIPS: kernel: cps-vec: Use ta0-ta3 pseudo-registers for 64-bit

The cps-vec code assumes O32 ABI and uses t4-t7 in quite a few places. This
breaks the build on 64-bit. As a result of which, use the pseudo-registers
ta0-ta3 to make the code compatible with 64-bit.

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10589/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
Markos Chandras [Wed, 1 Jul 2015 08:13:30 +0000 (09:13 +0100)]
MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2

mips32r2 is a subset of mips64r2, so we replace mips32r2 with mips64r2
in preparation for 64-bit CPS support.

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10588/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: kernel: cps-vec: Replace 'la' macro with PTR_LA
Markos Chandras [Wed, 1 Jul 2015 08:13:29 +0000 (09:13 +0100)]
MIPS: kernel: cps-vec: Replace 'la' macro with PTR_LA

The PTR_LA macro will pick the correct "la" or "dla" macro to
load an address to a register. This gets rids of the following
warnings (and others) when building a 64-bit CPS kernel:

arch/mips/kernel/cps-vec.S:63: Warning: la used to load 64-bit address
arch/mips/kernel/cps-vec.S:159: Warning: la used to load 64-bit address
arch/mips/kernel/cps-vec.S:220: Warning: la used to load 64-bit address
arch/mips/kernel/cps-vec.S:240: Warning: la used to load 64-bit address
[...]

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10587/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: kernel: smp-cps: Fix 64-bit compatibility errors due to pointer casting
Markos Chandras [Wed, 1 Jul 2015 08:13:28 +0000 (09:13 +0100)]
MIPS: kernel: smp-cps: Fix 64-bit compatibility errors due to pointer casting

Commit 1d8f1f5a780a ("MIPS: smp-cps: hotplug support") added hotplug
support in the SMP/CPS implementation but it introduced a few build problems
on 64-bit kernels due to pointer being casted to and from 'int' C types. We
fix this problem by using 'unsigned long' instead which should match the size
of the pointers in 32/64-bit kernels. Finally, we fix the comment since the
CM base address is loaded to v1($3) instead of v0.

Fixes the following build problems:

arch/mips/kernel/smp-cps.c: In function 'wait_for_sibling_halt':
arch/mips/kernel/smp-cps.c:366:17: error: cast from pointer to integer of
different size [-Werror=pointer-to-int-cast]
[...]
arch/mips/kernel/smp-cps.c: In function 'cps_cpu_die':
arch/mips/kernel/smp-cps.c:427:13: error: cast to pointer
from integer of different size [-Werror=int-to-pointer-cast]

cc1: all warnings being treated as errors

Fixes: 1d8f1f5a780a ("MIPS: smp-cps: hotplug support")
Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10586/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Fix erroneous JR emulation for MIPS R6
Markos Chandras [Wed, 24 Jun 2015 08:52:01 +0000 (09:52 +0100)]
MIPS: Fix erroneous JR emulation for MIPS R6

Commit 5f9f41c474befb4ebbc40b27f65bb7d649241581 ("MIPS: kernel: Prepare
the JR instruction for emulation on MIPS R6") added support for
emulating the JR instruction on MIPS R6 cores but that introduced a bug
which could be triggered when hitting a JALR opcode because the code used
the wrong field in the 'r_format' struct to determine the instruction
opcode. This lead to crashes because an emulated JALR instruction was
treated as a JR one when the R6 emulator was turned off.

Fixes: 5f9f41c474be ("MIPS: kernel: Prepare the JR instruction for emulation on MIPS R6")
Cc: <stable@vger.kernel.org> # 4.0+
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10583/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Fix branch emulation for BLTC and BGEC instructions
Markos Chandras [Wed, 24 Jun 2015 08:52:00 +0000 (09:52 +0100)]
MIPS: Fix branch emulation for BLTC and BGEC instructions

Commits f1b44067c19258b7614e3cd09dfe8d8e12ff5895 ("MIPS: Emulate the
new MIPS R6 B{L,G}T{Z,}{AL,}C instructions") and commit
a8ff66f52d3f17b5ae793955270675c197f73d6c ("MIPS: Emulate the new MIPS
R6 B{L,G}E{Z,}{AL,}C instructions") added support for emulating various
branch compact instructions. However, it missed the case for those which
use the old BLEZL and BGTZL opcodes leading to random crashes when the R6
emulator is disabled. We fix this by ensuring that the 'rt' field is not
zero which is always true for these branch compact instructions.

Fixes: f1b44067c192 ("MIPS: Emulate the new MIPS R6 B{L,G}T{Z,}{AL,}C instructions")
Fixes: a8ff66f52d3f ("MIPS: Emulate the new MIPS R6 B{L,G}E{Z,}{AL,}C instructions")
Cc: <stable@vger.kernel.org> # 4.0+
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/10582/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: kernel: traps: Fix broken indentation
Markos Chandras [Wed, 24 Jun 2015 08:29:20 +0000 (09:29 +0100)]
MIPS: kernel: traps: Fix broken indentation

Fix broken indentation caused by the SMTC removal
commit b633648c5ad3cfbda0b3daea50d2135d44899259
("MIPS: MT: Remove SMTC support")

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Fixes: b633648c5ad3c ("MIPS: MT: Remove SMTC support")
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10581/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bootmem: Don't use memory holes for page bitmap
Alexander Sverdlin [Thu, 2 Jul 2015 15:16:01 +0000 (17:16 +0200)]
MIPS: bootmem: Don't use memory holes for page bitmap

Commit f9a7febd leads to a fact that mapstart and therefore a page bitmap for
bootmem allocator immediately follows initrd_end. This doesn't always work
well on Octeon, where there are holes in PFN ranges (refer to 5b3b1688 and
4MB-aligned PFN allocation). Depending on the inird location it could happen,
that mapstart would be in an area not allocated by plat_mem_setup() in
arch/mips/cavium-octeon/setup.c, but in the alignment hole between initrd and
the next PFN area. Later on this memory will be unconditionally made available
to buddy allocator at the end of free_all_bootmem_core() (mm/bootmem.c).
All of this results in Linux using the memory not designated for Linux in
Octeon's plat_mem_setup(), which in turn means corruption of the memory used
by another OS/baremetal code on the same SoC.

It doesn't look to me as a problem of Octeon platform code, but rather as an
inability of f9a7febd to deal correctly with the fragmented memory-mappings.
Proposed fix moves the check for initrd address to the same calculation-loop
in bootmem_init() (arch/mips/kernel/setup.c), which also accounts for kernel
code location. This should result in mapstart located starting from the first
PFN area after kernel code AND initrd.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Cc: linux-mips@linux-mips.org
Cc: David Daney <david.daney@cavium.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Cc: Joe Perches <joe@perches.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Yusuf Khan <yusuf.khan@nokia.com>
Cc: Michael Kreuzer <michael.kreuzer@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Patchwork: https://patchwork.linux-mips.org/patch/10594/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agotime: Get rid of do_posix_clock_monotonic_gettime
Thomas Gleixner [Thu, 9 Jul 2015 08:51:46 +0000 (10:51 +0200)]
time: Get rid of do_posix_clock_monotonic_gettime

All users gone. Remove it before we get another one.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
8 years agocris: Replace do_posix_clock_monotonic_gettime()
Thomas Gleixner [Thu, 9 Jul 2015 08:51:46 +0000 (10:51 +0200)]
cris: Replace do_posix_clock_monotonic_gettime()

ktime_get_ts() is the proper interface today.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
8 years agoRevert "drm/i915: Allocate context objects from stolen"
Ville Syrjälä [Mon, 29 Jun 2015 17:28:35 +0000 (20:28 +0300)]
Revert "drm/i915: Allocate context objects from stolen"

Stolen gets trashed during hibernation, so storing contexts there
is not a very good idea. On my IVB machines this leads to a totally
dead GPU on resume. A reboot is required to resurrect it. So let's
not store contexts where they will get trampled.

This reverts commit 149c86e74fe44dcbac5e9f8d145c5fbc5dc21261.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Declare the swizzling unknown for L-shaped configurations
Chris Wilson [Mon, 29 Jun 2015 13:01:19 +0000 (14:01 +0100)]
drm/i915: Declare the swizzling unknown for L-shaped configurations

The old style of memory interleaving swizzled upto the end of the
first even bank of memory, and then used the remainder as unswizzled on
the unpaired bank - i.e. swizzling is not constant for all memory. This
causes problems when we try to migrate memory and so the kernel prevents
migration at all when we detect L-shaped inconsistent swizzling.
However, this issue also extends to userspace who try to manually detile
into memory as the swizzling for an individual page is unknown (it
depends on its physical address only known to the kernel), userspace
cannot correctly swizzle objects.

v2: Mark the global swizzling as unknown rather than adjust the value
reported to userspace.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91105
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agorocker: add change MTU support
Scott Feldman [Wed, 8 Jul 2015 23:06:47 +0000 (16:06 -0700)]
rocker: add change MTU support

Implement ndo_change_mtu: on MTU change, reallocate Rx ring bufs and signal
HW of new port MTU value.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Tested-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoneterion: s2io: Use module_pci_driver
Vaishali Thakkar [Thu, 9 Jul 2015 04:55:39 +0000 (10:25 +0530)]
neterion: s2io: Use module_pci_driver

Use module_pci_driver for drivers whose init and exit functions
only register and unregister, respectively.

A simplified version of the Coccinelle semantic patch that performs
this transformation is as follows:

@a@
identifier f, x;
@@
-static f(...) { return pci_register_driver(&x); }

@b depends on a@
identifier e, a.x;
statement S;
@@
-static e(...) {
-pci_unregister_driver(&x);
-DBG_PRINT(INIT_DBG,"S");
- }

@c depends on a && b@
identifier a.f;
declarer name module_init;
@@
-module_init(f);

@d depends on a && b && c@
identifier b.e, a.x;
declarer name module_exit;
declarer name module_pci_driver;
@@
-module_exit(e);
+module_pci_driver(x);

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomacvtap: Destroy minor_idr on module_exit
Johannes Thumshirn [Wed, 8 Jul 2015 15:16:49 +0000 (17:16 +0200)]
macvtap: Destroy minor_idr on module_exit

Destroy minor_idr on module_exit, reclaiming the allocated memory.

This was detected by the following semantic patch (written by Luis Rodriguez
<mcgrof@suse.com>)
<SmPL>
@ defines_module_init @
declarer name module_init, module_exit;
declarer name DEFINE_IDR;
identifier init;
@@

module_init(init);

@ defines_module_exit @
identifier exit;
@@

module_exit(exit);

@ declares_idr depends on defines_module_init && defines_module_exit @
identifier idr;
@@

DEFINE_IDR(idr);

@ on_exit_calls_destroy depends on declares_idr && defines_module_exit @
identifier declares_idr.idr, defines_module_exit.exit;
@@

exit(void)
{
 ...
 idr_destroy(&idr);
 ...
}

@ missing_module_idr_destroy depends on declares_idr && defines_module_exit && !on_exit_calls_destroy @
identifier declares_idr.idr, defines_module_exit.exit;
@@

exit(void)
{
 ...
 +idr_destroy(&idr);
}
</SmPL>

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
David S. Miller [Thu, 9 Jul 2015 07:03:10 +0000 (00:03 -0700)]
Merge git://git./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. This batch
mostly comes with patches to address fallout from the previous merge window
cycle, they are:

1) Use entry->state.hook_list from nf_queue() instead of the global nf_hooks
   which is not valid when used from NFPROTO_NETDEV, this should cause no
   problems though since we have no userspace queueing for that family, but
   let's fix this now for the sake of correctness. Patch from Eric W. Biederman.

2) Fix compilation breakage in bridge netfilter if CONFIG_NF_DEFRAG_IPV4 is not
   set, from Bernhard Thaler.

3) Use percpu jumpstack in arptables too, now that there's a single copy of the
   rule blob we can't store the return address there anymore. Patch from
   Florian Westphal.

4) Fix a skb leak in the xmit path of bridge netfilter, problem there since
   2.6.37 although it should be not possible to hit invalid traffic there, also
   from Florian.

5) Eric Leblond reports that when loading a large ruleset with many missing
   modules after a fresh boot, nf_tables can take long time commit it. Fix this
   by processing the full batch until the end, even on missing modules, then
   abort only once and restart processing.

6) Add bridge netfilter files to the MAINTAINER files.

7) Fix a net_device refcount leak in the new IPV6 bridge netfilter code, from
   Julien Grall.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4vf: Fix check to use new User Doorbell mechanism
Hariprasad Shenai [Thu, 9 Jul 2015 09:25:46 +0000 (14:55 +0530)]
cxgb4vf: Fix check to use new User Doorbell mechanism

If we don't have access to the new User GTS (T5+), use the old doorbell
mechanism; otherwise use the new BAR2 mechanism.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosfc: Report TX completions to BQL after all TX events in interrupt
Peter Dunning [Wed, 8 Jul 2015 09:05:10 +0000 (10:05 +0100)]
sfc: Report TX completions to BQL after all TX events in interrupt

The limit for BQL is updated each time we call
netdev_tx_completed_queue.
Without this patch the BQL limit was updated for every TX event we
see.
The issue was that this only updated the limit to handle the data
we complete in two events as the first event wouldn't show that
enough traffic had been processed between them.

This was OK when interrupt moderation was off but not when it was
on as more data had to be completed in a single interrupt.

The patch changes this so that we do report the completion to BQL
only when all the TX events in the interrupt have been processed.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agodrivers/net/usb: add device id for NVIDIA Tegra USB 3.0 Ethernet
Zheng Liu [Tue, 7 Jul 2015 20:54:12 +0000 (13:54 -0700)]
drivers/net/usb: add device id for NVIDIA Tegra USB 3.0 Ethernet

This device is sold as 'NVIDIA Tegra USB 3.0 Ethernet'.
Chipset is RTL8153 and works with r8152.

Signed-off-by: Zheng Liu <zhliu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years ago3c59x: Fix shared IRQ handling
Denys Vlasenko [Tue, 7 Jul 2015 18:48:55 +0000 (20:48 +0200)]
3c59x: Fix shared IRQ handling

As its first order of business, boomerang_interrupt() checks whether
the device really has any pending interrupts. If it does not,
it does nothing and returns, but it still returns IRQ_HANDLED.

This is wrong: interrupt was not handled, IRQ handlers of other
devices sharing this IRQ line need to be called.

vortex_interrupt() has it right: it returns IRQ_NONE in this case
via IRQ_RETVAL(0).

Do the same in boomerang_interrupt().

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
CC: David S. Miller <davem@davemloft.net>
CC: linux-kernel@vger.kernel.org
CC: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agovmxnet3: prevent receive getting out of sequence on napi poll
Neil Horman [Tue, 7 Jul 2015 18:02:18 +0000 (14:02 -0400)]
vmxnet3: prevent receive getting out of sequence on napi poll

vmxnet3's current napi path is built to count every rx descriptor we recieve,
and use that as a count of the napi budget.  That means its possible to return
from a napi poll halfway through recieving a fragmented packet accross multiple
dma descriptors.  If that happens, the next napi poll will start with the
descriptor ring in an improper state (e.g. the first descriptor we look at may
have the end-of-packet bit set), which will cause a BUG halt in the driver.

Fix the issue by only counting whole received packets in the napi poll and
returning that value, rather than the descriptor count.

Tested by the reporter and myself, successfully

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Shreyas Bhatewara <sbhatewara@vmware.com>
CC: "David S. Miller" <davem@davemloft.net>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoipv4: add support for linkdown sysctl to netconf
Andy Gospodarek [Tue, 7 Jul 2015 17:56:57 +0000 (13:56 -0400)]
ipv4: add support for linkdown sysctl to netconf

This kernel patch exports the value of the new
ignore_routes_with_linkdown via netconf.

v2: changes to notify userspace via netlink when sysctl values change
and proposed for 'net' since this could be considered a bugfix

Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Thu, 9 Jul 2015 00:34:51 +0000 (17:34 -0700)]
Merge tag 'pm+acpi-4.2-rc2' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "These are fixes on top of the previous PM+ACPI pull requests
  (including one fix for a 4.1 regression) and two commits adding
  _CLS-based device enumeration support to the ACPI core and the ATA
  subsystem that waited for the latest ACPICA changes to be merged.

  Specifics:

   - Fix for an ACPI resources management regression introduced during
     the 4.1 cycle (that unfortunately went into -stable) effectively
     reverting the bad commit along with the recent fixups on top of it
     and using an alternative approach to address the underlying issue
     (Rafael J Wysocki).

   - Fix for a memory leak and an incorrect return value in an error
     code path in the ACPI LPSS (Low-Power Subsystem) driver (Rafael J
     Wysocki).

   - Fix for a leftover dangling pointer in an error code path in the
     new wakeup IRQ support code (Rafael J Wysocki).

   - Fix to prevent infinite loops (due to errors in other places) from
     happening in the core generic PM domains support code (Geert
     Uytterhoeven).

   - Hibernation documentation update/clarification (Uwe Geuder).

   - Support for _CLS-based device enumeration in the ACPI core and in
     the ATA subsystem (Suravee Suthikulpanit)"

* tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / wakeirq: Avoid setting power.wakeirq too hastily
  ata: ahci_platform: Add ACPI _CLS matching
  ACPI / scan: Add support for ACPI _CLS device matching
  PM / hibernate: clarify resume documentation
  PM / Domains: Avoid infinite loops in attach/detach code
  ACPI / LPSS: Fix up acpi_lpss_create_device()
  ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage

8 years agoMerge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux...
Linus Torvalds [Thu, 9 Jul 2015 00:15:55 +0000 (17:15 -0700)]
Merge branch 'stable' of git://git./linux/kernel/git/cmetcalf/linux-tile

Pull arch/tile fix from Chris Metcalf:
 "This fix eliminates a "section mismatch" warning caused by the new
  __ex_table checking code in modpost"

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  modpost: work correctly with tile coldtext sections

8 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty...
Linus Torvalds [Thu, 9 Jul 2015 00:14:54 +0000 (17:14 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/rusty/linux

Pull module fix from Rusty Russell:
 "Single fix: missing rbtree removal in the module load failure path.
  Easy to trigger with bad params.

  Thanks to Peter Zijlstra and Arthur Marsh for going around on this
  one"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  module: Fix load_module() error path

8 years agotest_bpf: extend tests for 32-bit endianness conversion
Xi Wang [Wed, 8 Jul 2015 21:00:56 +0000 (14:00 -0700)]
test_bpf: extend tests for 32-bit endianness conversion

Currently "ALU_END_FROM_BE 32" and "ALU_END_FROM_LE 32" do not test if
the upper bits of the result are zeros (the arm64 JIT had such bugs).
Extend the two tests to catch this.

Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosfc: Ensure down_write(&filter_sem) and up_write() are matched before calling efx_net...
Shradha Shah [Wed, 8 Jul 2015 09:12:45 +0000 (10:12 +0100)]
sfc: Ensure down_write(&filter_sem) and up_write() are matched before calling efx_net_open()

This patch avoids the double up_write to filter_sem if
efx_net_open() fails.

Resolves: 2d432f20d27c1813a2746008e16dd6ce12a14dc1

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'cxgb4-t6'
David S. Miller [Wed, 8 Jul 2015 23:13:55 +0000 (16:13 -0700)]
Merge branch 'cxgb4-t6'

Hariprasad Shenai says:

====================
Cleanup, T6 changes and register range update

This patch series adds the following:
Don't use entire L2T table, update register ranges for T6 adapter,
read stats for only available channels for T6 and enable cim_la dump for
T6 adapter also.

This patch series has been created against net-next tree and includes
patches on cxgb4 driver.

We have included all the maintainers of respective drivers. Kindly review
the change and let us know in case of any review comments.
====================

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: Enable cim_la dump to support T6
Hariprasad Shenai [Tue, 7 Jul 2015 16:19:21 +0000 (21:49 +0530)]
cxgb4: Enable cim_la dump to support T6

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: Read stats for only available channels
Hariprasad Shenai [Tue, 7 Jul 2015 16:19:20 +0000 (21:49 +0530)]
cxgb4: Read stats for only available channels

Updating the driver to read the stats of only available channels. T6 and
later has only 2 channels

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>