Using addressof then casting to the original type is pointless,
so remove these unnecessary casts.

Done via coccinelle script:

$ cat typecast.cocci
@@
type T;
T foo;
@@

-	(T *)&foo
+	&foo
Signed-off-by: NJoe Perches <joe@perches.com>
Tested-by: NKavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The commit 6494294f ("i40e/i40evf: Use
dma_set_mask_and_coherent") uses dma_set_mask_and_coherent() to
replace dma_set_coherent_mask() for the benefit of return error.
The conversion brings some confusion in error checking as whether
against DMA_BIT_MASK(64) or DMA_BIT_MASK(32). For one, if error is
zero, the check will be against DMA_BIT_MASK(64) twice. Fix this
error checking by binding the check to the pertinent one.

Cc: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: NJean Sacren <sakiwit@gmail.com>
Tested-by: NKavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The commit c7d05ca8 ("i40e: driver ethtool core") introduced the
new function i40e_add_del_fdir_sctpv4() with the kernel doc
description a little bit off. The trivial error was copied over to a
different file by the commit 17a73f6b ("i40e: Flow Director
sideband accounting") most recently. Fix the kernel doc with the
correct description for clarity.

Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Joseph Gasparakis <joseph.gasparakis@intel.com>
Signed-off-by: NJean Sacren <sakiwit@gmail.com>
Tested-by: NKavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Change the ixgbe_read_reg function name to ixgbevf_read_reg to
avoid a namespace clash with the ixgbe driver. This will allow
ixgbe to take its register read function out-of-line to reduce
memory footprint.
Signed-off-by: NMark Rustad <mark.d.rustad@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The commit c97506ab ("ixgbe: Add check for FW veto bit")
introduced the new function ixgbe_check_reset_blocked() with a minor
issue in declaration. Fix the declaration by changing the type
specifier to bool as the definition returns a boolean value.
Additionally all ixgbe_check_reset_blocked() callers are expected to
return a boolean value.
Signed-off-by: NJean Sacren <sakiwit@gmail.com>
Acked-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

ixgbe has a single set of TX time stamping resources per NIC.
Use a simple bit lock to avoid race conditions and leaking skbs
when multiple TX rings try to claim time stamping.
Signed-off-by: NJakub Kicinski <kubakici@wp.pl>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

skb_tx_timestamp() does not report software time stamp
if SKBTX_IN_PROGRESS is set. According to timestamping.txt
software time stamps are a fallback and should not be
generated if hardware time stamp is provided.

Move call to skb_tx_timestamp() after setting
SKBTX_IN_PROGRESS.
Signed-off-by: NJakub Kicinski <kubakici@wp.pl>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

ptp_tx_skb is always set before work is scheduled,
work is cancelled before ptp_tx_skb is set to NULL.
PTP work cannot ever see ptp_tx_skb set to NULL.
Signed-off-by: NJakub Kicinski <kubakici@wp.pl>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

In commit da1e2046, the flow for enabling/disabling an Si errata
workaround (e1000_lv_jumbo_workaround_ich8lan) was changed to fix a problem
with iAMT connections dropping on interface down with jumbo frames set.
Part of this change was to move the function call disabling the workaround
to e1000e_down() from the e1000_setup_rctl() function.  The mechanic for
disabling of this workaround involves writing several MAC and PHY registers
back to hardware defaults.

After this commit, when the driver is loaded with the cable out, the PHY
registers are not programmed with the correct default values.  This causes
the device to be capable of transmitting packets, but is unable to recieve
them until this workaround is called.

The flow of e1000e's open code relies upon calling the above workaround to
expicitly program these registers either with jumbo frame appropriate settings
or h/w defaults on 82579 and newer hardware.

Fix this issue by adding logic to e1000_setup_rctl() that not only calls
e1000_lv_jumbo_workaround_ich8lan() when jumbo frames are set, to enable the
workaround, but also calls this function to explicitly disable the workaround
in the case that jumbo frames are not set.
Signed-off-by: NDave Ertman <davidx.m.ertman@intel.com>
Tested-by: NJeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Conflicts:
	drivers/net/xen-netback/netback.c

A bug fix overlapped with changing how the netback SKB control
block is implemented.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

John W. Linville says:

====================
pull request: wireless-next 2014-03-31

Please accept this one last round of general wireless updates for
the 3.15 merge window!

For the Bluetooth bits, Gustavo says:

"Here follow another set of patches to 3.15. This is mostly a bug fix
pull request with the exception of one commit from Marcel which adds
tracking to the current configured LE scan type parameter."

Beyond that, notable bits include some final refactoring of rtl8180
and the addition of the rtl8187se driver, fixes for a number of
problems identified by Dan Carpenter and his static analysis tools,
and a handful of other bits here and there.

Please let me know if there are problems!
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While transmit over a at86rf231 device and unloading the module I got:

[   29.643073] WARNING: CPU: 0 PID: 3 at kernel/workqueue.c:1335 __queue_work+0xb4/0x224()
[   29.651457] Modules linked in: at86rf230(-) autofs4
[   29.656612] CPU: 0 PID: 3 Comm: ksoftirqd/0 Tainted: G        W    3.14.0-rc6-01602-g902659e-dirty #294
[   29.666490] [<c00124f0>] (unwind_backtrace) from [<c0010ad0>] (show_stack+0x10/0x14)
[   29.674628] [<c0010ad0>] (show_stack) from [<c0032c80>] (warn_slowpath_common+0x60/0x80)
[   29.683116] [<c0032c80>] (warn_slowpath_common) from [<c0032d30>] (warn_slowpath_null+0x18/0x20)
[   29.692329] [<c0032d30>] (warn_slowpath_null) from [<c0045b08>] (__queue_work+0xb4/0x224)
[   29.700906] [<c0045b08>] (__queue_work) from [<c0045cc8>] (queue_work_on+0x50/0x78)
[   29.708944] [<c0045cc8>] (queue_work_on) from [<c05669cc>] (mac802154_tx+0x1e4/0x240)
[   29.717164] [<c05669cc>] (mac802154_tx) from [<c0471814>] (dev_hard_start_xmit+0x2f0/0x43c)
[   29.725926] [<c0471814>] (dev_hard_start_xmit) from [<c04878d0>] (sch_direct_xmit+0x64/0x2a0)
[   29.734867] [<c04878d0>] (sch_direct_xmit) from [<c0487c38>] (__qdisc_run+0x12c/0x18c)
[   29.743169] [<c0487c38>] (__qdisc_run) from [<c046e1b0>] (net_tx_action+0xe0/0x178)
[   29.751205] [<c046e1b0>] (net_tx_action) from [<c0036690>] (__do_softirq+0x100/0x264)
[   29.759420] [<c0036690>] (__do_softirq) from [<c0036818>] (run_ksoftirqd+0x24/0x4c)
[   29.767453] [<c0036818>] (run_ksoftirqd) from [<c005232c>] (smpboot_thread_fn+0x128/0x13c)
[   29.776121] [<c005232c>] (smpboot_thread_fn) from [<c004c3fc>] (kthread+0xd0/0xe4)
[   29.784061] [<c004c3fc>] (kthread) from [<c000da88>] (ret_from_fork+0x14/0x2c)
[   29.791628] ---[ end trace 3406ff24bd973834 ]---

The problem is there are still interrupts after deregister ieee802154
device. This patch mask all interrupts in the at86rf2xx chips before
deregister the device.
Signed-off-by: NAlexander Aring <alex.aring@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

After commit c15b1cca ("ipv6: move DAD and addrconf_verify
processing to workqueue") some counters are now updated in process context
and thus need to disable bh before doing so, otherwise deadlocks can
happen on 32-bit archs. Fabio Estevam noticed this while while mounting
a NFS volume on an ARM board.

As a compensation for missing this I looked after the other *_STATS_BH
and found three other calls which need updating:

1) icmp6_send: ip6_fragment -> icmpv6_send -> icmp6_send (error handling)
2) ip6_push_pending_frames: rawv6_sendmsg -> rawv6_push_pending_frames -> ...
   (only in case of icmp protocol with raw sockets in error handling)
3) ping6_v6_sendmsg (error handling)

Fixes: c15b1cca ("ipv6: move DAD and addrconf_verify processing to workqueue")
Reported-by: NFabio Estevam <festevam@gmail.com>
Tested-by: NFabio Estevam <fabio.estevam@freescale.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Though we made sure to acquire a valid MAC for
the netdevice we never actually programmed it
into the hardware.
So if the bootloader did not set the MAC,
network operation would only work if userspace
explicitly asked to transfer the MAC to hardware.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

First off, we don't need to check for non-NULL rt any more, as we are
guaranteed to always get a valid rt6_info. Drop the check.

In case we couldn't allocate an inet_peer for fragmentation information
we currently generate strictly incrementing fragmentation ids for all
destination. This is done to maximize the cycle and avoid collisions.

Those fragmentation ids are very predictable. At least we should try to
mix in the destination address.

While it should make no difference to simply use a PRNG at this point,
secure_ipv6_id ensures that we don't leak information from prandom,
so its internal state could be recoverable.

This fallback function should normally not get used thus this should
not affect performance at all. It is just meant as a safety net.
Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Main difference between napi_frags_skb() and napi_gro_receive() is that
the later is called while ethernet header was already pulled by the NIC
driver (eth_type_trans() was called before napi_gro_receive())

Jerry Chu in commit 299603e8 ("net-gro: Prepare GRO stack for the
upcoming tunneling support") tried to remove this difference by calling
eth_type_trans() from napi_frags_skb() instead of doing this later from
napi_frags_finish()

Goal was that napi_gro_complete() could call
ptype->callbacks.gro_complete(skb, 0)  (offset of first network header =
0)

Also, xxx_gro_receive() handlers all use off = skb_gro_offset(skb) to
point to their own header, for the current skb and ones held in gro_list

Problem is this cleanup work defeated the frag0 optimization:
It turns out the consecutive pskb_may_pull() calls are too expensive.

This patch brings back the frag0 stuff in napi_frags_skb().

As all skb have their mac header in skb head, we no longer need
skb_gro_mac_header()
Reported-by: NMichal Schmidt <mschmidt@redhat.com>
Fixes: 299603e8 ("net-gro: Prepare GRO stack for the upcoming tunneling support")
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Binding might result in a NULL device which is later dereferenced
without checking.
Signed-off-by: NSasha Levin <sasha.levin@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This allows to monitor carrier on/off transitions and detect link
flapping issues:
 - new /sys/class/net/X/carrier_changes
 - new rtnetlink IFLA_CARRIER_CHANGES (getlink)

Tested:
  - grep . /sys/class/net/*/carrier_changes
    + ip link set dev X down/up
    + plug/unplug cable
  - updated iproute2: prints IFLA_CARRIER_CHANGES
  - iproute2 20121211-2 (debian): unchanged behavior
Signed-off-by: NDavid Decotigny <decot@googlers.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The issue raises when adding policy route, specify a particular
NIC as oif, the policy route did not take effect. The reason is
that fl6.oif is not set and route map failed. From the
tcp_v6_send_response function, if the binding address is linklocal,
fl6.oif is set, but not for global address.
Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: NWang Yufen <wangyufen@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Move the whole rt6_need_strict as static inline into ip6_route.h,
so that it can be reused
Signed-off-by: NWang Yufen <wangyufen@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NWang Yufen <wangyufen@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Florian Fainelli says:

====================
net: document sysfs entries

This patchset attempts to document the basic set of sysfs entries that are
exposed by netdevices in /sys/class/net/<iface>/

I did not go before the pre-git era, so the oldest entries are marked with
the 2.6.12 kernel version and dated of April 2005.

Future patches will document the queues/ and statistics/ directories as well.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

NET_ADDR_* values are exported in the
/sys/class/net/<iface>/addr_assign_type sysfs attributes, and as such
constitutes an user-space ABI. Move the NET_ADDR_* definitions from
include/linux/netdevice.h to include/uapi/linux/netdevice.h
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add sysfs attributes Documentation entries for the basic set of
attributes that are exposed by a network device in
/sys/class/net/<iface>/
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This device provides QMI and ethernet functionality via a standard CDC
ethernet descriptor.  But when driven by cdc_ether, the QMI
functionality is unavailable because only cdc_ether can claim the USB
interface. Thus blacklist the device in cdc_ether and add its IDs to
qmi_wwan, which enables both QMI and ethernet simultaneously.
Signed-off-by: NYegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Vlad Yasevich says:

====================
bridge: Fix forwarding of 8021AD frames

Bridge has its own way to deterine if the packet is forwardable and it doesn't
support 8021ad tags correctly.  Instead just allow bridge to use an
existing is_skb_forwardable() function.

v2: Fix missing hunk in patch 2/2 to make it build.

v3: Fix indent for is_skb_forwardable
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use existing function instead of trying to use our own.
Signed-off-by: NVlad Yasevich <vyasevic@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NVlad Yasevich <vyasevic@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

If allocation of io_dmabuf fails, rtl8187_probe() calls usb_put_dev(udev)
while usb_get_dev(udev) is not called yet. As a result refcnt is decremented
incorrectly and usb_dev can be used after memory deallocation.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

In rtl8180/rtl8185/rtl8187se the register space is represented
using packed structure type. Register are thus accessed using a
pointer of this type.
All registers are packed toghether, and only small gaps are present.

However Rtl8187se has also some "sparse" registers, very far from
the "main register block".

It could be possible to access them by simply declare huge reserved
blocks inside the register struct (and this causes NO memory waste).
However, for various reasons, access to those "far" registers is
done with special dedicated macros, without declaring them in the
register struct.

This is done in an intricate manner, that makes code less readable
and caused static analisys tool to produce warnings.

This patch keeps the "macro" mechanism, but it changes its
implementation in a simplier and more straightforward way.
Signed-off-by: NAndrea Merello <andrea.merello@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

There is a missing set of curly braces here so the debug output says
"Probe confirm received" unintentionally.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

[ 6630.450908] BUG: spinlock bad magic on CPU#1,
               ksdioirqd/mmc1/355
[ 6630.450914] Unable to handle kernel NULL pointer dereference
               at virtual address 0000004f
[ 6630.450919] pgd = ecbd8000
[ 6630.450926] [0000004f] *pgd=00000000
[ 6630.450936]  lock: 0xeea4ab08, .magic: 00000000,
               .owner: <none>/-1, .owner_cpu: 0
[ 6630.450939] Backtrace:
[ 6630.450956] [<c010d354>] (unwind_backtrace+0x0/0x118) from
               [<c060c238>] (dump_stack+0x28/0x30)
[ 6630.450960] Internal error: Oops: 5 [#1] SMP ARM
[ 6630.450964] Modules linked in: uvcvideo videobuf2_vmalloc
[ 6630.450980] [<c060c238>] (dump_stack+0x28/0x30) from
               [<c0315ab4>] (spin_dump+0x80/0x94)
[ 6630.450988] [<c0315ab4>] (spin_dump+0x80/0x94) from
               [<c0315af4>] (spin_bug+0x2c/0x30)
[ 6630.450996] [<c0315af4>] (spin_bug+0x2c/0x30) from
               [<c0315b80>] (do_raw_spin_lock+0x28/0x15c)
[ 6630.451004] [<c0315b80>] (do_raw_spin_lock+0x28/0x15c) from
               [<c0610c24>] (_raw_spin_lock_irqsave+0x20/0x28)
[ 6630.451016] [<c0610c24>] (_raw_spin_lock_irqsave+0x20/0x28)
               from [<bf07a7f4>] (mwifiex_exec_next_cmd
                                  +0x6c/0x45c [mwifiex])
[ 6630.451030] [<bf07a7f4>] (mwifiex_exec_next_cmd+0x6c/0x45c
               [mwifiex]) from [<bf07834c>]
               (mwifiex_main_process+0x2c8/0x464 [mwifiex])
[ 6630.451047] [<bf07834c>] (mwifiex_main_process+0x2c8/0x464
               [mwifiex]) from [<bf0a093c>]
               (mwifiex_sdio_interrupt+0xc8/0x1cc [mwifiex_sdio]
[ 6630.451064] [<bf0a093c>] (mwifiex_sdio_interrupt+0xc8/0x1cc
               [mwifiex_sdio]) from [<c04bbde0>]
               (sdio_irq_thread+0x178/0x31c)
[ 6630.451079] [<c04bbde0>] (sdio_irq_thread+0x178/0x31c) from
               [<c0145514>] (kthread+0xc8/0xd8)
[ 6630.451095] [<c0145514>] (kthread+0xc8/0xd8) from
               [<c0106118>] (ret_from_fork+0x14/0x20)

This bug has introduced/exposed due to recent patch in which we
cancel pending commands before suspend (using hs_enabling flag).
The NULL pointer is dereferenced when both
mwifiex_cancel_all_pending_cmd() and mwifiex_exec_next_cmd()
try to access cmd pending queue simultaneously.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

ANAPARAM3 register, defined in the rtl818x common register
struct, is accessed as 16bit by rtl8187se and as 8bit by rtl8187b.
Since I have no documentation about this, I can only stick to
the reference code and to what is known to work.

This issue has been addressed by a patch from Larry Finger
that introduces an "union", in the register struct.
In my last patch-set I applied it on the register struct, but
I forget to update rtl8187 driver too.
This patch does it.

Suggested-by: Larry Finger <Larry.Finger@lwfinger.net> [ Original patch ]
Signed-off-by: NAndrea Merello <andrea.merello@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Some HP notebooks using this rtl8188ee hardware module can't get
AP scan results with pin-based interrupts mode, enabling MSI interrupts
mode could fix it.

As RealTek's testing results, RTL8188EE works well with both MSI mode
and pin-based mode fallback.
Signed-off-by: NAdam Lee <adam.lee@canonical.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add MSI interrupts mode support, enable it when submodules' msi_support
flag is true, also could fallback to pin-based interrupts mode if MSI
interrupts mode fails.

RealTek's policy(on modules which work well with MSI interrupts mode) is:

> If the platform supports both MSI and pin-based, use MSI.
> If the platform supports MSI only, use MSI.
> If the platform supports pin-based only, use pin-based.

Also as RealTek's testing results, RTL8188EE and RTL8723BE work well
with both MSI mode and pin-based mode fallback.
Signed-off-by: NAdam Lee <adam.lee@canonical.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

It has been observed that system hangs during suspend, if host
sleep activation fails due to a missing interrupt from firmware.
Use timeout variant, so that the thread will be woken up when
timer expires.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When a thread is interrupted by signal, all
wait_event_interruptible calls after queueing commands return
an error. Numbers of commands in pending queue are increased
in this case. Sometimes all commands nodes in pool are filled.

We will cancel pending commands when signal is received.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When scan request is received, scan commands are prepared and
queued into scan pending queue. There is a corner case when
command nodes are full. So we stop queueing further scan
commands and return an error. This patch makes sure that
currently queued commands in scan pending queue are also freed
in this case.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Daniel Borkmann says:

====================
BPF updates

We sat down and have heavily reworked the whole previous patchset
from v10 [1] to address all comments/concerns. This patchset therefore
*replaces* the internal BPF interpreter with the new layout as
discussed in [1], and migrates some exotic callers to properly use the
BPF API for a transparent upgrade. All other callers that already use
the BPF API in a way it should be used, need no further changes to run
the new internals. We also removed the sysctl knob entirely, and do not
expose any structure to userland, so that implementation details only
reside in kernel space. Since we are replacing the interpreter we had
to migrate seccomp in one patch along with the interpreter to not break
anything. When attaching a new filter, the flow can be described as
following: i) test if jit compiler is enabled and can compile the user
BPF, ii) if so, then go for it, iii) if not, then transparently migrate
the filter into the new representation, and run it in the interpreter.
Also, we have scratched the jit flag from the len attribute and made it
as initial patch in this series as Pablo has suggested in the last
feedback, thanks. For details, please refer to the patches themselves.

We did extensive testing of BPF and seccomp on the new interpreter
itself and also on the user ABIs and could not find any issues; new
performance numbers as posted in patch 8 are also still the same.

Please find more details in the patches themselves.

For all the previous history from v1 to v10, see [1]. We have decided
to drop the v11 as we have pedantically reworked the set, but of course,
included all previous feedback.

v3 -> v4:
 - Applied feedback from Dave regarding swap insns
 - Rebased on net-next
v2 -> v3:
 - Rebased to latest net-next (i.e. w/ rxhash->hash rename)
 - Fixed patch 8/9 commit message/doc as suggested by Dave
 - Rest is unchanged
v1 -> v2:
 - Rebased to latest net-next
 - Added static to ptp_filter as suggested by Dave
 - Fixed a typo in patch 8's commit message
 - Rest unchanged

Thanks !

  [1] http://thread.gmane.org/gmane.linux.kernel/1665858
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>