The user tool modinfo is used to get information on kernel modules, including a
description where it is available.
This patch adds a brief MODULE_DESCRIPTION to netfilter kernel modules
(descriptions taken from Kconfig file or code comments)
Signed-off-by: Rob Gill <rrobgill@protonmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
When using ip_set with counters and comment, traffic causes the kernel
to panic on 32-bit ARM:
Alignment trap: not handling instruction e1b82f9f at [<bf01b0dc>]
Unhandled fault: alignment exception (0x221) at 0xea08133c
PC is at ip_set_match_extensions+0xe0/0x224 [ip_set]
The problem occurs when we try to update the 64-bit counters - the
faulting address above is not 64-bit aligned. The problem occurs
due to the way elements are allocated, for example:
set->dsize = ip_set_elem_len(set, tb, 0, 0);
map = ip_set_alloc(sizeof(*map) + elements * set->dsize);
If the element has a requirement for a member to be 64-bit aligned,
and set->dsize is not a multiple of 8, but is a multiple of four,
then every odd numbered elements will be misaligned - and hitting
an atomic64_add() on that element will cause the kernel to panic.
ip_set_elem_len() must return a size that is rounded to the maximum
alignment of any extension field stored in the element. This change
ensures that is the case.
Fixes: 95ad1f4a93 ("netfilter: ipset: Fix extension alignment")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The user tool modinfo is used to get information on kernel modules, including a
description where it is available.
This patch adds a brief MODULE_DESCRIPTION to the following modules:
9p
drop_monitor
esp4_offload
esp6_offload
fou
fou6
ila
sch_fq
sch_fq_codel
sch_hhf
Signed-off-by: Rob Gill <rrobgill@protonmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Schmidt says:
====================
pull-request: ieee802154 for net 2020-06-19
An update from ieee802154 for your *net* tree.
Just two small maintenance fixes to update references to the new project
homepage.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Since iproute2 commit f72c3ad00f3b ("tc: m_tunnel_key: add options
support for vxlan"), the geneve opt output use key word "geneve_opts"
instead of "geneve_opt". To make compatibility for both old and new
iproute2, let's accept both "geneve_opt" and "geneve_opts".
Suggested-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Tested-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Typically the firmware takes care that tp->ocp_base is reset to its
default value. That's not the case (at least) for RTL8117.
As a result subsequent PHY access reads/writes the wrong page and
the link is broken. Fix this be resetting tp->ocp_base explicitly.
Fixes: 229c1e0dfd ("r8169: load firmware for RTL8168fp/RTL8117")
Reported-by: Aaron Ma <mapengyu@gmail.com>
Tested-by: Aaron Ma <mapengyu@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Continue the reset path when partner adapter is not ready or H_CLOSED is
returned from reset crq. This patch allows the CRQ init to proceed to
establish a valid CRQ for traffic to flow after reset.
Signed-off-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Even with moving netif_tx_disable() to an earlier point when
taking down the queues for a reconfiguration, we still end
up with the occasional netdev watchdog Tx Timeout complaint.
The old method of using netif_trans_update() works fine for
queue 0, but has no effect on the remaining queues. Using
netif_device_detach() allows us to signal to the watchdog to
ignore us for the moment.
Fixes: beead698b1 ("ionic: Add the basic NDO callbacks for netdev support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Acked-by: Jonathan Toppins <jtoppins@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ETF qdisc can queue skbs that it could not pace on the errqueue.
Address a few issues in the selftest
- recv buffer size was too small, and incorrectly calculated
- compared errno to ee_code instead of ee_errno
- missed invalid request error type
v2:
- fix a few checkpatch --strict indentation warnings
Fixes: ea6a547669 ("selftests/net: make so_txtime more robust to timer variance")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The max MTU limit defined for ibmveth is not accounting for
virtual ethernet buffer overhead, which is twenty-two additional
bytes set aside for the ethernet header and eight additional bytes
of an opaque handle reserved for use by the hypervisor. Update the
max MTU to reflect this overhead.
Fixes: d894be57ca ("ethernet: use net core MTU range checking in more drivers")
Fixes: 110447f826 ("ethernet: fix min/max MTU typos")
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
wenxu says:
====================
several fixes for indirect flow_blocks offload
v2:
patch2: store the cb_priv of representor to the flow_block_cb->indr.cb_priv
in the driver. And make the correct check with the statments
this->indr.cb_priv == cb_priv
patch4: del the driver list only in the indriect cleanup callbacks
v3:
add the cover letter and changlogs.
v4:
collapsed 1/4, 2/4, 4/4 in v3 to one fix
Add the prepare patch 1 and 2
v5:
patch1: place flow_indr_block_cb_alloc() right before
flow_indr_dev_setup_offload() to avoid moving flow_block_indr_init()
This series fixes commit 1fac52da59 ("net: flow_offload: consolidate
indirect flow_block infrastructure") that revists the flow_block
infrastructure.
patch #1#2: prepare for fix patch #3
add and use flow_indr_block_cb_alloc/remove function
patch #3: fix flow_indr_dev_unregister path
If the representor is removed, then identify the indirect flow_blocks
that need to be removed by the release callback and the port representor
structure. To identify the port representor structure, a new
indr.cb_priv field needs to be introduced. The flow_block also needs to
be removed from the driver list from the cleanup path
patch#4 fix block->nooffloaddevcnt warning dmesg log.
When a indr device add in offload success. The block->nooffloaddevcnt
should be 0. After the representor go away. When the dir device go away
the flow_block UNBIND operation with -EOPNOTSUPP which lead the warning
demesg log.
The block->nooffloaddevcnt should always count for indr block.
even the indr block offload successful. The representor maybe
gone away and the ingress qdisc can work in software mode.
====================
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the representor is removed, then identify the indirect flow_blocks
that need to be removed by the release callback and the port representor
structure. To identify the port representor structure, a new
indr.cb_priv field needs to be introduced. The flow_block also needs to
be removed from the driver list from the cleanup path.
Fixes: 1fac52da59 ("net: flow_offload: consolidate indirect flow_block infrastructure")
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prepare fix the bug in the next patch. use flow_indr_block_cb_alloc/remove
function and remove the __flow_block_indr_binding.
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add flow_indr_block_cb_alloc/remove function for next fix patch.
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, trying to change the DF parameter of a geneve device does
nothing:
# ip -d link show geneve1
14: geneve1: <snip>
link/ether <snip>
geneve id 1 remote 10.0.0.1 ttl auto df set dstport 6081 <snip>
# ip link set geneve1 type geneve id 1 df unset
# ip -d link show geneve1
14: geneve1: <snip>
link/ether <snip>
geneve id 1 remote 10.0.0.1 ttl auto df set dstport 6081 <snip>
We just need to update the value in geneve_changelink.
Fixes: a025fb5f49 ("geneve: Allow configuration of DF behaviour")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
VLAN tag insertion/extraction offload is correctly
activated at probe time but deactivation of this feature
(i.e. via ethtool) is broken. Toggling works only for
Tx/Rx ring 0 of a PF, and is ignored for the other rings,
including the VF rings.
To fix this, the existing VLAN offload toggling code
was extended to all the rings assigned to a netdevice,
instead of the default ring 0 (likely a leftover from the
early validation days of this feature). And the code was
moved to the common set_features() function to fix toggling
for the VF driver too.
Fixes: d4fd0404c1 ("enetc: Introduce basic PF and VF ENETC ethernet drivers")
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Undo previously done operation in case macb_phylink_connect()
fails. Since macb_reset_hw() is the 1st undo operation the
napi_exit label was renamed to reset_hw.
Fixes: 7897b071ac ("net: macb: convert to phylink")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'rxrpc-fixes-20200618' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Performance drop fix and other fixes
Here are three fixes for rxrpc:
(1) Fix a trace symbol mapping. It doesn't seem to let you map to "".
(2) Fix the handling of the remote receive window size when it increases
beyond the size we can support for our transmit window.
(3) Fix a performance drop caused by retransmitted packets being
accidentally marked as already ACK'd.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: phy: MDIO bus scanning fixes
This patch series fixes two problems with the current MDIO bus scanning
logic which was identified while moving from 4.9 to 5.4 on devices that
do rely on scanning the MDIO bus at runtime because they use pluggable
cards.
Changes in v2:
- added comment explaining the special value of -ENODEV
- added Andrew's Reviewed-by tag
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 02a6efcab6 ("net: phy: allow scanning busses with missing
phys") added a special condition to return -ENODEV in case -ENODEV or
-EIO was returned from the first read of the MII_PHYSID1 register.
In case the MDIO bus data line pull-up is not strong enough, the MDIO
bus controller will not flag this as a read error. This can happen when
a pluggable daughter card is not connected and weak internal pull-ups
are used (since that is the only option, otherwise the pins are
floating).
The second read of MII_PHYSID2 will be correctly flagged an error
though, but now we will return -EIO which will be treated as a hard
error, thus preventing MDIO bus scanning loops to continue succesfully.
Apply the same logic to both register reads, thus allowing the scanning
logic to proceed.
Fixes: 02a6efcab6 ("net: phy: allow scanning busses with missing phys")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 209c65b61d ("drivers/of/of_mdio.c:fix of_mdiobus_register()")
introduced a break of the loop on the premise that a successful
registration should exit the loop. The premise is correct but not to
code, because rc && rc != -ENODEV is just a special error condition,
that means we would exit the loop even with rc == -ENODEV which is
absolutely not correct since this is the error code to indicate to the
MDIO bus layer that scanning should continue.
Fix this by explicitly checking for rc = 0 as the only valid condition
to break out of the loop.
Fixes: 209c65b61d ("drivers/of/of_mdio.c:fix of_mdiobus_register()")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert says:
====================
pull request (net): ipsec 2020-06-19
1) Fix double ESP trailer insertion in IPsec crypto offload if
netif_xmit_frozen_or_stopped is true. From Huy Nguyen.
2) Merge fixup for "remove output_finish indirection from
xfrm_state_afinfo". From Stephen Rothwell.
3) Select CRYPTO_SEQIV for ESP as this is needed for GCM and several
other encryption algorithms. Also modernize the crypto algorithm
selections for ESP and AH, remove those that are maked as "MUST NOT"
and add those that are marked as "MUST" be implemented in RFC 8221.
From Eric Biggers.
Please note the merge conflict between commit:
a7f7f6248d ("treewide: replace '---help---' in Kconfig files with 'help'")
from Linus' tree and commits:
7d4e391959 ("esp, ah: consolidate the crypto algorithm selections")
be01369859 ("esp, ah: modernize the crypto algorithm selections")
from the ipsec tree.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2020-06-18
This series contains fixes to ixgbe, i40e and ice driver.
Ciara fixes up the ixgbe, i40e and ice drivers to protect access when
allocating and freeing the rings. In addition, made use of READ_ONCE
when reading the rings prior to accessing the statistics pointer.
Björn fixes a crash where the receive descriptor ring allocation was
moved to a different function, which broke the ethtool set_ringparam()
hook.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When the AF_XDP buffer allocator was introduced, the Rx SW ring
"rx_bi" allocation was moved from i40e_setup_rx_descriptors()
function, and was instead done in the i40e_configure_rx_ring()
function.
This broke the ethtool set_ringparam() hook for changing the Rx
descriptor count, which was relying on i40e_setup_rx_descriptors() to
handle the allocation.
Fix this by adding an explicit i40e_alloc_rx_bi() call to
i40e_set_ringparam().
Fixes: be1222b585 ("i40e: Separate kernel allocated rx_bi rings from AF_XDP rings")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The READ_ONCE macro is used when reading rings prior to accessing the
statistics pointer. The corresponding WRITE_ONCE usage when allocating and
freeing the rings to ensure protected access was not in place. Introduce
this.
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
READ_ONCE should be used when reading rings prior to accessing the
statistics pointer. Introduce this as well as the corresponding WRITE_ONCE
usage when allocating and freeing the rings, to ensure protected access.
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
READ_ONCE should be used when reading rings prior to accessing the
statistics pointer. Introduce this as well as the corresponding WRITE_ONCE
usage when allocating and freeing the rings, to ensure protected access.
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Commit 3b33583265 ("net: Add fraglist GRO/GSO feature flags") missed
an entry for NETIF_F_GSO_FRAGLIST in netdev_features_strings array. As
a result, fraglist GSO feature is not shown in 'ethtool -k' output and
can't be toggled on/off.
The fix is trivial.
Fixes: 3b33583265 ("net: Add fraglist GRO/GSO feature flags")
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver function tg3_io_error_detected() calls napi_disable twice,
without an intervening napi_enable, when the number of EEH errors exceeds
eeh_max_freezes, resulting in an indefinite sleep while holding rtnl_lock.
Add check for pcierr_recovery which skips code already executed for the
"Frozen" state.
Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Code to handle multiproto configuration is missing.
Fixes: 4b5f67232d ("net: Special handling for IP & MPLS")
Signed-off-by: Martin <martin.varghese@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann says:
====================
s390/qeth: fixes 2020-06-17
please apply the following patch series for qeth to netdev's net tree.
The first patch fixes a regression in the error handling for a specific
cmd type. I have some follow-ups queued up for net-next to clean this
up properly...
The second patch fine-tunes the HW offload restrictions that went in
with this merge window. In some setups we don't need to apply them.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When a device is configured with ISOLATION_MODE_FWD, traffic never goes
through the internal switch. Don't apply the offload restrictions in
this case.
Fixes: c619e9a6f5 ("s390/qeth: don't use restricted offloads for local traffic")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current(?) OSA devices also store their cmd-specific return codes for
SET_ACCESS_CONTROL cmds into the top-level cmd->hdr.return_code.
So once we added stricter checking for the top-level field a while ago,
none of the error logic that rolls back the user's configuration to its
old state is applied any longer.
For this specific cmd, go back to the old model where we peek into the
cmd structure even though the top-level field indicated an error.
Fixes: 686c97ee29 ("s390/qeth: fix error handling in adapter command callbacks")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paolo Abeni says:
====================
mptcp: cope with syncookie on MP_JOINs
Currently syncookies on MP_JOIN connections are not handled correctly: the
connections fallback to TCP and are kept alive instead of resetting them at
fallback time.
The first patch propagates the required information up to syn_recv_sock time,
and the 2nd patch addresses the unifying the error path for all MP_JOIN
requests.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently any MPTCP socket using syn cookies will fallback to
TCP at 3rd ack time. In case of MP_JOIN requests, the RFC mandate
closing the child and sockets, but the existing error paths
do not handle the syncookie scenario correctly.
Address the issue always forcing the child shutdown in case of
MP_JOIN fallback.
Fixes: ae2dd71649 ("mptcp: handle tcp fallback when using syn cookies")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The msk ownership is transferred to the child socket at
3rd ack time, so that we avoid more lookups later. If the
request does not reach the 3rd ack, the MSK reference is
dropped at request sock release time.
As a side effect, fallback is now tracked by a NULL msk
reference instead of zeroed 'mp_join' field. This will
simplify the next patch.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ie.,
$ ifconfig eth0 6.6.6.6 netmask 255.255.255.0
$ ip rule add from 6.6.6.6 table 6666
$ ip route add 9.9.9.9 via 6.6.6.6
$ ping -I 6.6.6.6 9.9.9.9
PING 9.9.9.9 (9.9.9.9) from 6.6.6.6 : 56(84) bytes of data.
3 packets transmitted, 0 received, 100% packet loss, time 2079ms
$ arp
Address HWtype HWaddress Flags Mask Iface
6.6.6.6 (incomplete) eth0
The arp request address is error, this is because fib_table_lookup in
fib_check_nh lookup the destnation 9.9.9.9 nexthop, the scope of
the fib result is RT_SCOPE_LINK,the correct scope is RT_SCOPE_HOST.
Here I add a check of whether this is RT_TABLE_MAIN to solve this problem.
Fixes: 3bfd847203 ("net: Use passed in table for nexthop lookups")
Signed-off-by: guodeqing <geffrey.guo@huawei.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean says:
====================
Fix VLAN checks for SJA1105 DSA tc-flower filters
This fixes a ridiculous situation where the driver, in VLAN-unaware
mode, would refuse accepting any tc filter:
tc filter replace dev sw1p3 ingress flower skip_sw \
dst_mac 42:be:24:9b:76:20 \
action gate (...)
Error: sja1105: Can only gate based on {DMAC, VID, PCP}.
tc filter replace dev sw1p3 ingress protocol 802.1Q flower skip_sw \
vlan_id 1 vlan_prio 0 dst_mac 42:be:24:9b:76:20 \
action gate (...)
Error: sja1105: Can only gate based on DMAC.
So, without changing the VLAN awareness state, it says it doesn't want
VLAN-aware rules, and it doesn't want VLAN-unaware rules either. One
would say it's in Schrodinger's state...
Now, the situation has been made worse by commit 7f14937fac ("net:
dsa: sja1105: keep the VLAN awareness state in a driver variable"),
which made VLAN awareness a ternary attribute, but after inspecting the
code from before that patch with a truth table, it looks like the
logical bug was there even before.
While attempting to fix this, I also noticed some leftover debugging
code in one of the places that needed to be fixed. It would have
appeared in the context of patch 3/3 anyway, so I decided to create a
patch that removes it.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This action requires the VLAN awareness state of the switch to be of the
same type as the key that's being added:
- If the switch is unaware of VLAN, then the tc filter key must only
contain the destination MAC address.
- If the switch is VLAN-aware, the key must also contain the VLAN ID and
PCP.
But this check doesn't work unless we verify the VLAN awareness state on
both the "if" and the "else" branches.
Fixes: 834f8933d5 ("net: dsa: sja1105: implement tc-gate using time-triggered virtual links")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This action requires the VLAN awareness state of the switch to be of the
same type as the key that's being added:
- If the switch is unaware of VLAN, then the tc filter key must only
contain the destination MAC address.
- If the switch is VLAN-aware, the key must also contain the VLAN ID and
PCP.
But this check doesn't work unless we verify the VLAN awareness state on
both the "if" and the "else" branches.
Fixes: dfacc5a23e ("net: dsa: sja1105: support flow-based redirection via virtual links")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This shouldn't be there.
Fixes: 834f8933d5 ("net: dsa: sja1105: implement tc-gate using time-triggered virtual links")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Davide Caratti says:
====================
two fixes for 'act_gate' control plane
- patch 1/2 attempts to fix the error path of tcf_gate_init() when users
try to configure 'act_gate' rules with wrong parameters
- patch 2/2 is a follow-up of a recent fix for NULL dereference in
the error path of tcf_gate_init()
further work will introduce a tdc test for 'act_gate'.
changes since v2:
- fix undefined behavior in patch 1/2
- improve comment in patch 2/2
changes since v1:
coding style fixes in patch 1/2 and 2/2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
