Commit Graph

70621 Commits

Author SHA1 Message Date
Andrea Mayer
848f3c0d47 seg6: add NEXT-C-SID support for SRv6 End behavior
The NEXT-C-SID mechanism described in [1] offers the possibility of
encoding several SRv6 segments within a single 128 bit SID address. Such
a SID address is called a Compressed SID (C-SID) container. In this way,
the length of the SID List can be drastically reduced.

A SID instantiated with the NEXT-C-SID flavor considers an IPv6 address
logically structured in three main blocks: i) Locator-Block; ii)
Locator-Node Function; iii) Argument.

                        C-SID container
+------------------------------------------------------------------+
|     Locator-Block      |Loc-Node|            Argument            |
|                        |Function|                                |
+------------------------------------------------------------------+
<--------- B -----------> <- NF -> <------------- A --------------->

   (i) The Locator-Block can be any IPv6 prefix available to the provider;

  (ii) The Locator-Node Function represents the node and the function to
       be triggered when a packet is received on the node;

 (iii) The Argument carries the remaining C-SIDs in the current C-SID
       container.

The NEXT-C-SID mechanism relies on the "flavors" framework defined in
[2]. The flavors represent additional operations that can modify or
extend a subset of the existing behaviors.

This patch introduces the support for flavors in SRv6 End behavior
implementing the NEXT-C-SID one. An SRv6 End behavior with NEXT-C-SID
flavor works as an End behavior but it is capable of processing the
compressed SID List encoded in C-SID containers.

An SRv6 End behavior with NEXT-C-SID flavor can be configured to support
user-provided Locator-Block and Locator-Node Function lengths. In this
implementation, such lengths must be evenly divisible by 8 (i.e. must be
byte-aligned), otherwise the kernel informs the user about invalid
values with a meaningful error code and message through netlink_ext_ack.

If Locator-Block and/or Locator-Node Function lengths are not provided
by the user during configuration of an SRv6 End behavior instance with
NEXT-C-SID flavor, the kernel will choose their default values i.e.,
32-bit Locator-Block and 16-bit Locator-Node Function.

[1] - https://datatracker.ietf.org/doc/html/draft-ietf-spring-srv6-srh-compression
[2] - https://datatracker.ietf.org/doc/html/rfc8986

Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 12:33:22 +02:00
Andrea Mayer
e2a8ecc451 seg6: add netlink_ext_ack support in parsing SRv6 behavior attributes
An SRv6 behavior instance can be set up using mandatory and/or optional
attributes.
In the setup phase, each supplied attribute is parsed and processed. If
the parsing operation fails, the creation of the behavior instance stops
and an error number/code is reported to the user.  In many cases, it is
challenging for the user to figure out exactly what happened by relying
only on the error code.

For this reason, we add the support for netlink_ext_ack in parsing SRv6
behavior attributes. In this way, when an SRv6 behavior attribute is
parsed and an error occurs, the kernel can send a message to the
userspace describing the error through a meaningful text message in
addition to the classic error code.

Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 12:33:22 +02:00
Richard Gobert
cb628a9a7e net-next: gro: Fix use of skb_gro_header_slow
In the cited commit, the function ipv6_gro_receive was accidentally
changed to use skb_gro_header_slow, without attempting the fast path.
Fix it.

Fixes: 35ffb66547 ("net: gro: skb_gro_header helper function")
Signed-off-by: Richard Gobert <richardbgobert@gmail.com>
Link: https://lore.kernel.org/r/20220911184835.GA105063@debian
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 11:47:25 +02:00
Vladimir Oltean
acc43b7bf5 net: dsa: allow masters to join a LAG
There are 2 ways in which a DSA user port may become handled by 2 CPU
ports in a LAG:

(1) its current DSA master joins a LAG

 ip link del bond0 && ip link add bond0 type bond mode 802.3ad
 ip link set eno2 master bond0

When this happens, all user ports with "eno2" as DSA master get
automatically migrated to "bond0" as DSA master.

(2) it is explicitly configured as such by the user

 # Before, the DSA master was eno3
 ip link set swp0 type dsa master bond0

The design of this configuration is that the LAG device dynamically
becomes a DSA master through dsa_master_setup() when the first physical
DSA master becomes a LAG slave, and stops being so through
dsa_master_teardown() when the last physical DSA master leaves.

A LAG interface is considered as a valid DSA master only if it contains
existing DSA masters, and no other lower interfaces. Therefore, we
mainly rely on method (1) to enter this configuration.

Each physical DSA master (LAG slave) retains its dev->dsa_ptr for when
it becomes a standalone DSA master again. But the LAG master also has a
dev->dsa_ptr, and this is actually duplicated from one of the physical
LAG slaves, and therefore needs to be balanced when LAG slaves come and
go.

To the switch driver, putting DSA masters in a LAG is seen as putting
their associated CPU ports in a LAG.

We need to prepare cross-chip host FDB notifiers for CPU ports in a LAG,
by calling the driver's ->lag_fdb_add method rather than ->port_fdb_add.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 10:32:36 +02:00
Vladimir Oltean
2e359b00a1 net: dsa: propagate extack to port_lag_join
Drivers could refuse to offload a LAG configuration for a variety of
reasons, mainly having to do with its TX type. Additionally, since DSA
masters may now also be LAG interfaces, and this will translate into a
call to port_lag_join on the CPU ports, there may be extra restrictions
there. Propagate the netlink extack to this DSA method in order for
drivers to give a meaningful error message back to the user.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 10:32:36 +02:00
Vladimir Oltean
13eccc1bbb net: dsa: suppress device links to LAG DSA masters
These don't work (print a harmless error about the operation failing)
and make little sense to have anyway, because when a LAG DSA master goes
away, we will introduce logic to move our CPU port back to the first
physical DSA master. So suppress these device links in preparation for
adding support for LAG DSA masters.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 10:32:36 +02:00
Vladimir Oltean
cfeb84a52f net: dsa: suppress appending ethtool stats to LAG DSA masters
Similar to the discussion about tracking the admin/oper state of LAG DSA
masters, we have the problem here that struct dsa_port *cpu_dp caches a
single pair of orig_ethtool_ops and netdev_ops pointers.

So if we call dsa_master_setup(bond0, cpu_dp) where cpu_dp is also the
dev->dsa_ptr of one of the physical DSA masters, we'd effectively
overwrite what we cached from that physical netdev with what replaced
from the bonding interface.

We don't need DSA ethtool stats on the bonding interface when used as
DSA master, it's good enough to have them just on the physical DSA
masters, so suppress this logic.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 10:32:36 +02:00
Vladimir Oltean
6e61b55c6d net: dsa: don't keep track of admin/oper state on LAG DSA masters
We store information about the DSA master's state in
cpu_dp->master_admin_up and cpu_dp->master_oper_up, and this assumes a
bijective association between a CPU port and a DSA master.

However, when we have CPU ports in a LAG (and DSA masters in a LAG too),
the way in which we set up things is that the physical DSA masters still
have dev->dsa_ptr pointing to our cpu_dp, but the bonding/team device
itself also has its dev->dsa_ptr pointing towards one of the CPU port
structures (the first one).

So logically speaking, that first cpu_dp can't keep track of both the
physical master's admin/oper state, and of the bonding master's state.

This isn't even needed; the reason why we keep track of the DSA master's
state is to know when it is available for Ethernet-based register access.
For that use case, we don't even need LAG; we just need to decide upon
one of the physical DSA masters (if there is more than 1 available) and
use that.

This change suppresses dsa_tree_master_{admin,oper}_state_change() calls
on LAG DSA masters (which will be supported in a future change), to
allow the tracking of just physical DSA masters.

Link: https://lore.kernel.org/netdev/628cc94d.1c69fb81.15b0d.422d@mx.google.com/
Suggested-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 10:32:35 +02:00
Vladimir Oltean
95f510d0b7 net: dsa: allow the DSA master to be seen and changed through rtnetlink
Some DSA switches have multiple CPU ports, which can be used to improve
CPU termination throughput, but DSA, through dsa_tree_setup_cpu_ports(),
sets up only the first one, leading to suboptimal use of hardware.

The desire is to not change the default configuration but to permit the
user to create a dynamic mapping between individual user ports and the
CPU port that they are served by, configurable through rtnetlink. It is
also intended to permit load balancing between CPU ports, and in that
case, the foreseen model is for the DSA master to be a bonding interface
whose lowers are the physical DSA masters.

To that end, we create a struct rtnl_link_ops for DSA user ports with
the "dsa" kind. We expose the IFLA_DSA_MASTER link attribute that
contains the ifindex of the newly desired DSA master.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 10:32:35 +02:00
Vladimir Oltean
8f6a19c031 net: dsa: introduce dsa_port_get_master()
There is a desire to support for DSA masters in a LAG.

That configuration is intended to work by simply enslaving the master to
a bonding/team device. But the physical DSA master (the LAG slave) still
has a dev->dsa_ptr, and that cpu_dp still corresponds to the physical
CPU port.

However, we would like to be able to retrieve the LAG that's the upper
of the physical DSA master. In preparation for that, introduce a helper
called dsa_port_get_master() that replaces all occurrences of the
dp->cpu_dp->master pattern. The distinction between LAG and non-LAG will
be made later within the helper itself.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 10:32:35 +02:00
Wojciech Drewek
2c1befaced flow_offload: Introduce flow_match_l2tpv3
Allow to offload L2TPv3 filters by adding flow_rule_match_l2tpv3.
Drivers can extract L2TPv3 specific fields from now on.

Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 09:13:38 +02:00
Wojciech Drewek
8b189ea08c net/sched: flower: Add L2TPv3 filter
Add support for matching on L2TPv3 session ID.
Session ID can be specified only when ip proto was
set to IPPROTO_L2TP.

Example filter:
  # tc filter add dev $PF1 ingress prio 1 protocol ip \
      flower \
        ip_proto l2tp \
        l2tpv3_sid 1234 \
        skip_sw \
      action mirred egress redirect dev $VF1_PR

Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 09:13:38 +02:00
Wojciech Drewek
dda2fa08a1 flow_dissector: Add L2TPv3 dissectors
Allow to dissect L2TPv3 specific field which is:
- session ID (32 bits)

L2TPv3 might be transported over IP or over UDP,
this implementation is only about L2TPv3 over IP.
IP protocol carries L2TPv3 when ip_proto is
IPPROTO_L2TP (115).

Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-20 09:13:38 +02:00
Nathan Huckleberry
8bb7c4f8c9 openvswitch: Change the return type for vport_ops.send function hook to int
All usages of the vport_ops struct have the .send field set to
dev_queue_xmit or internal_dev_recv.  Since most usages are set to
dev_queue_xmit, the function hook should match the signature of
dev_queue_xmit.

The only call to vport_ops->send() is in net/openvswitch/vport.c and it
throws away the return value.

This mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.

Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://lore.kernel.org/r/20220913230739.228313-1-nhuck@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-19 18:28:50 -07:00
Jakub Kicinski
4dccf41d79 This cleanup patchset includes the following patches:
- bump version strings, by Simon Wunderlich
 
  - drop unused headers in trace.h, by Sven Eckelmann
 
  - drop initialization of flexible ethtool_link_ksettings,
    by Sven Eckelmann
 
  - remove unused struct definitions, by Marek Lindner
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Merge tag 'batadv-next-pullrequest-20220916' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
This cleanup patchset includes the following patches:

 - bump version strings, by Simon Wunderlich

 - drop unused headers in trace.h, by Sven Eckelmann

 - drop initialization of flexible ethtool_link_ksettings,
   by Sven Eckelmann

 - remove unused struct definitions, by Marek Lindner

* tag 'batadv-next-pullrequest-20220916' of git://git.open-mesh.org/linux-merge:
  batman-adv: remove unused struct definitions
  batman-adv: Drop initialization of flexible ethtool_link_ksettings
  batman-adv: Drop unused headers in trace.h
  batman-adv: Start new development cycle
====================

Link: https://lore.kernel.org/r/20220916161454.1413154-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-19 18:16:04 -07:00
Xiu Jianfeng
f0bd32c833 net: rds: add missing __init/__exit annotations to module init/exit funcs
Add missing __init/__exit annotations to module init/exit funcs.

Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Link: https://lore.kernel.org/r/20220909091840.247946-1-xiujianfeng@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-19 17:58:53 -07:00
Gaosheng Cui
9621e74f39 rxrpc: remove rxrpc_max_call_lifetime declaration
rxrpc_max_call_lifetime has been removed since
commit a158bdd324 ("rxrpc: Fix call timeouts"),
so remove it.

Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20220909064042.1149404-1-cuigaosheng1@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-19 17:58:47 -07:00
David S. Miller
5947b7f794 linux-can-next-for-6.1-20220915
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Merge tag 'linux-can-next-for-6.1-20220915' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
Sept. 15, 2022, 8:19 a.m. UTC
Hello Jakub, hello David,

this is a pull request of 23 patches for net-next/master.

the first 2 patches are by me and fix a typo in the rx-offload helper
and the flexcan driver.

Christophe JAILLET's patch cleans up the error handling in
rcar_canfd driver's probe function.

Kenneth Lee's patch converts the kvaser_usb driver from kcalloc() to
kzalloc().

Biju Das contributes 2 patches to the sja1000 driver which update the
DT bindings and support for the RZ/N1 SJA1000 CAN controller.

Jinpeng Cui provides 2 patches that remove redundant variables from
the sja1000 and kvaser_pciefd driver.

2 patches by John Whittington and me add hardware timestamp support to
the gs_usb driver.

Gustavo A. R. Silva's patch converts the etas_es58x driver to make use
of DECLARE_FLEX_ARRAY().

Krzysztof Kozlowski's patch cleans up the sja1000 DT bindings.

Dario Binacchi fixes his invalid email in the flexcan driver
documentation.

Ziyang Xuan contributes 2 patches that clean up the CAN RAW protocol.

Yang Yingliang's patch switches the flexcan driver to dev_err_probe().

The last 7 patches are by Oliver Hartkopp and add support for the next
generation of the CAN protocol: CAN with eXtended data Length (CAN XL).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-16 21:56:27 +01:00
Jilin Yuan
454e7b1384 vsock/vmci: fix repeated words in comments
Delete the redundant word 'that'.

Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-16 09:31:29 +01:00
Nicolas Dichtel
7e6e1b5716 rtnetlink: advertise allmulti counter
Like what was done with IFLA_PROMISCUITY, add IFLA_ALLMULTI to advertise
the allmulti counter.
The flag IFF_ALLMULTI is advertised only if it was directly set by a
userland app.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-16 09:28:44 +01:00
Thomas Haller
3eb9a6b650 mptcp: account memory allocation in mptcp_nl_cmd_add_addr() to user
Now that non-root users can configure MPTCP endpoints, account
the memory allocation to the user.

Signed-off-by: Thomas Haller <thaller@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-15 12:01:02 +02:00
Thomas Haller
d156971854 mptcp: allow privileged operations from user namespaces
GENL_ADMIN_PERM checks that the user has CAP_NET_ADMIN in the initial
namespace by calling netlink_capable(). Instead, use GENL_UNS_ADMIN_PERM
which uses netlink_ns_capable(). This checks that the caller has
CAP_NET_ADMIN in the current user namespace.

See also

  commit 4a92602aa1 ("openvswitch: allow management from inside user namespaces")

which introduced this mechanism. See also

  commit 5617c6cd6f ("nl80211: Allow privileged operations from user namespaces")

which introduced this for nl80211.

Signed-off-by: Thomas Haller <thaller@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-15 12:01:02 +02:00
Geliang Tang
0522b424c4 mptcp: add do_check_data_fin to replace copied
This patch adds a new bool variable 'do_check_data_fin' to replace the
original int variable 'copied' in __mptcp_push_pending(), check it to
determine whether to call __mptcp_check_send_data_fin().

Suggested-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-15 12:01:02 +02:00
Matthieu Baerts
5efbf6f7f0 mptcp: add mptcp_for_each_subflow_safe helper
Similar to mptcp_for_each_subflow(): this is clearer now that the _safe
version is used in multiple places.

Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-15 12:01:02 +02:00
Oliver Hartkopp
626332696d can: raw: add CAN XL support
Enable CAN_RAW sockets to read and write CAN XL frames analogue to the
CAN FD extension (new CAN_RAW_XL_FRAMES sockopt).

A CAN XL network interface is capable to handle Classical CAN, CAN FD and
CAN XL frames. When CAN_RAW_XL_FRAMES is enabled, the CAN_RAW socket checks
whether the addressed CAN network interface is capable to handle the
provided CAN frame.

In opposite to the fixed number of bytes for
- CAN frames (CAN_MTU = sizeof(struct can_frame))
- CAN FD frames (CANFD_MTU = sizeof(struct can_frame))
the number of bytes when reading/writing CAN XL frames depends on the
number of data bytes. For efficiency reasons the length of the struct
canxl_frame is truncated to the needed size for read/write operations.
This leads to a calculated size of CANXL_HDR_SIZE + canxl_frame::len which
is enforced on write() operations and guaranteed on read() operations.

NB: Valid length values are 1 .. 2048 (CANXL_MIN_DLEN .. CANXL_MAX_DLEN).

Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20220912170725.120748-8-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-09-15 09:08:09 +02:00
Oliver Hartkopp
fb08cba12b can: canxl: update CAN infrastructure for CAN XL frames
- add new ETH_P_CANXL ethernet protocol type
- update skb checks for CAN XL
- add alloc_canxl_skb() which now needs a data length parameter
- introduce init_can_skb_reserve() to reduce code duplication

Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20220912170725.120748-6-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-09-15 09:08:09 +02:00
Oliver Hartkopp
061834624c can: set CANFD_FDF flag in all CAN FD frame structures
To simplify the testing in user space all struct canfd_frame's provided by
the CAN subsystem of the Linux kernel now have the CANFD_FDF flag set in
canfd_frame::flags.

NB: Handcrafted ETH_P_CANFD frames introduced via PF_PACKET socket might
not set this bit correctly. During the check for sufficient headroom in
PF_PACKET sk_buffs the uninitialized CAN sk_buff data structures are filled.
In the case of a CAN FD frame the CANFD_FDF flag is set accordingly.

As the CAN frame content is already zero initialized in alloc_canfd_skb()
the obsolete initialization of cf->flags in the CTU CAN FD driver has been
removed as it would overwrite the already set CANFD_FDF flag.

Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20220912170725.120748-4-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-09-15 09:08:08 +02:00
Oliver Hartkopp
96a7457a14 can: skb: unify skb CAN frame identification helpers
Replace open coded checks for sk_buffs containing Classical CAN and
CAN FD frame structures as a preparation for CAN XL support.

With the added length check the unintended processing of CAN XL frames
having the CANXL_XLF bit set can be suppressed even when the skb->len
fits to non CAN XL frames.

The CAN_RAW socket needs a rework to use these helpers. Therefore the
use of these helpers is postponed to the CAN_RAW CAN XL integration.

The J1939 protocol gets a check for Classical CAN frames too.

Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20220912170725.120748-2-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-09-15 09:08:08 +02:00
Marek Lindner
76af7483b3 batman-adv: remove unused struct definitions
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2022-09-15 08:16:05 +02:00
Jilin Yuan
169ccf0e40 net: openvswitch: fix repeated words in comments
Delete the redundant word 'is'.

Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 11:46:28 +01:00
Zhengchao Shao
6d13a65d2a net: sched: act_vlan: get rid of tcf_vlan_walker and tcf_vlan_search
tcf_vlan_walker() and tcf_vlan_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:43 +01:00
Zhengchao Shao
f6ffa368f0 net: sched: act_tunnel_key: get rid of tunnel_key_walker and tunnel_key_search
tunnel_key_walker() and tunnel_key_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
8a35c5df28 net: sched: act_skbmod: get rid of tcf_skbmod_walker and tcf_skbmod_search
tcf_skbmod_walker() and tcf_skbmod_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
038725f9ee net: sched: act_skbedit: get rid of tcf_skbedit_walker and tcf_skbedit_search
tcf_skbedit_walker() and tcf_skbedit_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
5d6e9cb5c9 net: sched: act_simple: get rid of tcf_simp_walker and tcf_simp_search
tcf_simp_walker() and tcf_simp_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
400d66332c net: sched: act_sample: get rid of tcf_sample_walker and tcf_sample_search
tcf_sample_walker() and tcf_sample_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
0abf7f8f82 net: sched: act_police: get rid of tcf_police_walker and tcf_police_search
tcf_police_walker() and tcf_police_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
b915d86981 net: sched: act_pedit: get rid of tcf_pedit_walker and tcf_pedit_search
tcf_pedit_walker() and tcf_pedit_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
586fab1386 net: sched: act_nat: get rid of tcf_nat_walker and tcf_nat_search
tcf_nat_walker() and tcf_nat_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
7fadae53aa net: sched: act_mpls: get rid of tcf_mpls_walker and tcf_mpls_search
tcf_mpls_walker() and tcf_mpls_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
d58efc6ecc net: sched: act_mirred: get rid of tcf_mirred_walker and tcf_mirred_search
tcf_mirred_walker() and tcf_mirred_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
0a4c06f20d net: sched: act_ipt: get rid of tcf_ipt_walker/tcf_xt_walker and tcf_ipt_search/tcf_xt_search
tcf_ipt_walker()/tcf_xt_walker() and tcf_ipt_search()/tcf_xt_search() do
the same thing as generic walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
ad0cd0a85c net: sched: act_ife: get rid of tcf_ife_walker and tcf_ife_search
tcf_ife_walker() and tcf_ife_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
ae3f9fc308 net: sched: act_gate: get rid of tcf_gate_walker and tcf_gate_search
tcf_gate_walker() and tcf_gate_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:42 +01:00
Zhengchao Shao
eeb3f43e05 net: sched: act_gact: get rid of tcf_gact_walker and tcf_gact_search
tcf_gact_walker() and tcf_gact_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:41 +01:00
Zhengchao Shao
d51145dafd net: sched: act_ctinfo: get rid of tcf_ctinfo_walker and tcf_ctinfo_search
tcf_ctinfo_walker() and tcf_ctinfo_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:41 +01:00
Zhengchao Shao
cb967ace0a net: sched: act_ct: get rid of tcf_ct_walker and tcf_ct_search
tcf_ct_walker() and tcf_ct_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:41 +01:00
Zhengchao Shao
d2388df33b net: sched: act_csum: get rid of tcf_csum_walker and tcf_csum_search
tcf_csum_walker() and tcf_csum_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:41 +01:00
Zhengchao Shao
c4d2497032 net: sched: act_connmark: get rid of tcf_connmark_walker and tcf_connmark_search
tcf_connmark_walker() and tcf_connmark_search() do the same thing as
generic walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:41 +01:00
Zhengchao Shao
aa0a92f745 net: sched: act_bpf: get rid of tcf_bpf_walker and tcf_bpf_search
tcf_bpf_walker() and tcf_bpf_search() do the same thing as generic
walk/search function, so remove them.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-09 08:24:41 +01:00