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The continue statement at the end of a for-loop has no effect,
invert the if expression and remove the continue.
Addresses-Coverity: ("Continue has no effect")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The continue statement in the for-loop has no effect, remove it.
Addresses-Coverity: ("Continue has no effect")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 0571a753cb07 cancelled delayed work too late, keeping small
race. Cancel work sooner to close it completely.
Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
Fixes: 0571a753cb07 ("net: pxa168_eth: Fix a potential data race in pxa168_eth_remove")
Signed-off-by: David S. Miller <davem@davemloft.net>
Simplify the code by removing unnecessary labels and returning directly.
Signed-off-by: wengjianfeng <wengjianfeng@yulong.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simplify the return expression in the rvu_npc_fs.c
Signed-off-by: dingsenjie <dingsenjie@yulong.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Modify the label out_err to out to avoid the meanless kfree.
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently UDP tunnel devices on top of VLANs lose the ability
to offload UDP GSO. Widen the pass thru features from TSO
to all GSO_SOFTWARE.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the dwmac bindings for the Loongson-2K SoC and the LS7A
bridge chip.
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
This GMAC module is integrated into the Loongson-2K SoC and the LS7A
bridge chip.
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Li says:
====================
net: hostess_sv11: clean up some code style issues
This patchset clean up some code style issues.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Networking block comments don't use an empty /* line,
use /* Comment...
Block comments use * on subsequent lines.
Block comments use a trailing */ on a separate line.
This patch fixes the comments style issues.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
According to the chackpatch.pl,
switch and case should be at the same indent.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the checkpatch error as "foo* bar" should be "foo *bar".
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mat Martineau says:
====================
mptcp: DSS checksum support
RFC 8684 defines a DSS checksum feature that allows MPTCP to detect
middlebox interference with the MPTCP DSS header and the portion of the
data stream associated with that header. So far, the MPTCP
implementation in the Linux kernel has not supported this feature.
This patch series adds DSS checksum support. By default, the kernel will
not request checksums when sending SYN or SYN/ACK packets for MPTCP
connections. Outgoing checksum requests can be enabled with a
per-namespace net.mptcp.checksum_enabled sysctl. MPTCP connections will
now proceed with DSS checksums when the peer requests them, whether the
sysctl is enabled or not.
Patches 1-5 add checksum bits to the outgoing SYN, SYN/ACK, and data
packet headers. This includes calculating the checksum using a range of
data and the MPTCP DSS mapping for that data.
Patches 6-10 handle the checksum request in the SYN or SYN/ACK, and
receiving and verifying the DSS checksum on data packets.
Patch 11 adjusts the MPTCP-level retransmission process for checksum
compatibility.
Patches 12-14 add checksum-related MIBs, the net.mptcp.checksum_enabled
sysctl, and a checksum field to debug trace output.
Patches 15 & 16 add selftests.
The series is slightly longer than the preferred 15-patch limit that
patchwork warns about. I do try to stay below that whenever possible -
this series does implement one feature and is, I think, cohesive enough
to justify keeping it together. If it's at all problematic please let me
know!
A trivial merge conflict with net/master is introduced in patch 15: a
commit in net/master removes a couple of nearby lines of code.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new argument "-C" for the mptcp_join.sh script to set
the sysctl checksum_enabled to 1 in ns1 and ns2 to enable the data
checksum.
In chk_join_nr, check the counter of the mib for the data checksum.
Also added a new argument "-S" for the mptcp_join.sh script to start the
test cases that verify the checksum handshake:
* Sender and listener both have checksums off
* Sender and listener both have checksums on
* Sender checksums off, listener checksums on
* Sender checksums on, listener checksums off
The output looks like this:
01 checksum test 0 0 sum[ ok ] - csum [ ok ]
02 checksum test 1 1 sum[ ok ] - csum [ ok ]
03 checksum test 0 1 sum[ ok ] - csum [ ok ]
04 checksum test 1 0 sum[ ok ] - csum [ ok ]
05 no JOIN syn[ ok ] - synack[ ok ] - ack[ ok ]
sum[ ok ] - csum [ ok ]
06 single subflow, limited by client syn[ ok ] - synack[ ok ] - ack[ ok ]
sum[ ok ] - csum [ ok ]
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new argument "-C" for the mptcp_connect.sh script to
set the sysctl checksum_enabled to 1 in ns1, ns2, ns3 and ns4 to enable
the data checksum.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In mptcp_dump_mpext, dump the csum fields, csum and csum_reqd in struct
mptcp_dump_mpext too.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new sysctl, named checksum_enabled, to control
whether DSS checksum can be enabled.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added the mib for the data checksum, MPTCP_MIB_DATACSUMERR.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the MPTCP-level checksum is enabled, on re-injections we
must spool a complete DSS, or the receive side will not be
able to compute the csum and process any data.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added three new members named data_csum, csum_len and
map_csum in struct mptcp_subflow_context, implemented a new function
named mptcp_validate_data_checksum().
If the current mapping is valid and csum is enabled traverse the later
pending skbs and compute csum incrementally till the whole mapping has
been covered. If not enough data is available in the rx queue, return
MAPPING_EMPTY - that is, no data.
Next subflow_data_ready invocation will trigger again csum computation.
When the full DSS is available, validate the csum and return to the
caller an appropriate error code, to trigger subflow reset of fallback
as required by the RFC.
Additionally:
- if the csum prevence in the DSS don't match the negotiated value e.g.
csum present, but not requested, return invalid mapping to trigger
subflow reset.
- keep some csum state, to avoid re-compute the csum on the same data
when multiple rx queue traversal are required.
- clean-up the uncompleted mapping from the receive queue on close, to
allow proper subflow disposal
Co-developed-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In mptcp_parse_option, adjust the expected_opsize, and always parse the
data checksum value from the receiving DSS regardless of csum presence.
Then save it in mp_opt->csum.
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new member named csum in struct mptcp_options_received.
When parsing the MP_CAPABLE with data, if the checksum is enabled,
adjust the expected_opsize. If the receiving option length matches the
length with the data checksum, get the checksum value and save it in
mp_opt->csum. And in mptcp_incoming_options, pass it to mpext->csum.
We always parse any csum/nocsum combination and delay the presence check
to later code, to allow reset if missing.
Additionally, in the TX path, use the newly introduce ext field to avoid
MPTCP csum recomputation on TCP retransmission and unneeded csum update
on when setting the data fin_flag.
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new flag csum_reqd in struct mptcp_options_received, if
the flag MPTCP_CAP_CHECKSUM_REQD is set in the receiving MP_CAPABLE
suboption, set this flag.
In mptcp_sk_clone and subflow_finish_connect, if the csum_reqd flag is set,
enable the msk->csum_enabled flag.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new parameter name sk in mptcp_get_options().
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In mptcp_write_options, if the checksum is enabled, adjust the option
length and send out the data checksum with DSS suboption.
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the checksum is enabled, send out the data checksum with the
MP_CAPABLE suboption with data.
In mptcp_established_options_mp, save the data checksum in
opts->ext_copy.csum. In mptcp_write_options, adjust the option length and
send it out with the MP_CAPABLE suboption.
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new member csum_reqd in struct mptcp_out_options and
struct mptcp_subflow_request_sock. Initialized it with the helper
function mptcp_is_checksum_enabled().
In mptcp_write_options, if this field is enabled, send out the MP_CAPABLE
suboption with the MPTCP_CAP_CHECKSUM_REQD flag.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new member named csum in struct mptcp_ext, implemented
a new function named mptcp_generate_data_checksum().
Generate the data checksum in mptcp_sendmsg_frag, save it in mpext->csum.
Note that we must generate the csum for zero window probe, too.
Do the csum update incrementally, to avoid multiple csum computation
when the data is appended to existing skb.
Note that in a later patch we will skip unneeded csum related operation.
Changes not included here to keep the delta small.
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new member named csum_enabled in struct mptcp_sock,
used a dummy mptcp_is_checksum_enabled() helper to initialize it.
Also added a new member named mptcpi_csum_enabled in struct mptcp_info
to expose the csum_enabled flag.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrea Mayer says:
====================
seg6: add support for SRv6 End.DT46 Behavior
SRv6 End.DT46 Behavior is defined in the IETF RFC 8986 [1] along with SRv6
End.DT4 and End.DT6 Behaviors.
The proposed End.DT46 implementation is meant to support the decapsulation
of both IPv4 and IPv6 traffic coming from a *single* SRv6 tunnel.
The SRv6 End.DT46 Behavior greatly simplifies the setup and operations of
SRv6 VPNs in the Linux kernel.
- patch 1/2 is the core patch that adds support for the SRv6 End.DT46
Behavior;
- patch 2/2 adds the selftest for SRv6 End.DT46 Behavior.
The patch introducing the new SRv6 End.DT46 Behavior in iproute2 will
follow shortly.
Comments, suggestions and improvements are very welcome as always!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
this selftest is designed for evaluating the new SRv6 End.DT46 Behavior
used, in this example, for implementing IPv4/IPv6 L3 VPN use cases.
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Signed-off-by: Paolo Lungaroni <paolo.lungaroni@uniroma2.it>
Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
IETF RFC 8986 [1] includes the definition of SRv6 End.DT4, End.DT6, and
End.DT46 Behaviors.
The current SRv6 code in the Linux kernel only implements End.DT4 and
End.DT6 which can be used respectively to support IPv4-in-IPv6 and
IPv6-in-IPv6 VPNs. With End.DT4 and End.DT6 it is not possible to create a
single SRv6 VPN tunnel to carry both IPv4 and IPv6 traffic.
The proposed End.DT46 implementation is meant to support the decapsulation
of IPv4 and IPv6 traffic coming from a single SRv6 tunnel.
The implementation of the SRv6 End.DT46 Behavior in the Linux kernel
greatly simplifies the setup and operations of SRv6 VPNs.
The SRv6 End.DT46 Behavior leverages the infrastructure of SRv6 End.DT{4,6}
Behaviors implemented so far, because it makes use of a VRF device in
order to force the routing lookup into the associated routing table.
To make the End.DT46 work properly, it must be guaranteed that the routing
table used for routing lookup operations is bound to one and only one VRF
during the tunnel creation. Such constraint has to be enforced by enabling
the VRF strict_mode sysctl parameter, i.e.:
$ sysctl -wq net.vrf.strict_mode=1
Note that the same approach is used for the SRv6 End.DT4 Behavior and for
the End.DT6 Behavior in VRF mode.
The command used to instantiate an SRv6 End.DT46 Behavior is
straightforward, i.e.:
$ ip -6 route add 2001:db8::1 encap seg6local action End.DT46 vrftable 100 dev vrf100.
[1] https://www.rfc-editor.org/rfc/rfc8986.html#name-enddt46-decapsulation-and-s
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Performance and impact of SRv6 End.DT46 Behavior on the SRv6 Networking
=======================================================================
This patch aims to add the SRv6 End.DT46 Behavior with minimal impact on
the performance of SRv6 End.DT4 and End.DT6 Behaviors.
In order to verify this, we tested the performance of the newly introduced
SRv6 End.DT46 Behavior and compared it with the performance of SRv6
End.DT{4,6} Behaviors, considering both the patched kernel and the kernel
before applying the End.DT46 patch (referred to as vanilla kernel).
In details, the following decapsulation scenarios were considered:
1.a) IPv6 traffic in SRv6 End.DT46 Behavior on patched kernel;
1.b) IPv4 traffic in SRv6 End.DT46 Behavior on patched kernel;
2.a) SRv6 End.DT6 Behavior (VRF mode) on patched kernel;
2.b) SRv6 End.DT4 Behavior on patched kernel;
3.a) SRv6 End.DT6 Behavior (VRF mode) on vanilla kernel (without the
End.DT46 patch);
3.b) SRv6 End.DT4 Behavior on vanilla kernel (without the End.DT46 patch).
All tests were performed on a testbed deployed on the CloudLab [2]
facilities. We considered IPv{4,6} traffic handled by a single core (at 2.4
GHz on a Xeon(R) CPU E5-2630 v3) on kernel 5.13-rc1 using packets of size
~ 100 bytes.
Scenario (1.a): average 684.70 kpps; std. dev. 0.7 kpps;
Scenario (1.b): average 711.69 kpps; std. dev. 1.2 kpps;
Scenario (2.a): average 690.70 kpps; std. dev. 1.2 kpps;
Scenario (2.b): average 722.22 kpps; std. dev. 1.7 kpps;
Scenario (3.a): average 690.02 kpps; std. dev. 2.6 kpps;
Scenario (3.b): average 721.91 kpps; std. dev. 1.2 kpps;
Considering the results for the patched kernel (1.a, 1.b, 2.a, 2.b) we
observe that the performance degradation incurred in using End.DT46 rather
than End.DT6 and End.DT4 respectively for IPv6 and IPv4 traffic is minimal,
around 0.9% and 1.5%. Such very minimal performance degradation is the
price to be paid if one prefers to use a single tunnel capable of handling
both types of traffic (IPv4 and IPv6).
Comparing the results for End.DT4 and End.DT6 under the patched and the
vanilla kernel (2.a, 2.b, 3.a, 3.b) we observe that the introduction of the
End.DT46 patch has no impact on the performance of End.DT4 and End.DT6.
[2] https://www.cloudlab.us
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the '.. code-block:: none' to properly highlight the documented DSDT
entries. This also fixes warnings in the documentation build process.
Fixes: e71305acd81c ("Documentation: ACPI: DSD: Document MDIO PHY")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Include the new phy.rst into the index of the ACPI support
documentation.
Fixes: e71305acd81c ("Documentation: ACPI: DSD: Document MDIO PHY")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The continue statement at the end of a for-loop has no effect,
invert the if expression and remove the continue.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink_trap tests for the netdevsim fail due to misspelled
debugfs file name. Change this name, as well as name of callback
function, to match the naming as in the devlink itself - 'trap_drop_counter'.
Test-results:
selftests: drivers/net/netdevsim: devlink_trap.sh
TEST: Initialization [ OK ]
TEST: Trap action [ OK ]
TEST: Trap metadata [ OK ]
TEST: Non-existing trap [ OK ]
TEST: Non-existing trap action [ OK ]
TEST: Trap statistics [ OK ]
TEST: Trap group action [ OK ]
TEST: Non-existing trap group [ OK ]
TEST: Trap group statistics [ OK ]
TEST: Trap policer [ OK ]
TEST: Trap policer binding [ OK ]
TEST: Port delete [ OK ]
TEST: Device delete [ OK ]
Fixes: a7b3527a43fe ("drivers: net: netdevsim: add devlink trap_drop_counter_get implementation")
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
100GbE Intel Wired LAN Driver Updates 2021-06-17
This series contains updates to ice driver only.
Jake corrects a couple of entries in the PTYPE table to properly
reflect the datasheet and removes unneeded NULL checks for some
PTP calls.
Paul reduces the scope of variables and removes the use of a local
variable.
Shaokun Zhang removes a duplicate function declaration.
Lorenzo Bianconi fixes a compilation warning if PTP_1588_CLOCK is
disabled.
Colin Ian King changes a for loop to remove an unneeded 'continue'.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Guangbin Huang says:
====================
net: hdlc_ppp: clean up some code style issues
This patchset clean up some code style issues.
---
Change Log：
V1 -> V2:
1. remove patch "net: hdlc_ppp: fix the comments style issue" and
patch "net: hdlc_ppp: remove redundant spaces" from this patchset.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add space required after that ','.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch removes unnecessary out of memory message,
to fix the following checkpatch.pl warning:
"WARNING: Possible unnecessary 'out of memory' message"
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Should not use assignment in if condition.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the checkpatch error as "foo* bar" or "foo*bar" should be "foo *bar".
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes the checkpatch error about missing a blank line
after declarations.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
