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Using is_zero_ether_addr() instead of directly use
memcmp() to determine if the ethernet address is all
zeros.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The pktgen_{run, reset, stop}_all_threads() has the same code,
so add pktgen_handle_all_threads() for it.
Signed-off-by: Yejune Deng <yejune.deng@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should not directly BUG() when there is hdr error, it is
better to output a print when such error happens. Currently,
the caller of xmit_skb() already did it.
Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use devm_platform_get_and_ioremap_resource() to simplify
code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use devm_platform_get_and_ioremap_resource() to simplify
code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_lookup_leaf()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:773: warning: Function parameter or member 'hprio' not described in 'htb_lookup_leaf'
net/sched/sch_htb.c:773: warning: Function parameter or member 'prio' not described in 'htb_lookup_leaf'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_do_events()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:708: warning: Function parameter or member 'q' not described in 'htb_do_events'
net/sched/sch_htb.c:708: warning: Function parameter or member 'level' not described in 'htb_do_events'
net/sched/sch_htb.c:708: warning: Function parameter or member 'start' not described in 'htb_do_events'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_charge_class()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:663: warning: Function parameter or member 'q' not described in 'htb_charge_class'
net/sched/sch_htb.c:663: warning: Function parameter or member 'cl' not described in 'htb_charge_class'
net/sched/sch_htb.c:663: warning: Function parameter or member 'level' not described in 'htb_charge_class'
net/sched/sch_htb.c:663: warning: Function parameter or member 'skb' not described in 'htb_charge_class'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_deactivate()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:578: warning: Function parameter or member 'q' not described in 'htb_deactivate'
net/sched/sch_htb.c:578: warning: Function parameter or member 'cl' not described in 'htb_deactivate'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_activate()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:562: warning: Function parameter or member 'q' not described in 'htb_activate'
net/sched/sch_htb.c:562: warning: Function parameter or member 'cl' not described in 'htb_activate'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_change_class_mode()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:533: warning: Function parameter or member 'q' not described in 'htb_change_class_mode'
net/sched/sch_htb.c:533: warning: Function parameter or member 'cl' not described in 'htb_change_class_mode'
net/sched/sch_htb.c:533: warning: Function parameter or member 'diff' not described in 'htb_change_class_mode'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_class_mode()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:507: warning: Function parameter or member 'cl' not described in 'htb_class_mode'
net/sched/sch_htb.c:507: warning: Function parameter or member 'diff' not described in 'htb_class_mode'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_deactivate_prios()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:442: warning: Function parameter or member 'q' not described in 'htb_deactivate_prios'
net/sched/sch_htb.c:442: warning: Function parameter or member 'cl' not described in 'htb_deactivate_prios'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_activate_prios()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:407: warning: Function parameter or member 'q' not described in 'htb_activate_prios'
net/sched/sch_htb.c:407: warning: Function parameter or member 'cl' not described in 'htb_activate_prios'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_remove_class_from_row()
to fix gcc W=1 warnings:
net/sched/sch_htb.c:380: warning: Function parameter or member 'q' not described in 'htb_remove_class_from_row'
net/sched/sch_htb.c:380: warning: Function parameter or member 'cl' not described in 'htb_remove_class_from_row'
net/sched/sch_htb.c:380: warning: Function parameter or member 'mask' not described in 'htb_remove_class_from_row'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_add_class_to_row() to fix
gcc W=1 warnings:
net/sched/sch_htb.c:351: warning: Function parameter or member 'q' not described in 'htb_add_class_to_row'
net/sched/sch_htb.c:351: warning: Function parameter or member 'cl' not described in 'htb_add_class_to_row'
net/sched/sch_htb.c:351: warning: Function parameter or member 'mask' not described in 'htb_add_class_to_row'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_next_rb_node() to fix
gcc W=1 warnings:
net/sched/sch_htb.c:339: warning: Function parameter or member 'n' not described in 'htb_next_rb_node'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add description for parameters of htb_add_to_wait_tree() to fix
gcc W=1 warnings:
net/sched/sch_htb.c:308: warning: Function parameter or member 'q' not described in 'htb_add_to_wait_tree'
net/sched/sch_htb.c:308: warning: Function parameter or member 'cl' not described in 'htb_add_to_wait_tree'
net/sched/sch_htb.c:308: warning: Function parameter or member 'delay' not described in 'htb_add_to_wait_tree'
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Li says:
====================
net: hd64570: clean up some code style issues
This patchset clean up some code style issues.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add space required before the open parenthesis '('.
Add space required after that close brace '}'.
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>
Remove redundant parentheses around 'cda >= desc_off'.
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>
Block comments use * on subsequent lines.
Block comments use a trailing */ on a separate line.
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>
Braces {} should be used on all arms of this statement.
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>
Trailing statements should be on next line.
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" and should be "foo *bar",
and "(foo*)" should be "(foo *)".
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>
This patch removes some redundant blank lines.
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>
Vladimir Oltean says:
====================
Convert NXP SJA1105 DSA driver to YAML
This is an attempt to convert the SJA1105 driver to the YAML schema.
The SJA1105 driver has some custom device tree properties which caused
validation problems in the previous attempt:
https://patchwork.kernel.org/project/netdevbpf/patch/20210531234735.1582031-1-olteanv@gmail.com/
So now we are removing them, hoping that this will make the conversion
easier to accept.
In order to do that, we introduce a new PHY interface type, "reverse RMII",
which is like "reverse MII" (aka MII as a PHY) but for the reduced data
width version of the protocol. This is a direct replacement for an rmii
fixed-link. Now, rmii fixed-link interfaces behave as a MAC, and rev-rmii
fixed-link interfaces behave as a PHY.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Since the sja1105 driver no longer has any custom device tree
properties, the conversion is trivial.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that both RevMII as well as RevRMII exist, we can deprecate the
sja1105,role-mac and sja1105,role-phy properties and simply let the user
select that a port operates in MII PHY role by using
phy-mode = "rev-mii";
or in RMII PHY role by using
phy-mode = "rev-rmii";
There are no fixed-link MII or RMII properties in mainline device trees,
and the setup itself is fairly uncommon, so there shouldn't be risks of
breaking compatibility.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sja1105 driver has an intermediate way of determining whether the
RGMII delays should be applied by the PHY or by itself: by looking at
the port role (PHY or MAC). The port can be put in the PHY role either
explicitly (sja1105,role-phy) or implicitly (fixed-link).
We want to deprecate the sja1105,role-phy property, so all that remains
is the fixed-link property. Introduce a "fixed_link" array of booleans
in the driver, and use that to determine whether RGMII delays must be
applied or not.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The "reverse RMII" protocol name is a personal invention, derived from
"reverse MII".
Just like MII, RMII is an asymmetric protocol in that a PHY behaves
differently than a MAC. In the case of RMII, for example:
- the 50 MHz clock signals are either driven by the MAC or by an
external oscillator (but never by the PHY).
- the PHY can transmit extra in-band control symbols via RXD[1:0] which
the MAC is supposed to understand, but a PHY isn't.
The "reverse MII" protocol is not standardized either, except for this
web document:
https://www.eetimes.com/reverse-media-independent-interface-revmii-block-architecture/#
In short, it means that the Ethernet controller speaks the 4-bit data
parallel protocol from the perspective of a PHY (it acts like a PHY).
This might mean that it implements clause 22 compatible registers,
although that is optional - the important bit is that its pins can be
connected to an MII MAC and it will 'just work'.
In this discussion thread:
https://lore.kernel.org/netdev/20210201214515.cx6ivvme2tlquge2@skbuf/
we agreed that it would be an abuse of terms to use the "RevMII" name
for anything than the 4-bit parallel MII protocol. But since all the
same concepts can be applied to the 2-bit Reduced MII protocol as well,
here we are introducing a "Reverse RMII" protocol. This means: "behave
like an RMII PHY".
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add an inbound policy filter which matches the HSR/PRP supervision
MAC range and forwards to the CPU port without discarding duplicates.
This is required to correctly populate time_in[A] and time_in[B] in the
HSR/PRP node_table. Leave the policy disabled by default and
enable/disable it when joining/leaving hsr.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In my last changes in commit 5e0b8928927f I introduced a copy-paste bug,
leading to cancel twice qresume_task work for OFLD queue, and never the
one for CTRL queue. This patch cancels correctly both works.
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When configuring TC-MQPRIO offload, only turn off netdev carrier and
don't bring physical link down in hardware. Otherwise, when the
physical link is brought up again after configuration, it gets
re-trained and stalls ongoing traffic.
Also, when firmware is no longer accessible or crashed, avoid sending
FLOWC and waiting for reply that will never come.
Fix following hung_task_timeout_secs trace seen in these cases.
INFO: task tc:20807 blocked for more than 122 seconds.
Tainted: G S 5.13.0-rc3+ #122
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:tc state:D stack:14768 pid:20807 ppid: 19366 flags:0x00000000
Call Trace:
__schedule+0x27b/0x6a0
schedule+0x37/0xa0
schedule_preempt_disabled+0x5/0x10
__mutex_lock.isra.14+0x2a0/0x4a0
? netlink_lookup+0x120/0x1a0
? rtnl_fill_ifinfo+0x10f0/0x10f0
__netlink_dump_start+0x70/0x250
rtnetlink_rcv_msg+0x28b/0x380
? rtnl_fill_ifinfo+0x10f0/0x10f0
? rtnl_calcit.isra.42+0x120/0x120
netlink_rcv_skb+0x4b/0xf0
netlink_unicast+0x1a0/0x280
netlink_sendmsg+0x216/0x440
sock_sendmsg+0x56/0x60
__sys_sendto+0xe9/0x150
? handle_mm_fault+0x6d/0x1b0
? do_user_addr_fault+0x1c5/0x620
__x64_sys_sendto+0x1f/0x30
do_syscall_64+0x3c/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7f73218321
RSP: 002b:00007ffd19626208 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000055b7c0a8b240 RCX: 00007f7f73218321
RDX: 0000000000000028 RSI: 00007ffd19626210 RDI: 0000000000000003
RBP: 000055b7c08680ff R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000055b7c085f5f6
R13: 000055b7c085f60a R14: 00007ffd19636470 R15: 00007ffd196262a0
Fixes: b1396c2bd675 ("cxgb4: parse and configure TC-MQPRIO offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit ae81feb7338c ("sch_htb: fix null pointer dereference
on a null new_q") fixes a NULL pointer dereference bug, but it
is not correct.
Because htb_graft_helper properly handles the case when new_q
is NULL, and after the previous patch by skipping this call
which creates an inconsistency : dev_queue->qdisc will still
point to the old qdisc, but cl->parent->leaf.q will point to
the new one (which will be noop_qdisc, because new_q was NULL).
The code is based on an assumption that these two pointers are
the same, so it can lead to refcount leaks.
The correct fix is to add a NULL pointer check to protect
qdisc_refcount_inc inside htb_parent_to_leaf_offload.
Fixes: ae81feb7338c ("sch_htb: fix null pointer dereference on a null new_q")
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Suggested-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
According to the standard IEC 62439-2, the number of transitions needs
to be counted for each transition 'between' ring state open and ring
state closed and not from open state to closed state.
Therefore fix this for both ring and interconnect ring.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The supplied buffer for the MAC address might not be aligned. Thus
doing a 32bit (or 16bit) access could be on an unaligned address. For
now, enetc is only used on aarch64 which can do unaligned accesses, thus
there is no error. In any case, be correct and use the get/put_unaligned
helpers.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Li says:
====================
net: hdlc_x25: clean up some code style issues
This patchset clean up some code style issues.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alignment should match open parenthesis.
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>
According to the chackpatch.pl, else should follow close brace '}'.
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>
Add spaces required around that '='.
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>
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>
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>
This patch removes some redundant blank lines.
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>
Tony Nguyen says:
====================
1GbE Intel Wired LAN Driver Updates 2021-06-04
This series contains updates to igc driver only.
Sasha utilizes the newly introduced ethtool_sprintf() function, removes
unused defines, and fixes indentation.
Muhammad adds support for hardware VLAN insertion and stripping.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2021-06-04
This series contains updates to virtchnl header file and ice driver.
Brett fixes VF being unable to request a different number of queues then
allocated and adds clearing of VF_MBX_ATQLEN register for VF reset.
Haiyue handles error of rebuilding VF VSI during reset.
Paul fixes reporting of autoneg to use the PHY capabilities.
Dave allows LLDP packets without priority of TC_PRIO_CONTROL to be
transmitted.
Geert Uytterhoeven adds explicit padding to virtchnl_proto_hdrs
structure in the virtchnl header file.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason A. Donenfeld says:
====================
wireguard fixes for 5.13-rc5
Here are bug fixes to WireGuard for 5.13-rc5:
1-2,6) These are small, trivial tweaks to our test harness.
3) Linus thinks -O3 is still dangerous to enable. The code gen wasn't so
much different with -O2 either.
4) We were accidentally calling synchronize_rcu instead of
synchronize_net while holding the rtnl_lock, resulting in some rather
large stalls that hit production machines.
5) Peer allocation was wasting literally hundreds of megabytes on real
world deployments, due to oddly sized large objects not fitting
nicely into a kmalloc slab.
7-9) We move from an insanely expensive O(n) algorithm to a fast O(1)
algorithm, and cleanup a massive memory leak in the process, in
which allowed ips churn would leave danging nodes hanging around
without cleanup until the interface was removed. The O(1) algorithm
eliminates packet stalls and high latency issues, in addition to
bringing operations that took as much as 10 minutes down to less
than a second.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When removing single nodes, it's possible that that node's parent is an
empty intermediate node, in which case, it too should be removed.
Otherwise the trie fills up and never is fully emptied, leading to
gradual memory leaks over time for tries that are modified often. There
was originally code to do this, but was removed during refactoring in
2016 and never reworked. Now that we have proper parent pointers from
the previous commits, we can implement this properly.
In order to reduce branching and expensive comparisons, we want to keep
the double pointer for parent assignment (which lets us easily chain up
to the root), but we still need to actually get the parent's base
address. So encode the bit number into the last two bits of the pointer,
and pack and unpack it as needed. This is a little bit clumsy but is the
fastest and less memory wasteful of the compromises. Note that we align
the root struct here to a minimum of 4, because it's embedded into a
larger struct, and we're relying on having the bottom two bits for our
flag, which would only be 16-bit aligned on m68k.
The existing macro-based helpers were a bit unwieldy for adding the bit
packing to, so this commit replaces them with safer and clearer ordinary
functions.
We add a test to the randomized/fuzzer part of the selftests, to free
the randomized tries by-peer, refuzz it, and repeat, until it's supposed
to be empty, and then then see if that actually resulted in the whole
thing being emptied. That combined with kmemcheck should hopefully make
sure this commit is doing what it should. Along the way this resulted in
various other cleanups of the tests and fixes for recent graphviz.
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Cc: stable@vger.kernel.org
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
