Replace the smp_wmb()/smp_rmb() barrier pair with
smp_store_release()/smp_load_acquire() on
vg->vlan_devices_arrays[pidx][vidx].
vlan_group_prealloc_vid() publishes the array pointer via release;
__vlan_group_get_device() acquires it before accessing the array,
ensuring the allocated entries are visible.
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
A plain C read and assignment of the net_device pointer
in the vlan_devices_arrays leaf entries lack proper atomicity
and ordering barriers. A concurrent lockless reader on the packet
receive fast-path could observe a torn or partially initialized
net_device pointer, leading to a potential out-of-bounds read or kernel
panic.
The data race occurs between the netlink/ioctl configuration paths
(holding the per-netns rtnl_nets_lock or RTNL lock) and the softirq
receive fast-path (holding rcu_read_lock()):
CPU 0 (Writer, rtnl_nets_lock/RTNL) CPU 1 (Reader, rcu_read_lock())
----------------------------------- -------------------------------
rtnetlink_rcv_msg()
// RTM_NEWLINK handler with RTNL_FLAG_DOIT_PERNET
rtnl_newlink()
ops->newlink() == vlan_newlink()
OR
vlan_ioctl_handler()
[ADD_VLAN_CMD] -> register_vlan_device()
register_vlan_dev()
vlan_group_set_device()
netif_receive_skb_core()
vlan_do_receive()
vlan_find_dev()
__vlan_group_get_device()
// Speculative / torn read
[Loads bad net_device *]
[Plain C store]
array[vlan_id] = dev;
// Dereferences bad pointer
// during device status check
vlan_dev->flags (PANIC!)
Fix this by using rcu_assign_pointer() in vlan_group_set_device()
and rcu_dereference_raw() in __vlan_group_get_device() to enforce
proper ordering and memory atomicity for the leaf entry traversal.
Link: https://sashiko.dev/#/patchset/20260825095422.3166067-1-ruanjinjie%40huawei.com
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Chia-Yu Chang says:
====================
Explicit TSO segment count
This series replaces the existing min_tso_segs() congestion control
callback with a new tso_segs() callback that allows congestion control
algorithms to provide an explicit TSO segment count for each data burst.
To support BPF congestion controls, the series also exposes
tcp_tso_autosize() as a BPF kfunc, allowing BPF implementations to
reuse the kernel TSO autosizing logic while implementing custom
tso_segs() callbacks.
====================
Link: https://patch.msgid.link/20260831165230.2696893-1-chia-yu.chang@nokia-bell-labs.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Expose tcp_tso_autosize() as a BPF kfunc and register it in the TCP
congestion-control kfunc set. This allows BPF congestion controls to
reuse the kernel TSO autosizing logic while applying their own
minimum TSO segment policy.
To make the kfunc robust against BPF-provided inputs, min_tso_segs is
sanitized to at least 1 and mss_now == 0 returns the sanitized minimum
value instead of performing autosizing.
Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch replaces the existing min_tso_segs() callback with a new
tso_segs() callback, allowing congestion control algorithms to provide
an explicit TSO segment count for each data burst and bypass
tcp_tso_autosize(). The resulting tso_segs value is clamped to
[1, sk->sk_gso_max_segs], preventing congestion-control implementations
from returning an invalid zero-segment value.
This change has the following impacts on BPF struct_ops users:
- The callback is renamed from min_tso_segs() to tso_segs()
- The signature gains an extra u32 mss_now argument
- The return value semantics is changed from "floor value passed into
tcp_tso_autosize()" to "final tso_segs value", bypassing autosizing
As a result, existing BPF programs must be updated, because returning a
small constant will now directly limit the final tso_segs value instead
of specifying the minimum value passed to tcp_tso_autosize().
Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com>
Signed-off-by: Ilpo Järvinen <ij@kernel.org>
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
netvsc_run_xdp() in drivers/net/hyperv/netvsc_bpf.c has handled
XDP_REDIRECT since commit 1cb9d3b618 ("hv_netvsc: Add support for
XDP_REDIRECT"), and netvsc_drv.c advertises NETDEV_XDP_ACT_REDIRECT
in xdp_features. Remove the stale note.
Link: https://patch.msgid.link/20260831200357.45390-1-chrismelnu@gmail.com
Signed-off-by: Christian Melendez <chrismelnu@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-09-01 (i40e)
Kohei Enju adds support for XDP metadata of Rx hash and VLAN tag.
Chris Packham reduces messaging when Rx filters are exhausted, and
promiscuous mode is enabled, to occur once when the mode is enabled
rather than repeated messaging for each filter.
* '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
i40e: Avoid repeating RX filter warning
i40e: add support for bpf_xdp_metadata_rx_vlan_tag()
i40e: add support for bpf_xdp_metadata_rx_hash()
i40e: prepare for XDP metadata ops support
====================
Link: https://patch.msgid.link/20260901211752.1922993-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
bind_wildcard picks an ephemeral port by binding fd[0] with port 0, reads
it back with getsockname(), and then reuses that exact port number for the
other addresses/families in fd[1..7]. This all happens in the default
network namespace, so unrelated processes on the same host are drawing from
the very same ephemeral port range (net.ipv4.ip_local_port_range) at the
same time.
Such a process can independently get assigned that exact port number on a
different, non-conflicting address in the short window between fd[0]'s
bind() and fd[1]'s, making fd[1]'s bind() fail with EADDRINUSE for reasons
that have nothing to do with the wildcard-bind behavior under test, e.g.:
# bind_wildcard.c:775:plain:Expected ret (-1) == 0 (0)
# plain: Test terminated by assertion
not ok N bind_wildcard.v6_local_v4_local.plain
Fix it the same way so_incoming_cpu.c, tcp_port_share.c and
reuseport_dualstack.c already do: unshare into a fresh network namespace
and bring lo up, so there is nobody else to race with for the port.
Signed-off-by: Ricardo B. Marlière (SUSE) <ricardo@marliere.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Show the number of packets dropped by DMAC filters in the CGX/RPM
debugfs mac_filter entry.
CGX uses RX_STAT4 for this counter, while RPM/RPM2 use RX_STAT2.
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Nitin Shetty J <nshettyj@marvell.com>
Link: https://patch.msgid.link/20260901042503.1182121-1-nshettyj@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If the currently dumped device disappears while we were mid-dump
we will get the next device without resetting the sub-object ID.
This is quite unlikely, it was reported by an AI tool not a real
user. Let's fix it for better dump consistency.
We only intend to cover the case where device A disappears
and we skip over sub-objects of device B which was stable (B existed
before and after the dump). We don't intend to provide stable
results for any device that gets created or deleted during
the dump.
Reviewed-by: Bobby Eshleman <bobbyeshleman@meta.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260903221154.3359889-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The download loop streams the blob into the MCU as 32-bit words and
reads the last word past the end of a blob whose size is not a multiple
of four. The shipped blobs happen to be aligned, so the overread never
showed; a truncated or foreign file would carry up to three bytes of
whatever follows it into the MCU. Reject it before the first write
instead.
Cc: stable+noautosel@kernel.org # needs real net-admin (non-ns)
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
Link: https://patch.msgid.link/20260903123650.23855-1-f@lex.la
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Virtual network devices (ipvlan, macvlan, bonding) can enter legitimate
transmit recursion when combined with packet forwarding configurations
such as IPVS NAT. The existing XMIT_RECURSION_LIMIT (8) in
__dev_queue_xmit() detects and breaks these loops, but the allowed
depth is too high for KASAN-instrumented kernels: each recursion level
consumes significantly more stack due to KASAN inline instrumentation,
and the cumulative usage overflows the kernel stack before the limit
fires.
On x86_64, CONFIG_KASAN_GENERIC doubles THREAD_SIZE from 16KB to 32KB
(KASAN_STACK_ORDER=1), but KASAN per-access checks inflate individual
function frames by roughly 2-3x. For an ipvlan L3 + IPVS NAT routing
loop, objdump measurements on a non-KASAN kernel show ~1.4KB of stack
consumed per recursion level (across 17 functions from __dev_queue_xmit
through the full IP output path and back). At KASAN ~2.3x inflation
factor that becomes ~3.3KB per level. Eight levels -- the current
limit -- consume ~26KB plus the initial call chain (~8KB), which
exceeds the 32KB KASAN stack. The overflow hits the VMAP_STACK guard
page and causes a non-recoverable kernel panic (BUG: stack guard page
was hit).
On non-KASAN kernels the same loop is safely caught by the existing
limit: the "Dead loop on virtual device" message fires and the packet
is dropped without any stack overflow.
Reduce XMIT_RECURSION_LIMIT to 4 when CONFIG_KASAN is enabled.
The deepest legitimate transmit recursion observed in the kernel
selftests is 5 levels of __dev_queue_xmit nesting, in VXLAN symmetric
routing topologies with VRF (vxlan_symmetric, vxlan_asymmetric):
__dev_queue_xmit(vrf) depth 1
__dev_queue_xmit(vlan-svi) depth 2
__dev_queue_xmit(bridge) depth 3
__dev_queue_xmit(vxlan) depth 4
__dev_queue_xmit(veth) depth 5
Since the recursion check fires when the counter exceeds the limit
(strictly greater than), a limit of 4 permits 5 levels of nesting
while blocking the 6th. At ~3.3KB per level, five levels consume
~16.5KB; combined with the ~8KB initial call chain, total usage is
~24.5KB -- well within the 32KB KASAN stack with ~7.5KB of margin.
A limit of 3 (v2/v3 of this patch) allows only 4 levels, which broke
the VXLAN symmetric selftests: the 5th __dev_queue_xmit call was
incorrectly dropped, as reported by Jakub Kicinski and the kernel test
robot.
The recursion path triggering this is:
__dev_queue_xmit -> dev_hard_start_xmit -> ipvlan_start_xmit
-> ipvlan_queue_xmit -> ipvlan_process_outbound -> ip_local_out
-> nf_hook (IPVS) -> ip_vs_in_hook -> ip_vs_nat_xmit -> ip_output
-> ip_finish_output2 -> neigh_resolve_output -> __dev_queue_xmit
Tested:
- KASAN kernel (6.8.12 x86_64): panic before fix, "Dead loop"
drop after fix (at recursion level 4 instead of 8).
- Non-KASAN kernel (6.8.12 x86_64): "Dead loop" drop both before
and after fix (no behavior change for production kernels).
- Measured max __dev_queue_xmit nesting depth via bpftrace in a
VXLAN symmetric cross-VLAN topology (VRF + VLAN + bridge + VXLAN +
veth underlay): 5 levels, confirming limit=4 is sufficient.
Cc: stable+noautosel@kernel.org # KASAN is non-production
Signed-off-by: Tristan Madani <tristan@talencesecurity.com>
Link: https://patch.msgid.link/20260902123040.2172805-1-tristmd@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mana_bpf() has a trailing 'return ret;' after a switch statement whose
every case (XDP_SETUP_PROG and default) already returns unconditionally.
The statement is therefore unreachable and 'ret' is never used.
Remove both. No functional change intended.
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Reviewed-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
Link: https://patch.msgid.link/3d8b67307df6fefdc18743274cef3de4fca0e7de.1788339612.git.falakreyaz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- dat: fix printing of unknown 4addr subtype
- drop direction in _batadv_is_ap_isolated kernel-doc
- bat_v: fix bonding candidate selection
- clarify cut-off in batadv_v_neigh_is_sob kernel-doc
- use more descriptive var names for is_similar_or_better
- ensure u16 aligned mac addresses in structs and arrays (2 patches)
- translation table (tt) fixes/cleanups, 8 patches:
- remove only the entry which was looked up from the hash
- extract code handling a roam on add
- simplify NEW flag transition code
- drop unnecessary cleanup goto in helpers
- use protected flag modifications
- transition NEW local entries only under lock
- don't uncount never committed clients on pending purge
- decrement count for committed client on local_remove
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Merge tag 'batadv-next-pullrequest-20260831' of https://git.open-mesh.org/batadv
Simon Wunderlich says:
====================
This cleanup patchset includes the following patches, all by Sven Eckelmann:
- dat: fix printing of unknown 4addr subtype
- drop direction in _batadv_is_ap_isolated kernel-doc
- bat_v: fix bonding candidate selection
- clarify cut-off in batadv_v_neigh_is_sob kernel-doc
- use more descriptive var names for is_similar_or_better
- ensure u16 aligned mac addresses in structs and arrays (2 patches)
- translation table (tt) fixes/cleanups, 8 patches:
- remove only the entry which was looked up from the hash
- extract code handling a roam on add
- simplify NEW flag transition code
- drop unnecessary cleanup goto in helpers
- use protected flag modifications
- transition NEW local entries only under lock
- don't uncount never committed clients on pending purge
- decrement count for committed client on local_remove
* tag 'batadv-next-pullrequest-20260831' of https://git.open-mesh.org/batadv:
batman-adv: tt: decrement count for committed client on local_remove
batman-adv: tt: don't uncount never committed clients on pending purge
batman-adv: tt: transition NEW local entries only under lock
batman-adv: tt: use protected flag modifications
batman-adv: tt: drop unnecessary cleanup goto in helpers
batman-adv: tt: simplify NEW flag transition code
batman-adv: tt: extract code handling a roam on add
batman-adv: tt: remove only the entry which was looked up from the hash
batman-adv: ensure u16 aligned mac address in structs
batman-adv: ensure u16 aligned mac address arrays on stack
batman-adv: use more descriptive var names for is_similar_or_better
batman-adv: clarify cut-off in batadv_v_neigh_is_sob kernel-doc
batman-adv: bat_v: fix bonding candidate selection
batman-adv: drop direction in _batadv_is_ap_isolated kernel-doc
batman-adv: dat: fix printing of unknown 4addr subtype
====================
Link: https://patch.msgid.link/20260831135117.574836-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Kuniyuki Iwashima says:
====================
neighbour: Namespacify arp_tbl and nd_tbl.
The neighbour subsystem is almost ready to drop RTNL.
However, the control paths are serialised by the global
per-table lock.
This series converts arp_tbl and nd_tbl to per-netns table.
With the series, /proc/sys/net/ipv{4,6}/neigh/default/ can
be configured per netns, which was only configurable in
init_net.
To avoid potential regression, all the settings are inherited
from init_net by default, and this behaviour is controlled by
a new sysctl knob, net.core.neigh_inherit_init_net:
# sysctl net.core.neigh_inherit_init_net
net.core.neigh_inherit_init_net = 1
# sysctl net.ipv4.neigh.default.gc_thresh1
net.ipv4.neigh.default.gc_thresh1 = 128
# sysctl net.ipv4.neigh.default.gc_thresh1=129
net.ipv4.neigh.default.gc_thresh1 = 129
# unshare -n sysctl net.ipv4.neigh.default.gc_thresh1
net.ipv4.neigh.default.gc_thresh1 = 129
If it is turned off, all settings are reset in the new netns:
# sysctl net.core.neigh_inherit_init_net=0
net.core.neigh_inherit_init_net = 0
# unshare -n sysctl net.ipv4.neigh.default.gc_thresh1
net.ipv4.neigh.default.gc_thresh1 = 128
Series overview:
Patch 1 deflakes test_neigh.sh.
Patch 2 ~ 3 are misc cleanup.
Patch 4 ~ 7 store arp_tbl/nd_tbl to net->neigh_tables[] and
remove the global neigh_tables[].
Patch 8 ~ 9 replace the direct access to arp_tbl/nd_tbl to
net->neigh_tables[] using new helpers.
Patch 10 ~ 12 finally replace the global table with per-netns
table.
Patch 13 ~ 14 clean up unnecessary net_eq().
Patch 15 updates test_neigh.sh.
Note that some buggy drivers access nd_tbl without checking
disable_ipv6_mod, so nd_tbl's extern definition is still left.
====================
Link: https://patch.msgid.link/20260902203722.926528-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
test_neigh.sh configures the following attributes in the root
netns, but now these can be set per netns.
* NDTA_THRESH1 / NDTA_THRESH2 / NDTA_THRESH3
* NDTPA_BASE_REACHABLE_TIME
Let's specify netns for "ip ntable".
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-16-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
neigh_table is now per-netns, and net_eq() is no longer needed.
Let's remove them.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-15-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
neigh_table is now per-netns, so struct pneigh_entry does not need
to store a net pointer.
Let's remove it and net comparison for pneigh_entry.
We no longer need to pass net to pneigh_create(), pneigh_delete(),
and pneigh_lookup().
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-14-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Now, neigh_table is ready to be namespacified.
Let's allocate per-netns neigh_table in neigh_table_register()
and call neigh_table_init() and neigh_sysctl_register() for it.
proc_create_seq_data() is changed to proc_create_net_data().
Since each netns has its own sysctl knobs, RTM_SETNEIGHTBL can
configure the default table param (ifindex==0) and GC parameters
per netns.
To avoid potential regression, all the default parameters under
/proc/sys/net/ipv{4,6}/neigh/default/, are inherited from init_net
by default.
This behaviour is controlled by a new sysctl knob,
net.core.neigh_inherit_init_net:
# sysctl net.core.neigh_inherit_init_net
net.core.neigh_inherit_init_net = 1
# sysctl net.ipv4.neigh.default.gc_thresh1
net.ipv4.neigh.default.gc_thresh1 = 128
# sysctl net.ipv4.neigh.default.gc_thresh1=129
net.ipv4.neigh.default.gc_thresh1 = 129
# unshare -n sysctl net.ipv4.neigh.default.gc_thresh1
net.ipv4.neigh.default.gc_thresh1 = 129
If it is turned off, all settings are reset in the new netns:
# sysctl net.core.neigh_inherit_init_net=0
net.core.neigh_inherit_init_net = 0
# unshare -n sysctl net.ipv4.neigh.default.gc_thresh1
net.ipv4.neigh.default.gc_thresh1 = 128
The next patch will remove other unnecessary net_eq().
Note that CONFIG_SYSCTL cannot be enabled without CONFIG_PROC_FS.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-13-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We will allocate neigh_table for each netns and free it
when netns is destroyed.
neigh_ifdown() cleans up all neighbour entries during netns
dismantle, but there is no synchronisation between timers because
neigh_del_timer() uses timer_delete() to stop a timer.
If neigh_table were freed while timer were running, neigh_destroy()
would touch the freed table.
If we called timer_delete_sync() in neigh_flush_one() under
tbl->lock, lockdep would complain although it is false-positive.
Let's convert neigh_table.entries to refcount_t and destruct
neigh_table only when the count reaches 0.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-12-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, neigh_table_init() and neigh_table_clear() are called
once at the boot time, but we will call them for each netns.
Let's clean up them.
For neigh_table_init(),
* Allocate all memory first and unwind on failure
* Remove !tbl->entry_size check since it is always true
for arp_tbl and nd_tbl
* Initialise everything before starting delayed works
For neigh_table_clear(),
* Reorder function to match neigh_table_init()
* Use timer_shutdown_sync() instead of timer_delete_sync()
* Remove pneigh_queue_purge() since it is called
via neigh_ifdown()
* Replace pr_crit() with DEBUG_NET_WARN_ON_ONCE()
* Call neigh_hash_free_rcu() directly without call_rcu()
In a later patch, neigh_table_clear() will be split so that
tbl->{stats,phash_buckets,nht} will be freed only when all
neighbour entries are freed.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-11-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We will allocate per-netns neigh_table in net->neigh_tables[].
Let's replace &nd_tbl with nd_table(net).
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-10-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We will allocate per-netns neigh_table in net->neigh_tables[].
Let's replace &arp_tbl with arp_table(net) and remove extern
definition for arp_tbl.
Three notes:
1. mlx5e_rep_netevent_event() and nfp_tun_neigh_event_handler()
have code assuming neigh_table other than &arp_tbl and
&nb_tbl, and the part is removed as it will be false once
per-netns table is allocated.
2. prestera and rocker uses init_net because they set
dev->netns_immutable to true.
3. mlx5e_tc_update_neigh_used_value() dereferences nhe->neigh_dev
in trace_mlx5e_tc_update_neigh_used_value().
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-9-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Now, &arp_tbl and &nd_tbl are stored in net->neigh_tables[].
Let's use net->neigh_tables[] in neighbour.c and remove the
global neigh_tables[].
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-8-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We will remove RTNL for neigh_add() and neigh_delete(), but they
are still serialised by per-protocol neigh_table.lock.
We can avoid contention by converting neigh_tables[] to per-netns,
but arp_tbl and nd_tbl are directly used in many places.
As a prep, let's store &arp_tbl and &nd_tbl in net->neigh_tables[].
We will replace such users with arp_table(net) and nd_table(net)
and then allocate per-netns neigh_table.
Note that nd_table() still returns &nd_tbl in case disable_ipv6_mod
is 1 because some buggy drivers use nd_tbl without checking it.
proc_create_net() is guarded with CONFIG_PROC_FS because it
returns NULL when =n and setup_net() fails and panic()s. Also
a later patch moves neigh_sysctl_register() under the guard.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-7-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 1bf20cc62a ("neighbour: remove obsolete EXPORT_SYMBOL()")
unexported some functions in neighbour.c because IPv6 is no longer
built as module.
Since it unexported neigh_table_init(), no module can register
neigh_table dynamically.
Let's unexport a few more functions.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-5-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
__neigh_update() could call neigh_update_gc_list() and
neigh_update_managed_list().
Both of them acquire neigh->tbl->lock and neigh->lock, check
neigh->dead, perform link operations, and release the locks.
Let's remove the lock dance.
Note that neigh->dead is always marked under neigh->tbl->lock.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-4-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since commit 6deb535950 ("net: remove unused ATM protocols
and legacy ATM device drivers"), there is no in-kernel user of
__neigh_for_each_release().
Let's remove it.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-3-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
test_neigh.sh has a test case to check if GC is running periodically.
It applies a new value to BASE_REACHABLE_TIME, waits for half of
the old value (+2s) to ensure the config is reflected, and waits for
BASE_REACHABLE_TIME to see if the next GC is triggered.
orig_base_reachable=$(ip -j ntable show name "$tbl_name" | jq '.[] | \
select(has("thresh1")) | .["base_reachable"]')
run_cmd "ip ntable change name $tbl_name thresh1 10 base_reachable 10000"
run_cmd "sleep $(((orig_base_reachable / 1000) / 2 + 2))"
This is because neigh_periodic_work() schedules the next GC with
(BASE_REACHABLE_TIME / 2) seconds:
queue_delayed_work(system_power_efficient_wq, &tbl->gc_work,
NEIGH_VAR(&tbl->parms, BASE_REACHABLE_TIME) >> 1);
However, the very first run is scheduled with a longer period in
neigh_table_init(), which will be up to 45s:
neigh_set_reach_time(&tbl->parms);
queue_delayed_work(system_power_efficient_wq, &tbl->gc_work,
tbl->parms.reachable_time);
The initial value is randomly chosen, so if it is larger than 27s
(larger than two "sleep"s), the test fails.
The test fails more frequently when neigh_table is namespacified by
the later patch.
In addition, the long "sleep" makes the test more flaky on kernel with
CONFIG_NO_HZ_IDLE=y, which is enabled by defconfig.
The tbl->gc_work is initialised with INIT_DEFERRABLE_WORK() and queued
to system_power_efficient_wq.
Even when the next GC is supposed to be triggered 5s later, "sleep"
makes the CPU idle, delaying GC execution until often 20s later,
which is too late.
Let's take the initial tbl->parms.reachable_time into account and
poll periodic_gc_runs every 0.1s up to the proper timeout, not to
make CPU idle.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260902203722.926528-2-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Javen Xu says:
====================
r8169: add support for phylink
This series patch adds support for phylink. RTL8116af is a fiber mode
card, link status and speed can not be read from standard phy reg. So
we read link status and speed from serdes reg by pcs. So as RTL8127atf.
====================
Link: https://patch.msgid.link/20260831053745.1197-1-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
RTL8116AF is a multi-function device. Functions 2 to 7 are hidden from
the PCI core and return an all-ones response when their vendor ID is read,
so they are not enumerated as normal PCI functions.
However, these hidden functions can still affect platform power
management. If they are left in D0 or keep ASPM disabled, the platform may
fail to enter the low-power s0ix state and the CPU package may fail to
enter Package C10.
Put functions 2 to 7 into D3hot and enable ASPM on their PCIe link control
register. Since these functions are hidden, access their configuration
space through pci_bus_read_config_dword() / pci_bus_write_config_dword()
using the same slot and the target function numbers.
Ignore functions that return a PCI error response when reading their
configuration space.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260831053745.1197-8-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch adds ltr support for RTL8117 series, enables RTL8117 series
enter l1.2 state. This makes sense for the system to enter c10 state.
This patch drops the COMBO_LTR_EXTEND_EN write for VER_52. This is
intentional, as this bit is not required for RTL8116af.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260831053745.1197-7-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
RTL8127atf is also a fiber mode card, but its sds reg base addr is
0x0080, which is different from RTL8116af. Add 10g and 1g support for
RTL8127atf in this patch.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260831053745.1197-6-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
RTL8116af is sfp mode. Phylink uses pcs to get the link status from its
serdes reg, instead of standard phy reg. Speed and duplex are hardcoded
to 1000Mbps Full-Duplex. Also, RTL8116af doesn't have internal phy, so
we add some checks to ensure that tp->phydev is not empty when we need it.
In rtl_hw_start_8117(), the MAC calibration for register 0xd412 relies
on reading the internal PHY register 0x0c42. Since RTL8116af does not
have an internal PHY, this calibration step is intentionally bypassed.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260831053745.1197-5-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Transfer old framework to phylink. Phylink can support fiber mode card
which can not get link status or link speed from standard phy registers.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260831053745.1197-4-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For Realtek nics, when we enable jumbo, pause are not supported. So we
must check the pause capabilities from ourself and lp.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
Link: https://patch.msgid.link/20260831053745.1197-3-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch adds speed in private struct in order to decouple
from phydev in the following patch supporting for phylink.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
Link: https://patch.msgid.link/20260831053745.1197-2-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
During namespace initialization the masks rebalancing work is
scheduled and automatically re-scheduled every 4 seconds afterwards.
This is happening in every namespace. On a large kubernetes node with
500 pods, i.e., 500+ namespaces, this creates a decent amount of
unnecessary churn scheduling 500 jobs every 4 seconds that take the
mutex, check that there are no datapaths in their namespace, release
the mutex, re-schedule themselves and exit. These 500 unnecessary
mutex locks may hold off operations in a single namespace that
actually has a datapath configured and has real user requests to
handle under this lock. They can also add delay to removal of other
namespaces as ovs_exit_net() needs to take that lock as well and
synchronously waits for the work to be cancelled.
Let's only fire the job when the first datapath is actually created
and not re-arm it if there are no more datapaths configured in the
namespace.
Another approach would be to make ovs_mutex per-namespace, but it's
a much larger change that should be handled separately, and the
unnecessary work scheduling feels like a waste regardless.
It's safe to check and re-arm outside of the mutex as DP_CMD_NEW
handler will re-arm if the new datapath appears. The scheduling
attempt also doesn't change the work or delay if it is already queued,
so it's also safe to call multiple times.
Skipping the re-arming is more elegant than canceling on removal of
the last datapath as it allows us to not think about potential race
conditions at a negligible cost of potentially one extra re-scheduling.
msecs_to_jiffies() moved to the macro to save on line length.
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://patch.msgid.link/20260902203200.1416026-1-i.maximets@ovn.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
dp83848_config_init() reads BMCR to detect whether auto-negotiation is
enabled, but does not check the phy_read() return value. On an MDIO read
failure phy_read() returns a negative errno, which is then used directly
in a bitwise test; the auto-negotiation state is left undefined while
config_init() still reports success.
Check the return value and propagate the error.
Cc: stable+noautosel@kernel.org # untested fix to unlikely driver error path
Signed-off-by: Donggeun Yoo <donggeunyoo.kernel@gmail.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Xuanqiang Luo <luoxuanqiang@kylinos.cn>
Link: https://patch.msgid.link/20260902065828.1031113-1-donggeunyoo.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Raise the RX_DSCP_NUM() fallback from 16 to 32, the vendor SDK default,
and give ring 4 the 128 descriptors already used for rings 2/11/15.
Ring 4 is the shared "force to CPU" ring that airoha_fe_vip_setup()
routes BOOTP, PPPoE Discovery, PPP LCP/IPCP/CHAP/PAP/IPv6CP, ISAKMP,
DHCPv6, SIP and LLDP onto, so it sees the same bursty non-hashed traffic
as the rings already on 128 while sitting on the smallest allowance.
Both CDMs forward to it: REG_CDM_FWD_CFG(1) and (2) each set
CDM_VIP_QSEL_MASK to 4.
The NO_CPU_DSCP fix does not cover this. With it in place, at 16
descriptors the ring still dies during PPPoE negotiation on a Nokia
XG-040G-MF: over 6455 devmem samples in 60 s, REG_RX_DMA_IDX advanced
0x2c -> 0x52 while REG_RX_CPU_IDX stayed at 15, descriptor 15 had DONE
set on a 60-byte frame, descriptors 0-14 were empty, and q->tail was 0.
Hw had completed a descriptor the strictly sequential consumer in
airoha_qdma_rx_process() cannot reach, and negotiation never completes.
At 16 DHCP still works while PPPoE does not: a dial-up bursts Discovery,
LCP, IPCP and CHAP where DHCP sends one packet every ~150 s. With this
series, 508 forced reconnects over 20 h saw no recurrence.
RX_DONE_INT_MASK covers all 32 rings on both QDMA instances, so this
costs 544 more descriptors per instance, 1088 in total: 2.1 MiB of RX
buffers at PAGE_SIZE/2 each, plus 34 KiB of coherent descriptor memory.
Ring 4 and the VIP classification feeding it are shared driver-wide, with
no DT or hardware property distinguishing one variant's ring 4 from
another's, so this is not scoped to a particular SoC.
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Vitaliy Sochnev <sochnev.v.74@gmail.com>
Link: https://patch.msgid.link/978fe95e4c5ddb05ceb7d8c4d00ea2d2203b79d0.1788286284.git.sochnev.v.74@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
request_firmware() may enter the sysfs fallback and call
try_to_freeze(). Devlink invokes it while holding the instance lock,
causing syzbot to report:
WARNING: syz-executor/... still has locks held!
Firmware flash requests already name a file provided by userspace.
Use request_firmware_direct() in both flash update paths so a missing
file fails immediately instead of entering the sysfs fallback. This
keeps the normal devlink locking intact.
On systems with CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y, devlink flash
can no longer obtain a missing image through that fallback. Callers still
receive the existing error result, and netlink users retain the extack
message.
Cc: stable+noautosel@kernel.org # FW_LOADER_USER_HELPER_FALLBACK=y has no known use
Reported-by: syzbot+372a7d84708b07f64d9b@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=372a7d84708b07f64d9b
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Miguel Garcia <miguelgarciaroman8@gmail.com>
Link: https://patch.msgid.link/20260902095739.3587287-1-miguelgarciaroman8@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
nsim_bus_dev_release() drops nsim_bus_devs when a device is freed, but
the matching increment was done in new_device_store() after
nsim_bus_dev_new() returned. When device_register() failed inside
nsim_bus_dev_new(), put_device() invoked the release callback and
decremented without an increment, driving the refcount to zero; a later
creation then incremented from zero (refcount_t: addition on 0).
Increment nsim_bus_devs in nsim_bus_dev_new() before device_register(),
and drop the bus reference in nsim_bus_exit() only after every device has
been removed, so the completion cannot be signaled early.
Cc: stable+noautosel@kernel.org # netdevsim is a test harness, it's never loaded on production systems
Reported-by: syzbot+989ff6506f5c6d1ff56b@syzkaller.appspot.com
Closes: https://syzkaller.appspot.com/bug?extid=989ff6506f5c6d1ff56b
Signed-off-by: Adriano Cordova <adrianox@gmail.com>
Link: https://patch.msgid.link/20260902025704.34606-1-adrianox@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Previous releases - regressions:
- page_pool: keep frag_offset aligned for odd-sized requests
- sched: fix u32 duplicate handle when node ID pool is exhausted
- udp: create exceptions before socket matching
- igmp: convert struct ip_sf_list to RCU
- ip6_gre: check tunnel info before xmit in ip6gre_tunnel_xmit
- rds: acquire the fastpath locks in rds_conn_shutdown()
- tipc:
- protect node reset trace dump with node lock
- fix NULL deref in tipc_named_node_up() on empty publication list
- bluetooth:
L2CAP: fix out-of-bounds write in l2cap_ecred_connect
hci_core: fix race condition during device registration
- eth: mlx5e: prevent stale XSK buffer release on refill retries
- eth: bridge: don't truncate the port group walk on teardown
Previous releases - always broken:
- gro: fix nesting of TCP GSO SKBs in skb_gro_receive_list()
- sched: fix skb sizing and action leak on reoffload delete
- tcp: fix use-after-free in do_tcp_getsockopt()
- af_packet: don't cast tpacket_hdr.tp_len to int in tpacket_parse_header().
- sctp: fix soft lockup from unpadded ASCONF-ACK parameter iteration
- iptunnel: fix stale transport header during tunnel decapsulation
- eth: vxlan: fix use-after-free in vxlan_mdb_remote_src_del()
- eth: bonding: fix uninitialized transport header access in alb_determine_nd()
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth.
Previous releases - regressions:
- page_pool: keep frag_offset aligned for odd-sized requests
- sched: fix u32 duplicate handle when node ID pool is exhausted
- udp: create exceptions before socket matching
- igmp: convert struct ip_sf_list to RCU
- ip6_gre: check tunnel info before xmit in ip6gre_tunnel_xmit
- rds: acquire the fastpath locks in rds_conn_shutdown()
- tipc:
- protect node reset trace dump with node lock
- fix NULL deref in tipc_named_node_up() on empty publication
list
- bluetooth:
- L2CAP: fix out-of-bounds write in l2cap_ecred_connect
- hci_core: fix race condition during device registration
- eth:
- mlx5e: prevent stale XSK buffer release on refill retries
- bridge: don't truncate the port group walk on teardown
Previous releases - always broken:
- gro: fix nesting of TCP GSO SKBs in skb_gro_receive_list()
- sched: fix skb sizing and action leak on reoffload delete
- tcp: fix use-after-free in do_tcp_getsockopt()
- af_packet: don't cast tpacket_hdr.tp_len to int in
tpacket_parse_header()
- sctp: fix soft lockup from unpadded ASCONF-ACK parameter iteration
- iptunnel: fix stale transport header during tunnel decapsulation
- eth:
- vxlan: fix use-after-free in vxlan_mdb_remote_src_del()
- bonding: fix uninitialized transport header access in
alb_determine_nd()"
* tag 'net-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits)
net: gro: Fix nesting of TCP GSO SKBs in skb_gro_receive_list()
net: stmmac: reconfigure RX packet parser table in stmmac_hw_setup() after reset
net: airoha: enable RX_DONE interrupt for RX queue 31
net/rds: don't let rds_conn_shutdown() consume a concurrent drop
net/rds: acquire the fastpath locks in rds_conn_shutdown()
net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
net/rds: tcp: don't force RDS_CONN_RESETTING over a concurrent shutdown
net/rds: clear cp_flags bits individually in rds_conn_path_reset()
net/rds: use clear_bit_unlock() in release_refill()
net/rds: use wq_has_sleeper() in release_in_xmit()
net: usb: qmi_wwan: add Compal EXM-G1x support
net: macb: exclude software FCS from TX byte statistics
net: Remove conflicting altnames for dying netns in __dev_change_net_namespace().
net: bridge: mcast: don't truncate the port group walk on teardown
bonding: do not clear curr_active_slave prematurely when releasing all slaves
net: qrtr: Send HELLO message on endpoint register
octeontx2-af: Fix limiting SRIOV VF count logic
bonding: alb: fix uninitialized transport header access in alb_determine_nd()
s390/ctcm: Prevent XID null dereference
net: psp: do not inherit the Rx association on clone
...
- dm-cache: fix rwsem being locked and unlocked from different processes
- dm-integrity: set the 'stable writes' flag
- dm-integrity: fix a buffer overflow introduced in this merge window
- dm-integrity: fix an infinite loop if tag size is greater than 64
- dm-cache: fix demotion statistics
- dm-integrity: fix NULL pointer dereference in the data-recovery mode
- dm-ebs: remove a bogus restriction on the starting sector offset
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Merge tag 'for-7.3/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mikulas Patocka:
- fix a dm-crypt race condition that could make errors not being reported
- dm-cache:
- fix rwsem being locked and unlocked from different processes
- fix demotion statistics
- dm-integrity:
- set the 'stable writes' flag
- fix a buffer overflow introduced in this merge window
- fix an infinite loop if tag size is greater than 64
- fix NULL pointer dereference in dm-integrity data-recovery mode
- remove a bogus restriction on the dm-ebs starting sector offset
* tag 'for-7.3/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm-ebs: fix incorrect device offset check in ebs_ctr()
dm-integrity: fix NULL pointer dereference when the 'R' flag is used
dm cache: fix demotion stats in passthrough mode
dm-integrity: fix infinite loop on discard with large tag size
dm-integrity: fix buffer overflow with keyed discard
dm-integrity: require stable writes for internal hash modes
dm cache: fix issue with background work locking
dm-crypt: fix a tiny race condition in crypt_dec_pending
invalidate_lock, avoiding mmap failures during concurrent size changes
and exposure of uninitialized data during allocation.
- Correct fallocate signal and zeroing error handling.
- Fix FITRIM range alignment to prevent discard requests from extending
into allocated clusters.
- Fix free-cluster accounting when cluster-freeing rollback or bitmap
clearing fails.
- Keep volumes marked dirty when ntfs errors have been recorded.
- Compute bi_sector in 512-byte units, preventing silent corruption on
4Kn devices.
- Validate sectors_per_cluster values and prevent undefined shifts when
parsing MFT and index record sizes.
- Bound $AttrDef traversal to the loaded table size.
- Fix MFT record resizing, memmove overlap, and kmap_local cleanup issues.
- Improve error propagation across attribute, EA, and reparse operations,
including returning -ERANGE for undersized xattr buffers.
- Avoid modifying the HasEA flag when setxattr fails and return
DT_UNKNOWN when directory inode lookup fails.
- Reduce contention in WOF decompression by performing block reads outside
the decompression lock.
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Merge tag 'ntfs-for-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs
Pull ntfs fixes from Namjae Jeon:
- Serialize truncate, fallocate, and mmap fault paths with
invalidate_lock, avoiding mmap failures during concurrent size
changes and exposure of uninitialized data during allocation
- Correct fallocate signal and zeroing error handling
- Fix FITRIM range alignment to prevent discard requests from extending
into allocated clusters
- Fix free-cluster accounting when cluster-freeing rollback or bitmap
clearing fails
- Keep volumes marked dirty when ntfs errors have been recorded
- Compute bi_sector in 512-byte units, preventing silent corruption on
4Kn devices
- Validate sectors_per_cluster values and prevent undefined shifts when
parsing MFT and index record sizes
- Bound $AttrDef traversal to the loaded table size
- Fix MFT record resizing, memmove overlap, and kmap_local cleanup
issues
- Improve error propagation across attribute, EA, and reparse
operations, including returning -ERANGE for undersized xattr buffers
- Avoid modifying the HasEA flag when setxattr fails and return
DT_UNKNOWN when directory inode lookup fails
- Reduce contention in WOF decompression by performing block reads
outside the decompression lock
* tag 'ntfs-for-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs: (23 commits)
ntfs: take invalidate_lock in ntfs_filemap_page_mkwrite()
ntfs: take invalidate_lock in ntfs_setattr_size()
ntfs: handle signal interruption in fallocate
ntfs: fix FITRIM range alignment
ntfs: read WOF chunks outside the decompression lock
ntfs: leave HasEA flag untouched on setxattr failure
ntfs: fix race between fallocate and mmap reads
ntfs: fix memmove overlap in ntfs_new_attr_flags
ntfs: compute bi_sector in 512-byte units
ntfs: reject invalid sectors_per_cluster in the boot sector
ntfs: bound $AttrDef table walk to the loaded table size
ntfs: fix undefined behavior in mft/index record size calculation
ntfs: treat any nonzero dio zero-range return as an error
ntfs: fix incorrect MFT record pointer passed to ntfs_attr_record_resize
ntfs: do not mark the volume clean in sync_fs when errors were recorded
ntfs: skip free cluster decrement when rollback fails
ntfs: only count successfully cleared runs when freeing clusters
ntfs: fix kmap_local leak in write_mft_record_nolock() error paths
ntfs: return real error from ntfs_non_resident_attr_record_add()
ntfs: preserve error code in ntfs_resident_attr_record_add()
...
The flags defined in `enum wx_pf_flags` and its terminator
`WX_PF_FLAGS_NBITS` were originally named with a "PF" (Physical Function)
prefix. However, these flags are not exclusive to PFs and are also
utilized by Virtual Functions (VFs).
Rename the enumeration to `enum wx_flags` and the bit count to
`WX_FLAGS_NBITS` to accurately reflect their shared usage across both PF
and VF drivers, and to prevent potential confusion.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/9479B0506F544556+20260901065659.41273-1-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
vzalloc() returns zeroed memory, so the memset after the allocation is
redundant.
No functional change.
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Reviewed-by: Xuanqiang Luo <luoxuanqiang@kylinos.cn>
Link: https://patch.msgid.link/20260901110913.977745-1-ekffu200098@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Register and handle the NIX LF error (NIX_LF_ERR_INT) and poison/RAS
(NIX_LF_RAS) interrupt vectors, The handlers acknowledge the interrupt
and log the status (ratelimited) to help debug NIX LF faults.
Signed-off-by: Nitin Shetty J <nshettyj@marvell.com>
Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com>
Link: https://patch.msgid.link/20260831062600.839203-1-nshettyj@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
