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  1. 28 Mar, 2024 16 commits
    • Linus Torvalds's avatar
      Merge tag 'nfsd-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux · d8e8fbec
      Linus Torvalds authored 
      Pull nfsd fixes from Chuck Lever:

 - Address three recently introduced regressions

* tag 'nfsd-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  NFSD: CREATE_SESSION must never cache NFS4ERR_DELAY replies
  SUNRPC: Revert 561141dd
  nfsd: Fix error cleanup path in nfsd_rename()
      d8e8fbec
    • Linus Torvalds's avatar
      Merge tag 'net-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 50108c35
      Linus Torvalds authored 
      Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf, WiFi and netfilter.

  Current release - regressions:

   - ipv6: fix address dump when IPv6 is disabled on an interface

  Current release - new code bugs:

   - bpf: temporarily disable atomic operations in BPF arena

   - nexthop: fix uninitialized variable in nla_put_nh_group_stats()

  Previous releases - regressions:

   - bpf: protect against int overflow for stack access size

   - hsr: fix the promiscuous mode in offload mode

   - wifi: don't always use FW dump trig

   - tls: adjust recv return with async crypto and failed copy to
     userspace

   - tcp: properly terminate timers for kernel sockets

   - ice: fix memory corruption bug with suspend and rebuild

   - at803x: fix kernel panic with at8031_probe

   - qeth: handle deferred cc1

  Previous releases - always broken:

   - bpf: fix bug in BPF_LDX_MEMSX

   - netfilter: reject table flag and netdev basechain updates

   - inet_defrag: prevent sk release while still in use

   - wifi: pick the version of SESSION_PROTECTION_NOTIF

   - wwan: t7xx: split 64bit accesses to fix alignment issues

   - mlxbf_gige: call request_irq() after NAPI initialized

   - hns3: fix kernel crash when devlink reload during pf
     initialization"

* tag 'net-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits)
  inet: inet_defrag: prevent sk release while still in use
  Octeontx2-af: fix pause frame configuration in GMP mode
  net: lan743x: Add set RFE read fifo threshold for PCI1x1x chips
  net: bcmasp: Remove phy_{suspend/resume}
  net: bcmasp: Bring up unimac after PHY link up
  net: phy: qcom: at803x: fix kernel panic with at8031_probe
  netfilter: arptables: Select NETFILTER_FAMILY_ARP when building arp_tables.c
  netfilter: nf_tables: skip netdev hook unregistration if table is dormant
  netfilter: nf_tables: reject table flag and netdev basechain updates
  netfilter: nf_tables: reject destroy command to remove basechain hooks
  bpf: update BPF LSM designated reviewer list
  bpf: Protect against int overflow for stack access size
  bpf: Check bloom filter map value size
  bpf: fix warning for crash_kexec
  selftests: netdevsim: set test timeout to 10 minutes
  net: wan: framer: Add missing static inline qualifiers
  mlxbf_gige: call request_irq() after NAPI initialized
  tls: get psock ref after taking rxlock to avoid leak
  selftests: tls: add test with a partially invalid iov
  tls: adjust recv return with async crypto and failed copy to userspace
  ...
      50108c35
    • Florian Westphal's avatar
      inet: inet_defrag: prevent sk release while still in use · 18685451
      Florian Westphal authored 
      ip_local_out() and other functions can pass skb->sk as function argument.

If the skb is a fragment and reassembly happens before such function call
returns, the sk must not be released.

This affects skb fragments reassembled via netfilter or similar
modules, e.g. openvswitch or ct_act.c, when run as part of tx pipeline.

Eric Dumazet made an initial analysis of this bug.  Quoting Eric:
  Calling ip_defrag() in output path is also implying skb_orphan(),
  which is buggy because output path relies on sk not disappearing.

  A relevant old patch about the issue was :
  8282f274 ("inet: frag: Always orphan skbs inside ip_defrag()")

  [..]

  net/ipv4/ip_output.c depends on skb->sk being set, and probably to an
  inet socket, not an arbitrary one.

  If we orphan the packet in ipvlan, then downstream things like FQ
  packet scheduler will not work properly.

  We need to change ip_defrag() to only use skb_orphan() when really
  needed, ie whenever frag_list is going to be used.

Eric suggested to stash sk in fragment queue and made an initial patch.
However there is a problem with this:

If skb is refragmented again right after, ip_do_fragment() will copy
head->sk to the new fragments, and sets up destructor to sock_wfree.
IOW, we have no choice but to fix up sk_wmem accouting to reflect the
fully reassembled skb, else wmem will underflow.

This change moves the orphan down into the core, to last possible moment.
As ip_defrag_offset is aliased with sk_buff->sk member, we must move the
offset into the FRAG_CB, else skb->sk gets clobbered.

This allows to delay the orphaning long enough to learn if the skb has
to be queued or if the skb is completing the reasm queue.

In the former case, things work as before, skb is orphaned.  This is
safe because skb gets queued/stolen and won't continue past reasm engine.

In the latter case, we will steal the skb->sk reference, reattach it to
the head skb, and fix up wmem accouting when inet_frag inflates truesize.

Fixes: 7026b1dd ("netfilter: Pass socket pointer down through okfn().")
Diagnosed-by: default avatarEric Dumazet <edumazet@google.com>
Reported-by: default avatarxingwei lee <xrivendell7@gmail.com>
Reported-by: default avataryue sun <samsun1006219@gmail.com>
Reported-by: syzbot+e5167d7144a62715044c@syzkaller.appspotmail.com
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Reviewed-by: default avatarEric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240326101845.30836-1-fw@strlen.deSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      18685451
    • Hariprasad Kelam's avatar
      Octeontx2-af: fix pause frame configuration in GMP mode · 40d4b480
      Hariprasad Kelam authored 
      The Octeontx2 MAC block (CGX) has separate data paths (SMU and GMP) for
different speeds, allowing for efficient data transfer.

The previous patch which added pause frame configuration has a bug due
to which pause frame feature is not working in GMP mode.

This patch fixes the issue by configurating appropriate registers.

Fixes: f7e086e7 ("octeontx2-af: Pause frame configuration at cgx")
Signed-off-by: default avatarHariprasad Kelam <hkelam@marvell.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240326052720.4441-1-hkelam@marvell.comSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      40d4b480
    • Raju Lakkaraju's avatar
      net: lan743x: Add set RFE read fifo threshold for PCI1x1x chips · e4a58989
      Raju Lakkaraju authored 
      PCI11x1x Rev B0 devices might drop packets when receiving back to back frames
at 2.5G link speed. Change the B0 Rev device's Receive filtering Engine FIFO
threshold parameter from its hardware default of 4 to 3 dwords to prevent the
problem. Rev C0 and later hardware already defaults to 3 dwords.

Fixes: bb4f6bff ("net: lan743x: Add PCI11010 / PCI11414 device IDs")
Signed-off-by: default avatarRaju Lakkaraju <Raju.Lakkaraju@microchip.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240326065805.686128-1-Raju.Lakkaraju@microchip.comSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      e4a58989
    • Paolo Abeni's avatar
      Merge branch 'net-bcmasp-phy-managements-fixes' · eb67cdb3
      Paolo Abeni authored 
      Justin Chen says:

====================
net: bcmasp: phy managements fixes

Fix two issues.

- The unimac may be put in a bad state if PHY RX clk doesn't exist
  during reset. Work around this by bringing the unimac out of reset
  during phy up.

- Remove redundant phy_{suspend/resume}
====================

Link: https://lore.kernel.org/r/20240325193025.1540737-1-justin.chen@broadcom.comSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      eb67cdb3
    • Justin Chen's avatar
      net: bcmasp: Remove phy_{suspend/resume} · 4494c10e
      Justin Chen authored 
      phy_{suspend/resume} is redundant. It gets called from phy_{stop/start}.

Fixes: 490cb412 ("net: bcmasp: Add support for ASP2.0 Ethernet controller")
Signed-off-by: default avatarJustin Chen <justin.chen@broadcom.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      4494c10e
    • Justin Chen's avatar
      net: bcmasp: Bring up unimac after PHY link up · dfd222e2
      Justin Chen authored 
      The unimac requires the PHY RX clk during reset or it may be put
into a bad state. Bring up the unimac after link up to ensure the
PHY RX clk exists.

Fixes: 490cb412 ("net: bcmasp: Add support for ASP2.0 Ethernet controller")
Signed-off-by: default avatarJustin Chen <justin.chen@broadcom.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      dfd222e2
    • Christian Marangi's avatar
      net: phy: qcom: at803x: fix kernel panic with at8031_probe · 6a4aee27
      Christian Marangi authored 
      On reworking and splitting the at803x driver, in splitting function of
at803x PHYs it was added a NULL dereference bug where priv is referenced
before it's actually allocated and then is tried to write to for the
is_1000basex and is_fiber variables in the case of at8031, writing on
the wrong address.

Fix this by correctly setting priv local variable only after
at803x_probe is called and actually allocates priv in the phydev struct.
Reported-by: default avatarWilliam Wortel <wwortel@dorpstraat.com>
Cc: <stable@vger.kernel.org>
Fixes: 25d2ba94 ("net: phy: at803x: move specific at8031 probe mode check to dedicated probe")
Signed-off-by: default avatarChristian Marangi <ansuelsmth@gmail.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20240325190621.2665-1-ansuelsmth@gmail.comSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      6a4aee27
    • Paolo Abeni's avatar
      Merge tag 'nf-24-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf · 005e528c
      Paolo Abeni authored 
      Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

Patch #1 reject destroy chain command to delete device hooks in netdev
         family, hence, only delchain commands are allowed.

Patch #2 reject table flag update interference with netdev basechain
	 hook updates, this can leave hooks in inconsistent
	 registration/unregistration state.

Patch #3 do not unregister netdev basechain hooks if table is dormant.
	 Otherwise, splat with double unregistration is possible.

Patch #4 fixes Kconfig to allow to restore IP_NF_ARPTABLES,
	 from Kuniyuki Iwashima.

There are a more fixes still in progress on my side that need more work.

* tag 'nf-24-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: arptables: Select NETFILTER_FAMILY_ARP when building arp_tables.c
  netfilter: nf_tables: skip netdev hook unregistration if table is dormant
  netfilter: nf_tables: reject table flag and netdev basechain updates
  netfilter: nf_tables: reject destroy command to remove basechain hooks
====================

Link: https://lore.kernel.org/r/20240328031855.2063-1-pablo@netfilter.orgSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      005e528c
    • Paolo Abeni's avatar
      Merge tag 'for-net' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf · 7e6f4b2a
      Paolo Abeni authored 
      Alexei Starovoitov says:

====================
pull-request: bpf 2024-03-27

The following pull-request contains BPF updates for your *net* tree.

We've added 4 non-merge commits during the last 1 day(s) which contain
a total of 5 files changed, 26 insertions(+), 3 deletions(-).

The main changes are:

1) Fix bloom filter value size validation and protect the verifier
   against such mistakes, from Andrei.

2) Fix build due to CONFIG_KEXEC_CORE/CRASH_DUMP split, from Hari.

3) Update bpf_lsm maintainers entry, from Matt.

* tag 'for-net' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf: update BPF LSM designated reviewer list
  bpf: Protect against int overflow for stack access size
  bpf: Check bloom filter map value size
  bpf: fix warning for crash_kexec
====================

Link: https://lore.kernel.org/r/20240328012938.24249-1-alexei.starovoitov@gmail.comSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      7e6f4b2a
    • Linus Torvalds's avatar
      Merge tag 'erofs-for-6.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs · 8d025e20
      Linus Torvalds authored 
      Pull erofs fixes from Gao Xiang:

 - Add a new reviewer Sandeep Dhavale to build a healthier community

 - Drop experimental warning for FSDAX

* tag 'erofs-for-6.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  MAINTAINERS: erofs: add myself as reviewer
  erofs: drop experimental warning for FSDAX
      8d025e20
    • Kuniyuki Iwashima's avatar
      netfilter: arptables: Select NETFILTER_FAMILY_ARP when building arp_tables.c · 15fba562
      Kuniyuki Iwashima authored 
      syzkaller started to report a warning below [0] after consuming the
commit 4654467d ("netfilter: arptables: allow xtables-nft only
builds").

The change accidentally removed the dependency on NETFILTER_FAMILY_ARP
from IP_NF_ARPTABLES.

If NF_TABLES_ARP is not enabled on Kconfig, NETFILTER_FAMILY_ARP will
be removed and some code necessary for arptables will not be compiled.

  $ grep -E "(NETFILTER_FAMILY_ARP|IP_NF_ARPTABLES|NF_TABLES_ARP)" .config
  CONFIG_NETFILTER_FAMILY_ARP=y
  # CONFIG_NF_TABLES_ARP is not set
  CONFIG_IP_NF_ARPTABLES=y

  $ make olddefconfig

  $ grep -E "(NETFILTER_FAMILY_ARP|IP_NF_ARPTABLES|NF_TABLES_ARP)" .config
  # CONFIG_NF_TABLES_ARP is not set
  CONFIG_IP_NF_ARPTABLES=y

So, when nf_register_net_hooks() is called for arptables, it will
trigger the splat below.

Now IP_NF_ARPTABLES is only enabled by IP_NF_ARPFILTER, so let's
restore the dependency on NETFILTER_FAMILY_ARP in IP_NF_ARPFILTER.

[0]:
WARNING: CPU: 0 PID: 242 at net/netfilter/core.c:316 nf_hook_entry_head+0x1e1/0x2c0 net/netfilter/core.c:316
Modules linked in:
CPU: 0 PID: 242 Comm: syz-executor.0 Not tainted 6.8.0-12821-g537c2e91 #10
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:nf_hook_entry_head+0x1e1/0x2c0 net/netfilter/core.c:316
Code: 83 fd 04 0f 87 bc 00 00 00 e8 5b 84 83 fd 4d 8d ac ec a8 0b 00 00 e8 4e 84 83 fd 4c 89 e8 5b 5d 41 5c 41 5d c3 e8 3f 84 83 fd <0f> 0b e8 38 84 83 fd 45 31 ed 5b 5d 4c 89 e8 41 5c 41 5d c3 e8 26
RSP: 0018:ffffc90000b8f6e8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff83c42164
RDX: ffff888106851180 RSI: ffffffff83c42321 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 000000000000000a
R10: 0000000000000003 R11: ffff8881055c2f00 R12: ffff888112b78000
R13: 0000000000000000 R14: ffff8881055c2f00 R15: ffff8881055c2f00
FS:  00007f377bd78800(0000) GS:ffff88811b000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000496068 CR3: 000000011298b003 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 __nf_register_net_hook+0xcd/0x7a0 net/netfilter/core.c:428
 nf_register_net_hook+0x116/0x170 net/netfilter/core.c:578
 nf_register_net_hooks+0x5d/0xc0 net/netfilter/core.c:594
 arpt_register_table+0x250/0x420 net/ipv4/netfilter/arp_tables.c:1553
 arptable_filter_table_init+0x41/0x60 net/ipv4/netfilter/arptable_filter.c:39
 xt_find_table_lock+0x2e9/0x4b0 net/netfilter/x_tables.c:1260
 xt_request_find_table_lock+0x2b/0xe0 net/netfilter/x_tables.c:1285
 get_info+0x169/0x5c0 net/ipv4/netfilter/arp_tables.c:808
 do_arpt_get_ctl+0x3f9/0x830 net/ipv4/netfilter/arp_tables.c:1444
 nf_getsockopt+0x76/0xd0 net/netfilter/nf_sockopt.c:116
 ip_getsockopt+0x17d/0x1c0 net/ipv4/ip_sockglue.c:1777
 tcp_getsockopt+0x99/0x100 net/ipv4/tcp.c:4373
 do_sock_getsockopt+0x279/0x360 net/socket.c:2373
 __sys_getsockopt+0x115/0x1e0 net/socket.c:2402
 __do_sys_getsockopt net/socket.c:2412 [inline]
 __se_sys_getsockopt net/socket.c:2409 [inline]
 __x64_sys_getsockopt+0xbd/0x150 net/socket.c:2409
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x4f/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x46/0x4e
RIP: 0033:0x7f377beca6fe
Code: 1f 44 00 00 48 8b 15 01 97 0a 00 f7 d8 64 89 02 b8 ff ff ff ff eb b8 0f 1f 44 00 00 f3 0f 1e fa 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 c9
RSP: 002b:00000000005df728 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00000000004966e0 RCX: 00007f377beca6fe
RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000042938a R08: 00000000005df73c R09: 00000000005df800
R10: 00000000004966e8 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000496068 R14: 0000000000000003 R15: 00000000004bc9d8
 </TASK>

Fixes: 4654467d ("netfilter: arptables: allow xtables-nft only builds")
Reported-by: default avatarsyzkaller <syzkaller@googlegroups.com>
Signed-off-by: default avatarKuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      15fba562
    • Pablo Neira Ayuso's avatar
      netfilter: nf_tables: skip netdev hook unregistration if table is dormant · 216e7bf7
      Pablo Neira Ayuso authored 
      Skip hook unregistration when adding or deleting devices from an
existing netdev basechain. Otherwise, commit/abort path try to
unregister hooks which not enabled.

Fixes: b9703ed4 ("netfilter: nf_tables: support for adding new devices to an existing netdev chain")
Fixes: 7d937b10 ("netfilter: nf_tables: support for deleting devices in an existing netdev chain")
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      216e7bf7
    • Pablo Neira Ayuso's avatar
      netfilter: nf_tables: reject table flag and netdev basechain updates · 1e1fb6f0
      Pablo Neira Ayuso authored 
      netdev basechain updates are stored in the transaction object hook list.
When setting on the table dormant flag, it iterates over the existing
hooks in the basechain. Thus, skipping the hooks that are being
added/deleted in this transaction, which leaves hook registration in
inconsistent state.

Reject table flag updates in combination with netdev basechain updates
in the same batch:

- Update table flags and add/delete basechain: Check from basechain update
  path if there are pending flag updates for this table.
- add/delete basechain and update table flags: Iterate over the transaction
  list to search for basechain updates from the table update path.

In both cases, the batch is rejected. Based on suggestion from Florian Westphal.

Fixes: b9703ed4 ("netfilter: nf_tables: support for adding new devices to an existing netdev chain")
Fixes: 7d937b10 ("netfilter: nf_tables: support for deleting devices in an existing netdev chain")
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      1e1fb6f0
    • Pablo Neira Ayuso's avatar
      netfilter: nf_tables: reject destroy command to remove basechain hooks · b32ca27f
      Pablo Neira Ayuso authored 
      Report EOPNOTSUPP if NFT_MSG_DESTROYCHAIN is used to delete hooks in an
existing netdev basechain, thus, only NFT_MSG_DELCHAIN is allowed.

Fixes: 7d937b10 ("netfilter: nf_tables: support for deleting devices in an existing netdev chain")
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      b32ca27f
  3. 27 Mar, 2024 23 commits
  5. 26 Mar, 2024 1 commit
    • Baoquan He's avatar
      crash: use macro to add crashk_res into iomem early for specific arch · 32fbe524
      Baoquan He authored 
      There are regression reports[1][2] that crashkernel region on x86_64 can't
be added into iomem tree sometime.  This causes the later failure of kdump
loading.

This happened after commit 4a693ce6 ("kdump: defer the insertion of
crashkernel resources") was merged.

Even though, these reported issues are proved to be related to other
component, they are just exposed after above commmit applied, I still
would like to keep crashk_res and crashk_low_res being added into iomem
early as before because the early adding has been always there on x86_64
and working very well.  For safety of kdump, Let's change it back.

Here, add a macro HAVE_ARCH_ADD_CRASH_RES_TO_IOMEM_EARLY to limit that
only ARCH defining the macro can have the early adding
crashk_res/_low_res into iomem. Then define
HAVE_ARCH_ADD_CRASH_RES_TO_IOMEM_EARLY on x86 to enable it.

Note: In reserve_crashkernel_low(), there's a remnant of crashk_low_res
handling which was mistakenly added back in commit 85fcde40 ("kexec:
split crashkernel reservation code out from crash_core.c").

[1]
[PATCH V2] x86/kexec: do not update E820 kexec table for setup_data
https://lore.kernel.org/all/Zfv8iCL6CT2JqLIC@darkstar.users.ipa.redhat.com/T/#u

[2]
Question about Address Range Validation in Crash Kernel Allocation
https://lore.kernel.org/all/4eeac1f733584855965a2ea62fa4da58@huawei.com/T/#u

Link: https://lkml.kernel.org/r/ZgDYemRQ2jxjLkq+@MiWiFi-R3L-srv
Fixes: 4a693ce6 ("kdump: defer the insertion of crashkernel resources")
Signed-off-by: default avatarBaoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Huacai Chen <chenhuacai@loongson.cn>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Bohac <jbohac@suse.cz>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      32fbe524
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