Commit Graph

1152761 Commits

Author SHA1 Message Date
Eric Dumazet
42c7ded0ee bonding: fix lockdep splat in bond_miimon_commit()
bond_miimon_commit() is run while RTNL is held, not RCU.

WARNING: suspicious RCU usage
6.1.0-syzkaller-09671-g89529367293c #0 Not tainted
-----------------------------
drivers/net/bonding/bond_main.c:2704 suspicious rcu_dereference_check() usage!

Fixes: e95cc44763 ("bonding: do failover when high prio link up")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Hangbin Liu <liuhangbin@gmail.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Link: https://lore.kernel.org/r/20221220130831.1480888-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-12-22 10:40:35 +01:00
Jakub Kicinski
43ae218f69 Merge branch 'mptcp-locking-fixes'
Mat Martineau says:

====================
mptcp: Locking fixes

Two separate locking fixes for the networking tree:

Patch 1 addresses a MPTCP fastopen error-path deadlock that was found
with syzkaller.

Patch 2 works around a lockdep false-positive between MPTCP listening and
non-listening sockets at socket destruct time.
====================

Link: https://lore.kernel.org/r/20221220195215.238353-1-mathew.j.martineau@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 18:06:02 -08:00
Paolo Abeni
fec3adfd75 mptcp: fix lockdep false positive
MattB reported a lockdep splat in the mptcp listener code cleanup:

 WARNING: possible circular locking dependency detected
 packetdrill/14278 is trying to acquire lock:
 ffff888017d868f0 ((work_completion)(&msk->work)){+.+.}-{0:0}, at: __flush_work (kernel/workqueue.c:3069)

 but task is already holding lock:
 ffff888017d84130 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_close (net/mptcp/protocol.c:2973)

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #1 (sk_lock-AF_INET){+.+.}-{0:0}:
        __lock_acquire (kernel/locking/lockdep.c:5055)
        lock_acquire (kernel/locking/lockdep.c:466)
        lock_sock_nested (net/core/sock.c:3463)
        mptcp_worker (net/mptcp/protocol.c:2614)
        process_one_work (kernel/workqueue.c:2294)
        worker_thread (include/linux/list.h:292)
        kthread (kernel/kthread.c:376)
        ret_from_fork (arch/x86/entry/entry_64.S:312)

 -> #0 ((work_completion)(&msk->work)){+.+.}-{0:0}:
        check_prev_add (kernel/locking/lockdep.c:3098)
        validate_chain (kernel/locking/lockdep.c:3217)
        __lock_acquire (kernel/locking/lockdep.c:5055)
        lock_acquire (kernel/locking/lockdep.c:466)
        __flush_work (kernel/workqueue.c:3070)
        __cancel_work_timer (kernel/workqueue.c:3160)
        mptcp_cancel_work (net/mptcp/protocol.c:2758)
        mptcp_subflow_queue_clean (net/mptcp/subflow.c:1817)
        __mptcp_close_ssk (net/mptcp/protocol.c:2363)
        mptcp_destroy_common (net/mptcp/protocol.c:3170)
        mptcp_destroy (include/net/sock.h:1495)
        __mptcp_destroy_sock (net/mptcp/protocol.c:2886)
        __mptcp_close (net/mptcp/protocol.c:2959)
        mptcp_close (net/mptcp/protocol.c:2974)
        inet_release (net/ipv4/af_inet.c:432)
        __sock_release (net/socket.c:651)
        sock_close (net/socket.c:1367)
        __fput (fs/file_table.c:320)
        task_work_run (kernel/task_work.c:181 (discriminator 1))
        exit_to_user_mode_prepare (include/linux/resume_user_mode.h:49)
        syscall_exit_to_user_mode (kernel/entry/common.c:130)
        do_syscall_64 (arch/x86/entry/common.c:87)
        entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)

 other info that might help us debug this:

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(sk_lock-AF_INET);
                                lock((work_completion)(&msk->work));
                                lock(sk_lock-AF_INET);
   lock((work_completion)(&msk->work));

  *** DEADLOCK ***

The report is actually a false positive, since the only existing lock
nesting is the msk socket lock acquired by the mptcp work.
cancel_work_sync() is invoked without the relevant socket lock being
held, but under a different (the msk listener) socket lock.

We could silence the splat adding a per workqueue dynamic lockdep key,
but that looks overkill. Instead just tell lockdep the msk socket lock
is not held around cancel_work_sync().

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/322
Fixes: 30e51b923e ("mptcp: fix unreleased socket in accept queue")
Reported-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 18:05:47 -08:00
Paolo Abeni
7d803344fd mptcp: fix deadlock in fastopen error path
MatM reported a deadlock at fastopening time:

INFO: task syz-executor.0:11454 blocked for more than 143 seconds.
      Tainted: G S                 6.1.0-rc5-03226-gdb0157db5153 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:25104 pid:11454 ppid:424    flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x5c2/0x1550 kernel/sched/core.c:6503
 schedule+0xe8/0x1c0 kernel/sched/core.c:6579
 __lock_sock+0x142/0x260 net/core/sock.c:2896
 lock_sock_nested+0xdb/0x100 net/core/sock.c:3466
 __mptcp_close_ssk+0x1a3/0x790 net/mptcp/protocol.c:2328
 mptcp_destroy_common+0x16a/0x650 net/mptcp/protocol.c:3171
 mptcp_disconnect+0xb8/0x450 net/mptcp/protocol.c:3019
 __inet_stream_connect+0x897/0xa40 net/ipv4/af_inet.c:720
 tcp_sendmsg_fastopen+0x3dd/0x740 net/ipv4/tcp.c:1200
 mptcp_sendmsg_fastopen net/mptcp/protocol.c:1682 [inline]
 mptcp_sendmsg+0x128a/0x1a50 net/mptcp/protocol.c:1721
 inet6_sendmsg+0x11f/0x150 net/ipv6/af_inet6.c:663
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xf7/0x190 net/socket.c:734
 ____sys_sendmsg+0x336/0x970 net/socket.c:2476
 ___sys_sendmsg+0x122/0x1c0 net/socket.c:2530
 __sys_sendmmsg+0x18d/0x460 net/socket.c:2616
 __do_sys_sendmmsg net/socket.c:2645 [inline]
 __se_sys_sendmmsg net/socket.c:2642 [inline]
 __x64_sys_sendmmsg+0x9d/0x110 net/socket.c:2642
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5920a75e7d
RSP: 002b:00007f59201e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f5920bb4f80 RCX: 00007f5920a75e7d
RDX: 0000000000000001 RSI: 0000000020002940 RDI: 0000000000000005
RBP: 00007f5920ae7593 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020004050 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5920bb4f80 R15: 00007f59201c8000
 </TASK>

In the error path, tcp_sendmsg_fastopen() ends-up calling
mptcp_disconnect(), and the latter tries to close each
subflow, acquiring the socket lock on each of them.

At fastopen time, we have a single subflow, and such subflow
socket lock is already held by the called, causing the deadlock.

We already track the 'fastopen in progress' status inside the msk
socket. Use it to address the issue, making mptcp_disconnect() a
no op when invoked from the fastopen (error) path and doing the
relevant cleanup after releasing the subflow socket lock.

While at the above, rename the fastopen status bit to something
more meaningful.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/321
Fixes: fa9e57468a ("mptcp: fix abba deadlock on fastopen")
Reported-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 18:05:39 -08:00
Yinjun Zhang
e20aa071cd nfp: fix schedule in atomic context when sync mc address
The callback `.ndo_set_rx_mode` is called in atomic context, sleep
is not allowed in the implementation. Now use workqueue mechanism
to avoid this issue.

Fixes: de62486449 ("nfp: add support for multicast filter")
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Reviewed-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20221220152100.1042774-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 18:03:42 -08:00
Ronak Doshi
3d8f2c4269 vmxnet3: correctly report csum_level for encapsulated packet
Commit dacce2be33 ("vmxnet3: add geneve and vxlan tunnel offload
support") added support for encapsulation offload. However, the
pathc did not report correctly the csum_level for encapsulated packet.

This patch fixes this issue by reporting correct csum level for the
encapsulated packet.

Fixes: dacce2be33 ("vmxnet3: add geneve and vxlan tunnel offload support")
Signed-off-by: Ronak Doshi <doshir@vmware.com>
Acked-by: Peng Li <lpeng@vmware.com>
Link: https://lore.kernel.org/r/20221220202556.24421-1-doshir@vmware.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 17:55:30 -08:00
Aaron Conole
95637d91fe net: openvswitch: release vport resources on failure
A recent commit introducing upcall packet accounting failed to properly
release the vport object when the per-cpu stats struct couldn't be
allocated.  This can cause dangling pointers to dp objects long after
they've been released.

Cc: wangchuanlei <wangchuanlei@inspur.com>
Fixes: 1933ea365a ("net: openvswitch: Add support to count upcall packets")
Reported-by: syzbot+8f4e2dcfcb3209ac35f9@syzkaller.appspotmail.com
Signed-off-by: Aaron Conole <aconole@redhat.com>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://lore.kernel.org/r/20221220212717.526780-1-aconole@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 17:48:12 -08:00
Antoine Tenart
f2575c8f40 net: vrf: determine the dst using the original ifindex for multicast
Multicast packets received on an interface bound to a VRF are marked as
belonging to the VRF and the skb device is updated to point to the VRF
device itself. This was fine even when a route was associated to a
device as when performing a fib table lookup 'oif' in fib6_table_lookup
(coming from 'skb->dev->ifindex' in ip6_route_input) was set to 0 when
FLOWI_FLAG_SKIP_NH_OIF was set.

With commit 40867d74c3 ("net: Add l3mdev index to flow struct and
avoid oif reset for port devices") this is not longer true and multicast
traffic is not received on the original interface.

Instead of adding back a similar check in fib6_table_lookup determine
the dst using the original ifindex for multicast VRF traffic. To make
things consistent across the function do the above for all strict
packets, which was the logic before commit 6f12fa7755 ("vrf: mark skb
for multicast or link-local as enslaved to VRF"). Note that reverting to
this behavior should be fine as the change was about marking packets
belonging to the VRF, not about their dst.

Fixes: 40867d74c3 ("net: Add l3mdev index to flow struct and avoid oif reset for port devices")
Reported-by: Jianlin Shi <jishi@redhat.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20221220171825.1172237-1-atenart@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 17:47:37 -08:00
Maciej Fijalkowski
53fc61be27 ice: xsk: do not use xdp_return_frame() on tx_buf->raw_buf
Previously ice XDP xmit routine was changed in a way that it avoids
xdp_buff->xdp_frame conversion as it is simply not needed for handling
XDP_TX action and what is more it saves us CPU cycles. This routine is
re-used on ZC driver to handle XDP_TX action.

Although for XDP_TX on Rx ZC xdp_buff that comes from xsk_buff_pool is
converted to xdp_frame, xdp_frame itself is not stored inside
ice_tx_buf, we only store raw data pointer. Casting this pointer to
xdp_frame and calling against it xdp_return_frame in
ice_clean_xdp_tx_buf() results in undefined behavior.

To fix this, simply call page_frag_free() on tx_buf->raw_buf.
Later intention is to remove the buff->frame conversion in order to
simplify the codebase and improve XDP_TX performance on ZC.

Fixes: 126cdfe100 ("ice: xsk: Improve AF_XDP ZC Tx and use batching API")
Reported-and-tested-by: Robin Cowley <robin.cowley@thehutgroup.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Piotr Raczynski <piotr.raczynski@.intel.com>
Link: https://lore.kernel.org/r/20221220175448.693999-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 17:46:49 -08:00
Jakub Kicinski
aa6c3961a3 wireless fixes for v6.2
First set of fixes for v6.2. Fix for a link error in mt76, fix for an
 iwlwifi firmware crash and two cleanups.
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Merge tag 'wireless-2022-12-21' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Kalle Valo says:

====================
wireless fixes for v6.2

First set of fixes for v6.2. Fix for a link error in mt76, fix for an
iwlwifi firmware crash and two cleanups.

* tag 'wireless-2022-12-21' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: ath9k: use proper statements in conditionals
  wifi: mt76: mt7996: select CONFIG_RELAY
  wifi: iwlwifi: fw: skip PPAG for JF
  wifi: ti: remove obsolete lines in the Makefile
====================

Link: https://lore.kernel.org/r/20221221180808.96A8AC433EF@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-21 16:44:56 -08:00
Linus Torvalds
609d3bc623 Including fixes from bpf, netfilter and can.
Current release - regressions:
 
  - bpf: synchronize dispatcher update with bpf_dispatcher_xdp_func
 
  - rxrpc:
   - fix security setting propagation
   - fix null-deref in rxrpc_unuse_local()
   - fix switched parameters in peer tracing
 
 Current release - new code bugs:
 
  - rxrpc:
    - fix I/O thread startup getting skipped
    - fix locking issues in rxrpc_put_peer_locked()
    - fix I/O thread stop
    - fix uninitialised variable in rxperf server
    - fix the return value of rxrpc_new_incoming_call()
 
  - microchip: vcap: fix initialization of value and mask
 
  - nfp: fix unaligned io read of capabilities word
 
 Previous releases - regressions:
 
  - stop in-kernel socket users from corrupting socket's task_frag
 
  - stream: purge sk_error_queue in sk_stream_kill_queues()
 
  - openvswitch: fix flow lookup to use unmasked key
 
  - dsa: mv88e6xxx: avoid reg_lock deadlock in mv88e6xxx_setup_port()
 
  - devlink:
    - hold region lock when flushing snapshots
    - protect devlink dump by the instance lock
 
 Previous releases - always broken:
 
  - bpf:
    - prevent leak of lsm program after failed attach
    - resolve fext program type when checking map compatibility
 
  - skbuff: account for tail adjustment during pull operations
 
  - macsec: fix net device access prior to holding a lock
 
  - bonding: switch back when high prio link up
 
  - netfilter: flowtable: really fix NAT IPv6 offload
 
  - enetc: avoid buffer leaks on xdp_do_redirect() failure
 
  - unix: fix race in SOCK_SEQPACKET's unix_dgram_sendmsg()
 
  - dsa: microchip: remove IRQF_TRIGGER_FALLING in request_threaded_irq
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf, netfilter and can.

  Current release - regressions:

   - bpf: synchronize dispatcher update with bpf_dispatcher_xdp_func

   - rxrpc:
      - fix security setting propagation
      - fix null-deref in rxrpc_unuse_local()
      - fix switched parameters in peer tracing

  Current release - new code bugs:

   - rxrpc:
      - fix I/O thread startup getting skipped
      - fix locking issues in rxrpc_put_peer_locked()
      - fix I/O thread stop
      - fix uninitialised variable in rxperf server
      - fix the return value of rxrpc_new_incoming_call()

   - microchip: vcap: fix initialization of value and mask

   - nfp: fix unaligned io read of capabilities word

  Previous releases - regressions:

   - stop in-kernel socket users from corrupting socket's task_frag

   - stream: purge sk_error_queue in sk_stream_kill_queues()

   - openvswitch: fix flow lookup to use unmasked key

   - dsa: mv88e6xxx: avoid reg_lock deadlock in mv88e6xxx_setup_port()

   - devlink:
      - hold region lock when flushing snapshots
      - protect devlink dump by the instance lock

  Previous releases - always broken:

   - bpf:
      - prevent leak of lsm program after failed attach
      - resolve fext program type when checking map compatibility

   - skbuff: account for tail adjustment during pull operations

   - macsec: fix net device access prior to holding a lock

   - bonding: switch back when high prio link up

   - netfilter: flowtable: really fix NAT IPv6 offload

   - enetc: avoid buffer leaks on xdp_do_redirect() failure

   - unix: fix race in SOCK_SEQPACKET's unix_dgram_sendmsg()

   - dsa: microchip: remove IRQF_TRIGGER_FALLING in
     request_threaded_irq"

* tag 'net-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (64 commits)
  net: fec: check the return value of build_skb()
  net: simplify sk_page_frag
  Treewide: Stop corrupting socket's task_frag
  net: Introduce sk_use_task_frag in struct sock.
  mctp: Remove device type check at unregister
  net: dsa: microchip: remove IRQF_TRIGGER_FALLING in request_threaded_irq
  can: kvaser_usb: hydra: help gcc-13 to figure out cmd_len
  can: flexcan: avoid unbalanced pm_runtime_enable warning
  Documentation: devlink: add missing toc entry for etas_es58x devlink doc
  mctp: serial: Fix starting value for frame check sequence
  nfp: fix unaligned io read of capabilities word
  net: stream: purge sk_error_queue in sk_stream_kill_queues()
  myri10ge: Fix an error handling path in myri10ge_probe()
  net: microchip: vcap: Fix initialization of value and mask
  rxrpc: Fix the return value of rxrpc_new_incoming_call()
  rxrpc: rxperf: Fix uninitialised variable
  rxrpc: Fix I/O thread stop
  rxrpc: Fix switched parameters in peer tracing
  rxrpc: Fix locking issues in rxrpc_put_peer_locked()
  rxrpc: Fix I/O thread startup getting skipped
  ...
2022-12-21 08:41:32 -08:00
Linus Torvalds
878cf96f68 fs.vfsuid.ima.v6.2-rc1
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Merge tag 'fs.vfsuid.ima.v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

Pull vfsuid cleanup from Christian Brauner:
 "This moves the ima specific vfs{g,u}id_t comparison helpers out of the
  header and into the one file in ima where they are used.

  We shouldn't incentivize people to use them by placing them into the
  header. As discussed and suggested by Linus in [1] let's just define
  them locally in the one file in ima where they are used"

Link: https://lore.kernel.org/lkml/CAHk-=wj4BpEwUd=OkTv1F9uykvSrsBNZJVHMp+p_+e2kiV71_A@mail.gmail.com [1]

* tag 'fs.vfsuid.ima.v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  mnt_idmapping: move ima-only helpers to ima
2022-12-21 08:13:01 -08:00
Linus Torvalds
222882c2ab Random number generator fixes for Linux 6.2-rc1.
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Merge tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random

Pull more random number generator updates from Jason Donenfeld:
 "Two remaining changes that are now possible after you merged a few
  other trees:

   - #include <asm/archrandom.h> can be removed from random.h now,
     making the direct use of the arch_random_* API more of a private
     implementation detail between the archs and random.c, rather than
     something for general consumers.

   - Two additional uses of prandom_u32_max() snuck in during the
     initial phase of pulls, so these have been converted to
     get_random_u32_below(), and now the deprecated prandom_u32_max()
     alias -- which was just a wrapper around get_random_u32_below() --
     can be removed.

  In addition, there is one fix:

   - Check efi_rt_services_supported() before attempting to use an EFI
     runtime function.

     This affected EFI systems that disable runtime services yet still
     boot via EFI (e.g. the reporter's Lenovo Thinkpad X13s laptop), as
     well systems where EFI runtime services have been forcibly
     disabled, such as on PREEMPT_RT.

     On those machines, a very early and hard to diagnose crash would
     happen, preventing boot"

* tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  prandom: remove prandom_u32_max()
  efi: random: fix NULL-deref when refreshing seed
  random: do not include <asm/archrandom.h> from random.h
2022-12-21 08:02:30 -08:00
Linus Torvalds
19822e3ee4 Urgent RCU pull request for v6.2
This commit fixes a lockdep false positive in synchronize_rcu() that
 can otherwise occur during early boot.  Theis fix simply avoids invoking
 lockdep if the scheduler has not yet been initialized, that is, during
 that portion of boot when interrupts are disabled.
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Merge tag 'rcu-urgent.2022.12.17a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull RCU fix from Paul McKenney:
 "This fixes a lockdep false positive in synchronize_rcu() that can
  otherwise occur during early boot.

  The fix simply avoids invoking lockdep if the scheduler has not yet
  been initialized, that is, during that portion of boot when interrupts
  are disabled"

* tag 'rcu-urgent.2022.12.17a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  rcu: Don't assert interrupts enabled too early in boot
2022-12-21 07:59:57 -08:00
Wei Fang
19e72b064f net: fec: check the return value of build_skb()
The build_skb might return a null pointer but there is no check on the
return value in the fec_enet_rx_queue(). So a null pointer dereference
might occur. To avoid this, we check the return value of build_skb. If
the return value is a null pointer, the driver will recycle the page and
update the statistic of ndev. Then jump to rx_processing_done to clear
the status flags of the BD so that the hardware can recycle the BD.

Fixes: 95698ff617 ("net: fec: using page pool to manage RX buffers")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Shenwei Wang <Shenwei.wang@nxp.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20221219022755.1047573-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-20 11:33:24 -08:00
Linus Torvalds
b6bb9676f2 m68knommu: updates and fixes for v6.2
Fixes include:
 . use strscpy() instead of strncpy() for cmdline setup
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Merge tag 'm68knommu-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

Pull m68knommu update from Greg Ungerer:
 "Only a single change to use the safer strscpy() instead of strncpy()
  when setting up the cmdline"

* tag 'm68knommu-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: use strscpy() to instead of strncpy()
2022-12-20 08:56:35 -06:00
Linus Torvalds
32d528c4b8 SPDX/License additions for 6.2-rc1
Here are 2 small updates for LICENSES and some kernel files that add the
 Copyleft-next license and use it in a SPDX tag as a dual-license for
 some kernel files.
 
 These have been discussed thoroughly in public on the linux-spdx mailing
 list, and have the needed acks on them, as well as having been in
 linux-next with no reported issues for quite some time.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull SPDX/License additions from Greg KH:
 "Here are two small updates for LICENSES and some kernel files that add
  the Copyleft-next license and use it in a SPDX tag as a dual-license
  for some kernel files.

  These have been discussed thoroughly in public on the linux-spdx
  mailing list, and have the needed acks on them, as well as having been
  in linux-next with no reported issues for quite some time"

* tag 'spdx-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
  testing: use the copyleft-next-0.3.1 SPDX tag
  LICENSES: Add the copyleft-next-0.3.1 license
2022-12-20 08:53:16 -06:00
Linus Torvalds
3e0caea754 Devicetree updates for v6.2, part 2:
- Treewide dropping of redundant 'binding' or 'schema' from schema
   titles. This will be followed up with a automated check to catch
   these.
 
 - Re-sort vendor-prefies
 
 - Convert GPIO based watchdog to schema
 
 - Handle all the variations for clocks, resets, power domains in i.MX
   PCIe binding
 
 - Document missing 'power-domains' property in mxsfb
 
 - Fix error with path references in Tegra XUSB example
 
 - Honor CONFIG_CMDLINE* even without /chosen node
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Merge tag 'devicetree-for-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull more devicetree updates from Rob Herring:
 "This is mostly a treewide clean-up from Krzysztof. There's also a
  couple of fixes and things that fell thru the cracks.

  I must say this has been a nice merge window without bindings dumped
  in at the last minute introducing warnings.

  Summary:

   - Treewide dropping of redundant 'binding' or 'schema' from schema
     titles. This will be followed up with a automated check to catch
     these.

   - Re-sort vendor-prefies

   - Convert GPIO based watchdog to schema

   - Handle all the variations for clocks, resets, power domains in i.MX
     PCIe binding

   - Document missing 'power-domains' property in mxsfb

   - Fix error with path references in Tegra XUSB example

   - Honor CONFIG_CMDLINE* even without /chosen node"

* tag 'devicetree-for-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: drop redundant part of title (manual)
  dt-bindings: clock: drop redundant part of title
  dt-bindings: drop redundant part of title (beginning)
  dt-bindings: drop redundant part of title (end, part three)
  dt-bindings: drop redundant part of title (end, part two)
  dt-bindings: drop redundant part of title (end)
  dt-bindings: clock: st,stm32mp1-rcc: add proper title
  dt-bindings: memory-controllers: ti,gpmc-child: drop redundant part of title
  dt-bindings: drop redundant part of title of shared bindings
  dt-bindings: watchdog: gpio: Convert bindings to YAML
  dt-bindings: imx6q-pcie: Handle more resets on legacy platforms
  dt-bindings: imx6q-pcie: Handle various PD configurations
  dt-bindings: imx6q-pcie: Handle various clock configurations
  dt-bindings: hwmon: ntc-thermistor: drop Naveen Krishna Chatradhi from maintainers
  dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains property
  dt-bindings: vendor-prefixes: sort entries alphabetically
  dt-bindings: usb: tegra-xusb: Remove path references
  of: fdt: Honor CONFIG_CMDLINE* even without /chosen node
2022-12-20 08:48:24 -06:00
Linus Torvalds
35f79d0e2c parisc architecture fixes for kernel v6.2-rc1:
Fixes:
 - Fix potential null-ptr-deref in start_task()
 - Fix kgdb console on serial port
 - Add missing FORCE prerequisites in Makefile
 - Drop PMD_SHIFT from calculation in pgtable.h
 
 Enhancements:
 - Implement a wrapper to align madvise() MADV_* constants with other
   architectures
 - If machine supports running MPE/XL, show the MPE model string
 
 Cleanups:
 - Drop duplicate kgdb console code
 - Indenting fixes in setup_cmdline()
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Merge tag 'parisc-for-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc updates from Helge Deller:
 "There is one noteable patch, which allows the parisc kernel to use the
  same MADV_xxx constants as the other architectures going forward. With
  that change only alpha has one entry left (MADV_DONTNEED is 6 vs 4 on
  others) which is different. To prevent an ABI breakage, a wrapper is
  included which translates old MADV values to the new ones, so existing
  userspace isn't affected. Reason for that patch is, that some
  applications wrongly used the standard MADV_xxx values even on some
  non-x86 platforms and as such those programs failed to run correctly
  on parisc (examples are qemu-user, tor browser and boringssl).

  Then the kgdb console and the LED code received some fixes, and some
  0-day warnings are now gone. Finally, the very last compile warning
  which was visible during a kernel build is now fixed too (in the vDSO
  code).

  The majority of the patches are tagged for stable series and in
  summary this patchset is quite small and drops more code than it adds:

Fixes:
   - Fix potential null-ptr-deref in start_task()
   - Fix kgdb console on serial port
   - Add missing FORCE prerequisites in Makefile
   - Drop PMD_SHIFT from calculation in pgtable.h

  Enhancements:
   - Implement a wrapper to align madvise() MADV_* constants with other
     architectures
   - If machine supports running MPE/XL, show the MPE model string

  Cleanups:
   - Drop duplicate kgdb console code
   - Indenting fixes in setup_cmdline()"

* tag 'parisc-for-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Show MPE/iX model string at bootup
  parisc: Add missing FORCE prerequisites in Makefile
  parisc: Move pdc_result struct to firmware.c
  parisc: Drop locking in pdc console code
  parisc: Drop duplicate kgdb_pdc console
  parisc: Fix locking in pdc_iodc_print() firmware call
  parisc: Drop PMD_SHIFT from calculation in pgtable.h
  parisc: Align parisc MADV_XXX constants with all other architectures
  parisc: led: Fix potential null-ptr-deref in start_task()
  parisc: Fix inconsistent indenting in setup_cmdline()
2022-12-20 08:43:53 -06:00
Linus Torvalds
70b07bec95 asm-generic bits for 6.2
There are only three fairly simple patches. The #include
 change to linux/swab.h addresses a userspace build issue,
 and the change to the mmio tracing logic helps provide
 more useful traces.
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Merge tag 'asm-generic-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "There are only three fairly simple patches.

  The #include change to linux/swab.h addresses a userspace build issue,
  and the change to the mmio tracing logic helps provide more useful
  traces"

* tag 'asm-generic-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  uapi: Add missing _UAPI prefix to <asm-generic/types.h> include guard
  asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info
  include/uapi/linux/swab: Fix potentially missing __always_inline
2022-12-20 08:32:11 -06:00
Arnd Bergmann
b7dc753fe3 wifi: ath9k: use proper statements in conditionals
A previous cleanup patch accidentally broke some conditional
expressions by replacing the safe "do {} while (0)" constructs
with empty macros. gcc points this out when extra warnings
are enabled:

drivers/net/wireless/ath/ath9k/hif_usb.c: In function 'ath9k_skb_queue_complete':
drivers/net/wireless/ath/ath9k/hif_usb.c:251:57: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body]
  251 |                         TX_STAT_INC(hif_dev, skb_failed);

Make both sets of macros proper expressions again.

Fixes: d7fc76039b ("ath9k: htc: clean up statistics macros")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221215165553.1950307-1-arnd@kernel.org
2022-12-20 15:02:37 +02:00
Arnd Bergmann
37fc9ad161 wifi: mt76: mt7996: select CONFIG_RELAY
Without CONFIG_RELAY, the driver fails to link:

ERROR: modpost: "relay_flush" [drivers/net/wireless/mediatek/mt76/mt7996/mt7996e.ko] undefined!
ERROR: modpost: "relay_switch_subbuf" [drivers/net/wireless/mediatek/mt76/mt7996/mt7996e.ko] undefined!
ERROR: modpost: "relay_open" [drivers/net/wireless/mediatek/mt76/mt7996/mt7996e.ko] undefined!
ERROR: modpost: "relay_reset" [drivers/net/wireless/mediatek/mt76/mt7996/mt7996e.ko] undefined!
ERROR: modpost: "relay_file_operations" [drivers/net/wireless/mediatek/mt76/mt7996/mt7996e.ko] undefined!

The same change was done in mt7915 for the corresponding copy of the code.

Fixes: 98686cd216 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
See-also: 988845c936 ("mt76: mt7915: add support for passing chip/firmware debug data to user space")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221215163133.4152299-1-arnd@kernel.org
2022-12-20 15:01:06 +02:00
Johannes Berg
1c4c0b28b5 wifi: iwlwifi: fw: skip PPAG for JF
For JF RFs we don't support PPAG, but many firmware
images lie about it. Always skip support for JF to
avoid firmware errors when sending the command.

Reported-and-tested-by: Íñigo Huguet <ihuguet@redhat.com>
Link: https://lore.kernel.org/linux-wireless/CACT4oufQsqHGp6bah2c4+jPn2wG1oZqY=UKa_TmPx=F6Lxng8Q@mail.gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221213225723.2a43415d8990.I9ac210740a45b41f1b2e15274e1daf4284f2808a@changeid
2022-12-20 15:00:31 +02:00
Jason A. Donenfeld
3c202d14a9 prandom: remove prandom_u32_max()
Convert the final two users of prandom_u32_max() that slipped in during
6.2-rc1 to use get_random_u32_below().

Then, with no more users left, we can finally remove the deprecated
function.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-12-20 03:13:45 +01:00
Johan Hovold
41a15855c1 efi: random: fix NULL-deref when refreshing seed
Do not try to refresh the RNG seed in case the firmware does not support
setting variables.

This is specifically needed to prevent a NULL-pointer dereference on the
Lenovo X13s with some firmware revisions, or more generally, whenever
the runtime services have been disabled (e.g. efi=noruntime or with
PREEMPT_RT).

Fixes: e7b813b32a ("efi: random: refresh non-volatile random seed when RNG is initialized")
Reported-by: Steev Klimaszewski <steev@kali.org>
Reported-by: Bjorn Andersson <andersson@kernel.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Tested-by: Andrew Halaney <ahalaney@redhat.com> # sc8280xp-lenovo-thinkpad-x13s
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-12-20 03:13:45 +01:00
Jason A. Donenfeld
6bb20c152b random: do not include <asm/archrandom.h> from random.h
The <asm/archrandom.h> header is a random.c private detail, not
something to be called by other code. As such, don't make it
automatically available by way of random.h.

Cc: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-12-20 03:13:45 +01:00
Jakub Kicinski
4be84df38a linux-can-fixes-for-6.2-20221219
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Merge tag 'linux-can-fixes-for-6.2-20221219' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2022-12-19

The first patch is by Vincent Mailhol and adds the etas_es58x
devlink documentation to the index.

Haibo Chen's patch for the flexcan driver fixes a unbalanced
pm_runtime_enable warning.

The last patch is by me, targets the kvaser_usb driver and fixes
an error occurring with gcc-13.

* tag 'linux-can-fixes-for-6.2-20221219' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  can: kvaser_usb: hydra: help gcc-13 to figure out cmd_len
  can: flexcan: avoid unbalanced pm_runtime_enable warning
  Documentation: devlink: add missing toc entry for etas_es58x devlink doc
====================

Link: https://lore.kernel.org/r/20221219155210.1143439-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-19 17:47:59 -08:00
Jakub Kicinski
918fb1aaa2 Merge branch 'stop-corrupting-socket-s-task_frag'
Benjamin Coddington says:

====================
Stop corrupting socket's task_frag

The networking code uses flags in sk_allocation to determine if it can use
current->task_frag, however in-kernel users of sockets may stop setting
sk_allocation when they convert to the preferred memalloc_nofs_save/restore,
as SUNRPC has done in commit a1231fda7e ("SUNRPC: Set memalloc_nofs_save()
on all rpciod/xprtiod jobs").

This will cause corruption in current->task_frag when recursing into the
network layer for those subsystems during page fault or reclaim.  The
corruption is difficult to diagnose because stack traces may not contain the
offending subsystem at all.  The corruption is unlikely to show up in
testing because it requires memory pressure, and so subsystems that
convert to memalloc_nofs_save/restore are likely to continue to run into
this issue.

Previous reports and proposed fixes:
https://lore.kernel.org/netdev/96a18bd00cbc6cb554603cc0d6ef1c551965b078.1663762494.git.gnault@redhat.com/
https://lore.kernel.org/netdev/b4d8cb09c913d3e34f853736f3f5628abfd7f4b6.1656699567.git.gnault@redhat.com/
https://lore.kernel.org/linux-nfs/de6d99321d1dcaa2ad456b92b3680aa77c07a747.1665401788.git.gnault@redhat.com/

Guilluame Nault has done all of the hard work tracking this problem down and
finding the best fix for this issue.  I'm just taking a turn posting another
fix.
====================

Link: https://lore.kernel.org/r/cover.1671194454.git.bcodding@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-19 17:28:52 -08:00
Benjamin Coddington
08f65892c5 net: simplify sk_page_frag
Now that in-kernel socket users that may recurse during reclaim have benn
converted to sk_use_task_frag = false, we can have sk_page_frag() simply
check that value.

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-19 17:28:50 -08:00
Benjamin Coddington
98123866fc Treewide: Stop corrupting socket's task_frag
Since moving to memalloc_nofs_save/restore, SUNRPC has stopped setting the
GFP_NOIO flag on sk_allocation which the networking system uses to decide
when it is safe to use current->task_frag.  The results of this are
unexpected corruption in task_frag when SUNRPC is involved in memory
reclaim.

The corruption can be seen in crashes, but the root cause is often
difficult to ascertain as a crashing machine's stack trace will have no
evidence of being near NFS or SUNRPC code.  I believe this problem to
be much more pervasive than reports to the community may indicate.

Fix this by having kernel users of sockets that may corrupt task_frag due
to reclaim set sk_use_task_frag = false.  Preemptively correcting this
situation for users that still set sk_allocation allows them to convert to
memalloc_nofs_save/restore without the same unexpected corruptions that are
sure to follow, unlikely to show up in testing, and difficult to bisect.

CC: Philipp Reisner <philipp.reisner@linbit.com>
CC: Lars Ellenberg <lars.ellenberg@linbit.com>
CC: "Christoph Böhmwalder" <christoph.boehmwalder@linbit.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Josef Bacik <josef@toxicpanda.com>
CC: Keith Busch <kbusch@kernel.org>
CC: Christoph Hellwig <hch@lst.de>
CC: Sagi Grimberg <sagi@grimberg.me>
CC: Lee Duncan <lduncan@suse.com>
CC: Chris Leech <cleech@redhat.com>
CC: Mike Christie <michael.christie@oracle.com>
CC: "James E.J. Bottomley" <jejb@linux.ibm.com>
CC: "Martin K. Petersen" <martin.petersen@oracle.com>
CC: Valentina Manea <valentina.manea.m@gmail.com>
CC: Shuah Khan <shuah@kernel.org>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: David Howells <dhowells@redhat.com>
CC: Marc Dionne <marc.dionne@auristor.com>
CC: Steve French <sfrench@samba.org>
CC: Christine Caulfield <ccaulfie@redhat.com>
CC: David Teigland <teigland@redhat.com>
CC: Mark Fasheh <mark@fasheh.com>
CC: Joel Becker <jlbec@evilplan.org>
CC: Joseph Qi <joseph.qi@linux.alibaba.com>
CC: Eric Van Hensbergen <ericvh@gmail.com>
CC: Latchesar Ionkov <lucho@ionkov.net>
CC: Dominique Martinet <asmadeus@codewreck.org>
CC: Ilya Dryomov <idryomov@gmail.com>
CC: Xiubo Li <xiubli@redhat.com>
CC: Chuck Lever <chuck.lever@oracle.com>
CC: Jeff Layton <jlayton@kernel.org>
CC: Trond Myklebust <trond.myklebust@hammerspace.com>
CC: Anna Schumaker <anna@kernel.org>
CC: Steffen Klassert <steffen.klassert@secunet.com>
CC: Herbert Xu <herbert@gondor.apana.org.au>

Suggested-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-19 17:28:49 -08:00
Guillaume Nault
fb87bd4751 net: Introduce sk_use_task_frag in struct sock.
Sockets that can be used while recursing into memory reclaim, like
those used by network block devices and file systems, mustn't use
current->task_frag: if the current process is already using it, then
the inner memory reclaim call would corrupt the task_frag structure.

To avoid this, sk_page_frag() uses ->sk_allocation to detect sockets
that mustn't use current->task_frag, assuming that those used during
memory reclaim had their allocation constraints reflected in
->sk_allocation.

This unfortunately doesn't cover all cases: in an attempt to remove all
usage of GFP_NOFS and GFP_NOIO, sunrpc stopped setting these flags in
->sk_allocation, and used memalloc_nofs critical sections instead.
This breaks the sk_page_frag() heuristic since the allocation
constraints are now stored in current->flags, which sk_page_frag()
can't read without risking triggering a cache miss and slowing down
TCP's fast path.

This patch creates a new field in struct sock, named sk_use_task_frag,
which sockets with memory reclaim constraints can set to false if they
can't safely use current->task_frag. In such cases, sk_page_frag() now
always returns the socket's page_frag (->sk_frag). The first user is
sunrpc, which needs to avoid using current->task_frag but can keep
->sk_allocation set to GFP_KERNEL otherwise.

Eventually, it might be possible to simplify sk_page_frag() by only
testing ->sk_use_task_frag and avoid relying on the ->sk_allocation
heuristic entirely (assuming other sockets will set ->sk_use_task_frag
according to their constraints in the future).

The new ->sk_use_task_frag field is placed in a hole in struct sock and
belongs to a cache line shared with ->sk_shutdown. Therefore it should
be hot and shouldn't have negative performance impacts on TCP's fast
path (sk_shutdown is tested just before the while() loop in
tcp_sendmsg_locked()).

Link: https://lore.kernel.org/netdev/b4d8cb09c913d3e34f853736f3f5628abfd7f4b6.1656699567.git.gnault@redhat.com/
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-19 17:28:49 -08:00
Matt Johnston
b389a902dd mctp: Remove device type check at unregister
The unregister check could be incorrectly triggered if a netdev
changes its type after register. That is possible for a tun device
using TUNSETLINK ioctl, resulting in mctp unregister failing
and the netdev unregister waiting forever.

This was encountered by https://github.com/openthread/openthread/issues/8523

Neither check at register or unregister is required. They were added in
an attempt to track down mctp_ptr being set unexpectedly, which should
not happen in normal operation.

Fixes: 7b1871af75 ("mctp: Warn if pointer is set for a wrong dev type")
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20221215054933.2403401-1-matt@codeconstruct.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-19 17:20:22 -08:00
Arun Ramadoss
62e027fb0e net: dsa: microchip: remove IRQF_TRIGGER_FALLING in request_threaded_irq
KSZ swithes used interrupts for detecting the phy link up and down.
During registering the interrupt handler, it used IRQF_TRIGGER_FALLING
flag. But this flag has to be retrieved from device tree instead of hard
coding in the driver, so removing the flag.

Fixes: ff319a6448 ("net: dsa: microchip: move interrupt handling logic from lan937x to ksz_common")
Reported-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Link: https://lore.kernel.org/r/20221213101440.24667-1-arun.ramadoss@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-19 17:18:48 -08:00
Linus Torvalds
850f7a5cab ARM: SoC fixes for 6.2
These are a couple of build fixes from randconfig testing,
 plus a set of Mediatek SoC specific fixes, all trivial.
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Merge tag 'soc-fixes-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "These are a couple of build fixes from randconfig testing, plus a set
  of Mediatek SoC specific fixes, all trivial"

* tag 'soc-fixes-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  soc: tegra: fix CPU_BIG_ENDIAN dependencies
  ARM: disallow pre-ARMv5 builds with ld.lld
  ARM: pxa: fix building with clang
  MAINTAINERS: add related dts to IXP4xx
  ARM: dts: spear: drop 0x from unit address
  arm64: dts: mt8183: Fix Mali GPU clock
  arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
  soc: mediatek: pm-domains: Fix the power glitch issue
2022-12-19 16:07:59 -06:00
Linus Torvalds
6feb57c2fd Kbuild updates for v6.2
- Support zstd-compressed debug info
 
  - Allow W=1 builds to detect objects shared among multiple modules
 
  - Add srcrpm-pkg target to generate a source RPM package
 
  - Make the -s option detection work for future GNU Make versions
 
  - Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y
 
  - Allow W=1 builds to detect -Wundef warnings in any preprocessed files
 
  - Raise the minimum supported version of binutils to 2.25
 
  - Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used
 
  - Use $(file ...) to read a file if GNU Make >= 4.2 is used
 
  - Print error if GNU Make older than 3.82 is used
 
  - Allow modpost to detect section mismatches with Clang LTO
 
  - Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y
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Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Support zstd-compressed debug info

 - Allow W=1 builds to detect objects shared among multiple modules

 - Add srcrpm-pkg target to generate a source RPM package

 - Make the -s option detection work for future GNU Make versions

 - Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y

 - Allow W=1 builds to detect -Wundef warnings in any preprocessed files

 - Raise the minimum supported version of binutils to 2.25

 - Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used

 - Use $(file ...) to read a file if GNU Make >= 4.2 is used

 - Print error if GNU Make older than 3.82 is used

 - Allow modpost to detect section mismatches with Clang LTO

 - Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y

* tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits)
  buildtar: fix tarballs with EFI_ZBOOT enabled
  modpost: Include '.text.*' in TEXT_SECTIONS
  padata: Mark padata_work_init() as __ref
  kbuild: ensure Make >= 3.82 is used
  kbuild: refactor the prerequisites of the modpost rule
  kbuild: change module.order to list *.o instead of *.ko
  kbuild: use .NOTINTERMEDIATE for future GNU Make versions
  kconfig: refactor Makefile to reduce process forks
  kbuild: add read-file macro
  kbuild: do not sort after reading modules.order
  kbuild: add test-{ge,gt,le,lt} macros
  Documentation: raise minimum supported version of binutils to 2.25
  kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds
  kbuild: move -Werror from KBUILD_CFLAGS to KBUILD_CPPFLAGS
  kbuild: Port silent mode detection to future gnu make.
  init/version.c: remove #include <generated/utsrelease.h>
  firmware_loader: remove #include <generated/utsrelease.h>
  modpost: Mark uuid_le type to be suitable only for MEI
  kbuild: add ability to make source rpm buildable using koji
  kbuild: warn objects shared among multiple modules
  ...
2022-12-19 12:33:32 -06:00
Linus Torvalds
158738ea75 Update to zstd-1.5.2
The major goal of this PR is to update the kernel to upstream zstd v1.5.2 [0].
 Specifically to the tag v1.5.2-kernel [1] which includes several cherrypicked
 fixes for the kernel on top of v1.5.2.
 
 Excepting the MAINTAINERS change, all the changes in this PR can be generated by:
 
 ```
 git clone https://github.com/facebook/zstd
 cd zstd/contrib/linux-kernel
 git checkout v1.5.2-kernel
 LINUX=/path/to/linux/repo make import
 ```
 
 These changes have been baking in linux-next since 2022/10/24 when I put up
 my patchset [2]. Notably the first commit is a small refactor of the only zstd
 commit since the last update [3] to fit the upstream import scheme.
 
 Additionally, this PR includes several minor typo fixes, which have all been
 fixed upstream so they are maintained on the next import.
 
 [0] https://github.com/facebook/zstd/releases/tag/v1.5.2
 [1] https://github.com/facebook/zstd/tree/v1.5.2-kernel
 [2] https://lore.kernel.org/lkml/20221024202606.404049-1-nickrterrell@gmail.com/
 [3] 637a642f5c
 
 Signed-off-by: Nick Terrell <terrelln@fb.com>
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Merge tag 'zstd-linus-v6.2' of https://github.com/terrelln/linux

Pull zstd updates from Nick Terrell:
 "Update the kernel to upstream zstd v1.5.2 [0]. Specifically to the tag
  v1.5.2-kernel [1] which includes several cherrypicked fixes for the
  kernel on top of v1.5.2.

  Excepting the MAINTAINERS change, all the changes in this can be
  generated by:

    git clone https://github.com/facebook/zstd
    cd zstd/contrib/linux-kernel
    git checkout v1.5.2-kernel
    LINUX=/path/to/linux/repo make import

  Additionally, this includes several minor typo fixes, which have all
  been fixed upstream so they are maintained on the next import"

Link: https://github.com/facebook/zstd/releases/tag/v1.5.2 [0]
Link: https://github.com/facebook/zstd/tree/v1.5.2-kernel [1]
Link: https://lore.kernel.org/lkml/20221024202606.404049-1-nickrterrell@gmail.com/
Link: 637a642f5c

* tag 'zstd-linus-v6.2' of https://github.com/terrelln/linux:
  zstd: import usptream v1.5.2
  zstd: Move zstd-common module exports to zstd_common_module.c
  lib: zstd: Fix comment typo
  lib: zstd: fix repeated words in comments
  MAINTAINERS: git://github -> https://github.com for terrelln
  lib: zstd: clean up double word in comment.
2022-12-19 12:26:03 -06:00
Arnd Bergmann
6f85602d5f PM domains: enable isolation before resetting power
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Merge tag 'v6.1-soc-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/fixes

PM domains: enable isolation before resetting power

* tag 'v6.1-soc-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  soc: mediatek: pm-domains: Fix the power glitch issue

Link: https://lore.kernel.org/r/29c8b913-53cf-096f-fe44-832ceaeac116@suse.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-19 16:47:40 +01:00
Arnd Bergmann
b9cb6be06b MT8183: fix phandle for GPU clock
MT8195 demo: fix size of secmon reserved memory area
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Merge tag 'v6.1-dts64-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/fixes

MT8183: fix phandle for GPU clock
MT8195 demo: fix size of secmon reserved memory area

* tag 'v6.1-dts64-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  arm64: dts: mt8183: Fix Mali GPU clock
  arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon

Link: https://lore.kernel.org/r/af4c45ce-a150-438f-dab4-e47b120c32c4@suse.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-19 16:47:18 +01:00
Arnd Bergmann
ba4b4d0293
soc: tegra: fix CPU_BIG_ENDIAN dependencies
My previous patch to prevent BPMP from being enabled on big
endian kernels caused a build regression:

WARNING: unmet direct dependencies detected for TEGRA_BPMP
  Depends on [n]: ARCH_TEGRA [=y] && TEGRA_HSP_MBOX [=y] && TEGRA_IVC [=y] && !CPU_BIG_ENDIAN [=y]
  Selected by [y]:
  - ARCH_TEGRA_186_SOC [=y] && ARCH_TEGRA [=y] && ARM64 [=y]
  - ARCH_TEGRA_194_SOC [=y] && ARCH_TEGRA [=y] && ARM64 [=y]
  - ARCH_TEGRA_234_SOC [=y] && ARCH_TEGRA [=y] && ARM64 [=y]

Add even more such dependencies for the SoC types that use
the BPMP driver.

Fixes: 4ddb1bf1a8 ("tegra: mark BPMP driver as little-endian only")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20221215165336.1781080-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-19 16:47:01 +01:00
Arnd Bergmann
6a7ee50f8f
ARM: disallow pre-ARMv5 builds with ld.lld
lld cannot build for ARMv4/v4T targets because it inserts 'blx' instructions
that are unsupported there:

  ld.lld: warning: lld uses blx instruction, no object with architecture supporting feature detected

Add a Kconfig time dependency to prevent those targets from being
selected in randconfig builds.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://github.com/llvm/llvm-project/issues/50764
Link: https://github.com/ClangBuiltLinux/linux/issues/964
Link: https://lore.kernel.org/r/20221215162635.3750763-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-19 16:46:50 +01:00
Arnd Bergmann
4b88615950
ARM: pxa: fix building with clang
The integrated assembler in clang does not understand the xscale
specific mra/mar instructions:

arch/arm/mach-pxa/pxa27x.c:136:15: error: unsupported architectural extension: xscale
        asm volatile(".arch_extension xscale\n\t"
arch/arm/mach-pxa/pxa27x.c:136:40: error: invalid instruction, did you mean: mcr, mla, mrc, mrs, msr?
        mra r2, r3, acc0

Since these are coprocessor features, the same can be expressed using
mrrc/mcrr, so use that for builds with IAS.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20221215162529.3659187-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-19 16:46:32 +01:00
Corentin Labbe
4c03c4188c
MAINTAINERS: add related dts to IXP4xx
get_maintainer.pl currently give no maintainer on all IXP4xx DTS files.
Add them to the set of files handled by IXP4xx maintainers.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20221005105734.3513581-1-clabbe@baylibre.com
Link: https://lore.kernel.org/r/20221214204223.177807-1-linus.walleij@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-19 16:46:21 +01:00
Krzysztof Kozlowski
2b76cfe190
ARM: dts: spear: drop 0x from unit address
By coding style, unit address should not start with 0x.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20221210113347.63939-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-19 16:45:45 +01:00
Linus Torvalds
aeba12b26c nfsd-6.2 supplement:
- Address numerous reports of refcount underflows in NFSD's filecache
 - Address a UAF in callback setup error handling
 - Address a UAF during server-to-server copy
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Merge tag 'nfsd-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull more nfsd updates from Chuck Lever:
 "This contains a number of crasher fixes that were not ready for the
  initial pull request last week.

  In particular, Jeff's patch attempts to address reference count
  underflows in NFSD's filecache, which have been very difficult to
  track down because there is no reliable reproducer.

  Common failure modes:
      https://bugzilla.kernel.org/show_bug.cgi?id=216691#c11
      https://bugzilla.kernel.org/show_bug.cgi?id=216674#c6
      https://bugzilla.redhat.com/show_bug.cgi?id=2138605

  The race windows were found by inspection and the clean-ups appear
  sensible and pass regression testing, so we include them here in the
  hope that they address the problem. However we remain vigilant because
  we don't have 100% certainty yet that the problem is fully addressed.

  Summary:

   - Address numerous reports of refcount underflows in NFSD's filecache

   - Address a UAF in callback setup error handling

   - Address a UAF during server-to-server copy"

* tag 'nfsd-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  NFSD: fix use-after-free in __nfs42_ssc_open()
  nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure
  nfsd: rework refcounting in filecache
2022-12-19 09:10:33 -06:00
Helge Deller
4934fbfb3f parisc: Show MPE/iX model string at bootup
Some (mostly 64-bit machines) machines allow to run MPE/iX and report the MPE
model string via firmware call. Enhance the pdc_model_sysmodel() function to
report that model string.
Note that some 32-bit machines like the B160L wrongly report success for the
firmware call, so include a check to prevent showing wrong info.

Signed-off-by: Helge Deller <deller@gmx.de>
2022-12-19 16:08:52 +01:00
Marc Kleine-Budde
f006229135 can: kvaser_usb: hydra: help gcc-13 to figure out cmd_len
Debian's gcc-13 [1] throws the following error in
kvaser_usb_hydra_cmd_size():

[1] gcc version 13.0.0 20221214 (experimental) [master r13-4693-g512098a3316] (Debian 13-20221214-1)

| drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c:502:65: error:
| array subscript ‘struct kvaser_cmd_ext[0]’ is partly outside array
| bounds of ‘unsigned char[32]’ [-Werror=array-bounds=]
|   502 |                 ret = le16_to_cpu(((struct kvaser_cmd_ext *)cmd)->len);

kvaser_usb_hydra_cmd_size() returns the size of given command. It
depends on the command number (cmd->header.cmd_no). For extended
commands (cmd->header.cmd_no == CMD_EXTENDED) the above shown code is
executed.

Help gcc to recognize that this code path is not taken in all cases,
by calling kvaser_usb_hydra_cmd_size() directly after assigning the
command number.

Fixes: aec5fb2268 ("can: kvaser_usb: Add support for Kvaser USB hydra family")
Cc: Jimmy Assarsson <extja@kvaser.com>
Cc: Anssi Hannula <anssi.hannula@bitwise.fi>
Link: https://lore.kernel.org/all/20221219110104.1073881-1-mkl@pengutronix.de
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-12-19 16:08:27 +01:00
Haibo Chen
3bc2afcba8 can: flexcan: avoid unbalanced pm_runtime_enable warning
When do suspend/resume, meet the following warning message:
[   30.028336] flexcan 425b0000.can: Unbalanced pm_runtime_enable!

Balance the pm_runtime_force_suspend() and pm_runtime_force_resume().

Fixes: 8cb53b485f ("can: flexcan: add auto stop mode for IMX93 to support wakeup")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/all/20221213094351.3023858-1-haibo.chen@nxp.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-12-19 16:08:27 +01:00
Vincent Mailhol
115dd54690 Documentation: devlink: add missing toc entry for etas_es58x devlink doc
toc entry is missing for etas_es58x devlink doc and triggers this warning:

  Documentation/networking/devlink/etas_es58x.rst: WARNING: document isn't included in any toctree

Add the missing toc entry.

Fixes: 9f63f96aac ("Documentation: devlink: add devlink documentation for the etas_es58x driver")
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221213051136.721887-1-mailhol.vincent@wanadoo.fr
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-12-19 16:08:27 +01:00
Linus Torvalds
acd04af6e4 RTC for 6.2
Removed driver:
  - davinci
 
 Drivers:
  - convert i2c drivers to .probe_new
  - fix spelling mistakes and duplicated words in comments
  - cmos: rework wake setup and ACPI event handling
  - cros-ec: Limit RTC alarm range to fix alarmtimer
  - ds1347: fix century register handling
  - efi: wakeup support
  - isl12022: temperature sensor support
  - pcf85063: fix read_alarm and clkout
  - pcf8523: use stop bit to detect invalid time
  - pcf8563: use RTC_FEATURE_ALARM
  - snvs: be more flexible on LPSRT reads
  - many static checker fixes
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Merge tag 'rtc-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Most of the changes are a rework of the cmos driver by Rafael and
  fixes for issues found using static checkers. The removal of a driver
  leads to a reduction of the number of LOC of the subsystem.

  Removed driver:
   - davinci

  Updates:
   - convert i2c drivers to .probe_new
   - fix spelling mistakes and duplicated words in comments
   - cmos: rework wake setup and ACPI event handling
   - cros-ec: Limit RTC alarm range to fix alarmtimer
   - ds1347: fix century register handling
   - efi: wakeup support
   - isl12022: temperature sensor support
   - pcf85063: fix read_alarm and clkout
   - pcf8523: use stop bit to detect invalid time
   - pcf8563: use RTC_FEATURE_ALARM
   - snvs: be more flexible on LPSRT reads
   - many static checker fixes"

* tag 'rtc-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (48 commits)
  rtc: ds1742: use devm_platform_get_and_ioremap_resource()
  rtc: mxc_v2: Add missing clk_disable_unprepare()
  rtc: rs5c313: correct some spelling mistakes
  rtc: at91rm9200: Fix syntax errors in comments
  rtc: remove duplicated words in comments
  rtc: rv3028: Use IRQ flags obtained from device tree if available
  rtc: ds1307: use sysfs_emit() to instead of scnprintf()
  rtc: isl12026: drop obsolete dependency on COMPILE_TEST
  dt-bindings: rtc: m41t80: Convert text schema to YAML one
  rtc: pcf85063: fix pcf85063_clkout_control
  rtc: rx6110: fix warning with !OF
  rtc: rk808: reduce 'struct rk808' usage
  rtc: msc313: Fix function prototype mismatch in msc313_rtc_probe()
  dt-bindings: rtc: convert rtc-meson.txt to dt-schema
  rtc: pic32: Move devm_rtc_allocate_device earlier in pic32_rtc_probe()
  rtc: st-lpc: Add missing clk_disable_unprepare in st_rtc_probe()
  rtc: pcf85063: Fix reading alarm
  rtc: pcf8523: fix for stop bit
  rtc: efi: Add wakeup support
  rtc: pcf8563: clear RTC_FEATURE_ALARM if no irq
  ...
2022-12-19 09:00:00 -06:00
Linus Torvalds
9322af3e6a dmaengine updates for v6.2
New support:
  - Qualcomm SDM670, SM6115 and SM6375 GPI controller support
  - Ingenic JZ4755 dmaengine support
  - Removal of iop-adma driver
 
  Updates:
  - Tegra support for dma-channel-mask
  - at_hdmac cleanup and virt-chan support for this driver
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Merge tag 'dmaengine-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine updates from Vinod Koul:
 "New support:

    - Qualcomm SDM670, SM6115 and SM6375 GPI controller support

    - Ingenic JZ4755 dmaengine support

    - Removal of iop-adma driver

  Updates:

   - Tegra support for dma-channel-mask

   - at_hdmac cleanup and virt-chan support for this driver"

* tag 'dmaengine-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (46 commits)
  dmaengine: Revert "dmaengine: remove s3c24xx driver"
  dmaengine: tegra: Add support for dma-channel-mask
  dt-bindings: dmaengine: Add dma-channel-mask to Tegra GPCDMA
  dmaengine: idxd: Remove linux/msi.h include
  dt-bindings: dmaengine: qcom: gpi: add compatible for SM6375
  dmaengine: idxd: Fix crc_val field for completion record
  dmaengine: at_hdmac: Convert driver to use virt-dma
  dmaengine: at_hdmac: Remove unused member of at_dma_chan
  dmaengine: at_hdmac: Rename "chan_common" to "dma_chan"
  dmaengine: at_hdmac: Rename "dma_common" to "dma_device"
  dmaengine: at_hdmac: Use bitfield access macros
  dmaengine: at_hdmac: Keep register definitions and structures private to at_hdmac.c
  dmaengine: at_hdmac: Set include entries in alphabetic order
  dmaengine: at_hdmac: Use pm_ptr()
  dmaengine: at_hdmac: Use devm_clk_get()
  dmaengine: at_hdmac: Use devm_platform_ioremap_resource
  dmaengine: at_hdmac: Use devm_kzalloc() and struct_size()
  dmaengine: at_hdmac: Introduce atc_get_llis_residue()
  dmaengine: at_hdmac: s/atc_get_bytes_left/atc_get_residue
  dmaengine: at_hdmac: Pass residue by address to avoid unnecessary implicit casts
  ...
2022-12-19 08:54:17 -06:00