Commit Graph

148881 Commits

Author SHA1 Message Date
Chuck Lever
39d0e38dcc net/handshake: Add helpers for parsing incoming TLS Alerts
Kernel TLS consumers can replace common TLS Alert parsing code with
these helpers.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047942074.5241.13791647439480672048.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-28 14:07:59 -07:00
Chuck Lever
35b1b538d4 net/handshake: Add API for sending TLS Closure alerts
This helper sends an alert only if a TLS session was established.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047936730.5241.618595693821012638.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-28 14:07:59 -07:00
Chuck Lever
0257427146 net/tls: Add TLS Alert definitions
I'm about to add support for kernel handshake API consumers to send
TLS Alerts, so introduce the needed protocol definitions in the new
header tls_prot.h.

This presages support for Closure alerts. Also, support for alerts
is a pre-requite for handling session re-keying, where one peer will
signal the need for a re-key by sending a TLS Alert.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047934064.5241.8377890858495063518.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-28 14:07:59 -07:00
Chuck Lever
6a7eccef47 net/tls: Move TLS protocol elements to a separate header
Kernel TLS consumers will need definitions of various parts of the
TLS protocol, but often do not need the function declarations and
other infrastructure provided in <net/tls.h>.

Break out existing standardized protocol elements into a separate
header, and make room for a few more elements in subsequent patches.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047931374.5241.7713175865185969309.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-28 14:07:59 -07:00
Linus Torvalds
269f4a4b85 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Avoid pKVM finalization if KVM initialization fails

   - Add missing BTI instructions in the hypervisor, fixing an early
     boot failure on BTI systems

   - Handle MMU notifiers correctly for non hugepage-aligned memslots

   - Work around a bug in the architecture where hypervisor timer
     controls have UNKNOWN behavior under nested virt

   - Disable preemption in kvm_arch_hardware_enable(), fixing a kernel
     BUG in cpu hotplug resulting from per-CPU accessor sanity checking

   - Make WFI emulation on GICv4 systems robust w.r.t. preemption,
     consistently requesting a doorbell interrupt on vcpu_put()

   - Uphold RES0 sysreg behavior when emulating older PMU versions

   - Avoid macro expansion when initializing PMU register names,
     ensuring the tracepoints pretty-print the sysreg

  s390:

   - Two fixes for asynchronous destroy

  x86 fixes will come early next week"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: s390: pv: fix index value of replaced ASCE
  KVM: s390: pv: simplify shutdown and fix race
  KVM: arm64: Fix the name of sys_reg_desc related to PMU
  KVM: arm64: Correctly handle RES0 bits PMEVTYPER<n>_EL0.evtCount
  KVM: arm64: vgic-v4: Make the doorbell request robust w.r.t preemption
  KVM: arm64: Add missing BTI instructions
  KVM: arm64: Correctly handle page aging notifiers for unaligned memslot
  KVM: arm64: Disable preemption in kvm_arch_hardware_enable()
  KVM: arm64: Handle kvm_arm_init failure correctly in finalize_pkvm
  KVM: arm64: timers: Use CNTHCTL_EL2 when setting non-CNTKCTL_EL1 bits
2023-07-23 10:44:38 -07:00
Linus Torvalds
15b593ba68 Merge tag 'ext4_for_linus-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
 "Bug and regression fixes for 6.5-rc3 for ext4's mballoc and jbd2's
  checkpoint code"

* tag 'ext4_for_linus-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix rbtree traversal bug in ext4_mb_use_preallocated
  ext4: fix off by one issue in ext4_mb_choose_next_group_best_avail()
  ext4: correct inline offset when handling xattrs in inode body
  jbd2: remove __journal_try_to_free_buffer()
  jbd2: fix a race when checking checkpoint buffer busy
  jbd2: Fix wrongly judgement for buffer head removing while doing checkpoint
  jbd2: remove journal_clean_one_cp_list()
  jbd2: remove t_checkpoint_io_list
  jbd2: recheck chechpointing non-dirty buffer
2023-07-23 10:21:49 -07:00
Paolo Bonzini
675a15f4db Merge tag 'kvmarm-fixes-6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.5, part #1

 - Avoid pKVM finalization if KVM initialization fails

 - Add missing BTI instructions in the hypervisor, fixing an early boot
   failure on BTI systems

 - Handle MMU notifiers correctly for non hugepage-aligned memslots

 - Work around a bug in the architecture where hypervisor timer controls
   have UNKNOWN behavior under nested virt.

 - Disable preemption in kvm_arch_hardware_enable(), fixing a kernel BUG
   in cpu hotplug resulting from per-CPU accessor sanity checking.

 - Make WFI emulation on GICv4 systems robust w.r.t. preemption,
   consistently requesting a doorbell interrupt on vcpu_put()

 - Uphold RES0 sysreg behavior when emulating older PMU versions

 - Avoid macro expansion when initializing PMU register names, ensuring
   the tracepoints pretty-print the sysreg.
2023-07-23 12:50:14 -04:00
Linus Torvalds
f036d67c02 Merge tag 'block-6.5-2023-07-21' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:

 - Fix for loop regressions (Mauricio)

 - Fix a potential stall with batched wakeups in sbitmap (David)

 - Fix for stall with recursive plug flushes (Ross)

 - Skip accounting of empty requests for blk-iocost (Chengming)

 - Remove a dead field in struct blk_mq_hw_ctx (Chengming)

* tag 'block-6.5-2023-07-21' of git://git.kernel.dk/linux:
  loop: do not enforce max_loop hard limit by (new) default
  loop: deprecate autoloading callback loop_probe()
  sbitmap: fix batching wakeup
  blk-iocost: skip empty flush bio in iocost
  blk-mq: delete dead struct blk_mq_hw_ctx->queued field
  blk-mq: Fix stall due to recursive flush plug
2023-07-22 11:05:15 -07:00
Linus Torvalds
57f1f9dd3a Merge tag 'net-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Including fixes from BPF, netfilter, bluetooth and CAN.

  Current release - regressions:

   - eth: r8169: multiple fixes for PCIe ASPM-related problems

   - vrf: fix RCU lockdep splat in output path

  Previous releases - regressions:

   - gso: fall back to SW segmenting with GSO_UDP_L4 dodgy bit set

   - dsa: mv88e6xxx: do a final check before timing out when polling

   - nf_tables: fix sleep in atomic in nft_chain_validate

  Previous releases - always broken:

   - sched: fix undoing tcf_bind_filter() in multiple classifiers

   - bpf, arm64: fix BTI type used for freplace attached functions

   - can: gs_usb: fix time stamp counter initialization

   - nft_set_pipapo: fix improper element removal (leading to UAF)

  Misc:

   - net: support STP on bridge in non-root netns, STP prevents packet
     loops so not supporting it results in freezing systems of
     unsuspecting users, and in turn very upset noises being made

   - fix kdoc warnings

   - annotate various bits of TCP state to prevent data races"

* tag 'net-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (95 commits)
  net: phy: prevent stale pointer dereference in phy_init()
  tcp: annotate data-races around fastopenq.max_qlen
  tcp: annotate data-races around icsk->icsk_user_timeout
  tcp: annotate data-races around tp->notsent_lowat
  tcp: annotate data-races around rskq_defer_accept
  tcp: annotate data-races around tp->linger2
  tcp: annotate data-races around icsk->icsk_syn_retries
  tcp: annotate data-races around tp->keepalive_probes
  tcp: annotate data-races around tp->keepalive_intvl
  tcp: annotate data-races around tp->keepalive_time
  tcp: annotate data-races around tp->tsoffset
  tcp: annotate data-races around tp->tcp_tx_delay
  Bluetooth: MGMT: Use correct address for memcpy()
  Bluetooth: btusb: Fix bluetooth on Intel Macbook 2014
  Bluetooth: SCO: fix sco_conn related locking and validity issues
  Bluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link
  Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
  Bluetooth: coredump: fix building with coredump disabled
  Bluetooth: ISO: fix iso_conn related locking and validity issues
  Bluetooth: hci_event: call disconnect callback before deleting conn
  ...
2023-07-20 14:46:39 -07:00
Jakub Kicinski
75d42b351f Merge tag 'for-net-2023-07-20' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Luiz Augusto von Dentz says:

====================
bluetooth pull request for net:

 - Fix building with coredump disabled
 - Fix use-after-free in hci_remove_adv_monitor
 - Use RCU for hci_conn_params and iterate safely in hci_sync
 - Fix locking issues on ISO and SCO
 - Fix bluetooth on Intel Macbook 2014

* tag 'for-net-2023-07-20' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
  Bluetooth: MGMT: Use correct address for memcpy()
  Bluetooth: btusb: Fix bluetooth on Intel Macbook 2014
  Bluetooth: SCO: fix sco_conn related locking and validity issues
  Bluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link
  Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
  Bluetooth: coredump: fix building with coredump disabled
  Bluetooth: ISO: fix iso_conn related locking and validity issues
  Bluetooth: hci_event: call disconnect callback before deleting conn
  Bluetooth: use RCU for hci_conn_params and iterate safely in hci_sync
====================

Link: https://lore.kernel.org/r/20230720190201.446469-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-20 12:57:55 -07:00
Eric Dumazet
70f360dd70 tcp: annotate data-races around fastopenq.max_qlen
This field can be read locklessly.

Fixes: 1536e2857b ("tcp: Add a TCP_FASTOPEN socket option to get a max backlog on its listner")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230719212857.3943972-12-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-20 12:34:18 -07:00
Eric Dumazet
1aeb87bc14 tcp: annotate data-races around tp->notsent_lowat
tp->notsent_lowat can be read locklessly from do_tcp_getsockopt()
and tcp_poll().

Fixes: c9bee3b7fd ("tcp: TCP_NOTSENT_LOWAT socket option")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230719212857.3943972-10-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-20 12:34:18 -07:00
Eric Dumazet
6e5e1de616 tcp: annotate data-races around tp->keepalive_probes
do_tcp_getsockopt() reads tp->keepalive_probes while another cpu
might change its value.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230719212857.3943972-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-20 12:34:18 -07:00
Eric Dumazet
5ecf9d4f52 tcp: annotate data-races around tp->keepalive_intvl
do_tcp_getsockopt() reads tp->keepalive_intvl while another cpu
might change its value.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230719212857.3943972-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-20 12:34:18 -07:00
Eric Dumazet
4164245c76 tcp: annotate data-races around tp->keepalive_time
do_tcp_getsockopt() reads tp->keepalive_time while another cpu
might change its value.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230719212857.3943972-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-20 12:34:18 -07:00
Chengming Zhou
3641c90c4e blk-mq: delete dead struct blk_mq_hw_ctx->queued field
This counter is not used anywhere, so delete it.

Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230720095512.1403123-1-chengming.zhou@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-07-20 13:29:25 -06:00
Arnd Bergmann
6910e2eb39 Bluetooth: coredump: fix building with coredump disabled
The btmtk driver uses an IS_ENABLED() check to conditionally compile
the coredump support, but this fails to build because the hdev->dump
member is in an #ifdef:

drivers/bluetooth/btmtk.c: In function 'btmtk_process_coredump':
drivers/bluetooth/btmtk.c:386:30: error: 'struct hci_dev' has no member named 'dump'
  386 |   schedule_delayed_work(&hdev->dump.dump_timeout,
      |                              ^~

The struct member doesn't really make a huge difference in the total size,
so just remove the #ifdef around it to avoid adding similar checks
around each user.

Fixes: 872f8c253cb9e ("Bluetooth: btusb: mediatek: add MediaTek devcoredump support")
Fixes: 9695ef876f ("Bluetooth: Add support for hci devcoredump")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-07-20 11:25:24 -07:00
Pauli Virtanen
195ef75e19 Bluetooth: use RCU for hci_conn_params and iterate safely in hci_sync
hci_update_accept_list_sync iterates over hdev->pend_le_conns and
hdev->pend_le_reports, and waits for controller events in the loop body,
without holding hdev lock.

Meanwhile, these lists and the items may be modified e.g. by
le_scan_cleanup. This can invalidate the list cursor or any other item
in the list, resulting to invalid behavior (eg use-after-free).

Use RCU for the hci_conn_params action lists. Since the loop bodies in
hci_sync block and we cannot use RCU or hdev->lock for the whole loop,
copy list items first and then iterate on the copy. Only the flags field
is written from elsewhere, so READ_ONCE/WRITE_ONCE should guarantee we
read valid values.

Free params everywhere with hci_conn_params_free so the cleanup is
guaranteed to be done properly.

This fixes the following, which can be triggered e.g. by BlueZ new
mgmt-tester case "Add + Remove Device Nowait - Success", or by changing
hci_le_set_cig_params to always return false, and running iso-tester:

==================================================================
BUG: KASAN: slab-use-after-free in hci_update_passive_scan_sync (net/bluetooth/hci_sync.c:2536 net/bluetooth/hci_sync.c:2723 net/bluetooth/hci_sync.c:2841)
Read of size 8 at addr ffff888001265018 by task kworker/u3:0/32

Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-1.fc38 04/01/2014
Workqueue: hci0 hci_cmd_sync_work
Call Trace:
<TASK>
dump_stack_lvl (./arch/x86/include/asm/irqflags.h:134 lib/dump_stack.c:107)
print_report (mm/kasan/report.c:320 mm/kasan/report.c:430)
? __virt_addr_valid (./include/linux/mmzone.h:1915 ./include/linux/mmzone.h:2011 arch/x86/mm/physaddr.c:65)
? hci_update_passive_scan_sync (net/bluetooth/hci_sync.c:2536 net/bluetooth/hci_sync.c:2723 net/bluetooth/hci_sync.c:2841)
kasan_report (mm/kasan/report.c:538)
? hci_update_passive_scan_sync (net/bluetooth/hci_sync.c:2536 net/bluetooth/hci_sync.c:2723 net/bluetooth/hci_sync.c:2841)
hci_update_passive_scan_sync (net/bluetooth/hci_sync.c:2536 net/bluetooth/hci_sync.c:2723 net/bluetooth/hci_sync.c:2841)
? __pfx_hci_update_passive_scan_sync (net/bluetooth/hci_sync.c:2780)
? mutex_lock (kernel/locking/mutex.c:282)
? __pfx_mutex_lock (kernel/locking/mutex.c:282)
? __pfx_mutex_unlock (kernel/locking/mutex.c:538)
? __pfx_update_passive_scan_sync (net/bluetooth/hci_sync.c:2861)
hci_cmd_sync_work (net/bluetooth/hci_sync.c:306)
process_one_work (./arch/x86/include/asm/preempt.h:27 kernel/workqueue.c:2399)
worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2538)
? __pfx_worker_thread (kernel/workqueue.c:2480)
kthread (kernel/kthread.c:376)
? __pfx_kthread (kernel/kthread.c:331)
ret_from_fork (arch/x86/entry/entry_64.S:314)
</TASK>

Allocated by task 31:
kasan_save_stack (mm/kasan/common.c:46)
kasan_set_track (mm/kasan/common.c:52)
__kasan_kmalloc (mm/kasan/common.c:374 mm/kasan/common.c:383)
hci_conn_params_add (./include/linux/slab.h:580 ./include/linux/slab.h:720 net/bluetooth/hci_core.c:2277)
hci_connect_le_scan (net/bluetooth/hci_conn.c:1419 net/bluetooth/hci_conn.c:1589)
hci_connect_cis (net/bluetooth/hci_conn.c:2266)
iso_connect_cis (net/bluetooth/iso.c:390)
iso_sock_connect (net/bluetooth/iso.c:899)
__sys_connect (net/socket.c:2003 net/socket.c:2020)
__x64_sys_connect (net/socket.c:2027)
do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)

Freed by task 15:
kasan_save_stack (mm/kasan/common.c:46)
kasan_set_track (mm/kasan/common.c:52)
kasan_save_free_info (mm/kasan/generic.c:523)
__kasan_slab_free (mm/kasan/common.c:238 mm/kasan/common.c:200 mm/kasan/common.c:244)
__kmem_cache_free (mm/slub.c:1807 mm/slub.c:3787 mm/slub.c:3800)
hci_conn_params_del (net/bluetooth/hci_core.c:2323)
le_scan_cleanup (net/bluetooth/hci_conn.c:202)
process_one_work (./arch/x86/include/asm/preempt.h:27 kernel/workqueue.c:2399)
worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2538)
kthread (kernel/kthread.c:376)
ret_from_fork (arch/x86/entry/entry_64.S:314)
==================================================================

Fixes: e8907f7654 ("Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 3")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-07-20 11:25:24 -07:00
Kuniyuki Iwashima
97b1d320f4 llc: Check netns in llc_estab_match() and llc_listener_match().
We will remove this restriction in llc_rcv() in the following patch,
which means that the protocol handler must be aware of netns.

        if (!net_eq(dev_net(dev), &init_net))
                goto drop;

llc_rcv() fetches llc_type_handlers[llc_pdu_type(skb) - 1] and calls it
if not NULL.

If the PDU type is LLC_DEST_CONN, llc_conn_handler() is called to pass
skb to corresponding sockets.  Then, we must look up a proper socket in
the same netns with skb->dev.

llc_conn_handler() calls __llc_lookup() to look up a established or
litening socket by __llc_lookup_established() and llc_lookup_listener().

Both functions iterate on a list and call llc_estab_match() or
llc_listener_match() to check if the socket is the correct destination.
However, these functions do not check netns.

Also, bind() and connect() call llc_establish_connection(), which
finally calls __llc_lookup_established(), to check if there is a
conflicting socket.

Let's test netns in llc_estab_match() and llc_listener_match().

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-07-20 10:46:28 +02:00
Linus Torvalds
bfa3037d82 Merge tag 'fuse-update-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
 "Small but important fixes and a trivial cleanup"

* tag 'fuse-update-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: ioctl: translate ENOSYS in outarg
  fuse: revalidate: don't invalidate if interrupted
  fuse: Apply flags2 only when userspace set the FUSE_INIT_EXT
  fuse: remove duplicate check for nodeid
  fuse: add feature flag for expire-only
2023-07-19 11:00:27 -07:00
Linus Torvalds
f61a89ca11 Merge tag 'sched_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:

 - Remove a cgroup from under a polling process properly

 - Fix the idle sibling selection

* tag 'sched_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/psi: use kernfs polling functions for PSI trigger polling
  sched/fair: Use recent_used_cpu to test p->cpus_ptr
2023-07-16 13:22:08 -07:00
Linus Torvalds
6eede0686f Merge tag 'hardening-v6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:

 - Remove LTO-only suffixes from promoted global function symbols
   (Yonghong Song)

 - Remove unused .text..refcount section from vmlinux.lds.h (Petr Pavlu)

 - Add missing __always_inline to sparc __arch_xchg() (Arnd Bergmann)

 - Claim maintainership of string routines

* tag 'hardening-v6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  sparc: mark __arch_xchg() as __always_inline
  MAINTAINERS: Foolishly claim maintainership of string routines
  kallsyms: strip LTO-only suffixes from promoted global functions
  vmlinux.lds.h: Remove a reference to no longer used sections .text..refcount
2023-07-16 12:18:18 -07:00
Randy Dunlap
04be3c95da rsi: remove kernel-doc comment marker
Change an errant kernel-doc comment marker (/**) to a regular
comment to prevent a kernel-doc warning.

rsi_91x.h:3: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 * Copyright (c) 2017 Redpine Signals Inc.

Fixes: 4c10d56a76 ("rsi: add header file rsi_91x")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Cc: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Acked-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230714045127.18752-10-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:30 -07:00
Randy Dunlap
d1cca97454 pie: fix kernel-doc notation warning
Spell a struct member's name correctly to prevent a kernel-doc
warning.

pie.h:38: warning: Function parameter or member 'tupdate' not described in 'pie_params'

Fixes: b42a3d7c7c ("pie: improve comments and commenting style")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Leslie Monis <lesliemonis@gmail.com>
Cc: "Mohit P. Tahiliani" <tahiliani@nitk.edu.in>
Cc: Gautam Ramakrishnan <gautamramk@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Link: https://lore.kernel.org/r/20230714045127.18752-9-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:30 -07:00
Randy Dunlap
d1533d726a net: NSH: fix kernel-doc notation warning
Use the struct member's name and the correct format to prevent a
kernel-doc warning.

nsh.h:200: warning: Function parameter or member 'context' not described in 'nsh_md1_ctx'

Fixes: 1f0b7744c5 ("net: add NSH header structures and helpers")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiri Benc <jbenc@redhat.com>
Link: https://lore.kernel.org/r/20230714045127.18752-8-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:29 -07:00
Randy Dunlap
201a08830d net: llc: fix kernel-doc notation warnings
Use the corrent function parameter name or format to prevent
kernel-doc warnings.
Add 2 function parameter descriptions to prevent kernel-doc warnings.

llc_pdu.h:278: warning: Function parameter or member 'da' not described in 'llc_pdu_decode_da'
llc_pdu.h:278: warning: Excess function parameter 'sa' description in 'llc_pdu_decode_da'
llc_pdu.h:330: warning: Function parameter or member 'skb' not described in 'llc_pdu_init_as_test_cmd'
llc_pdu.h:379: warning: Function parameter or member 'svcs_supported' not described in 'llc_pdu_init_as_xid_cmd'
llc_pdu.h:379: warning: Function parameter or member 'rx_window' not described in 'llc_pdu_init_as_xid_cmd'

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230714045127.18752-7-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:29 -07:00
Randy Dunlap
d20909a068 inet: frags: eliminate kernel-doc warning
Modify the anonymous enum kernel-doc content so that it doesn't cause
a kernel-doc warning.

inet_frag.h:33: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

Fixes: 1ab1934ed8 ("inet: frags: enum the flag definitions and add descriptions")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20230714045127.18752-6-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:29 -07:00
Randy Dunlap
839f55c5eb devlink: fix kernel-doc notation warnings
Spell function or struct member names correctly.
Use ':' instead of '-' for struct member entries.
Mark one field as private in kernel-doc.
Add a few entries that were missing.
Fix a typo.

These changes prevent kernel-doc warnings:

devlink.h:252: warning: Function parameter or member 'field_id' not described in 'devlink_dpipe_match'
devlink.h:267: warning: Function parameter or member 'field_id' not described in 'devlink_dpipe_action'
devlink.h:310: warning: Function parameter or member 'match_values_count' not described in 'devlink_dpipe_entry'
devlink.h:355: warning: Function parameter or member 'list' not described in 'devlink_dpipe_table'
devlink.h:374: warning: Function parameter or member 'actions_dump' not described in 'devlink_dpipe_table_ops'
devlink.h:374: warning: Function parameter or member 'matches_dump' not described in 'devlink_dpipe_table_ops'
devlink.h:374: warning: Function parameter or member 'entries_dump' not described in 'devlink_dpipe_table_ops'
devlink.h:374: warning: Function parameter or member 'counters_set_update' not described in 'devlink_dpipe_table_ops'
devlink.h:374: warning: Function parameter or member 'size_get' not described in 'devlink_dpipe_table_ops'
devlink.h:384: warning: Function parameter or member 'headers' not described in 'devlink_dpipe_headers'
devlink.h:384: warning: Function parameter or member 'headers_count' not described in 'devlink_dpipe_headers'
devlink.h:398: warning: Function parameter or member 'unit' not described in 'devlink_resource_size_params'
devlink.h:487: warning: Function parameter or member 'id' not described in 'devlink_param'
devlink.h:645: warning: Function parameter or member 'overwrite_mask' not described in 'devlink_flash_update_params'

Fixes: 1555d204e7 ("devlink: Support for pipeline debug (dpipe)")
Fixes: d9f9b9a4d0 ("devlink: Add support for resource abstraction")
Fixes: eabaef1896 ("devlink: Add devlink_param register and unregister")
Fixes: 5d5b4128c4 ("devlink: introduce flash update overwrite mask")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Moshe Shemesh <moshe@mellanox.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230714045127.18752-5-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:29 -07:00
Randy Dunlap
cfe57122bb codel: fix kernel-doc notation warnings
Use '@' before the struct member names in kernel-doc notation
to prevent kernel-doc warnings.

codel.h:158: warning: Function parameter or member 'ecn_mark' not described in 'codel_stats'
codel.h:158: warning: Function parameter or member 'ce_mark' not described in 'codel_stats'

Fixes: 76e3cc126b ("codel: Controlled Delay AQM")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Dave Taht <dave.taht@bufferbloat.net>
Link: https://lore.kernel.org/r/20230714045127.18752-4-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:29 -07:00
Randy Dunlap
a63e40444e net: cfg802154: fix kernel-doc notation warnings
Add an enum heading to the kernel-doc comments to prevent
kernel-doc warnings.

cfg802154.h:174: warning: Cannot understand  * @WPAN_PHY_FLAG_TRANSMIT_POWER: Indicates that transceiver will support
 on line 174 - I thought it was a doc line

cfg802154.h:192: warning: Enum value 'WPAN_PHY_FLAG_TXPOWER' not described in enum 'wpan_phy_flags'
cfg802154.h:192: warning: Excess enum value 'WPAN_PHY_FLAG_TRANSMIT_POWER' description in 'wpan_phy_flags'

Fixes: edea8f7c75 ("cfg802154: introduce wpan phy flags")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Alexander Aring <alex.aring@gmail.com>
Cc: Stefan Schmidt <stefan@datenfreihafen.org>
Cc: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230714045127.18752-3-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:29 -07:00
Randy Dunlap
a66557c790 net: bonding: remove kernel-doc comment marker
Change an errant kernel-doc comment marker (/**) to a regular
comment to prevent a kernel-doc warning.

bonding.h:282: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 * Returns NULL if the net_device does not belong to any of the bond's slaves

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Link: https://lore.kernel.org/r/20230714045127.18752-2-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-14 20:39:29 -07:00
Linus Torvalds
be522ac7cd Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
 "This is a bunch of small driver fixes and a larger rework of zone disk
  handling (which reaches into blk and nvme).

  The aacraid array-bounds fix is now critical since the security people
  turned on -Werror for some build tests, which now fail without it"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: storvsc: Handle SRB status value 0x30
  scsi: block: Improve checks in blk_revalidate_disk_zones()
  scsi: block: virtio_blk: Set zone limits before revalidating zones
  scsi: block: nullblk: Set zone limits before revalidating zones
  scsi: nvme: zns: Set zone limits before revalidating zones
  scsi: sd_zbc: Set zone limits before revalidating zones
  scsi: ufs: core: Add support for qTimestamp attribute
  scsi: aacraid: Avoid -Warray-bounds warning
  scsi: ufs: ufs-mediatek: Add dependency for RESET_CONTROLLER
  scsi: ufs: core: Update contact email for monitor sysfs nodes
  scsi: scsi_debug: Remove dead code
  scsi: qla2xxx: Use vmalloc_array() and vcalloc()
  scsi: fnic: Use vmalloc_array() and vcalloc()
  scsi: qla2xxx: Fix error code in qla2x00_start_sp()
  scsi: qla2xxx: Silence a static checker warning
  scsi: lpfc: Fix a possible data race in lpfc_unregister_fcf_rescan()
2023-07-14 19:57:29 -07:00
Linus Torvalds
b3bd86a049 Merge tag 'block-6.5-2023-07-14' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
      - Don't require quirk to use duplicate namespace identifiers
        (Christoph, Sagi)
      - One more BOGUS_NID quirk (Pankaj)
      - IO timeout and error hanlding fixes for PCI (Keith)
      - Enhanced metadata format mask fix (Ankit)
      - Association race condition fix for fibre channel (Michael)
      - Correct debugfs error checks (Minjie)
      - Use PAGE_SECTORS_SHIFT where needed (Damien)
      - Reduce kernel logs for legacy nguid attribute (Keith)
      - Use correct dma direction when unmapping metadata (Ming)

 - Fix for a flush handling regression in this release (Christoph)

 - Fix for batched request time stamping (Chengming)

 - Fix for a regression in the mq-deadline position calculation (Bart)

 - Lockdep fix for blk-crypto (Eric)

 - Fix for a regression in the Amiga partition handling changes
   (Michael)

* tag 'block-6.5-2023-07-14' of git://git.kernel.dk/linux:
  block: queue data commands from the flush state machine at the head
  blk-mq: fix start_time_ns and alloc_time_ns for pre-allocated rq
  nvme-pci: fix DMA direction of unmapping integrity data
  nvme: don't reject probe due to duplicate IDs for single-ported PCIe devices
  block/mq-deadline: Fix a bug in deadline_from_pos()
  nvme: ensure disabling pairs with unquiesce
  nvme-fc: fix race between error recovery and creating association
  nvme-fc: return non-zero status code when fails to create association
  nvme: fix parameter check in nvme_fault_inject_init()
  nvme: warn only once for legacy uuid attribute
  block: remove dead struc request->completion_data field
  nvme: fix the NVME_ID_NS_NVM_STS_MASK definition
  nvmet: use PAGE_SECTORS_SHIFT
  nvme: add BOGUS_NID quirk for Samsung SM953
  blk-crypto: use dynamic lock class for blk_crypto_profile::lock
  block/partition: fix signedness issue for Amiga partitions
2023-07-14 19:52:18 -07:00
Linus Torvalds
3a97a2993e Merge tag 'drm-fixes-2023-07-14-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "There were a bunch of fixes lined up for 2 weeks, so we have quite a
  few scattered fixes, mostly amdgpu and i915, but ttm has a bunch and
  nouveau makes an appearance.

  So a bit busier than usual for rc2, but nothing seems out of the
  ordinary.

  fbdev:
   - dma: Fix documented default preferred_bpp value

  ttm:
   - fix warning that we shouldn't mix && and ||
   - never consider pinned BOs for eviction&swap
   - Don't leak a resource on eviction error
   - Don't leak a resource on swapout move error
   - fix bulk_move corruption when adding a entry

  client:
   - Send hotplug event after registering a client

  dma-buf:
   - keep the signaling time of merged fences v3
   - fix an error pointer vs NULL bug

  sched:
   - wait for all deps in kill jobs
   - call set fence parent from scheduled

  i915:
   - Don't preserve dpll_hw_state for slave crtc in Bigjoiner
   - Consider OA buffer boundary when zeroing out reports
   - Remove dead code from gen8_pte_encode
   - Fix one wrong caching mode enum usage

  amdgpu:
   - SMU i2c locking fix
   - Fix a possible deadlock in process restoration for ROCm apps
   - Disable PCIe lane/speed switching on Intel platforms (the platforms
     don't support it)

  nouveau:
   - disp: fix HDMI on gt215+
   - disp/g94: enable HDMI
   - acr: Abort loading ACR if no firmware was found
   - bring back blit subchannel for pre nv50 GPUs
   - Fix drm_dp_remove_payload() invocation

  ivpu:
   - Fix VPU register access in irq disable
   - Clear specific interrupt status bits on C0

  bridge:
   - dw_hdmi: fix connector access for scdc
   - ti-sn65dsi86: Fix auxiliary bus lifetime

  panel:
   - simple: Add connector_type for innolux_at043tn24
   - simple: Add Powertip PH800480T013 drm_display_mode flags"

* tag 'drm-fixes-2023-07-14-1' of git://anongit.freedesktop.org/drm/drm: (32 commits)
  drm/nouveau: bring back blit subchannel for pre nv50 GPUs
  drm/nouveau/acr: Abort loading ACR if no firmware was found
  drm/amd: Align SMU11 SMU_MSG_OverridePcieParameters implementation with SMU13
  drm/amd: Move helper for dynamic speed switch check out of smu13
  drm/amd/pm: conditionally disable pcie lane/speed switching for SMU13
  drm/amd/pm: share the code around SMU13 pcie parameters update
  drm/amdgpu: avoid restore process run into dead loop.
  drm/amd/pm: fix smu i2c data read risk
  drm/nouveau/disp/g94: enable HDMI
  drm/nouveau/disp: fix HDMI on gt215+
  drm/client: Send hotplug event after registering a client
  drm/i915: Fix one wrong caching mode enum usage
  drm/i915: Remove dead code from gen8_pte_encode
  drm/i915/perf: Consider OA buffer boundary when zeroing out reports
  drm/i915: Don't preserve dpll_hw_state for slave crtc in Bigjoiner
  drm/ttm: never consider pinned BOs for eviction&swap
  drm/fbdev-dma: Fix documented default preferred_bpp value
  dma-buf: fix an error pointer vs NULL bug
  accel/ivpu: Clear specific interrupt status bits on C0
  accel/ivpu: Fix VPU register access in irq disable
  ...
2023-07-14 09:10:28 -07:00
Marc Zyngier
b321c31c9b KVM: arm64: vgic-v4: Make the doorbell request robust w.r.t preemption
Xiang reports that VMs occasionally fail to boot on GICv4.1 systems when
running a preemptible kernel, as it is possible that a vCPU is blocked
without requesting a doorbell interrupt.

The issue is that any preemption that occurs between vgic_v4_put() and
schedule() on the block path will mark the vPE as nonresident and *not*
request a doorbell irq. This occurs because when the vcpu thread is
resumed on its way to block, vcpu_load() will make the vPE resident
again. Once the vcpu actually blocks, we don't request a doorbell
anymore, and the vcpu won't be woken up on interrupt delivery.

Fix it by tracking that we're entering WFI, and key the doorbell
request on that flag. This allows us not to make the vPE resident
when going through a preempt/schedule cycle, meaning we don't lose
any state.

Cc: stable@vger.kernel.org
Fixes: 8e01d9a396 ("KVM: arm64: vgic-v4: Move the GICv4 residency flow to be driven by vcpu_load/put")
Reported-by: Xiang Chen <chenxiang66@hisilicon.com>
Suggested-by: Zenghui Yu <yuzenghui@huawei.com>
Tested-by: Xiang Chen <chenxiang66@hisilicon.com>
Co-developed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20230713070657.3873244-1-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2023-07-13 22:23:34 +00:00
Linus Torvalds
b1983d427a Merge tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter, wireless and ebpf.

  Current release - regressions:

   - netfilter: conntrack: gre: don't set assured flag for clash entries

   - wifi: iwlwifi: remove 'use_tfh' config to fix crash

  Previous releases - regressions:

   - ipv6: fix a potential refcount underflow for idev

   - icmp6: ifix null-ptr-deref of ip6_null_entry->rt6i_idev in
     icmp6_dev()

   - bpf: fix max stack depth check for async callbacks

   - eth: mlx5e:
      - check for NOT_READY flag state after locking
      - fix page_pool page fragment tracking for XDP

   - eth: igc:
      - fix tx hang issue when QBV gate is closed
      - fix corner cases for TSN offload

   - eth: octeontx2-af: Move validation of ptp pointer before its usage

   - eth: ena: fix shift-out-of-bounds in exponential backoff

  Previous releases - always broken:

   - core: prevent skb corruption on frag list segmentation

   - sched:
      - cls_fw: fix improper refcount update leads to use-after-free
      - sch_qfq: account for stab overhead in qfq_enqueue

   - netfilter:
      - report use refcount overflow
      - prevent OOB access in nft_byteorder_eval

   - wifi: mt7921e: fix init command fail with enabled device

   - eth: ocelot: fix oversize frame dropping for preemptible TCs

   - eth: fec: recycle pages for transmitted XDP frames"

* tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
  selftests: tc-testing: add test for qfq with stab overhead
  net/sched: sch_qfq: account for stab overhead in qfq_enqueue
  selftests: tc-testing: add tests for qfq mtu sanity check
  net/sched: sch_qfq: reintroduce lmax bound check for MTU
  wifi: cfg80211: fix receiving mesh packets without RFC1042 header
  wifi: rtw89: debug: fix error code in rtw89_debug_priv_send_h2c_set()
  net: txgbe: fix eeprom calculation error
  net/sched: make psched_mtu() RTNL-less safe
  net: ena: fix shift-out-of-bounds in exponential backoff
  netdevsim: fix uninitialized data in nsim_dev_trap_fa_cookie_write()
  net/sched: flower: Ensure both minimum and maximum ports are specified
  MAINTAINERS: Add another mailing list for QUALCOMM ETHQOS ETHERNET DRIVER
  docs: netdev: update the URL of the status page
  wifi: iwlwifi: remove 'use_tfh' config to fix crash
  xdp: use trusted arguments in XDP hints kfuncs
  bpf: cpumap: Fix memory leak in cpu_map_update_elem
  wifi: airo: avoid uninitialized warning in airo_get_rate()
  octeontx2-pf: Add additional check for MCAM rules
  net: dsa: Removed unneeded of_node_put in felix_parse_ports_node
  net: fec: use netdev_err_once() instead of netdev_err()
  ...
2023-07-13 14:21:22 -07:00
Linus Torvalds
ebc27aacee Merge tag 'trace-v6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:

 - Fix some missing-prototype warnings

 - Fix user events struct args (did not include size of struct)

   When creating a user event, the "struct" keyword is to denote that
   the size of the field will be passed in. But the parsing failed to
   handle this case.

 - Add selftest to struct sizes for user events

 - Fix sample code for direct trampolines.

   The sample code for direct trampolines attached to handle_mm_fault().
   But the prototype changed and the direct trampoline sample code was
   not updated. Direct trampolines needs to have the arguments correct
   otherwise it can fail or crash the system.

 - Remove unused ftrace_regs_caller_ret() prototype.

 - Quiet false positive of FORTIFY_SOURCE

   Due to backward compatibility, the structure used to save stack
   traces in the kernel had a fixed size of 8. This structure is
   exported to user space via the tracing format file. A change was made
   to allow more than 8 functions to be recorded, and user space now
   uses the size field to know how many functions are actually in the
   stack.

   But the structure still has size of 8 (even though it points into the
   ring buffer that has the required amount allocated to hold a full
   stack.

   This was fine until the fortifier noticed that the
   memcpy(&entry->caller, stack, size) was greater than the 8 functions
   and would complain at runtime about it.

   Hide this by using a pointer to the stack location on the ring buffer
   instead of using the address of the entry structure caller field.

 - Fix a deadloop in reading trace_pipe that was caused by a mismatch
   between ring_buffer_empty() returning false which then asked to read
   the data, but the read code uses rb_num_of_entries() that returned
   zero, and causing a infinite "retry".

 - Fix a warning caused by not using all pages allocated to store ftrace
   functions, where this can happen if the linker inserts a bunch of
   "NULL" entries, causing the accounting of how many pages needed to be
   off.

 - Fix histogram synthetic event crashing when the start event is
   removed and the end event is still using a variable from it

 - Fix memory leak in freeing iter->temp in tracing_release_pipe()

* tag 'trace-v6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix memory leak of iter->temp when reading trace_pipe
  tracing/histograms: Add histograms to hist_vars if they have referenced variables
  tracing: Stop FORTIFY_SOURCE complaining about stack trace caller
  ftrace: Fix possible warning on checking all pages used in ftrace_process_locs()
  ring-buffer: Fix deadloop issue on reading trace_pipe
  tracing: arm64: Avoid missing-prototype warnings
  selftests/user_events: Test struct size match cases
  tracing/user_events: Fix struct arg size match check
  x86/ftrace: Remove unsued extern declaration ftrace_regs_caller_ret()
  arm64: ftrace: Add direct call trampoline samples support
  samples: ftrace: Save required argument registers in sample trampolines
2023-07-13 13:44:28 -07:00
Jens Axboe
90b4622954 Merge tag 'nvme-6.5-2023-07-13' of git://git.infradead.org/nvme into block-6.5
Pull NVMe fixes from Keith:

"nvme fixes for Linux 6.5

 - Don't require quirk to use duplicate namespace identifiers
   (Christoph, Sagi)
 - One more BOGUS_NID quirk (Pankaj)
 - IO timeout and error hanlding fixes for PCI (Keith)
 - Enhanced metadata format mask fix (Ankit)
 - Association race condition fix for fibre channel (Michael)
 - Correct debugfs error checks (Minjie)
 - Use PAGE_SECTORS_SHIFT where needed (Damien)
 - Reduce kernel logs for legacy nguid attribute (Keith)
 - Use correct dma direction when unmapping metadata (Ming)"

* tag 'nvme-6.5-2023-07-13' of git://git.infradead.org/nvme:
  nvme-pci: fix DMA direction of unmapping integrity data
  nvme: don't reject probe due to duplicate IDs for single-ported PCIe devices
  nvme: ensure disabling pairs with unquiesce
  nvme-fc: fix race between error recovery and creating association
  nvme-fc: return non-zero status code when fails to create association
  nvme: fix parameter check in nvme_fault_inject_init()
  nvme: warn only once for legacy uuid attribute
  nvme: fix the NVME_ID_NS_NVM_STS_MASK definition
  nvmet: use PAGE_SECTORS_SHIFT
  nvme: add BOGUS_NID quirk for Samsung SM953
2023-07-13 14:26:38 -06:00
Pedro Tammela
150e33e62c net/sched: make psched_mtu() RTNL-less safe
Eric Dumazet says[1]:
-------
Speaking of psched_mtu(), I see that net/sched/sch_pie.c is using it
without holding RTNL, so dev->mtu can be changed underneath.
KCSAN could issue a warning.
-------

Annotate dev->mtu with READ_ONCE() so KCSAN don't issue a warning.

[1] https://lore.kernel.org/all/CANn89iJoJO5VtaJ-2=_d2aOQhb0Xw8iBT_Cxqp2HyuS-zj6azw@mail.gmail.com/

v1 -> v2: Fix commit message

Fixes: d4b36210c2 ("net: pkt_sched: PIE AQM scheme")
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230711021634.561598-1-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-12 15:59:33 -07:00
Linus Torvalds
9a3236ce48 Merge tag 'probes-fixes-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:

 - Fix fprobe's rethook release issues:

     - Release rethook after ftrace_ops is unregistered so that the
       rethook is not accessed after free.

     - Stop rethook before ftrace_ops is unregistered so that the
       rethook is NOT used after exiting unregister_fprobe()

 - Fix eprobe cleanup logic. If it attaches to multiple events and
   failes to enable one of them, rollback all enabled events correctly.

 - Fix fprobe to unlock ftrace recursion lock correctly when it missed
   by another running kprobe.

 - Cleanup kprobe to remove unnecessary NULL.

 - Cleanup kprobe to remove unnecessary 0 initializations.

* tag 'probes-fixes-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  fprobe: Ensure running fprobe_exit_handler() finished before calling rethook_free()
  kernel: kprobes: Remove unnecessary ‘0’ values
  kprobes: Remove unnecessary ‘NULL’ values from correct_ret_addr
  fprobe: add unlock to match a succeeded ftrace_test_recursion_trylock
  kernel/trace: Fix cleanup logic of enable_trace_eprobe
  fprobe: Release rethook after the ftrace_ops is unregistered
2023-07-12 12:01:16 -07:00
Arnd Bergmann
7d8b31b73c tracing: arm64: Avoid missing-prototype warnings
These are all tracing W=1 warnings in arm64 allmodconfig about missing
prototypes:

kernel/trace/trace_kprobe_selftest.c:7:5: error: no previous prototype for 'kprobe_trace_selftest_target' [-Werror=missing-pro
totypes]
kernel/trace/ftrace.c:329:5: error: no previous prototype for '__register_ftrace_function' [-Werror=missing-prototypes]
kernel/trace/ftrace.c:372:5: error: no previous prototype for '__unregister_ftrace_function' [-Werror=missing-prototypes]
kernel/trace/ftrace.c:4130:15: error: no previous prototype for 'arch_ftrace_match_adjust' [-Werror=missing-prototypes]
kernel/trace/fgraph.c:243:15: error: no previous prototype for 'ftrace_return_to_handler' [-Werror=missing-prototypes]
kernel/trace/fgraph.c:358:6: error: no previous prototype for 'ftrace_graph_sleep_time_control' [-Werror=missing-prototypes]
arch/arm64/kernel/ftrace.c:460:6: error: no previous prototype for 'prepare_ftrace_return' [-Werror=missing-prototypes]
arch/arm64/kernel/ptrace.c:2172:5: error: no previous prototype for 'syscall_trace_enter' [-Werror=missing-prototypes]
arch/arm64/kernel/ptrace.c:2195:6: error: no previous prototype for 'syscall_trace_exit' [-Werror=missing-prototypes]

Move the declarations to an appropriate header where they can be seen
by the caller and callee, and make sure the headers are included where
needed.

Link: https://lore.kernel.org/linux-trace-kernel/20230517125215.930689-1-arnd@kernel.org

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Florent Revest <revest@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
[ Fixed ftrace_return_to_handler() to handle CONFIG_HAVE_FUNCTION_GRAPH_RETVAL case ]
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-12 12:06:04 -04:00
Petr Pavlu
5fc5224855 vmlinux.lds.h: Remove a reference to no longer used sections .text..refcount
Sections .text..refcount were previously used to hold an error path code
for fast refcount overflow protection on x86, see commit 7a46ec0e2f
("locking/refcounts, x86/asm: Implement fast refcount overflow
protection") and commit 564c9cc84e ("locking/refcounts, x86/asm: Use
unique .text section for refcount exceptions").

The code was replaced and removed in commit fb041bb7c0
("locking/refcount: Consolidate implementations of refcount_t") and no
sections .text..refcount are present since then.

Remove then a relic referencing these sections from TEXT_TEXT to avoid
confusing people, like me. This is a non-functional change.

Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Link: https://lore.kernel.org/r/20230711125054.9000-1-petr.pavlu@suse.com
Signed-off-by: Kees Cook <keescook@chromium.org>
2023-07-11 14:29:43 -07:00
Martin K. Petersen
e96277a570 Merge branch '6.5/scsi-staging' into 6.5/scsi-fixes
Pull in the currently staged SCSI fixes for 6.5.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-07-11 12:15:15 -04:00
Maxime Ripard
2f98e686ef Merge v6.5-rc1 into drm-misc-fixes
Boris needs 6.5-rc1 in drm-misc-fixes to prevent a conflict.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
2023-07-11 09:23:20 +02:00
Zhang Yi
46f881b5b1 jbd2: fix a race when checking checkpoint buffer busy
Before removing checkpoint buffer from the t_checkpoint_list, we have to
check both BH_Dirty and BH_Lock bits together to distinguish buffers
have not been or were being written back. But __cp_buffer_busy() checks
them separately, it first check lock state and then check dirty, the
window between these two checks could be raced by writing back
procedure, which locks buffer and clears buffer dirty before I/O
completes. So it cannot guarantee checkpointing buffers been written
back to disk if some error happens later. Finally, it may clean
checkpoint transactions and lead to inconsistent filesystem.

jbd2_journal_forget() and __journal_try_to_free_buffer() also have the
same problem (journal_unmap_buffer() escape from this issue since it's
running under the buffer lock), so fix them through introducing a new
helper to try holding the buffer lock and remove really clean buffer.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217490
Cc: stable@vger.kernel.org
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230606135928.434610-6-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2023-07-10 23:09:21 -04:00
Zhang Yi
b98dba273a jbd2: remove journal_clean_one_cp_list()
journal_clean_one_cp_list() and journal_shrink_one_cp_list() are almost
the same, so merge them into journal_shrink_one_cp_list(), remove the
nr_to_scan parameter, always scan and try to free the whole checkpoint
list.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230606135928.434610-4-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2023-07-10 23:09:21 -04:00
Zhang Yi
be22255360 jbd2: remove t_checkpoint_io_list
Since t_checkpoint_io_list was stop using in jbd2_log_do_checkpoint()
now, it's time to remove the whole t_checkpoint_io_list logic.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230606135928.434610-3-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2023-07-10 23:09:21 -04:00
Masami Hiramatsu (Google)
195b9cb5b2 fprobe: Ensure running fprobe_exit_handler() finished before calling rethook_free()
Ensure running fprobe_exit_handler() has finished before
calling rethook_free() in the unregister_fprobe() so that caller can free
the fprobe right after unregister_fprobe().

unregister_fprobe() ensured that all running fprobe_entry/exit_handler()
have finished by calling unregister_ftrace_function() which synchronizes
RCU. But commit 5f81018753 ("fprobe: Release rethook after the ftrace_ops
is unregistered") changed to call rethook_free() after
unregister_ftrace_function(). So call rethook_stop() to make rethook
disabled before unregister_ftrace_function() and ensure it again.

Here is the possible code flow that can call the exit handler after
unregister_fprobe().

------
 CPU1                              CPU2
 call unregister_fprobe(fp)
 ...
                                   __fprobe_handler()
                                   rethook_hook() on probed function
 unregister_ftrace_function()
                                   return from probed function
                                   rethook hooks
                                   find rh->handler == fprobe_exit_handler
                                   call fprobe_exit_handler()
 rethook_free():
   set rh->handler = NULL;
 return from unreigster_fprobe;
                                   call fp->exit_handler() <- (*)
------

(*) At this point, the exit handler is called after returning from
unregister_fprobe().

This fixes it as following;
------
 CPU1                              CPU2
 call unregister_fprobe()
 ...
 rethook_stop():
   set rh->handler = NULL;
                                   __fprobe_handler()
                                   rethook_hook() on probed function
 unregister_ftrace_function()
                                   return from probed function
                                   rethook hooks
                                   find rh->handler == NULL
                                   return from rethook
 rethook_free()
 return from unreigster_fprobe;
------

Link: https://lore.kernel.org/all/168873859949.156157.13039240432299335849.stgit@devnote2/

Fixes: 5f81018753 ("fprobe: Release rethook after the ftrace_ops is unregistered")
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-11 09:17:01 +09:00
Jens Axboe
dc8cbb65dc block: remove dead struc request->completion_data field
It's no longer used. While in there, also update the comment as to why
it can coexist with the rb_node.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-07-10 10:23:05 -06:00
Ankit Kumar
b938e66036 nvme: fix the NVME_ID_NS_NVM_STS_MASK definition
As per NVMe command set specification 1.0c Storage tag size is 7 bits.

Fixes: 4020aad85c ("nvme: add support for enhanced metadata")
Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-07-10 09:12:31 -07:00