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mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Commit Graph

1336732 Commits

Author SHA1 Message Date
Thomas Gleixner
82c387ef75 sched/core: Prevent rescheduling when interrupts are disabled
David reported a warning observed while loop testing kexec jump:

  Interrupts enabled after irqrouter_resume+0x0/0x50
  WARNING: CPU: 0 PID: 560 at drivers/base/syscore.c:103 syscore_resume+0x18a/0x220
   kernel_kexec+0xf6/0x180
   __do_sys_reboot+0x206/0x250
   do_syscall_64+0x95/0x180

The corresponding interrupt flag trace:

  hardirqs last  enabled at (15573): [<ffffffffa8281b8e>] __up_console_sem+0x7e/0x90
  hardirqs last disabled at (15580): [<ffffffffa8281b73>] __up_console_sem+0x63/0x90

That means __up_console_sem() was invoked with interrupts enabled. Further
instrumentation revealed that in the interrupt disabled section of kexec
jump one of the syscore_suspend() callbacks woke up a task, which set the
NEED_RESCHED flag. A later callback in the resume path invoked
cond_resched() which in turn led to the invocation of the scheduler:

  __cond_resched+0x21/0x60
  down_timeout+0x18/0x60
  acpi_os_wait_semaphore+0x4c/0x80
  acpi_ut_acquire_mutex+0x3d/0x100
  acpi_ns_get_node+0x27/0x60
  acpi_ns_evaluate+0x1cb/0x2d0
  acpi_rs_set_srs_method_data+0x156/0x190
  acpi_pci_link_set+0x11c/0x290
  irqrouter_resume+0x54/0x60
  syscore_resume+0x6a/0x200
  kernel_kexec+0x145/0x1c0
  __do_sys_reboot+0xeb/0x240
  do_syscall_64+0x95/0x180

This is a long standing problem, which probably got more visible with
the recent printk changes. Something does a task wakeup and the
scheduler sets the NEED_RESCHED flag. cond_resched() sees it set and
invokes schedule() from a completely bogus context. The scheduler
enables interrupts after context switching, which causes the above
warning at the end.

Quite some of the code paths in syscore_suspend()/resume() can result in
triggering a wakeup with the exactly same consequences. They might not
have done so yet, but as they share a lot of code with normal operations
it's just a question of time.

The problem only affects the PREEMPT_NONE and PREEMPT_VOLUNTARY scheduling
models. Full preemption is not affected as cond_resched() is disabled and
the preemption check preemptible() takes the interrupt disabled flag into
account.

Cure the problem by adding a corresponding check into cond_resched().

Reported-by: David Woodhouse <dwmw@amazon.co.uk>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: David Woodhouse <dwmw@amazon.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable@vger.kernel.org
Closes: https://lore.kernel.org/all/7717fe2ac0ce5f0a2c43fdab8b11f4483d54a2a4.camel@infradead.org
2025-02-27 21:13:57 +01:00
Ryan Roberts
eed6bfa8b2 arm64: hugetlb: Fix flush_hugetlb_tlb_range() invalidation level
commit c910f2b655 ("arm64/mm: Update tlb invalidation routines for
FEAT_LPA2") changed the "invalidation level unknown" hint from 0 to
TLBI_TTL_UNKNOWN (INT_MAX). But the fallback "unknown level" path in
flush_hugetlb_tlb_range() was not updated. So as it stands, when trying
to invalidate CONT_PMD_SIZE or CONT_PTE_SIZE hugetlb mappings, we will
spuriously try to invalidate at level 0 on LPA2-enabled systems.

Fix this so that the fallback passes TLBI_TTL_UNKNOWN, and while we are
at it, explicitly use the correct stride and level for CONT_PMD_SIZE and
CONT_PTE_SIZE, which should provide a minor optimization.

Cc: stable@vger.kernel.org
Fixes: c910f2b655 ("arm64/mm: Update tlb invalidation routines for FEAT_LPA2")
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Link: https://lore.kernel.org/r/20250226120656.2400136-4-ryan.roberts@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2025-02-27 17:40:58 +00:00
Ryan Roberts
49c87f7677 arm64: hugetlb: Fix huge_ptep_get_and_clear() for non-present ptes
arm64 supports multiple huge_pte sizes. Some of the sizes are covered by
a single pte entry at a particular level (PMD_SIZE, PUD_SIZE), and some
are covered by multiple ptes at a particular level (CONT_PTE_SIZE,
CONT_PMD_SIZE). So the function has to figure out the size from the
huge_pte pointer. This was previously done by walking the pgtable to
determine the level and by using the PTE_CONT bit to determine the
number of ptes at the level.

But the PTE_CONT bit is only valid when the pte is present. For
non-present pte values (e.g. markers, migration entries), the previous
implementation was therefore erroneously determining the size. There is
at least one known caller in core-mm, move_huge_pte(), which may call
huge_ptep_get_and_clear() for a non-present pte. So we must be robust to
this case. Additionally the "regular" ptep_get_and_clear() is robust to
being called for non-present ptes so it makes sense to follow the
behavior.

Fix this by using the new sz parameter which is now provided to the
function. Additionally when clearing each pte in a contig range, don't
gather the access and dirty bits if the pte is not present.

An alternative approach that would not require API changes would be to
store the PTE_CONT bit in a spare bit in the swap entry pte for the
non-present case. But it felt cleaner to follow other APIs' lead and
just pass in the size.

As an aside, PTE_CONT is bit 52, which corresponds to bit 40 in the swap
entry offset field (layout of non-present pte). Since hugetlb is never
swapped to disk, this field will only be populated for markers, which
always set this bit to 0 and hwpoison swap entries, which set the offset
field to a PFN; So it would only ever be 1 for a 52-bit PVA system where
memory in that high half was poisoned (I think!). So in practice, this
bit would almost always be zero for non-present ptes and we would only
clear the first entry if it was actually a contiguous block. That's
probably a less severe symptom than if it was always interpreted as 1
and cleared out potentially-present neighboring PTEs.

Cc: stable@vger.kernel.org
Fixes: 66b3923a1a ("arm64: hugetlb: add support for PTE contiguous bit")
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Link: https://lore.kernel.org/r/20250226120656.2400136-3-ryan.roberts@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2025-02-27 17:40:58 +00:00
Ryan Roberts
02410ac72a mm: hugetlb: Add huge page size param to huge_ptep_get_and_clear()
In order to fix a bug, arm64 needs to be told the size of the huge page
for which the huge_pte is being cleared in huge_ptep_get_and_clear().
Provide for this by adding an `unsigned long sz` parameter to the
function. This follows the same pattern as huge_pte_clear() and
set_huge_pte_at().

This commit makes the required interface modifications to the core mm as
well as all arches that implement this function (arm64, loongarch, mips,
parisc, powerpc, riscv, s390, sparc). The actual arm64 bug will be fixed
in a separate commit.

Cc: stable@vger.kernel.org
Fixes: 66b3923a1a ("arm64: hugetlb: add support for PTE contiguous bit")
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> # riscv
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com> # s390
Link: https://lore.kernel.org/r/20250226120656.2400136-2-ryan.roberts@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2025-02-27 17:40:57 +00:00
Linus Torvalds
1e15510b71 Including fixes from bluetooth. We didn't get netfilter or wireless PRs
this week, so next week's PR is probably going to be bigger. A healthy
 dose of fixes for bugs introduced in the current release nonetheless.
 
 Current release - regressions:
 
  - Bluetooth: always allow SCO packets for user channel
 
  - af_unix: fix memory leak in unix_dgram_sendmsg()
 
  - rxrpc:
    - remove redundant peer->mtu_lock causing lockdep splats
    - fix spinlock flavor issues with the peer record hash
 
  - eth: iavf: fix circular lock dependency with netdev_lock
 
  - net: use rtnl_net_dev_lock() in register_netdevice_notifier_dev_net()
    RDMA driver register notifier after the device
 
 Current release - new code bugs:
 
  - ethtool: fix ioctl confusing drivers about desired HDS user config
 
  - eth: ixgbe: fix media cage present detection for E610 device
 
 Previous releases - regressions:
 
  - loopback: avoid sending IP packets without an Ethernet header
 
  - mptcp: reset connection when MPTCP opts are dropped after join
 
 Previous releases - always broken:
 
  - net: better track kernel sockets lifetime
 
  - ipv6: fix dst ref loop on input in seg6 and rpl lw tunnels
 
  - phy: qca807x: use right value from DTS for DAC_DSP_BIAS_CURRENT
 
  - eth: enetc: number of error handling fixes
 
  - dsa: rtl8366rb: reshuffle the code to fix config / build issue
    with LED support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bluetooth.

  We didn't get netfilter or wireless PRs this week, so next week's PR
  is probably going to be bigger. A healthy dose of fixes for bugs
  introduced in the current release nonetheless.

  Current release - regressions:

   - Bluetooth: always allow SCO packets for user channel

   - af_unix: fix memory leak in unix_dgram_sendmsg()

   - rxrpc:
       - remove redundant peer->mtu_lock causing lockdep splats
       - fix spinlock flavor issues with the peer record hash

   - eth: iavf: fix circular lock dependency with netdev_lock

   - net: use rtnl_net_dev_lock() in
     register_netdevice_notifier_dev_net() RDMA driver register notifier
     after the device

  Current release - new code bugs:

   - ethtool: fix ioctl confusing drivers about desired HDS user config

   - eth: ixgbe: fix media cage present detection for E610 device

  Previous releases - regressions:

   - loopback: avoid sending IP packets without an Ethernet header

   - mptcp: reset connection when MPTCP opts are dropped after join

  Previous releases - always broken:

   - net: better track kernel sockets lifetime

   - ipv6: fix dst ref loop on input in seg6 and rpl lw tunnels

   - phy: qca807x: use right value from DTS for DAC_DSP_BIAS_CURRENT

   - eth: enetc: number of error handling fixes

   - dsa: rtl8366rb: reshuffle the code to fix config / build issue with
     LED support"

* tag 'net-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (53 commits)
  net: ti: icss-iep: Reject perout generation request
  idpf: fix checksums set in idpf_rx_rsc()
  selftests: drv-net: Check if combined-count exists
  net: ipv6: fix dst ref loop on input in rpl lwt
  net: ipv6: fix dst ref loop on input in seg6 lwt
  usbnet: gl620a: fix endpoint checking in genelink_bind()
  net/mlx5: IRQ, Fix null string in debug print
  net/mlx5: Restore missing trace event when enabling vport QoS
  net/mlx5: Fix vport QoS cleanup on error
  net: mvpp2: cls: Fixed Non IP flow, with vlan tag flow defination.
  af_unix: Fix memory leak in unix_dgram_sendmsg()
  net: Handle napi_schedule() calls from non-interrupt
  net: Clear old fragment checksum value in napi_reuse_skb
  gve: unlink old napi when stopping a queue using queue API
  net: Use rtnl_net_dev_lock() in register_netdevice_notifier_dev_net().
  tcp: Defer ts_recent changes until req is owned
  net: enetc: fix the off-by-one issue in enetc_map_tx_tso_buffs()
  net: enetc: remove the mm_lock from the ENETC v4 driver
  net: enetc: add missing enetc4_link_deinit()
  net: enetc: update UDP checksum when updating originTimestamp field
  ...
2025-02-27 09:32:42 -08:00
Ard Biesheuvel
e3cf2d91d0 efi/mokvar-table: Avoid repeated map/unmap of the same page
Tweak the logic that traverses the MOKVAR UEFI configuration table to
only unmap the entry header and map the next one if they don't live in
the same physical page.

Link: https://lore.kernel.org/all/8f085931-3e9d-4386-9209-1d6c95616327@uncooperative.org/
Tested-By: Peter Jones <pjones@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-02-27 18:25:44 +01:00
Peter Jones
2b90e7ace7 efi: Don't map the entire mokvar table to determine its size
Currently, when validating the mokvar table, we (re)map the entire table
on each iteration of the loop, adding space as we discover new entries.
If the table grows over a certain size, this fails due to limitations of
early_memmap(), and we get a failure and traceback:

  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 0 at mm/early_ioremap.c:139 __early_ioremap+0xef/0x220
  ...
  Call Trace:
   <TASK>
   ? __early_ioremap+0xef/0x220
   ? __warn.cold+0x93/0xfa
   ? __early_ioremap+0xef/0x220
   ? report_bug+0xff/0x140
   ? early_fixup_exception+0x5d/0xb0
   ? early_idt_handler_common+0x2f/0x3a
   ? __early_ioremap+0xef/0x220
   ? efi_mokvar_table_init+0xce/0x1d0
   ? setup_arch+0x864/0xc10
   ? start_kernel+0x6b/0xa10
   ? x86_64_start_reservations+0x24/0x30
   ? x86_64_start_kernel+0xed/0xf0
   ? common_startup_64+0x13e/0x141
   </TASK>
  ---[ end trace 0000000000000000 ]---
  mokvar: Failed to map EFI MOKvar config table pa=0x7c4c3000, size=265187.

Mapping the entire structure isn't actually necessary, as we don't ever
need more than one entry header mapped at once.

Changes efi_mokvar_table_init() to only map each entry header, not the
entire table, when determining the table size.  Since we're not mapping
any data past the variable name, it also changes the code to enforce
that each variable name is NUL terminated, rather than attempting to
verify it in place.

Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-02-27 18:25:44 +01:00
Linus Torvalds
f09d694cf7 sound fixes for 6.14-rc5
A collection of fixes.  The only slightly large change is for ASoC
 Cirrus codec, but that's still in a normal range.
 All the rest are small device-specific fixes and should be fairly
 safe to take.
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Merge tag 'sound-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of fixes. The only slightly large change is for ASoC
  Cirrus codec, but that's still in a normal range. All the rest are
  small device-specific fixes and should be fairly safe to take"

* tag 'sound-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Fix microphone regression on ASUS N705UD
  ALSA: hda/realtek: Fix wrong mic setup for ASUS VivoBook 15
  ASoC: cs35l56: Prevent races when soft-resetting using SPI control
  firmware: cs_dsp: Remove async regmap writes
  ASoC: Intel: sof_sdw: warn both sdw and pch dmic are used
  ASoC: SOF: Intel: don't check number of sdw links when set dmic_fixup
  ASoC: dapm-graph: set fill colour of turned on nodes
  ASoC: fsl: Rename stream name of SAI DAI driver
  ASoC: es8328: fix route from DAC to output
  ALSA: usb-audio: Re-add sample rate quirk for Pioneer DJM-900NXS2
  ASoC: tas2764: Set the SDOUT polarity correctly
  ASoC: tas2764: Fix power control mask
  ALSA: usb-audio: Avoid dropping MIDI events at closing multiple ports
  ASoC: tas2770: Fix volume scale
2025-02-27 08:41:19 -08:00
Meghana Malladi
54e1b4becf net: ti: icss-iep: Reject perout generation request
IEP driver supports both perout and pps signal generation
but perout feature is faulty with half-cooked support
due to some missing configuration. Remove perout
support from the driver and reject perout requests with
"not supported" error code.

Fixes: c1e0230eea ("net: ti: icss-iep: Add IEP driver")
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20250227092441.1848419-1-m-malladi@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-27 08:09:02 -08:00
Eric Dumazet
674fcb4f4a idpf: fix checksums set in idpf_rx_rsc()
idpf_rx_rsc() uses skb_transport_offset(skb) while the transport header
is not set yet.

This triggers the following warning for CONFIG_DEBUG_NET=y builds.

DEBUG_NET_WARN_ON_ONCE(!skb_transport_header_was_set(skb))

[   69.261620] WARNING: CPU: 7 PID: 0 at ./include/linux/skbuff.h:3020 idpf_vport_splitq_napi_poll (include/linux/skbuff.h:3020) idpf
[   69.261629] Modules linked in: vfat fat dummy bridge intel_uncore_frequency_tpmi intel_uncore_frequency_common intel_vsec_tpmi idpf intel_vsec cdc_ncm cdc_eem cdc_ether usbnet mii xhci_pci xhci_hcd ehci_pci ehci_hcd libeth
[   69.261644] CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Tainted: G S      W          6.14.0-smp-DEV #1697
[   69.261648] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN
[   69.261650] RIP: 0010:idpf_vport_splitq_napi_poll (include/linux/skbuff.h:3020) idpf
[   69.261677] ? __warn (kernel/panic.c:242 kernel/panic.c:748)
[   69.261682] ? idpf_vport_splitq_napi_poll (include/linux/skbuff.h:3020) idpf
[   69.261687] ? report_bug (lib/bug.c:?)
[   69.261690] ? handle_bug (arch/x86/kernel/traps.c:285)
[   69.261694] ? exc_invalid_op (arch/x86/kernel/traps.c:309)
[   69.261697] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621)
[   69.261700] ? __pfx_idpf_vport_splitq_napi_poll (drivers/net/ethernet/intel/idpf/idpf_txrx.c:4011) idpf
[   69.261704] ? idpf_vport_splitq_napi_poll (include/linux/skbuff.h:3020) idpf
[   69.261708] ? idpf_vport_splitq_napi_poll (drivers/net/ethernet/intel/idpf/idpf_txrx.c:3072) idpf
[   69.261712] __napi_poll (net/core/dev.c:7194)
[   69.261716] net_rx_action (net/core/dev.c:7265)
[   69.261718] ? __qdisc_run (net/sched/sch_generic.c:293)
[   69.261721] ? sched_clock (arch/x86/include/asm/preempt.h:84 arch/x86/kernel/tsc.c:288)
[   69.261726] handle_softirqs (kernel/softirq.c:561)

Fixes: 3a8845af66 ("idpf: add RX splitq napi poll support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alan Brady <alan.brady@intel.com>
Cc: Joshua Hay <joshua.a.hay@intel.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20250226221253.1927782-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-27 07:31:41 -08:00
Joe Damato
1cbddbddee selftests: drv-net: Check if combined-count exists
Some drivers, like tg3, do not set combined-count:

$ ethtool -l enp4s0f1
Channel parameters for enp4s0f1:
Pre-set maximums:
RX:		4
TX:		4
Other:		n/a
Combined:	n/a
Current hardware settings:
RX:		4
TX:		1
Other:		n/a
Combined:	n/a

In the case where combined-count is not set, the ethtool netlink code
in the kernel elides the value and the code in the test:

  netnl.channels_get(...)

With a tg3 device, the returned dictionary looks like:

{'header': {'dev-index': 3, 'dev-name': 'enp4s0f1'},
 'rx-max': 4,
 'rx-count': 4,
 'tx-max': 4,
 'tx-count': 1}

Note that the key 'combined-count' is missing. As a result of this
missing key the test raises an exception:

 # Exception|     if channels['combined-count'] == 0:
 # Exception|        ~~~~~~~~^^^^^^^^^^^^^^^^^^
 # Exception| KeyError: 'combined-count'

Change the test to check if 'combined-count' is a key in the dictionary
first and if not assume that this means the driver has separate RX and
TX queues.

With this change, the test now passes successfully on tg3 and mlx5
(which does have a 'combined-count').

Fixes: 1cf2704242 ("net: selftest: add test for netdev netlink queue-get API")
Signed-off-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: David Wei <dw@davidwei.uk>
Link: https://patch.msgid.link/20250226181957.212189-1-jdamato@fastly.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-27 07:30:32 -08:00
Paolo Abeni
c907db8d44 Merge branch 'fixes-for-seg6-and-rpl-lwtunnels-on-input'
Justin Iurman says:

====================
fixes for seg6 and rpl lwtunnels on input

As a follow up to commit 92191dd107 ("net: ipv6: fix dst ref loops in
rpl, seg6 and ioam6 lwtunnels"), we also need a conditional dst cache on
input for seg6_iptunnel and rpl_iptunnel to prevent dst ref loops (i.e.,
if the packet destination did not change, we may end up recording a
reference to the lwtunnel in its own cache, and the lwtunnel state will
never be freed). This series provides a fix to respectively prevent a
dst ref loop on input in seg6_iptunnel and rpl_iptunnel.

v2:
- https://lore.kernel.org/netdev/20250211221624.18435-1-justin.iurman@uliege.be/
v1:
- https://lore.kernel.org/netdev/20250209193840.20509-1-justin.iurman@uliege.be/
====================

Link: https://patch.msgid.link/20250225175139.25239-1-justin.iurman@uliege.be
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-27 14:18:24 +01:00
Justin Iurman
13e55fbaec net: ipv6: fix dst ref loop on input in rpl lwt
Prevent a dst ref loop on input in rpl_iptunnel.

Fixes: a7a29f9c36 ("net: ipv6: add rpl sr tunnel")
Cc: Alexander Aring <alex.aring@gmail.com>
Cc: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-27 14:18:22 +01:00
Justin Iurman
c64a0727f9 net: ipv6: fix dst ref loop on input in seg6 lwt
Prevent a dst ref loop on input in seg6_iptunnel.

Fixes: af4a2209b1 ("ipv6: sr: use dst_cache in seg6_input")
Cc: David Lebrun <dlebrun@google.com>
Cc: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-27 14:18:21 +01:00
Nikita Zhandarovich
1cf9631d83 usbnet: gl620a: fix endpoint checking in genelink_bind()
Syzbot reports [1] a warning in usb_submit_urb() triggered by
inconsistencies between expected and actually present endpoints
in gl620a driver. Since genelink_bind() does not properly
verify whether specified eps are in fact provided by the device,
in this case, an artificially manufactured one, one may get a
mismatch.

Fix the issue by resorting to a usbnet utility function
usbnet_get_endpoints(), usually reserved for this very problem.
Check for endpoints and return early before proceeding further if
any are missing.

[1] Syzbot report:
usb 5-1: Manufacturer: syz
usb 5-1: SerialNumber: syz
usb 5-1: config 0 descriptor??
gl620a 5-1:0.23 usb0: register 'gl620a' at usb-dummy_hcd.0-1, ...
------------[ cut here ]------------
usb 5-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 2 PID: 1841 at drivers/usb/core/urb.c:503 usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503
Modules linked in:
CPU: 2 UID: 0 PID: 1841 Comm: kworker/2:2 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: mld mld_ifc_work
RIP: 0010:usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503
...
Call Trace:
 <TASK>
 usbnet_start_xmit+0x6be/0x2780 drivers/net/usb/usbnet.c:1467
 __netdev_start_xmit include/linux/netdevice.h:5002 [inline]
 netdev_start_xmit include/linux/netdevice.h:5011 [inline]
 xmit_one net/core/dev.c:3590 [inline]
 dev_hard_start_xmit+0x9a/0x7b0 net/core/dev.c:3606
 sch_direct_xmit+0x1ae/0xc30 net/sched/sch_generic.c:343
 __dev_xmit_skb net/core/dev.c:3827 [inline]
 __dev_queue_xmit+0x13d4/0x43e0 net/core/dev.c:4400
 dev_queue_xmit include/linux/netdevice.h:3168 [inline]
 neigh_resolve_output net/core/neighbour.c:1514 [inline]
 neigh_resolve_output+0x5bc/0x950 net/core/neighbour.c:1494
 neigh_output include/net/neighbour.h:539 [inline]
 ip6_finish_output2+0xb1b/0x2070 net/ipv6/ip6_output.c:141
 __ip6_finish_output net/ipv6/ip6_output.c:215 [inline]
 ip6_finish_output+0x3f9/0x1360 net/ipv6/ip6_output.c:226
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip6_output+0x1f8/0x540 net/ipv6/ip6_output.c:247
 dst_output include/net/dst.h:450 [inline]
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 mld_sendpack+0x9f0/0x11d0 net/ipv6/mcast.c:1819
 mld_send_cr net/ipv6/mcast.c:2120 [inline]
 mld_ifc_work+0x740/0xca0 net/ipv6/mcast.c:2651
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Reported-by: syzbot+d693c07c6f647e0388d3@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d693c07c6f647e0388d3
Fixes: 47ee3051c8 ("[PATCH] USB: usbnet (5/9) module for genesys gl620a cables")
Cc: stable@vger.kernel.org
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Link: https://patch.msgid.link/20250224172919.1220522-1-n.zhandarovich@fintech.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-27 11:35:10 +01:00
James Bottomley
fc20737d8b efivarfs: allow creation of zero length files
Temporarily allow the creation of zero length files in efivarfs so the
'fwupd' user space firmware update tool can continue to operate. This
hack should be reverted as soon as the fwupd mechanisms for updating
firmware have been fixed.

fwupd has been coded to open a firmware file, close it, remove the
immutable bit and write to it.  Since commit 908af31f48 ("efivarfs:
fix error on write to new variable leaving remnants") this behaviour
results in the first close removing the file which causes the second
write to fail.  To allow fwupd to keep working code up an indicator of
size 1 if a write fails and only remove the file on that condition (so
create at zero size is allowed).

Tested-by: Richard Hughes <richard@hughsie.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
[ardb: replace LVFS with fwupd, as suggested by Richard]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-02-27 11:27:49 +01:00
Xi Ruoyao
6d48ad0407 MIPS: Ignore relocs against __ex_table for relocatable kernel
Since commit 6f2c2f93a1 ("scripts/sorttable: Remove unneeded
Elf_Rel"), sorttable no longer clears relocs against __ex_table,
claiming "it was never used."  But in fact MIPS relocatable kernel had
been implicitly depending on this behavior, so after this commit the
MIPS relocatable kernel has started to spit oops like:

	CPU 1 Unable to handle kernel paging request at virtual address 000000fffbbdbff8, epc == ffffffff818f9a6c, ra == ffffffff813ad7d0
	... ...
	Call Trace:
	[<ffffffff818f9a6c>] __raw_copy_from_user+0x48/0x2fc
	[<ffffffff813ad7d0>] cp_statx+0x1a0/0x1e0
	[<ffffffff813ae528>] do_statx_fd+0xa8/0x118
	[<ffffffff813ae670>] sys_statx+0xd8/0xf8
	[<ffffffff81156cc8>] syscall_common+0x34/0x58

So ignore those relocs on our own to fix the issue.

Fixes: 6f2c2f93a1 ("scripts/sorttable: Remove unneeded Elf_Rel")
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2025-02-27 11:07:50 +01:00
Thomas Zimmermann
3603996432 drm/fbdev-dma: Add shadow buffering for deferred I/O
DMA areas are not necessarily backed by struct page, so we cannot
rely on it for deferred I/O. Allocate a shadow buffer for drivers
that require deferred I/O and use it as framebuffer memory.

Fixes driver errors about being "Unable to handle kernel NULL pointer
dereference at virtual address" or "Unable to handle kernel paging
request at virtual address".

The patch splits drm_fbdev_dma_driver_fbdev_probe() in an initial
allocation, which creates the DMA-backed buffer object, and a tail
that sets up the fbdev data structures. There is a tail function for
direct memory mappings and a tail function for deferred I/O with
the shadow buffer.

It is no longer possible to use deferred I/O without shadow buffer.
It can be re-added if there exists a reliably test for usable struct
page in the allocated DMA-backed buffer object.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reported-by: Nuno Gonçalves <nunojpg@gmail.com>
CLoses: https://lore.kernel.org/dri-devel/CAEXMXLR55DziAMbv_+2hmLeH-jP96pmit6nhs6siB22cpQFr9w@mail.gmail.com/
Tested-by: Nuno Gonçalves <nunojpg@gmail.com>
Fixes: 5ab91447aa ("drm/tiny/ili9225: Use fbdev-dma")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: <stable@vger.kernel.org> # v6.11+
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241211090643.74250-1-tzimmermann@suse.de
2025-02-27 09:37:55 +01:00
Caleb Connolly
e521f51671 dmaengine: Revert "dmaengine: qcom: bam_dma: Avoid writing unavailable register"
This commit causes a hard crash on sdm845 and likely other platforms.
Revert it until a proper fix is found.

This reverts commit 57a7138d06: ("dmaengine: qcom: bam_dma: Avoid writing
unavailable register")

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Fixes: 57a7138d06 ("dmaengine: qcom: bam_dma: Avoid writing unavailable register")
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on sdm845-DB845c
Tested-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20250208223112.142567-1-caleb.connolly@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-02-27 13:29:15 +05:30
Jakub Kicinski
6194472325 Merge branch 'mlx5-misc-fixes-2025-02-25'
Tariq Toukan says:

====================
mlx5 misc fixes 2025-02-25

This small patchset provides misc bug fixes from the team to the mlx5
core driver.
====================

Link: https://patch.msgid.link/20250225072608.526866-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 19:29:48 -08:00
Shay Drory
2f5a6014eb net/mlx5: IRQ, Fix null string in debug print
irq_pool_alloc() debug print can print a null string.
Fix it by providing a default string to print.

Fixes: 71e084e264 ("net/mlx5: Allocating a pool of MSI-X vectors for SFs")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501141055.SwfIphN0-lkp@intel.com/
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20250225072608.526866-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 19:29:39 -08:00
Carolina Jubran
47bcd9bf3d net/mlx5: Restore missing trace event when enabling vport QoS
Restore the `trace_mlx5_esw_vport_qos_create` event when creating
the vport scheduling element. This trace event was lost during
refactoring.

Fixes: be034baba8 ("net/mlx5: Make vport QoS enablement more flexible for future extensions")
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250225072608.526866-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 19:29:39 -08:00
Carolina Jubran
7f3528f7d2 net/mlx5: Fix vport QoS cleanup on error
When enabling vport QoS fails, the scheduling node was never freed,
causing a leak.

Add the missing free and reset the vport scheduling node pointer to
NULL.

Fixes: be034baba8 ("net/mlx5: Make vport QoS enablement more flexible for future extensions")
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250225072608.526866-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 19:29:39 -08:00
Harshal Chaudhari
2d253726ff net: mvpp2: cls: Fixed Non IP flow, with vlan tag flow defination.
Non IP flow, with vlan tag not working as expected while
running below command for vlan-priority. fixed that.

ethtool -N eth1 flow-type ether vlan 0x8000 vlan-mask 0x1fff action 0 loc 0

Fixes: 1274daede3 ("net: mvpp2: cls: Add steering based on vlan Id and priority.")
Signed-off-by: Harshal Chaudhari <hchaudhari@marvell.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250225042058.2643838-1-hchaudhari@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 19:27:55 -08:00
Adrian Huang
bc23d4e308 af_unix: Fix memory leak in unix_dgram_sendmsg()
After running the 'sendmsg02' program of Linux Test Project (LTP),
kmemleak reports the following memory leak:

  # cat /sys/kernel/debug/kmemleak
  unreferenced object 0xffff888243866800 (size 2048):
    comm "sendmsg02", pid 67, jiffies 4294903166
    hex dump (first 32 bytes):
      00 00 00 00 00 00 00 00 5e 00 00 00 00 00 00 00  ........^.......
      01 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00  ...@............
    backtrace (crc 7e96a3f2):
      kmemleak_alloc+0x56/0x90
      kmem_cache_alloc_noprof+0x209/0x450
      sk_prot_alloc.constprop.0+0x60/0x160
      sk_alloc+0x32/0xc0
      unix_create1+0x67/0x2b0
      unix_create+0x47/0xa0
      __sock_create+0x12e/0x200
      __sys_socket+0x6d/0x100
      __x64_sys_socket+0x1b/0x30
      x64_sys_call+0x7e1/0x2140
      do_syscall_64+0x54/0x110
      entry_SYSCALL_64_after_hwframe+0x76/0x7e

Commit 689c398885 ("af_unix: Defer sock_put() to clean up path in
unix_dgram_sendmsg().") defers sock_put() in the error handling path.
However, it fails to account for the condition 'msg->msg_namelen != 0',
resulting in a memory leak when the code jumps to the 'lookup' label.

Fix issue by calling sock_put() if 'msg->msg_namelen != 0' is met.

Fixes: 689c398885 ("af_unix: Defer sock_put() to clean up path in unix_dgram_sendmsg().")
Signed-off-by: Adrian Huang <ahuang12@lenovo.com>
Acked-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250225021457.1824-1-ahuang12@lenovo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 19:01:36 -08:00
Frederic Weisbecker
77e45145e3 net: Handle napi_schedule() calls from non-interrupt
napi_schedule() is expected to be called either:

* From an interrupt, where raised softirqs are handled on IRQ exit

* From a softirq disabled section, where raised softirqs are handled on
  the next call to local_bh_enable().

* From a softirq handler, where raised softirqs are handled on the next
  round in do_softirq(), or further deferred to a dedicated kthread.

Other bare tasks context may end up ignoring the raised NET_RX vector
until the next random softirq handling opportunity, which may not
happen before a while if the CPU goes idle afterwards with the tick
stopped.

Such "misuses" have been detected on several places thanks to messages
of the kind:

	"NOHZ tick-stop error: local softirq work is pending, handler #08!!!"

For example:

       __raise_softirq_irqoff
        __napi_schedule
        rtl8152_runtime_resume.isra.0
        rtl8152_resume
        usb_resume_interface.isra.0
        usb_resume_both
        __rpm_callback
        rpm_callback
        rpm_resume
        __pm_runtime_resume
        usb_autoresume_device
        usb_remote_wakeup
        hub_event
        process_one_work
        worker_thread
        kthread
        ret_from_fork
        ret_from_fork_asm

And also:

* drivers/net/usb/r8152.c::rtl_work_func_t
* drivers/net/netdevsim/netdev.c::nsim_start_xmit

There is a long history of issues of this kind:

	019edd01d1 ("ath10k: sdio: Add missing BH locking around napi_schdule()")
	3300685893 ("idpf: disable local BH when scheduling napi for marker packets")
	e3d5d70cb4 ("net: lan78xx: fix "softirq work is pending" error")
	e55c27ed9c ("mt76: mt7615: add missing bh-disable around rx napi schedule")
	c0182aa985 ("mt76: mt7915: add missing bh-disable around tx napi enable/schedule")
	970be1dff2 ("mt76: disable BH around napi_schedule() calls")
	019edd01d1 ("ath10k: sdio: Add missing BH locking around napi_schdule()")
	30bfec4fec ("can: rx-offload: can_rx_offload_threaded_irq_finish(): add new  function to be called from threaded interrupt")
	e63052a5dd ("mlx5e: add add missing BH locking around napi_schdule()")
	83a0c6e589 ("i40e: Invoke softirqs after napi_reschedule")
	bd4ce941c8 ("mlx4: Invoke softirqs after napi_reschedule")
	8cf699ec84 ("mlx4: do not call napi_schedule() without care")
	ec13ee8014 ("virtio_net: invoke softirqs after __napi_schedule")

This shows that relying on the caller to arrange a proper context for
the softirqs to be handled while calling napi_schedule() is very fragile
and error prone. Also fixing them can also prove challenging if the
caller may be called from different kinds of contexts.

Therefore fix this from napi_schedule() itself with waking up ksoftirqd
when softirqs are raised from task contexts.

Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reported-by: Jakub Kicinski <kuba@kernel.org>
Reported-by: Francois Romieu <romieu@fr.zoreil.com>
Closes: https://lore.kernel.org/lkml/354a2690-9bbf-4ccb-8769-fa94707a9340@molgen.mpg.de/
Cc: Breno Leitao <leitao@debian.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250223221708.27130-1-frederic@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 18:56:55 -08:00
Mohammad Heib
49806fe6e6 net: Clear old fragment checksum value in napi_reuse_skb
In certain cases, napi_get_frags() returns an skb that points to an old
received fragment, This skb may have its skb->ip_summed, csum, and other
fields set from previous fragment handling.

Some network drivers set skb->ip_summed to either CHECKSUM_COMPLETE or
CHECKSUM_UNNECESSARY when getting skb from napi_get_frags(), while
others only set skb->ip_summed when RX checksum offload is enabled on
the device, and do not set any value for skb->ip_summed when hardware
checksum offload is disabled, assuming that the skb->ip_summed
initiated to zero by napi_reuse_skb, ionic driver for example will
ignore/unset any value for the ip_summed filed if HW checksum offload is
disabled, and if we have a situation where the user disables the
checksum offload during a traffic that could lead to the following
errors shown in the kernel logs:
<IRQ>
dump_stack_lvl+0x34/0x48
 __skb_gro_checksum_complete+0x7e/0x90
tcp6_gro_receive+0xc6/0x190
ipv6_gro_receive+0x1ec/0x430
dev_gro_receive+0x188/0x360
? ionic_rx_clean+0x25a/0x460 [ionic]
napi_gro_frags+0x13c/0x300
? __pfx_ionic_rx_service+0x10/0x10 [ionic]
ionic_rx_service+0x67/0x80 [ionic]
ionic_cq_service+0x58/0x90 [ionic]
ionic_txrx_napi+0x64/0x1b0 [ionic]
 __napi_poll+0x27/0x170
net_rx_action+0x29c/0x370
handle_softirqs+0xce/0x270
__irq_exit_rcu+0xa3/0xc0
common_interrupt+0x80/0xa0
</IRQ>

This inconsistency sometimes leads to checksum validation issues in the
upper layers of the network stack.

To resolve this, this patch clears the skb->ip_summed value for each
reused skb in by napi_reuse_skb(), ensuring that the caller is responsible
for setting the correct checksum status. This eliminates potential
checksum validation issues caused by improper handling of
skb->ip_summed.

Fixes: 76620aafd6 ("gro: New frags interface to avoid copying shinfo")
Signed-off-by: Mohammad Heib <mheib@redhat.com>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250225112852.2507709-1-mheib@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 18:13:35 -08:00
Harshitha Ramamurthy
de70981f29 gve: unlink old napi when stopping a queue using queue API
When a queue is stopped using the ndo queue API, before
destroying its page pool, the associated NAPI instance
needs to be unlinked to avoid warnings.

Handle this by calling page_pool_disable_direct_recycling()
when stopping a queue.

Cc: stable@vger.kernel.org
Fixes: ebdfae0d37 ("gve: adopt page pool for DQ RDA mode")
Reviewed-by: Praveen Kaligineedi <pkaligineedi@google.com>
Signed-off-by: Harshitha Ramamurthy <hramamurthy@google.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250226003526.1546854-1-hramamurthy@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 18:10:28 -08:00
Kuniyuki Iwashima
01c9c123db net: Use rtnl_net_dev_lock() in register_netdevice_notifier_dev_net().
Breno Leitao reported the splat below. [0]

Commit 65161fb544 ("net: Fix dev_net(dev) race in
unregister_netdevice_notifier_dev_net().") added the
DEBUG_NET_WARN_ON_ONCE(), assuming that the netdev is not
registered before register_netdevice_notifier_dev_net().

But the assumption was simply wrong.

Let's use rtnl_net_dev_lock() in register_netdevice_notifier_dev_net().

[0]:
WARNING: CPU: 25 PID: 849 at net/core/dev.c:2150 register_netdevice_notifier_dev_net (net/core/dev.c:2150)
 <TASK>
 ? __warn (kernel/panic.c:242 kernel/panic.c:748)
 ? register_netdevice_notifier_dev_net (net/core/dev.c:2150)
 ? register_netdevice_notifier_dev_net (net/core/dev.c:2150)
 ? report_bug (lib/bug.c:? lib/bug.c:219)
 ? handle_bug (arch/x86/kernel/traps.c:285)
 ? exc_invalid_op (arch/x86/kernel/traps.c:309)
 ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
 ? register_netdevice_notifier_dev_net (net/core/dev.c:2150)
 ? register_netdevice_notifier_dev_net (./include/net/net_namespace.h:406 ./include/linux/netdevice.h:2663 net/core/dev.c:2144)
 mlx5e_mdev_notifier_event+0x9f/0xf0 mlx5_ib
 notifier_call_chain.llvm.12241336988804114627 (kernel/notifier.c:85)
 blocking_notifier_call_chain (kernel/notifier.c:380)
 mlx5_core_uplink_netdev_event_replay (drivers/net/ethernet/mellanox/mlx5/core/main.c:352)
 mlx5_ib_roce_init.llvm.12447516292400117075+0x1c6/0x550 mlx5_ib
 mlx5r_probe+0x375/0x6a0 mlx5_ib
 ? kernfs_put (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-arch-fallback.h:2278 ./include/linux/atomic/atomic-instrumented.h:1384 fs/kernfs/dir.c:557)
 ? auxiliary_match_id (drivers/base/auxiliary.c:174)
 ? mlx5r_mp_remove+0x160/0x160 mlx5_ib
 really_probe (drivers/base/dd.c:? drivers/base/dd.c:658)
 driver_probe_device (drivers/base/dd.c:830)
 __driver_attach (drivers/base/dd.c:1217)
 bus_for_each_dev (drivers/base/bus.c:369)
 ? driver_attach (drivers/base/dd.c:1157)
 bus_add_driver (drivers/base/bus.c:679)
 driver_register (drivers/base/driver.c:249)

Fixes: 7fb1073300 ("net: Hold rtnl_net_lock() in (un)?register_netdevice_notifier_dev_net().")
Reported-by: Breno Leitao <leitao@debian.org>
Closes: https://lore.kernel.org/netdev/20250224-noisy-cordial-roadrunner-fad40c@leitao/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20250225211023.96448-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-26 17:34:36 -08:00
Linus Torvalds
dd83757f6e bcachefs fixes for 6.14-rc5
Couple small ones, the main user visible changes/fixes are:
 
 - Fix a bug where truncate would rarely fail and return 1
 
 - Revert the directory i_size code: this turned out to have a number of
   issues that weren't noticed because the fsck code wasn't correctly
   reporting errors (ouch), and we're late enough in the cycle that it
   can just wait until 6.15.
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Merge tag 'bcachefs-2025-02-26' of git://evilpiepirate.org/bcachefs

Pull bcachefs fixes from Kent Overstreet:
 "A couple small ones, the main user visible changes/fixes are:

   - Fix a bug where truncate would rarely fail and return 1

   - Revert the directory i_size code: this turned out to have a number
     of issues that weren't noticed because the fsck code wasn't
     correctly reporting errors (ouch), and we're late enough in the
     cycle that it can just wait until 6.15"

* tag 'bcachefs-2025-02-26' of git://evilpiepirate.org/bcachefs:
  bcachefs: Fix truncate sometimes failing and returning 1
  bcachefs: Fix deadlock
  bcachefs: Check for -BCH_ERR_open_buckets_empty in journal resize
  bcachefs: Revert directory i_size
  bcachefs: fix bch2_extent_ptr_eq()
  bcachefs: Fix memmove when move keys down
  bcachefs: print op->nonce on data update inconsistency
2025-02-26 16:55:30 -08:00
Kent Overstreet
eb54d2695b bcachefs: Fix truncate sometimes failing and returning 1
__bch_truncate_folio() may return 1 to indicate dirtyness of the folio
being truncated, needed for fpunch to get the i_size writes correct.

But truncate was forgetting to clear ret, and sometimes returning it as
an error.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-02-26 19:31:05 -05:00
Alan Huang
677bdb7346 bcachefs: Fix deadlock
This fixes two deadlocks:

1.pcpu_alloc_mutex involved one as pointed by syzbot[1]
2.recursion deadlock.

The root cause is that we hold the bc lock during alloc_percpu, fix it
by following the pattern used by __btree_node_mem_alloc().

[1] https://lore.kernel.org/all/66f97d9a.050a0220.6bad9.001d.GAE@google.com/T/

Reported-by: syzbot+fe63f377148a6371a9db@syzkaller.appspotmail.com
Tested-by: syzbot+fe63f377148a6371a9db@syzkaller.appspotmail.com
Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-02-26 19:31:05 -05:00
Kent Overstreet
7909d1fb90 bcachefs: Check for -BCH_ERR_open_buckets_empty in journal resize
This fixes occasional failures from journal resize.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-02-26 19:31:05 -05:00
Kent Overstreet
4804f3ac26 bcachefs: Revert directory i_size
This turned out to have several bugs, which were missed because the fsck
code wasn't properly reporting errors - whoops.

Kicking it out for now, hopefully it can make 6.15.

Cc: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-02-26 19:30:38 -05:00
Ryan Roberts
2b1283e1ea arm64/mm: Fix Boot panic on Ampere Altra
When the range of present physical memory is sufficiently small enough
and the reserved address space for the linear map is sufficiently large
enough, The linear map base address is randomized in
arm64_memblock_init().

Prior to commit 62cffa496a ("arm64/mm: Override PARange for !LPA2 and
use it consistently"), we decided if the sizes were suitable with the
help of the raw mmfr0.parange. But the commit changed this to use the
sanitized version instead. But the function runs before the register has
been sanitized so this returns 0, interpreted as a parange of 32 bits.
Some fun wrapping occurs and the logic concludes that there is enough
room to randomize the linear map base address, when really there isn't.
So the top of the linear map ends up outside the reserved address space.

Since the PA range cannot be overridden in the first place, restore the
mmfr0 reading logic to its state prior to 62cffa496a, where the raw
register value is used.

Reported-by: Luiz Capitulino <luizcap@redhat.com>
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Closes: https://lore.kernel.org/all/a3d9acbe-07c2-43b6-9ba9-a7585f770e83@redhat.com/
Fixes: 62cffa496a ("arm64/mm: Override PARange for !LPA2 and use it consistently")
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Link: https://lore.kernel.org/r/20250225114638.2038006-1-ryan.roberts@arm.com
Cc: stable@vger.kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2025-02-27 00:26:49 +00:00
Linus Torvalds
102c16a1f9 SCSI fixes on 20250226
Small ufs fixes and a core change to clear the command private area on
 every retry (which fixes a reported bug in virtio_scsi)
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Small ufs fixes and a core change to clear the command private area on
  every retry (which fixes a reported bug in virtio_scsi)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: bsg: Fix crash when arpmb command fails
  scsi: ufs: core: Set default runtime/system PM levels before ufshcd_hba_init()
  scsi: core: Clear driver private data when retrying request
  scsi: ufs: core: Fix ufshcd_is_ufs_dev_busy() and ufshcd_eh_timed_out()
2025-02-26 15:13:10 -08:00
Shyam Sundar S K
9f3c507cb4 i2c: amd-asf: Fix EOI register write to enable successive interrupts
The commit b1f8921dfb
("i2c: amd-asf: Clear remote IRR bit to get successive interrupt")
introduced a method to enable successive interrupts but inadvertently
omitted the necessary write to the EOI register, resulting in a failure to
receive successive interrupts.

Fix this by adding the required write to the EOI register.

Fixes: b1f8921dfb ("i2c: amd-asf: Clear remote IRR bit to get successive interrupt")
Cc: stable@vger.kernel.org # v6.13+
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Fixes: 9b25419ad3 ("i2c: amd-asf: Add routine to handle the ASF slave process")
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250219135747.3251182-1-Shyam-sundar.S-k@amd.com
2025-02-26 23:28:41 +01:00
Binbin Zhou
71c49ee9bb i2c: ls2x: Fix frequency division register access
According to the chip manual, the I2C register access type of
Loongson-2K2000/LS7A is "B", so we can only access registers in byte
form (readb()/writeb()).

Although Loongson-2K0500/Loongson-2K1000 do not have similar
constraints, register accesses in byte form also behave correctly.

Also, in hardware, the frequency division registers are defined as two
separate registers (high 8-bit and low 8-bit), so we just access them
directly as bytes.

Fixes: 015e61f0bf ("i2c: ls2x: Add driver for Loongson-2K/LS7A I2C controller")
Co-developed-by: Hongliang Wang <wanghongliang@loongson.cn>
Signed-off-by: Hongliang Wang <wanghongliang@loongson.cn>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Cc: stable@vger.kernel.org # v6.3+
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250220125612.1910990-1-zhoubinbin@loongson.cn
2025-02-26 23:23:33 +01:00
Linus Torvalds
f4ce1f3318 workqueue: An update for v6.14-rc4
This contains a patch improve debug visibility. While it isn't a fix, the
 change carries virtually no risk and makes it substantially easier to chase
 down a class of problems.
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Merge tag 'wq-for-6.14-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue update from Tejun Heo:
 "This contains a patch improve debug visibility.

  While it isn't a fix, the change carries virtually no risk and makes
  it substantially easier to chase down a class of problems"

* tag 'wq-for-6.14-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: Log additional details when rejecting work
2025-02-26 14:22:47 -08:00
Tyrone Ting
dd1998e243 i2c: npcm: disable interrupt enable bit before devm_request_irq
The customer reports that there is a soft lockup issue related to
the i2c driver. After checking, the i2c module was doing a tx transfer
and the bmc machine reboots in the middle of the i2c transaction, the i2c
module keeps the status without being reset.

Due to such an i2c module status, the i2c irq handler keeps getting
triggered since the i2c irq handler is registered in the kernel booting
process after the bmc machine is doing a warm rebooting.
The continuous triggering is stopped by the soft lockup watchdog timer.

Disable the interrupt enable bit in the i2c module before calling
devm_request_irq to fix this issue since the i2c relative status bit
is read-only.

Here is the soft lockup log.
[   28.176395] watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [swapper/0:1]
[   28.183351] Modules linked in:
[   28.186407] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.120-yocto-s-dirty-bbebc78 #1
[   28.201174] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   28.208128] pc : __do_softirq+0xb0/0x368
[   28.212055] lr : __do_softirq+0x70/0x368
[   28.215972] sp : ffffff8035ebca00
[   28.219278] x29: ffffff8035ebca00 x28: 0000000000000002 x27: ffffff80071a3780
[   28.226412] x26: ffffffc008bdc000 x25: ffffffc008bcc640 x24: ffffffc008be50c0
[   28.233546] x23: ffffffc00800200c x22: 0000000000000000 x21: 000000000000001b
[   28.240679] x20: 0000000000000000 x19: ffffff80001c3200 x18: ffffffffffffffff
[   28.247812] x17: ffffffc02d2e0000 x16: ffffff8035eb8b40 x15: 00001e8480000000
[   28.254945] x14: 02c3647e37dbfcb6 x13: 02c364f2ab14200c x12: 0000000002c364f2
[   28.262078] x11: 00000000fa83b2da x10: 000000000000b67e x9 : ffffffc008010250
[   28.269211] x8 : 000000009d983d00 x7 : 7fffffffffffffff x6 : 0000036d74732434
[   28.276344] x5 : 00ffffffffffffff x4 : 0000000000000015 x3 : 0000000000000198
[   28.283476] x2 : ffffffc02d2e0000 x1 : 00000000000000e0 x0 : ffffffc008bdcb40
[   28.290611] Call trace:
[   28.293052]  __do_softirq+0xb0/0x368
[   28.296625]  __irq_exit_rcu+0xe0/0x100
[   28.300374]  irq_exit+0x14/0x20
[   28.303513]  handle_domain_irq+0x68/0x90
[   28.307440]  gic_handle_irq+0x78/0xb0
[   28.311098]  call_on_irq_stack+0x20/0x38
[   28.315019]  do_interrupt_handler+0x54/0x5c
[   28.319199]  el1_interrupt+0x2c/0x4c
[   28.322777]  el1h_64_irq_handler+0x14/0x20
[   28.326872]  el1h_64_irq+0x74/0x78
[   28.330269]  __setup_irq+0x454/0x780
[   28.333841]  request_threaded_irq+0xd0/0x1b4
[   28.338107]  devm_request_threaded_irq+0x84/0x100
[   28.342809]  npcm_i2c_probe_bus+0x188/0x3d0
[   28.346990]  platform_probe+0x6c/0xc4
[   28.350653]  really_probe+0xcc/0x45c
[   28.354227]  __driver_probe_device+0x8c/0x160
[   28.358578]  driver_probe_device+0x44/0xe0
[   28.362670]  __driver_attach+0x124/0x1d0
[   28.366589]  bus_for_each_dev+0x7c/0xe0
[   28.370426]  driver_attach+0x28/0x30
[   28.373997]  bus_add_driver+0x124/0x240
[   28.377830]  driver_register+0x7c/0x124
[   28.381662]  __platform_driver_register+0x2c/0x34
[   28.386362]  npcm_i2c_init+0x3c/0x5c
[   28.389937]  do_one_initcall+0x74/0x230
[   28.393768]  kernel_init_freeable+0x24c/0x2b4
[   28.398126]  kernel_init+0x28/0x130
[   28.401614]  ret_from_fork+0x10/0x20
[   28.405189] Kernel panic - not syncing: softlockup: hung tasks
[   28.411011] SMP: stopping secondary CPUs
[   28.414933] Kernel Offset: disabled
[   28.418412] CPU features: 0x00000000,00000802
[   28.427644] Rebooting in 20 seconds..

Fixes: 56a1485b10 ("i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver")
Signed-off-by: Tyrone Ting <kfting@nuvoton.com>
Cc: <stable@vger.kernel.org> # v5.8+
Reviewed-by: Tali Perry <tali.perry1@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250220040029.27596-2-kfting@nuvoton.com
2025-02-26 23:19:30 +01:00
Linus Torvalds
e6d3c4e535 sched_ext: A fix for v6.14-rc4
pick_task_scx() has a workaround to avoid stalling when the fair class's
 balance() says yes but pick_task() says no. The workaround was incorrectly
 deciding to keep the prev taks running if the task is on SCX even when the
 task is in a sleeping state, which can lead to several confusing failure
 modes. Fix it by testing the prev task is currently queued on SCX instead.
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Merge tag 'sched_ext-for-6.14-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fix from Tejun Heo:
 "pick_task_scx() has a workaround to avoid stalling when the fair
  class's balance() says yes but pick_task() says no.

  The workaround was incorrectly deciding to keep the prev taks running
  if the task is on SCX even when the task is in a sleeping state, which
  can lead to several confusing failure modes.

  Fix it by testing the prev task is currently queued on SCX instead"

* tag 'sched_ext-for-6.14-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: Fix pick_task_scx() picking non-queued tasks when it's called without balance()
2025-02-26 14:13:11 -08:00
Linus Torvalds
5394eea106 NFS Client Bugfixes for Linux 6.14-rc
Stable Fixes:
   * O_DIRECT writes should adjust file length
 
 Other Bugfixes:
   * Adjust delegated timestamps for O_DIRECT reads and writes
   * Prevent looping due to rpc_signal_task() races
   * Fix a deadlock when recovering state on a sillyrenamed file
   * Properly handle -ETIMEDOUT errors from tlshd
   * Suppress build warnings for unused procfs functions
   * Fix memory leak of lsm_contexts
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Merge tag 'nfs-for-6.14-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:
 "Stable Fixes:
   - O_DIRECT writes should adjust file length

  Other Bugfixes:
   - Adjust delegated timestamps for O_DIRECT reads and writes
   - Prevent looping due to rpc_signal_task() races
   - Fix a deadlock when recovering state on a sillyrenamed file
   - Properly handle -ETIMEDOUT errors from tlshd
   - Suppress build warnings for unused procfs functions
   - Fix memory leak of lsm_contexts"

* tag 'nfs-for-6.14-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  lsm,nfs: fix memory leak of lsm_context
  sunrpc: suppress warnings for unused procfs functions
  SUNRPC: Handle -ETIMEDOUT return from tlshd
  NFSv4: Fix a deadlock when recovering state on a sillyrenamed file
  SUNRPC: Prevent looping due to rpc_signal_task() races
  NFS: Adjust delegated timestamps for O_DIRECT reads and writes
  NFS: O_DIRECT writes must check and adjust the file length
2025-02-26 12:57:31 -08:00
Linus Torvalds
c0d35086a2 Landlock fix for v6.14-rc5
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Merge tag 'landlock-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock fixes from Mickaël Salaün:
 "Fixes to TCP socket identification, documentation, and tests"

* tag 'landlock-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  selftests/landlock: Add binaries to .gitignore
  selftests/landlock: Test that MPTCP actions are not restricted
  selftests/landlock: Test TCP accesses with protocol=IPPROTO_TCP
  landlock: Fix non-TCP sockets restriction
  landlock: Minor typo and grammar fixes in IPC scoping documentation
  landlock: Fix grammar error
  selftests/landlock: Enable the new CONFIG_AF_UNIX_OOB
2025-02-26 11:55:44 -08:00
Linus Torvalds
d62fdaf51b integrity-v6.14-fix
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Merge tag 'integrity-v6.14-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull integrity fixes from Mimi Zohar:
 "One bugfix and one spelling cleanup. The bug fix restores a
  performance improvement"

* tag 'integrity-v6.14-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  ima: Reset IMA_NONACTION_RULE_FLAGS after post_setattr
  integrity: fix typos and spelling errors
2025-02-26 11:47:19 -08:00
Thomas Zimmermann
01f1d77a26 drm/nouveau: Do not override forced connector status
Keep user-forced connector status even if it cannot be programmed. Same
behavior as for the rest of the drivers.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250114100214.195386-1-tzimmermann@suse.de
2025-02-26 14:18:15 -05:00
Takashi Iwai
fe1544deda ASoC: Fixes for v6.14
More driver specific fixes, the firmware change is part of fixing the
 race conditions in the Cirrus driver.
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Merge tag 'asoc-fix-v6.14-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.14

More driver specific fixes, the firmware change is part of fixing the
race conditions in the Cirrus driver.
2025-02-26 15:00:25 +01:00
Adrien Vergé
c6557ccf80 ALSA: hda/realtek: Fix microphone regression on ASUS N705UD
This fixes a regression introduced a few weeks ago in stable kernels
6.12.14 and 6.13.3. The internal microphone on ASUS Vivobook N705UD /
X705UD laptops is broken: the microphone appears in userspace (e.g.
Gnome settings) but no sound is detected.
I bisected it to commit 3b4309546b ("ALSA: hda: Fix headset detection
failure due to unstable sort").

I figured out the cause:
1. The initial pins enabled for the ALC256 driver are:
       cfg->inputs == {
         { pin=0x19, type=AUTO_PIN_MIC,
           is_headset_mic=1, is_headphone_mic=0, has_boost_on_pin=1 },
         { pin=0x1a, type=AUTO_PIN_MIC,
           is_headset_mic=0, is_headphone_mic=0, has_boost_on_pin=1 } }
2. Since 2017 and commits c1732ede5e ("ALSA: hda/realtek - Fix headset
   and mic on several ASUS laptops with ALC256") and 28e8af8a16 ("ALSA:
   hda/realtek: Fix mic and headset jack sense on ASUS X705UD"), the
   quirk ALC256_FIXUP_ASUS_MIC is also applied to ASUS X705UD / N705UD
   laptops.
   This added another internal microphone on pin 0x13:
       cfg->inputs == {
         { pin=0x13, type=AUTO_PIN_MIC,
           is_headset_mic=0, is_headphone_mic=0, has_boost_on_pin=1 },
         { pin=0x19, type=AUTO_PIN_MIC,
           is_headset_mic=1, is_headphone_mic=0, has_boost_on_pin=1 },
         { pin=0x1a, type=AUTO_PIN_MIC,
           is_headset_mic=0, is_headphone_mic=0, has_boost_on_pin=1 } }
   I don't know what this pin 0x13 corresponds to. To the best of my
   knowledge, these laptops have only one internal microphone.
3. Before 2025 and commit 3b4309546b ("ALSA: hda: Fix headset
   detection failure due to unstable sort"), the sort function would let
   the microphone of pin 0x1a (the working one) *before* the microphone
   of pin 0x13 (the phantom one).
4. After this commit 3b4309546b, the fixed sort function puts the
   working microphone (pin 0x1a) *after* the phantom one (pin 0x13). As
   a result, no sound is detected anymore.

It looks like the quirk ALC256_FIXUP_ASUS_MIC is not needed anymore for
ASUS Vivobook X705UD / N705UD laptops. Without it, everything works
fine:
- the internal microphone is detected and records actual sound,
- plugging in a jack headset is detected and can record actual sound
  with it,
- unplugging the jack headset makes the system go back to internal
  microphone and can record actual sound.

Cc: stable@vger.kernel.org
Cc: Kuan-Wei Chiu <visitorckw@gmail.com>
Cc: Chris Chiu <chris.chiu@canonical.com>
Fixes: 3b4309546b ("ALSA: hda: Fix headset detection failure due to unstable sort")
Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
Link: https://patch.msgid.link/20250226135515.24219-1-adrienverge@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-02-26 14:58:39 +01:00
Imre Deak
16fef33fdb
drm/i915/dp_mst: Fix encoder HW state readout for UHBR MST
The encoder HW/SW state verification should use a SW state which stays
unchanged while the encoder/output is active. The intel_dp::is_mst flag
used during state computation to choose between the DP SST/MST modes can
change while the output is active, if the sink gets disconnected or the
MST topology is removed for another reason. A subsequent state
verification using intel_dp::is_mst leads then to a mismatch if the
output is disabled/re-enabled without recomputing its state.

Use the encoder's active MST link count instead, which will be always
non-zero for an active MST output and will be zero for SST.

Fixes: 35d2e4b756 ("drm/i915/ddi: start distinguishing 128b/132b SST and MST at state readout")
Fixes: 40d489fac0 ("drm/i915/ddi: handle 128b/132b SST in intel_ddi_read_func_ctl()")
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250224093242.1859583-1-imre.deak@intel.com
(cherry picked from commit 0159e31177)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-02-26 08:16:23 -05:00
Tejas Upadhyay
12c2f962fe
drm/xe: cancel pending job timer before freeing scheduler
The async call to __guc_exec_queue_fini_async frees the scheduler
while a submission may time out and restart. To prevent this race
condition, the pending job timer should be canceled before freeing
the scheduler.

V3(MattB):
 - Adjust position of cancel pending job
 - Remove gitlab issue# from commit message
V2(MattB):
 - Cancel pending jobs before scheduler finish

Fixes: a20c75dba1 ("drm/xe: Call __guc_exec_queue_fini_async direct for KERNEL exec_queues")
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250225045754.600905-1-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
(cherry picked from commit 18fbd567e7)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-02-26 08:16:21 -05:00
Mingcong Bai
f2ba0cf1ca
drm/xe/regs: remove a duplicate definition for RING_CTL_SIZE(size)
Commit b79e8fd954 ("drm/xe: Remove dependency on intel_engine_regs.h")
introduced an internal set of engine registers, however, as part of this
change, it has also introduced two duplicate `define' lines for
`RING_CTL_SIZE(size)'. This commit was introduced to the tree in v6.8-rc1.

While this is harmless as the definitions did not change, so no compiler
warning was observed.

Drop this line anyway for the sake of correctness.

Cc: stable@vger.kernel.org # v6.8-rc1+
Fixes: b79e8fd954 ("drm/xe: Remove dependency on intel_engine_regs.h")
Signed-off-by: Mingcong Bai <jeffbai@aosc.io>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250225073104.865230-1-jeffbai@aosc.io
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 6b68c4542f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-02-26 08:16:14 -05:00