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Prior to this patch in case mlx5_core_destroy_cq() failed it returns
without completing all destroy operations and that leads to memory leak.
Instead, complete the destroy flow before return error.
Also move mlx5_debug_cq_remove() to the beginning of mlx5_core_destroy_cq()
to be symmetrical with mlx5_core_create_cq().
kmemleak complains on:
unreferenced object 0xc000000038625100 (size 64):
comm "ethtool", pid 28301, jiffies 4298062946 (age 785.380s)
hex dump (first 32 bytes):
60 01 48 94 00 00 00 c0 b8 05 34 c3 00 00 00 c0 `.H.......4.....
02 00 00 00 00 00 00 00 00 db 7d c1 00 00 00 c0 ..........}.....
backtrace:
[<000000009e8643cb>] add_res_tree+0xd0/0x270 [mlx5_core]
[<00000000e7cb8e6c>] mlx5_debug_cq_add+0x5c/0xc0 [mlx5_core]
[<000000002a12918f>] mlx5_core_create_cq+0x1d0/0x2d0 [mlx5_core]
[<00000000cef0a696>] mlx5e_create_cq+0x210/0x3f0 [mlx5_core]
[<000000009c642c26>] mlx5e_open_cq+0xb4/0x130 [mlx5_core]
[<0000000058dfa578>] mlx5e_ptp_open+0x7f4/0xe10 [mlx5_core]
[<0000000081839561>] mlx5e_open_channels+0x9cc/0x13e0 [mlx5_core]
[<0000000009cf05d4>] mlx5e_switch_priv_channels+0xa4/0x230
[mlx5_core]
[<0000000042bbedd8>] mlx5e_safe_switch_params+0x14c/0x300
[mlx5_core]
[<0000000004bc9db8>] set_pflag_tx_port_ts+0x9c/0x160 [mlx5_core]
[<00000000a0553443>] mlx5e_set_priv_flags+0xd0/0x1b0 [mlx5_core]
[<00000000a8f3d84b>] ethnl_set_privflags+0x234/0x2d0
[<00000000fd27f27c>] genl_family_rcv_msg_doit+0x108/0x1d0
[<00000000f495e2bb>] genl_family_rcv_msg+0xe4/0x1f0
[<00000000646c5c2c>] genl_rcv_msg+0x78/0x120
[<00000000d53e384e>] netlink_rcv_skb+0x74/0x1a0
Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Valentine Fatiev <[email protected]>
Reviewed-by: Moshe Shemesh <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Do not allow configurations of MQPRIO channel mode that do not
fully define and utilize the channels txqs.
Fixes: ec60c4581bd9 ("net/mlx5e: Support MQPRIO channel mode")
Signed-off-by: Tariq Toukan <[email protected]>
Reviewed-by: Maxim Mikityanskiy <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Currently, bridge cleanup is calling to cancel_delayed_work(). When this
function is finished, there is a chance that the delayed work is still
running. Also, the delayed work is queueing itself.
As a result, we might execute the delayed work after the bridge cleanup
have finished and hit a null-ptr oops[1].
Fix it by using cancel_delayed_work_sync(), which is waiting until the
work is done and will cancel the queue work.
[1]
[ 8202.143043 ] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 8202.144438 ] #PF: supervisor write access in kernel mode
[ 8202.145476 ] #PF: error_code(0x0002) - not-present page
[ 8202.146520 ] PGD 0 P4D 0
[ 8202.147126 ] Oops: 0002 [#1] SMP NOPTI
[ 8202.147899 ] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.14.0-rc6_for_upstream_min_debug_2021_08_25_16_06 #1
[ 8202.149741 ] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 8202.151908 ] RIP: 0010:_raw_spin_lock+0xc/0x20
[ 8202.156234 ] RSP: 0018:ffff88846f885ea0 EFLAGS: 00010046
[ 8202.157289 ] RAX: 0000000000000000 RBX: ffff88846f880000 RCX: 0000000000000000
[ 8202.158731 ] RDX: 0000000000000001 RSI: ffff8881004000c8 RDI: 0000000000000000
[ 8202.160177 ] RBP: ffff8881fe684978 R08: ffff888100140000 R09: ffffffff824455b8
[ 8202.161569 ] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 8202.163004 ] R13: 0000000000000012 R14: 0000000000000200 R15: ffff88812992d000
[ 8202.164018 ] FS: 0000000000000000(0000) GS:ffff88846f880000(0000) knlGS:0000000000000000
[ 8202.164960 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8202.165634 ] CR2: 0000000000000000 CR3: 0000000108cac004 CR4: 0000000000370ea0
[ 8202.166450 ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8202.167807 ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 8202.168852 ] Call Trace:
[ 8202.169421 ] <IRQ>
[ 8202.169792 ] __queue_work+0xf2/0x3d0
[ 8202.170481 ] ? queue_work_node+0x40/0x40
[ 8202.171270 ] call_timer_fn+0x2b/0x100
[ 8202.171932 ] __run_timers.part.0+0x152/0x220
[ 8202.172717 ] ? __hrtimer_run_queues+0x171/0x290
[ 8202.173526 ] ? kvm_clock_get_cycles+0xd/0x10
[ 8202.174232 ] ? ktime_get+0x35/0x90
[ 8202.174943 ] run_timer_softirq+0x26/0x50
[ 8202.175745 ] __do_softirq+0xc7/0x271
[ 8202.176373 ] irq_exit_rcu+0x93/0xb0
[ 8202.176983 ] sysvec_apic_timer_interrupt+0x72/0x90
[ 8202.177755 ] </IRQ>
[ 8202.178245 ] asm_sysvec_apic_timer_interrupt+0x12/0x20
Fixes: c636a0f0f3f0 ("net/mlx5: Bridge, dynamic entry ageing")
Signed-off-by: Shay Drory <[email protected]>
Reviewed-by: Vlad Buslov <[email protected]>
Reviewed-by: Leon Romanovsky <[email protected]>
Reviewed-by: Maor Gottlieb <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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The device advertises 8 formats, but only a rate of 48kHz is honored
by the hardware and 24 bits give chopped audio, so only report the
one working combination. This fixes out-of-the-box audio experience
with PipeWire which otherwise attempts to choose S24_3LE (while
PulseAudio defaulted to S16_LE).
Signed-off-by: Jonas Hahnfeld <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Fix CMA gigantic page order for 16K/64K page sizes
- Fix section mismatch error in drivers/acpi/arm64/gtdt.c
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
acpi/arm64: fix next_platform_timer() section mismatch error
arm64/hugetlb: fix CMA gigantic page order for non-4K PAGE_SIZE
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"A second (small) set of pdx86 bug-fixes and new hardware ids for 5.15"
* tag 'platform-drivers-x86-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: int1092: Fix non sequential device mode handling
platform/x86: intel_skl_int3472: Correct null check
platform/x86: gigabyte-wmi: add support for B550 AORUS ELITE AX V2
platform/x86: amd-pmc: Add alternative acpi id for PMC controller
platform/x86: intel_scu_ipc: Update timeout value in comment
platform/x86: intel_scu_ipc: Increase virtual timeout to 10s
platform/x86: intel_scu_ipc: Fix busy loop expiry time
platform/x86: dell: Make DELL_WMI_PRIVACY depend on DELL_WMI
platform/mellanox: mlxreg-io: Fix read access of n-bytes size attributes
platform/mellanox: mlxreg-io: Fix argument base in kstrtou32() call
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Fix modpost Section mismatch error in next_platform_timer().
[...]
WARNING: modpost: vmlinux.o(.text.unlikely+0x26e60): Section mismatch in reference from the function next_platform_timer() to the variable .init.data:acpi_gtdt_desc
The function next_platform_timer() references
the variable __initdata acpi_gtdt_desc.
This is often because next_platform_timer lacks a __initdata
annotation or the annotation of acpi_gtdt_desc is wrong.
WARNING: modpost: vmlinux.o(.text.unlikely+0x26e64): Section mismatch in reference from the function next_platform_timer() to the variable .init.data:acpi_gtdt_desc
The function next_platform_timer() references
the variable __initdata acpi_gtdt_desc.
This is often because next_platform_timer lacks a __initdata
annotation or the annotation of acpi_gtdt_desc is wrong.
ERROR: modpost: Section mismatches detected.
Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
make[1]: *** [scripts/Makefile.modpost:59: vmlinux.symvers] Error 1
make[1]: *** Deleting file 'vmlinux.symvers'
make: *** [Makefile:1176: vmlinux] Error 2
[...]
Fixes: a712c3ed9b8a ("acpi/arm64: Add memory-mapped timer support in GTDT driver")
Signed-off-by: Jackie Liu <[email protected]>
Acked-by: Hanjun Guo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
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The snd_hdac_bus_reset_link() contains logic to clear STATESTS register
before performing controller reset. This code dates back to an old
bugfix in commit e8a7f136f5ed ("[ALSA] hda-intel - Improve HD-audio
codec probing robustness"). Originally the code was added to
azx_reset().
The code was moved around in commit a41d122449be ("ALSA: hda - Embed bus
into controller object") and ended up to snd_hdac_bus_reset_link() and
called primarily via snd_hdac_bus_init_chip().
The logic to clear STATESTS is correct when snd_hdac_bus_init_chip() is
called when controller is not in reset. In this case, STATESTS can be
cleared. This can be useful e.g. when forcing a controller reset to retry
codec probe. A normal non-power-on reset will not clear the bits.
However, this old logic is problematic when controller is already in
reset. The HDA specification states that controller must be taken out of
reset before writing to registers other than GCTL.CRST (1.0a spec,
3.3.7). The write to STATESTS in snd_hdac_bus_reset_link() will be lost
if the controller is already in reset per the HDA specification mentioned.
This has been harmless on older hardware. On newer generation of Intel
PCIe based HDA controllers, if configured to report issues, this write
will emit an unsupported request error. If ACPI Platform Error Interface
(APEI) is enabled in kernel, this will end up to kernel log.
Fix the code in snd_hdac_bus_reset_link() to only clear the STATESTS if
the function is called when controller is not in reset. Otherwise
clearing the bits is not possible and should be skipped.
Signed-off-by: Kai Vehmanen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
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Check for potential NULL pointers.
Print error message if found.
Thread, that leads to this commit:
https://lore.kernel.org/ntfs3/[email protected]/
Reported-by: Mohammad Rasim <[email protected]>
Signed-off-by: Konstantin Komarov <[email protected]>
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We need to define the codec pin 0x1b to be the mic, but somehow
the mic doesn't support hot plugging detection, and Windows also has
this issue, so we set it to phantom headset-mic.
Also the determine_headset_type() often returns the omtp type by a
mistake when we plug a ctia headset, this makes the mic can't record
sound at all. Because most of the headset are ctia type nowadays and
some machines have the fixed ctia type audio jack, it is possible this
machine has the fixed ctia jack too. Here we set this mic jack to
fixed ctia type, this could avoid the mic type detection mistake and
make the ctia headset work stable.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214537
Reported-and-tested-by: msd <[email protected]>
Cc: <[email protected]>
Signed-off-by: Hui Wang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
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Commit 4dd0d5c33c3e ("ice: add lock around Tx timestamp tracker flush")
added a lock around the Tx timestamp tracker flow which is used to
cleanup any left over SKBs and prepare for device removal.
This lock is problematic because it is being held around a call to
ice_clear_phy_tstamp. The clear function takes a mutex to send a PHY
write command to firmware. This could lead to a deadlock if the mutex
actually sleeps, and causes the following warning on a kernel with
preemption debugging enabled:
[ 715.419426] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:573
[ 715.427900] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3100, name: rmmod
[ 715.435652] INFO: lockdep is turned off.
[ 715.439591] Preemption disabled at:
[ 715.439594] [<0000000000000000>] 0x0
[ 715.446678] CPU: 52 PID: 3100 Comm: rmmod Tainted: G W OE 5.15.0-rc4+ #42 bdd7ec3018e725f159ca0d372ce8c2c0e784891c
[ 715.458058] Hardware name: Intel Corporation S2600STQ/S2600STQ, BIOS SE5C620.86B.02.01.0010.010620200716 01/06/2020
[ 715.468483] Call Trace:
[ 715.470940] dump_stack_lvl+0x6a/0x9a
[ 715.474613] ___might_sleep.cold+0x224/0x26a
[ 715.478895] __mutex_lock+0xb3/0x1440
[ 715.482569] ? stack_depot_save+0x378/0x500
[ 715.486763] ? ice_sq_send_cmd+0x78/0x14c0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.494979] ? kfree+0xc1/0x520
[ 715.498128] ? mutex_lock_io_nested+0x12a0/0x12a0
[ 715.502837] ? kasan_set_free_info+0x20/0x30
[ 715.507110] ? __kasan_slab_free+0x10b/0x140
[ 715.511385] ? slab_free_freelist_hook+0xc7/0x220
[ 715.516092] ? kfree+0xc1/0x520
[ 715.519235] ? ice_deinit_lag+0x16c/0x220 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.527359] ? ice_remove+0x1cf/0x6a0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.535133] ? pci_device_remove+0xab/0x1d0
[ 715.539318] ? __device_release_driver+0x35b/0x690
[ 715.544110] ? driver_detach+0x214/0x2f0
[ 715.548035] ? bus_remove_driver+0x11d/0x2f0
[ 715.552309] ? pci_unregister_driver+0x26/0x250
[ 715.556840] ? ice_module_exit+0xc/0x2f [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.564799] ? __do_sys_delete_module.constprop.0+0x2d8/0x4e0
[ 715.570554] ? do_syscall_64+0x3b/0x90
[ 715.574303] ? entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 715.579529] ? start_flush_work+0x542/0x8f0
[ 715.583719] ? ice_sq_send_cmd+0x78/0x14c0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.591923] ice_sq_send_cmd+0x78/0x14c0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.599960] ? wait_for_completion_io+0x250/0x250
[ 715.604662] ? lock_acquire+0x196/0x200
[ 715.608504] ? do_raw_spin_trylock+0xa5/0x160
[ 715.612864] ice_sbq_rw_reg+0x1e6/0x2f0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.620813] ? ice_reset+0x130/0x130 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.628497] ? __debug_check_no_obj_freed+0x1e8/0x3c0
[ 715.633550] ? trace_hardirqs_on+0x1c/0x130
[ 715.637748] ice_write_phy_reg_e810+0x70/0xf0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.646220] ? do_raw_spin_trylock+0xa5/0x160
[ 715.650581] ? ice_ptp_release+0x910/0x910 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.658797] ? ice_ptp_release+0x255/0x910 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.667013] ice_clear_phy_tstamp+0x2c/0x110 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.675403] ice_ptp_release+0x408/0x910 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.683440] ice_remove+0x560/0x6a0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.691037] ? _raw_spin_unlock_irqrestore+0x46/0x73
[ 715.696005] pci_device_remove+0xab/0x1d0
[ 715.700018] __device_release_driver+0x35b/0x690
[ 715.704637] driver_detach+0x214/0x2f0
[ 715.708389] bus_remove_driver+0x11d/0x2f0
[ 715.712489] pci_unregister_driver+0x26/0x250
[ 715.716857] ice_module_exit+0xc/0x2f [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[ 715.724637] __do_sys_delete_module.constprop.0+0x2d8/0x4e0
[ 715.730210] ? free_module+0x6d0/0x6d0
[ 715.733963] ? task_work_run+0xe1/0x170
[ 715.737803] ? exit_to_user_mode_loop+0x17f/0x1d0
[ 715.742509] ? rcu_read_lock_sched_held+0x12/0x80
[ 715.747215] ? trace_hardirqs_on+0x1c/0x130
[ 715.751401] do_syscall_64+0x3b/0x90
[ 715.754981] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 715.760033] RIP: 0033:0x7f4dfe59000b
[ 715.763612] Code: 73 01 c3 48 8b 0d 6d 1e 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d 1e 0c 00 f7 d8 64 89 01 48
[ 715.782357] RSP: 002b:00007ffe8c891708 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[ 715.789923] RAX: ffffffffffffffda RBX: 00005558a20468b0 RCX: 00007f4dfe59000b
[ 715.797054] RDX: 000000000000000a RSI: 0000000000000800 RDI: 00005558a2046918
[ 715.804189] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 715.811319] R10: 00007f4dfe603ac0 R11: 0000000000000206 R12: 00007ffe8c891940
[ 715.818455] R13: 00007ffe8c8920a3 R14: 00005558a20462a0 R15: 00005558a20468b0
Notice that this is the only case where we use the lock in this way. In
the cleanup kthread and work kthread the lock is only taken around the
bit accesses. This was done intentionally to avoid this kind of issue.
The way the lock is used, we only protect ordering of bit sets vs bit
clears. The Tx writers in the hot path don't need to be protected
against the entire kthread loop. The Tx queues threads only need to
ensure that they do not re-use an index that is currently in use. The
cleanup loop does not need to block all new set bits, since it will
re-queue itself if new timestamps are present.
Fix the tracker flow so that it uses the same flow as the standard
cleanup thread. In addition, ensure the in_use bitmap actually gets
cleared properly.
This fixes the warning and also avoids the potential deadlock that might
have occurred otherwise.
Fixes: 4dd0d5c33c3e ("ice: add lock around Tx timestamp tracker flush")
Signed-off-by: Jacob Keller <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Justin Iurman says:
====================
Correct the IOAM behavior for undefined trace type bits
(@Jakub @David: there will be a conflict for #2 when merging net->net-next, due
to commit [1]. The conflict is only 5-10 lines for #2 (#1 should be fine) inside
the file tools/testing/selftests/net/ioam6.sh, so quite short though possibly
ugly. Sorry for that, I didn't expect to post this one... Had I known, I'd have
made the opposite.)
Modify both the input and output behaviors regarding the trace type when one of
the undefined bits is set. The goal is to keep the interoperability when new
fields (aka new bits inside the range 12-21) will be defined.
The draft [2] says the following:
---------------------------------------------------------------
"Bit 12-21 Undefined. These values are available for future
assignment in the IOAM Trace-Type Registry (Section 8.2).
Every future node data field corresponding to one of
these bits MUST be 4-octets long. An IOAM encapsulating
node MUST set the value of each undefined bit to 0. If
an IOAM transit node receives a packet with one or more
of these bits set to 1, it MUST either:
1. Add corresponding node data filled with the reserved
value 0xFFFFFFFF, after the node data fields for the
IOAM-Trace-Type bits defined above, such that the
total node data added by this node in units of
4-octets is equal to NodeLen, or
2. Not add any node data fields to the packet, even for
the IOAM-Trace-Type bits defined above."
---------------------------------------------------------------
The output behavior has been modified to respect the fact that "an IOAM encap
node MUST set the value of each undefined bit to 0" (i.e., undefined bits can't
be set anymore).
As for the input behavior, current implementation is based on the second choice
(i.e., "not add any data fields to the packet [...]"). With this solution, any
interoperability is lost (i.e., if a new bit is defined, then an "old" kernel
implementation wouldn't fill IOAM data when such new bit is set inside the trace
type).
The input behavior is therefore relaxed and these undefined bits are now allowed
to be set. It is only possible thanks to the sentence "every future node data
field corresponding to one of these bits MUST be 4-octets long". Indeed, the
default empty value (the one for 4-octet fields) is inserted whenever an
undefined bit is set.
[1] cfbe9b002109621bf9a282a4a24f9415ef14b57b
[2] https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-data#section-5.4.1
====================
Signed-off-by: David S. Miller <[email protected]>
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The output behavior for undefined bits is now directly tested inside the bash
script. Trying to set an undefined bit should be refused.
The input behavior for undefined bits has been removed due to the fact that we
would need another sender allowed to set undefined bits.
Signed-off-by: Justin Iurman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The check for undefined bits in the trace type is moved from the input side to
the output side, while the input side is relaxed and now inserts default empty
values when an undefined bit is set.
Signed-off-by: Justin Iurman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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When the ksz module is installed and removed using rmmod, kernel crashes
with null pointer dereferrence error. During rmmod, ksz_switch_remove
function tries to cancel the mib_read_workqueue using
cancel_delayed_work_sync routine and unregister switch from dsa.
During dsa_unregister_switch it calls ksz_mac_link_down, which in turn
reschedules the workqueue since mib_interval is non-zero.
Due to which queue executed after mib_interval and it tries to access
dp->slave. But the slave is unregistered in the ksz_switch_remove
function. Hence kernel crashes.
To avoid this crash, before canceling the workqueue, resetted the
mib_interval to 0.
v1 -> v2:
-Removed the if condition in ksz_mib_read_work
Fixes: 469b390e1ba3 ("net: dsa: microchip: use delayed_work instead of timer + work")
Signed-off-by: Arun Ramadoss <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Fix the following build/link errors by adding a dependency on
CRYPTO, CRYPTO_HASH, CRYPTO_SHA256 and CRC32:
ld: drivers/net/usb/r8152.o: in function `rtl8152_fw_verify_checksum':
r8152.c:(.text+0x2b2a): undefined reference to `crypto_alloc_shash'
ld: r8152.c:(.text+0x2bed): undefined reference to `crypto_shash_digest'
ld: r8152.c:(.text+0x2c50): undefined reference to `crypto_destroy_tfm'
ld: drivers/net/usb/r8152.o: in function `_rtl8152_set_rx_mode':
r8152.c:(.text+0xdcb0): undefined reference to `crc32_le'
Fixes: 9370f2d05a2a1 ("r8152: support request_firmware for RTL8153")
Fixes: ac718b69301c7 ("net/usb: new driver for RTL8152")
Signed-off-by: Vegard Nossum <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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mv88e6xxx_port_ppu_updates() interpretes data in the PORT_STS
register incorrectly for internal ports (ie no PPU). In these
cases, the PHY_DETECT bit indicates link status. This results
in forcing the MAC state whenever the PHY link goes down which
is not intended. As a side effect, LED's configured to show
link status stay lit even though the physical link is down.
Add a check in mac_link_down and mac_link_up to see if it
concerns an external port and only then, look at PPU status.
Fixes: 5d5b231da7ac (net: dsa: mv88e6xxx: use PHY_DETECT in mac_link_up/mac_link_down)
Reported-by: Maarten Zanders <[email protected]>
Reviewed-by: Maxime Chevallier <[email protected]>
Signed-off-by: Maarten Zanders <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Fix the following coccicheck warning:
drivers/net/ethernet/mscc/ocelot.c:474:duplicated argument to & or |
drivers/net/ethernet/mscc/ocelot.c:476:duplicated argument to & or |
drivers/net/ethernet/mscc/ocelot_net.c:1627:duplicated argument
to & or |
These DEV_CLOCK_CFG_MAC_TX_RST are duplicate here.
Here should be DEV_CLOCK_CFG_MAC_RX_RST.
Fixes: e6e12df625f2 ("net: mscc: ocelot: convert to phylink")
Signed-off-by: Wan Jiabing <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Then name of this protocol changed in commit 94531cfcbe79 ("af_unix: Add
unix_stream_proto for sockmap") because that commit added stream support
to the af_unix protocol. Renaming the existing protocol makes a ChromeOS
protocol test[1] fail now that the name has changed in
/proc/net/protocols from "UNIX" to "UNIX-DGRAM".
Let's put the name back to how it was while keeping the stream protocol
as "UNIX-STREAM" so that the procfs interface doesn't change. This fixes
the test and maintains backwards compatibility in proc.
Cc: Jiang Wang <[email protected]>
Cc: Andrii Nakryiko <[email protected]>
Cc: Cong Wang <[email protected]>
Cc: Jakub Sitnicki <[email protected]>
Cc: John Fastabend <[email protected]>
Cc: Dmitry Osipenko <[email protected]>
Link: https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/platform/tast-tests/src/chromiumos/tast/local/bundles/cros/network/supported_protocols.go;l=50;drc=e8b1c3f94cb40a054f4aa1ef1aff61e75dc38f18 [1]
Fixes: 94531cfcbe79 ("af_unix: Add unix_stream_proto for sockmap")
Signed-off-by: Stephen Boyd <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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https://gitlab.freedesktop.org/drm/msm into drm-fixes
* Fix a new crash on dev file close if the dev file was opened when
GPU is not loaded (such as missing fw in initrd)
* Switch to single drm_sched_entity per priority level per drm_file
to unbreak multi-context userspace
* Serialize GMU access to fix GMU OOB errors
* Various error path fixes
* A couple integer overflow fixes
* Fix mdp5 cursor plane WARNs
Signed-off-by: Dave Airlie <[email protected]>
From: Rob Clark <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGtD4u7yyiy+BQLmibUCbn=AdDRu7FrmdViHVx0QrcGf8g@mail.gmail.com
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This disables a lock which wasn't enabled and it does not disable
the first lock in the array.
Fixes: 6e0eb52eba9e ("drm/msm/dsi: Parse bus clocks from a list")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/20211001123409.GG2283@kili
Signed-off-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Rob Clark <[email protected]>
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Return an error code if msm_dsi_manager_validate_current_config().
Don't return success.
Fixes: 8b03ad30e314 ("drm/msm/dsi: Use one connector for dual DSI mode")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/20211001123308.GF2283@kili
Signed-off-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Rob Clark <[email protected]>
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The downstream driver models this PLL lock check as an if-elseif-else.
The only way to reach the else case where pll_locked=true [1] is by
succeeding both readl_poll_timeout_atomic calls (which return zero on
success) in the if _and_ elseif condition. Hence both the "lock" and
"ready" bit need to be tested in the SM_READY_STATUS register before
considering the PLL locked and ready to go.
Tested on the Sony Xperia XA2 Ultra (nile-discovery, sdm630).
[1]: https://source.codeaurora.org/quic/la/kernel/msm-4.19/tree/drivers/clk/qcom/mdss/mdss-dsi-pll-14nm-util.c?h=LA.UM.9.2.1.r1-08000-sdm660.0#n302
Fixes: f079f6d999cb ("drm/msm/dsi: Add PHY/PLL for 8x96")
Signed-off-by: Marijn Suijten <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Rob Clark <[email protected]>
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The commit 9f91f22aafcd ("drm/msm/dsi: remove duplicate fields from
dsi_pll_Nnm instances") mistakenly changed registered clock names. While
the platform is in progress of migration to using clock properties in
the dts rather than the global clock names, we should provide backwards
compatibility. Thus restore registerd global clock names.
Fixes: 9f91f22aafcd ("drm/msm/dsi: remove duplicate fields from dsi_pll_Nnm instances")
Signed-off-by: Dmitry Baryshkov <[email protected]>
Reviewed-by: Abhinav Kumar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Rob Clark <[email protected]>
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Both PINGPONG4 and PINGPONG5 IRQ registers are using the
same address, which is incorrect. PINGPONG4 should use the
register offset 30, and PINGPONG5 should use the register
offset 31 according to the downstream driver.
Fixes: 667e9985ee24 ("drm/msm/dpu: replace IRQ lookup with the data in hw catalog")
Signed-off-by: Robert Foss <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Rob Clark <[email protected]>
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Since commit 98659487b845 ("drm/msm: add support to take dpu snapshot")
the following NULL pointer dereference is seen on i.MX53:
[ 3.275493] msm msm: bound 30000000.gpu (ops a3xx_ops)
[ 3.287174] [drm] Initialized msm 1.8.0 20130625 for msm on minor 0
[ 3.293915] 8<--- cut here ---
[ 3.297012] Unable to handle kernel NULL pointer dereference at virtual address 00000028
[ 3.305244] pgd = (ptrval)
[ 3.307989] [00000028] *pgd=00000000
[ 3.311624] Internal error: Oops: 805 [#1] SMP ARM
[ 3.316430] Modules linked in:
[ 3.319503] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.14.0+g682d702b426b #1
[ 3.326652] Hardware name: Freescale i.MX53 (Device Tree Support)
[ 3.332754] PC is at __mutex_init+0x14/0x54
[ 3.336969] LR is at msm_disp_snapshot_init+0x24/0xa0
i.MX53 does not use the DPU controller.
Fix the problem by only calling msm_disp_snapshot_init() on platforms that
use the DPU controller.
Cc: [email protected]
Fixes: 98659487b845 ("drm/msm: add support to take dpu snapshot")
Signed-off-by: Fabio Estevam <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Clark <[email protected]>
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These error paths returned 1 on failure, instead of a negative error
code. This would lead to an Oops in the caller. A second problem is
that the check for "if (ret != -ENODATA)" did not work because "ret" was
set to 1.
Fixes: 5785dd7a8ef0 ("drm/msm: Fix duplicate gpu node in icc summary")
Signed-off-by: Dan Carpenter <[email protected]>
Link: https://lore.kernel.org/r/20211001125904.GK2283@kili
Signed-off-by: Rob Clark <[email protected]>
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This code returns 1 on error instead of a negative error. It leads to
an Oops in the caller. A second problem is that the check for
"if (ret != -ENODATA)" cannot be true because "ret" is set to 1.
Fixes: 5785dd7a8ef0 ("drm/msm: Fix duplicate gpu node in icc summary")
Signed-off-by: Dan Carpenter <[email protected]>
Link: https://lore.kernel.org/r/20211001125759.GJ2283@kili
Signed-off-by: Rob Clark <[email protected]>
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The initialization of pointer dev dereferences pointer edp before
edp is null checked, so there is a potential null pointer deference
issue. Fix this by only dereferencing edp after edp has been null
checked.
Addresses-Coverity: ("Dereference before null check")
Fixes: ab5b0107ccf3 ("drm/msm: Initial add eDP support in msm drm driver (v5)")
Signed-off-by: Colin Ian King <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Clark <[email protected]>
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Since f35a2a99100f ("drm/encoder: make encoder control functions
optional") drm_mode_config_validate would print warnings if both cursor
plane and cursor functions are provided. Restore separate set of
drm_crtc_funcs to be used if separate cursor plane is provided.
[ 6.556046] ------------[ cut here ]------------
[ 6.556071] [CRTC:93:crtc-0] must not have both a cursor plane and a cursor_set func
[ 6.556091] WARNING: CPU: 1 PID: 76 at drivers/gpu/drm/drm_mode_config.c:648 drm_mode_config_validate+0x238/0x4d0
[ 6.567453] Modules linked in:
[ 6.577604] CPU: 1 PID: 76 Comm: kworker/u8:2 Not tainted 5.15.0-rc1-dirty #43
[ 6.580557] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[ 6.587763] Workqueue: events_unbound deferred_probe_work_func
[ 6.593926] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 6.599740] pc : drm_mode_config_validate+0x238/0x4d0
[ 6.606596] lr : drm_mode_config_validate+0x238/0x4d0
[ 6.611804] sp : ffff8000121b3980
[ 6.616838] x29: ffff8000121b3990 x28: 0000000000000000 x27: 0000000000000001
[ 6.620140] x26: ffff8000114cde50 x25: ffff8000114cdd40 x24: ffff0000987282d8
[ 6.627258] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000001
[ 6.634376] x20: ffff000098728000 x19: ffff000080a39000 x18: ffffffffffffffff
[ 6.641494] x17: 3136564e3631564e x16: 0000000000000324 x15: ffff800011c78709
[ 6.648613] x14: 0000000000000000 x13: ffff800011a22850 x12: 00000000000009ab
[ 6.655730] x11: 0000000000000339 x10: ffff800011a22850 x9 : ffff800011a22850
[ 6.662848] x8 : 00000000ffffefff x7 : ffff800011a7a850 x6 : ffff800011a7a850
[ 6.669966] x5 : 000000000000bff4 x4 : 40000000fffff339 x3 : 0000000000000000
[ 6.677084] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00008093b800
[ 6.684205] Call trace:
[ 6.691319] drm_mode_config_validate+0x238/0x4d0
[ 6.693577] drm_dev_register+0x17c/0x210
[ 6.698435] msm_drm_bind+0x4b4/0x694
[ 6.702429] try_to_bring_up_master+0x164/0x1d0
[ 6.706075] __component_add+0xa0/0x170
[ 6.710415] component_add+0x14/0x20
[ 6.714234] msm_hdmi_dev_probe+0x1c/0x2c
[ 6.718053] platform_probe+0x68/0xe0
[ 6.721959] really_probe.part.0+0x9c/0x30c
[ 6.725606] __driver_probe_device+0x98/0x144
[ 6.729600] driver_probe_device+0xc8/0x15c
[ 6.734114] __device_attach_driver+0xb4/0x120
[ 6.738106] bus_for_each_drv+0x78/0xd0
[ 6.742619] __device_attach+0xdc/0x184
[ 6.746351] device_initial_probe+0x14/0x20
[ 6.750172] bus_probe_device+0x9c/0xa4
[ 6.754337] deferred_probe_work_func+0x88/0xc0
[ 6.758158] process_one_work+0x1d0/0x370
[ 6.762671] worker_thread+0x2c8/0x470
[ 6.766839] kthread+0x15c/0x170
[ 6.770483] ret_from_fork+0x10/0x20
[ 6.773870] ---[ end trace 5884eb76cd26d274 ]---
[ 6.777500] ------------[ cut here ]------------
[ 6.782043] [CRTC:93:crtc-0] must not have both a cursor plane and a cursor_move func
[ 6.782063] WARNING: CPU: 1 PID: 76 at drivers/gpu/drm/drm_mode_config.c:654 drm_mode_config_validate+0x290/0x4d0
[ 6.794362] Modules linked in:
[ 6.804600] CPU: 1 PID: 76 Comm: kworker/u8:2 Tainted: G W 5.15.0-rc1-dirty #43
[ 6.807555] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[ 6.816148] Workqueue: events_unbound deferred_probe_work_func
[ 6.822311] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 6.828126] pc : drm_mode_config_validate+0x290/0x4d0
[ 6.834981] lr : drm_mode_config_validate+0x290/0x4d0
[ 6.840189] sp : ffff8000121b3980
[ 6.845223] x29: ffff8000121b3990 x28: 0000000000000000 x27: 0000000000000001
[ 6.848525] x26: ffff8000114cde50 x25: ffff8000114cdd40 x24: ffff0000987282d8
[ 6.855643] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000001
[ 6.862763] x20: ffff000098728000 x19: ffff000080a39000 x18: ffffffffffffffff
[ 6.869879] x17: 3136564e3631564e x16: 0000000000000324 x15: ffff800011c790c2
[ 6.876998] x14: 0000000000000000 x13: ffff800011a22850 x12: 0000000000000a2f
[ 6.884116] x11: 0000000000000365 x10: ffff800011a22850 x9 : ffff800011a22850
[ 6.891234] x8 : 00000000ffffefff x7 : ffff800011a7a850 x6 : ffff800011a7a850
[ 6.898351] x5 : 000000000000bff4 x4 : 40000000fffff365 x3 : 0000000000000000
[ 6.905470] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00008093b800
[ 6.912590] Call trace:
[ 6.919702] drm_mode_config_validate+0x290/0x4d0
[ 6.921960] drm_dev_register+0x17c/0x210
[ 6.926821] msm_drm_bind+0x4b4/0x694
[ 6.930813] try_to_bring_up_master+0x164/0x1d0
[ 6.934459] __component_add+0xa0/0x170
[ 6.938799] component_add+0x14/0x20
[ 6.942619] msm_hdmi_dev_probe+0x1c/0x2c
[ 6.946438] platform_probe+0x68/0xe0
[ 6.950345] really_probe.part.0+0x9c/0x30c
[ 6.953991] __driver_probe_device+0x98/0x144
[ 6.957984] driver_probe_device+0xc8/0x15c
[ 6.962498] __device_attach_driver+0xb4/0x120
[ 6.966492] bus_for_each_drv+0x78/0xd0
[ 6.971004] __device_attach+0xdc/0x184
[ 6.974737] device_initial_probe+0x14/0x20
[ 6.978556] bus_probe_device+0x9c/0xa4
[ 6.982722] deferred_probe_work_func+0x88/0xc0
[ 6.986543] process_one_work+0x1d0/0x370
[ 6.991057] worker_thread+0x2c8/0x470
[ 6.995223] kthread+0x15c/0x170
[ 6.998869] ret_from_fork+0x10/0x20
[ 7.002255] ---[ end trace 5884eb76cd26d275 ]---
Fixes: aa649e875daf ("drm/msm/mdp5: mdp5_crtc: Restore cursor state only if LM cursors are enabled")
Signed-off-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Clark <[email protected]>
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The return type of ktime_divns() is s64. The timeout_to_jiffies() currently
assigns the result of this ktime_divns() to unsigned long, which on 32 bit
systems may overflow. Furthermore, the result of this function is sometimes
also passed to functions which expect signed long, dma_fence_wait_timeout()
is one such example.
Fix this by adjusting the type of remaining_jiffies to s64, so we do not
suffer overflow there, and return a value limited to range of 0..INT_MAX,
which is safe for all usecases of this timeout.
The above overflow can be triggered if userspace passes in too large timeout
value, larger than INT_MAX / HZ seconds. The kernel detects it and complains
about "schedule_timeout: wrong timeout value %lx" and generates a warning
backtrace.
Note that this fixes commit 6cedb8b377bb ("drm/msm: avoid using 'timespec'"),
because the previously used timespec_to_jiffies() function returned unsigned
long instead of s64:
static inline unsigned long timespec_to_jiffies(const struct timespec *value)
Fixes: 6cedb8b377bb ("drm/msm: avoid using 'timespec'")
Signed-off-by: Marek Vasut <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Jordan Crouse <[email protected]>
Cc: Rob Clark <[email protected]>
Cc: [email protected] # 5.6+
Acked-by: Arnd Bergmann <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Clark <[email protected]>
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There is no devfreq on a3xx at the moment since gpu_busy is not
implemented. This means that msm_devfreq_init() will return early
and the entire devfreq setup is skipped.
However, msm_devfreq_active() and msm_devfreq_idle() are still called
unconditionally later, causing a NULL pointer dereference:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010
Internal error: Oops: 96000004 [#1] PREEMPT SMP
CPU: 0 PID: 133 Comm: ring0 Not tainted 5.15.0-rc1 #4
Hardware name: Longcheer L8150 (DT)
pc : mutex_lock_io+0x2bc/0x2f0
lr : msm_devfreq_active+0x3c/0xe0 [msm]
Call trace:
mutex_lock_io+0x2bc/0x2f0
msm_gpu_submit+0x164/0x180 [msm]
msm_job_run+0x54/0xe0 [msm]
drm_sched_main+0x2b0/0x4a0 [gpu_sched]
kthread+0x154/0x160
ret_from_fork+0x10/0x20
Fix this by adding a check in msm_devfreq_active/idle() which ensures
that devfreq was actually initialized earlier.
Fixes: 9bc95570175a ("drm/msm: Devfreq tuning")
Reported-by: Nikita Travkin <[email protected]>
Tested-by: Nikita Travkin <[email protected]>
Signed-off-by: Stephan Gerhold <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Clark <[email protected]>
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Currently there is audio not working problem after system resume from suspend
if hdmi monitor stay plugged in at DUT. However this problem does not happen
at normal operation but at a particular test case. The root cause is DP driver
signal audio with connected state at resume which trigger audio trying to setup
audio data path through DP main link but failed due to display port is not setup
and enabled by upper layer framework yet. This patch only have DP driver signal
audio only when DP is in disconnected state so that audio option shows correct
state after system resume. DP driver will not signal audio with connected state
until display enabled executed by upper layer framework where display port is
setup completed and main link is running.
Changes in V2:
-- add details commit text
Fixes: afc9b8b6bab8 ("drm/msm/dp: signal audio plugged change at dp_pm_resume")
Signed-off-by: Kuogee Hsieh <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Clark <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kunit fixes from Shuah Khan:
- Fixes to address the structleak plugin causing the stack frame size
to grow immensely when used with KUnit. Fixes include adding a new
makefile to disable structleak and using it from KUnit iio, device
property, thunderbolt, and bitfield tests to disable it.
- KUnit framework reference count leak in kfree_at_end
- KUnit tool fix to resolve conflict between --json and --raw_output
and generate correct test output in either case.
- kernel-doc warnings due to mismatched arg names
* tag 'linux-kselftest-kunit-fixes-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: fix kernel-doc warnings due to mismatched arg names
bitfield: build kunit tests without structleak plugin
thunderbolt: build kunit tests without structleak plugin
device property: build kunit tests without structleak plugin
iio/test-format: build kunit tests without structleak plugin
gcc-plugins/structleak: add makefile var for disabling structleak
kunit: fix reference count leak in kfree_at_end
kunit: tool: better handling of quasi-bool args (--json, --raw_output)
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"All documentation / comment updates"
* 'for-5.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroupv2, docs: fix misinformation in "device controller" section
cgroup/cpuset: Change references of cpuset_mutex to cpuset_rwsem
docs/cgroup: remove some duplicate words
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This reverts commit c1ec54b7b5af25c779192253f5a9f05e95cb43d7.
Commit c1ec54b7b5af
("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb")
would cause numerous mtk cmdq mailbox driver warning:
WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198
cmdq_task_exec_done+0xb8/0xe0
So revert that patch.
Reported-by: Enric Balletbo Serra <[email protected]>
Tested-by: Enric Balletbo Serra <[email protected]>
Signed-off-by: Chun-Kuang Hu <[email protected]>
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This reverts commit f4be17cd5b14dd73545b0e014a63ebe9ab5ef837.
Commit c1ec54b7b5af
("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb")
would cause numerous mtk cmdq mailbox driver warning:
WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198
cmdq_task_exec_done+0xb8/0xe0
So revert that patch and all the patches depend on that patch.
Reported-by: Enric Balletbo Serra <[email protected]>
Tested-by: Enric Balletbo Serra <[email protected]>
Signed-off-by: Chun-Kuang Hu <[email protected]>
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This reverts commit 8cdcb365342402fdeb664479b0a04e9debef8efb.
Commit c1ec54b7b5af
("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb")
would cause numerous mtk cmdq mailbox driver warning:
WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198
cmdq_task_exec_done+0xb8/0xe0
So revert that patch and all the patches depend on that patch.
Reported-by: Enric Balletbo Serra <[email protected]>
Tested-by: Enric Balletbo Serra <[email protected]>
Signed-off-by: Chun-Kuang Hu <[email protected]>
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This reverts commit bc9241be73d9b2b3bcb7033598521fd669639848.
Commit c1ec54b7b5af
("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb")
would cause numerous mtk cmdq mailbox driver warning:
WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198
cmdq_task_exec_done+0xb8/0xe0
So revert that patch and all the patches depend on that patch.
Reported-by: Enric Balletbo Serra <[email protected]>
Tested-by: Enric Balletbo Serra <[email protected]>
Signed-off-by: Chun-Kuang Hu <[email protected]>
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This reverts commit 9efb16c2fdd647d3888fd8dae84509f485cd554e.
Commit c1ec54b7b5af
("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb")
would cause numerous mtk cmdq mailbox driver warning:
WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198
cmdq_task_exec_done+0xb8/0xe0
So revert that patch and all the patches depend on that patch.
Reported-by: Enric Balletbo Serra <[email protected]>
Tested-by: Enric Balletbo Serra <[email protected]>
Signed-off-by: Chun-Kuang Hu <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixes from Tejun Heo:
"One patch to add a missing __printf annotation and the other to enable
deferred printing for debug dumps to avoid deadlocks when triggered
from some contexts (e.g. console drivers)"
* 'for-5.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: fix state-dump console deadlock
workqueue: annotate alloc_workqueue() as printf
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more error handling fixes, stemming from code inspection, error
injection or fuzzing"
* tag 'for-5.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix abort logic in btrfs_replace_file_extents
btrfs: check for error when looking up inode during dir entry replay
btrfs: unify lookup return value when dir entry is missing
btrfs: deal with errors when adding inode reference during log replay
btrfs: deal with errors when replaying dir entry during log replay
btrfs: deal with errors when checking if a dir entry exists during log replay
btrfs: update refs for any root except tree log roots
btrfs: unlock newly allocated extent buffer after error
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For non-4K PAGE_SIZE configs, the largest gigantic huge page size is
CONT_PMD_SHIFT order. On arm64 with 64K PAGE_SIZE, the gigantic page is
16G. Therefore, one should be able to specify 'hugetlb_cma=16G' on the
kernel command line so that one gigantic page can be allocated from CMA.
However, when adding such an option the following message is produced:
hugetlb_cma: cma area should be at least 8796093022208 MiB
This is because the calculation for non-4K gigantic page order is
incorrect in the arm64 specific routine arm64_hugetlb_cma_reserve().
Fixes: abb7962adc80 ("arm64/hugetlb: Reserve CMA areas for gigantic pages on 16K and 64K configs")
Cc: <[email protected]> # 5.9.x
Signed-off-by: Mike Kravetz <[email protected]>
Reviewed-by: Anshuman Khandual <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
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Console drivers often queue work while holding locks also taken in their
console write paths, something which can lead to deadlocks on SMP when
dumping workqueue state (e.g. sysrq-t or on suspend failures).
For serial console drivers this could look like:
CPU0 CPU1
---- ----
show_workqueue_state();
lock(&pool->lock); <IRQ>
lock(&port->lock);
schedule_work();
lock(&pool->lock);
printk();
lock(console_owner);
lock(&port->lock);
where workqueues are, for example, used to push data to the line
discipline, process break signals and handle modem-status changes. Line
disciplines and serdev drivers can also queue work on write-wakeup
notifications, etc.
Reworking every console driver to avoid queuing work while holding locks
also taken in their write paths would complicate drivers and is neither
desirable or feasible.
Instead use the deferred-printk mechanism to avoid printing while
holding pool locks when dumping workqueue state.
Note that there are a few WARN_ON() assertions in the workqueue code
which could potentially also trigger a deadlock. Hopefully the ongoing
printk rework will provide a general solution for this eventually.
This was originally reported after a lockdep splat when executing
sysrq-t with the imx serial driver.
Fixes: 3494fc30846d ("workqueue: dump workqueues on sysrq-t")
Cc: [email protected] # 4.0
Reported-by: Fabio Estevam <[email protected]>
Tested-by: Fabio Estevam <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: John Ogness <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
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Don't save size of attribute reparse point as size of symlink.
Signed-off-by: Konstantin Komarov <[email protected]>
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Change argument from void* to struct REPARSE_DATA_BUFFER*
We copy data to buffer, so we can read it later in ntfs_read_mft.
Signed-off-by: Konstantin Komarov <[email protected]>
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Set size for symlink, so we don't need to calculate it on the fly.
Signed-off-by: Konstantin Komarov <[email protected]>
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Rename some variables.
Returned err by default is EINVAL.
Signed-off-by: Konstantin Komarov <[email protected]>
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Now ntfs_utf16_to_nls takes length as one of arguments.
If length of symlink > 255, then we tried to convert
length of symlink +- some random number.
Now 255 symbols limit was removed.
Signed-off-by: Konstantin Komarov <[email protected]>
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Seems to fix some object-debug splat which appeared while debugging
something unrelated.
v2: s/guc_blocked/guc_state.blocked/
Signed-off-by: Matthew Auld <[email protected]>
Cc: Ville Syrjälä <[email protected]>
Cc: Matthew Brost <[email protected]>
Tested-by: Ville Syrjälä <[email protected]>
Reviewed-by: Matthew Brost <[email protected]>
Fixes: 62eaf0ae217d ("drm/i915/guc: Support request cancellation")
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit d576b31bdece7b5034047cbe21170e948198d32f)
Signed-off-by: Jani Nikula <[email protected]>
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