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Actually check if the passed pointers are valid, before writing to them.
This also fixes a USBAN warning:
UBSAN: invalid-load in ../sound/soc/fsl/imx-card.c:687:25
load of value 255 is not a valid value for type '_Bool'
This is because playback_only is uninitialized and is not written to, as
the playback-only property is absent.
Fixes: 844de7eebe97 ("ASoC: audio-graph-card2: expand dai_link property part")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://patch.msgid.link/20250429094910.1150970-1-alexander.stein@ew.tq-group.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The volume control for cs35l56 speakers has a maximum gain of +12 dB.
However, for many use cases, this can cause distorted audio, depending
various factors, such as other signal-processing elements in the chain,
for example if the audio passes through a gain control before reaching
the amp or the signal path has been tuned for a particular maximum
gain in the amp.
In the case of systems which use the soc_sdw_* driver, audio will
likely be distorted in all cases above 0 dB, therefore add a volume
limit of 400, which is 0 dB maximum volume inside this driver.
The volume limit should be applied to both soundwire and soundwire
bridge configurations.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://patch.msgid.link/20250430103134.24579-3-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The volume control for cs42l43 speakers has a maximum gain of +31.5 dB.
However, for many use cases, this can cause distorted audio, depending
various factors, such as other signal-processing elements in the chain,
for example if the audio passes through a gain control before reaching
the codec or the signal path has been tuned for a particular maximum
gain in the codec.
In the case of systems which use the soc_sdw_cs42l43 driver, audio will
likely be distorted in all cases above 0 dB, therefore add a volume
limit of 128, which is 0 dB maximum volume inside this driver.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20250430103134.24579-2-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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On MP2 SoCs SAI kernel clock rate is managed through
stm32_sai_set_parent_rate() function.
If the kernel clock rate was set previously to a low frequency, this
frequency may be too low to support the newly requested audio stream rate.
However the stm32_sai_rate_accurate() will only check accuracy against
the maximum kernel clock rate. The function will return leaving the kernel
clock rate unchanged.
Add a check on minimal frequency requirement, to avoid this.
Fixes: 2cfe1ff22555 ("ASoC: stm32: sai: add stm32mp25 support")
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://patch.msgid.link/20250430165210.321273-3-olivier.moysan@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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the frequency of the kernel clock must be greater than or equal to the
bitclock rate. When searching for a convenient kernel clock rate in
stm32_sai_set_parent_rate() function, it is useless to continue the loop
below bitclock rate, as it will result in a invalid kernel clock rate.
Change the loop output condition.
Fixes: 2cfe1ff22555 ("ASoC: stm32: sai: add stm32mp25 support")
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://patch.msgid.link/20250430165210.321273-2-olivier.moysan@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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irq_domain_debug_show_one() calls msi_domain_debug_show() with a non-NULL
domain pointer and a NULL irq_data pointer. irq_debug_show_data() calls it
with a NULL domain pointer.
The domain pointer is not used, but the irq_data pointer is required to be
non-NULL and lacks a NULL pointer check.
Add the missing NULL pointer check to ensure there is a non-NULL irq_data
pointer in msi_domain_debug_show() before dereferencing it.
[ tglx: Massaged change log ]
Fixes: 01499ae673dc ("genirq/msi: Expose MSI message data in debugfs")
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250430124836.49964-2-ajones@ventanamicro.com
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Fix MAX_REG_OFFSET to point to the last register in 'pt_regs' and not to
the marker itself, which could allow regs_get_register() to return an
invalid offset.
Fixes: 40e084a506eb ("MIPS: Add uprobes support.")
Suggested-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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We need to call dm_put_live_table() even if dm_get_live_table() returns
NULL.
Fixes: 9355a9eb21a5 ("dm: support key eviction from keyslot managers of underlying devices")
Cc: stable@vger.kernel.org # v5.12+
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
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More HP EliteBook with Realtek HDA codec ALC3247 and combined CS35L56
Amplifiers need quirk ALC236_FIXUP_HP_GPIO_LED to fix the micmute LED.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250430101843.150833-1-chris.chiu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fix potential inode leak in iget() after memory allocation failure
- in subpage mode, fix extent buffer bitmap iteration when writing out
dirty sectors
- fix range calculation when falling back to COW for a NOCOW file
* tag 'for-6.15-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: adjust subpage bit start based on sectorsize
btrfs: fix the inode leak in btrfs_iget()
btrfs: fix COW handling in run_delalloc_nocow()
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- Don't call bch2_trans_relock() after dir_emit(); taking a transaction
restart here will cause us to emit the same dirent to userspace twice
- Fix incorrect checking of the return value on dir_emit(): "true" means
success, keep going, but bch2_dir_emit() needs to return true when
we're finished iterating.
https://github.com/koverstreet/bcachefs/issues/867
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull modules fixes from Petr Pavlu:
"A single series to properly handle the module_kobject creation.
This fixes a problem with missing /sys/module/<module>/drivers for
built-in modules"
* tag 'modules-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
drivers: base: handle module_kobject creation
kernel: globalize lookup_or_create_module_kobject()
kernel: refactor lookup_or_create_module_kobject()
kernel: param: rename locate_module_kobject
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function
Function CIFSSMBSetPathInfo() is not supported by non-NT servers and
returns error. Fallback code via open filehandle and CIFSSMBSetFileInfo()
does not work neither because CIFS_open() works also only on NT server.
Therefore currently the whole smb_set_file_info() function as a SMB1
callback for the ->set_file_info() does not work with older non-NT SMB
servers, like Win9x and others.
This change implements fallback code in smb_set_file_info() which will
works with any server and allows to change time values and also to set or
clear read-only attributes.
To make existing fallback code via CIFSSMBSetFileInfo() working with also
non-NT servers, it is needed to change open function from CIFS_open()
(which is NT specific) to cifs_open_file() which works with any server
(this is just a open wrapper function which choose the correct open
function supported by the server).
CIFSSMBSetFileInfo() is working also on non-NT servers, but zero time
values are not treated specially. So first it is needed to fill all time
values if some of them are missing, via cifs_query_path_info() call.
There is another issue, opening file in write-mode (needed for changing
attributes) is not possible when the file has read-only attribute set.
The only option how to clear read-only attribute is via SMB_COM_SETATTR
command. And opening directory is not possible neither and here the
SMB_COM_SETATTR command is the only option how to change attributes.
And CIFSSMBSetFileInfo() does not honor setting read-only attribute, so
for setting is also needed to use SMB_COM_SETATTR command.
Existing code in cifs_query_path_info() is already using SMB_COM_GETATTR as
a fallback code path (function SMBQueryInformation()), so introduce a new
function SMBSetInformation which will implement SMB_COM_SETATTR command.
My testing showed that Windows XP SMB1 client is also using SMB_COM_SETATTR
command for setting or clearing read-only attribute against non-NT server.
So this can prove that this is the correct way how to do it.
With this change it is possible set all 4 time values and all attributes,
including clearing and setting read-only bit on non-NT SMB servers.
Tested against Win98 SMB1 server.
This change fixes "touch" command which was failing when called on existing
file. And fixes also "chmod +w" and "chmod -w" commands which were also
failing (as they are changing read-only attribute).
Note that this change depends on following change
"cifs: Improve cifs_query_path_info() and cifs_query_file_info()"
as it require to query all 4 time attribute values.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
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When CAP_NT_SMBS was not negotiated then do not issue CIFSSMBQPathInfo()
and CIFSSMBQFileInfo() commands. CIFSSMBQPathInfo() is not supported by
non-NT Win9x SMB server and CIFSSMBQFileInfo() returns from Win9x SMB
server bogus data in Attributes field (for example lot of files are marked
as reparse points, even Win9x does not support them and read-only bit is
not marked for read-only files). Correct information is returned by
CIFSFindFirst() or SMBQueryInformation() command.
So as a fallback in cifs_query_path_info() function use CIFSFindFirst()
with SMB_FIND_FILE_FULL_DIRECTORY_INFO level which is supported by both NT
and non-NT servers and as a last option use SMBQueryInformation() as it was
before.
And in function cifs_query_file_info() immediately returns -EOPNOTSUPP when
not communicating with NT server. Client then revalidate inode entry by the
cifs_query_path_info() call, which is working fine. So fstat() syscall on
already opened file will receive correct information.
Note that both fallback functions in non-UNICODE mode expands wildcards.
Therefore those fallback functions cannot be used on paths which contain
SMB wildcard characters (* ? " > <).
CIFSFindFirst() returns all 4 time attributes as opposite of
SMBQueryInformation() which returns only one.
With this change it is possible to query all 4 times attributes from Win9x
server and at the same time, client minimize sending of unsupported
commands to server.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
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SMB create requests issued via smb311_posix_mkdir() have an incorrect
length of zero bytes for the POSIX create context data. ksmbd server
rejects such requests and logs "cli req too short" causing mkdir to fail
with "invalid argument" on the client side. It also causes subsequent
rmmod to crash in cifs_destroy_request_bufs()
Inspection of packets sent by cifs.ko using wireshark show valid data for
the SMB2_POSIX_CREATE_CONTEXT is appended with the correct offset, but
with an incorrect length of zero bytes. Fails with ksmbd+cifs.ko only as
Windows server/client does not use POSIX extensions.
Fix smb311_posix_mkdir() to set req->CreateContextsLength as part of
appending the POSIX creation context to the request.
Signed-off-by: Jethro Donaldson <devel@jro.nz>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
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When turbo mode is unavailable on a Skylake-X system, executing the
command:
# echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo
results in an unchecked MSR access error:
WRMSR to 0x199 (attempted to write 0x0000000100001300).
This issue was reproduced on an OEM (Original Equipment Manufacturer)
system and is not a common problem across all Skylake-X systems.
This error occurs because the MSR 0x199 Turbo Engage Bit (bit 32) is set
when turbo mode is disabled. The issue arises when intel_pstate fails to
detect that turbo mode is disabled. Here intel_pstate relies on
MSR_IA32_MISC_ENABLE bit 38 to determine the status of turbo mode.
However, on this system, bit 38 is not set even when turbo mode is
disabled.
According to the Intel Software Developer's Manual (SDM), the BIOS sets
this bit during platform initialization to enable or disable
opportunistic processor performance operations. Logically, this bit
should be set in such cases. However, the SDM also specifies that "OS
and applications must use CPUID leaf 06H to detect processors with
opportunistic processor performance operations enabled."
Therefore, in addition to checking MSR_IA32_MISC_ENABLE bit 38, verify
that CPUID.06H:EAX[1] is 0 to accurately determine if turbo mode is
disabled.
Fixes: 4521e1a0ce17 ("cpufreq: intel_pstate: Reflect current no_turbo state correctly")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Before commit bca84a7b93fd ("PM: sleep: Use DPM_FLAG_SMART_SUSPEND
conditionally") the runtime PM status of the device in intel_resume()
had always been RPM_ACTIVE because setting DPM_FLAG_SMART_SUSPEND had
caused the core to call pm_runtime_set_active() for that device during
the "noirq" resume phase. For this reason, the pm_runtime_suspended()
check in intel_resume() had never triggered and the code depending on
it had never run. That had not caused any observable functional issues
to appear, so effectively the code in question had never been needed.
After commit bca84a7b93fd the core does not call pm_runtime_set_active()
for all devices with DPM_FLAG_SMART_SUSPEND set any more and the code
depending on the pm_runtime_suspended() check in intel_resume() runs if
the device is runtime-suspended prior to a system-wide suspend
transition. Unfortunately, when it runs, it breaks things due to the
attempt to runtime-resume bus->dev which most likely is not ready for a
runtime resume at that point.
It also does other more-or-less questionable things. Namely, it
calls pm_runtime_idle() for a device with a nonzero runtime PM usage
counter which has no effect (all devices have nonzero runtime PM
usage counters during system-wide suspend and resume). It also calls
pm_runtime_mark_last_busy() for the device even though devices cannot
runtime-suspend during system-wide suspend and resume (because their
runtime PM usage counters are nonzero) and an analogous call is made
in the same function later. Moreover, it sets the runtime PM status
of the device to RPM_ACTIVE before activating it.
For the reasons listed above, remove that code altogether.
On top of that, add a pm_runtime_disable() call to intel_suspend() to
prevent the device from being runtime-resumed at any point after
intel_suspend() has started to manipulate it because the changes
made by that function would be undone by a runtime-suspend of the
device.
Next, once runtime PM has been disabled, the runtime PM status of the
device cannot change, so pm_runtime_status_suspended() can be used
instead of pm_runtime_suspended() in intel_suspend().
Finally, make intel_resume() call pm_runtime_set_active() at the end to
set the runtime PM status of the device to "active" because it has just
been activated and re-enable runtime PM for it after that.
Additionally, drop the setting of DPM_FLAG_SMART_SUSPEND from the
driver because it has no effect on devices handled by it.
Fixes: bca84a7b93fd ("PM: sleep: Use DPM_FLAG_SMART_SUSPEND conditionally")
Reported-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://patch.msgid.link/12680420.O9o76ZdvQC@rjwysocki.net
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syzbot complains about the cached sq head read, and it's totally right.
But we don't need to care, it's just reading fdinfo, and reading the
CQ or SQ tail/head entries are known racy in that they are just a view
into that very instant and may of course be outdated by the time they
are reported.
Annotate both the SQ head and CQ tail read with data_race() to avoid
this syzbot complaint.
Link: https://lore.kernel.org/io-uring/6811f6dc.050a0220.39e3a1.0d0e.GAE@google.com/
Reported-by: syzbot+3e77fd302e99f5af9394@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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After calling nvme_auth_derive_tls_psk() we need to free the resulting
psk data, as either TLS is disable (and we don't need the data anyway)
or the psk data is copied into the resulting key (and can be free, too).
Fixes: fa2e0f8bbc68 ("nvmet-tcp: support secure channel concatenation")
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Suggested-by: Maurizio Lombardi <mlombard@bsdbackstore.eu>
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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queue->state_change is set as part of nvmet_tcp_set_queue_sock(), but if
the TCP connection isn't established when nvmet_tcp_set_queue_sock() is
called then queue->state_change isn't set and sock->sk->sk_state_change
isn't replaced.
As such we don't need to restore sock->sk->sk_state_change if
queue->state_change is NULL.
This avoids NULL pointer dereferences such as this:
[ 286.462026][ C0] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 286.462814][ C0] #PF: supervisor instruction fetch in kernel mode
[ 286.463796][ C0] #PF: error_code(0x0010) - not-present page
[ 286.464392][ C0] PGD 8000000140620067 P4D 8000000140620067 PUD 114201067 PMD 0
[ 286.465086][ C0] Oops: Oops: 0010 [#1] SMP KASAN PTI
[ 286.465559][ C0] CPU: 0 UID: 0 PID: 1628 Comm: nvme Not tainted 6.15.0-rc2+ #11 PREEMPT(voluntary)
[ 286.466393][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014
[ 286.467147][ C0] RIP: 0010:0x0
[ 286.467420][ C0] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 286.467977][ C0] RSP: 0018:ffff8883ae008580 EFLAGS: 00010246
[ 286.468425][ C0] RAX: 0000000000000000 RBX: ffff88813fd34100 RCX: ffffffffa386cc43
[ 286.469019][ C0] RDX: 1ffff11027fa68b6 RSI: 0000000000000008 RDI: ffff88813fd34100
[ 286.469545][ C0] RBP: ffff88813fd34160 R08: 0000000000000000 R09: ffffed1027fa682c
[ 286.470072][ C0] R10: ffff88813fd34167 R11: 0000000000000000 R12: ffff88813fd344c3
[ 286.470585][ C0] R13: ffff88813fd34112 R14: ffff88813fd34aec R15: ffff888132cdd268
[ 286.471070][ C0] FS: 00007fe3c04c7d80(0000) GS:ffff88840743f000(0000) knlGS:0000000000000000
[ 286.471644][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 286.472543][ C0] CR2: ffffffffffffffd6 CR3: 000000012daca000 CR4: 00000000000006f0
[ 286.473500][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 286.474467][ C0] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400
[ 286.475453][ C0] Call Trace:
[ 286.476102][ C0] <IRQ>
[ 286.476719][ C0] tcp_fin+0x2bb/0x440
[ 286.477429][ C0] tcp_data_queue+0x190f/0x4e60
[ 286.478174][ C0] ? __build_skb_around+0x234/0x330
[ 286.478940][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.479659][ C0] ? __pfx_tcp_data_queue+0x10/0x10
[ 286.480431][ C0] ? tcp_try_undo_loss+0x640/0x6c0
[ 286.481196][ C0] ? seqcount_lockdep_reader_access.constprop.0+0x82/0x90
[ 286.482046][ C0] ? kvm_clock_get_cycles+0x14/0x30
[ 286.482769][ C0] ? ktime_get+0x66/0x150
[ 286.483433][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.484146][ C0] tcp_rcv_established+0x6e4/0x2050
[ 286.484857][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.485523][ C0] ? ipv4_dst_check+0x160/0x2b0
[ 286.486203][ C0] ? __pfx_tcp_rcv_established+0x10/0x10
[ 286.486917][ C0] ? lock_release+0x217/0x2c0
[ 286.487595][ C0] tcp_v4_do_rcv+0x4d6/0x9b0
[ 286.488279][ C0] tcp_v4_rcv+0x2af8/0x3e30
[ 286.488904][ C0] ? raw_local_deliver+0x51b/0xad0
[ 286.489551][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.490198][ C0] ? __pfx_tcp_v4_rcv+0x10/0x10
[ 286.490813][ C0] ? __pfx_raw_local_deliver+0x10/0x10
[ 286.491487][ C0] ? __pfx_nf_confirm+0x10/0x10 [nf_conntrack]
[ 286.492275][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.492900][ C0] ip_protocol_deliver_rcu+0x8f/0x370
[ 286.493579][ C0] ip_local_deliver_finish+0x297/0x420
[ 286.494268][ C0] ip_local_deliver+0x168/0x430
[ 286.494867][ C0] ? __pfx_ip_local_deliver+0x10/0x10
[ 286.495498][ C0] ? __pfx_ip_local_deliver_finish+0x10/0x10
[ 286.496204][ C0] ? ip_rcv_finish_core+0x19a/0x1f20
[ 286.496806][ C0] ? lock_release+0x217/0x2c0
[ 286.497414][ C0] ip_rcv+0x455/0x6e0
[ 286.497945][ C0] ? __pfx_ip_rcv+0x10/0x10
[ 286.498550][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.499137][ C0] ? __pfx_ip_rcv_finish+0x10/0x10
[ 286.499763][ C0] ? lock_release+0x217/0x2c0
[ 286.500327][ C0] ? dl_scaled_delta_exec+0xd1/0x2c0
[ 286.500922][ C0] ? __pfx_ip_rcv+0x10/0x10
[ 286.501480][ C0] __netif_receive_skb_one_core+0x166/0x1b0
[ 286.502173][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10
[ 286.502903][ C0] ? lock_acquire+0x2b2/0x310
[ 286.503487][ C0] ? process_backlog+0x372/0x1350
[ 286.504087][ C0] ? lock_release+0x217/0x2c0
[ 286.504642][ C0] process_backlog+0x3b9/0x1350
[ 286.505214][ C0] ? process_backlog+0x372/0x1350
[ 286.505779][ C0] __napi_poll.constprop.0+0xa6/0x490
[ 286.506363][ C0] net_rx_action+0x92e/0xe10
[ 286.506889][ C0] ? __pfx_net_rx_action+0x10/0x10
[ 286.507437][ C0] ? timerqueue_add+0x1f0/0x320
[ 286.507977][ C0] ? sched_clock_cpu+0x68/0x540
[ 286.508492][ C0] ? lock_acquire+0x2b2/0x310
[ 286.509043][ C0] ? kvm_sched_clock_read+0xd/0x20
[ 286.509607][ C0] ? handle_softirqs+0x1aa/0x7d0
[ 286.510187][ C0] handle_softirqs+0x1f2/0x7d0
[ 286.510754][ C0] ? __pfx_handle_softirqs+0x10/0x10
[ 286.511348][ C0] ? irqtime_account_irq+0x181/0x290
[ 286.511937][ C0] ? __dev_queue_xmit+0x85d/0x3450
[ 286.512510][ C0] do_softirq.part.0+0x89/0xc0
[ 286.513100][ C0] </IRQ>
[ 286.513548][ C0] <TASK>
[ 286.513953][ C0] __local_bh_enable_ip+0x112/0x140
[ 286.514522][ C0] ? __dev_queue_xmit+0x85d/0x3450
[ 286.515072][ C0] __dev_queue_xmit+0x872/0x3450
[ 286.515619][ C0] ? nft_do_chain+0xe16/0x15b0 [nf_tables]
[ 286.516252][ C0] ? __pfx___dev_queue_xmit+0x10/0x10
[ 286.516817][ C0] ? selinux_ip_postroute+0x43c/0xc50
[ 286.517433][ C0] ? __pfx_selinux_ip_postroute+0x10/0x10
[ 286.518061][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.518606][ C0] ? ip_output+0x164/0x4a0
[ 286.519149][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.519671][ C0] ? ip_finish_output2+0x17d5/0x1fb0
[ 286.520258][ C0] ip_finish_output2+0xb4b/0x1fb0
[ 286.520787][ C0] ? __pfx_ip_finish_output2+0x10/0x10
[ 286.521355][ C0] ? __ip_finish_output+0x15d/0x750
[ 286.521890][ C0] ip_output+0x164/0x4a0
[ 286.522372][ C0] ? __pfx_ip_output+0x10/0x10
[ 286.522872][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.523402][ C0] ? _raw_spin_unlock_irqrestore+0x4c/0x60
[ 286.524031][ C0] ? __pfx_ip_finish_output+0x10/0x10
[ 286.524605][ C0] ? __ip_queue_xmit+0x999/0x2260
[ 286.525200][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.525744][ C0] ? ipv4_dst_check+0x16a/0x2b0
[ 286.526279][ C0] ? lock_release+0x217/0x2c0
[ 286.526793][ C0] __ip_queue_xmit+0x1883/0x2260
[ 286.527324][ C0] ? __skb_clone+0x54c/0x730
[ 286.527827][ C0] __tcp_transmit_skb+0x209b/0x37a0
[ 286.528374][ C0] ? __pfx___tcp_transmit_skb+0x10/0x10
[ 286.528952][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.529472][ C0] ? seqcount_lockdep_reader_access.constprop.0+0x82/0x90
[ 286.530152][ C0] ? trace_hardirqs_on+0x12/0x120
[ 286.530691][ C0] tcp_write_xmit+0xb81/0x88b0
[ 286.531224][ C0] ? mod_memcg_state+0x4d/0x60
[ 286.531736][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.532253][ C0] __tcp_push_pending_frames+0x90/0x320
[ 286.532826][ C0] tcp_send_fin+0x141/0xb50
[ 286.533352][ C0] ? __pfx_tcp_send_fin+0x10/0x10
[ 286.533908][ C0] ? __local_bh_enable_ip+0xab/0x140
[ 286.534495][ C0] inet_shutdown+0x243/0x320
[ 286.535077][ C0] nvme_tcp_alloc_queue+0xb3b/0x2590 [nvme_tcp]
[ 286.535709][ C0] ? do_raw_spin_lock+0x129/0x260
[ 286.536314][ C0] ? __pfx_nvme_tcp_alloc_queue+0x10/0x10 [nvme_tcp]
[ 286.536996][ C0] ? do_raw_spin_unlock+0x54/0x1e0
[ 286.537550][ C0] ? _raw_spin_unlock+0x29/0x50
[ 286.538127][ C0] ? do_raw_spin_lock+0x129/0x260
[ 286.538664][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 286.539249][ C0] ? nvme_tcp_alloc_admin_queue+0xd5/0x340 [nvme_tcp]
[ 286.539892][ C0] ? __wake_up+0x40/0x60
[ 286.540392][ C0] nvme_tcp_alloc_admin_queue+0xd5/0x340 [nvme_tcp]
[ 286.541047][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.541589][ C0] nvme_tcp_setup_ctrl+0x8b/0x7a0 [nvme_tcp]
[ 286.542254][ C0] ? _raw_spin_unlock_irqrestore+0x4c/0x60
[ 286.542887][ C0] ? __pfx_nvme_tcp_setup_ctrl+0x10/0x10 [nvme_tcp]
[ 286.543568][ C0] ? trace_hardirqs_on+0x12/0x120
[ 286.544166][ C0] ? _raw_spin_unlock_irqrestore+0x35/0x60
[ 286.544792][ C0] ? nvme_change_ctrl_state+0x196/0x2e0 [nvme_core]
[ 286.545477][ C0] nvme_tcp_create_ctrl+0x839/0xb90 [nvme_tcp]
[ 286.546126][ C0] nvmf_dev_write+0x3db/0x7e0 [nvme_fabrics]
[ 286.546775][ C0] ? rw_verify_area+0x69/0x520
[ 286.547334][ C0] vfs_write+0x218/0xe90
[ 286.547854][ C0] ? do_syscall_64+0x9f/0x190
[ 286.548408][ C0] ? trace_hardirqs_on_prepare+0xdb/0x120
[ 286.549037][ C0] ? syscall_exit_to_user_mode+0x93/0x280
[ 286.549659][ C0] ? __pfx_vfs_write+0x10/0x10
[ 286.550259][ C0] ? do_syscall_64+0x9f/0x190
[ 286.550840][ C0] ? syscall_exit_to_user_mode+0x8e/0x280
[ 286.551516][ C0] ? trace_hardirqs_on_prepare+0xdb/0x120
[ 286.552180][ C0] ? syscall_exit_to_user_mode+0x93/0x280
[ 286.552834][ C0] ? ksys_read+0xf5/0x1c0
[ 286.553386][ C0] ? __pfx_ksys_read+0x10/0x10
[ 286.553964][ C0] ksys_write+0xf5/0x1c0
[ 286.554499][ C0] ? __pfx_ksys_write+0x10/0x10
[ 286.555072][ C0] ? trace_hardirqs_on_prepare+0xdb/0x120
[ 286.555698][ C0] ? syscall_exit_to_user_mode+0x93/0x280
[ 286.556319][ C0] ? do_syscall_64+0x54/0x190
[ 286.556866][ C0] do_syscall_64+0x93/0x190
[ 286.557420][ C0] ? rcu_read_unlock+0x17/0x60
[ 286.557986][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.558526][ C0] ? lock_release+0x217/0x2c0
[ 286.559087][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.559659][ C0] ? count_memcg_events.constprop.0+0x4a/0x60
[ 286.560476][ C0] ? exc_page_fault+0x7a/0x110
[ 286.561064][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.561647][ C0] ? lock_release+0x217/0x2c0
[ 286.562257][ C0] ? do_user_addr_fault+0x171/0xa00
[ 286.562839][ C0] ? do_user_addr_fault+0x4a2/0xa00
[ 286.563453][ C0] ? irqentry_exit_to_user_mode+0x84/0x270
[ 286.564112][ C0] ? rcu_is_watching+0x11/0xb0
[ 286.564677][ C0] ? irqentry_exit_to_user_mode+0x84/0x270
[ 286.565317][ C0] ? trace_hardirqs_on_prepare+0xdb/0x120
[ 286.565922][ C0] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 286.566542][ C0] RIP: 0033:0x7fe3c05e6504
[ 286.567102][ C0] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d c5 8b 10 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89
[ 286.568931][ C0] RSP: 002b:00007fff76444f58 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 286.569807][ C0] RAX: ffffffffffffffda RBX: 000000003b40d930 RCX: 00007fe3c05e6504
[ 286.570621][ C0] RDX: 00000000000000cf RSI: 000000003b40d930 RDI: 0000000000000003
[ 286.571443][ C0] RBP: 0000000000000003 R08: 00000000000000cf R09: 000000003b40d930
[ 286.572246][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 000000003b40cd60
[ 286.573069][ C0] R13: 00000000000000cf R14: 00007fe3c07417f8 R15: 00007fe3c073502e
[ 286.573886][ C0] </TASK>
Closes: https://lore.kernel.org/linux-nvme/5hdonndzoqa265oq3bj6iarwtfk5dewxxjtbjvn5uqnwclpwt6@a2n6w3taxxex/
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
|
|
Ensure that TLS support is enabled in the kernel when
CONFIG_NVME_TARGET_TCP_TLS is enabled. Without this the code compiles,
but does not actually work unless something else enables CONFIG_TLS.
Fixes: 675b453e0241 ("nvmet-tcp: enable TLS handshake upcall")
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
|
|
Ensure that TLS support is enabled in the kernel when
CONFIG_NVME_TCP_TLS is enabled. Without this the code compiles, but does
not actually work unless something else enables CONFIG_TLS.
Fixes: be8e82caa68 ("nvme-tcp: enable TLS handshake upcall")
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
|
|
This patch addresses a data corruption issue observed in nvme-tcp during
testing.
In an NVMe native multipath setup, when an I/O timeout occurs, all
inflight I/Os are canceled almost immediately after the kernel socket is
shut down. These canceled I/Os are reported as host path errors,
triggering a failover that succeeds on a different path.
However, at this point, the original I/O may still be outstanding in the
host's network transmission path (e.g., the NIC’s TX queue). From the
user-space app's perspective, the buffer associated with the I/O is
considered completed since they're acked on the different path and may
be reused for new I/O requests.
Because nvme-tcp enables zero-copy by default in the transmission path,
this can lead to corrupted data being sent to the original target,
ultimately causing data corruption.
We can reproduce this data corruption by injecting delay on one path and
triggering i/o timeout.
To prevent this issue, this change ensures that all inflight
transmissions are fully completed from host's perspective before
returning from queue stop. To handle concurrent I/O timeout from multiple
namespaces under the same controller, always wait in queue stop
regardless of queue's state.
This aligns with the behavior of queue stopping in other NVMe fabric
transports.
Fixes: 3f2304f8c6d6 ("nvme-tcp: add NVMe over TCP host driver")
Signed-off-by: Michael Liang <mliang@purestorage.com>
Reviewed-by: Mohamed Khalfella <mkhalfella@purestorage.com>
Reviewed-by: Randy Jennings <randyj@purestorage.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
|
|
Michael Chan says:
====================
bnxt_en: Misc. bug fixes
This series fixes a bug in the driver initialization path, MSIX
setup sequencing issue in the FW error and AER paths, a missing
skb_mark_for_recycle() in the VLAN error path, some ethtool coredump
fixes, an ethtool selftest fix, and an ethtool register dump byte order
fix.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
For version 1 register dump that includes the PCIe stats, the existing
code incorrectly assumes that all PCIe stats are 64-bit values. Fix it
by using an array containing the starting and ending index of the 32-bit
values. The loop in bnxt_get_regs() will use the array to do proper
endian swap for the 32-bit values.
Fixes: b5d600b027eb ("bnxt_en: Add support for 'ethtool -d'")
Reviewed-by: Shruti Parab <shruti.parab@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When retrieving the FW coredump using ethtool, it can sometimes cause
memory corruption:
BUG: KFENCE: memory corruption in __bnxt_get_coredump+0x3ef/0x670 [bnxt_en]
Corrupted memory at 0x000000008f0f30e8 [ ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ] (in kfence-#45):
__bnxt_get_coredump+0x3ef/0x670 [bnxt_en]
ethtool_get_dump_data+0xdc/0x1a0
__dev_ethtool+0xa1e/0x1af0
dev_ethtool+0xa8/0x170
dev_ioctl+0x1b5/0x580
sock_do_ioctl+0xab/0xf0
sock_ioctl+0x1ce/0x2e0
__x64_sys_ioctl+0x87/0xc0
do_syscall_64+0x5c/0xf0
entry_SYSCALL_64_after_hwframe+0x78/0x80
...
This happens when copying the coredump segment list in
bnxt_hwrm_dbg_dma_data() with the HWRM_DBG_COREDUMP_LIST FW command.
The info->dest_buf buffer is allocated based on the number of coredump
segments returned by the FW. The segment list is then DMA'ed by
the FW and the length of the DMA is returned by FW. The driver then
copies this DMA'ed segment list to info->dest_buf.
In some cases, this DMA length may exceed the info->dest_buf length
and cause the above BUG condition. Fix it by capping the copy
length to not exceed the length of info->dest_buf. The extra
DMA data contains no useful information.
This code path is shared for the HWRM_DBG_COREDUMP_LIST and the
HWRM_DBG_COREDUMP_RETRIEVE FW commands. The buffering is different
for these 2 FW commands. To simplify the logic, we need to move
the line to adjust the buffer length for HWRM_DBG_COREDUMP_RETRIEVE
up, so that the new check to cap the copy length will work for both
commands.
Fixes: c74751f4c392 ("bnxt_en: Return error if FW returns more data than dump length")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When handling HWRM_DBG_COREDUMP_LIST FW command in
bnxt_hwrm_dbg_dma_data(), the allocated buffer info->dest_buf is
not freed in the error path. In the normal path, info->dest_buf
is assigned to coredump->data and it will eventually be freed after
the coredump is collected.
Free info->dest_buf immediately inside bnxt_hwrm_dbg_dma_data() in
the error path.
Fixes: c74751f4c392 ("bnxt_en: Return error if FW returns more data than dump length")
Reported-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This patch is similar to the last patch to delay the
pci_alloc_irq_vectors() call in the AER path until after calling
bnxt_reserve_rings(). bnxt_reserve_rings() needs to properly map
the MSIX table first before we call pci_alloc_irq_vectors() which
may immediately write to the MSIX table in some architectures.
Move the bnxt_init_int_mode() call from bnxt_io_slot_reset() to
bnxt_io_resume() after calling bnxt_reserve_rings().
With this change, the AER path may call bnxt_open() ->
bnxt_hwrm_if_change() with bp->irq_tbl set to NULL. bp->irq_tbl is
cleared when we call bnxt_clear_int_mode() in bnxt_io_slot_reset().
So we cannot use !bp->irq_tbl to detect aborted FW reset. Add a
new BNXT_FW_RESET_STATE_ABORT to detect aborted FW reset in
bnxt_hwrm_if_change().
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
On some architectures (e.g. ARM), calling pci_alloc_irq_vectors()
will immediately cause the MSIX table to be written. This will not
work if we haven't called bnxt_reserve_rings() to properly map
the MSIX table to the MSIX vectors reserved by FW.
Fix the FW error recovery path to delay the bnxt_init_int_mode() ->
pci_alloc_irq_vectors() call by removing it from bnxt_hwrm_if_change().
bnxt_request_irq() later in the code path will call it and by then the
MSIX table is properly mapped.
Fixes: 4343838ca5eb ("bnxt_en: Replace deprecated PCI MSIX APIs")
Suggested-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
If bnxt_rx_vlan() fails because the VLAN protocol ID is invalid,
the SKB is freed but we're missing the call to recycle it. This
may cause the warning:
"page_pool_release_retry() stalled pool shutdown"
Add the missing skb_mark_for_recycle() in bnxt_rx_vlan().
Fixes: 86b05508f775 ("bnxt_en: Use the unified RX page pool buffers for XDP and non-XDP")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When RDMA driver is loaded, running offline self test is not
supported and driver returns failure early. But it is not clearing
the input buffer and hence the application prints some junk
characters for individual test results.
Fix it by clearing the buffer before returning.
Fixes: 895621f1c816 ("bnxt_en: Don't support offline self test when RoCE driver is loaded")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
WARN_ON() is triggered in __flush_work() if bnxt_init_chip() fails
because we call cancel_work_sync() on dim work that has not been
initialized.
WARNING: CPU: 37 PID: 5223 at kernel/workqueue.c:4201 __flush_work.isra.0+0x212/0x230
The driver relies on the BNXT_STATE_NAPI_DISABLED bit to check if dim
work has already been cancelled. But in the bnxt_open() path,
BNXT_STATE_NAPI_DISABLED is not set and this causes the error
path to think that it needs to cancel the uninitalized dim work.
Fix it by setting BNXT_STATE_NAPI_DISABLED during initialization.
The bit will be cleared when we enable NAPI and initialize dim work.
Fixes: 40452969a506 ("bnxt_en: Fix DIM shutdown")
Suggested-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Shravya KN <shravya.k-n@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When generating the MSR_IA32_PEBS_ENABLE value that will be loaded on
VM-Entry to a KVM guest, mask the value with the vCPU's desired PEBS_ENABLE
value. Consulting only the host kernel's host vs. guest masks results in
running the guest with PEBS enabled even when the guest doesn't want to use
PEBS. Because KVM uses perf events to proxy the guest virtual PMU, simply
looking at exclude_host can't differentiate between events created by host
userspace, and events created by KVM on behalf of the guest.
Running the guest with PEBS unexpectedly enabled typically manifests as
crashes due to a near-infinite stream of #PFs. E.g. if the guest hasn't
written MSR_IA32_DS_AREA, the CPU will hit page faults on address '0' when
trying to record PEBS events.
The issue is most easily reproduced by running `perf kvm top` from before
commit 7b100989b4f6 ("perf evlist: Remove __evlist__add_default") (after
which, `perf kvm top` effectively stopped using PEBS). The userspace side
of perf creates a guest-only PEBS event, which intel_guest_get_msrs()
misconstrues a guest-*owned* PEBS event.
Arguably, this is a userspace bug, as enabling PEBS on guest-only events
simply cannot work, and userspace can kill VMs in many other ways (there
is no danger to the host). However, even if this is considered to be bad
userspace behavior, there's zero downside to perf/KVM restricting PEBS to
guest-owned events.
Note, commit 854250329c02 ("KVM: x86/pmu: Disable guest PEBS temporarily
in two rare situations") fixed the case where host userspace is profiling
KVM *and* userspace, but missed the case where userspace is profiling only
KVM.
Fixes: c59a1f106f5c ("KVM: x86/pmu: Add IA32_PEBS_ENABLE MSR emulation for extended PEBS")
Closes: https://lore.kernel.org/all/Z_VUswFkWiTYI0eD@do-x1carbon
Reported-by: Seth Forshee <sforshee@kernel.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Tested-by: "Seth Forshee (DigitalOcean)" <sforshee@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250426001355.1026530-1-seanjc@google.com
|
|
The mutex unlock for vdev->submitted_jobs_lock was incorrectly placed
before unlocking file_priv->lock. Change order of unlocks to avoid potential
race conditions.
Fixes: 5bbccadaf33e ("accel/ivpu: Abort all jobs after command queue unregister")
Signed-off-by: Karol Wachowski <karol.wachowski@intel.com>
Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://lore.kernel.org/r/20250425093656.2228168-1-jacek.lawrynowicz@linux.intel.com
|
|
Fix deadlocks in ivpu_cmdq_create_ioctl() and ivpu_cmdq_destroy_ioctl()
related to runtime suspend.
Runtime suspend acquires file_priv->lock mutex by calling
ivpu_cmdq_reset_all_contexts(). The same lock is acquired in the cmdq
ioctls. If one of the cmdq ioctls is called while runtime suspend is in
progress, it can lead to a deadlock.
Call stacks from example deadlock below.
Runtime suspend thread:
[ 3443.179717] Call Trace:
[ 3443.179724] __schedule+0x4b6/0x16b0
[ 3443.179732] ? __mod_timer+0x27d/0x3a0
[ 3443.179738] schedule+0x2f/0x140
[ 3443.179741] schedule_preempt_disabled+0x19/0x30
[ 3443.179743] __mutex_lock.constprop.0+0x335/0x7d0
[ 3443.179745] ? xas_find+0x1ed/0x260
[ 3443.179747] ? xa_find+0x8e/0xf0
[ 3443.179749] __mutex_lock_slowpath+0x13/0x20
[ 3443.179751] mutex_lock+0x41/0x60
[ 3443.179757] ivpu_cmdq_reset_all_contexts+0x82/0x150 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.179786] ivpu_pm_runtime_suspend_cb+0x1f1/0x3f0 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.179850] pci_pm_runtime_suspend+0x6e/0x1f0
[ 3443.179870] ? __pfx_pci_pm_runtime_suspend+0x10/0x10
[ 3443.179886] __rpm_callback+0x48/0x130
[ 3443.179899] rpm_callback+0x64/0x70
[ 3443.179911] rpm_suspend+0x12c/0x630
[ 3443.179922] ? __schedule+0x4be/0x16b0
[ 3443.179941] pm_runtime_work+0xca/0xf0
[ 3443.179955] process_one_work+0x188/0x3d0
[ 3443.179971] worker_thread+0x2b9/0x3c0
[ 3443.179984] kthread+0xfb/0x220
[ 3443.180001] ? __pfx_worker_thread+0x10/0x10
[ 3443.180013] ? __pfx_kthread+0x10/0x10
[ 3443.180029] ret_from_fork+0x47/0x70
[ 3443.180044] ? __pfx_kthread+0x10/0x10
[ 3443.180059] ret_from_fork_asm+0x1a/0x30
User space thread:
[ 3443.180128] Call Trace:
[ 3443.180138] __schedule+0x4b6/0x16b0
[ 3443.180159] schedule+0x2f/0x140
[ 3443.180163] rpm_resume+0x1a7/0x6a0
[ 3443.180165] ? __pfx_autoremove_wake_function+0x10/0x10
[ 3443.180169] __pm_runtime_resume+0x56/0x90
[ 3443.180171] ivpu_rpm_get+0x28/0xb0 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.180181] ivpu_ipc_send_receive+0x6d/0x120 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.180193] ? free_frozen_pages+0x395/0x670
[ 3443.180199] ? __free_pages+0xa7/0xc0
[ 3443.180202] ivpu_jsm_hws_destroy_cmdq+0x76/0xf0 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.180213] ? locks_dispose_list+0x6c/0xa0
[ 3443.180219] ? kmem_cache_free+0x342/0x470
[ 3443.180222] ? vm_area_free+0x19/0x30
[ 3443.180225] ? xas_load+0x17/0xf0
[ 3443.180229] ? xa_load+0x72/0xb0
[ 3443.180230] ivpu_cmdq_unregister.isra.0+0xb1/0x100 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.180241] ivpu_cmdq_destroy_ioctl+0x8d/0x130 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.180251] ? __pfx_ivpu_cmdq_destroy_ioctl+0x10/0x10 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.180260] drm_ioctl_kernel+0xb3/0x110
[ 3443.180265] drm_ioctl+0x2ca/0x580
[ 3443.180266] ? __pfx_ivpu_cmdq_destroy_ioctl+0x10/0x10 [intel_vpu a9bd091a97f28f0235f161316b29f8234f437295]
[ 3443.180275] ? __fput+0x1ae/0x2f0
[ 3443.180279] ? kmem_cache_free+0x342/0x470
[ 3443.180282] __x64_sys_ioctl+0xa9/0xe0
[ 3443.180286] x64_sys_call+0x13b7/0x26f0
[ 3443.180289] do_syscall_64+0x62/0x180
[ 3443.180291] entry_SYSCALL_64_after_hwframe+0x71/0x79
Fixes: 465a3914b254 ("accel/ivpu: Add API for command queue create/destroy/submit")
Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://lore.kernel.org/r/20250425093341.2202895-1-jacek.lawrynowicz@linux.intel.com
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Increase JMS message state dump command timeout to 100 ms. On some
platforms, the FW may take a bit longer than 50 ms to dump its state
to the log buffer and we don't want to miss any debug info during TDR.
Fixes: 5e162f872d7a ("accel/ivpu: Add FW state dump on TDR")
Cc: stable@vger.kernel.org # v6.13+
Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://lore.kernel.org/r/20250425092822.2194465-1-jacek.lawrynowicz@linux.intel.com
|
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A few ASUS models use the ALC256_FIXUP_ASUS_HEADSET_MODE although they
have no built-in mic pin on NID 0x13, as found in the commit
c1732ede5e80 ("ALSA: hda/realtek - Fix headset and mic on several Asus
laptops with ALC256"). This was relatively harmless in the past as
NID 0x13 was assigned as the secondary mic. But since the fix for the
pin sort order, this pin became the primary one, hence user started
noticing the broken input, and we've fixed already for a few ASUS
models to switch to ALC256_FIXUP_ASUS_MIC_NO_PRESENCE.
This patch corrects the other ASUS models to use the right quirk entry
for fixing the built-in mic regression. Here we cover X541SA
(1043:12e0), X541UV (1043:12f0), Z550SA (1043:13bf0) and X555UB
(1043:1ccd).
Fixes: 3b4309546b48 ("ALSA: hda: Fix headset detection failure due to unstable sort")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=220058
Link: https://patch.msgid.link/20250430053210.31776-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
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Opt_err is not used in EROFS, we can remove it.
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Reviewed-by: Gao Xiang <xiang@kernel.org>
Link: https://lore.kernel.org/r/20250429075056.689570-1-lihongbo22@huawei.com
Signed-off-by: Gao Xiang <xiang@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"This fixes a regression in scompress"
* tag 'v6.15-p6' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: scompress - increment scomp_scratch_users when already allocated
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The precomputed value for the NAND_READ_LOCATION_2 register should be
stored in 'snandc->regs->read_location2'.
Fix the qcom_spi_set_read_loc_first() function accordingly.
Fixes: 7304d1909080 ("spi: spi-qpic: add driver for QCOM SPI NAND flash Interface")
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Reviewed-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Link: https://patch.msgid.link/20250428-qpic-snand-readloc2-fix-v1-1-50ce0877ff72@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
Depending on the architecture __ffs() returns either an 'unsigned long'
or 'unsigned int' result. Compile-testing this driver on targets that
use the latter produces a warning:
sound/soc/intel/catpt/dsp.c: In function 'catpt_dsp_set_srampge':
sound/soc/intel/catpt/dsp.c:181:44: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'u32' {aka 'unsigned int'} [-Werror=format=]
181 | dev_dbg(cdev->dev, "sanitize block %ld: off 0x%08x\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Change the type of the local variable to match the format string and
avoid the warning on any architecture.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250429073545.3558494-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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If any address or port is changed, update it in all packets and recalculate
checksum.
Fixes: 9fd1ff5d2ac7 ("udp: Support UDP fraglist GRO/GSO.")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250426153210.14044-1-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Vladimir Oltean says:
====================
Fix Felix DSA taprio gates after clock jump
Richie Pearn presented a reproducible situation where traffic would get
blocked on the NXP LS1028A switch if a certain taprio schedule was
applied, and stepping the PTP clock would take place. The latter event
is an expected initial occurrence, but also at runtime, for example when
transitioning from one grandmaster to another.
The issue is completely described in patch 1/4, which also contains
the fix, but it has left me with some doubts regarding the need for
vsc9959_tas_clock_adjust() in general.
In order to prove to myself that vsc9959_tas_clock_adjust() is needed in
general, I have written a selftest for the tc-taprio data path in patch
4/4. On the LS1028A, we can clearly see the following failures without
that function:
INFO: Forcing a backward clock jump
TEST: ping [FAIL]
INFO: Setting up taprio after PTP
TEST: In band with gate [FAIL]
Reception of 100 packets failed
TEST: Out of band with gate [FAIL]
Reception of 100 packets failed
As for testing my fix from patch 1/4, that was quite a bit more complex
to do automatically. In fact, I couldn't find any other schedule that
would fail to be updated by vsc9959_tas_clock_adjust() as cleanly as
the schedule from Richie, so I've added that specific schedule as the
test_clock_jump_backward() test.
The test ordering is also (unfortunately) very strategic. Running the
selftest to the end dirties the GCL RAM, and when running
test_clock_jump_backward() once again, the GCL entries won't be all
zeroes as they were the first time around. They will contain bits and
pieces of old schedules, making it very challenging to make it fail.
Thus, test_clock_jump_backward() is the first in the test suite, and
without patch 1/4, it is only supposed to fail the _first_ time when
running after a clean boot.
====================
Link: https://patch.msgid.link/20250426144859.3128352-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a forwarding path test for tc-taprio, based on isochron. This is
specifically intended for NICs with an offloaded data path (switchdev/DSA)
and requires taprio 'flags 2'. Also, $h1 and $h2 must support hardware
timestamping, and $h1 tc-etf offload, for isochron to work.
Packets received by a switch while the egress port has a taprio schedule
with an open gate for the traffic class must be sent right away.
Packets received by the switch while the traffic class gate must be
delayed until it opens.
Packets received by the switch must be dropped if the gate for the
traffic class never opens.
Packets should pass if the maximum SDU for the traffic class allows it,
and should be dropped otherwise.
The schedule should auto-update itself if clock jumps take place while
taprio is installed. Repeat most of the above tests after forcing two
clock jumps, one backwards (in Jan 1970) and one back into the present.
Symlink it from tools/testing/selftests/drivers/net/dsa, because usually
DSA ports have the same MAC address, and we need STABLE_MAC_ADDRS=yes
from its forwarding.config for the test to run successfully.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250426144859.3128352-5-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Make out-of-band testing (send a packet when its traffic class gate is
closed, expecting it to be delayed) more predictable by allowing the
window size to be customized by isochron_do().
From man isochron-send, the window size alters the advance time (the
delta between the transmission time of the packet, and its expected TX
time when using SO_TXTIME or tc-taprio on the sender). In absence of the
argument, isochron-send defaults to maximizing the advance time (making
it equal to the cycle length).
The default behavior is exactly what is problematic. An advance time
that is too large will make packets intended to be out-of-band still be
potentially in-band with an open gate from the schedule's previous cycle.
We need to allow that advance time to be reduced.
Perhaps a bit confusingly, isochron_do() has a shift_time argument
currently, but that does not help here. The shift time shifts both the
user space wakeup time and the expected TX time by equal amounts, it is
unable of bringing them closer to one another.
Set the window size properly for the Ocelot PSFP selftest as well.
That used to work due to a very carefully chosen SHIFT_TIME_NS.
I've re-tested that the test still works properly.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250426144859.3128352-4-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This snippet will be necessary for a future isochron-based test, so
provide a simpler high-level interface for counting the received
packets.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250426144859.3128352-3-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Simplest setup to reproduce the issue: connect 2 ports of the
LS1028A-RDB together (eno0 with swp0) and run:
$ ip link set eno0 up && ip link set swp0 up
$ tc qdisc replace dev swp0 parent root handle 100 taprio num_tc 8 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 map 0 1 2 3 4 5 6 7 \
base-time 0 sched-entry S 20 300000 sched-entry S 10 200000 \
sched-entry S 20 300000 sched-entry S 48 200000 \
sched-entry S 20 300000 sched-entry S 83 200000 \
sched-entry S 40 300000 sched-entry S 00 200000 flags 2
$ ptp4l -i eno0 -f /etc/linuxptp/configs/gPTP.cfg -m &
$ ptp4l -i swp0 -f /etc/linuxptp/configs/gPTP.cfg -m
One will observe that the PTP state machine on swp0 starts
synchronizing, then it attempts to do a clock step, and after that, it
never fails to recover from the condition below.
ptp4l[82.427]: selected best master clock 00049f.fffe.05f627
ptp4l[82.428]: port 1 (swp0): MASTER to UNCALIBRATED on RS_SLAVE
ptp4l[83.252]: port 1 (swp0): UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED
ptp4l[83.886]: rms 4537731277 max 9075462553 freq -18518 +/- 11467 delay 818 +/- 0
ptp4l[84.170]: timed out while polling for tx timestamp
ptp4l[84.171]: increasing tx_timestamp_timeout or increasing kworker priority may correct this issue, but a driver bug likely causes it
ptp4l[84.172]: port 1 (swp0): send peer delay request failed
ptp4l[84.173]: port 1 (swp0): clearing fault immediately
ptp4l[84.269]: port 1 (swp0): SLAVE to LISTENING on INIT_COMPLETE
ptp4l[85.303]: timed out while polling for tx timestamp
ptp4l[84.171]: increasing tx_timestamp_timeout or increasing kworker priority may correct this issue, but a driver bug likely causes it
ptp4l[84.172]: port 1 (swp0): send peer delay request failed
ptp4l[84.173]: port 1 (swp0): clearing fault immediately
ptp4l[84.269]: port 1 (swp0): SLAVE to LISTENING on INIT_COMPLETE
ptp4l[85.303]: timed out while polling for tx timestamp
ptp4l[85.304]: increasing tx_timestamp_timeout or increasing kworker priority may correct this issue, but a driver bug likely causes it
ptp4l[85.305]: port 1 (swp0): send peer delay response failed
ptp4l[85.306]: port 1 (swp0): clearing fault immediately
ptp4l[86.304]: timed out while polling for tx timestamp
A hint is given by the non-zero statistics for dropped packets which
were expecting hardware TX timestamps:
$ ethtool --include-statistics -T swp0
(...)
Statistics:
tx_pkts: 30
tx_lost: 11
tx_err: 0
We know that when PTP clock stepping takes place (from ocelot_ptp_settime64()
or from ocelot_ptp_adjtime()), vsc9959_tas_clock_adjust() is called.
Another interesting hint is that placing an early return in
vsc9959_tas_clock_adjust(), so as to neutralize this function, fixes the
issue and TX timestamps are no longer dropped.
The debugging function written by me and included below is intended to
read the GCL RAM, after the admin schedule became operational, through
the two status registers available for this purpose:
QSYS_GCL_STATUS_REG_1 and QSYS_GCL_STATUS_REG_2.
static void vsc9959_print_tas_gcl(struct ocelot *ocelot)
{
u32 val, list_length, interval, gate_state;
int i, err;
err = read_poll_timeout(ocelot_read, val,
!(val & QSYS_PARAM_STATUS_REG_8_CONFIG_PENDING),
10, 100000, false, ocelot, QSYS_PARAM_STATUS_REG_8);
if (err) {
dev_err(ocelot->dev,
"Failed to wait for TAS config pending bit to clear: %pe\n",
ERR_PTR(err));
return;
}
val = ocelot_read(ocelot, QSYS_PARAM_STATUS_REG_3);
list_length = QSYS_PARAM_STATUS_REG_3_LIST_LENGTH_X(val);
dev_info(ocelot->dev, "GCL length: %u\n", list_length);
for (i = 0; i < list_length; i++) {
ocelot_rmw(ocelot,
QSYS_GCL_STATUS_REG_1_GCL_ENTRY_NUM(i),
QSYS_GCL_STATUS_REG_1_GCL_ENTRY_NUM_M,
QSYS_GCL_STATUS_REG_1);
interval = ocelot_read(ocelot, QSYS_GCL_STATUS_REG_2);
val = ocelot_read(ocelot, QSYS_GCL_STATUS_REG_1);
gate_state = QSYS_GCL_STATUS_REG_1_GATE_STATE_X(val);
dev_info(ocelot->dev, "GCL entry %d: states 0x%x interval %u\n",
i, gate_state, interval);
}
}
Calling it from two places: after the initial QSYS_TAS_PARAM_CFG_CTRL_CONFIG_CHANGE
performed by vsc9959_qos_port_tas_set(), and after the one done by
vsc9959_tas_clock_adjust(), I notice the following difference.
From the tc-taprio process context, where the schedule was initially
configured, the GCL looks like this:
mscc_felix 0000:00:00.5: GCL length: 8
mscc_felix 0000:00:00.5: GCL entry 0: states 0x20 interval 300000
mscc_felix 0000:00:00.5: GCL entry 1: states 0x10 interval 200000
mscc_felix 0000:00:00.5: GCL entry 2: states 0x20 interval 300000
mscc_felix 0000:00:00.5: GCL entry 3: states 0x48 interval 200000
mscc_felix 0000:00:00.5: GCL entry 4: states 0x20 interval 300000
mscc_felix 0000:00:00.5: GCL entry 5: states 0x83 interval 200000
mscc_felix 0000:00:00.5: GCL entry 6: states 0x40 interval 300000
mscc_felix 0000:00:00.5: GCL entry 7: states 0x0 interval 200000
But from the ptp4l clock stepping process context, when the
vsc9959_tas_clock_adjust() hook is called, the GCL RAM of the
operational schedule now looks like this:
mscc_felix 0000:00:00.5: GCL length: 8
mscc_felix 0000:00:00.5: GCL entry 0: states 0x0 interval 0
mscc_felix 0000:00:00.5: GCL entry 1: states 0x0 interval 0
mscc_felix 0000:00:00.5: GCL entry 2: states 0x0 interval 0
mscc_felix 0000:00:00.5: GCL entry 3: states 0x0 interval 0
mscc_felix 0000:00:00.5: GCL entry 4: states 0x0 interval 0
mscc_felix 0000:00:00.5: GCL entry 5: states 0x0 interval 0
mscc_felix 0000:00:00.5: GCL entry 6: states 0x0 interval 0
mscc_felix 0000:00:00.5: GCL entry 7: states 0x0 interval 0
I do not have a formal explanation, just experimental conclusions.
It appears that after triggering QSYS_TAS_PARAM_CFG_CTRL_CONFIG_CHANGE
for a port's TAS, the GCL entry RAM is updated anyway, despite what the
documentation claims: "Specify the time interval in
QSYS::GCL_CFG_REG_2.TIME_INTERVAL. This triggers the actual RAM
write with the gate state and the time interval for the entry number
specified". We don't touch that register (through vsc9959_tas_gcl_set())
from vsc9959_tas_clock_adjust(), yet the GCL RAM is updated anyway.
It seems to be updated with effectively stale memory, which in my
testing can hold a variety of things, including even pieces of the
previously applied schedule, for particular schedule lengths.
As such, in most circumstances it is very difficult to pinpoint this
issue, because the newly updated schedule would "behave strangely",
but ultimately might still pass traffic to some extent, due to some
gate entries still being present in the stale GCL entry RAM. It is easy
to miss.
With the particular schedule given at the beginning, the GCL RAM
"happens" to be reproducibly rewritten with all zeroes, and this is
consistent with what we see: when the time-aware shaper has gate entries
with all gates closed, traffic is dropped on TX, no wonder we can't
retrieve TX timestamps.
Rewriting the GCL entry RAM when reapplying the new base time fixes the
observed issue.
Fixes: 8670dc33f48b ("net: dsa: felix: update base time of time-aware shaper when adjusting PTP time")
Reported-by: Richie Pearn <richard.pearn@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250426144859.3128352-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
If the mtk_poll_rx() function detects the MTK_RESETTING flag, it will
jump to release_desc and refill the high word of the SDP on the 4GB RFB.
Subsequently, mtk_rx_clean will process an incorrect SDP, leading to a
panic.
Add patch from MediaTek's SDK to resolve this.
Fixes: 2d75891ebc09 ("net: ethernet: mtk_eth_soc: support 36-bit DMA addressing on MT7988")
Link: https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/71f47ea785699c6aa3b922d66c2bdc1a43da25b1
Signed-off-by: Chad Monroe <chad@monroe.io>
Link: https://patch.msgid.link/4adc2aaeb0fb1b9cdc56bf21cf8e7fa328daa345.1745715843.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Commit 1a931c4f5e68 ("igc: add lock preventing multiple simultaneous PTM
transactions") added a new mutex to protect concurrent PTM transactions.
This lock is acquired in igc_ptp_reset() in order to ensure the PTM
registers are properly disabled after a device reset.
The flow where the lock is acquired already holds a spinlock, so acquiring
a mutex leads to a sleep-while-locking bug, reported both by smatch,
and the kernel test robot.
The critical section in igc_ptp_reset() does correctly use the
readx_poll_timeout_atomic variants, but the standard PTM flow uses regular
sleeping variants. This makes converting the mutex to a spinlock a bit
tricky.
Instead, re-order the locking in igc_ptp_reset. Acquire the mutex first,
and then the tmreg_lock spinlock. This is safe because there is no other
ordering dependency on these locks, as this is the only place where both
locks were acquired simultaneously. Indeed, any other flow acquiring locks
in that order would be wrong regardless.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Fixes: 1a931c4f5e68 ("igc: add lock preventing multiple simultaneous PTM transactions")
Link: https://lore.kernel.org/intel-wired-lan/Z_-P-Hc1yxcw0lTB@stanley.mountain/
Link: https://lore.kernel.org/intel-wired-lan/202504211511.f7738f5d-lkp@intel.com/T/#u
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
