platform/kernel/linux-rpi.git
20 months agoMerge branches 'pm-cpuidle', 'pm-core' and 'pm-sleep'
Rafael J. Wysocki [Wed, 15 Feb 2023 14:59:48 +0000 (15:59 +0100)]
Merge branches 'pm-cpuidle', 'pm-core' and 'pm-sleep'

Merge cpuidle updates, PM core updates and changes related to system
sleep handling for 6.3-rc1:

 - Make the TEO cpuidle governor check CPU utilization in order to refine
   idle state selection (Kajetan Puchalski).

 - Make Kconfig select the haltpoll cpuidle governor when the haltpoll
   cpuidle driver is selected and replace a default_idle() call in that
   driver with arch_cpu_idle() which allows MWAIT to be used (Li
   RongQing).

 - Add Emerald Rapids Xeon support to the intel_idle driver (Artem
   Bityutskiy).

 - Add ARCH_SUSPEND_POSSIBLE dependencies for ARMv4 cpuidle drivers to
   avoid randconfig build failures (Arnd Bergmann).

 - Make kobj_type structures used in the cpuidle sysfs interface
   constant (Thomas Weißschuh).

 - Make the cpuidle driver registration code update microsecond values
   of idle state parameters in accordance with their nanosecond values
   if they are provided (Rafael Wysocki).

 - Make the PSCI cpuidle driver prevent topology CPUs from being
   suspended on PREEMPT_RT (Krzysztof Kozlowski).

 - Document that pm_runtime_force_suspend() cannot be used with
   DPM_FLAG_SMART_SUSPEND (Richard Fitzgerald).

 - Add EXPORT macros for exporting PM functions from drivers (Richard
   Fitzgerald).

 - Drop "select SRCU" from system sleep Kconfig (Paul E. McKenney).

 - Remove /** from non-kernel-doc comments in hibernation code (Randy
   Dunlap).

* pm-cpuidle:
  cpuidle: psci: Do not suspend topology CPUs on PREEMPT_RT
  cpuidle: driver: Update microsecond values of state parameters as needed
  cpuidle: sysfs: make kobj_type structures constant
  cpuidle: add ARCH_SUSPEND_POSSIBLE dependencies
  intel_idle: add Emerald Rapids Xeon support
  cpuidle-haltpoll: Replace default_idle() with arch_cpu_idle()
  cpuidle-haltpoll: select haltpoll governor
  cpuidle: teo: Introduce util-awareness
  cpuidle: teo: Optionally skip polling states in teo_find_shallower_state()

* pm-core:
  PM: Add EXPORT macros for exporting PM functions
  PM: runtime: Document that force_suspend() is incompatible with SMART_SUSPEND

* pm-sleep:
  PM: sleep: Remove "select SRCU"
  PM: hibernate: swap: don't use /** for non-kernel-doc comments

20 months agoDocumentation: amd-pstate: disambiguate user space sections
Bagas Sanjaya [Wed, 15 Feb 2023 12:32:53 +0000 (19:32 +0700)]
Documentation: amd-pstate: disambiguate user space sections

kernel test robot reported htmldocs warning:

Documentation/admin-guide/pm/amd-pstate.rst:343: WARNING: duplicate label admin-guide/pm/amd-pstate:user space interface in ``sysfs``, other instance in Documentation/admin-guide/pm/amd-pstate.rst

The documentation contains two sections with the same "User Space Interface
in ``sysfs``" title. The first one deals with per-policy sysfs and the
second one is about general attributes (currently only global attributes
are documented).

Disambiguate title text of both sections to fix the warning.

Link: https://lore.kernel.org/linux-doc/202302151041.0SWs1RHK-lkp@intel.com/
Fixes: b9e6a2d47b2565 ("Documentation: amd-pstate: introduce new global sysfs attributes")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
20 months agocpufreq: amd-pstate: Fix invalid write to MSR_AMD_CPPC_REQ
Wyes Karny [Tue, 14 Feb 2023 07:58:11 +0000 (07:58 +0000)]
cpufreq: amd-pstate: Fix invalid write to MSR_AMD_CPPC_REQ

`amd_pstate_set_epp` function uses `cppc_req_cached` and `epp` variable
to update the MSR_AMD_CPPC_REQ register for AMD MSR systems. The recent
commit 7cca9a9851a5 ("cpufreq: amd-pstate: avoid uninitialized variable
use") changed the sequence of updating cppc_req_cached and writing the
MSR_AMD_CPPC_REQ. Therefore while switching from powersave to
performance governor and vice-versa in active mode MSR_AMD_CPPC_REQ is
set with the previous cached value. To fix this: first update the
`cppc_req_cached` variable and then call `amd_pstate_set_epp` function.

 - Before commit 7cca9a9851a5 ("cpufreq: amd-pstate: avoid uninitialized
   variable use"):

With powersave governor:
[    1.652743] amd_pstate_epp_init: writing to cppc_req_cached = 0x1eff
[    1.652744] amd_pstate_set_epp: writing cppc_req_cached = 0x1eff
[    1.652746] amd_pstate_set_epp: writing min_perf = 30, des_perf = 0, max_perf = 255, epp = 0

Changing to performance governor:
[  300.493842] amd_pstate_epp_init: writing to cppc_req_cached = 0xffff
[  300.493846] amd_pstate_set_epp: writing cppc_req_cached = 0xffff
[  300.493847] amd_pstate_set_epp: writing min_perf = 255, des_perf = 0, max_perf = 255, epp = 0

 - After commit 7cca9a9851a5 ("cpufreq: amd-pstate: avoid uninitialized
   variable use"):

With powersave governor:
[    1.646037] amd_pstate_set_epp: writing cppc_req_cached = 0xffff
[    1.646038] amd_pstate_set_epp: writing min_perf = 255, des_perf = 0, max_perf = 255, epp = 0
[    1.646042] amd_pstate_epp_init: writing to cppc_req_cached = 0x1eff

Changing to performance governor:
[  687.117401] amd_pstate_set_epp: writing cppc_req_cached = 0x1eff
[  687.117405] amd_pstate_set_epp: writing min_perf = 30, des_perf = 0, max_perf = 255, epp = 0
[  687.117419] amd_pstate_epp_init: writing to cppc_req_cached = 0xffff

 - After this fix:

With powersave governor:
[    2.525717] amd_pstate_epp_init: writing to cppc_req_cached = 0x1eff
[    2.525720] amd_pstate_set_epp: writing cppc_req_cached = 0x1eff
[    2.525722] amd_pstate_set_epp: writing min_perf = 30, des_perf = 0, max_perf = 255, epp = 0

Changing to performance governor:
[ 3440.152468] amd_pstate_epp_init: writing to cppc_req_cached = 0xffff
[ 3440.152473] amd_pstate_set_epp: writing cppc_req_cached = 0xffff
[ 3440.152474] amd_pstate_set_epp: writing min_perf = 255, des_perf = 0, max_perf = 255, epp = 0

Fixes: 7cca9a9851a5 ("cpufreq: amd-pstate: avoid uninitialized variable use")
Signed-off-by: Wyes Karny <wyes.karny@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
20 months agoMerge tag 'cpufreq-arm-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel...
Rafael J. Wysocki [Tue, 14 Feb 2023 14:25:07 +0000 (15:25 +0100)]
Merge tag 'cpufreq-arm-updates-6.3' of git://git./linux/kernel/git/vireshk/pm

Pull cpufreq ARM updates for 6.3 from Viresh Kumar:

"- Enable thermal cooling for Tegra194 (Yi-Wei Wang).

 - Register module device table and add missing compatibles for
   cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss).

 - Various dt binding updates for qcom-cpufreq-nvmem and opp-v2-kryo-cpu
   (Christian Marangi)."

* tag 'cpufreq-arm-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum
  dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional
  dt-bindings: cpufreq: qcom-cpufreq-nvmem: specify supported opp tables
  dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM8550 compatible
  dt-bindings: cpufreq: cpufreq-qcom-hw: Add missing compatibles
  cpufreq: mediatek-hw: Register to module device table
  cpufreq: tegra194: Enable CPUFREQ thermal cooling

20 months agoMerge back cpufreq material for 6.3-rc1.
Rafael J. Wysocki [Tue, 14 Feb 2023 14:22:31 +0000 (15:22 +0100)]
Merge back cpufreq material for 6.3-rc1.

20 months agocpufreq: qcom-hw: Add missing null pointer check
Manivannan Sadhasivam [Tue, 14 Feb 2023 09:41:15 +0000 (15:11 +0530)]
cpufreq: qcom-hw: Add missing null pointer check

of_device_get_match_data() may return NULL, so add a check to prevent
potential null pointer dereference.

Issue reported by Qualcomm's internal static analysis tool.

Fixes: 4f7961706c63 ("cpufreq: qcom-hw: Move soc_data to struct qcom_cpufreq")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
20 months agodt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum
Christian Marangi [Wed, 8 Feb 2023 15:39:13 +0000 (16:39 +0100)]
dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum

Enlarge opp-supported-hw maximum value. In recent SoC we started
matching more bit and we currently match mask of 112. The old maximum of
7 was good for old SoC that didn't had complex id, but now this is
limiting and we need to enlarge it to support more variants.

Document all the various mask that can be used and limit them to only
reasonable values instead of using a generic maximum limit.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
20 months agodt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional
Christian Marangi [Wed, 8 Feb 2023 15:39:12 +0000 (16:39 +0100)]
dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional

The qcom-cpufreq-nvmem driver supports 2 kind of devices:
- pre-cpr that doesn't have power-domains and base everything on nvmem
  cells and multiple named microvolt bindings.
  Doesn't need required-opp binding in the opp nodes as they are only
  used for genpd based devices.
- cpr-based that require power-domain in the cpu nodes and use various
  source to decide the correct voltage and freq
  Require required-opp binding since they need to be linked to the
  related opp-level.

When the schema was introduced, it was wrongly set to always require these
binding but this is not the case for pre-cpr devices.

Make the power-domain and the required-opp optional and set them required
only for qcs404 based devices.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
20 months agodt-bindings: cpufreq: qcom-cpufreq-nvmem: specify supported opp tables
Christian Marangi [Wed, 8 Feb 2023 15:39:11 +0000 (16:39 +0100)]
dt-bindings: cpufreq: qcom-cpufreq-nvmem: specify supported opp tables

Add additional info on what opp tables the defined devices in this schema
supports (operating-points-v2-kryo-cpu and operating-points-v2-qcom-level)
and reference them.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
20 months agoPM: Add EXPORT macros for exporting PM functions
Richard Fitzgerald [Mon, 13 Feb 2023 16:50:05 +0000 (16:50 +0000)]
PM: Add EXPORT macros for exporting PM functions

Add a pair of macros for exporting functions only if CONFIG_PM
is enabled.

The naming follows the style of the standard EXPORT_SYMBOL_*()
macros that they replace.

Sometimes a module wants to export PM functions directly to other
drivers, not a complete struct dev_pm_ops. A typical example is
where a core library exports the generic (shared) implementation
and calling code wraps one or more of these in custom code.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
20 months agocpuidle: psci: Do not suspend topology CPUs on PREEMPT_RT
Krzysztof Kozlowski [Wed, 25 Jan 2023 11:34:18 +0000 (12:34 +0100)]
cpuidle: psci: Do not suspend topology CPUs on PREEMPT_RT

The runtime Power Management of CPU topology is not compatible with
PREEMPT_RT:

 1. Core cpuidle path disables IRQs.
 2. Core cpuidle calls cpuidle-psci.
 3. cpuidle-psci in __psci_enter_domain_idle_state() calls
    pm_runtime_put_sync_suspend() and pm_runtime_get_sync() which use
    spinlocks (which are sleeping on PREEMPT_RT).

Deep sleep modes are not a priority of Realtime kernels because the
latencies might become unpredictable.  On the other hand the PSCI CPU
idle power domain is a parent of other devices and power domain
controllers, thus it cannot be simply skipped (e.g. on Qualcomm SM8250).

Disable the idle callbacks in cpuidle-psci and mark the domain as
always on.  This is a trade-off between making PREEMPT_RT working and
still having a proper power domain hierarchy in the system.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Adrien Thierry <athierry@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
20 months agoMIPS: loongson32: Drop obsolete cpufreq platform device
Keguang Zhang [Fri, 10 Feb 2023 11:09:34 +0000 (19:09 +0800)]
MIPS: loongson32: Drop obsolete cpufreq platform device

The obsolete cpufreq driver was removed, drop the platform device
and data accordingly.

Link: https://lore.kernel.org/all/20230112135342.3927338-1-keguang.zhang@gmail.com
Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
20 months agocpuidle: driver: Update microsecond values of state parameters as needed
Rafael J. Wysocki [Tue, 7 Feb 2023 19:59:59 +0000 (20:59 +0100)]
cpuidle: driver: Update microsecond values of state parameters as needed

If the cpuidle driver provides the target residency and exit latency in
nanoseconds, the corresponding values in microseconds need to be set to
reflect the provided numbers in order for the sysfs interface to show
them correctly, so make __cpuidle_driver_init() do that.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
20 months agoLinux 6.2-rc8
Linus Torvalds [Sun, 12 Feb 2023 22:10:17 +0000 (14:10 -0800)]
Linux 6.2-rc8

20 months agoMAINTAINERS: Add myself as maintainer for arch/sh (SUPERH)
John Paul Adrian Glaubitz [Tue, 7 Feb 2023 16:57:15 +0000 (17:57 +0100)]
MAINTAINERS: Add myself as maintainer for arch/sh (SUPERH)

Both Rich Felker and Yoshinori Sato haven't done any work on arch/sh
for a while. As I have been maintaining Debian's sh4 port since 2014,
I am interested to keep the architecture alive.

Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
20 months agoMerge tag 'trace-v6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Sun, 12 Feb 2023 21:52:17 +0000 (13:52 -0800)]
Merge tag 'trace-v6.2-rc7' of git://git./linux/kernel/git/trace/linux-trace

Pull tracing fix from Steven Rostedt:
 "Fix showing of TASK_COMM_LEN instead of its value

  The TASK_COMM_LEN was converted from a macro into an enum so that BTF
  would have access to it. But this unfortunately caused TASK_COMM_LEN
  to display in the format fields of trace events, as they are created
  by the TRACE_EVENT() macro and such, macros convert to their values,
  where as enums do not.

  To handle this, instead of using the field itself to be display, save
  the value of the array size as another field in the trace_event_fields
  structure, and use that instead.

  Not only does this fix the issue, but also converts the other trace
  events that have this same problem (but were not breaking tooling).

  With this change, the original work around b3bc8547d3be6 ("tracing:
  Have TRACE_DEFINE_ENUM affect trace event types as well") could be
  reverted (but that should be done in the merge window)"

* tag 'trace-v6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix TASK_COMM_LEN in trace event format file

20 months agoMerge tag 'for-6.2-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sun, 12 Feb 2023 19:26:36 +0000 (11:26 -0800)]
Merge tag 'for-6.2-rc7-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - one more fix for a tree-log 'write time corruption' report, update
   the last dir index directly and don't keep in the log context

 - do VFS-level inode lock around FIEMAP to prevent a deadlock with
   concurrent fsync, the extent-level lock is not sufficient

 - don't cache a single-device filesystem device to avoid cases when a
   loop device is reformatted and the entry gets stale

* tag 'for-6.2-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: free device in btrfs_close_devices for a single device filesystem
  btrfs: lock the inode in shared mode before starting fiemap
  btrfs: simplify update of last_dir_index_offset when logging a directory

20 months agoMerge tag 'usb-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 12 Feb 2023 19:18:57 +0000 (11:18 -0800)]
Merge tag 'usb-6.2-rc8' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are 2 small USB driver fixes that resolve some reported
  regressions and one new device quirk. Specifically these are:

   - new quirk for Alcor Link AK9563 smartcard reader

   - revert of u_ether gadget change in 6.2-rc1 that caused problems

   - typec pin probe fix

  All of these have been in linux-next with no reported problems"

* tag 'usb-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: core: add quirk for Alcor Link AK9563 smartcard reader
  usb: typec: altmodes/displayport: Fix probe pin assign check
  Revert "usb: gadget: u_ether: Do not make UDC parent of the net device"

20 months agoMerge tag 'efi-fixes-for-v6.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 12 Feb 2023 19:13:29 +0000 (11:13 -0800)]
Merge tag 'efi-fixes-for-v6.2-4' of git://git./linux/kernel/git/efi/efi

Pull EFI fix from Ard Biesheuvel:
 "A fix from Darren to widen the SMBIOS match for detecting Ampere Altra
  machines with problematic firmware. In the mean time, we are working
  on a more precise check, but this is still work in progress"

* tag 'efi-fixes-for-v6.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  arm64: efi: Force the use of SetVirtualAddressMap() on eMAG and Altra Max machines

20 months agoMerge tag 'powerpc-6.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sun, 12 Feb 2023 19:08:15 +0000 (11:08 -0800)]
Merge tag 'powerpc-6.2-5' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix interrupt exit race with security mitigation switching.

 - Don't select ARCH_WANTS_NO_INSTR until warnings are fixed.

 - Build fix for CONFIG_NUMA=n.

Thanks to Nicholas Piggin, Randy Dunlap, and Sachin Sant.

* tag 'powerpc-6.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s/interrupt: Fix interrupt exit race with security mitigation switch
  powerpc/kexec_file: fix implicit decl error
  powerpc: Don't select ARCH_WANTS_NO_INSTR

20 months agoFix page corruption caused by racy check in __free_pages
David Chen [Thu, 9 Feb 2023 17:48:28 +0000 (17:48 +0000)]
Fix page corruption caused by racy check in __free_pages

When we upgraded our kernel, we started seeing some page corruption like
the following consistently:

  BUG: Bad page state in process ganesha.nfsd  pfn:1304ca
  page:0000000022261c55 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x0 pfn:0x1304ca
  flags: 0x17ffffc0000000()
  raw: 0017ffffc0000000 ffff8a513ffd4c98 ffffeee24b35ec08 0000000000000000
  raw: 0000000000000000 0000000000000001 00000000ffffff7f 0000000000000000
  page dumped because: nonzero mapcount
  CPU: 0 PID: 15567 Comm: ganesha.nfsd Kdump: loaded Tainted: P    B      O      5.10.158-1.nutanix.20221209.el7.x86_64 #1
  Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/05/2016
  Call Trace:
   dump_stack+0x74/0x96
   bad_page.cold+0x63/0x94
   check_new_page_bad+0x6d/0x80
   rmqueue+0x46e/0x970
   get_page_from_freelist+0xcb/0x3f0
   ? _cond_resched+0x19/0x40
   __alloc_pages_nodemask+0x164/0x300
   alloc_pages_current+0x87/0xf0
   skb_page_frag_refill+0x84/0x110
   ...

Sometimes, it would also show up as corruption in the free list pointer
and cause crashes.

After bisecting the issue, we found the issue started from commit
e320d3012d25 ("mm/page_alloc.c: fix freeing non-compound pages"):

if (put_page_testzero(page))
free_the_page(page, order);
else if (!PageHead(page))
while (order-- > 0)
free_the_page(page + (1 << order), order);

So the problem is the check PageHead is racy because at this point we
already dropped our reference to the page.  So even if we came in with
compound page, the page can already be freed and PageHead can return
false and we will end up freeing all the tail pages causing double free.

Fixes: e320d3012d25 ("mm/page_alloc.c: fix freeing non-compound pages")
Link: https://lore.kernel.org/lkml/BYAPR02MB448855960A9656EEA81141FC94D99@BYAPR02MB4488.namprd02.prod.outlook.com/
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@vger.kernel.org
Signed-off-by: Chunwei Chen <david.chen@nutanix.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
20 months agotracing: Fix TASK_COMM_LEN in trace event format file
Yafang Shao [Sun, 12 Feb 2023 15:13:03 +0000 (15:13 +0000)]
tracing: Fix TASK_COMM_LEN in trace event format file

After commit 3087c61ed2c4 ("tools/testing/selftests/bpf: replace open-coded 16 with TASK_COMM_LEN"),
the content of the format file under
/sys/kernel/tracing/events/task/task_newtask was changed from
  field:char comm[16];    offset:12;    size:16;    signed:0;
to
  field:char comm[TASK_COMM_LEN];    offset:12;    size:16;    signed:0;

John reported that this change breaks older versions of perfetto.
Then Mathieu pointed out that this behavioral change was caused by the
use of __stringify(_len), which happens to work on macros, but not on enum
labels. And he also gave the suggestion on how to fix it:
  :One possible solution to make this more robust would be to extend
  :struct trace_event_fields with one more field that indicates the length
  :of an array as an actual integer, without storing it in its stringified
  :form in the type, and do the formatting in f_show where it belongs.

The result as follows after this change,
$ cat /sys/kernel/tracing/events/task/task_newtask/format
        field:char comm[16];    offset:12;      size:16;        signed:0;

Link: https://lore.kernel.org/lkml/Y+QaZtz55LIirsUO@google.com/
Link: https://lore.kernel.org/linux-trace-kernel/20230210155921.4610-1-laoar.shao@gmail.com/
Link: https://lore.kernel.org/linux-trace-kernel/20230212151303.12353-1-laoar.shao@gmail.com
Cc: stable@vger.kernel.org
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Kajetan Puchalski <kajetan.puchalski@arm.com>
CC: Qais Yousef <qyousef@layalina.io>
Fixes: 3087c61ed2c4 ("tools/testing/selftests/bpf: replace open-coded 16 with TASK_COMM_LEN")
Reported-by: John Stultz <jstultz@google.com>
Debugged-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
20 months agoMerge tag 'spi-fix-v6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Linus Torvalds [Sun, 12 Feb 2023 00:39:05 +0000 (16:39 -0800)]
Merge tag 'spi-fix-v6.2-rc7' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A couple of hopefully final fixes for spi: one driver specific fix for
  an issue with very large transfers and a fix for an issue with the
  locking fixes in spidev merged earlier this release cycle which was
  missed"

* tag 'spi-fix-v6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: spidev: fix a recursive locking error
  spi: dw: Fix wrong FIFO level setting for long xfers

20 months agoMerge tag 'x86-urgent-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 11 Feb 2023 19:17:21 +0000 (11:17 -0800)]
Merge tag 'x86-urgent-2023-02-11' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Fix a kprobes bug, plus add a new Intel model number to the upstream
  <asm/intel-family.h> header for drivers to use"

* tag 'x86-urgent-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Add Lunar Lake M
  x86/kprobes: Fix 1 byte conditional jump target

20 months agoMerge tag 'locking-urgent-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 11 Feb 2023 19:11:18 +0000 (11:11 -0800)]
Merge tag 'locking-urgent-2023-02-11' of git://git./linux/kernel/git/tip/tip

Pull locking fix from Ingo Molnar:
 "Fix an rtmutex missed-wakeup bug"

* tag 'locking-urgent-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rtmutex: Ensure that the top waiter is always woken up

20 months agoMerge tag 'cxl-fixes-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Linus Torvalds [Sat, 11 Feb 2023 19:03:25 +0000 (11:03 -0800)]
Merge tag 'cxl-fixes-6.2' of git://git./linux/kernel/git/cxl/cxl

Pull cxl fixes from Dan Williams:
 "Two fixups for CXL (Compute Express Link) in presence of passthrough
  decoders.

  This primarily helps developers using the QEMU CXL emulation, but with
  the impending arrival of CXL switches these types of topologies will
  be of interest to end users.

   - Fix a crash when shutting down regions in the presence of
     passthrough decoders

   - Fix region creation to understand passthrough decoders instead of
     the narrower definition of passthrough ports"

* tag 'cxl-fixes-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/region: Fix passthrough-decoder detection
  cxl/region: Fix null pointer dereference for resetting decoder

20 months agoMerge tag 'libnvdimm-fixes-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 11 Feb 2023 18:58:36 +0000 (10:58 -0800)]
Merge tag 'libnvdimm-fixes-6.2' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fixes from Dan Williams:
 "A fix for an issue that could causes users to inadvertantly reserve
  too much capacity when debugging the KMSAN and persistent memory
  namespace, a lockdep fix, and a kernel-doc build warning:

   - Resolve the conflict between KMSAN and NVDIMM with respect to
     reserving pmem namespace / volume capacity for larger sizeof(struct
     page)

   - Fix a lockdep warning in the the NFIT code

   - Fix a kernel-doc build warning"

* tag 'libnvdimm-fixes-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  nvdimm: Support sizeof(struct page) > MAX_STRUCT_PAGE_SIZE
  ACPI: NFIT: fix a potential deadlock during NFIT teardown
  dax: super.c: fix kernel-doc bad line warning

20 months agoMerge tag 'fixes-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt...
Linus Torvalds [Sat, 11 Feb 2023 18:51:45 +0000 (10:51 -0800)]
Merge tag 'fixes-2023-02-11' of git://git./linux/kernel/git/rppt/memblock

Pull memblock revert from Mike Rapoport:
 "Revert 'mm: Always release pages to the buddy allocator in
  memblock_free_late()'

  The pages being freed by memblock_free_late() have already been
  initialized, but if they are in the deferred init range,
  __free_one_page() might access nearby uninitialized pages when trying
  to coalesce buddies, which will cause a crash.

  A proper fix will be more involved so revert this change for the time
  being"

* tag 'fixes-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."

20 months agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 10 Feb 2023 23:28:08 +0000 (15:28 -0800)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "Two clk driver fixes

   - Use devm_kasprintf() to avoid overflows when forming clk names in
     the Microchip PolarFire driver

   - Fix the pretty broken Ingenic JZ4760 M/N/OD calculation to actually
     work and find proper divisors"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: ingenic: jz4760: Update M/N/OD calculation algorithm
  clk: microchip: mpfs-ccc: Use devm_kasprintf() for allocating formatted strings

20 months agoMerge tag 'pinctrl-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Fri, 10 Feb 2023 23:02:16 +0000 (15:02 -0800)]
Merge tag 'pinctrl-v6.2-3' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Some assorted pin control fixes, the most interesting will be the
  Intel patch fixing a classic problem: laptop touchpad IRQs...

   - Some pin drive register fixes in the Mediatek driver.

   - Return proper error code in the Aspeed driver, and revert and
     ill-advised force-disablement patch that needs to be reworked.

   - Fix AMD driver debug output.

   - Fix potential NULL dereference in the Single driver.

   - Fix a group definition error in the Qualcomm SM8450 LPASS driver.

   - Restore pins used in direct IRQ mode in the Intel driver (This
     fixes some laptop touchpads!)"

* tag 'pinctrl-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: intel: Restore the pins that used to be in Direct IRQ mode
  pinctrl: qcom: sm8450-lpass-lpi: correct swr_rx_data group
  pinctrl: aspeed: Revert "Force to disable the function's signal"
  pinctrl: single: fix potential NULL dereference
  pinctrl: amd: Fix debug output for debounce time
  pinctrl: aspeed: Fix confusing types in return value
  pinctrl: mediatek: Fix the drive register definition of some Pins

20 months agoMerge tag 'pci-v6.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Linus Torvalds [Fri, 10 Feb 2023 22:18:48 +0000 (14:18 -0800)]
Merge tag 'pci-v6.2-fixes-2' of git://git./linux/kernel/git/pci/pci

Pull PCI fixes from Bjorn Helgaas:

 - Move to a shared PCI git tree (Bjorn Helgaas)

 - Add Krzysztof Wilczyński as another PCI maintainer (Lorenzo
   Pieralisi)

 - Revert a couple ASPM patches to fix suspend/resume regressions (Bjorn
   Helgaas)

* tag 'pci-v6.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  Revert "PCI/ASPM: Refactor L1 PM Substates Control Register programming"
  Revert "PCI/ASPM: Save L1 PM Substates Capability for suspend/resume"
  MAINTAINERS: Promote Krzysztof to PCI controller maintainer
  MAINTAINERS: Move to shared PCI tree

20 months agoRevert "PCI/ASPM: Refactor L1 PM Substates Control Register programming"
Bjorn Helgaas [Fri, 3 Feb 2023 19:57:39 +0000 (13:57 -0600)]
Revert "PCI/ASPM: Refactor L1 PM Substates Control Register programming"

This reverts commit 5e85eba6f50dc288c22083a7e213152bcc4b8208.

Thomas Witt reported that 5e85eba6f50d ("PCI/ASPM: Refactor L1 PM Substates
Control Register programming") broke suspend/resume on a Tuxedo
Infinitybook S 14 v5, which seems to use a Clevo L140CU Mainboard.

The main symptom is:

  iwlwifi 0000:02:00.0: Unable to change power state from D3hot to D0, device inaccessible
  nvme 0000:03:00.0: Unable to change power state from D3hot to D0, device inaccessible

and the machine is only partially usable after resume.  It can't run dmesg
and can't do a clean reboot.  This happens on every suspend/resume cycle.

Revert 5e85eba6f50d until we can figure out the root cause.

Fixes: 5e85eba6f50d ("PCI/ASPM: Refactor L1 PM Substates Control Register programming")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216877
Reported-by: Thomas Witt <kernel@witt.link>
Tested-by: Thomas Witt <kernel@witt.link>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v6.1+
Cc: Vidya Sagar <vidyas@nvidia.com>
20 months agoRevert "PCI/ASPM: Save L1 PM Substates Capability for suspend/resume"
Bjorn Helgaas [Fri, 3 Feb 2023 19:57:29 +0000 (13:57 -0600)]
Revert "PCI/ASPM: Save L1 PM Substates Capability for suspend/resume"

This reverts commit 4ff116d0d5fd8a025604b0802d93a2d5f4e465d1.

Tasev Nikola and Mark Enriquez reported that resume from suspend was broken
in v6.1-rc1.  Tasev bisected to a47126ec29f5 ("PCI/PTM: Cache PTM
Capability offset"), but we can't figure out how that could be related.

Mark saw the same symptoms and bisected to 4ff116d0d5fd ("PCI/ASPM: Save L1
PM Substates Capability for suspend/resume"), which does have a connection:
it restores L1 Substates configuration while ASPM L1 may be enabled:

  pci_restore_state
    pci_restore_aspm_l1ss_state
      aspm_program_l1ss
        pci_write_config_dword(PCI_L1SS_CTL1, ctl1)         # L1SS restore
    pci_restore_pcie_state
      pcie_capability_write_word(PCI_EXP_LNKCTL, cap[i++])  # L1 restore

which is a problem because PCIe r6.0, sec 5.5.4, requires that:

  If setting either or both of the enable bits for ASPM L1 PM
  Substates, both ports must be configured as described in this
  section while ASPM L1 is disabled.

Separately, Thomas Witt reported that 5e85eba6f50d ("PCI/ASPM: Refactor L1
PM Substates Control Register programming") broke suspend/resume, and it
depends on 4ff116d0d5fd.

Revert 4ff116d0d5fd ("PCI/ASPM: Save L1 PM Substates Capability for
suspend/resume") to fix the resume issue and enable revert of 5e85eba6f50d
to fix the issue Thomas reported.

Note that reverting 4ff116d0d5fd means L1 Substates config may be lost on
suspend/resume.  As far as we know the system will use more power but will
still *work* correctly.

Fixes: 4ff116d0d5fd ("PCI/ASPM: Save L1 PM Substates Capability for suspend/resume")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216782
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216877
Reported-by: Tasev Nikola <tasev.stefanoska@skynet.be>
Reported-by: Mark Enriquez <enriquezmark36@gmail.com>
Reported-by: Thomas Witt <kernel@witt.link>
Tested-by: Mark Enriquez <enriquezmark36@gmail.com>
Tested-by: Thomas Witt <kernel@witt.link>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v6.1+
Cc: Vidya Sagar <vidyas@nvidia.com>
20 months agoMerge tag 'soc-fixes-6.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Fri, 10 Feb 2023 17:48:42 +0000 (09:48 -0800)]
Merge tag 'soc-fixes-6.2-4' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "All the changes this time are minor devicetree corrections, the
  majority being for 64-bit Rockchip SoC support. These are a couple of
  corrections for properties that are in violation of the binding, some
  that put the machine into safer operating points for the eMMC and
  thermal settings, and missing properties that prevented rk356x PCIe
  and ethernet from working correctly.

  The changes for amlogic and mediatek address incorrect properties that
  were preventing the display support on MT8195 and the MMC support on
  various Meson SoCs from working correctly.

  The stihxxx-b2120 change fixes the GPIO polarity for the DVB tuner to
  allow this to be used correctly after a futre driver change, though it
  has no effect on older kernels"

* tag 'soc-fixes-6.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  arm64: dts: meson-gx: Make mmc host controller interrupts level-sensitive
  arm64: dts: meson-g12-common: Make mmc host controller interrupts level-sensitive
  arm64: dts: meson-axg: Make mmc host controller interrupts level-sensitive
  ARM: dts: stihxxx-b2120: fix polarity of reset line of tsin0 port
  arm64: dts: mediatek: mt8195: Fix vdosys* compatible strings
  arm64: dts: rockchip: align rk3399 DMC OPP table with bindings
  arm64: dts: rockchip: set sdmmc0 speed to sd-uhs-sdr50 on rock-3a
  arm64: dts: rockchip: fix probe of analog sound card on rock-3a
  arm64: dts: rockchip: add missing #interrupt-cells to rk356x pcie2x1
  arm64: dts: rockchip: fix input enable pinconf on rk3399
  ARM: dts: rockchip: add power-domains property to dp node on rk3288
  arm64: dts: rockchip: add io domain setting to rk3566-box-demo
  arm64: dts: rockchip: remove unsupported property from sdmmc2 for rock-3a
  arm64: dts: rockchip: drop unused LED mode property from rk3328-roc-cc
  arm64: dts: rockchip: reduce thermal limits on rk3399-pinephone-pro
  arm64: dts: rockchip: use correct reset names for rk3399 crypto nodes

20 months agoMerge tag 'riscv-for-linus-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 10 Feb 2023 17:27:52 +0000 (09:27 -0800)]
Merge tag 'riscv-for-linus-6.2-rc8' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:
 "This is a little bigger that I'd hope for this late in the cycle, but
  they're all pretty concrete fixes and the only one that's bigger than
  a few lines is pmdp_collapse_flush() (which is almost all
  boilerplate/comment). It's also all bug fixes for issues that have
  been around for a while.

  So I think it's not all that scary, just bad timing.

   - avoid partial TLB fences for huge pages, which are disallowed by
     the ISA

   - avoid missing a frame when dumping stacks

   - avoid misaligned accesses (and possibly overflows) in kprobes

   - fix a race condition in tracking page dirtiness"

* tag 'riscv-for-linus-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fixup race condition on PG_dcache_clean in flush_icache_pte
  riscv: kprobe: Fixup misaligned load text
  riscv: stacktrace: Fix missing the first frame
  riscv: mm: Implement pmdp_collapse_flush for THP

20 months agoMerge tag 'ceph-for-6.2-rc8' of https://github.com/ceph/ceph-client
Linus Torvalds [Fri, 10 Feb 2023 17:04:00 +0000 (09:04 -0800)]
Merge tag 'ceph-for-6.2-rc8' of https://github.com/ceph/ceph-client

Pull ceph fix from Ilya Dryomov:
 "A fix for a pretty embarrassing omission in the session flush handler
  from Xiubo, marked for stable"

* tag 'ceph-for-6.2-rc8' of https://github.com/ceph/ceph-client:
  ceph: flush cap releases when the session is flushed

20 months agoMerge tag 'block-6.2-2023-02-10' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 10 Feb 2023 16:55:09 +0000 (08:55 -0800)]
Merge tag 'block-6.2-2023-02-10' of git://git.kernel.dk/linux

Pull block fix from Jens Axboe:
 "A single fix for a smatch regression introduced in this merge window"

* tag 'block-6.2-2023-02-10' of git://git.kernel.dk/linux:
  nvme-auth: mark nvme_auth_wq static

20 months agoMerge tag 'sound-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 10 Feb 2023 16:37:48 +0000 (08:37 -0800)]
Merge tag 'sound-6.2-rc8' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Hopefully the last one for 6.2, a collection of the fixes that have
  been gathered since the last pull.

  All changes are small and trivial device-specific fixes"

* tag 'sound-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Add Positivo N14KP6-TG
  ASoC: topology: Return -ENOMEM on memory allocation failure
  ALSA: emux: Avoid potential array out-of-bound in snd_emux_xg_control()
  ASoC: fsl_sai: fix getting version from VERID
  ALSA: hda/realtek: fix mute/micmute LEDs don't work for a HP platform.
  ALSA: hda/realtek: Add quirk for ASUS UM3402 using CS35L41
  ASoC: codecs: es8326: Fix DTS properties reading
  ASoC: tas5805m: add missing page switch.
  ASoC: tas5805m: rework to avoid scheduling while atomic.
  ALSA: hda/realtek: Enable mute/micmute LEDs on HP Elitebook, 645 G9
  ASoC: SOF: amd: Fix for handling spurious interrupts from DSP
  ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book2 Pro 360
  ALSA: pci: lx6464es: fix a debug loop
  ASoC: rt715-sdca: fix clock stop prepare timeout issue

20 months agoMerge tag 'amlogic-fixes-v6.2-rc-take2' of https://git.kernel.org/pub/scm/linux/kerne...
Arnd Bergmann [Fri, 10 Feb 2023 10:31:24 +0000 (11:31 +0100)]
Merge tag 'amlogic-fixes-v6.2-rc-take2' of https://git./linux/kernel/git/amlogic/linux into arm/fixes

Amlogic fixes for v6.2-rc, take2:
- Change MMC controllers interrupts flag to level on all families, fixes irq loss & performance issues when cpu loaded

* tag 'amlogic-fixes-v6.2-rc-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
  arm64: dts: meson-gx: Make mmc host controller interrupts level-sensitive
  arm64: dts: meson-g12-common: Make mmc host controller interrupts level-sensitive
  arm64: dts: meson-axg: Make mmc host controller interrupts level-sensitive

Link: https://lore.kernel.org/r/761c2ebc-7c93-8504-35ae-3e84ad216bcf@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
21 months agoarm64: dts: meson-gx: Make mmc host controller interrupts level-sensitive
Heiner Kallweit [Thu, 9 Feb 2023 20:11:47 +0000 (21:11 +0100)]
arm64: dts: meson-gx: Make mmc host controller interrupts level-sensitive

The usage of edge-triggered interrupts lead to lost interrupts under load,
see [0]. This was confirmed to be fixed by using level-triggered
interrupts.
The report was about SDIO. However, as the host controller is the same
for SD and MMC, apply the change to all mmc controller instances.

[0] https://www.spinics.net/lists/linux-mmc/msg73991.html

Fixes: ef8d2ffedf18 ("ARM64: dts: meson-gxbb: add MMC support")
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/76e042e0-a610-5ed5-209f-c4d7f879df44@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
21 months agoarm64: dts: meson-g12-common: Make mmc host controller interrupts level-sensitive
Heiner Kallweit [Thu, 9 Feb 2023 20:11:10 +0000 (21:11 +0100)]
arm64: dts: meson-g12-common: Make mmc host controller interrupts level-sensitive

The usage of edge-triggered interrupts lead to lost interrupts under load,
see [0]. This was confirmed to be fixed by using level-triggered
interrupts.
The report was about SDIO. However, as the host controller is the same
for SD and MMC, apply the change to all mmc controller instances.

[0] https://www.spinics.net/lists/linux-mmc/msg73991.html

Fixes: 4759fd87b928 ("arm64: dts: meson: g12a: add mmc nodes")
Tested-by: FUKAUMI Naoki <naoki@radxa.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/27d89baa-b8fa-baca-541b-ef17a97cde3c@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
21 months agoarm64: dts: meson-axg: Make mmc host controller interrupts level-sensitive
Heiner Kallweit [Thu, 9 Feb 2023 20:10:31 +0000 (21:10 +0100)]
arm64: dts: meson-axg: Make mmc host controller interrupts level-sensitive

The usage of edge-triggered interrupts lead to lost interrupts under load,
see [0]. This was confirmed to be fixed by using level-triggered
interrupts.
The report was about SDIO. However, as the host controller is the same
for SD and MMC, apply the change to all mmc controller instances.

[0] https://www.spinics.net/lists/linux-mmc/msg73991.html

Fixes: 221cf34bac54 ("ARM64: dts: meson-axg: enable the eMMC controller")
Reported-by: Peter Suti <peter.suti@streamunlimited.com>
Tested-by: Vyacheslav Bocharov <adeep@lexina.in>
Tested-by: Peter Suti <peter.suti@streamunlimited.com>
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/c00655d3-02f8-6f5f-4239-ca2412420cad@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
21 months agoMerge tag 'drm-fixes-2023-02-10' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 10 Feb 2023 01:52:00 +0000 (17:52 -0800)]
Merge tag 'drm-fixes-2023-02-10' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Weekly fixes.

  The amdgpu had a few small fixes to display flicker on certain
  configurations, however it was found the the flicker was lessened but
  there were other unintended consequences, so for now they've been
  reverted and replaced with an option for users to test with so future
  fixes can be developed.

  Otherwise apart from the usual bunch of i915 and amdgpu, there's a
  client, virtio-gpu and an nvidiafb fix that reorders its loading to
  avoid failure.

  client:
   - refcount fix

  amdgpu:
   - a bunch of attempted flicker fixes that regressed turned into a
     user workaround option for now
   - Properly fix S/G display with AGP aperture enabled
   - Fix cursor offset with 180 rotation
   - SMU13 fixes
   - Use TGID for GPUVM traces
   - Fix oops on in fence error path
   - Don't run IB tests on hw rings when sw rings are in use
   - memory leak fix

  i915:
   - Display watermark fix
   - fbdev fix for PSR, FBC, DRRS
   - Move fd_install after last use of fence
   - Initialize the obj flags for shmem objects
   - Fix VBT DSI DVO port handling

  virtio-gpu:
   - fence fix

  nvidiafb:
   - regression fix for driver load when no hw supported"

* tag 'drm-fixes-2023-02-10' of git://anongit.freedesktop.org/drm/drm: (27 commits)
  Revert "drm/amd/display: disable S/G display on DCN 3.1.5"
  Revert "drm/amd/display: disable S/G display on DCN 2.1.0"
  Revert "drm/amd/display: disable S/G display on DCN 3.1.2/3"
  drm/amdgpu: add S/G display parameter
  drm/amdgpu/smu: skip pptable init under sriov
  amd/amdgpu: remove test ib on hw ring
  drm/amdgpu/fence: Fix oops due to non-matching drm_sched init/fini
  drm/amdgpu: Use the TGID for trace_amdgpu_vm_update_ptes
  drm/amdgpu: Add unique_id support for GC 11.0.1/2
  drm/amd/pm: bump SMU 13.0.7 driver_if header version
  drm/amd/pm: bump SMU 13.0.0 driver_if header version
  drm/amd/pm: add SMU 13.0.7 missing GetPptLimit message mapping
  drm/amd/display: fix cursor offset on rotation 180
  drm/amd/amdgpu: enable athub cg 11.0.3
  Revert "drm/amd/display: disable S/G display on DCN 3.1.4"
  drm/amd/display: properly handling AGP aperture in vm setup
  drm/amd/display: disable S/G display on DCN 3.1.2/3
  drm/amd/display: disable S/G display on DCN 2.1.0
  drm/i915: Fix VBT DSI DVO port handling
  drm/client: fix circular reference counting issue
  ...

21 months agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Fri, 10 Feb 2023 01:34:14 +0000 (17:34 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "The usual collection of small driver bug fixes:

   - Fix error unwind bugs in hfi1, irdma rtrs

   - Old bug with IPoIB children interfaces possibly using the wrong
     number of queues

   - Really old bug in usnic calling iommu_map in an atomic context

   - Recent regression from the DMABUF locking rework

   - Missing user data validation in MANA"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/rtrs: Don't call kobject_del for srv_path->kobj
  RDMA/mana_ib: Prevent array underflow in mana_ib_create_qp_raw()
  IB/hfi1: Assign npages earlier
  RDMA/umem: Use dma-buf locked API to solve deadlock
  RDMA/usnic: use iommu_map_atomic() under spin_lock()
  RDMA/irdma: Fix potential NULL-ptr-dereference
  IB/IPoIB: Fix legacy IPoIB due to wrong number of queues
  IB/hfi1: Restore allocated resources on failed copyout

21 months agoMerge tag 'amd-drm-fixes-6.2-2023-02-09' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 9 Feb 2023 23:49:12 +0000 (09:49 +1000)]
Merge tag 'amd-drm-fixes-6.2-2023-02-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.2-2023-02-09:

amdgpu:
- Add a parameter to disable S/G display
- Re-enable S/G display on all DCNs

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230209174504.7577-1-alexander.deucher@amd.com
21 months agoMerge tag 'drm-intel-fixes-2023-02-09' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Thu, 9 Feb 2023 23:47:20 +0000 (09:47 +1000)]
Merge tag 'drm-intel-fixes-2023-02-09' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Display watermark fix (Ville)
- fbdev fix for PSR, FBC, DRRS (Jouni)
- Move fd_install after last use of fence (Rob)
- Initialize the obj flags for shmem objects (Aravind)
- Fix VBT DSI DVO port handling (Ville)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y+UZ0rh2YlhTrE4t@intel.com
21 months agoMerge tag 'drm-misc-fixes-2023-02-09' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Thu, 9 Feb 2023 23:15:52 +0000 (09:15 +1000)]
Merge tag 'drm-misc-fixes-2023-02-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A fix for a circular refcounting in drm/client, one for a memory leak in
amdgpu and a virtio fence fix when interrupted

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230209083600.7hi6roht6xxgldgz@houat
21 months agocpuidle: sysfs: make kobj_type structures constant
Thomas Weißschuh [Tue, 7 Feb 2023 19:55:19 +0000 (19:55 +0000)]
cpuidle: sysfs: make kobj_type structures constant

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definitions to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
21 months agocpuidle: add ARCH_SUSPEND_POSSIBLE dependencies
Arnd Bergmann [Mon, 6 Feb 2023 19:33:06 +0000 (20:33 +0100)]
cpuidle: add ARCH_SUSPEND_POSSIBLE dependencies

Some ARMv4 processors don't support suspend, which leads
to a build failure with the tegra and qualcomm cpuidle driver:

WARNING: unmet direct dependencies detected for ARM_CPU_SUSPEND
  Depends on [n]: ARCH_SUSPEND_POSSIBLE [=n]
  Selected by [y]:
  - ARM_TEGRA_CPUIDLE [=y] && CPU_IDLE [=y] && (ARM [=y] || ARM64) && (ARCH_TEGRA [=n] || COMPILE_TEST [=y]) && !ARM64 && MMU [=y]

arch/arm/kernel/sleep.o: in function `__cpu_suspend':
(.text+0x68): undefined reference to `cpu_sa110_suspend_size'
(.text+0x68): undefined reference to `cpu_fa526_suspend_size'

Add an explicit dependency to make randconfig builds avoid
this combination.

Fixes: faae6c9f2e68 ("cpuidle: tegra: Enable compile testing")
Fixes: a871be6b8eee ("cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver")
Link: https://lore.kernel.org/all/20211013160125.772873-1-arnd@kernel.org/
Cc: All applicable <stable@vger.kernel.org>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
21 months agoriscv: Fixup race condition on PG_dcache_clean in flush_icache_pte
Guo Ren [Fri, 27 Jan 2023 03:53:06 +0000 (22:53 -0500)]
riscv: Fixup race condition on PG_dcache_clean in flush_icache_pte

In commit 588a513d3425 ("arm64: Fix race condition on PG_dcache_clean
in __sync_icache_dcache()"), we found RISC-V has the same issue as the
previous arm64. The previous implementation didn't guarantee the correct
sequence of operations, which means flush_icache_all() hasn't been
called when the PG_dcache_clean was set. That would cause a risk of page
synchronization.

Fixes: 08f051eda33b ("RISC-V: Flush I$ when making a dirty page executable")
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230127035306.1819561-1-guoren@kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
21 months agoriscv: kprobe: Fixup misaligned load text
Guo Ren [Sat, 4 Feb 2023 06:35:31 +0000 (01:35 -0500)]
riscv: kprobe: Fixup misaligned load text

The current kprobe would cause a misaligned load for the probe point.
This patch fixup it with two half-word loads instead.

Fixes: c22b0bcb1dd0 ("riscv: Add kprobes supported")
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/linux-riscv/878rhig9zj.fsf@all.your.base.are.belong.to.us/
Reported-by: Bjorn Topel <bjorn.topel@gmail.com>
Reviewed-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/r/20230204063531.740220-1-guoren@kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
21 months agocpufreq: Make kobj_type structure constant
Thomas Weißschuh [Tue, 7 Feb 2023 19:58:18 +0000 (19:58 +0000)]
cpufreq: Make kobj_type structure constant

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definition to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
21 months agocpufreq: davinci: Fix clk use after free
Uwe Kleine-König [Wed, 8 Feb 2023 09:26:54 +0000 (10:26 +0100)]
cpufreq: davinci: Fix clk use after free

The remove function first frees the clks and only then calls
cpufreq_unregister_driver(). If one of the cpufreq callbacks is called
just before cpufreq_unregister_driver() is run, the freed clks might be
used.

Fixes: 6601b8030de3 ("davinci: add generic CPUFreq driver for DaVinci")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
21 months agocpufreq: amd-pstate: avoid uninitialized variable use
Arnd Bergmann [Tue, 7 Feb 2023 16:12:51 +0000 (17:12 +0100)]
cpufreq: amd-pstate: avoid uninitialized variable use

The new epp support causes warnings about three separate
but related bugs:

1) failing before allocation should just return an error:

drivers/cpufreq/amd-pstate.c:951:6: error: variable 'ret' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
        if (!dev)
            ^~~~
drivers/cpufreq/amd-pstate.c:1018:9: note: uninitialized use occurs here
        return ret;
               ^~~

2) wrong variable to store return code:

drivers/cpufreq/amd-pstate.c:963:6: error: variable 'ret' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
        if (rc)
            ^~
drivers/cpufreq/amd-pstate.c:1019:9: note: uninitialized use occurs here
        return ret;
               ^~~
drivers/cpufreq/amd-pstate.c:963:2: note: remove the 'if' if its condition is always false
        if (rc)
        ^~~~~~~

3) calling amd_pstate_set_epp() in cleanup path after determining
that it should not be called:

drivers/cpufreq/amd-pstate.c:1055:6: error: variable 'epp' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
        if (cpudata->epp_policy == cpudata->policy)
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/cpufreq/amd-pstate.c:1080:30: note: uninitialized use occurs here
        amd_pstate_set_epp(cpudata, epp);
                                    ^~~

All three are trivial to fix, but most likely there are additional bugs
in this function when the error handling was not really tested.

Fixes: ffa5096a7c33 ("cpufreq: amd-pstate: implement Pstate EPP support for the AMD processors")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Reviewed-by: Yuan Perry <Perry.Yuan@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
21 months agocpufreq: Make cpufreq_unregister_driver() return void
Uwe Kleine-König [Tue, 7 Feb 2023 19:59:09 +0000 (20:59 +0100)]
cpufreq: Make cpufreq_unregister_driver() return void

All but a few drivers ignore the return value of
cpufreq_unregister_driver(). Those few that don't only call it after
cpufreq_register_driver() succeeded, in which case the call doesn't
fail.

Make the function return no value and add a WARN_ON for the case that
the function is called in an invalid situation (i.e. without a previous
successful call to cpufreq_register_driver()).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com> # brcmstb-avs-cpufreq.c
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
21 months agoMerge tag 'pm-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Thu, 9 Feb 2023 18:54:57 +0000 (10:54 -0800)]
Merge tag 'pm-6.2-rc8' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix the incorrect value returned by cpufreq driver's ->get() callback
  for Qualcomm platforms (Douglas Anderson)"

* tag 'pm-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: qcom-hw: Fix cpufreq_driver->get() for non-LMH systems

21 months agoMerge back cpufreq material for 6.3-rc1.
Rafael J. Wysocki [Thu, 9 Feb 2023 18:49:37 +0000 (19:49 +0100)]
Merge back cpufreq material for 6.3-rc1.

21 months agoMerge tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 9 Feb 2023 17:17:38 +0000 (09:17 -0800)]
Merge tag 'net-6.2-rc8' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from can and ipsec subtrees.

  Current release - regressions:

   - sched: fix off by one in htb_activate_prios()

   - eth: mana: fix accessing freed irq affinity_hint

   - eth: ice: fix out-of-bounds KASAN warning in virtchnl

  Current release - new code bugs:

   - eth: mtk_eth_soc: enable special tag when any MAC uses DSA

  Previous releases - always broken:

   - core: fix sk->sk_txrehash default

   - neigh: make sure used and confirmed times are valid

   - mptcp: be careful on subflow status propagation on errors

   - xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

   - phylink: move phy_device_free() to correctly release phy device

   - eth: mlx5:
      - fix crash unsetting rx-vlan-filter in switchdev mode
      - fix hang on firmware reset
      - serialize module cleanup with reload and remove"

* tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
  selftests: forwarding: lib: quote the sysctl values
  net: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping is used
  rds: rds_rm_zerocopy_callback() use list_first_entry()
  net: txgbe: Update support email address
  selftests: Fix failing VXLAN VNI filtering test
  selftests: mptcp: stop tests earlier
  selftests: mptcp: allow more slack for slow test-case
  mptcp: be careful on subflow status propagation on errors
  mptcp: fix locking for in-kernel listener creation
  mptcp: fix locking for setsockopt corner-case
  mptcp: do not wait for bare sockets' timeout
  net: ethernet: mtk_eth_soc: fix DSA TX tag hwaccel for switch port 0
  nfp: ethtool: fix the bug of setting unsupported port speed
  txhash: fix sk->sk_txrehash default
  net: ethernet: mtk_eth_soc: fix wrong parameters order in __xdp_rxq_info_reg()
  net: ethernet: mtk_eth_soc: enable special tag when any MAC uses DSA
  net: sched: sch: Fix off by one in htb_activate_prios()
  igc: Add ndo_tx_timeout support
  net: mana: Fix accessing freed irq affinity_hint
  hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC
  ...

21 months agoMerge tag 'for-linus-2023020901' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 9 Feb 2023 17:09:13 +0000 (09:09 -0800)]
Merge tag 'for-linus-2023020901' of git://git./linux/kernel/git/hid/hid

Pull HID fixes from Benjamin Tissoires:

 - fix potential infinite loop with a badly crafted HID device (Xin
   Zhao)

 - fix regression from 6.1 in USB logitech devices potentially making
   their mouse wheel not working (Bastien Nocera)

 - clean up in AMD sensors, which fixes a long time resume bug (Mario
   Limonciello)

 - few device small fixes and quirks

* tag 'for-linus-2023020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: Ignore battery for ELAN touchscreen 29DF on HP
  HID: amd_sfh: if no sensors are enabled, clean up
  HID: logitech: Disable hi-res scrolling on USB
  HID: core: Fix deadloop in hid_apply_multiplier.
  HID: Ignore battery for Elan touchscreen on Asus TP420IA
  HID: elecom: add support for TrackBall 056E:011C

21 months agoMerge tag '6.2-rc8-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Thu, 9 Feb 2023 17:00:26 +0000 (09:00 -0800)]
Merge tag '6.2-rc8-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull cifx fix from Steve French:
 "Small fix for use after free"

* tag '6.2-rc8-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Fix use-after-free in rdata->read_into_pages()

21 months agobtrfs: free device in btrfs_close_devices for a single device filesystem
Anand Jain [Fri, 20 Jan 2023 13:47:16 +0000 (21:47 +0800)]
btrfs: free device in btrfs_close_devices for a single device filesystem

We have this check to make sure we don't accidentally add older devices
that may have disappeared and re-appeared with an older generation from
being added to an fs_devices (such as a replace source device). This
makes sense, we don't want stale disks in our file system. However for
single disks this doesn't really make sense.

I've seen this in testing, but I was provided a reproducer from a
project that builds btrfs images on loopback devices. The loopback
device gets cached with the new generation, and then if it is re-used to
generate a new file system we'll fail to mount it because the new fs is
"older" than what we have in cache.

Fix this by freeing the cache when closing the device for a single device
filesystem. This will ensure that the mount command passed device path is
scanned successfully during the next mount.

CC: stable@vger.kernel.org # 5.10+
Reported-by: Daan De Meyer <daandemeyer@fb.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
21 months agobtrfs: lock the inode in shared mode before starting fiemap
Filipe Manana [Mon, 23 Jan 2023 16:54:46 +0000 (16:54 +0000)]
btrfs: lock the inode in shared mode before starting fiemap

Currently fiemap does not take the inode's lock (VFS lock), it only locks
a file range in the inode's io tree. This however can lead to a deadlock
if we have a concurrent fsync on the file and fiemap code triggers a fault
when accessing the user space buffer with fiemap_fill_next_extent(). The
deadlock happens on the inode's i_mmap_lock semaphore, which is taken both
by fsync and btrfs_page_mkwrite(). This deadlock was recently reported by
syzbot and triggers a trace like the following:

   task:syz-executor361 state:D stack:20264 pid:5668  ppid:5119   flags:0x00004004
   Call Trace:
    <TASK>
    context_switch kernel/sched/core.c:5293 [inline]
    __schedule+0x995/0xe20 kernel/sched/core.c:6606
    schedule+0xcb/0x190 kernel/sched/core.c:6682
    wait_on_state fs/btrfs/extent-io-tree.c:707 [inline]
    wait_extent_bit+0x577/0x6f0 fs/btrfs/extent-io-tree.c:751
    lock_extent+0x1c2/0x280 fs/btrfs/extent-io-tree.c:1742
    find_lock_delalloc_range+0x4e6/0x9c0 fs/btrfs/extent_io.c:488
    writepage_delalloc+0x1ef/0x540 fs/btrfs/extent_io.c:1863
    __extent_writepage+0x736/0x14e0 fs/btrfs/extent_io.c:2174
    extent_write_cache_pages+0x983/0x1220 fs/btrfs/extent_io.c:3091
    extent_writepages+0x219/0x540 fs/btrfs/extent_io.c:3211
    do_writepages+0x3c3/0x680 mm/page-writeback.c:2581
    filemap_fdatawrite_wbc+0x11e/0x170 mm/filemap.c:388
    __filemap_fdatawrite_range mm/filemap.c:421 [inline]
    filemap_fdatawrite_range+0x175/0x200 mm/filemap.c:439
    btrfs_fdatawrite_range fs/btrfs/file.c:3850 [inline]
    start_ordered_ops fs/btrfs/file.c:1737 [inline]
    btrfs_sync_file+0x4ff/0x1190 fs/btrfs/file.c:1839
    generic_write_sync include/linux/fs.h:2885 [inline]
    btrfs_do_write_iter+0xcd3/0x1280 fs/btrfs/file.c:1684
    call_write_iter include/linux/fs.h:2189 [inline]
    new_sync_write fs/read_write.c:491 [inline]
    vfs_write+0x7dc/0xc50 fs/read_write.c:584
    ksys_write+0x177/0x2a0 fs/read_write.c:637
    do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
    entry_SYSCALL_64_after_hwframe+0x63/0xcd
   RIP: 0033:0x7f7d4054e9b9
   RSP: 002b:00007f7d404fa2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
   RAX: ffffffffffffffda RBX: 00007f7d405d87a0 RCX: 00007f7d4054e9b9
   RDX: 0000000000000090 RSI: 0000000020000000 RDI: 0000000000000006
   RBP: 00007f7d405a51d0 R08: 0000000000000000 R09: 0000000000000000
   R10: 0000000000000000 R11: 0000000000000246 R12: 61635f65646f6e69
   R13: 65646f7475616f6e R14: 7261637369646f6e R15: 00007f7d405d87a8
    </TASK>
   INFO: task syz-executor361:5697 blocked for more than 145 seconds.
         Not tainted 6.2.0-rc3-syzkaller-00376-g7c6984405241 #0
   "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
   task:syz-executor361 state:D stack:21216 pid:5697  ppid:5119   flags:0x00004004
   Call Trace:
    <TASK>
    context_switch kernel/sched/core.c:5293 [inline]
    __schedule+0x995/0xe20 kernel/sched/core.c:6606
    schedule+0xcb/0x190 kernel/sched/core.c:6682
    rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
    __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
    btrfs_page_mkwrite+0x417/0xc80 fs/btrfs/inode.c:8526
    do_page_mkwrite+0x19e/0x5e0 mm/memory.c:2947
    wp_page_shared+0x15e/0x380 mm/memory.c:3295
    handle_pte_fault mm/memory.c:4949 [inline]
    __handle_mm_fault mm/memory.c:5073 [inline]
    handle_mm_fault+0x1b79/0x26b0 mm/memory.c:5219
    do_user_addr_fault+0x69b/0xcb0 arch/x86/mm/fault.c:1428
    handle_page_fault arch/x86/mm/fault.c:1519 [inline]
    exc_page_fault+0x7a/0x110 arch/x86/mm/fault.c:1575
    asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
   RIP: 0010:copy_user_short_string+0xd/0x40 arch/x86/lib/copy_user_64.S:233
   Code: 74 0a 89 (...)
   RSP: 0018:ffffc9000570f330 EFLAGS: 00050202
   RAX: ffffffff843e6601 RBX: 00007fffffffefc8 RCX: 0000000000000007
   RDX: 0000000000000000 RSI: ffffc9000570f3e0 RDI: 0000000020000120
   RBP: ffffc9000570f490 R08: 0000000000000000 R09: fffff52000ae1e83
   R10: fffff52000ae1e83 R11: 1ffff92000ae1e7c R12: 0000000000000038
   R13: ffffc9000570f3e0 R14: 0000000020000120 R15: ffffc9000570f3e0
    copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
    raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline]
    _copy_to_user+0xe9/0x130 lib/usercopy.c:34
    copy_to_user include/linux/uaccess.h:169 [inline]
    fiemap_fill_next_extent+0x22e/0x410 fs/ioctl.c:144
    emit_fiemap_extent+0x22d/0x3c0 fs/btrfs/extent_io.c:3458
    fiemap_process_hole+0xa00/0xad0 fs/btrfs/extent_io.c:3716
    extent_fiemap+0xe27/0x2100 fs/btrfs/extent_io.c:3922
    btrfs_fiemap+0x172/0x1e0 fs/btrfs/inode.c:8209
    ioctl_fiemap fs/ioctl.c:219 [inline]
    do_vfs_ioctl+0x185b/0x2980 fs/ioctl.c:810
    __do_sys_ioctl fs/ioctl.c:868 [inline]
    __se_sys_ioctl+0x83/0x170 fs/ioctl.c:856
    do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
    entry_SYSCALL_64_after_hwframe+0x63/0xcd
   RIP: 0033:0x7f7d4054e9b9
   RSP: 002b:00007f7d390d92f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
   RAX: ffffffffffffffda RBX: 00007f7d405d87b0 RCX: 00007f7d4054e9b9
   RDX: 0000000020000100 RSI: 00000000c020660b RDI: 0000000000000005
   RBP: 00007f7d405a51d0 R08: 00007f7d390d9700 R09: 0000000000000000
   R10: 00007f7d390d9700 R11: 0000000000000246 R12: 61635f65646f6e69
   R13: 65646f7475616f6e R14: 7261637369646f6e R15: 00007f7d405d87b8
    </TASK>

What happens is the following:

1) Task A is doing an fsync, enters btrfs_sync_file() and flushes delalloc
   before locking the inode and the i_mmap_lock semaphore, that is, before
   calling btrfs_inode_lock();

2) After task A flushes delalloc and before it calls btrfs_inode_lock(),
   another task dirties a page;

3) Task B starts a fiemap without FIEMAP_FLAG_SYNC, so the page dirtied
   at step 2 remains dirty and unflushed. Then when it enters
   extent_fiemap() and it locks a file range that includes the range of
   the page dirtied in step 2;

4) Task A calls btrfs_inode_lock() and locks the inode (VFS lock) and the
   inode's i_mmap_lock semaphore in write mode. Then it tries to flush
   delalloc by calling start_ordered_ops(), which will block, at
   find_lock_delalloc_range(), when trying to lock the range of the page
   dirtied at step 2, since this range was locked by the fiemap task (at
   step 3);

5) Task B generates a page fault when accessing the user space fiemap
   buffer with a call to fiemap_fill_next_extent().

   The fault handler needs to call btrfs_page_mkwrite() for some other
   page of our inode, and there we deadlock when trying to lock the
   inode's i_mmap_lock semaphore in read mode, since the fsync task locked
   it in write mode (step 4) and the fsync task can not progress because
   it's waiting to lock a file range that is currently locked by us (the
   fiemap task, step 3).

Fix this by taking the inode's lock (VFS lock) in shared mode when
entering fiemap. This effectively serializes fiemap with fsync (except the
most expensive part of fsync, the log sync), preventing this deadlock.

Reported-by: syzbot+cc35f55c41e34c30dcb5@syzkaller.appspotmail.com
Link: https://lore.kernel.org/linux-btrfs/00000000000032dc7305f2a66f46@google.com/
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
21 months agoRevert "drm/amd/display: disable S/G display on DCN 3.1.5"
Alex Deucher [Thu, 9 Feb 2023 14:09:45 +0000 (09:09 -0500)]
Revert "drm/amd/display: disable S/G display on DCN 3.1.5"

This reverts commit 3cc67fe1b3aa1ac4720e002f2aa2d08c9199a584.

Some users have reported flickerng with S/G display.  We've
tried extensively to reproduce and debug the issue on a wide
variety of platform configurations (DRAM bandwidth, etc.) and
a variety of monitors, but so far have not been able to.  We
disabled S/G display on a number of platforms to address this
but that leads to failure to pin framebuffers errors and
blank displays when there is memory pressure or no displays
at all on systems with limited carveout (e.g., Chromebooks).
We have a parameter to disable this as a debugging option as a
way for users to disable this, depending on their use case,
and for us to help debug this further.  Having this enabled
seems like the lesser of to evils.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
21 months agoRevert "drm/amd/display: disable S/G display on DCN 2.1.0"
Alex Deucher [Thu, 9 Feb 2023 14:09:19 +0000 (09:09 -0500)]
Revert "drm/amd/display: disable S/G display on DCN 2.1.0"

This reverts commit 2404f9b0ea0153c3fddb0c4d7a43869dc8608f6f.

Some users have reported flickerng with S/G display.  We've
tried extensively to reproduce and debug the issue on a wide
variety of platform configurations (DRAM bandwidth, etc.) and
a variety of monitors, but so far have not been able to.  We
disabled S/G display on a number of platforms to address this
but that leads to failure to pin framebuffers errors and
blank displays when there is memory pressure or no displays
at all on systems with limited carveout (e.g., Chromebooks).
We have a parameter to disable this as a debugging option as a
way for users to disable this, depending on their use case,
and for us to help debug this further.  Having this enabled
seems like the lesser of to evils.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
21 months agoRevert "drm/amd/display: disable S/G display on DCN 3.1.2/3"
Alex Deucher [Thu, 9 Feb 2023 14:07:42 +0000 (09:07 -0500)]
Revert "drm/amd/display: disable S/G display on DCN 3.1.2/3"

This reverts commit f081cd4ca2658752a8c0e2353d50aec80d07c65f.

Some users have reported flickerng with S/G display.  We've
tried extensively to reproduce and debug the issue on a wide
variety of platform configurations (DRAM bandwidth, etc.) and
a variety of monitors, but so far have not been able to.  We
disabled S/G display on a number of platforms to address this
but that leads to failure to pin framebuffers errors and
blank displays when there is memory pressure or no displays
at all on systems with limited carveout (e.g., Chromebooks).
We have a parameter to disable this as a debugging option as a
way for users to disable this, depending on their use case,
and for us to help debug this further.  Having this enabled
seems like the lesser of to evils.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
21 months agodrm/amdgpu: add S/G display parameter
Alex Deucher [Thu, 9 Feb 2023 14:00:02 +0000 (09:00 -0500)]
drm/amdgpu: add S/G display parameter

Some users have reported flickerng with S/G display.  We've
tried extensively to reproduce and debug the issue on a wide
variety of platform configurations (DRAM bandwidth, etc.) and
a variety of monitors, but so far have not been able to.  We
disabled S/G display on a number of platforms to address this
but that leads to failure to pin framebuffers errors and
blank displays when there is memory pressure or no displays
at all on systems with limited carveout (e.g., Chromebooks).
Add a option to disable this as a debugging option as a
way for users to disable this, depending on their use case,
and for us to help debug this further.

v2: fix typo

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
21 months agoMerge tag 'nvme-6.2-2023-02-09' of git://git.infradead.org/nvme into block-6.2
Jens Axboe [Thu, 9 Feb 2023 15:12:06 +0000 (08:12 -0700)]
Merge tag 'nvme-6.2-2023-02-09' of git://git.infradead.org/nvme into block-6.2

Pull NVMe fix from Christoph:

"nvme fixes for Linux 6.2

 - fix a static checker warning for a variable introduces in the last
   pull request (Tom Rix)"

* tag 'nvme-6.2-2023-02-09' of git://git.infradead.org/nvme:
  nvme-auth: mark nvme_auth_wq static

21 months agousb: core: add quirk for Alcor Link AK9563 smartcard reader
Mark Pearson [Wed, 8 Feb 2023 18:12:23 +0000 (13:12 -0500)]
usb: core: add quirk for Alcor Link AK9563 smartcard reader

The Alcor Link AK9563 smartcard reader used on some Lenovo platforms
doesn't work. If LPM is enabled the reader will provide an invalid
usb config descriptor. Added quirk to disable LPM.

Verified fix on Lenovo P16 G1 and T14 G3

Tested-by: Miroslav Zatko <mzatko@mirexoft.com>
Tested-by: Dennis Wassenberg <dennis.wassenberg@secunet.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com>
Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://lore.kernel.org/r/20230208181223.1092654-1-mpearson-lenovo@squebb.ca
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
21 months agousb: typec: altmodes/displayport: Fix probe pin assign check
Prashant Malani [Wed, 8 Feb 2023 20:53:19 +0000 (20:53 +0000)]
usb: typec: altmodes/displayport: Fix probe pin assign check

While checking Pin Assignments of the port and partner during probe, we
don't take into account whether the peripheral is a plug or receptacle.

This manifests itself in a mode entry failure on certain docks and
dongles with captive cables. For instance, the Startech.com Type-C to DP
dongle (Model #CDP2DP) advertises its DP VDO as 0x405. This would fail
the Pin Assignment compatibility check, despite it supporting
Pin Assignment C as a UFP.

Update the check to use the correct DP Pin Assign macros that
take the peripheral's receptacle bit into account.

Fixes: c1e5c2f0cb8a ("usb: typec: altmodes/displayport: correct pin assignment for UFP receptacles")
Cc: stable@vger.kernel.org
Reported-by: Diana Zigterman <dzigterman@chromium.org>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20230208205318.131385-1-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
21 months agoRevert "usb: gadget: u_ether: Do not make UDC parent of the net device"
Paul Cercueil [Thu, 9 Feb 2023 10:56:26 +0000 (10:56 +0000)]
Revert "usb: gadget: u_ether: Do not make UDC parent of the net device"

This reverts commit 321b59870f850a10dbb211ecd2bd87b41497ea6f.

This commit broke USB networking on Ingenic SoCs and maybe elsewhere.
The actual reason is unknown; and while a proper fix would be better,
we're sitting at -rc7 now, so a revert is justified - and we can work on
re-introducing this change for 6.3.

Fixes: 321b59870f85 ("usb: gadget: u_ether: Do not make UDC parent of the net device")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20230209105626.10597-1-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
21 months agoarm64: efi: Force the use of SetVirtualAddressMap() on eMAG and Altra Max machines
Darren Hart [Thu, 9 Feb 2023 00:28:21 +0000 (16:28 -0800)]
arm64: efi: Force the use of SetVirtualAddressMap() on eMAG and Altra Max machines

Commit 550b33cfd445 ("arm64: efi: Force the use of SetVirtualAddressMap()
on Altra machines") identifies the Altra family via the family field in
the type#1 SMBIOS record. eMAG and Altra Max machines are similarly
affected but not detected with the strict strcmp test.

The type1_family smbios string is not an entirely reliable means of
identifying systems with this issue as OEMs can, and do, use their own
strings for these fields. However, until we have a better solution,
capture the bulk of these systems by adding strcmp matching for "eMAG"
and "Altra Max".

Fixes: 550b33cfd445 ("arm64: efi: Force the use of SetVirtualAddressMap() on Altra machines")
Cc: <stable@vger.kernel.org> # 6.1.x
Cc: Alexandru Elisei <alexandru.elisei@gmail.com>
Signed-off-by: Darren Hart <darren@os.amperecomputing.com>
Tested-by: Justin He <justin.he@arm.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
21 months agoselftests: forwarding: lib: quote the sysctl values
Hangbin Liu [Wed, 8 Feb 2023 03:21:10 +0000 (11:21 +0800)]
selftests: forwarding: lib: quote the sysctl values

When set/restore sysctl value, we should quote the value as some keys
may have multi values, e.g. net.ipv4.ping_group_range

Fixes: f5ae57784ba8 ("selftests: forwarding: lib: Add sysctl_set(), sysctl_restore()")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20230208032110.879205-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
21 months agonet: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping is used
Vladimir Oltean [Tue, 7 Feb 2023 18:31:17 +0000 (20:31 +0200)]
net: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping is used

While running this selftest which usually passes:

~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0
TEST: swp0: Unicast IPv4 to primary MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to macvlan MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, promisc            [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti           [ OK ]
TEST: swp0: Multicast IPv4 to joined group                          [ OK ]
TEST: swp0: Multicast IPv4 to unknown group                         [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, promisc                [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, allmulti               [ OK ]
TEST: swp0: Multicast IPv6 to joined group                          [ OK ]
TEST: swp0: Multicast IPv6 to unknown group                         [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, promisc                [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, allmulti               [ OK ]

if I start PTP timestamping then run it again (debug prints added by me),
the unknown IPv6 MC traffic is seen by the CPU port even when it should
have been dropped:

~/selftests/drivers/net/dsa# ptp4l -i swp0 -2 -P -m
ptp4l[225.410]: selected /dev/ptp1 as PTP clock
[  225.445746] mscc_felix 0000:00:00.5: ocelot_l2_ptp_trap_add: port 0 adding L2 PTP trap
[  225.453815] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_add: port 0 adding IPv4 PTP event trap
[  225.462703] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_add: port 0 adding IPv4 PTP general trap
[  225.471768] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_add: port 0 adding IPv6 PTP event trap
[  225.480651] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_add: port 0 adding IPv6 PTP general trap
ptp4l[225.488]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE
ptp4l[225.488]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE
^C
~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0
TEST: swp0: Unicast IPv4 to primary MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to macvlan MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, promisc            [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti           [ OK ]
TEST: swp0: Multicast IPv4 to joined group                          [ OK ]
TEST: swp0: Multicast IPv4 to unknown group                         [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, promisc                [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, allmulti               [ OK ]
TEST: swp0: Multicast IPv6 to joined group                          [ OK ]
TEST: swp0: Multicast IPv6 to unknown group                         [FAIL]
        reception succeeded, but should have failed
TEST: swp0: Multicast IPv6 to unknown group, promisc                [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, allmulti               [ OK ]

The PGID_MCIPV6 is configured correctly to not flood to the CPU,
I checked that.

Furthermore, when I disable back PTP RX timestamping (ptp4l doesn't do
that when it exists), packets are RX filtered again as they should be:

~/selftests/drivers/net/dsa# hwstamp_ctl -i swp0 -r 0
[  218.202854] mscc_felix 0000:00:00.5: ocelot_l2_ptp_trap_del: port 0 removing L2 PTP trap
[  218.212656] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_del: port 0 removing IPv4 PTP event trap
[  218.222975] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_del: port 0 removing IPv4 PTP general trap
[  218.233133] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_del: port 0 removing IPv6 PTP event trap
[  218.242251] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_del: port 0 removing IPv6 PTP general trap
current settings:
tx_type 1
rx_filter 12
new settings:
tx_type 1
rx_filter 0
~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0
TEST: swp0: Unicast IPv4 to primary MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to macvlan MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address                     [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, promisc            [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti           [ OK ]
TEST: swp0: Multicast IPv4 to joined group                          [ OK ]
TEST: swp0: Multicast IPv4 to unknown group                         [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, promisc                [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, allmulti               [ OK ]
TEST: swp0: Multicast IPv6 to joined group                          [ OK ]
TEST: swp0: Multicast IPv6 to unknown group                         [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, promisc                [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, allmulti               [ OK ]

So it's clear that something in the PTP RX trapping logic went wrong.

Looking a bit at the code, I can see that there are 4 typos, which
populate "ipv4" VCAP IS2 key filter fields for IPv6 keys.

VCAP IS2 keys of type OCELOT_VCAP_KEY_IPV4 and OCELOT_VCAP_KEY_IPV6 are
handled by is2_entry_set(). OCELOT_VCAP_KEY_IPV4 looks at
&filter->key.ipv4, and OCELOT_VCAP_KEY_IPV6 at &filter->key.ipv6.
Simply put, when we populate the wrong key field, &filter->key.ipv6
fields "proto.mask" and "proto.value" remain all zeroes (or "don't care").
So is2_entry_set() will enter the "else" of this "if" condition:

if (msk == 0xff && (val == IPPROTO_TCP || val == IPPROTO_UDP))

and proceed to ignore the "proto" field. The resulting rule will match
on all IPv6 traffic, trapping it to the CPU.

This is the reason why the local_termination.sh selftest sees it,
because control traps are stronger than the PGID_MCIPV6 used for
flooding (from the forwarding data path).

But the problem is in fact much deeper. We trap all IPv6 traffic to the
CPU, but if we're bridged, we set skb->offload_fwd_mark = 1, so software
forwarding will not take place and IPv6 traffic will never reach its
destination.

The fix is simple - correct the typos.

I was intentionally inaccurate in the commit message about the breakage
occurring when any PTP timestamping is enabled. In fact it only happens
when L4 timestamping is requested (HWTSTAMP_FILTER_PTP_V2_EVENT or
HWTSTAMP_FILTER_PTP_V2_L4_EVENT). But ptp4l requests a larger RX
timestamping filter than it needs for "-2": HWTSTAMP_FILTER_PTP_V2_EVENT.
I wanted people skimming through git logs to not think that the bug
doesn't affect them because they only use ptp4l in L2 mode.

Fixes: 96ca08c05838 ("net: mscc: ocelot: set up traps for PTP packets")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230207183117.1745754-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
21 months agords: rds_rm_zerocopy_callback() use list_first_entry()
Pietro Borrello [Tue, 7 Feb 2023 18:26:34 +0000 (18:26 +0000)]
rds: rds_rm_zerocopy_callback() use list_first_entry()

rds_rm_zerocopy_callback() uses list_entry() on the head of a list
causing a type confusion.
Use list_first_entry() to actually access the first element of the
rs_zcookie_queue list.

Fixes: 9426bbc6de99 ("rds: use list structure to track information for zerocopy completion notification")
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230202-rds-zerocopy-v3-1-83b0df974f9a@diag.uniroma1.it
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
21 months agoMerge tag 'amd-drm-fixes-6.2-2023-02-08' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 9 Feb 2023 07:04:25 +0000 (17:04 +1000)]
Merge tag 'amd-drm-fixes-6.2-2023-02-08' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.2-2023-02-08:

amdgpu:
- Flickering fixes for DCN 2.1, 3.1.2/3
- Re-enable S/G display on DCN 3.1.4
- Properly fix S/G display with AGP aperture enabled
- Fix cursor offset with 180 rotation
- SMU13 fixes
- Use TGID for GPUVM traces
- Fix oops on in fence error path
- Don't run IB tests on hw rings when sw rings are in use

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230209045321.565132-1-alexander.deucher@amd.com
21 months agoMerge tag 'ipsec-2023-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/klasser...
Jakub Kicinski [Thu, 9 Feb 2023 05:35:38 +0000 (21:35 -0800)]
Merge tag 'ipsec-2023-02-08' of git://git./linux/kernel/git/klassert/ipsec

Steffen Klassert says:

====================
ipsec 2023-02-08

1) Fix policy checks for nested IPsec tunnels when using
   xfrm interfaces. From Benedict Wong.

2) Fix netlink message expression on 32=>64-bit
   messages translators. From Anastasia Belova.

3) Prevent potential spectre v1 gadget in xfrm_xlate32_attr.
   From Eric Dumazet.

4) Always consistently use time64_t in xfrm_timer_handler.
   From Eric Dumazet.

5) Fix KCSAN reported bug: Multiple cpus can update use_time
   at the same time. From Eric Dumazet.

6) Fix SCP copy from IPv4 to IPv6 on interfamily tunnel.
   From Christian Hopps.

* tag 'ipsec-2023-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
  xfrm: fix bug with DSCP copy to v6 from v4 tunnel
  xfrm: annotate data-race around use_time
  xfrm: consistently use time64_t in xfrm_timer_handler()
  xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()
  xfrm: compat: change expression for switch in xfrm_xlate64
  Fix XFRM-I support for nested ESP tunnels
====================

Link: https://lore.kernel.org/r/20230208114322.266510-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
21 months agonet: txgbe: Update support email address
Jiawen Wu [Wed, 8 Feb 2023 02:30:35 +0000 (10:30 +0800)]
net: txgbe: Update support email address

Update new email address for Wangxun 10Gb NIC support team.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://lore.kernel.org/r/20230208023035.3371250-1-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
21 months agodrm/amdgpu/smu: skip pptable init under sriov
Jane Jian [Fri, 13 Jan 2023 10:53:45 +0000 (18:53 +0800)]
drm/amdgpu/smu: skip pptable init under sriov

sriov does not need to init pptable from amdgpu driver
we finish it from PF

Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
21 months agoamd/amdgpu: remove test ib on hw ring
JesseZhang [Wed, 8 Feb 2023 02:07:18 +0000 (10:07 +0800)]
amd/amdgpu: remove test ib on hw ring

test ib function is not necessary on hw ring,
so remove it.

v2: squash in NULL check fix

Signed-off-by: JesseZhang <Jesse.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
21 months agodrm/amdgpu/fence: Fix oops due to non-matching drm_sched init/fini
Guilherme G. Piccoli [Thu, 2 Feb 2023 13:48:56 +0000 (10:48 -0300)]
drm/amdgpu/fence: Fix oops due to non-matching drm_sched init/fini

Currently amdgpu calls drm_sched_fini() from the fence driver sw fini
routine - such function is expected to be called only after the
respective init function - drm_sched_init() - was executed successfully.

Happens that we faced a driver probe failure in the Steam Deck
recently, and the function drm_sched_fini() was called even without
its counter-part had been previously called, causing the following oops:

amdgpu: probe of 0000:04:00.0 failed with error -110
BUG: kernel NULL pointer dereference, address: 0000000000000090
PGD 0 P4D 0
Oops: 0002 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 609 Comm: systemd-udevd Not tainted 6.2.0-rc3-gpiccoli #338
Hardware name: Valve Jupiter/Jupiter, BIOS F7A0113 11/04/2022
RIP: 0010:drm_sched_fini+0x84/0xa0 [gpu_sched]
[...]
Call Trace:
 <TASK>
 amdgpu_fence_driver_sw_fini+0xc8/0xd0 [amdgpu]
 amdgpu_device_fini_sw+0x2b/0x3b0 [amdgpu]
 amdgpu_driver_release_kms+0x16/0x30 [amdgpu]
 devm_drm_dev_init_release+0x49/0x70
 [...]

To prevent that, check if the drm_sched was properly initialized for a
given ring before calling its fini counter-part.

Notice ideally we'd use sched.ready for that; such field is set as the latest
thing on drm_sched_init(). But amdgpu seems to "override" the meaning of such
field - in the above oops for example, it was a GFX ring causing the crash, and
the sched.ready field was set to true in the ring init routine, regardless of
the state of the DRM scheduler. Hence, we ended-up using sched.ops as per
Christian's suggestion [0], and also removed the no_scheduler check [1].

[0] https://lore.kernel.org/amd-gfx/984ee981-2906-0eaf-ccec-9f80975cb136@amd.com/
[1] https://lore.kernel.org/amd-gfx/cd0e2994-f85f-d837-609f-7056d5fb7231@amd.com/

Fixes: 067f44c8b459 ("drm/amdgpu: avoid over-handle of fence driver fini in s3 test (v2)")
Suggested-by: Christian König <christian.koenig@amd.com>
Cc: Guchun Chen <guchun.chen@amd.com>
Cc: Luben Tuikov <luben.tuikov@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
21 months agodrm/amdgpu: Use the TGID for trace_amdgpu_vm_update_ptes
Friedrich Vock [Thu, 2 Feb 2023 16:21:03 +0000 (17:21 +0100)]
drm/amdgpu: Use the TGID for trace_amdgpu_vm_update_ptes

The pid field corresponds to the result of gettid() in userspace.
However, userspace cannot reliably attribute PTE events to processes
with just the thread id. This patch allows userspace to easily
attribute PTE update events to specific processes by comparing this
field with the result of getpid().

For attributing events to specific threads, the thread id is also
contained in the common fields of each trace event.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Friedrich Vock <friedrich.vock@gmx.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
21 months agodrm/amdgpu: Add unique_id support for GC 11.0.1/2
Kent Russell [Mon, 6 Feb 2023 17:21:42 +0000 (12:21 -0500)]
drm/amdgpu: Add unique_id support for GC 11.0.1/2

These can support unique_id, so create the sysfs file for them

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
21 months agodrm/amd/pm: bump SMU 13.0.7 driver_if header version
Evan Quan [Tue, 7 Feb 2023 02:42:31 +0000 (10:42 +0800)]
drm/amd/pm: bump SMU 13.0.7 driver_if header version

This can suppress the warning caused by version mismatch.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
21 months agodrm/amd/pm: bump SMU 13.0.0 driver_if header version
Evan Quan [Tue, 31 Jan 2023 02:40:09 +0000 (10:40 +0800)]
drm/amd/pm: bump SMU 13.0.0 driver_if header version

This can suppress the warning caused by version mismatch.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
21 months agodrm/amd/pm: add SMU 13.0.7 missing GetPptLimit message mapping
Evan Quan [Fri, 3 Feb 2023 07:33:59 +0000 (15:33 +0800)]
drm/amd/pm: add SMU 13.0.7 missing GetPptLimit message mapping

Add missing GetPptLimit message mapping.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
21 months agoMerge tag 'mlx5-fixes-2023-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git...
Jakub Kicinski [Thu, 9 Feb 2023 03:23:44 +0000 (19:23 -0800)]
Merge tag 'mlx5-fixes-2023-02-07' of git://git./linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5 fixes 2023-02-07

This series provides bug fixes to mlx5 driver.

* tag 'mlx5-fixes-2023-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: Serialize module cleanup with reload and remove
  net/mlx5: fw_tracer, Zero consumer index when reloading the tracer
  net/mlx5: fw_tracer, Clear load bit when freeing string DBs buffers
  net/mlx5: Expose SF firmware pages counter
  net/mlx5: Store page counters in a single array
  net/mlx5e: IPoIB, Show unknown speed instead of error
  net/mlx5e: Fix crash unsetting rx-vlan-filter in switchdev mode
  net/mlx5: Bridge, fix ageing of peer FDB entries
  net/mlx5: DR, Fix potential race in dr_rule_create_rule_nic
  net/mlx5e: Update rx ring hw mtu upon each rx-fcs flag change
====================

Link: https://lore.kernel.org/r/20230208030302.95378-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
21 months agodrm/amd/display: fix cursor offset on rotation 180
Melissa Wen [Tue, 31 Jan 2023 16:05:46 +0000 (15:05 -0100)]
drm/amd/display: fix cursor offset on rotation 180

Cursor gets clipped off in the middle of the screen with hw rotation
180. Fix a miscalculation of cursor offset when it's placed near the
edges in the pipe split case.

Cursor bugs with hw rotation were reported on AMD issue tracker:
https://gitlab.freedesktop.org/drm/amd/-/issues/2247

The issues on rotation 270 was fixed by:
https://lore.kernel.org/amd-gfx/20221118125935.4013669-22-Brian.Chang@amd.com/
that partially addressed the rotation 180 too. So, this patch is the
final bits for rotation 180.

Reported-by: Xaver Hugl <xaver.hugl@gmail.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Fixes: 9d84c7ef8a87 ("drm/amd/display: Correct cursor position on horizontal mirror")
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
21 months agodrm/amd/amdgpu: enable athub cg 11.0.3
Kenneth Feng [Fri, 3 Feb 2023 06:19:37 +0000 (14:19 +0800)]
drm/amd/amdgpu: enable athub cg 11.0.3

enable athub cg on gc 11.0.3

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
21 months agoRevert "drm/amd/display: disable S/G display on DCN 3.1.4"
Alex Deucher [Tue, 31 Jan 2023 18:10:55 +0000 (13:10 -0500)]
Revert "drm/amd/display: disable S/G display on DCN 3.1.4"

This reverts commit 9aa15370819294beb7eb67c9dcbf654d79ff8790.

This is fixed now so we can re-enable S/G display on DCN
3.1.4.

Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
21 months agodrm/amd/display: properly handling AGP aperture in vm setup
Alex Deucher [Tue, 31 Jan 2023 14:56:46 +0000 (09:56 -0500)]
drm/amd/display: properly handling AGP aperture in vm setup

Take into account whether or not the AGP aperture is
enabled or not when calculating the system aperture.

Fixes white screens with DCN 3.1.4.

Based on a patch from Yifan Zhang <yifan1.zhang@amd.com>

Cc: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
21 months agodrm/amd/display: disable S/G display on DCN 3.1.2/3
Alex Deucher [Wed, 25 Jan 2023 14:57:27 +0000 (09:57 -0500)]
drm/amd/display: disable S/G display on DCN 3.1.2/3

Causes flickering or white screens in some configurations.
Disable it for now until we can fix the issue.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2352
Cc: roman.li@amd.com
Cc: yifan1.zhang@amd.com
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
21 months agodrm/amd/display: disable S/G display on DCN 2.1.0
Alex Deucher [Thu, 26 Jan 2023 15:15:37 +0000 (10:15 -0500)]
drm/amd/display: disable S/G display on DCN 2.1.0

Causes flickering or white screens in some configurations.
Disable it for now until we can fix the issue.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2352
Cc: roman.li@amd.com
Cc: yifan1.zhang@amd.com
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
21 months agoselftests: Fix failing VXLAN VNI filtering test
Ido Schimmel [Tue, 7 Feb 2023 14:18:19 +0000 (16:18 +0200)]
selftests: Fix failing VXLAN VNI filtering test

iproute2 does not recognize the "group6" and "remote6" keywords. Fix by
using "group" and "remote" instead.

Before:

 # ./test_vxlan_vnifiltering.sh
 [...]
 Tests passed:  25
 Tests failed:   2

After:

 # ./test_vxlan_vnifiltering.sh
 [...]
 Tests passed:  27
 Tests failed:   0

Fixes: 3edf5f66c12a ("selftests: add new tests for vxlan vnifiltering")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230207141819.256689-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
21 months agox86/cpu: Add Lunar Lake M
Kan Liang [Wed, 8 Feb 2023 17:23:40 +0000 (09:23 -0800)]
x86/cpu: Add Lunar Lake M

Intel confirmed the existence of this CPU in Q4'2022
earnings presentation.

Add the CPU model number.

[ dhansen: Merging these as soon as possible makes it easier
   on all the folks developing model-specific features. ]

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20230208172340.158548-1-tony.luck%40intel.com
21 months agox86/kprobes: Fix 1 byte conditional jump target
Nadav Amit [Wed, 8 Feb 2023 07:17:08 +0000 (07:17 +0000)]
x86/kprobes: Fix 1 byte conditional jump target

Commit 3bc753c06dd0 ("kbuild: treat char as always unsigned") broke
kprobes.  Setting a probe-point on 1 byte conditional jump can cause the
kernel to crash when the (signed) relative jump offset gets treated as
unsigned.

Fix by replacing the unsigned 'immediate.bytes' (plus a cast) with the
signed 'immediate.value' when assigning to the relative jump offset.

[ dhansen: clarified changelog ]

Fixes: 3bc753c06dd0 ("kbuild: treat char as always unsigned")
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Suggested-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20230208071708.4048-1-namit%40vmware.com
21 months agodrm/i915: Fix VBT DSI DVO port handling
Ville Syrjälä [Tue, 7 Feb 2023 06:43:35 +0000 (08:43 +0200)]
drm/i915: Fix VBT DSI DVO port handling

Turns out modern (icl+) VBTs still declare their DSI ports
as MIPI-A and MIPI-C despite the PHYs now being A and B.
Remap appropriately to allow the panels declared as MIPI-C
to work.

Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8016
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230207064337.18697-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit 118b5c136c04da705b274b0d39982bb8b7430fc5)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
21 months agoMerge branch 'mptcp-fixes'
David S. Miller [Wed, 8 Feb 2023 09:39:34 +0000 (09:39 +0000)]
Merge branch 'mptcp-fixes'

Matthieu Baerts says:

====================
mptcp: fixes for v6.2

Patch 1 clears resources earlier if there is no more reasons to keep
MPTCP sockets alive.

Patches 2 and 3 fix some locking issues visible in some rare corner
cases: the linked issues should be quite hard to reproduce.

Patch 4 makes sure subflows are correctly cleaned after the end of a
connection.

Patch 5 and 6 improve the selftests stability when running in a slow
environment by transfering data for a longer period on one hand and by
stopping the tests when all expected events have been observed on the
other hand.

All these patches fix issues introduced before v6.2.
====================

Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
21 months agoselftests: mptcp: stop tests earlier
Matthieu Baerts [Tue, 7 Feb 2023 13:04:18 +0000 (14:04 +0100)]
selftests: mptcp: stop tests earlier

These 'endpoint' tests from 'mptcp_join.sh' selftest start a transfer in
the background and check the status during this transfer.

Once the expected events have been recorded, there is no reason to wait
for the data transfer to finish. It can be stopped earlier to reduce the
execution time by more than half.

For these tests, the exchanged data were not verified. Errors, if any,
were ignored but that's fine, plenty of other tests are looking at that.
It is then OK to mute stderr now that we are sure errors will be printed
(and still ignored) because the transfer is stopped before the end.

Fixes: e274f7154008 ("selftests: mptcp: add subflow limits test-cases")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
21 months agoselftests: mptcp: allow more slack for slow test-case
Paolo Abeni [Tue, 7 Feb 2023 13:04:17 +0000 (14:04 +0100)]
selftests: mptcp: allow more slack for slow test-case

A test-case is frequently failing on some extremely slow VMs.
The mptcp transfer completes before the script is able to do
all the required PM manipulation.

Address the issue in the simplest possible way, making the
transfer even more slow.

Additionally dump more info in case of failures, to help debugging
similar problems in the future and init dump_stats var.

Fixes: e274f7154008 ("selftests: mptcp: add subflow limits test-cases")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/323
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
21 months agomptcp: be careful on subflow status propagation on errors
Paolo Abeni [Tue, 7 Feb 2023 13:04:16 +0000 (14:04 +0100)]
mptcp: be careful on subflow status propagation on errors

Currently the subflow error report callback unconditionally
propagates the fallback subflow status to the owning msk.

If the msk is already orphaned, the above prevents the code
from correctly tracking the msk moving to the TCP_CLOSE state
and doing the appropriate cleanup.

All the above causes increasing memory usage over time and
sporadic self-tests failures.

There is a great deal of infrastructure trying to propagate
correctly the fallback subflow status to the owning mptcp socket,
e.g. via mptcp_subflow_eof() and subflow_sched_work_if_closed():
in the error propagation path we need only to cope with unorphaned
sockets.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/339
Fixes: 15cc10453398 ("mptcp: deliver ssk errors to msk")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>