The Kconfig notes mention staging drivers that have
since been removed so update the driver's description
so it no longer references the staging rtl8723au and
rtl8192u drivers which have now been deleted.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805221910.3765214-1-pbrobinson@gmail.com
The delay option is the period in unit of second for WoWLAN firmware
to wait before the first scan. We get the option from cfg80211 and
practice it. Another, in some platform, WoWLAN firmware may found
configured network and then trigger resume process, before suspend
process is completed, lead to the wakeup function failed.
So the default value is set one to avoid the issue.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-5-pkshih@realtek.com
Net-detect is an option of WoWLAN to allow the device to
be woken up from suspend mode when configured network is detected.
When user enables net-detect and lets the device enter suspend
state, WoWLAN firmware will periodically scan until beacon or
probe response of configured networks are received. If configured
networks are detected, WoWLAN firmware will trigger resume process.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-4-pkshih@realtek.com
When net-detect is enabled, WoWLAN firmware will periodically
scan until beacon or probe response of configured networks are
received. To reduce power consumption, the FW-IPS mode is
implemented to keep WiFi chip in idle mode between each scan.
The FW-IPS is controlled by WoWLAN firmware to turn of some critical
electrical components, and is different from the original IPS mode
which most electrical components are turned off.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-3-pkshih@realtek.com
Driver has supported different WoWLAN reason code by commit 0e52102177
("wifi: rtw89: wow: update WoWLAN reason register for different FW")
since firmware version 0.27.80.0. The old driver can't support two
kinds of WoWLAN reason, so increase firmware format to v1.
Also driver tables of BB and RF registers and power values will be added
into v1 format.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-2-pkshih@realtek.com
Alan Maguire says:
====================
As previously discussed here [1], long-lived sockets can miss
a chance to set additional callbacks if a sock ops program
was not attached early in their lifetime. Adding support
to bpf_setsockopt() to set callback flags (and bpf_getsockopt()
to retrieve them) provides other opportunities to enable callbacks,
either directly via a cgroup/setsockopt intercepted setsockopt()
or via a socket iterator.
Patch 1 adds bpf_[get|set]sockopt() support; patch 2 adds testing
for it via a sockops programs, along with verification via a
cgroup/getsockopt program.
Changes since v1 [2]:
- Removed unneeded READ_ONCE() (Martin, patch 1)
- Reworked sockopt test to leave existing tests undisturbed while adding
test_nonstandard_opt() test to cover the TCP_BPF_SOCK_OPS_CB_FLAGS
case; test verifies that value set via bpf_setsockopt() is what we
expect via a call to getsockopt() which is caught by a
cgroup/getsockopt program to provide the flags value (Martin, patch 2)
- Removed unneeded iterator test (Martin)
[1] https://lore.kernel.org/bpf/f42f157b-6e52-dd4d-3d97-9b86c84c0b00@oracle.com/
[2] https://lore.kernel.org/bpf/20240802152929.2695863-1-alan.maguire@oracle.com/
====================
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Add tests to set TCP sockopt TCP_BPF_SOCK_OPS_CB_FLAGS via
bpf_setsockopt() and use a cgroup/getsockopt program to retrieve
the value to verify it was set.
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/r/20240808150558.1035626-3-alan.maguire@oracle.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Currently the only opportunity to set sock ops flags dictating
which callbacks fire for a socket is from within a TCP-BPF sockops
program. This is problematic if the connection is already set up
as there is no further chance to specify callbacks for that socket.
Add TCP_BPF_SOCK_OPS_CB_FLAGS to bpf_setsockopt() and bpf_getsockopt()
to allow users to specify callbacks later, either via an iterator
over sockets or via a socket-specific program triggered by a
setsockopt() on the socket.
Previous discussion on this here [1].
[1] https://lore.kernel.org/bpf/f42f157b-6e52-dd4d-3d97-9b86c84c0b00@oracle.com/
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/r/20240808150558.1035626-2-alan.maguire@oracle.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
sched_ext currently doesn't generate messages when the BPF scheduler is
enabled and disabled unless there are errors. It is useful to have paper
trail. Improve logging around enable/disable:
- Generate info messages on enable and non-error disable.
- Update error exit message formatting so that it's consistent with
non-error message. Also, prefix ei->msg with the BPF scheduler's name to
make it clear where the message is coming from.
- Shorten scx_exit_reason() strings for SCX_EXIT_UNREG* for brevity and
consistency.
v2: Use pr_*() instead of KERN_* consistently. (David)
Signed-off-by: Tejun Heo <tj@kernel.org>
Suggested-by: Phil Auld <pauld@redhat.com>
Reviewed-by: Phil Auld <pauld@redhat.com>
Acked-by: David Vernet <void@manifault.com>
scx_rq_online() currently only tests SCX_RQ_ONLINE. This isn't fully correct
- e.g. consume_dispatch_q() uses task_run_on_remote_rq() which tests
scx_rq_online() to see whether the current rq can run the task, and, if so,
calls consume_remote_task() to migrate the task to @rq. While the test
itself was done while locking @rq, @rq can be temporarily unlocked by
consume_remote_task() and nothing prevents SCX_RQ_ONLINE from going offline
before the migration takes place.
To address the issue, add cpu_active() test to scx_rq_online(). There is a
synchronize_rcu() between cpu_active() being cleared and the rq going
offline, so if an on-going scheduling operation sees cpu_active(), the
associated rq is guaranteed to not go offline until the scheduling operation
is complete.
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 60c27fb59f ("sched_ext: Implement sched_ext_ops.cpu_online/offline()")
Acked-by: David Vernet <void@manifault.com>
process_ddsp_deferred_locals() executes deferred direct dispatches to the
local DSQs of remote CPUs. It iterates the tasks on
rq->scx.ddsp_deferred_locals list, removing and calling
dispatch_to_local_dsq() on each. However, the list is protected by the rq
lock that can be dropped by dispatch_to_local_dsq() temporarily, so the list
can be modified during the iteration, which can lead to oopses and other
failures.
Fix it by popping from the head of the list instead of iterating the list.
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 5b26f7b920 ("sched_ext: Allow SCX_DSQ_LOCAL_ON for direct dispatches")
Acked-by: David Vernet <void@manifault.com>
Merge series from Dmitry Baryshkov <dmitry.baryshkov@linaro.org>:
While debugging broken audio issues on some of Qualcomm platforms I
stumbled upon the kernel not providing the actual error information.
It prints an error from the wsa_macro driver, but the actual issue is in
the VA macro driver. Add error message to point to the actual error
location.
va_macro 3370000.codec: Unknown VA Codec version, ID: 00 / 0f / 00
wsa_macro 3240000.codec: Unsupported Codec version (0)
Merge series from Linus Walleij <linus.walleij@linaro.org>:
The TI TAS drivers use some legacy GPIO code and headers,
this series fixes it up.
The TAS2781 is a special case since it adds a handful of
lines of deviating code to reconfigure a GPIO line for
IRQ mode and then never actually use the IRQ obtained in
the code. Is the line used by autonomous hardware? I'm
puzzled by this.
Anyways the patch suggest how to solve this properly by
fixing the parent irqchip and I'm happy to help.
Current release - regressions:
- eth: bnxt_en: fix memory out-of-bounds in bnxt_fill_hw_rss_tbl()
on older chips
Current release - new code bugs:
- ethtool: fix off-by-one error / kdoc contradicting the code
for max RSS context IDs
- Bluetooth: hci_qca:
- QCA6390: fix support on non-DT platforms
- QCA6390: don't call pwrseq_power_off() twice
- fix a NULL-pointer derefence at shutdown
- eth: ice: fix incorrect assigns of FEC counters
Previous releases - regressions:
- mptcp: fix handling endpoints with both 'signal' and 'subflow'
flags set
- virtio-net: fix changing ring count when vq IRQ coalescing not
supported
- eth: gve: fix use of netif_carrier_ok() during reconfig / reset
Previous releases - always broken:
- eth: idpf: fix bugs in queue re-allocation on reconfig / reset
- ethtool: fix context creation with no parameters
Misc:
- linkwatch: use system_unbound_wq to ease RTNL contention
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth.
Current release - regressions:
- eth: bnxt_en: fix memory out-of-bounds in bnxt_fill_hw_rss_tbl() on
older chips
Current release - new code bugs:
- ethtool: fix off-by-one error / kdoc contradicting the code for max
RSS context IDs
- Bluetooth: hci_qca:
- QCA6390: fix support on non-DT platforms
- QCA6390: don't call pwrseq_power_off() twice
- fix a NULL-pointer derefence at shutdown
- eth: ice: fix incorrect assigns of FEC counters
Previous releases - regressions:
- mptcp: fix handling endpoints with both 'signal' and 'subflow'
flags set
- virtio-net: fix changing ring count when vq IRQ coalescing not
supported
- eth: gve: fix use of netif_carrier_ok() during reconfig / reset
Previous releases - always broken:
- eth: idpf: fix bugs in queue re-allocation on reconfig / reset
- ethtool: fix context creation with no parameters
Misc:
- linkwatch: use system_unbound_wq to ease RTNL contention"
* tag 'net-6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (41 commits)
net: dsa: microchip: disable EEE for KSZ8567/KSZ9567/KSZ9896/KSZ9897.
ethtool: Fix context creation with no parameters
net: ethtool: fix off-by-one error in max RSS context IDs
net: pse-pd: tps23881: include missing bitfield.h header
net: fec: Stop PPS on driver remove
net: bcmgenet: Properly overlay PHY and MAC Wake-on-LAN capabilities
l2tp: fix lockdep splat
net: stmmac: dwmac4: fix PCS duplex mode decode
idpf: fix UAFs when destroying the queues
idpf: fix memleak in vport interrupt configuration
idpf: fix memory leaks and crashes while performing a soft reset
bnxt_en : Fix memory out-of-bounds in bnxt_fill_hw_rss_tbl()
net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()
net/smc: add the max value of fallback reason count
Bluetooth: hci_sync: avoid dup filtering when passive scanning with adv monitor
Bluetooth: l2cap: always unlock channel in l2cap_conless_channel()
Bluetooth: hci_qca: fix a NULL-pointer derefence at shutdown
Bluetooth: hci_qca: fix QCA6390 support on non-DT platforms
Bluetooth: hci_qca: don't call pwrseq_power_off() twice for QCA6390
ice: Fix incorrect assigns of FEC counts
...
This WA is applied while initializing the media GT, but it a primary
GT WA (because it modifies a register on the primary GT), so the XE_WA
macro is returning false even when the WA should be applied.
Fix this by using the primary GT in the macro.
Note that this WA only applies to PXP and we don't yet support that in
Xe, so there are no negative effects to this bug, which is why we didn't
see any errors in testing.
v2: use the primary GT in the macro instead of marking the WA as
platform-wide (Lucas, Matt).
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240807235333.1370915-1-daniele.ceraolospurio@intel.com
Enable workarounds for HW bug where render engine reset fails. Given
that we're bumping the minimum required GuC version to 70.29, we're
guaranteed to always have support for this KLV in the GuC.
v2: Enable KLV correctly for either workaround (Lucas)
v4: Add check for minimum supported GuC firmware version. Enable w/a for
hw version 20.01 too. (Daniele)
v5 (Daniele): remove now unneeded fw type and version checks (JohnH)
Signed-off-by: Julia Filipchuk <julia.filipchuk@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240805205435.921921-1-daniele.ceraolospurio@intel.com
- Have reading of event format files test if the meta data still exists.
When a event is freed, a flag (EVENT_FILE_FL_FREED) in the meta data is
set to state that it is to prevent any new references to it from happening
while waiting for existing references to close. When the last reference
closes, the meta data is freed. But the "format" was missing a check to
this flag (along with some other files) that allowed new references to
happen, and a use-after-free bug to occur.
- Have the trace event meta data use the refcount infrastructure instead
of relying on its own atomic counters.
- Have tracefs inodes use alloc_inode_sb() for allocation instead of
using kmem_cache_alloc() directly.
- Have eventfs_create_dir() return an ERR_PTR instead of NULL as
the callers expect a real object or an ERR_PTR.
- Have release_ei() use call_srcu() and not call_rcu() as all the
protection is on SRCU and not RCU.
- Fix ftrace_graph_ret_addr() to use the task passed in and not current.
- Fix overflow bug in get_free_elt() where the counter can overflow
the integer and cause an infinite loop.
- Remove unused function ring_buffer_nr_pages()
- Have tracefs freeing use the inode RCU infrastructure instead of
creating its own. When the kernel had randomize structure fields
enabled, the rcu field of the tracefs_inode was overlapping the
rcu field of the inode structure, and corrupting it. Instead,
use the destroy_inode() callback to do the initial cleanup of
the code, and then have free_inode() free it.
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Merge tag 'trace-v6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Have reading of event format files test if the metadata still exists.
When a event is freed, a flag (EVENT_FILE_FL_FREED) in the metadata
is set to state that it is to prevent any new references to it from
happening while waiting for existing references to close. When the
last reference closes, the metadata is freed. But the "format" was
missing a check to this flag (along with some other files) that
allowed new references to happen, and a use-after-free bug to occur.
- Have the trace event meta data use the refcount infrastructure
instead of relying on its own atomic counters.
- Have tracefs inodes use alloc_inode_sb() for allocation instead of
using kmem_cache_alloc() directly.
- Have eventfs_create_dir() return an ERR_PTR instead of NULL as the
callers expect a real object or an ERR_PTR.
- Have release_ei() use call_srcu() and not call_rcu() as all the
protection is on SRCU and not RCU.
- Fix ftrace_graph_ret_addr() to use the task passed in and not
current.
- Fix overflow bug in get_free_elt() where the counter can overflow the
integer and cause an infinite loop.
- Remove unused function ring_buffer_nr_pages()
- Have tracefs freeing use the inode RCU infrastructure instead of
creating its own.
When the kernel had randomize structure fields enabled, the rcu field
of the tracefs_inode was overlapping the rcu field of the inode
structure, and corrupting it. Instead, use the destroy_inode()
callback to do the initial cleanup of the code, and then have
free_inode() free it.
* tag 'trace-v6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracefs: Use generic inode RCU for synchronizing freeing
ring-buffer: Remove unused function ring_buffer_nr_pages()
tracing: Fix overflow in get_free_elt()
function_graph: Fix the ret_stack used by ftrace_graph_ret_addr()
eventfs: Use SRCU for freeing eventfs_inodes
eventfs: Don't return NULL in eventfs_create_dir()
tracefs: Fix inode allocation
tracing: Use refcount for trace_event_file reference counter
tracing: Have format file honor EVENT_FILE_FL_FREED
Running on a:
root@x1:~# grep 'model name' -m1 /proc/cpuinfo
model name : 13th Gen Intel(R) Core(TM) i7-1365U
root@x1:~#
It skips all the tests with:
root@x1:~# perf test -vvvv LBR
97: perf record LBR tests:
--- start ---
test child forked, pid 2033388
Skip: only x86 CPUs support LBR
---- end(-2) ----
97: perf record LBR tests : Skip
root@x1:~#
Because the test checks for the /sys/devices/cpu/caps/branches file,
that isn't present as we have instead:
root@x1:~# ls -la /sys/devices/cpu*/caps/branches
-r--r--r--. 1 root root 4096 Aug 8 11:22 /sys/devices/cpu_atom/caps/branches
-r--r--r--. 1 root root 4096 Aug 8 11:21 /sys/devices/cpu_core/caps/branches
root@x1:~#
If we check as well for one of those,
/sys/devices/cpu_core/caps/branches, then we don't skip the tests and
all are run on these x86 Intel Hybrid systems as well, passing all of
them:
root@x1:~# perf test -vvvv LBR
97: perf record LBR tests:
--- start ---
test child forked, pid 2034956
LBR callgraph
[ perf record: Woken up 5 times to write data ]
[ perf record: Captured and wrote 1.812 MB /tmp/__perf_test.perf.data.B2HvQ (8114 samples) ]
LBR callgraph [Success]
LBR any branch test
[ perf record: Woken up 25 times to write data ]
[ perf record: Captured and wrote 6.382 MB /tmp/__perf_test.perf.data.B2HvQ (8071 samples) ]
LBR any branch test: 8071 samples
LBR any branch test [Success]
LBR any call test
[ perf record: Woken up 23 times to write data ]
[ perf record: Captured and wrote 6.208 MB /tmp/__perf_test.perf.data.B2HvQ (8092 samples) ]
LBR any call test: 8092 samples
LBR any call test [Success]
LBR any ret test
[ perf record: Woken up 24 times to write data ]
[ perf record: Captured and wrote 6.396 MB /tmp/__perf_test.perf.data.B2HvQ (8093 samples) ]
LBR any ret test: 8093 samples
LBR any ret test [Success]
LBR any indirect call test
[ perf record: Woken up 25 times to write data ]
[ perf record: Captured and wrote 6.344 MB /tmp/__perf_test.perf.data.B2HvQ (8067 samples) ]
LBR any indirect call test: 8067 samples
LBR any indirect call test [Success]
LBR any indirect jump test
[ perf record: Woken up 12 times to write data ]
[ perf record: Captured and wrote 3.073 MB /tmp/__perf_test.perf.data.B2HvQ (8061 samples) ]
LBR any indirect jump test: 8061 samples
LBR any indirect jump test [Success]
LBR direct calls test
[ perf record: Woken up 25 times to write data ]
[ perf record: Captured and wrote 6.380 MB /tmp/__perf_test.perf.data.B2HvQ (8076 samples) ]
LBR direct calls test: 8076 samples
LBR direct calls test [Success]
LBR any indirect user call test
[ perf record: Woken up 5 times to write data ]
[ perf record: Captured and wrote 1.597 MB /tmp/__perf_test.perf.data.B2HvQ (8079 samples) ]
LBR any indirect user call test: 8079 samples
LBR any indirect user call test [Success]
LBR system wide any branch test
[ perf record: Woken up 26 times to write data ]
[ perf record: Captured and wrote 9.088 MB /tmp/__perf_test.perf.data.B2HvQ (9209 samples) ]
LBR system wide any branch test: 9209 samples
LBR system wide any branch test [Success]
LBR system wide any call test
[ perf record: Woken up 25 times to write data ]
[ perf record: Captured and wrote 8.945 MB /tmp/__perf_test.perf.data.B2HvQ (9333 samples) ]
LBR system wide any call test: 9333 samples
LBR system wide any call test [Success]
LBR parallel any branch test
LBR parallel any call test
LBR parallel any ret test
LBR parallel any indirect call test
LBR parallel any indirect jump test
LBR parallel direct calls test
LBR parallel system wide any branch test
LBR parallel any indirect user call test
LBR parallel system wide any call test
[ perf record: Woken up 9 times to write data ]
[ perf record: Woken up 51 times to write data ]
[ perf record: Woken up 1 times to write data ]
[ perf record: Woken up 5 times to write data ]
[ perf record: Woken up 559 times to write data ]
[ perf record: Woken up 14 times to write data ]
[ perf record: Woken up 17 times to write data ]
[ perf record: Woken up 1 times to write data ]
[ perf record: Woken up 11 times to write data ]
[ perf record: Captured and wrote 0.150 MB /tmp/__perf_test.perf.data.lANpR (1909 samples) ]
[ perf record: Captured and wrote 2.371 MB /tmp/__perf_test.perf.data.Olum8 (3033 samples) ]
[ perf record: Captured and wrote 1.230 MB /tmp/__perf_test.perf.data.njfJ8 (1742 samples) ]
[ perf record: Captured and wrote 5.554 MB /tmp/__perf_test.perf.data.4ZTrj (29662 samples) ]
[ perf record: Captured and wrote 19.906 MB /tmp/__perf_test.perf.data.dlGQt (29576 samples) ]
[ perf record: Captured and wrote 0.289 MB /tmp/__perf_test.perf.data.CAT7y (4311 samples) ]
[ perf record: Captured and wrote 3.129 MB /tmp/__perf_test.perf.data.diuKG (3971 samples) ]
LBR parallel any indirect user call test: 1909 samples
[ perf record: Captured and wrote 4.858 MB /tmp/__perf_test.perf.data.sVjtN (6130 samples) ]
LBR parallel any indirect user call test [Success]
[ perf record: Captured and wrote 3.669 MB /tmp/__perf_test.perf.data.AJtNI (4827 samples) ]
LBR parallel any indirect jump test: 4311 samples
LBR parallel any indirect jump test [Success]
LBR parallel direct calls test: 3033 samples
LBR parallel direct calls test [Success]
LBR parallel any indirect call test: 1742 samples
LBR parallel any indirect call test [Success]
LBR parallel any call test: 4827 samples
LBR parallel any call test [Success]
LBR parallel any branch test: 6130 samples
LBR parallel any branch test [Success]
LBR parallel system wide any branch test: 29662 samples
LBR parallel any ret test: 3971 samples
LBR parallel any ret test [Success]
LBR parallel system wide any branch test [Success]
LBR parallel system wide any call test: 29576 samples
LBR parallel system wide any call test [Success]
---- end(0) ----
97: perf record LBR tests : Ok
root@x1:~#
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/ZrTXftup0H46R8WK@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adds coverage for LBR operations and LBR callgraph.
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240808054644.1286065-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The 'struct callchain_cursor_node' has a 'struct map_symbol' whose maps
and map members are reference counted. Ensure these values use a _get
routine to increment the reference counts and use map_symbol__exit() to
release the reference counts.
Do similar for 'struct thread's prev_lbr_cursor, but save the size of
the prev_lbr_cursor array so that it may be iterated.
Ensure that when stitch_nodes are placed on the free list the
map_symbols are exited.
Fix resolve_lbr_callchain_sample() by replacing list_replace_init() to
list_splice_init(), so the whole list is moved and nodes aren't leaked.
A reproduction of the memory leaks is possible with a leak sanitizer
build in the perf report command of:
```
$ perf record -e cycles --call-graph lbr perf test -w thloop
$ perf report --stitch-lbr
```
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Fixes: ff165628d7 ("perf callchain: Stitch LBR call stack")
Signed-off-by: Ian Rogers <irogers@google.com>
[ Basic tests after applying the patch, repeating the example above ]
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240808054644.1286065-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Assorted little stuff:
- lockdep fixup for lockdep_set_notrack_class()
- we can now remove a device when using erasure coding without
deadlocking, though we still hit other issues
- the "allocator stuck" timeout is now configurable, and messages are
ratelimited; default timeout has been increased from 10 seconds to 30
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Merge tag 'bcachefs-2024-08-08' of git://evilpiepirate.org/bcachefs
Pull bcachefs fixes from Kent Overstreet:
"Assorted little stuff:
- lockdep fixup for lockdep_set_notrack_class()
- we can now remove a device when using erasure coding without
deadlocking, though we still hit other issues
- the 'allocator stuck' timeout is now configurable, and messages are
ratelimited. The default timeout has been increased from 10 seconds
to 30"
* tag 'bcachefs-2024-08-08' of git://evilpiepirate.org/bcachefs:
bcachefs: Use bch2_wait_on_allocator() in btree node alloc path
bcachefs: Make allocator stuck timeout configurable, ratelimit messages
bcachefs: Add missing path_traverse() to btree_iter_next_node()
bcachefs: ec should not allocate from ro devs
bcachefs: Improved allocator debugging for ec
bcachefs: Add missing bch2_trans_begin() call
bcachefs: Add a comment for bucket helper types
bcachefs: Don't rely on implicit unsigned -> signed integer conversion
lockdep: Fix lockdep_set_notrack_class() for CONFIG_LOCK_STAT
bcachefs: Fix double free of ca->buckets_nouse
Unfortunately it appears that vma_is_initial_heap() is currently broken
for applications that do not currently have any heap allocated, e.g.
brk == start_brk. The breakage is such that it will cause SELinux to
check for the process/execheap permission on memory regions that cross
brk/start_brk even when there is no heap.
The proper fix would be to correct vma_is_initial_heap(), but as there
are multiple callers I am hesitant to unilaterally modify the helper
out of concern that I would end up breaking some other subsystem. The
mm developers have been made aware of the situation and hopefully they
will have a fix at some point in the future, but we need a fix soon so
we are simply going to revert our use of vma_is_initial_heap() in favor
of our old logic/code which works as expected, even in the face of a
zero size heap. We can return to using vma_is_initial_heap() at some
point in the future when it is fixed.
Cc: stable@vger.kernel.org
Reported-by: Marc Reisner <reisner.marc@gmail.com>
Closes: https://lore.kernel.org/all/ZrPmoLKJEf1wiFmM@marcreisner.com
Fixes: 68df1baf15 ("selinux: use vma_is_initial_stack() and vma_is_initial_heap()")
Signed-off-by: Paul Moore <paul@paul-moore.com>
To avoid -EINPROGRESS cases on connect that just ends in a retry we just
call connect in a synchronized way to wait until its done. Since commit
dbb751ffab ("fs: dlm: parallelize lowcomms socket handling") we have a
non ordered workqueue running for serving the DLM sockets that allows us
to call send/recv for each DLM socket connection in parallel. Before
each worker needed to wait until the previous worker was done and
probably the reason why connect() was called in an asynchronous way to
not block other workers. This is however not necessary anymore as other
socket handling workers don't need to wait.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This patch moves the xarray lookup functionality for the lkb out of the
ls_lkbxa_lock read lock handling. We can do that as the xarray should be
possible to access lockless in case of reader like xa_load(). We confirm
under ls_lkbxa_lock that the lkb is still part of the data structure and
take a reference when its still part of ls_lkbxa to avoid being freed
after doing the lookup. To do a check if the lkb is still part of the
ls_lkbxa data structure we use a kref_read() as the last put will remove
it from the ls_lkbxa data structure and any reference taken means it is
still part of ls_lkbxa.
A similar approach was done with the DLM rsb rhashtable just with a flag
instead of the refcounter because the refcounter has a slightly
different meaning.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
The rhashtable structure is lockless for readers such as
rhashtable_lookup_fast(). It should be save to call this lookup
functionality out of holding ls_rsbtbl_lock to get the rsb pointer out
of the hash. This reduce the contention time of ls_rsbtbl_lock in some
cases. We still need to check if the rsb is part of the check as this
state can be changed while ls_rsbtbl_lock is not held. If its part of
the rhashtable data structure we take a reference to be sure it will not
be freed after we drop the ls_rsbtbl_lock read lock.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Since commit 01fdeca1cc ("dlm: use rcu to avoid an extra rsb struct
lookup") _dlm_master_lookup() is called under rcu lock that prevents
that the rsb structure is being freed. There was a missing change to
avoid an additional lookup and just check that the rsb is still part of
the ls_rsbtbl structure. This patch is doing such check instead of
lookup the rsb structure again.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This patch handles freeing of lockspace resources asynchronously besides
the release_lockspace() context. The release_lockspace() context is
sometimes called in a time critical context, e.g. umount syscall. Most
every user space init system will timeout if it takes too long. To
reduce the potential waiting time we deregister in release_lockspace()
the lockspace from the DLM subsystem and do the actual releasing of
lockspace resource in a worker of a workqueue following recommendation
of:
https://lore.kernel.org/all/49925af7-78a8-a3dd-bce6-cfc02e1a9236@I-love.SAKURA.ne.jp/T/#u
as flushing of system workqueues are not allowed. The most time to
release the DLM resources are spent to release the data structures
"ls->ls_lkbxa" and "ls->ls_rsbtbl" as they iterate over each entries and
those data structures can contain millions of entries. This patch handles
for now only freeing of those data structures as those operations are
the most reason why release_lockspace() blocking of being returned.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This patch removes the releasing of the "struct dlm ls" resource out of
the kobject handling. Instead we run kfree() after kobject_put() of the
lockspace kobject structure that should always being the last put call.
This prepares to split the releasing of all lockspace resources
asynchronously in the background and just deregister everything in
release_lockspace().
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This patch adds a warn on if is_master() and dlm_is_removed() checks on
invalid nodeid states that are probably not what the caller wants to do
here. The is_master() function checking on r->res_nodeid is invalid when
it is set to -1, whereas the dlm_is_removed() has a different meaning
as "nodeid member" and also 0 is invalid.
We run into these cases and this patch changes those cases as we never
will run into them. There should be no functional changes as the
condition should return the same result. However this patch signals now
on caller level that there might be an "extra" case to handle here.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This patch will remote the return of an invalid nodeid value when
local_comm is not set. This case should never happen as the DLM stack
tries to compare valid nodeids with an invalid nodeid returned by
dlm_our_nodeid(). Instead we let it crash to getting at least recognized
if we running into such state.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This patch removes unnecessary refcounts that are obviously not
necessary because either when the pointer is passed as parameter or it
is part of a list we should already hold a reference to it.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This patch removes a unnecessary parameter from DLM memory allocation
helpers and reduce some functions by just directly reply the pointer
address of the allocated memory.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
The local u64 variable refdiv_val has the same value as the local u32
variable val and can be removed. Remove it and use val directly as the
divisor to also remove the following Coccinelle/coccicheck warning
reported by do_div.cocci:
WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead
Use the preferred div_u64() function instead of the do_div() macro.
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Link: https://lore.kernel.org/r/20240801103616.20430-1-thorsten.blum@toblux.com
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This reverts commit 2052138b7d.
This breaks the TeVii s480 dual DVB-S2 S660. The device has a bulk in
endpoint but no corresponding out endpoint, so the device does not pass
the "has both receive and send bulk endpoint" test.
Seemingly this device does not use dvb_usb_generic_rw() so I have tried
removing the generic_bulk_ctrl_endpoint entry, but this resulted in
different problems.
As we have no explanation yet, revert.
$ dmesg | grep -i -e dvb -e dw21 -e usb\ 4
[ 0.999122] usb 1-1: new high-speed USB device number 2 using ehci-pci
[ 1.023123] usb 4-1: new high-speed USB device number 2 using ehci-pci
[ 1.130247] usb 1-1: New USB device found, idVendor=9022, idProduct=d482,
+bcdDevice= 0.01
[ 1.130257] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.152323] usb 4-1: New USB device found, idVendor=9022, idProduct=d481,
+bcdDevice= 0.01
[ 1.152329] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 6.701033] dvb-usb: found a 'TeVii S480.2 USB' in cold state, will try to
+load a firmware
[ 6.701178] dvb-usb: downloading firmware from file 'dvb-usb-s660.fw'
[ 6.701179] dw2102: start downloading DW210X firmware
[ 6.703715] dvb-usb: found a 'Microsoft Xbox One Digital TV Tuner' in cold
+state, will try to load a firmware
[ 6.703974] dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.20.fw'
[ 6.756432] usb 1-1: USB disconnect, device number 2
[ 6.862119] dvb-usb: found a 'TeVii S480.2 USB' in warm state.
[ 6.862194] dvb-usb: TeVii S480.2 USB error while loading driver (-22)
[ 6.862209] dvb-usb: found a 'TeVii S480.1 USB' in cold state, will try to
+load a firmware
[ 6.862244] dvb-usb: downloading firmware from file 'dvb-usb-s660.fw'
[ 6.862245] dw2102: start downloading DW210X firmware
[ 6.914811] usb 4-1: USB disconnect, device number 2
[ 7.014131] dvb-usb: found a 'TeVii S480.1 USB' in warm state.
[ 7.014487] dvb-usb: TeVii S480.1 USB error while loading driver (-22)
[ 7.014538] usbcore: registered new interface driver dw2102
Closes: https://lore.kernel.org/stable/20240801165146.38991f60@mir/
Fixes: 2052138b7d ("media: dvb-usb: Fix unexpected infinite loop in dvb_usb_read_remote_control()")
Reported-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Device tuning files made with early revision tooling may contain
configuration that can unmask IRQ signals that are owned by the host.
Adding a safe default to the regmap patch ensures that the hardware
matches the driver expectations.
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Link: https://patch.msgid.link/20240807142648.46932-1-simont@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
With PREEMPT_RT enabled a spinlock_t becomes a sleeping lock.
This is usually not a problem with spinlocks used in IRQ context since
IRQ handlers get threaded. However, if IRQF_ONESHOT is set, the primary
handler won't be force-threaded and runs always in hardirq context. This is
a problem because spinlock_t requires a preemptible context on PREEMPT_RT.
In this particular instance, regmap mmio uses spinlock_t to protect the
register access and IRQF_ONESHOT is set on the IRQ. In this case, it is
actually better to do everything in threaded handler and it solves the
problem with PREEMPT_RT.
Reported-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Closes: https://lore.kernel.org/linux-amlogic/20240729131652.3012327-1-avkrasnov@salutedevices.com
Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Fixes: b11d26660d ("ASoC: meson: axg-fifo: use threaded irq to check periods")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20240807162705.4024136-1-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Now that most kernel work on sound has moved over to the linux-sound
mailing list so should the Cirrus Logic audio parts.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20240807140140.421359-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The reset GPIO of WCD9390/WCD9395 is active low and that's how it is
routed on typical boards, so correct the example DTS to use expected
polarity, instead of IRQ flag (which is a logical mistake on its own).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240806114931.40090-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The reset GPIO of WCD9380/WCD9385 is active low and that's how it is
routed on typical boards, so correct the example DTS to use expected
polarity.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240806114931.40090-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The reset GPIO of WCD9340/WCD9341 is active low and that's how it is
routed on typical boards, so correct the example DTS to use expected
polarity.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240806114931.40090-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The reset GPIO of WCD9370/WCD9375 is active low and that's how it is
routed on typical boards, so correct the example DTS to use expected
polarity.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240806114931.40090-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
We find that we need to set snd_jack_types to 0. If not,
there will be a probability of button detection errors
Signed-off-by: Zhang Yi <zhangyi@everest-semi.com>
Link: https://patch.msgid.link/20240807025356.24904-2-zhangyi@everest-semi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Lenovo Thinkpad E14 Gen 6 (model type 21M3)
needs a quirk entry for internal mic to work.
Signed-off-by: Krzysztof Stępniak <kfs.szk@gmail.com>
Link: https://patch.msgid.link/20240807001219.1147-1-kfs.szk@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Russell King reported that the arm cbc(aes) crypto module hangs when
loaded, and Herbert Xu bisected it to commit 9b9879fc03 ("modules:
catch concurrent module loads, treat them as idempotent"), and noted:
"So what's happening here is that the first modprobe tries to load a
fallback CBC implementation, in doing so it triggers a load of the
exact same module due to module aliases.
IOW we're loading aes-arm-bs which provides cbc(aes). However, this
needs a fallback of cbc(aes) to operate, which is made out of the
generic cbc module + any implementation of aes, or ecb(aes). The
latter happens to also be provided by aes-arm-cb so that's why it
tries to load the same module again"
So loading the aes-arm-bs module ends up wanting to recursively load
itself, and the recursive load then ends up waiting for the original
module load to complete.
This is a regression, in that it used to be that we just tried to load
the module multiple times, and then as we went on to install it the
second time we would instead just error out because the module name
already existed.
That is actually also exactly what the original "catch concurrent loads"
patch did in commit 9828ed3f69 ("module: error out early on concurrent
load of the same module file"), but it turns out that it ends up being
racy, in that erroring out before the module has been fully initialized
will cause failures in dependent module loading.
See commit ac2263b588 (which was the revert of that "error out early")
commit for details about why erroring out before the module has been
initialized is actually fundamentally racy.
Now, for the actual recursive module load (as opposed to just
concurrently loading the same module twice), the race is not an issue.
At the same time it's hard for the kernel to see that this is recursion,
because the module load is always done from a usermode helper, so the
recursion is not some simple callchain within the kernel.
End result: this is not the real fix, but this at least adds a warning
for the situation (admittedly much too late for all the debugging pain
that Russell and Herbert went through) and if we can come to a
resolution on how to detect the recursion properly, this re-organizes
the code to make that easier.
Link: https://lore.kernel.org/all/ZrFHLqvFqhzykuYw@shell.armlinux.org.uk/
Reported-by: Russell King <linux@armlinux.org.uk>
Debugged-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
.set_acl() requires a dentry, and if one isn't passed it marks the VFS
inode as not having an ACL.
This has been causing inodes with ACLs to have them "disappear" on
bcachefs filesystem, depending on which path those inodes get pulled
into the cache from.
Switching to .get_inode_acl(), like other local filesystems, fixes this.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
- Cleanups and improved struct packing (Kanchan)
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Merge tag 'nvme-6.11-2024-08-08' of git://git.infradead.org/nvme into block-6.11
Pull NVMe fixes from Keith:
"nvme fixes for Linux 6.11
- Cleanups and improved struct packing (Kanchan)"
* tag 'nvme-6.11-2024-08-08' of git://git.infradead.org/nvme:
nvme: reorganize nvme_ns_head fields
nvme: change data type of lba_shift
nvme: remove a field from nvme_ns_head
nvme: remove unused parameter
