The DEVID register contains two pieces of information: the device ID in
the upper nibble, and the silicon revision number in the lower nibble.
The driver should work fine with any silicon revision, so let's mask
that out in the device ID check.
Fixes: 20e6d190ff ("net: pse-pd: Add TI TPS23881 PSE controller driver")
Signed-off-by: Kyle Swenson <kyle.swenson@est.tech>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20240731154152.4020668-1-kyle.swenson@est.tech
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Lorenzo Bianconi says:
====================
Add second QDMA support for EN7581 eth controller
EN7581 SoC supports two independent QDMA controllers to connect the
Ethernet Frame Engine (FE) to the CPU. Introduce support for the second
QDMA controller. This is a preliminary series to support multiple FE ports
(e.g. connected to a second PHY controller).
====================
Link: https://patch.msgid.link/cover.1722522582.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Map MMIO regions of both qdma controllers available on EN7581 SoC.
Run airoha_hw_cleanup routine for both QDMA controllers available on
EN7581 SoC removing airoha_eth module or in airoha_probe error path.
This is a preliminary patch to support multi-QDMA controllers.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/a734ae608da14b67ae749b375d880dbbc70868ea.1722522582.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move airoha_eth pointer in airoha_qdma structure from
airoha_tx_irq_queue/airoha_queue ones. This is a preliminary patch to
introduce support for multi-QDMA controllers available on EN7581.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/074565b82fd0ceefe66e186f21133d825dbd48eb.1722522582.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
syzbot reported a null-ptr-deref while accessing sk2->sk_reuseport_cb in
reuseport_add_sock(). [0]
The repro first creates a listener with SO_REUSEPORT. Then, it creates
another listener on the same port and concurrently closes the first
listener.
The second listen() calls reuseport_add_sock() with the first listener as
sk2, where sk2->sk_reuseport_cb is not expected to be cleared concurrently,
but the close() does clear it by reuseport_detach_sock().
The problem is SCTP does not properly synchronise reuseport_alloc(),
reuseport_add_sock(), and reuseport_detach_sock().
The caller of reuseport_alloc() and reuseport_{add,detach}_sock() must
provide synchronisation for sockets that are classified into the same
reuseport group.
Otherwise, such sockets form multiple identical reuseport groups, and
all groups except one would be silently dead.
1. Two sockets call listen() concurrently
2. No socket in the same group found in sctp_ep_hashtable[]
3. Two sockets call reuseport_alloc() and form two reuseport groups
4. Only one group hit first in __sctp_rcv_lookup_endpoint() receives
incoming packets
Also, the reported null-ptr-deref could occur.
TCP/UDP guarantees that would not happen by holding the hash bucket lock.
Let's apply the locking strategy to __sctp_hash_endpoint() and
__sctp_unhash_endpoint().
[0]:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 UID: 0 PID: 10230 Comm: syz-executor119 Not tainted 6.10.0-syzkaller-12585-g301927d2d2eb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:reuseport_add_sock+0x27e/0x5e0 net/core/sock_reuseport.c:350
Code: 00 0f b7 5d 00 bf 01 00 00 00 89 de e8 1b a4 ff f7 83 fb 01 0f 85 a3 01 00 00 e8 6d a0 ff f7 49 8d 7e 12 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 4b 02 00 00 41 0f b7 5e 12 49 8d 7e 14
RSP: 0018:ffffc9000b947c98 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff8880252ddf98 RCX: ffff888079478000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000012
RBP: 0000000000000001 R08: ffffffff8993e18d R09: 1ffffffff1fef385
R10: dffffc0000000000 R11: fffffbfff1fef386 R12: ffff8880252ddac0
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f24e45b96c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcced5f7b8 CR3: 00000000241be000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__sctp_hash_endpoint net/sctp/input.c:762 [inline]
sctp_hash_endpoint+0x52a/0x600 net/sctp/input.c:790
sctp_listen_start net/sctp/socket.c:8570 [inline]
sctp_inet_listen+0x767/0xa20 net/sctp/socket.c:8625
__sys_listen_socket net/socket.c:1883 [inline]
__sys_listen+0x1b7/0x230 net/socket.c:1894
__do_sys_listen net/socket.c:1902 [inline]
__se_sys_listen net/socket.c:1900 [inline]
__x64_sys_listen+0x5a/0x70 net/socket.c:1900
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24e46039b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f24e45b9228 EFLAGS: 00000246 ORIG_RAX: 0000000000000032
RAX: ffffffffffffffda RBX: 00007f24e468e428 RCX: 00007f24e46039b9
RDX: 00007f24e46039b9 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 00007f24e468e420 R08: 00007f24e45b96c0 R09: 00007f24e45b96c0
R10: 00007f24e45b96c0 R11: 0000000000000246 R12: 00007f24e468e42c
R13: 00007f24e465a5dc R14: 0020000000000001 R15: 00007ffcced5f7d8
</TASK>
Modules linked in:
Fixes: 6ba8457402 ("sctp: process sk_reuseport in sctp_get_port_local")
Reported-by: syzbot+e6979a5d2f10ecb700e4@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=e6979a5d2f10ecb700e4
Tested-by: syzbot+e6979a5d2f10ecb700e4@syzkaller.appspotmail.com
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://patch.msgid.link/20240731234624.94055-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Print more stack frames and the failing line when check fails.
This helps when tests use helpers to do the checks.
Before:
# At ./ksft/drivers/net/hw/rss_ctx.py line 92:
# Check failed 1037698 >= 396893.0 traffic on other queues:[344612, 462380, 233020, 449174, 342298]
not ok 8 rss_ctx.test_rss_context_queue_reconfigure
After:
# Check| At ./ksft/drivers/net/hw/rss_ctx.py, line 387, in test_rss_context_queue_reconfigure:
# Check| test_rss_queue_reconfigure(cfg, main_ctx=False)
# Check| At ./ksft/drivers/net/hw/rss_ctx.py, line 230, in test_rss_queue_reconfigure:
# Check| _send_traffic_check(cfg, port, ctx_ref, { 'target': (0, 3),
# Check| At ./ksft/drivers/net/hw/rss_ctx.py, line 92, in _send_traffic_check:
# Check| ksft_lt(sum(cnts[i] for i in params['noise']), directed / 2,
# Check failed 1045235 >= 405823.5 traffic on other queues (context 1)':[460068, 351995, 565970, 351579, 127270]
not ok 8 rss_ctx.test_rss_context_queue_reconfigure
Link: https://patch.msgid.link/20240801232317.545577-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Petr suggested to use errno.EOPNOTSUPP instead of hard-coded 95
in the new test case. Adjust existing ones to match this style.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20240802000309.2368-3-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add new @ksft_disruptive decorator to mark the tests that might
be disruptive to the system. Depending on how well the previous
test works in the CI we might want to disable disruptive tests
by default and only let the developers run them manually.
KSFT framework runs disruptive tests by default. DISRUPTIVE=False
environment (or config file) can be used to disable these tests.
ksft_setup should be called by the test cases that want to use
new decorator (ksft_setup is only called via NetDrvEnv/NetDrvEpEnv for now).
In the future we can add similar decorators to, for example, avoid
running slow tests all the time. And/or have some option to run
only 'fast' tests for some sort of smoke test scenario.
$ DISRUPTIVE=False ./stats.py
KTAP version 1
1..5
ok 1 stats.check_pause
ok 2 stats.check_fec
ok 3 stats.pkt_byte_sum
ok 4 stats.qstat_by_ifindex
ok 5 stats.check_down # SKIP marked as disruptive
# Totals: pass:4 fail:0 xfail:0 xpass:0 skip:1 error:0
v3:
- parse yes and properly treat non-zero nums as true (Petr)
v2:
- convert from cli argument to env variable (Jakub)
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20240802000309.2368-2-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Verify that total device stats don't decrease after it has been turned down.
Also make sure the device doesn't crash when we access per-queue stats
when it's down (in case it tries to access some pointers that are NULL).
KTAP version 1
1..5
ok 1 stats.check_pause
ok 2 stats.check_fec
ok 3 stats.pkt_byte_sum
ok 4 stats.qstat_by_ifindex
ok 5 stats.check_down
# Totals: pass:5 fail:0 xfail:0 xpass:0 skip:0 error:0
v3:
- use errno.EOPNOTSUPP (Petr)
- move qstat[0] under try (Petr)
v2:
- KTAP output formatting (Jakub)
- defer instead of try/finally (Jakub)
- disappearing stats is an error (Jakub)
- ksft_ge instead of open coding (Jakub)
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20240802000309.2368-1-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We re-define values of enum netdev_priv_flags as preprocessor
macros with the same name. I guess this was done to avoid breaking
out of tree modules which may use #ifdef X for kernel compatibility?
Commit 7aa98047df ("net: move net_device priv_flags out from UAPI")
which added the enum doesn't say. In any case, the flags with defines
are quite old now, and defines for new flags don't get added.
OOT drivers have to resort to code greps for compat detection, anyway.
Let's delete these defines, save LoC, help LXR link to the right place.
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://patch.msgid.link/20240801163401.378723-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The old SysKonnect NIc's are not used or actively maintained anymore.
My sky2 NIC's are all in box in back corner of attic.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Link: https://patch.msgid.link/20240801162930.212299-1-stephen@networkplumber.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:
Add initial support for the PantherLake platform, and initial ACPI
configurations.
Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:
pahole reports a number of sub-optimal structure definitions with
holes and cache-line alignment problems, this patchset optimizes a
couple of structure frequently used.
No functionality change, only re-ordering of structure members.
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Merge tag 'io_uring-6.11-20240802' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"Two minor tweaks for the NAPI handling, both from Olivier:
- Kill two unused list definitions
- Ensure that multishot NAPI doesn't age away"
* tag 'io_uring-6.11-20240802' of git://git.kernel.dk/linux:
io_uring: remove unused local list heads in NAPI functions
io_uring: keep multishot request NAPI timeout current
- Fix MSI error path cleanup in int340x, allow it to work with a subset
of thermal MSI IRQs if some of them are not working and make it free
all MSI IRQs on module exit (Srinivas Pandruvada).
- Fix a thermal core issue that may lead to missing trip point crossing
events in some cases when thermal_zone_set_trips() is used and update
the thermal core documentation (Rafael Wysocki).
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Merge tag 'thermal-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These fix a few issues related to the MSI IRQs management in the
int340x thermal driver, fix a thermal core issue that may lead to
missing trip point crossing events and update the thermal core
documentation.
Specifics:
- Fix MSI error path cleanup in int340x, allow it to work with a
subset of thermal MSI IRQs if some of them are not working and make
it free all MSI IRQs on module exit (Srinivas Pandruvada)
- Fix a thermal core issue that may lead to missing trip point
crossing events in some cases when thermal_zone_set_trips() is used
and update the thermal core documentation (Rafael Wysocki)"
* tag 'thermal-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Update thermal zone registration documentation
thermal: trip: Avoid skipping trips in thermal_zone_set_trips()
thermal: intel: int340x: Free MSI IRQ vectors on module exit
thermal: intel: int340x: Allow limited thermal MSI support
thermal: intel: int340x: Fix kernel warning during MSI cleanup
Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:
Provide empty versions of acpi_spi_count_resources(),
acpi_spi_device_alloc() and acpi_spi_find_controller_by_adev()
if the real functions are not being built.
This commit fixes two problems with the original definitions:
1) There wasn't an empty version of these functions
2) The #if only depended on CONFIG_ACPI. But the functions are implemented
in the core spi.c so CONFIG_SPI_MASTER must also be enabled for the real
functions to exist.
- Expand the speculative SSBS errata workaround to more CPUs
- Ensure jump label changes are visible to all CPUs with a
kick_all_cpus_sync() (and also enable jump label batching as part of
the fix)
- The shadow call stack sanitiser is currently incompatible with Rust,
make CONFIG_RUST conditional on !CONFIG_SHADOW_CALL_STACK
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Expand the speculative SSBS errata workaround to more CPUs
- Ensure jump label changes are visible to all CPUs with a
kick_all_cpus_sync() (and also enable jump label batching as part of
the fix)
- The shadow call stack sanitiser is currently incompatible with Rust,
make CONFIG_RUST conditional on !CONFIG_SHADOW_CALL_STACK
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: jump_label: Ensure patched jump_labels are visible to all CPUs
rust: SHADOW_CALL_STACK is incompatible with Rust
arm64: errata: Expand speculative SSBS workaround (again)
arm64: cputype: Add Cortex-A725 definitions
arm64: cputype: Add Cortex-X1C definitions
[BUG]
There is a bug report that using the latest trunk GCC 15, btrfs would cause
unterminated-string-initialization warning:
linux-6.6/fs/btrfs/print-tree.c:29:49: error: initializer-string for array of ‘char’ is too long [-Werror=unterminated-string-initialization]
29 | { BTRFS_BLOCK_GROUP_TREE_OBJECTID, "BLOCK_GROUP_TREE" },
|
^~~~~~~~~~~~~~~~~~
[CAUSE]
To print tree names we have an array of root_name_map structure, which
uses "char name[16];" to store the name string of a tree.
But the following trees have names exactly at 16 chars length:
- "BLOCK_GROUP_TREE"
- "RAID_STRIPE_TREE"
This means we will have no space for the terminating '\0', and can lead
to unexpected access when printing the name.
[FIX]
Instead of "char name[16];" use "const char *" instead.
Since the name strings are all read-only data, and are all NULL
terminated by default, there is not much need to bother the length at
all.
Reported-by: Sam James <sam@gentoo.org>
Reported-by: Alejandro Colomar <alx@kernel.org>
Fixes: edde81f1ab ("btrfs: add raid stripe tree pretty printer")
Fixes: 9c54e80ddc ("btrfs: add code to support the block group root")
CC: stable@vger.kernel.org # 6.1+
Suggested-by: Alejandro Colomar <alx@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
If we do a direct IO sync write, at btrfs_sync_file(), and we need to skip
inode logging or we get an error starting a transaction or an error when
flushing delalloc, we end up unlocking the inode when we shouldn't under
the 'out_release_extents' label, and then unlock it again at
btrfs_direct_write().
Fix that by checking if we have to skip inode unlocking under that label.
Reported-by: syzbot+7dbbb74af6291b5a5a8b@syzkaller.appspotmail.com
Link: https://lore.kernel.org/linux-btrfs/000000000000dfd631061eaeb4bc@google.com/
Fixes: 939b656bc8 ("btrfs: fix corruption after buffer fault in during direct IO append write")
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Commit b411b3637f ("The DRBD driver") declared but never implemented
drbd_read_remote(), is_valid_ar_handle() and drbd_set_recv_tcq().
And commit 668700b40a ("drbd: Create a dedicated workqueue for sending acks on the control connection")
never implemented drbd_send_ping_wf().
Commit 2451fc3b2b ("drbd: Removed the BIO_RW_BARRIER support form the receiver/epoch code")
leave w_e_reissue() declaration unused.
Commit 8fe605513a ("drbd: Rename drbdd_init() -> drbd_receiver()")
rename drbdd_init() and leave unsued declaration. Also drbd_asender() is removed in
commit 1c03e52083 ("drbd: Rename asender to ack_receiver").
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20240802095147.2788218-1-yuehaibing@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jakub reported bpf selftest "btf_dump" failure after forwarding to
v6.11-rc1 with netdev.
Error: #33 btf_dump
Error: #33/15 btf_dump/btf_dump: var_data
btf_dump_data:FAIL:find type id unexpected find type id: actual -2 < expected 0
The reason for the failure is due to
commit 94ede2a3e9 ("profiling: remove stale percpu flip buffer variables")
where percpu static variable "cpu_profile_flip" is removed.
Let us replace "cpu_profile_flip" with a variable in bpf subsystem
so whenever that variable gets deleted or renamed, we can detect the
failure immediately. In this case, I picked a static percpu variable
"bpf_cgrp_storage_busy" which is defined in kernel/bpf/bpf_cgrp_storage.c.
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240802185434.1749056-1-yonghong.song@linux.dev
From 1232da7eced620537a78f19c8cf3d4a3508e2419 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 31 Jul 2024 09:14:52 -1000
p->scx.disallow provides a way for the BPF scheduler to reject certain tasks
from attaching. It's currently allowed for both the load and fork paths;
however, the latter doesn't actually work as p->sched_class is already set
by the time scx_ops_init_task() is called during fork.
This is a convenience feature which is mostly useful from the load path
anyway. Allow it only from the load path.
v2: Trigger scx_ops_error() iff @p->policy == SCHED_EXT to make it a bit
easier for the BPF scheduler (David).
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: "Zhangqiao (2012 lab)" <zhangqiao22@huawei.com>
Link: http://lkml.kernel.org/r/20240711110720.1285-1-zhangqiao22@huawei.com
Fixes: 7bb6f0810e ("sched_ext: Allow BPF schedulers to disallow specific tasks from joining SCHED_EXT")
Acked-by: David Vernet <void@manifault.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fix the compilation errors and warnings caused by merging
Documentation/core-api/union_find.rst and
Documentation/translations/zh_CN/core-api/union_find.rst.
Signed-off-by: Xavier <xavier_qy@163.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Get rid of unexpected unlock sparse warnings in vgic code
by adding an annotation to vgic_queue_irq_unlock().
arch/arm64/kvm/vgic/vgic.c:334:17: warning: context imbalance in 'vgic_queue_irq_unlock' - unexpected unlock
arch/arm64/kvm/vgic/vgic.c:419:5: warning: context imbalance in 'kvm_vgic_inject_irq' - different lock contexts for basic block
Signed-off-by: Sebastian Ott <sebott@redhat.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240723101204.7356-4-sebott@redhat.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Fix kdoc warnings by adding missing function parameter
descriptions or by conversion to a normal comment.
Signed-off-by: Sebastian Ott <sebott@redhat.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240723101204.7356-3-sebott@redhat.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Add -Wno-override-init to the build flags for sys_regs.c,
handle_exit.c, and switch.c to fix warnings like the following:
arch/arm64/kvm/hyp/vhe/switch.c:271:43: warning: initialized field overwritten [-Woverride-init]
271 | [ESR_ELx_EC_CP15_32] = kvm_hyp_handle_cp15_32,
|
Signed-off-by: Sebastian Ott <sebott@redhat.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240723101204.7356-2-sebott@redhat.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
kvm->arch.nested_mmus is allocated with kvrealloc(), hence free it with
kvfree() instead of kfree().
Fixes: 4f128f8e1a ("KVM: arm64: nv: Support multiple nested Stage-2 mmu structures")
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240723142204.758796-1-dakr@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
In order to constify `snd_soc_component_driver` struct, duplicate
`soc_component_dev_cs43130` into a `soc_component_dev_cs43130_digital` and
`soc_component_dev_cs43130_analog`.
These 2 new structures share the same .dapm_widgets and .dapm_routes
arrays but differ for .num_dapm_widgets and .num_dapm_routes.
In the digital case, the last entries are not taken into account.
Doing so has several advantages:
- `snd_soc_component_driver` can be declared as const to move their
declarations to read-only sections.
- code in the probe is simpler. There is no need to concatenate some
arrays to handle the "analog" case
- this saves some memory because all_hp_widgets and analog_hp_routes can
be removed.
Before :
======
text data bss dec hex filename
53965 8265 4512 66742 104b6 sound/soc/codecs/cs43130.o
After :
=====
text data bss dec hex filename
54409 7881 64 62354 f392 sound/soc/codecs/cs43130.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/1f04bb0366d9640d7ee361dae114ff79e4b381c1.1722274212.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently, the coredump_task_exit() function sets the task state
to TASK_UNINTERRUPTIBLE|TASK_FREEZABLE, which usually works well.
But a combination of large memory and slow (and/or highly contended)
mass storage can cause application core dumps to take more than
two minutes, which can cause check_hung_task(), which is invoked by
check_hung_uninterruptible_tasks(), to produce task-blocked splats.
There does not seem to be any reasonable benefit to getting these splats.
Furthermore, as Oleg Nesterov points out, TASK_UNINTERRUPTIBLE could
be misleading because the task sleeping in coredump_task_exit() really
is killable, albeit indirectly. See the check of signal->core_state
in prepare_signal() and the check of fatal_signal_pending()
in dump_interrupted(), which bypass the normal unkillability of
TASK_UNINTERRUPTIBLE, resulting in coredump_finish() invoking
wake_up_process() on any threads sleeping in coredump_task_exit().
Therefore, change that TASK_UNINTERRUPTIBLE to TASK_IDLE.
Reported-by: Anhad Jai Singh <ffledgling@meta.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Chris Mason <clm@fb.com>
Cc: Rik van Riel <riel@surriel.com>
Provide empty versions of acpi_spi_count_resources(),
acpi_spi_device_alloc() and acpi_spi_find_controller_by_adev()
if the real functions are not being built.
This commit fixes two problems with the original definitions:
1) There wasn't an empty version of these functions
2) The #if only depended on CONFIG_ACPI. But the functions are implemented
in the core spi.c so CONFIG_SPI_MASTER must also be enabled for the real
functions to exist.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20240802152215.20831-2-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
the client releasing the caps in question, marked for stable.
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Merge tag 'ceph-for-6.11-rc2' of https://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
"A fix for a potential hang in the MDS when cap revocation races with
the client releasing the caps in question, marked for stable"
* tag 'ceph-for-6.11-rc2' of https://github.com/ceph/ceph-client:
ceph: force sending a cap update msg back to MDS for revoke op
confidential VMs
* fix "underline too short" in docs
* eliminate log spam from limited APIC timer periods
* disallow pre-faulting of memory before SEV-SNP VMs are initialized
* delay clearing and encrypting private memory until it is added to
guest page tables
* this change also enables another small cleanup: the checks in
SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
can now be moved in the common kvm_gmem_populate() function
* fix compilation error that the RISC-V merge introduced in selftests
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"The bulk of the changes here is a largish change to guest_memfd,
delaying the clearing and encryption of guest-private pages until they
are actually added to guest page tables. This started as "let's make
it impossible to misuse the API" for SEV-SNP; but then it ballooned a
bit.
The new logic is generally simpler and more ready for hugepage support
in guest_memfd.
Summary:
- fix latent bug in how usage of large pages is determined for
confidential VMs
- fix "underline too short" in docs
- eliminate log spam from limited APIC timer periods
- disallow pre-faulting of memory before SEV-SNP VMs are initialized
- delay clearing and encrypting private memory until it is added to
guest page tables
- this change also enables another small cleanup: the checks in
SNP_LAUNCH_UPDATE that limit it to non-populated, private pages can
now be moved in the common kvm_gmem_populate() function
- fix compilation error that the RISC-V merge introduced in selftests"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86/mmu: fix determination of max NPT mapping level for private pages
KVM: riscv: selftests: Fix compile error
KVM: guest_memfd: abstract how prepared folios are recorded
KVM: guest_memfd: let kvm_gmem_populate() operate only on private gfns
KVM: extend kvm_range_has_memory_attributes() to check subset of attributes
KVM: cleanup and add shortcuts to kvm_range_has_memory_attributes()
KVM: guest_memfd: move check for already-populated page to common code
KVM: remove kvm_arch_gmem_prepare_needed()
KVM: guest_memfd: make kvm_gmem_prepare_folio() operate on a single struct kvm
KVM: guest_memfd: delay kvm_gmem_prepare_folio() until the memory is passed to the guest
KVM: guest_memfd: return locked folio from __kvm_gmem_get_pfn
KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_*
KVM: guest_memfd: do not go through struct page
KVM: guest_memfd: delay folio_mark_uptodate() until after successful preparation
KVM: guest_memfd: return folio from __kvm_gmem_get_pfn()
KVM: x86: disallow pre-fault for SNP VMs before initialization
KVM: Documentation: Fix title underline too short warning
KVM: x86: Eliminate log spam from limited APIC timer periods
Remove the hpc_ops struct from shpchp. This struct is unnecessary and no
other hotplug controller implements it. A similar thing has already been
done in pciehp with 82a9e79ef1 ("PCI: pciehp: remove hpc_ops").
Link: https://lore.kernel.org/r/Zp-XXVW4hlcMASEc@archbtw
Signed-off-by: ngn <ngn@ngn.tf>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The unsynchronized_tsc() eventually checks num_possible_cpus(), and if the
system is non-Intel and the number of possible CPUs is greater than one,
assumes that TSCs are unsynchronized. This despite the comment saying
"assume multi socket systems are not synchronized", that is, socket rather
than CPU. This behavior was preserved by commit 8fbbc4b45c ("x86: merge
tsc_init and clocksource code") and by the previous relevant commit
7e69f2b1ea ("clocksource: Remove the update callback").
The clocksource drivers were added by commit 5d0cf410e9 ("Time: i386
Clocksource Drivers") back in 2006, and the comment still said "socket"
rather than "CPU".
Therefore, bravely (and perhaps foolishly) make the code match the
comment.
Note that it is possible to bypass both code and comment by booting
with tsc=reliable, but this also disables the clocksource watchdog,
which is undesirable when trust in the TSC is strictly limited.
Reported-by: Zhengxu Chen <zhxchen17@meta.com>
Reported-by: Danielle Costantino <dcostantino@meta.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240802154618.4149953-5-paulmck@kernel.org
Right now, cs_watchdog_read() does clocksource sanity checks based
on WATCHDOG_MAX_SKEW, which sets a floor on any clocksource's
.uncertainty_margin. These sanity checks can therefore act
inappropriately for clocksources with large uncertainty margins.
One reason for a clocksource to have a large .uncertainty_margin is when
that clocksource has long read-out latency, given that it does not make
sense for the .uncertainty_margin to be smaller than the read-out latency.
With the current checks, cs_watchdog_read() could reject all normal
reads from a clocksource with long read-out latencies, such as those
from legacy clocksources that are no longer implemented in hardware.
Therefore, recast the cs_watchdog_read() checks in terms of the
.uncertainty_margin values of the clocksources involved in the timespan in
question. The first covers two watchdog reads and one cs read, so use
twice the watchdog .uncertainty_margin plus that of the cs. The second
covers only a pair of watchdog reads, so use twice the watchdog
.uncertainty_margin.
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240802154618.4149953-4-paulmck@kernel.org
The WATCHDOG_THRESHOLD macro is no longer used to supply a default value
for ->uncertainty_margin, but WATCHDOG_MAX_SKEW now is.
Therefore, update the comments to reflect this change.
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/all/20240802154618.4149953-3-paulmck@kernel.org
Add more detail on the rationale for bounding the clocksource
->uncertainty_margin below at about 500ppm.
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240802154618.4149953-1-paulmck@kernel.org
confidential VMs
* fix "underline too short" in docs
* eliminate log spam from limited APIC timer periods
* disallow pre-faulting of memory before SEV-SNP VMs are initialized
* delay clearing and encrypting private memory until it is added to
guest page tables
* this change also enables another small cleanup: the checks in
SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
can now be moved in the common kvm_gmem_populate() function
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Merge branch 'kvm-fixes' into HEAD
* fix latent bug in how usage of large pages is determined for
confidential VMs
* fix "underline too short" in docs
* eliminate log spam from limited APIC timer periods
* disallow pre-faulting of memory before SEV-SNP VMs are initialized
* delay clearing and encrypting private memory until it is added to
guest page tables
* this change also enables another small cleanup: the checks in
SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
can now be moved in the common kvm_gmem_populate() function
* A fix to avoid dropping some of the internal pseudo-extensions, which
breaks *envcfg dependency parsing.
* The kernel entry address is now aligned in purgatory, which avoids a
misaligned load that can lead to crash on systems that don't support
misaligned accesses early in boot.
* The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of
perf JSON configurations, one of them been updated to
FW_SFENCE_VMA_ASID_SENT.
* The starfive cache driver is now restricted to 64-bit systems, as it
isn't 32-bit clean.
* A fix for to avoid aliasing legacy-mode perf counters with software
perf counters.
* VM_FAULT_SIGSEGV is now handled in the page fault code.
* A fix for stalls during CPU hotplug due to IPIs being disabled.
* A fix for memblock bounds checking. This manifests as a crash on
systems with discontinuous memory maps that have regions that don't
fit in the linear map.
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Merge tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix to avoid dropping some of the internal pseudo-extensions, which
breaks *envcfg dependency parsing
- The kernel entry address is now aligned in purgatory, which avoids a
misaligned load that can lead to crash on systems that don't support
misaligned accesses early in boot
- The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of
perf JSON configurations, one of them been updated to
FW_SFENCE_VMA_ASID_SENT
- The starfive cache driver is now restricted to 64-bit systems, as it
isn't 32-bit clean
- A fix for to avoid aliasing legacy-mode perf counters with software
perf counters
- VM_FAULT_SIGSEGV is now handled in the page fault code
- A fix for stalls during CPU hotplug due to IPIs being disabled
- A fix for memblock bounds checking. This manifests as a crash on
systems with discontinuous memory maps that have regions that don't
fit in the linear map
* tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix linear mapping checks for non-contiguous memory regions
RISC-V: Enable the IPI before workqueue_online_cpu()
riscv/mm: Add handling for VM_FAULT_SIGSEGV in mm_fault_error()
perf: riscv: Fix selecting counters in legacy mode
cache: StarFive: Require a 64-bit system
perf arch events: Fix duplicate RISC-V SBI firmware event name
riscv/purgatory: align riscv_kernel_entry
riscv: cpufeature: Do not drop Linux-internal extensions
- Remove unused empty CPU alternatives header file
- Fix recently and erroneously removed exception handling when loading
an invalid floating point register
- Couple of ptdump fixes to reflect the recent changes due to the
uncoupling of physical vs virtual kernel address spaces
- Couple of changes to avoid the unnecessary splitting of large pages
in kernel mappings
- Add the missing MODULE_DESCRIPTION for the CIO modules
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Merge tag 's390-6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- remove unused empty CPU alternatives header file
- fix recently and erroneously removed exception handling when loading
an invalid floating point register
- ptdump fixes to reflect the recent changes due to the uncoupling of
physical vs virtual kernel address spaces
- changes to avoid the unnecessary splitting of large pages in kernel
mappings
- add the missing MODULE_DESCRIPTION for the CIO modules
* tag 's390-6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: Keep inittext section writable
s390/vmlinux.lds.S: Move ro_after_init section behind rodata section
s390/mm: Get rid of RELOC_HIDE()
s390/mm/ptdump: Improve sorting of markers
s390/mm/ptdump: Add support for relocated lowcore mapping
s390/mm/ptdump: Fix handling of identity mapping area
s390/cio: Add missing MODULE_DESCRIPTION() macros
s390/alternatives: Remove unused empty header file
s390/fpu: Re-add exception handling in load_fpu_state()
