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Author SHA1 Message Date
Dmitry Safonov
79504a4733 selftests/net: Clean-up double assignment
Correct copy'n'paste typo: the previous line already initialises get_all
to 1.

Reported-by: Nassiri, Mohammad <mnassiri@ciena.com>
Closes: https://lore.kernel.org/all/DM6PR04MB4202BC58A9FD5BDD24A16E8EC56F2@DM6PR04MB4202.namprd04.prod.outlook.com/
Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://patch.msgid.link/20240823-tcp-ao-selftests-upd-6-12-v4-1-05623636fe8c@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 14:11:26 -07:00
Rodrigo Vivi
04cf420bbc
Merge drm/drm-next into drm-intel-next
Need to take some Xe bo definition in here before
we can add the BMG display 64k aligned size restrictions.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2024-08-27 17:06:28 -04:00
Miguel Ojeda
8e95e53ca3 rust: allow stable_features lint
Support for several Rust compiler versions started in commit 63b27f4a00
("rust: start supporting several compiler versions"). Since we currently
need to use a number of unstable features in the kernel, it is a matter
of time until one gets stabilized and the `stable_features` lint warns.

For instance, the `new_uninit` feature may become stable soon, which
would give us multiple warnings like the following:

    warning: the feature `new_uninit` has been stable since 1.82.0-dev
    and no longer requires an attribute to enable
      --> rust/kernel/lib.rs:17:12
       |
    17 | #![feature(new_uninit)]
       |            ^^^^^^^^^^
       |
       = note: `#[warn(stable_features)]` on by default

Thus allow the `stable_features` lint to avoid such warnings. This is
the simplest approach -- we do not have that many cases (and the goal
is to stop using unstable features anyway) and cleanups can be easily
done when we decide to update the minimum version.

An alternative would be to conditionally enable them based on the
compiler version (with the upcoming `RUSTC_VERSION` or maybe with the
unstable `cfg(version(...))`, but that one apparently will not work for
the nightly case). However, doing so is more complex and may not work
well for different nightlies of the same version, unless we do not care
about older nightlies.

Another alternative is using explicit tests of the feature calling
`rustc`, but that is also more complex and slower.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240827100403.376389-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-08-27 22:50:09 +02:00
Jon Mulder
7d2fc5a403 docs: rust: remove unintended blockquote in Quick Start
Remove indentation within the "Hacking" section of the Rust Quick Start
guide, i.e. remove a `<blockquote>` HTML element from the rendered
documentation.

Reported-by: Miguel Ojeda <ojeda@kernel.org>
Closes: https://github.com/Rust-for-Linux/linux/issues/1103
Fixes: d07479b211 ("docs: add Rust documentation")
Signed-off-by: Jon Mulder <jon.e.mulder@gmail.com>
Link: https://lore.kernel.org/r/20240826-pr-docs-rust-remove-quickstart-blockquote-v1-1-c51317d8d71a@gmail.com
[ Added Fixes tag, reworded slightly and matched title to a previous,
  similar commit. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-08-27 22:44:29 +02:00
James Chapman
73d33bd063 l2tp: avoid using drain_workqueue in l2tp_pre_exit_net
Recent commit fc7ec7f554 ("l2tp: delete sessions using work queue")
incorrectly uses drain_workqueue. The use of drain_workqueue in
l2tp_pre_exit_net is flawed because the workqueue is shared by all
nets and it is therefore possible for new work items to be queued
for other nets while drain_workqueue runs.

Instead of using drain_workqueue, use __flush_workqueue twice. The
first one will run all tunnel delete work items and any work already
queued. When tunnel delete work items are run, they may queue
new session delete work items, which the second __flush_workqueue will
run.

In l2tp_exit_net, warn if any of the net's idr lists are not empty.

Fixes: fc7ec7f554 ("l2tp: delete sessions using work queue")
Signed-off-by: James Chapman <jchapman@katalix.com>
Link: https://patch.msgid.link/20240823142257.692667-1-jchapman@katalix.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:37:22 -07:00
Jakub Kicinski
aed7136a37 Merge branch 'add-gmac-support-for-rk3576'
Detlev Casanova says:

====================
Add GMAC support for rk3576

Add the necessary constants and functions to support the GMAC devices on
the rk3576.
====================

Link: https://patch.msgid.link/20240823141318.51201-1-detlev.casanova@collabora.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:29:20 -07:00
David Wu
f9cc9997cb ethernet: stmmac: dwmac-rk: Add GMAC support for RK3576
Add constants and callback functions for the dwmac on RK3576 soc.

Signed-off-by: David Wu <david.wu@rock-chips.com>
[rebase, extracted bindings]
Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20240823141318.51201-4-detlev.casanova@collabora.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:29:15 -07:00
Detlev Casanova
299e2aefb1 dt-bindings: net: Add support for rk3576 dwmac
Add a rockchip,rk3576-gmac compatible for supporting the 2 gmac
devices on the rk3576.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20240823141318.51201-3-detlev.casanova@collabora.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:29:15 -07:00
Detlev Casanova
78a60497a0 ethernet: stmmac: dwmac-rk: Fix typo for RK3588 code
Fix SELET -> SELECT in RK3588_GMAC_CLK_SELET_CRU and
RK3588_GMAC_CLK_SELET_IO

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20240823141318.51201-2-detlev.casanova@collabora.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:29:15 -07:00
Tejun Heo
59cfdf3f33 scx_central: Fix smatch checker warning
ARRAY_ELEM_PTR() is an access macro used to help the BPF verifier not
confused by offseted memory acceeses by yiedling a valid pointer or NULL in
a way that's clear to the verifier. As such, the canonical usage involves
checking NULL return from the macro. Note that in many cases, the NULL
condition can never happen - they're there just to hint the verifier.

In a bpf_loop in scx_central.bpf.c::central_dispatch(), the NULL check was
incorrect in that there was another dereference of the pointer in addition
to the NULL checked access. This worked as the pointer can never be NULL and
the verifier could tell it would never be NULL in this case.

However, this still looks wrong and trips smatch:

  ./tools/sched_ext/scx_central.bpf.c:205 ____central_dispatch()
  error: we previously assumed 'gimme' could be null (see line 201)

  ./tools/sched_ext/scx_central.bpf.c
      195
      196                         if (!scx_bpf_dispatch_nr_slots())
      197                                 break;
      198
      199                         /* central's gimme is never set */
      200                         gimme = ARRAY_ELEM_PTR(cpu_gimme_task, cpu, nr_cpu_ids);
      201                         if (gimme && !*gimme)
				      ^^^^^
  If gimme is NULL

      202                                 continue;
      203
      204                         if (dispatch_to_cpu(cpu))
  --> 205                                 *gimme = false;

Fix the NULL check so that there are no derefs if NULL. This doesn't change
actual behavior.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: http://lkml.kernel.org/r/<955e1c3c-ace2-4a1d-b246-15b8196038a3@stanley.mountain>
2024-08-27 10:21:34 -10:00
Jakub Kicinski
2fecbf75c4 Merge branch 'fixes-for-ipsec-over-bonding'
Jianbo Liu says:

====================
Fixes for IPsec over bonding

This patchset provides bug fixes for IPsec over bonding driver.

It adds the missing xdo_dev_state_free API, and fixes "scheduling while
atomic" by using mutex lock instead.

Series generated against:
commit c07ff8592d ("netem: fix return value if duplicate enqueue fails")
====================

Link: https://patch.msgid.link/20240823031056.110999-1-jianbol@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:11:39 -07:00
Jianbo Liu
2aeeef906d bonding: change ipsec_lock from spin lock to mutex
In the cited commit, bond->ipsec_lock is added to protect ipsec_list,
hence xdo_dev_state_add and xdo_dev_state_delete are called inside
this lock. As ipsec_lock is a spin lock and such xfrmdev ops may sleep,
"scheduling while atomic" will be triggered when changing bond's
active slave.

[  101.055189] BUG: scheduling while atomic: bash/902/0x00000200
[  101.055726] Modules linked in:
[  101.058211] CPU: 3 PID: 902 Comm: bash Not tainted 6.9.0-rc4+ #1
[  101.058760] Hardware name:
[  101.059434] Call Trace:
[  101.059436]  <TASK>
[  101.060873]  dump_stack_lvl+0x51/0x60
[  101.061275]  __schedule_bug+0x4e/0x60
[  101.061682]  __schedule+0x612/0x7c0
[  101.062078]  ? __mod_timer+0x25c/0x370
[  101.062486]  schedule+0x25/0xd0
[  101.062845]  schedule_timeout+0x77/0xf0
[  101.063265]  ? asm_common_interrupt+0x22/0x40
[  101.063724]  ? __bpf_trace_itimer_state+0x10/0x10
[  101.064215]  __wait_for_common+0x87/0x190
[  101.064648]  ? usleep_range_state+0x90/0x90
[  101.065091]  cmd_exec+0x437/0xb20 [mlx5_core]
[  101.065569]  mlx5_cmd_do+0x1e/0x40 [mlx5_core]
[  101.066051]  mlx5_cmd_exec+0x18/0x30 [mlx5_core]
[  101.066552]  mlx5_crypto_create_dek_key+0xea/0x120 [mlx5_core]
[  101.067163]  ? bonding_sysfs_store_option+0x4d/0x80 [bonding]
[  101.067738]  ? kmalloc_trace+0x4d/0x350
[  101.068156]  mlx5_ipsec_create_sa_ctx+0x33/0x100 [mlx5_core]
[  101.068747]  mlx5e_xfrm_add_state+0x47b/0xaa0 [mlx5_core]
[  101.069312]  bond_change_active_slave+0x392/0x900 [bonding]
[  101.069868]  bond_option_active_slave_set+0x1c2/0x240 [bonding]
[  101.070454]  __bond_opt_set+0xa6/0x430 [bonding]
[  101.070935]  __bond_opt_set_notify+0x2f/0x90 [bonding]
[  101.071453]  bond_opt_tryset_rtnl+0x72/0xb0 [bonding]
[  101.071965]  bonding_sysfs_store_option+0x4d/0x80 [bonding]
[  101.072567]  kernfs_fop_write_iter+0x10c/0x1a0
[  101.073033]  vfs_write+0x2d8/0x400
[  101.073416]  ? alloc_fd+0x48/0x180
[  101.073798]  ksys_write+0x5f/0xe0
[  101.074175]  do_syscall_64+0x52/0x110
[  101.074576]  entry_SYSCALL_64_after_hwframe+0x4b/0x53

As bond_ipsec_add_sa_all and bond_ipsec_del_sa_all are only called
from bond_change_active_slave, which requires holding the RTNL lock.
And bond_ipsec_add_sa and bond_ipsec_del_sa are xfrm state
xdo_dev_state_add and xdo_dev_state_delete APIs, which are in user
context. So ipsec_lock doesn't have to be spin lock, change it to
mutex, and thus the above issue can be resolved.

Fixes: 9a5605505d ("bonding: Add struct bond_ipesc to manage SA")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Link: https://patch.msgid.link/20240823031056.110999-4-jianbol@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:11:37 -07:00
Jianbo Liu
907ed83a75 bonding: extract the use of real_device into local variable
Add a local variable for slave->dev, to prepare for the lock change in
the next patch. There is no functionality change.

Fixes: 9a5605505d ("bonding: Add struct bond_ipesc to manage SA")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Link: https://patch.msgid.link/20240823031056.110999-3-jianbol@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:11:37 -07:00
Jianbo Liu
ec13009472 bonding: implement xdo_dev_state_free and call it after deletion
Add this implementation for bonding, so hardware resources can be
freed from the active slave after xfrm state is deleted. The netdev
used to invoke xdo_dev_state_free callback, is saved in the xfrm state
(xs->xso.real_dev), which is also the bond's active slave. To prevent
it from being freed, acquire netdev reference before leaving RCU
read-side critical section, and release it after callback is done.

And call it when deleting all SAs from old active real interface while
switching current active slave.

Fixes: 9a5605505d ("bonding: Add struct bond_ipesc to manage SA")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Link: https://patch.msgid.link/20240823031056.110999-2-jianbol@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 13:11:37 -07:00
Andy Shevchenko
3333df3b4b net: ethernet: ti: am65-cpsw-nuss: Replace of_node_to_fwnode() with more suitable API
of_node_to_fwnode() is a IRQ domain specific implementation of
of_fwnode_handle(). Replace the former with more suitable API.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240822230550.708112-1-andy.shevchenko@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 12:56:29 -07:00
Petr Machata
65a3cce43d selftests: forwarding: local_termination: Down ports on cleanup
This test neglects to put ports down on cleanup. Fix it.

Fixes: 90b9566aa5 ("selftests: forwarding: add a test for local_termination.sh")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/bf9b79f45de378f88344d44550f0a5052b386199.1724692132.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 12:53:29 -07:00
Petr Machata
e8497d6951 selftests: forwarding: no_forwarding: Down ports on cleanup
This test neglects to put ports down on cleanup. Fix it.

Fixes: 476a4f05d9 ("selftests: forwarding: add a no_forwarding.sh test")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/0baf91dc24b95ae0cadfdf5db05b74888e6a228a.1724430120.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 12:53:29 -07:00
Diogo Jahchan Koike
3d6a0c4f45 net: fix unreleased lock in cable test
fix an unreleased lock in out_dev_put path by removing the (now)
unnecessary path.

Reported-by: syzbot+c641161e97237326ea74@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=c641161e97237326ea74
Fixes: 3688ff3077 ("net: ethtool: cable-test: Target the command to the requested PHY")
Signed-off-by: Diogo Jahchan Koike <djahchankoike@gmail.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20240826134656.94892-1-djahchankoike@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-27 12:47:38 -07:00
Yu Kuai
59fdd43304 md/md-bitmap: make in memory structure internal
Now that struct bitmap_page and bitmap is not used externally anymore,
move them from md-bitmap.h to md-bitmap.c (expect that dm-raid is still
using define marco 'COUNTER_MAX').

Also fix some checkpatch warnings.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-43-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:16 -07:00
Yu Kuai
dab2ce5534 md/md-bitmap: merge md_bitmap_enabled() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-42-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:16 -07:00
Yu Kuai
49f5f5e309 md/md-bitmap: merge md_bitmap_wait_behind_writes() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-41-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:16 -07:00
Yu Kuai
c65c20dc50 md/md-bitmap: merge md_bitmap_free() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
o invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-40-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:15 -07:00
Yu Kuai
ef1c400faf md/md-bitmap: merge md_bitmap_set_pages() into struct bitmap_operations
o that the implementation won't be exposed, and it'll be possible
o invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-39-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:15 -07:00
Yu Kuai
3dd9141a15 md/md-bitmap: merge md_bitmap_copy_from_slot() into struct bitmap_operation.
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-38-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:15 -07:00
Yu Kuai
57d602414d md/md-bitmap: merge get_bitmap_from_slot() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-37-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:15 -07:00
Yu Kuai
77c09640ee md/md-bitmap: merge md_bitmap_resize() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-36-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:15 -07:00
Yu Kuai
e1791dae6c md/md-bitmap: pass in mddev directly for md_bitmap_resize()
And move the condition "if (mddev->bitmap)" into md_bitmap_resize() as
well, on the one hand make code cleaner, on the other hand try not to
access bitmap directly.

Since we are here, also change the parameter 'init' from int to bool.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-35-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:15 -07:00
Yu Kuai
18db2a9c60 md/md-bitmap: merge md_bitmap_daemon_work() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-34-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:14 -07:00
Yu Kuai
3c9883e77a md/md-bitmap: merge bitmap_unplug() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-33-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:14 -07:00
Yu Kuai
48eb95810a md/md-bitmap: merge md_bitmap_unplug_async() into md_bitmap_unplug()
Add a parameter 'bool sync' to distinguish them, and
md_bitmap_unplug_async() won't be exported anymore, hence
bitmap_operations only need one op to cover them.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-32-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:14 -07:00
Yu Kuai
4338b94271 md/md-bitmap: merge md_bitmap_sync_with_cluster() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-31-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:43:14 -07:00
Yu Kuai
15db1eca63 md/md-bitmap: merge md_bitmap_cond_end_sync() into bitmap_operations
So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Also change the parameter from bitmap to mddev, to avoid access
bitmap outside md-bitmap.c as much as possible.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-30-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
2024-08-27 12:42:42 -07:00
Thomas Zimmermann
014125c64d drm/xe: Support 'nomodeset' kernel command-line option
Setting 'nomodeset' on the kernel command line disables all graphics
drivers with modesetting capabilities, leaving only firmware drivers,
such as simpledrm or efifb.

Most DRM drivers automatically support 'nomodeset' via DRM's module
helper macros. In xe, which uses regular module_init(), manually call
drm_firmware_drivers_only() to test for 'nomodeset'. Do not register
the driver if set.

v2:
- use xe's init table (Lucas)
- do NULL test for init/exit functions

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240827121003.97429-1-tzimmermann@suse.de
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-08-27 12:35:19 -07:00
Stephan Gerhold
01cc7b2e8a Revert "drm/panel-edp: Add SDC ATNA45AF01"
This reverts commit 8ebb1fc2e6.

The panel should be handled through the samsung-atna33xc20 driver for
correct power up timings. Otherwise the backlight does not work correctly.

We have existing users of this panel through the generic "edp-panel"
compatible (e.g. the Qualcomm X1E80100 CRD), but the screen works only
partially in that configuration: It works after boot but once the screen
gets disabled it does not turn on again until after reboot. It behaves the
same way with the default "conservative" timings, so we might as well drop
the configuration from the panel-edp driver. That way, users with old DTBs
will get a warning and can move to the new driver.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240715-x1e80100-crd-backlight-v2-2-31b7f2f658a3@linaro.org
2024-08-27 12:27:12 -07:00
Peng Fan
fc953d40bd clk: scmi: add is_prepared hook
Some clocks maybe default enabled by hardware. For clocks that don't
have users, that will be left in hardware default state, because prepare
count and enable count is zero,if there is no is_prepared hook to get
the hardware state. So add is_prepared hook to detect the hardware
state. Then when disabling the unused clocks, they can be simply
turned OFF to save power during kernel boot.

Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20240806145601.1184337-1-peng.fan@oss.nxp.com
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-08-27 12:11:45 -07:00
Georg Gottleuber
61aa894e7a nvme-pci: Add sleep quirk for Samsung 990 Evo
On some TUXEDO platforms, a Samsung 990 Evo NVMe leads to a high
power consumption in s2idle sleep (2-3 watts).

This patch applies 'Force No Simple Suspend' quirk to achieve a
sleep with a lower power consumption, typically around 0.5 watts.

Signed-off-by: Georg Gottleuber <ggo@tuxedocomputers.com>
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2024-08-27 12:06:43 -07:00
Rafael J. Wysocki
15d75184a8 amd-pstate fixes for 6.11-rc
- Fix to unit test coverage
 - Fix bug with enabling CPPC on hetero designs
 - Fix uninitialized variable
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Merge tag 'amd-pstate-v6.11-2024-08-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux

Merge amd-pstate driver fixes for 6.11-rc6 from Mario Limonciello:

"amd-pstate fixes for 6.11-rc
 - Fix to unit test coverage
 - Fix bug with enabling CPPC on hetero designs
 - Fix uninitialized variable"

* tag 'amd-pstate-v6.11-2024-08-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux:
  cpufreq/amd-pstate-ut: Don't check for highest perf matching on prefcore
  cpufreq/amd-pstate: Use topology_logical_package_id() instead of logical_die_id()
  cpufreq: amd-pstate: Fix uninitialized variable in amd_pstate_cpu_boost_update()
2024-08-27 20:40:10 +02:00
Daniel Borkmann
d966087948 netkit: Disable netpoll support
Follow-up to 45160cebd6 ("net: veth: Disable netpoll support") to
also disable netpoll for netkit interfaces. Same conditions apply
here as well.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Breno Leitao <leitao@debian.org>
Cc: Nikolay Aleksandrov <razor@blackwall.org>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/eab2d69ba2f4c260aef62e4ff0d803e9f60c2c5d.1724414250.git.daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2024-08-27 11:37:45 -07:00
Linus Torvalds
3ec3f5fc4a Livepatching selftest fixup for 6.11-rc6
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Merge tag 'livepatching-for-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching

Pull livepatching fix from Petr Mladek:
 "Selftest regression fix"

* tag 'livepatching-for-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  selftests/livepatch: wait for atomic replace to occur
2024-08-28 06:34:08 +12:00
Linus Torvalds
41594663c3 Pin control fixes for the v6.11 series:
- Fix the hwirq map and pin offsets in the Qualcomm X1E80100 driver.
 
 - Fix the pin range handling in the AT91 driver so it works again.
 
 - Fix a NULL-dereference risk in pinctrl single.
 
 - Fix a serious biasing bug in the Mediatek driver.
 
 - Fix the level trigged IRQ in the StarFive JH7110.
 
 - Fix the iomux width in the Rockchip GPIO2-B pin handling.
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Merge tag 'pinctrl-v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:

 - Fix the hwirq map and pin offsets in the Qualcomm X1E80100 driver

 - Fix the pin range handling in the AT91 driver so it works again

 - Fix a NULL-dereference risk in pinctrl single

 - Fix a serious biasing bug in the Mediatek driver

 - Fix the level trigged IRQ in the StarFive JH7110

 - Fix the iomux width in the Rockchip GPIO2-B pin handling

* tag 'pinctrl-v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: rockchip: correct RK3328 iomux width flag for GPIO2-B pins
  pinctrl: starfive: jh7110: Correct the level trigger configuration of iev register
  pinctrl: qcom: x1e80100: Fix special pin offsets
  pinctrl: mediatek: common-v2: Fix broken bias-disable for PULL_PU_PD_RSEL_TYPE
  pinctrl: single: fix potential NULL dereference in pcs_get_function()
  pinctrl: at91: make it work with current gpiolib
  pinctrl: qcom: x1e80100: Update PDC hwirq map
2024-08-28 06:26:32 +12:00
Linus Torvalds
6ace1c7ea2 sound fixes for 6.11-rc6
It became a bit larger collection of fixes than wished at this time,
 but all changes are small and mostly device-specific fixes that
 should be fairly safe to apply.  Majority of fixes are about ASoC
 for AMD SOF, Cirrus codecs, lpass, etc, in addition to the usual
 HD-audio quirks / fixes.
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Merge tag 'sound-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "It became a bit larger collection of fixes than wished at this time,
  but all changes are small and mostly device-specific fixes that should
  be fairly safe to apply.

  Majority of fixes are about ASoC for AMD SOF, Cirrus codecs, lpass,
  etc, in addition to the usual HD-audio quirks / fixes"

* tag 'sound-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (22 commits)
  ALSA: hda: hda_component: Fix mutex crash if nothing ever binds
  ALSA: hda/realtek: support HP Pavilion Aero 13-bg0xxx Mute LED
  ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book3 Ultra
  ASoC: cs-amp-lib: Ignore empty UEFI calibration entries
  ASoC: cs-amp-lib-test: Force test calibration blob entries to be valid
  ALSA: hda/realtek - FIxed ALC285 headphone no sound
  ALSA: hda/realtek - Fixed ALC256 headphone no sound
  ASoC: allow module autoloading for table board_ids
  ASoC: allow module autoloading for table db1200_pids
  ALSA: hda: cs35l56: Don't use the device index as a calibration index
  ALSA: seq: Skip event type filtering for UMP events
  ALSA: hda/realtek: Enable mute/micmute LEDs on HP Laptop 14-ey0xxx
  ASoC: SOF: amd: Fix for acp init sequence
  ASoC: amd: acp: fix module autoloading
  ASoC: mediatek: mt8188: Mark AFE_DAC_CON0 register as volatile
  ASoC: codecs: wcd937x: Fix missing de-assert of reset GPIO
  ASoC: SOF: mediatek: Add missing board compatible
  ASoC: MAINTAINERS: Drop Banajit Goswami from Qualcomm sound drivers
  ASoC: SOF: amd: Fix for incorrect acp error register offsets
  ASoC: SOF: amd: move iram-dram fence register programming sequence
  ...
2024-08-28 06:24:22 +12:00
Vasily Gorbik
a84dd0d8ae s390/ftrace: Avoid calling unwinder in ftrace_return_address()
ftrace_return_address() is called extremely often from
performance-critical code paths when debugging features like
CONFIG_TRACE_IRQFLAGS are enabled. For example, with debug_defconfig,
ftrace selftests on my LPAR currently execute ftrace_return_address()
as follows:

ftrace_return_address(0) - 0 times (common code uses __builtin_return_address(0) instead)
ftrace_return_address(1) - 2,986,805,401 times (with this patch applied)
ftrace_return_address(2) - 140 times
ftrace_return_address(>2) - 0 times

The use of __builtin_return_address(n) was replaced by return_address()
with an unwinder call by commit cae74ba8c2 ("s390/ftrace:
Use unwinder instead of __builtin_return_address()") because
__builtin_return_address(n) simply walks the stack backchain and doesn't
check for reaching the stack top. For shallow stacks with fewer than
"n" frames, this results in reads at low addresses and random
memory accesses.

While calling the fully functional unwinder "works", it is very slow
for this purpose. Moreover, potentially following stack switches and
walking past IRQ context is simply wrong thing to do for
ftrace_return_address().

Reimplement return_address() to essentially be __builtin_return_address(n)
with checks for reaching the stack top. Since the ftrace_return_address(n)
argument is always a constant, keep the implementation in the header,
allowing both GCC and Clang to unroll the loop and optimize it to the
bare minimum.

Fixes: cae74ba8c2 ("s390/ftrace: Use unwinder instead of __builtin_return_address()")
Cc: stable@vger.kernel.org
Reported-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2024-08-27 20:16:48 +02:00
Jens Remus
57216cc985 s390/build: Avoid relocation information in final vmlinux
Since commit 778666df60 ("s390: compile relocatable kernel without
-fPIE") the kernel vmlinux ELF file is linked with --emit-relocs to
preserve all relocations, so that all absolute relocations can be
extracted using the 'relocs' tool to adjust them during boot.

Port and adapt Petr Pavlu's x86 commit 9d9173e9ce ("x86/build: Avoid
relocation information in final vmlinux") to s390 to strip all
relocations from the final vmlinux ELF file to optimize its size.
Following is his original commit message with minor adaptions for s390:

The Linux build process on s390 roughly consists of compiling all input
files, statically linking them into a vmlinux ELF file, and then taking
and turning this file into an actual bzImage bootable file.

vmlinux has in this process two main purposes:
1) It is an intermediate build target on the way to produce the final
   bootable image.
2) It is a file that is expected to be used by debuggers and standard
   ELF tooling to work with the built kernel.

For the second purpose, a vmlinux file is typically collected by various
package build recipes, such as distribution spec files, including the
kernel's own tar-pkg target.

When building the kernel vmlinux contains also relocation information
produced by using the --emit-relocs linker option. This is utilized by
subsequent build steps to create relocs.S and produce a relocatable
image. However, the information is not needed by debuggers and other
standard ELF tooling.

The issue is then that the collected vmlinux file and hence distribution
packages end up unnecessarily large because of this extra data. The
following is a size comparison of vmlinux v6.10 with and without the
relocation information:

  | Configuration      | With relocs | Stripped relocs |
  | defconfig          |      696 MB |          320 MB |
  | -CONFIG_DEBUG_INFO |       48 MB |           32 MB |

Optimize a resulting vmlinux by adding a postlink step that splits the
relocation information into relocs.S and then strips it from the vmlinux
binary.

Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2024-08-27 20:16:48 +02:00
Vasily Gorbik
d759be2823 s390/ftrace: Use kernel ftrace trampoline for modules
Now that both the kernel modules area and the kernel image itself are
located within 4 GB, there is no longer a need to maintain a separate
ftrace_plt trampoline. Use the existing trampoline in the kernel.

Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2024-08-27 20:16:48 +02:00
Vasily Gorbik
017f1f0d39 s390/ftrace: Remove unused ftrace_plt_template*
Unused since commit b860b9346e ("s390/ftrace: remove dead code").

Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2024-08-27 20:16:48 +02:00
Stefan Berger
08d08e2e9f tpm: ibmvtpm: Call tpm2_sessions_init() to initialize session support
Commit d2add27cf2 ("tpm: Add NULL primary creation") introduced
CONFIG_TCG_TPM2_HMAC. When this option is enabled on ppc64 then the
following message appears in the kernel log due to a missing call to
tpm2_sessions_init().

[    2.654549] tpm tpm0: auth session is not active

Add the missing call to tpm2_session_init() to the ibmvtpm driver to
resolve this issue.

Cc: stable@vger.kernel.org # v6.10+
Fixes: d2add27cf2 ("tpm: Add NULL primary creation")
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-08-27 21:11:44 +03:00
Bryan O'Donoghue
ca082333b4 clk: qcom: gcc-x1e80100: Don't use parking clk_ops for QUPs
Per Stephen Boyd's explanation in the link below, QUP RCG clocks do not
need to be parked when switching frequency. A side-effect in parking to a
lower frequency can be a momentary invalid clock driven on an in-use serial
peripheral.

This can cause "junk" to spewed out of a UART as a low-impact example. On
the x1e80100-crd this serial port junk can be observed on linux-next.

Apply a similar fix to the x1e80100 Global Clock controller to remediate.

Link: https://lore.kernel.org/all/20240819233628.2074654-3-swboyd@chromium.org/
Fixes: 161b7c401f ("clk: qcom: Add Global Clock controller (GCC) driver for X1E80100")
Fixes: 929c75d575 ("clk: qcom: gcc-sm8550: Mark RCGs shared where applicable")
Suggested-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20240823-x1e80100-clk-fix-v1-1-0b1b4f5a96e8@linaro.org
Reviewed-by: Konrad Dybcio <konradybcio@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-08-27 11:02:18 -07:00
Andrew Davis
cf8c39b00e power: reset: brcmstb: Do not go into infinite loop if reset fails
There may be other backup reset methods available, do not halt
here so that other reset methods can be tried.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20240610142836.168603-5-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2024-08-27 19:35:23 +02:00
Andrew Davis
ad87aee5cb power: reset: brcmstb: Use devm_register_sys_off_handler()
Function register_restart_handler() is deprecated. Using this new API
removes our need to keep and manage a struct notifier_block.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20240610142836.168603-4-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2024-08-27 19:35:23 +02:00
Andrew Davis
a4ceaab660 power: reset: brcmstb: Use syscon_regmap_lookup_by_phandle_args() helper
Simplify probe by fetching the regmap and its arguments in one call.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20240610142836.168603-3-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2024-08-27 19:35:04 +02:00