net: macb: fix PTP TX timestamp failure due to packet padding

[ Upstream commit 7b90f5a665acd46efbbfa677a3a3a18d01ad6487 ]

PTP TX timestamp handling was observed to be broken with this driver
when using the raw Layer 2 PTP encapsulation. ptp4l was not receiving
the expected TX timestamp after transmitting a packet, causing it to
enter a failure state.

The problem appears to be due to the way that the driver pads packets
which are smaller than the Ethernet minimum of 60 bytes. If headroom
space was available in the SKB, this caused the driver to move the data
back to utilize it. However, this appears to cause other data references
in the SKB to become inconsistent. In particular, this caused the
ptp_one_step_sync function to later (in the TX completion path) falsely
detect the packet as a one-step SYNC packet, even when it was not, which
caused the TX timestamp to not be processed when it should be.

Using the headroom for this purpose seems like an unnecessary complexity
as this is not a hot path in the driver, and in most cases it appears
that there is sufficient tailroom to not require using the headroom
anyway. Remove this usage of headroom to prevent this inconsistency from
occurring and causing other problems.

Fixes: 653e92a9175e ("net: macb: add support for padding and fcs computation")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com> # on SAMA7G5
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

dmaengine: Fix double increment of client_count in dma_chan_get()

[ Upstream commit f3dc1b3b4750851a94212dba249703dd0e50bb20 ]

The first time dma_chan_get() is called for a channel the channel
client_count is incorrectly incremented twice for public channels,
first in balance_ref_count(), and again prior to returning. This
results in an incorrect client count which will lead to the
channel resources not being freed when they should be. A simple
 test of repeated module load and unload of async_tx on a Dell
 Power Edge R7425 also shows this resulting in a kref underflow
 warning.

[  124.329662] async_tx: api initialized (async)
[  129.000627] async_tx: api initialized (async)
[  130.047839] ------------[ cut here ]------------
[  130.052472] refcount_t: underflow; use-after-free.
[  130.057279] WARNING: CPU: 3 PID: 19364 at lib/refcount.c:28
refcount_warn_saturate+0xba/0x110
[  130.065811] Modules linked in: async_tx(-) rfkill intel_rapl_msr
intel_rapl_common amd64_edac edac_mce_amd ipmi_ssif kvm_amd dcdbas kvm
mgag200 drm_shmem_helper acpi_ipmi irqbypass drm_kms_helper ipmi_si
syscopyarea sysfillrect rapl pcspkr ipmi_devintf sysimgblt fb_sys_fops
k10temp i2c_piix4 ipmi_msghandler acpi_power_meter acpi_cpufreq vfat
fat drm fuse xfs libcrc32c sd_mod t10_pi sg ahci crct10dif_pclmul
libahci crc32_pclmul crc32c_intel ghash_clmulni_intel igb megaraid_sas
i40e libata i2c_algo_bit ccp sp5100_tco dca dm_mirror dm_region_hash
dm_log dm_mod [last unloaded: async_tx]
[  130.117361] CPU: 3 PID: 19364 Comm: modprobe Kdump: loaded Not
tainted 5.14.0-185.el9.x86_64 #1
[  130.126091] Hardware name: Dell Inc. PowerEdge R7425/02MJ3T, BIOS
1.18.0 01/17/2022
[  130.133806] RIP: 0010:refcount_warn_saturate+0xba/0x110
[  130.139041] Code: 01 01 e8 6d bd 55 00 0f 0b e9 72 9d 8a 00 80 3d
26 18 9c 01 00 75 85 48 c7 c7 f8 a3 03 9d c6 05 16 18 9c 01 01 e8 4a
bd 55 00 <0f> 0b e9 4f 9d 8a 00 80 3d 01 18 9c 01 00 0f 85 5e ff ff ff
48 c7
[  130.157807] RSP: 0018:ffffbf98898afe68 EFLAGS: 00010286
[  130.163036] RAX: 0000000000000000 RBX: ffff9da06028e598 RCX: 0000000000000000
[  130.170172] RDX: ffff9daf9de26480 RSI: ffff9daf9de198a0 RDI: ffff9daf9de198a0
[  130.177316] RBP: ffff9da7cddf3970 R08: 0000000000000000 R09: 00000000ffff7fff
[  130.184459] R10: ffffbf98898afd00 R11: ffffffff9d9e8c28 R12: ffff9da7cddf1970
[  130.191596] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[  130.198739] FS:  00007f646435c740(0000) GS:ffff9daf9de00000(0000)
knlGS:0000000000000000
[  130.206832] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  130.212586] CR2: 00007f6463b214f0 CR3: 00000008ab98c000 CR4: 00000000003506e0
[  130.219729] Call Trace:
[  130.222192]  <TASK>
[  130.224305]  dma_chan_put+0x10d/0x110
[  130.227988]  dmaengine_put+0x7a/0xa0
[  130.231575]  __do_sys_delete_module.constprop.0+0x178/0x280
[  130.237157]  ? syscall_trace_enter.constprop.0+0x145/0x1d0
[  130.242652]  do_syscall_64+0x5c/0x90
[  130.246240]  ? exc_page_fault+0x62/0x150
[  130.250178]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  130.255243] RIP: 0033:0x7f6463a3f5ab
[  130.258830] Code: 73 01 c3 48 8b 0d 75 a8 1b 00 f7 d8 64 89 01 48
83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00
00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 45 a8 1b 00 f7 d8 64 89
01 48
[  130.277591] RSP: 002b:00007fff22f972c8 EFLAGS: 00000206 ORIG_RAX:
00000000000000b0
[  130.285164] RAX: ffffffffffffffda RBX: 000055b6786edd40 RCX: 00007f6463a3f5ab
[  130.292303] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 000055b6786edda8
[  130.299443] RBP: 000055b6786edd40 R08: 0000000000000000 R09: 0000000000000000
[  130.306584] R10: 00007f6463b9eac0 R11: 0000000000000206 R12: 000055b6786edda8
[  130.313731] R13: 0000000000000000 R14: 000055b6786edda8 R15: 00007fff22f995f8
[  130.320875]  </TASK>
[  130.323081] ---[ end trace eff7156d56b5cf25 ]---

cat /sys/class/dma/dma0chan*/in_use would get the wrong result.
2
2
2

Fixes: d2f4f99db3e9 ("dmaengine: Rework dma_chan_get")
Signed-off-by: Koba Ko <koba.ko@canonical.com>
Reviewed-by: Jie Hai <haijie1@huawei.com>
Test-by: Jie Hai <haijie1@huawei.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Joel Savitz <jsavitz@redhat.com>
Link: https://lore.kernel.org/r/20221201030050.978595-1-koba.ko@canonical.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/panfrost: fix GENERIC_ATOMIC64 dependency

[ Upstream commit 6437a549ae178a3f5a5c03e983f291ebcdc2bbc7 ]

On ARMv5 and earlier, a randconfig build can still run into

WARNING: unmet direct dependencies detected for IOMMU_IO_PGTABLE_LPAE
  Depends on [n]: IOMMU_SUPPORT [=y] && (ARM [=y] || ARM64 || COMPILE_TEST [=y]) && !GENERIC_ATOMIC64 [=y]
  Selected by [y]:
  - DRM_PANFROST [=y] && HAS_IOMEM [=y] && DRM [=y] && (ARM [=y] || ARM64 || COMPILE_TEST [=y] && !GENERIC_ATOMIC64 [=y]) && MMU [=y]

Rework the dependencies to always require a working cmpxchg64.

Fixes: db594ba3fcf9 ("drm/panfrost: depend on !GENERIC_ATOMIC64 when using COMPILE_TEST")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230117164456.1591901-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: mlx5: eliminate anonymous module_init & module_exit

[ Upstream commit 2c1e1b949024989e20907b84e11a731a50778416 ]

Eliminate anonymous module_init() and module_exit(), which can lead to
confusion or ambiguity when reading System.map, crashes/oops/bugs,
or an initcall_debug log.

Give each of these init and exit functions unique driver-specific
names to eliminate the anonymous names.

Example 1: (System.map)
 ffffffff832fc78c t init
 ffffffff832fc79e t init
 ffffffff832fc8f8 t init

Example 2: (initcall_debug log)
 calling  init+0x0/0x12 @ 1
 initcall init+0x0/0x12 returned 0 after 15 usecs
 calling  init+0x0/0x60 @ 1
 initcall init+0x0/0x60 returned 0 after 2 usecs
 calling  init+0x0/0x9a @ 1
 initcall init+0x0/0x9a returned 0 after 74 usecs

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Eli Cohen <eli@mellanox.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: linux-rdma@vger.kernel.org
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/mlx5: E-switch, Fix switchdev mode after devlink reload

[ Upstream commit 7c83d1f4c5adae9583e7fca1e3e830d6b061522d ]

The cited commit removes eswitch mode none. So after devlink reload
in switchdev mode, eswitch mode is not changed. But actually eswitch
is disabled during devlink reload.

Fix it by setting eswitch mode to legacy when disabling eswitch
which is called by reload_down.

Fixes: f019679ea5f2 ("net/mlx5: E-switch, Remove dependency between sriov and eswitch mode")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/mlx5e: Set decap action based on attr for sample

[ Upstream commit ffa99b534732f90077f346c62094cab3d1ccddce ]

Currently decap action is set based on tunnel_id. That means it is
set unconditionally. But for decap, ct and sample actions, decap is
done before ct. No need to decap again in sample.

And the actions are set correctly when parsing. So set decap action
based on attr instead of tunnel_id.

Fixes: 2741f2230905 ("net/mlx5e: TC, Support sample offload action for tunneled traffic")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/mlx5e: QoS, Fix wrongfully setting parent_element_id on MODIFY_SCHEDULING_ELEMENT

[ Upstream commit 4ddf77f9bc76092d268bd3af447d60d9cc62b652 ]

According to HW spec parent_element_id field should be reserved (0x0) when calling
MODIFY_SCHEDULING_ELEMENT command.

This patch remove the wrong initialization of reserved field, parent_element_id, on
mlx5_qos_update_node.

Fixes: 214baf22870c ("net/mlx5e: Support HTB offload")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/mlx5: E-switch, Fix setting of reserved fields on MODIFY_SCHEDULING_ELEMENT

[ Upstream commit f51471d1935ce1f504fce6c115ce3bfbc32032b0 ]

According to HW spec element_type, element_attributes and parent_element_id fields
should be reserved (0x0) when calling MODIFY_SCHEDULING_ELEMENT command.

This patch remove initialization of these fields when calling the command.

Fixes: bd77bf1cb595 ("net/mlx5: Add SRIOV VF max rate configuration support")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/mlx5e: Avoid false lock dependency warning on tc_ht even more

[ Upstream commit 5aa56105930374928d567744595fd7ac525d0688 ]

The cited commit changed class of tc_ht internal mutex in order to avoid
false lock dependency with fs_core node and flow_table hash table
structures. However, hash table implementation internally also includes a
workqueue task with its own lockdep map which causes similar bogus lockdep
splat[0]. Fix it by also adding dedicated class for hash table workqueue
work structure of tc_ht.

[0]:

[ 1139.672465] ======================================================
[ 1139.673552] WARNING: possible circular locking dependency detected
[ 1139.674635] 6.1.0_for_upstream_debug_2022_12_12_17_02 #1 Not tainted
[ 1139.675734] ------------------------------------------------------
[ 1139.676801] modprobe/5998 is trying to acquire lock:
[ 1139.677726] ffff88811e7b93b8 (&node->lock){++++}-{3:3}, at: down_write_ref_node+0x7c/0xe0 [mlx5_core]
[ 1139.679662]
               but task is already holding lock:
[ 1139.680703] ffff88813c1f96a0 (&tc_ht_lock_key){+.+.}-{3:3}, at: rhashtable_free_and_destroy+0x38/0x6f0
[ 1139.682223]
               which lock already depends on the new lock.

[ 1139.683640]
               the existing dependency chain (in reverse order) is:
[ 1139.684887]
               -> #2 (&tc_ht_lock_key){+.+.}-{3:3}:
[ 1139.685975]        __mutex_lock+0x12c/0x14b0
[ 1139.686659]        rht_deferred_worker+0x35/0x1540
[ 1139.687405]        process_one_work+0x7c2/0x1310
[ 1139.688134]        worker_thread+0x59d/0xec0
[ 1139.688820]        kthread+0x28f/0x330
[ 1139.689444]        ret_from_fork+0x1f/0x30
[ 1139.690106]
               -> #1 ((work_completion)(&ht->run_work)){+.+.}-{0:0}:
[ 1139.691250]        __flush_work+0xe8/0x900
[ 1139.691915]        __cancel_work_timer+0x2ca/0x3f0
[ 1139.692655]        rhashtable_free_and_destroy+0x22/0x6f0
[ 1139.693472]        del_sw_flow_table+0x22/0xb0 [mlx5_core]
[ 1139.694592]        tree_put_node+0x24c/0x450 [mlx5_core]
[ 1139.695686]        tree_remove_node+0x6e/0x100 [mlx5_core]
[ 1139.696803]        mlx5_destroy_flow_table+0x187/0x690 [mlx5_core]
[ 1139.698017]        mlx5e_tc_nic_cleanup+0x2f8/0x400 [mlx5_core]
[ 1139.699217]        mlx5e_cleanup_nic_rx+0x2b/0x210 [mlx5_core]
[ 1139.700397]        mlx5e_detach_netdev+0x19d/0x2b0 [mlx5_core]
[ 1139.701571]        mlx5e_suspend+0xdb/0x140 [mlx5_core]
[ 1139.702665]        mlx5e_remove+0x89/0x190 [mlx5_core]
[ 1139.703756]        auxiliary_bus_remove+0x52/0x70
[ 1139.704492]        device_release_driver_internal+0x3c1/0x600
[ 1139.705360]        bus_remove_device+0x2a5/0x560
[ 1139.706080]        device_del+0x492/0xb80
[ 1139.706724]        mlx5_rescan_drivers_locked+0x194/0x6a0 [mlx5_core]
[ 1139.707961]        mlx5_unregister_device+0x7a/0xa0 [mlx5_core]
[ 1139.709138]        mlx5_uninit_one+0x5f/0x160 [mlx5_core]
[ 1139.710252]        remove_one+0xd1/0x160 [mlx5_core]
[ 1139.711297]        pci_device_remove+0x96/0x1c0
[ 1139.722721]        device_release_driver_internal+0x3c1/0x600
[ 1139.723590]        unbind_store+0x1b1/0x200
[ 1139.724259]        kernfs_fop_write_iter+0x348/0x520
[ 1139.725019]        vfs_write+0x7b2/0xbf0
[ 1139.725658]        ksys_write+0xf3/0x1d0
[ 1139.726292]        do_syscall_64+0x3d/0x90
[ 1139.726942]        entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 1139.727769]
               -> #0 (&node->lock){++++}-{3:3}:
[ 1139.728698]        __lock_acquire+0x2cf5/0x62f0
[ 1139.729415]        lock_acquire+0x1c1/0x540
[ 1139.730076]        down_write+0x8e/0x1f0
[ 1139.730709]        down_write_ref_node+0x7c/0xe0 [mlx5_core]
[ 1139.731841]        mlx5_del_flow_rules+0x6f/0x610 [mlx5_core]
[ 1139.732982]        __mlx5_eswitch_del_rule+0xdd/0x560 [mlx5_core]
[ 1139.734207]        mlx5_eswitch_del_offloaded_rule+0x14/0x20 [mlx5_core]
[ 1139.735491]        mlx5e_tc_rule_unoffload+0x104/0x2b0 [mlx5_core]
[ 1139.736716]        mlx5e_tc_unoffload_fdb_rules+0x10c/0x1f0 [mlx5_core]
[ 1139.738007]        mlx5e_tc_del_fdb_flow+0xc3c/0xfa0 [mlx5_core]
[ 1139.739213]        mlx5e_tc_del_flow+0x146/0xa20 [mlx5_core]
[ 1139.740377]        _mlx5e_tc_del_flow+0x38/0x60 [mlx5_core]
[ 1139.741534]        rhashtable_free_and_destroy+0x3be/0x6f0
[ 1139.742351]        mlx5e_tc_ht_cleanup+0x1b/0x30 [mlx5_core]
[ 1139.743512]        mlx5e_cleanup_rep_tx+0x4a/0xe0 [mlx5_core]
[ 1139.744683]        mlx5e_detach_netdev+0x1ca/0x2b0 [mlx5_core]
[ 1139.745860]        mlx5e_netdev_change_profile+0xd9/0x1c0 [mlx5_core]
[ 1139.747098]        mlx5e_netdev_attach_nic_profile+0x1b/0x30 [mlx5_core]
[ 1139.748372]        mlx5e_vport_rep_unload+0x16a/0x1b0 [mlx5_core]
[ 1139.749590]        __esw_offloads_unload_rep+0xb1/0xd0 [mlx5_core]
[ 1139.750813]        mlx5_eswitch_unregister_vport_reps+0x409/0x5f0 [mlx5_core]
[ 1139.752147]        mlx5e_rep_remove+0x62/0x80 [mlx5_core]
[ 1139.753293]        auxiliary_bus_remove+0x52/0x70
[ 1139.754028]        device_release_driver_internal+0x3c1/0x600
[ 1139.754885]        driver_detach+0xc1/0x180
[ 1139.755553]        bus_remove_driver+0xef/0x2e0
[ 1139.756260]        auxiliary_driver_unregister+0x16/0x50
[ 1139.757059]        mlx5e_rep_cleanup+0x19/0x30 [mlx5_core]
[ 1139.758207]        mlx5e_cleanup+0x12/0x30 [mlx5_core]
[ 1139.759295]        mlx5_cleanup+0xc/0x49 [mlx5_core]
[ 1139.760384]        __x64_sys_delete_module+0x2b5/0x450
[ 1139.761166]        do_syscall_64+0x3d/0x90
[ 1139.761827]        entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 1139.762663]
               other info that might help us debug this:

[ 1139.763925] Chain exists of:
                 &node->lock --> (work_completion)(&ht->run_work) --> &tc_ht_lock_key

[ 1139.765743]  Possible unsafe locking scenario:

[ 1139.766688]        CPU0                    CPU1
[ 1139.767399]        ----                    ----
[ 1139.768111]   lock(&tc_ht_lock_key);
[ 1139.768704]                                lock((work_completion)(&ht->run_work));
[ 1139.769869]                                lock(&tc_ht_lock_key);
[ 1139.770770]   lock(&node->lock);
[ 1139.771326]
                *** DEADLOCK ***

[ 1139.772345] 2 locks held by modprobe/5998:
[ 1139.772994]  #0: ffff88813c1ff0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x8d/0x600
[ 1139.774399]  #1: ffff88813c1f96a0 (&tc_ht_lock_key){+.+.}-{3:3}, at: rhashtable_free_and_destroy+0x38/0x6f0
[ 1139.775822]
               stack backtrace:
[ 1139.776579] CPU: 3 PID: 5998 Comm: modprobe Not tainted 6.1.0_for_upstream_debug_2022_12_12_17_02 #1
[ 1139.777935] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 1139.779529] Call Trace:
[ 1139.779992]  <TASK>
[ 1139.780409]  dump_stack_lvl+0x57/0x7d
[ 1139.781015]  check_noncircular+0x278/0x300
[ 1139.781687]  ? print_circular_bug+0x460/0x460
[ 1139.782381]  ? rcu_read_lock_sched_held+0x3f/0x70
[ 1139.783121]  ? lock_release+0x487/0x7c0
[ 1139.783759]  ? orc_find.part.0+0x1f1/0x330
[ 1139.784423]  ? mark_lock.part.0+0xef/0x2fc0
[ 1139.785091]  __lock_acquire+0x2cf5/0x62f0
[ 1139.785754]  ? register_lock_class+0x18e0/0x18e0
[ 1139.786483]  lock_acquire+0x1c1/0x540
[ 1139.787093]  ? down_write_ref_node+0x7c/0xe0 [mlx5_core]
[ 1139.788195]  ? lockdep_hardirqs_on_prepare+0x3f0/0x3f0
[ 1139.788978]  ? register_lock_class+0x18e0/0x18e0
[ 1139.789715]  down_write+0x8e/0x1f0
[ 1139.790292]  ? down_write_ref_node+0x7c/0xe0 [mlx5_core]
[ 1139.791380]  ? down_write_killable+0x220/0x220
[ 1139.792080]  ? find_held_lock+0x2d/0x110
[ 1139.792713]  down_write_ref_node+0x7c/0xe0 [mlx5_core]
[ 1139.793795]  mlx5_del_flow_rules+0x6f/0x610 [mlx5_core]
[ 1139.794879]  __mlx5_eswitch_del_rule+0xdd/0x560 [mlx5_core]
[ 1139.796032]  ? __esw_offloads_unload_rep+0xd0/0xd0 [mlx5_core]
[ 1139.797227]  ? xa_load+0x11a/0x200
[ 1139.797800]  ? __xa_clear_mark+0xf0/0xf0
[ 1139.798438]  mlx5_eswitch_del_offloaded_rule+0x14/0x20 [mlx5_core]
[ 1139.799660]  mlx5e_tc_rule_unoffload+0x104/0x2b0 [mlx5_core]
[ 1139.800821]  mlx5e_tc_unoffload_fdb_rules+0x10c/0x1f0 [mlx5_core]
[ 1139.802049]  ? mlx5_eswitch_get_uplink_priv+0x25/0x80 [mlx5_core]
[ 1139.803260]  mlx5e_tc_del_fdb_flow+0xc3c/0xfa0 [mlx5_core]
[ 1139.804398]  ? __cancel_work_timer+0x1c2/0x3f0
[ 1139.805099]  ? mlx5e_tc_unoffload_from_slow_path+0x460/0x460 [mlx5_core]
[ 1139.806387]  mlx5e_tc_del_flow+0x146/0xa20 [mlx5_core]
[ 1139.807481]  _mlx5e_tc_del_flow+0x38/0x60 [mlx5_core]
[ 1139.808564]  rhashtable_free_and_destroy+0x3be/0x6f0
[ 1139.809336]  ? mlx5e_tc_del_flow+0xa20/0xa20 [mlx5_core]
[ 1139.809336]  ? mlx5e_tc_del_flow+0xa20/0xa20 [mlx5_core]
[ 1139.810455]  mlx5e_tc_ht_cleanup+0x1b/0x30 [mlx5_core]
[ 1139.811552]  mlx5e_cleanup_rep_tx+0x4a/0xe0 [mlx5_core]
[ 1139.812655]  mlx5e_detach_netdev+0x1ca/0x2b0 [mlx5_core]
[ 1139.813768]  mlx5e_netdev_change_profile+0xd9/0x1c0 [mlx5_core]
[ 1139.814952]  mlx5e_netdev_attach_nic_profile+0x1b/0x30 [mlx5_core]
[ 1139.816166]  mlx5e_vport_rep_unload+0x16a/0x1b0 [mlx5_core]
[ 1139.817336]  __esw_offloads_unload_rep+0xb1/0xd0 [mlx5_core]
[ 1139.818507]  mlx5_eswitch_unregister_vport_reps+0x409/0x5f0 [mlx5_core]
[ 1139.819788]  ? mlx5_eswitch_uplink_get_proto_dev+0x30/0x30 [mlx5_core]
[ 1139.821051]  ? kernfs_find_ns+0x137/0x310
[ 1139.821705]  mlx5e_rep_remove+0x62/0x80 [mlx5_core]
[ 1139.822778]  auxiliary_bus_remove+0x52/0x70
[ 1139.823449]  device_release_driver_internal+0x3c1/0x600
[ 1139.824240]  driver_detach+0xc1/0x180
[ 1139.824842]  bus_remove_driver+0xef/0x2e0
[ 1139.825504]  auxiliary_driver_unregister+0x16/0x50
[ 1139.826245]  mlx5e_rep_cleanup+0x19/0x30 [mlx5_core]
[ 1139.827322]  mlx5e_cleanup+0x12/0x30 [mlx5_core]
[ 1139.828345]  mlx5_cleanup+0xc/0x49 [mlx5_core]
[ 1139.829382]  __x64_sys_delete_module+0x2b5/0x450
[ 1139.830119]  ? module_flags+0x300/0x300
[ 1139.830750]  ? task_work_func_match+0x50/0x50
[ 1139.831440]  ? task_work_cancel+0x20/0x20
[ 1139.832088]  ? lockdep_hardirqs_on_prepare+0x273/0x3f0
[ 1139.832873]  ? syscall_enter_from_user_mode+0x1d/0x50
[ 1139.833661]  ? trace_hardirqs_on+0x2d/0x100
[ 1139.834328]  do_syscall_64+0x3d/0x90
[ 1139.834922]  entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 1139.835700] RIP: 0033:0x7f153e71288b
[ 1139.836302] Code: 73 01 c3 48 8b 0d 9d 75 0e 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 6d 75 0e 00 f7 d8 64 89 01 48
[ 1139.838866] RSP: 002b:00007ffe0a3ed938 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[ 1139.840020] RAX: ffffffffffffffda RBX: 0000564c2cbf8220 RCX: 00007f153e71288b
[ 1139.841043] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000564c2cbf8288
[ 1139.842072] RBP: 0000564c2cbf8220 R08: 0000000000000000 R09: 0000000000000000
[ 1139.843094] R10: 00007f153e7a3ac0 R11: 0000000000000206 R12: 0000564c2cbf8288
[ 1139.844118] R13: 0000000000000000 R14: 0000564c2cbf7ae8 R15: 00007ffe0a3efcb8

Fixes: 9ba33339c043 ("net/mlx5e: Avoid false lock depenency warning on tc_ht")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: ipa: disable ipa interrupt during suspend

[ Upstream commit 9ec9b2a30853ba843b70ea16f196e5fe3327be5f ]

The IPA interrupt can fire when pm_runtime is disabled due to it racing
with the PM suspend/resume code. This causes a splat in the interrupt
handler when it tries to call pm_runtime_get().

Explicitly disable the interrupt in our ->suspend callback, and
re-enable it in ->resume to avoid this. If there is an interrupt pending
it will be handled after resuming. The interrupt is a wake_irq, as a
result even when disabled if it fires it will cause the system to wake
from suspend as well as cancel any suspend transition that may be in
progress. If there is an interrupt pending, the ipa_isr_thread handler
will be called after resuming.

Fixes: 1aac309d3207 ("net: ipa: use autosuspend")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20230115175925.465918-1-caleb.connolly@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: Fix possible deadlock in rfcomm_sk_state_change

[ Upstream commit 1d80d57ffcb55488f0ec0b77928d4f82d16b6a90 ]

syzbot reports a possible deadlock in rfcomm_sk_state_change [1].
While rfcomm_sock_connect acquires the sk lock and waits for
the rfcomm lock, rfcomm_sock_release could have the rfcomm
lock and hit a deadlock for acquiring the sk lock.
Here's a simplified flow:

rfcomm_sock_connect:
  lock_sock(sk)
  rfcomm_dlc_open:
    rfcomm_lock()

rfcomm_sock_release:
  rfcomm_sock_shutdown:
    rfcomm_lock()
    __rfcomm_dlc_close:
        rfcomm_k_state_change:
  lock_sock(sk)

This patch drops the sk lock before calling rfcomm_dlc_open to
avoid the possible deadlock and holds sk's reference count to
prevent use-after-free after rfcomm_dlc_open completes.

Reported-by: syzbot+d7ce59...@syzkaller.appspotmail.com
Fixes: 1804fdf6e494 ("Bluetooth: btintel: Combine setting up MSFT extension")
Link: https://syzkaller.appspot.com/bug?extid=d7ce59b06b3eb14fd218
Signed-off-by: Ying Hsu <yinghsu@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: hci_event: Fix Invalid wait context

[ Upstream commit e9d50f76fe1f7f6f251114919247445fb5cb3734 ]

This fixes the following trace caused by attempting to lock
cmd_sync_work_lock while holding the rcu_read_lock:

kworker/u3:2/212 is trying to lock:
ffff888002600910 (&hdev->cmd_sync_work_lock){+.+.}-{3:3}, at:
hci_cmd_sync_queue+0xad/0x140
other info that might help us debug this:
context-{4:4}
4 locks held by kworker/u3:2/212:
 #0: ffff8880028c6530 ((wq_completion)hci0#2){+.+.}-{0:0}, at:
 process_one_work+0x4dc/0x9a0
 #1: ffff888001aafde0 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0},
 at: process_one_work+0x4dc/0x9a0
 #2: ffff888002600070 (&hdev->lock){+.+.}-{3:3}, at:
 hci_cc_le_set_cig_params+0x64/0x4f0
 #3: ffffffffa5994b00 (rcu_read_lock){....}-{1:2}, at:
 hci_cc_le_set_cig_params+0x2f9/0x4f0

Fixes: 26afbd826ee3 ("Bluetooth: Add initial implementation of CIS connections")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: ISO: Fix possible circular locking dependency

[ Upstream commit 6a5ad251b7cdb990a3705428aef408433f05614a ]

This attempts to fix the following trace:

kworker/u3:1/184 is trying to acquire lock:
ffff888001888130 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}, at:
iso_connect_cfm+0x2de/0x690

but task is already holding lock:
ffff8880028d1c20 (&conn->lock){+.+.}-{2:2}, at:
iso_connect_cfm+0x265/0x690

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (&conn->lock){+.+.}-{2:2}:
       lock_acquire+0x176/0x3d0
       _raw_spin_lock+0x2a/0x40
       __iso_sock_close+0x1dd/0x4f0
       iso_sock_release+0xa0/0x1b0
       sock_close+0x5e/0x120
       __fput+0x102/0x410
       task_work_run+0xf1/0x160
       exit_to_user_mode_prepare+0x170/0x180
       syscall_exit_to_user_mode+0x19/0x50
       do_syscall_64+0x4e/0x90
       entry_SYSCALL_64_after_hwframe+0x62/0xcc

-> #0 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}:
       check_prev_add+0xfc/0x1190
       __lock_acquire+0x1e27/0x2750
       lock_acquire+0x176/0x3d0
       lock_sock_nested+0x32/0x80
       iso_connect_cfm+0x2de/0x690
       hci_cc_le_setup_iso_path+0x195/0x340
       hci_cmd_complete_evt+0x1ae/0x500
       hci_event_packet+0x38e/0x7c0
       hci_rx_work+0x34c/0x980
       process_one_work+0x5a5/0x9a0
       worker_thread+0x89/0x6f0
       kthread+0x14e/0x180
       ret_from_fork+0x22/0x30

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&conn->lock);
                               lock(sk_lock-AF_BLUETOOTH-BTPROTO_ISO);
                               lock(&conn->lock);
  lock(sk_lock-AF_BLUETOOTH-BTPROTO_ISO);

 *** DEADLOCK ***

Fixes: ccf74f2390d6 ("Bluetooth: Add BTPROTO_ISO socket type")
Fixes: f764a6c2c1e4 ("Bluetooth: ISO: Add broadcast support")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: ISO: Avoid circular locking dependency

[ Upstream commit 241f51931c35085449502c10f64fb3ecd6e02171 ]

This attempts to avoid circular locking dependency between sock_lock
and hdev_lock:

WARNING: possible circular locking dependency detected
6.0.0-rc7-03728-g18dd8ab0a783 #3 Not tainted
------------------------------------------------------
kworker/u3:2/53 is trying to acquire lock:
ffff888000254130 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}, at:
iso_conn_del+0xbd/0x1d0
but task is already holding lock:
ffffffff9f39a080 (hci_cb_list_lock){+.+.}-{3:3}, at:
hci_le_cis_estabilished_evt+0x1b5/0x500
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (hci_cb_list_lock){+.+.}-{3:3}:
       __mutex_lock+0x10e/0xfe0
       hci_le_remote_feat_complete_evt+0x17f/0x320
       hci_event_packet+0x39c/0x7d0
       hci_rx_work+0x2bf/0x950
       process_one_work+0x569/0x980
       worker_thread+0x2a3/0x6f0
       kthread+0x153/0x180
       ret_from_fork+0x22/0x30
-> #1 (&hdev->lock){+.+.}-{3:3}:
       __mutex_lock+0x10e/0xfe0
       iso_connect_cis+0x6f/0x5a0
       iso_sock_connect+0x1af/0x710
       __sys_connect+0x17e/0x1b0
       __x64_sys_connect+0x37/0x50
       do_syscall_64+0x43/0x90
       entry_SYSCALL_64_after_hwframe+0x62/0xcc
-> #0 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}:
       __lock_acquire+0x1b51/0x33d0
       lock_acquire+0x16f/0x3b0
       lock_sock_nested+0x32/0x80
       iso_conn_del+0xbd/0x1d0
       iso_connect_cfm+0x226/0x680
       hci_le_cis_estabilished_evt+0x1ed/0x500
       hci_event_packet+0x39c/0x7d0
       hci_rx_work+0x2bf/0x950
       process_one_work+0x569/0x980
       worker_thread+0x2a3/0x6f0
       kthread+0x153/0x180
       ret_from_fork+0x22/0x30
other info that might help us debug this:
Chain exists of:
  sk_lock-AF_BLUETOOTH-BTPROTO_ISO --> &hdev->lock --> hci_cb_list_lock
 Possible unsafe locking scenario:
       CPU0                    CPU1
       ----                    ----
  lock(hci_cb_list_lock);
                               lock(&hdev->lock);
                               lock(hci_cb_list_lock);
  lock(sk_lock-AF_BLUETOOTH-BTPROTO_ISO);
 *** DEADLOCK ***
4 locks held by kworker/u3:2/53:
 #0: ffff8880021d9130 ((wq_completion)hci0#2){+.+.}-{0:0}, at:
 process_one_work+0x4ad/0x980
 #1: ffff888002387de0 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0},
 at: process_one_work+0x4ad/0x980
 #2: ffff888001ac0070 (&hdev->lock){+.+.}-{3:3}, at:
 hci_le_cis_estabilished_evt+0xc3/0x500
 #3: ffffffff9f39a080 (hci_cb_list_lock){+.+.}-{3:3}, at:
 hci_le_cis_estabilished_evt+0x1b5/0x500

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Stable-dep-of: 6a5ad251b7cd ("Bluetooth: ISO: Fix possible circular locking dependency")
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: hci_sync: fix memory leak in hci_update_adv_data()

[ Upstream commit 1ed8b37cbaf14574c779064ef1372af62e8ba6aa ]

When hci_cmd_sync_queue() failed in hci_update_adv_data(), inst_ptr is
not freed, which will cause memory leak, convert to use ERR_PTR/PTR_ERR
to pass the instance to callback so no memory needs to be allocated.

Fixes: 651cd3d65b0f ("Bluetooth: convert hci_update_adv_data to hci_sync")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: hci_conn: Fix memory leaks

[ Upstream commit 3aa21311f36d8a2730c7ccef37235e951f23927b ]

When hci_cmd_sync_queue() failed in hci_le_terminate_big() or
hci_le_big_terminate(), the memory pointed by variable d is not freed,
which will cause memory leak. Add release process to error path.

Fixes: eca0ae4aea66 ("Bluetooth: Add initial implementation of BIS connections")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: Fix a buffer overflow in mgmt_mesh_add()

[ Upstream commit 2185e0fdbb2137f22a9dd9fcbf6481400d56299b ]

Smatch Warning:
net/bluetooth/mgmt_util.c:375 mgmt_mesh_add() error: __memcpy()
'mesh_tx->param' too small (48 vs 50)

Analysis:

'mesh_tx->param' is array of size 48. This is the destination.
u8 param[sizeof(struct mgmt_cp_mesh_send) + 29]; // 19 + 29 = 48.

But in the caller 'mesh_send' we reject only when len > 50.
len > (MGMT_MESH_SEND_SIZE + 31) // 19 + 31 = 50.

Fixes: b338d91703fa ("Bluetooth: Implement support for Mesh")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

netfilter: conntrack: handle tcp challenge acks during connection reuse

[ Upstream commit c410cb974f2ba562920ecb8492ee66945dcf88af ]

When a connection is re-used, following can happen:
[ connection starts to close, fin sent in either direction ]
 > syn   # initator quickly reuses connection
 < ack   # peer sends a challenge ack
 > rst   # rst, sequence number == ack_seq of previous challenge ack
 > syn   # this syn is expected to pass

Problem is that the rst will fail window validation, so it gets
tagged as invalid.

If ruleset drops such packets, we get repeated syn-retransmits until
initator gives up or peer starts responding with syn/ack.

Before the commit indicated in the "Fixes" tag below this used to work:

The challenge-ack made conntrack re-init state based on the challenge
ack itself, so the following rst would pass window validation.

Add challenge-ack support: If we get ack for syn, record the ack_seq,
and then check if the rst sequence number matches the last ack number
seen in reverse direction.

Fixes: c7aab4f17021 ("netfilter: nf_conntrack_tcp: re-init for syn packets only")
Reported-by: Michal Tesar <mtesar@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

usb: gadget: f_fs: Ensure ep0req is dequeued before free_request

[ Upstream commit ce405d561b020e5a46340eb5146805a625dcacee ]

As per the documentation, function usb_ep_free_request guarantees
the request will not be queued or no longer be re-queued (or
otherwise used). However, with the current implementation it
doesn't make sure that the request in ep0 isn't reused.

Fix this by dequeuing the ep0req on functionfs_unbind before
freeing the request to align with the definition.

Fixes: ddf8abd25994 ("USB: f_fs: the FunctionFS driver")
Signed-off-by: Udipto Goswami <quic_ugoswami@quicinc.com>
Tested-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Link: https://lore.kernel.org/r/20221215052906.8993-3-quic_ugoswami@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

usb: gadget: f_fs: Prevent race during ffs_ep0_queue_wait

[ Upstream commit 6a19da111057f69214b97c62fb0ac59023970850 ]

While performing fast composition switch, there is a possibility that the
process of ffs_ep0_write/ffs_ep0_read get into a race condition
due to ep0req being freed up from functionfs_unbind.

Consider the scenario that the ffs_ep0_write calls the ffs_ep0_queue_wait
by taking a lock &ffs->ev.waitq.lock. However, the functionfs_unbind isn't
bounded so it can go ahead and mark the ep0req to NULL, and since there
is no NULL check in ffs_ep0_queue_wait we will end up in use-after-free.

Fix this by making a serialized execution between the two functions using
a mutex_lock(ffs->mutex).

Fixes: ddf8abd25994 ("USB: f_fs: the FunctionFS driver")
Signed-off-by: Udipto Goswami <quic_ugoswami@quicinc.com>
Tested-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Link: https://lore.kernel.org/r/20221215052906.8993-2-quic_ugoswami@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

usb: ucsi: Ensure connector delayed work items are flushed

[ Upstream commit fac4b8633fd682ecc8e9cff61cb3e33374a1c7e5 ]

During ucsi_unregister() when destroying a connector's workqueue, there
may still be pending delayed work items that haven't been scheduled yet.
Because queue_delayed_work() uses a separate timer to schedule a work
item, the destroy_workqueue() call is not aware of any pending items.
Hence when a pending item's timer expires it would then try to queue on
a dangling workqueue pointer.

Fix this by keeping track of all work items in a list, so that prior to
destroying the workqueue any pending items can be flushed.  Do this by
calling mod_delayed_work() as that will cause pending items to get
queued immediately, which then allows the ensuing destroy_workqueue() to
implicitly drain all currently queued items to completion and free
themselves.

Fixes: b9aa02ca39a4 ("usb: typec: ucsi: Add polling mechanism for partner tasks like alt mode checking")
Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Co-developed-by: Linyu Yuan <quic_linyyuan@quicinc.com>
Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com>
Signed-off-by: Jack Pham <quic_jackp@quicinc.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230110071218.26261-1-quic_jackp@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

block/rnbd-clt: fix wrong max ID in ida_alloc_max

[ Upstream commit 9d6033e350694a67885605674244d43c9559dc36 ]

We need to pass 'end - 1' to ida_alloc_max after switch from
ida_simple_get to ida_alloc_max.

Otherwise smatch warns.

drivers/block/rnbd/rnbd-clt.c:1460 init_dev() error: Calling ida_alloc_max() with a 'max' argument which is a power of 2. -1 missing?

Fixes: 24afc15dbe21 ("block/rnbd: Remove a useless mutex")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20221230010926.32243-1-guoqing.jiang@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

HID: revert CHERRY_MOUSE_000C quirk

[ Upstream commit cbf44580ce6b310272a73e3e794233fd064330bd ]

This partially reverts commit f6d910a89a2391 ("HID: usbhid: Add ALWAYS_POLL quirk
for some mice"), as it turns out to break reboot on some platforms for reason
yet to be understood.

Fixes: f6d910a89a2391 ("HID: usbhid: Add ALWAYS_POLL quirk for some mice")
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp151a-prtt1l

[ Upstream commit 175281f80695569c7f9cf062e5d0ddc4addc109f ]

Chip select pinctrl phandle was missing in several stm32mp15x based boards.

Fixes: ea99a5a02ebc ("ARM: dts: stm32: Create separate pinmux for qspi cs pin in stm32mp15-pinctrl.dtsi")

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp157c-emstamp-argon

[ Upstream commit 732dbcf52f74b254a7ddd4226e0b9638e1e7aeff ]

Chip select pinctrl phandle was missing in several stm32mp15x based boards.

Fixes: ea99a5a02ebc ("ARM: dts: stm32: Create separate pinmux for qspi cs pin in stm32mp15-pinctrl.dtsi")

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Reinhold Mueller <reinhold.mueller@emtrion.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp15xx-dhcom-som

[ Upstream commit 21d83512bf2bd25ebed467151fd2bcd0cca7dc9a ]

Chip select pinctrl phandle was missing in several stm32mp15x based boards.

Fixes: ea99a5a02ebc ("ARM: dts: stm32: Create separate pinmux for qspi cs pin in stm32mp15-pinctrl.dtsi")

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp15xx-dhcor-som

[ Upstream commit 7ffd2266bd32d9f31a4e918443c733906cff0d19 ]

Chip select pinctrl phandle was missing in several stm32mp15x based boards.

Fixes: ea99a5a02ebc ("ARM: dts: stm32: Create separate pinmux for qspi cs pin in stm32mp15-pinctrl.dtsi")

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

pinctrl: rockchip: fix mux route data for rk3568

[ Upstream commit 431d1531466033909d2e8c754a7dc3704b70843f ]

IO mux selection is configured in PMU_GRF_SOC_CON4 and GRF_IOFUNC_SEL0-5
regs on RK3568. pwm0-2 is configured in PMU_GRF reg and the rest is
configured in GRF_IOFUNC regs according to TRM [1].

Update mux route data to reflect this and use proper detection pin for
UART1 IO mux M1.

This fixes HDMITX IO mux M1 selection and makes it possible to enable
HDMI CEC on my Radxa ROCK 3 Model A v1.31 board.

[1] http://opensource.rock-chips.com/images/2/26/Rockchip_RK3568_TRM_Part1_V1.3-20220930P.PDF

Fixes: c0dadc0e47a8 ("pinctrl: rockchip: add support for rk3568")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20230110084636.1141740-1-jonas@kwiboo.se
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: stmmac: fix invalid call to mdiobus_get_phy()

[ Upstream commit 1f3bd64ad921f051254591fbed04fd30b306cde6 ]

In a number of cases the driver assigns a default value of -1 to
priv->plat->phy_addr. This may result in calling mdiobus_get_phy()
with addr parameter being -1. Therefore check for this scenario and
bail out before calling mdiobus_get_phy().

Fixes: 42e87024f727 ("net: stmmac: Fix case when PHY handle is not present")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/669f9671-ecd1-a41b-2727-7b73e3003985@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

HID: check empty report_list in bigben_probe()

[ Upstream commit c7bf714f875531f227f2ef1fdcc8f4d44e7c7d9d ]

Add a check for empty report_list in bigben_probe().
The missing check causes a type confusion when issuing a list_entry()
on an empty report_list.
The problem is caused by the assumption that the device must
have valid report_list. While this will be true for all normal HID
devices, a suitably malicious device can violate the assumption.

Fixes: 256a90ed9e46 ("HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

HID: check empty report_list in hid_validate_values()

[ Upstream commit b12fece4c64857e5fab4290bf01b2e0317a88456 ]

Add a check for empty report_list in hid_validate_values().
The missing check causes a type confusion when issuing a list_entry()
on an empty report_list.
The problem is caused by the assumption that the device must
have valid report_list. While this will be true for all normal HID
devices, a suitably malicious device can violate the assumption.

Fixes: 1b15d2e5b807 ("HID: core: fix validation of report id 0")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: mdio: validate parameter addr in mdiobus_get_phy()

[ Upstream commit 867dbe784c5010a466f00a7d1467c1c5ea569c75 ]

The caller may pass any value as addr, what may result in an out-of-bounds
access to array mdio_map. One existing case is stmmac_init_phy() that
may pass -1 as addr. Therefore validate addr before using it.

Fixes: 7f854420fbfe ("phy: Add API for {un}registering an mdio device to a bus.")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/cdf664ea-3312-e915-73f8-021678d08887@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: usb: sr9700: Handle negative len

[ Upstream commit ecf7cf8efb59789e2b21d2f9ab926142579092b2 ]

Packet len computed as difference of length word extracted from
skb data and four may result in a negative value. In such case
processing of the buffer should be interrupted rather than
setting sr_skb->len to an unexpectedly large value (due to cast
from signed to unsigned integer) and passing sr_skb to
usbnet_skb_return.

Fixes: e9da0b56fe27 ("sr9700: sanity check for packet length")
Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Link: https://lore.kernel.org/r/20230114182326.30479-1-szymon.heidrich@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

l2tp: close all race conditions in l2tp_tunnel_register()

[ Upstream commit 0b2c59720e65885a394a017d0cf9cab118914682 ]

The code in l2tp_tunnel_register() is racy in several ways:

1. It modifies the tunnel socket _after_ publishing it.

2. It calls setup_udp_tunnel_sock() on an existing socket without
   locking.

3. It changes sock lock class on fly, which triggers many syzbot
   reports.

This patch amends all of them by moving socket initialization code
before publishing and under sock lock. As suggested by Jakub, the
l2tp lockdep class is not necessary as we can just switch to
bh_lock_sock_nested().

Fixes: 37159ef2c1ae ("l2tp: fix a lockdep splat")
Fixes: 6b9f34239b00 ("l2tp: fix races in tunnel creation")
Reported-by: syzbot+52866e24647f9a23403f@syzkaller.appspotmail.com
Reported-by: syzbot+94cc2a66fc228b23f360@syzkaller.appspotmail.com
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Guillaume Nault <gnault@redhat.com>
Cc: Jakub Sitnicki <jakub@cloudflare.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Tom Parkin <tparkin@katalix.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

l2tp: convert l2tp_tunnel_list to idr

[ Upstream commit c4d48a58f32c5972174a1d01c33b296fe378cce0 ]

l2tp uses l2tp_tunnel_list to track all registered tunnels and
to allocate tunnel ID's. IDR can do the same job.

More importantly, with IDR we can hold the ID before a successful
registration so that we don't need to worry about late error
handling, it is not easy to rollback socket changes.

This is a preparation for the following fix.

Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Guillaume Nault <gnault@redhat.com>
Cc: Jakub Sitnicki <jakub@cloudflare.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Tom Parkin <tparkin@katalix.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 0b2c59720e65 ("l2tp: close all race conditions in l2tp_tunnel_register()")
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/sched: sch_taprio: fix possible use-after-free

[ Upstream commit 3a415d59c1dbec9d772dbfab2d2520d98360caae ]

syzbot reported a nasty crash [1] in net_tx_action() which
made little sense until we got a repro.

This repro installs a taprio qdisc, but providing an
invalid TCA_RATE attribute.

qdisc_create() has to destroy the just initialized
taprio qdisc, and taprio_destroy() is called.

However, the hrtimer used by taprio had already fired,
therefore advance_sched() called __netif_schedule().

Then net_tx_action was trying to use a destroyed qdisc.

We can not undo the __netif_schedule(), so we must wait
until one cpu serviced the qdisc before we can proceed.

Many thanks to Alexander Potapenko for his help.

[1]
BUG: KMSAN: uninit-value in queued_spin_trylock include/asm-generic/qspinlock.h:94 [inline]
BUG: KMSAN: uninit-value in do_raw_spin_trylock include/linux/spinlock.h:191 [inline]
BUG: KMSAN: uninit-value in __raw_spin_trylock include/linux/spinlock_api_smp.h:89 [inline]
BUG: KMSAN: uninit-value in _raw_spin_trylock+0x92/0xa0 kernel/locking/spinlock.c:138
 queued_spin_trylock include/asm-generic/qspinlock.h:94 [inline]
 do_raw_spin_trylock include/linux/spinlock.h:191 [inline]
 __raw_spin_trylock include/linux/spinlock_api_smp.h:89 [inline]
 _raw_spin_trylock+0x92/0xa0 kernel/locking/spinlock.c:138
 spin_trylock include/linux/spinlock.h:359 [inline]
 qdisc_run_begin include/net/sch_generic.h:187 [inline]
 qdisc_run+0xee/0x540 include/net/pkt_sched.h:125
 net_tx_action+0x77c/0x9a0 net/core/dev.c:5086
 __do_softirq+0x1cc/0x7fb kernel/softirq.c:571
 run_ksoftirqd+0x2c/0x50 kernel/softirq.c:934
 smpboot_thread_fn+0x554/0x9f0 kernel/smpboot.c:164
 kthread+0x31b/0x430 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:732 [inline]
 slab_alloc_node mm/slub.c:3258 [inline]
 __kmalloc_node_track_caller+0x814/0x1250 mm/slub.c:4970
 kmalloc_reserve net/core/skbuff.c:358 [inline]
 __alloc_skb+0x346/0xcf0 net/core/skbuff.c:430
 alloc_skb include/linux/skbuff.h:1257 [inline]
 nlmsg_new include/net/netlink.h:953 [inline]
 netlink_ack+0x5f3/0x12b0 net/netlink/af_netlink.c:2436
 netlink_rcv_skb+0x55d/0x6c0 net/netlink/af_netlink.c:2507
 rtnetlink_rcv+0x30/0x40 net/core/rtnetlink.c:6108
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0xabc/0xe90 net/socket.c:2482
 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2536
 __sys_sendmsg net/socket.c:2565 [inline]
 __do_sys_sendmsg net/socket.c:2574 [inline]
 __se_sys_sendmsg net/socket.c:2572 [inline]
 __x64_sys_sendmsg+0x367/0x540 net/socket.c:2572
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 6.0.0-rc2-syzkaller-47461-gac3859c02d7f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022

Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: stmmac: Fix queue statistics reading

[ Upstream commit c296c77efb66994d94d9f706446a115581226550 ]

Correct queue statistics reading. All queue statistics are stored as unsigned
long values. The retrieval for ethtool fetches these values as u64. However, on
some systems the size of the counters are 32 bit. That yields wrong queue
statistic counters e.g., on arm32 systems such as the stm32mp157. Fix it by
using the correct data type.

Tested on Olimex STMP157-OLinuXino-LIME2 by simple running linuxptp for a short
period of time:

Non-patched kernel:
|root@st1:~# ethtool -S eth0 | grep q0
|     q0_tx_pkt_n: 3775276254951 # ???
|     q0_tx_irq_n: 879
|     q0_rx_pkt_n: 1194000908909 # ???
|     q0_rx_irq_n: 278

Patched kernel:
|root@st1:~# ethtool -S eth0 | grep q0
|     q0_tx_pkt_n: 2434
|     q0_tx_irq_n: 1274
|     q0_rx_pkt_n: 1604
|     q0_rx_irq_n: 846

Fixes: 68e9c5dee1cf ("net: stmmac: add ethtool per-queue statistic framework")
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Cc: Vijayakannan Ayyathurai <vijayakannan.ayyathurai@intel.com>
Cc: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

pinctrl: rockchip: fix reading pull type on rk3568

[ Upstream commit 31b62a98de42cf65d76e4dcfb571af067d27d83a ]

When reading pinconf-pins from debugfs it fails to get the configured pull
type on RK3568, "unsupported pinctrl type" error messages is also reported.

Fix this by adding support for RK3568 in rockchip_get_pull, including a
reverse of the pull-up value swap applied in rockchip_set_pull so that
pull-up is correctly reported in pinconf-pins.
Also update the workaround comment to reflect affected pins, GPIO0_D3-D6.

Fixes: c0dadc0e47a8 ("pinctrl: rockchip: add support for rk3568")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Jianqun Xu <jay.xu@rock-chips.com>
Link: https://lore.kernel.org/r/20230110172955.1258840-1-jonas@kwiboo.se
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

wifi: rndis_wlan: Prevent buffer overflow in rndis_query_oid

[ Upstream commit b870e73a56c4cccbec33224233eaf295839f228c ]

Since resplen and respoffs are signed integers sufficiently
large values of unsigned int len and offset members of RNDIS
response will result in negative values of prior variables.
This may be utilized to bypass implemented security checks
to either extract memory contents by manipulating offset or
overflow the data buffer via memcpy by manipulating both
offset and len.

Additionally assure that sum of resplen and respoffs does not
overflow so buffer boundaries are kept.

Fixes: 80f8c5b434f9 ("rndis_wlan: copy only useful data from rndis_command respond")
Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230111175031.7049-1-szymon.heidrich@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

gpio: mxc: Always set GPIOs used as interrupt source to INPUT mode

[ Upstream commit 8e88a0feebb241cab0253698b2f7358b6ebec802 ]

Always configure GPIO pins which are used as interrupt source as INPUTs.
In case the default pin configuration is OUTPUT, or the prior stage does
configure the pins as OUTPUT, then Linux will not reconfigure the pin as
INPUT and no interrupts are received.

Always configure the interrupt source GPIO pin as input to fix the above case.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Fixes: 07bd1a6cc7cbb ("MXC arch: Add gpio support for the whole platform")
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

gpio: mxc: Protect GPIO irqchip RMW with bgpio spinlock

[ Upstream commit e5464277625c1aca5c002e0f470377cdd6816dcf ]

The driver currently performs register read-modify-write without locking
in its irqchip part, this could lead to a race condition when configuring
interrupt mode setting. Add the missing bgpio spinlock lock/unlock around
the register read-modify-write.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Fixes: 07bd1a6cc7cbb ("MXC arch: Add gpio support for the whole platform")
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

sch_htb: Avoid grafting on htb_destroy_class_offload when destroying htb

[ Upstream commit a22b7388d658ecfcd226600c8c34ce4481e88655 ]

Peek at old qdisc and graft only when deleting a leaf class in the htb,
rather than when deleting the htb itself. Do not peek at the qdisc of the
netdev queue when destroying the htb. The caller may already have grafted a
new qdisc that is not part of the htb structure being destroyed.

This fix resolves two use cases.

  1. Using tc to destroy the htb.
    - Netdev was being prematurely activated before the htb was fully
      destroyed.
  2. Using tc to replace the htb with another qdisc (which also leads to
     the htb being destroyed).
    - Premature netdev activation like previous case. Newly grafted qdisc
      was also getting accidentally overwritten when destroying the htb.

Fixes: d03b195b5aa0 ("sch_htb: Hierarchical QoS hardware offload")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230113005528.302625-1-rrameshbabu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: lan966x: add missing fwnode_handle_put() for ports node

[ Upstream commit 925f3deb45df73173a33e1e81db77575f4ffde39 ]

Since the "ethernet-ports" node is retrieved using
device_get_named_child_node(), it should be release after using it. Add
missing fwnode_handle_put() and move the code that retrieved the node
from device-tree to avoid complicated handling in case of error.

Fixes: db8bcaad5393 ("net: lan966x: add the basic lan966x driver")
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230112161311.495124-1-clement.leger@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: enetc: avoid deadlock in enetc_tx_onestep_tstamp()

[ Upstream commit 3c463721a73bdb57a913e0d3124677a3758886fc ]

This lockdep splat says it better than I could:

================================
WARNING: inconsistent lock state
6.2.0-rc2-07010-ga9b9500ffaac-dirty #967 Not tainted
--------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
kworker/1:3/179 [HC0[0]:SC0[0]:HE1:SE1] takes:
ffff3ec4036ce098 (_xmit_ETHER#2){+.?.}-{3:3}, at: netif_freeze_queues+0x5c/0xc0
{IN-SOFTIRQ-W} state was registered at:
  _raw_spin_lock+0x5c/0xc0
  sch_direct_xmit+0x148/0x37c
  __dev_queue_xmit+0x528/0x111c
  ip6_finish_output2+0x5ec/0xb7c
  ip6_finish_output+0x240/0x3f0
  ip6_output+0x78/0x360
  ndisc_send_skb+0x33c/0x85c
  ndisc_send_rs+0x54/0x12c
  addrconf_rs_timer+0x154/0x260
  call_timer_fn+0xb8/0x3a0
  __run_timers.part.0+0x214/0x26c
  run_timer_softirq+0x3c/0x74
  __do_softirq+0x14c/0x5d8
  ____do_softirq+0x10/0x20
  call_on_irq_stack+0x2c/0x5c
  do_softirq_own_stack+0x1c/0x30
  __irq_exit_rcu+0x168/0x1a0
  irq_exit_rcu+0x10/0x40
  el1_interrupt+0x38/0x64
irq event stamp: 7825
hardirqs last  enabled at (7825): [<ffffdf1f7200cae4>] exit_to_kernel_mode+0x34/0x130
hardirqs last disabled at (7823): [<ffffdf1f708105f0>] __do_softirq+0x550/0x5d8
softirqs last  enabled at (7824): [<ffffdf1f7081050c>] __do_softirq+0x46c/0x5d8
softirqs last disabled at (7811): [<ffffdf1f708166e0>] ____do_softirq+0x10/0x20

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(_xmit_ETHER#2);
  <Interrupt>
    lock(_xmit_ETHER#2);

 *** DEADLOCK ***

3 locks held by kworker/1:3/179:
 #0: ffff3ec400004748 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1f4/0x6c0
 #1: ffff80000a0bbdc8 ((work_completion)(&priv->tx_onestep_tstamp)){+.+.}-{0:0}, at: process_one_work+0x1f4/0x6c0
 #2: ffff3ec4036cd438 (&dev->tx_global_lock){+.+.}-{3:3}, at: netif_tx_lock+0x1c/0x34

Workqueue: events enetc_tx_onestep_tstamp
Call trace:
 print_usage_bug.part.0+0x208/0x22c
 mark_lock+0x7f0/0x8b0
 __lock_acquire+0x7c4/0x1ce0
 lock_acquire.part.0+0xe0/0x220
 lock_acquire+0x68/0x84
 _raw_spin_lock+0x5c/0xc0
 netif_freeze_queues+0x5c/0xc0
 netif_tx_lock+0x24/0x34
 enetc_tx_onestep_tstamp+0x20/0x100
 process_one_work+0x28c/0x6c0
 worker_thread+0x74/0x450
 kthread+0x118/0x11c

but I'll say it anyway: the enetc_tx_onestep_tstamp() work item runs in
process context, therefore with softirqs enabled (i.o.w., it can be
interrupted by a softirq). If we hold the netif_tx_lock() when there is
an interrupt, and the NET_TX softirq then gets scheduled, this will take
the netif_tx_lock() a second time and deadlock the kernel.

To solve this, use netif_tx_lock_bh(), which blocks softirqs from
running.

Fixes: 7294380c5211 ("enetc: support PTP Sync packet one-step timestamping")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230112105440.1786799-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: wan: Add checks for NULL for utdm in undo_uhdlc_init and unmap_si_regs

[ Upstream commit 488e0bf7f34af3d42d1d5e56f7a5a7beaff188a3 ]

If uhdlc_priv_tsa != 1 then utdm is not initialized.
And if ret != NULL then goto undo_uhdlc_init, where
utdm is dereferenced. Same if dev == NULL.

Found by Astra Linux on behalf of Linux Verification Center
(linuxtesting.org) with SVACE.

Fixes: 8d68100ab4ad ("soc/fsl/qe: fix err handling of ucc_of_parse_tdm")
Signed-off-by: Esina Ekaterina <eesina@astralinux.ru>
Link: https://lore.kernel.org/r/20230112074703.13558-1-eesina@astralinux.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: nfc: Fix use-after-free in local_cleanup()

[ Upstream commit 4bb4db7f3187c6e3de6b229ffc87cdb30a2d22b6 ]

Fix a use-after-free that occurs in kfree_skb() called from
local_cleanup(). This could happen when killing nfc daemon (e.g. neard)
after detaching an nfc device.
When detaching an nfc device, local_cleanup() called from
nfc_llcp_unregister_device() frees local->rx_pending and decreases
local->ref by kref_put() in nfc_llcp_local_put().
In the terminating process, nfc daemon releases all sockets and it leads
to decreasing local->ref. After the last release of local->ref,
local_cleanup() called from local_release() frees local->rx_pending
again, which leads to the bug.

Setting local->rx_pending to NULL in local_cleanup() could prevent
use-after-free when local_cleanup() is called twice.

Found by a modified version of syzkaller.

BUG: KASAN: use-after-free in kfree_skb()

Call Trace:
dump_stack_lvl (lib/dump_stack.c:106)
print_address_description.constprop.0.cold (mm/kasan/report.c:306)
kasan_check_range (mm/kasan/generic.c:189)
kfree_skb (net/core/skbuff.c:955)
local_cleanup (net/nfc/llcp_core.c:159)
nfc_llcp_local_put.part.0 (net/nfc/llcp_core.c:172)
nfc_llcp_local_put (net/nfc/llcp_core.c:181)
llcp_sock_destruct (net/nfc/llcp_sock.c:959)
__sk_destruct (net/core/sock.c:2133)
sk_destruct (net/core/sock.c:2181)
__sk_free (net/core/sock.c:2192)
sk_free (net/core/sock.c:2203)
llcp_sock_release (net/nfc/llcp_sock.c:646)
__sock_release (net/socket.c:650)
sock_close (net/socket.c:1365)
__fput (fs/file_table.c:306)
task_work_run (kernel/task_work.c:179)
ptrace_notify (kernel/signal.c:2354)
syscall_exit_to_user_mode_prepare (kernel/entry/common.c:278)
syscall_exit_to_user_mode (kernel/entry/common.c:296)
do_syscall_64 (arch/x86/entry/common.c:86)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:106)

Allocated by task 4719:
kasan_save_stack (mm/kasan/common.c:45)
__kasan_slab_alloc (mm/kasan/common.c:325)
slab_post_alloc_hook (mm/slab.h:766)
kmem_cache_alloc_node (mm/slub.c:3497)
__alloc_skb (net/core/skbuff.c:552)
pn533_recv_response (drivers/nfc/pn533/usb.c:65)
__usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1671)
usb_giveback_urb_bh (drivers/usb/core/hcd.c:1704)
tasklet_action_common.isra.0 (kernel/softirq.c:797)
__do_softirq (kernel/softirq.c:571)

Freed by task 1901:
kasan_save_stack (mm/kasan/common.c:45)
kasan_set_track (mm/kasan/common.c:52)
kasan_save_free_info (mm/kasan/genericdd.c:518)
__kasan_slab_free (mm/kasan/common.c:236)
kmem_cache_free (mm/slub.c:3809)
kfree_skbmem (net/core/skbuff.c:874)
kfree_skb (net/core/skbuff.c:931)
local_cleanup (net/nfc/llcp_core.c:159)
nfc_llcp_unregister_device (net/nfc/llcp_core.c:1617)
nfc_unregister_device (net/nfc/core.c:1179)
pn53x_unregister_nfc (drivers/nfc/pn533/pn533.c:2846)
pn533_usb_disconnect (drivers/nfc/pn533/usb.c:579)
usb_unbind_interface (drivers/usb/core/driver.c:458)
device_release_driver_internal (drivers/base/dd.c:1279)
bus_remove_device (drivers/base/bus.c:529)
device_del (drivers/base/core.c:3665)
usb_disable_device (drivers/usb/core/message.c:1420)
usb_disconnect (drivers/usb/core.c:2261)
hub_event (drivers/usb/core/hub.c:5833)
process_one_work (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:212 include/trace/events/workqueue.h:108 kernel/workqueue.c:2281)
worker_thread (include/linux/list.h:282 kernel/workqueue.c:2423)
kthread (kernel/kthread.c:319)
ret_from_fork (arch/x86/entry/entry_64.S:301)

Fixes: 3536da06db0b ("NFC: llcp: Clean local timers and works when removing a device")
Signed-off-by: Jisoo Jang <jisoo.jang@yonsei.ac.kr>
Link: https://lore.kernel.org/r/20230111131914.3338838-1-jisoo.jang@yonsei.ac.kr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

phy: rockchip-inno-usb2: Fix missing clk_disable_unprepare() in rockchip_usb2phy_power_on()

[ Upstream commit 5daba914da0e48950e9407ea4d75fa57029c9adc ]

The clk_disable_unprepare() should be called in the error handling of
rockchip_usb2phy_power_on().

Fixes: 0e08d2a727e6 ("phy: rockchip-inno-usb2: add a new driver for Rockchip usb2phy")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20221205115823.16957-1-shangxiaojing@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/vc4: bo: Fix unused variable warning

[ Upstream commit 83a7f8e4899fb4cd77c787a3373f3e82b49a080f ]

Commit 07a2975c65f2 ("drm/vc4: bo: Fix drmm_mutex_init memory hog")
removed the only use of the ret variable, but didn't remove the
variable itself leading to a unused variable warning.

Remove that variable.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 07a2975c65f2 ("drm/vc4: bo: Fix drmm_mutex_init memory hog")
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230113154637.1704116-1-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>

bpf: Fix pointer-leak due to insufficient speculative store bypass mitigation

[ Upstream commit e4f4db47794c9f474b184ee1418f42e6a07412b6 ]

To mitigate Spectre v4, 2039f26f3aca ("bpf: Fix leakage due to
insufficient speculative store bypass mitigation") inserts lfence
instructions after 1) initializing a stack slot and 2) spilling a
pointer to the stack.

However, this does not cover cases where a stack slot is first
initialized with a pointer (subject to sanitization) but then
overwritten with a scalar (not subject to sanitization because
the slot was already initialized). In this case, the second write
may be subject to speculative store bypass (SSB) creating a
speculative pointer-as-scalar type confusion. This allows the
program to subsequently leak the numerical pointer value using,
for example, a branch-based cache side channel.

To fix this, also sanitize scalars if they write a stack slot
that previously contained a pointer. Assuming that pointer-spills
are only generated by LLVM on register-pressure, the performance
impact on most real-world BPF programs should be small.

The following unprivileged BPF bytecode drafts a minimal exploit
and the mitigation:

  [...]
  // r6 = 0 or 1 (skalar, unknown user input)
  // r7 = accessible ptr for side channel
  // r10 = frame pointer (fp), to be leaked
  //
  r9 = r10 # fp alias to encourage ssb
  *(u64 *)(r9 - 8) = r10 // fp[-8] = ptr, to be leaked
  // lfence added here because of pointer spill to stack.
  //
  // Ommitted: Dummy bpf_ringbuf_output() here to train alias predictor
  // for no r9-r10 dependency.
  //
  *(u64 *)(r10 - 8) = r6 // fp[-8] = scalar, overwrites ptr
  // 2039f26f3aca: no lfence added because stack slot was not STACK_INVALID,
  // store may be subject to SSB
  //
  // fix: also add an lfence when the slot contained a ptr
  //
  r8 = *(u64 *)(r9 - 8)
  // r8 = architecturally a scalar, speculatively a ptr
  //
  // leak ptr using branch-based cache side channel:
  r8 &= 1 // choose bit to leak
  if r8 == 0 goto SLOW // no mispredict
  // architecturally dead code if input r6 is 0,
  // only executes speculatively iff ptr bit is 1
  r8 = *(u64 *)(r7 + 0) # encode bit in cache (0: slow, 1: fast)
SLOW:
  [...]

After running this, the program can time the access to *(r7 + 0) to
determine whether the chosen pointer bit was 0 or 1. Repeat this 64
times to recover the whole address on amd64.

In summary, sanitization can only be skipped if one scalar is
overwritten with another scalar. Scalar-confusion due to speculative
store bypass can not lead to invalid accesses because the pointer
bounds deducted during verification are enforced using branchless
logic. See 979d63d50c0c ("bpf: prevent out of bounds speculation on
pointer arithmetic") for details.

Do not make the mitigation depend on !env->allow_{uninit_stack,ptr_leaks}
because speculative leaks are likely unexpected if these were enabled.
For example, leaking the address to a protected log file may be acceptable
while disabling the mitigation might unintentionally leak the address
into the cached-state of a map that is accessible to unprivileged
processes.

Fixes: 2039f26f3aca ("bpf: Fix leakage due to insufficient speculative store bypass mitigation")
Signed-off-by: Luis Gerhorst <gerhorst@cs.fau.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Henriette Hofmeier <henriette.hofmeier@rub.de>
Link: https://lore.kernel.org/bpf/edc95bad-aada-9cfc-ffe2-fa9bb206583c@cs.fau.de
Link: https://lore.kernel.org/bpf/20230109150544.41465-1-gerhorst@cs.fau.de
Signed-off-by: Sasha Levin <sashal@kernel.org>

amd-xgbe: Delay AN timeout during KR training

[ Upstream commit 926446ae24c03311a480fb96eb78f0ce7ea6d091 ]

AN restart triggered during KR training not only aborts the KR training
process but also move the HW to unstable state. Driver has to wait upto
500ms or until the KR training is completed before restarting AN cycle.

Fixes: 7c12aa08779c ("amd-xgbe: Move the PHY support into amd-xgbe")
Co-developed-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

amd-xgbe: TX Flow Ctrl Registers are h/w ver dependent

[ Upstream commit 579923d84b04abb6cd4cd1fd9974096a2dd1832b ]

There is difference in the TX Flow Control registers (TFCR) between the
revisions of the hardware. The older revisions of hardware used to have
single register per queue. Whereas, the newer revision of hardware (from
ver 30H onwards) have one register per priority.

Update the driver to use the TFCR based on the reported version of the
hardware.

Fixes: c5aa9e3b8156 ("amd-xgbe: Initial AMD 10GbE platform driver")
Co-developed-by: Ajith Nayak <Ajith.Nayak@amd.com>
Signed-off-by: Ajith Nayak <Ajith.Nayak@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

bpf: hash map, avoid deadlock with suitable hash mask

[ Upstream commit 9f907439dc80e4a2fcfb949927b36c036468dbb3 ]

The deadlock still may occur while accessed in NMI and non-NMI
context. Because in NMI, we still may access the same bucket but with
different map_locked index.

For example, on the same CPU, .max_entries = 2, we update the hash map,
with key = 4, while running bpf prog in NMI nmi_handle(), to update
hash map with key = 20, so it will have the same bucket index but have
different map_locked index.

To fix this issue, using min mask to hash again.

Fixes: 20b6cc34ea74 ("bpf: Avoid hashtab deadlock with map_locked")
Signed-off-by: Tonghao Zhang <tong@infragraf.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Song Liu <song@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Stanislav Fomichev <sdf@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20230111092903.92389-1-tong@infragraf.org
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

phy: usb: sunplus: Fix potential null-ptr-deref in sp_usb_phy_probe()

[ Upstream commit 17eee264ef386ef30a69dd70e36f29893b85c170 ]

sp_usb_phy_probe() will call platform_get_resource_byname() that may fail
and return NULL. devm_ioremap() will use usbphy->moon4_res_mem->start as
input, which may causes null-ptr-deref. Check the ret value of
platform_get_resource_byname() to avoid the null-ptr-deref.

Fixes: 99d9ccd97385 ("phy: usb: Add USB2.0 phy driver for Sunplus SP7021")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20221125021222.25687-1-shangxiaojing@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/vc4: bo: Fix drmm_mutex_init memory hog

[ Upstream commit 07a2975c65f2be2e22591d795a9c39b00f95fd11 ]

Commit 374146cad469 ("drm/vc4: Switch to drmm_mutex_init") converted,
among other functions, vc4_create_object() to use drmm_mutex_init().

However, that function is used to allocate a BO, and therefore the
mutex needs to be freed much sooner than when the DRM device is removed
from the system.

For each buffer allocation we thus end up allocating a small structure
as part of the DRM-managed mechanism that is never freed, eventually
leading us to no longer having any free memory anymore.

Let's switch back to mutex_init/mutex_destroy to deal with it properly.

Fixes: 374146cad469 ("drm/vc4: Switch to drmm_mutex_init")
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230112091243.490799-1-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: at91: sam9x60: fix the ddr clock for sam9x60

[ Upstream commit 9bfa2544dbd1133f0b0af4e967de3bb9c1e3a497 ]

The 2nd DDR clock for sam9x60 DDR controller is peripheral clock with
id 49.

Fixes: 1e5f532c2737 ("ARM: dts: at91: sam9x60: add device tree for soc and board")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221208115241.36312-1-claudiu.beznea@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

NFSD: fix use-after-free in nfsd4_ssc_setup_dul()

[ Upstream commit e6cf91b7b47ff82b624bdfe2fdcde32bb52e71dd ]

If signal_pending() returns true, schedule_timeout() will not be executed,
causing the waiting task to remain in the wait queue.
Fixed by adding a call to finish_wait(), which ensures that the waiting
task will always be removed from the wait queue.

Fixes: f4e44b393389 ("NFSD: delay unmount source's export after inter-server copy completed.")
Signed-off-by: Xingyuan Mo <hdthky0@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/msm/gpu: Fix potential double-free

[ Upstream commit a66f1efcf748febea7758c4c3c8b5bc5294949ef ]

If userspace was calling the MSM_SET_PARAM ioctl on multiple threads to
set the COMM or CMDLINE param, it could trigger a race causing the
previous value to be kfree'd multiple times.  Fix this by serializing on
the gpu lock.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Fixes: d4726d770068 ("drm/msm: Add a way to override processes comm/cmdline")
Patchwork: https://patchwork.freedesktop.org/patch/517778/
Link: https://lore.kernel.org/r/20230110212903.1925878-1-robdclark@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

phy: ti: fix Kconfig warning and operator precedence

[ Upstream commit 7124c93887cc4e6c5b48920f83115e4a5892e870 ]

Fix Kconfig depends operator precedence to prevent a Kconfig warning:

WARNING: unmet direct dependencies detected for MUX_MMIO
  Depends on [n]: MULTIPLEXER [=m] && OF [=n]
  Selected by [m]:
  - PHY_AM654_SERDES [=m] && (OF [=n] && ARCH_K3 || COMPILE_TEST [=y]) && COMMON_CLK [=y]

Fixes: 71e2f5c5c224 ("phy: ti: Add a new SERDES driver for TI's AM654x SoC")
Fixes: 091876cc355d ("phy: ti: j721e-wiz: Add support for WIZ module present in TI J721E SoC")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Kishon Vijay Abraham I <kishon@kernel.org>
Cc: linux-phy@lists.infradead.org
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230110062529.22668-1-rdunlap@infradead.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

kbuild: fix 'make modules' error when CONFIG_DEBUG_INFO_BTF_MODULES=y

[ Upstream commit 74d3320f6f7cf72de88a7e8df573821f6db90239 ]

When CONFIG_DEBUG_INFO_BTF_MODULES=y, running 'make modules'
in the clean kernel tree will get the following error.

  $ grep CONFIG_DEBUG_INFO_BTF_MODULES .config
  CONFIG_DEBUG_INFO_BTF_MODULES=y
  $ make -s clean
  $ make modules
    [snip]
    AR      vmlinux.a
  ar: ./built-in.a: No such file or directory
  make: *** [Makefile:1241: vmlinux.a] Error 1

'modules' depends on 'vmlinux', but builtin objects are not built.

Define KBUILD_BUILTIN.

Fixes: f73edc8951b2 ("kbuild: unify two modpost invocations")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

kbuild: export top-level LDFLAGS_vmlinux only to scripts/Makefile.vmlinux

[ Upstream commit 8debed3efe3a731451ad9a91a7a74eeb18a7f7eb ]

Nathan Chancellor reports that $(NM) emits an error message when
GNU Make 4.4 is used to build the ARM zImage.

  $ make-4.4 ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- O=build defconfig zImage
    [snip]
    LD      vmlinux
    NM      System.map
    SORTTAB vmlinux
    OBJCOPY arch/arm/boot/Image
    Kernel: arch/arm/boot/Image is ready
  arm-linux-gnueabi-nm: 'arch/arm/boot/compressed/../../../../vmlinux': No such file
  /bin/sh: 1: arithmetic expression: expecting primary: " "
    LDS     arch/arm/boot/compressed/vmlinux.lds
    AS      arch/arm/boot/compressed/head.o
    GZIP    arch/arm/boot/compressed/piggy_data
    AS      arch/arm/boot/compressed/piggy.o
    CC      arch/arm/boot/compressed/misc.o

This occurs since GNU Make commit 98da874c4303 ("[SV 10593] Export
variables to $(shell ...) commands"), and the O= option is needed to
reproduce it. The generated zImage is correct despite the error message.

As the commit description of 98da874c4303 [1] says, exported variables
are passed down to $(shell ) functions, which means exported recursive
variables might be expanded earlier than before, in the parse stage.

The following test code demonstrates the change for GNU Make 4.4.

[Test Makefile]

  $(shell echo hello > foo)
  export foo = $(shell cat bar/../foo)
  $(shell mkdir bar)

  all:
          @echo $(foo)

[GNU Make 4.3]

  $ rm -rf bar; make-4.3
  hello

[GNU Make 4.4]

  $ rm -rf bar; make-4.4
  cat: bar/../foo: No such file or directory
  hello

The 'foo' is a resursively expanded (i.e. lazily expanded) variable.

GNU Make 4.3 expands 'foo' just before running the recipe '@echo $(foo)',
at this point, the directory 'bar' exists.

GNU Make 4.4 expands 'foo' to evaluate $(shell mkdir bar) because it is
exported. At this point, the directory 'bar' does not exit yet. The cat
command cannot resolve the bar/../foo path, hence the error message.

Let's get back to the kernel Makefile.

In arch/arm/boot/compressed/Makefile, KBSS_SZ is referenced by
LDFLAGS_vmlinux, which is recursive and also exported by the top
Makefile.

GNU Make 4.3 expands KBSS_SZ just before running the recipes, so no
error message.

GNU Make 4.4 expands KBSS_SZ in the parse stage, where the directory
arm/arm/boot/compressed does not exit yet. When compiled with O=,
the output directory is created by $(shell mkdir -p $(obj-dirs))
in scripts/Makefile.build.

There are two ways to fix this particular issue:

 - change "$(obj)/../../../../vmlinux" in KBSS_SZ to "vmlinux"
 - unexport LDFLAGS_vmlinux

This commit takes the latter course because it is what I originally
intended.

Commit 3ec8a5b33dea ("kbuild: do not export LDFLAGS_vmlinux")
unexported LDFLAGS_vmlinux.

Commit 5d4aeffbf709 ("kbuild: rebuild .vmlinux.export.o when its
prerequisite is updated") accidentally exported it again.

We can clean up arch/arm/boot/compressed/Makefile later.

[1]: https://git.savannah.gnu.org/cgit/make.git/commit/?id=98da874c43035a490cdca81331724f233a3d0c9a

Link: https://lore.kernel.org/all/Y7i8+EjwdnhHtlrr@dev-arch.thelio-3990X/
Fixes: 5d4aeffbf709 ("kbuild: rebuild .vmlinux.export.o when its prerequisite is updated")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: qcom: msm8992-libra: Fix the memory map

[ Upstream commit 69876bc6fd4de3ad2dc7826fe269e91fa2c1807f ]

The memory map was wrong. Fix it to prevent the device from randomly
rebooting.

Fixes: 0f5cdb31e850 ("arm64: dts: qcom: Add Xiaomi Libra (Mi 4C) device tree")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221219131918.446587-2-konrad.dybcio@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: qcom: msm8992: Don't use sfpb mutex

[ Upstream commit 2bd5ab93335bf2c4d22c8db427822ae637ed8dc3 ]

MSM8992 uses the same mutex hardware as MSM8994. This was wrong
from the start, but never presented as an issue until the sfpb
compatible was given different driver data.

Fixes: 6a6d1978f9c0 ("arm64: dts: msm8992 SoC and LG Bullhead (Nexus 5X) support")
Reported-by: Eugene Lepshy <fekz115@gmail.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221219131918.446587-1-konrad.dybcio@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

PM: AVS: qcom-cpr: Fix an error handling path in cpr_probe()

[ Upstream commit 6049aae52392539e505bfb8ccbcff3c26f1d2f0b ]

If an error occurs after a successful pm_genpd_init() call, it should be
undone by a corresponding pm_genpd_remove().

Add the missing call in the error handling path, as already done in the
remove function.

Fixes: bf6910abf548 ("power: avs: Add support for CPR (Core Power Reduction)")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/0f520597dbad89ab99c217c8986912fa53eaf5f9.1671293108.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>

affs: initialize fsdata in affs_truncate()

[ Upstream commit eef034ac6690118c88f357b00e2b3239c9d8575d ]

When aops->write_begin() does not initialize fsdata, KMSAN may report
an error passing the latter to aops->write_end().

Fix this by unconditionally initializing fsdata.

Fixes: f2b6a16eb8f5 ("fs: affs convert to new aops")
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Alexander Potapenko <glider@google.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

IB/hfi1: Remove user expected buffer invalidate race

[ Upstream commit b3deec25847bda34e34d5d7be02f633caf000bd8 ]

During setup, there is a possible race between a page invalidate
and hardware programming.  Add a covering invalidate over the user
target range during setup.  If anything within that range is
invalidated during setup, fail the setup.  Once set up, each
TID will have its own invalidate callback and invalidate.

Fixes: 3889551db212 ("RDMA/hfi1: Use mmu_interval_notifier_insert for user_exp_rcv")
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/167328549178.1472310.9867497376936699488.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

IB/hfi1: Immediately remove invalid memory from hardware

[ Upstream commit 1c7edde1b5720ddb0aff5ca8c7f605a0f92526eb ]

When a user expected receive page is unmapped, it should be
immediately removed from hardware rather than depend on a
reaction from user space.

Fixes: 2677a7680e77 ("IB/hfi1: Fix memory leak during unexpected shutdown")
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/167328548663.1472310.7871808081861622659.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

IB/hfi1: Fix expected receive setup error exit issues

[ Upstream commit e0c4a422f5246abefbf7c178ef99a1f2dc3c5f62 ]

Fix three error exit issues in expected receive setup.
Re-arrange error exits to increase readability.

Issues and fixes:
1. Possible missed page unpin if tidlist copyout fails and
   not all pinned pages where made part of a TID.
   Fix: Unpin the unused pages.

2. Return success with unset return values tidcnt and length
   when no pages were pinned.
   Fix: Return -ENOSPC if no pages were pinned.

3. Return success with unset return values tidcnt and length when
   no rcvarray entries available.
   Fix: Return -ENOSPC if no rcvarray entries are available.

Fixes: 7e7a436ecb6e ("staging/hfi1: Add TID entry program function body")
Fixes: 97736f36dbeb ("IB/hfi1: Validate page aligned for a given virtual addres")
Fixes: f404ca4c7ea8 ("IB/hfi1: Refactor hfi_user_exp_rcv_setup() IOCTL")
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/167328548150.1472310.1492305874804187634.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

IB/hfi1: Reserve user expected TIDs

[ Upstream commit ecf91551cdd2925ed6d9a9d99074fa5f67b90596 ]

To avoid a race, reserve the number of user expected
TIDs before setup.

Fixes: 7e7a436ecb6e ("staging/hfi1: Add TID entry program function body")
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/167328547636.1472310.7419712824785353905.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

IB/hfi1: Reject a zero-length user expected buffer

[ Upstream commit 0a0a6e80472c98947d73c3d13bcd7d101895f55d ]

A zero length user buffer makes no sense and the code
does not handle it correctly.  Instead, reject a
zero length as invalid.

Fixes: 97736f36dbeb ("IB/hfi1: Validate page aligned for a given virtual addres")
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/167328547120.1472310.6362802432127399257.stgit@awfm-02.cornelisnetworks.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

RDMA/core: Fix ib block iterator counter overflow

[ Upstream commit 0afec5e9cea732cb47014655685a2a47fb180c31 ]

When registering a new DMA MR after selecting the best aligned page size
for it, we iterate over the given sglist to split each entry to smaller,
aligned to the selected page size, DMA blocks.

In given circumstances where the sg entry and page size fit certain
sizes and the sg entry is not aligned to the selected page size, the
total size of the aligned pages we need to cover the sg entry is >= 4GB.
Under this circumstances, while iterating page aligned blocks, the
counter responsible for counting how much we advanced from the start of
the sg entry is overflowed because its type is u32 and we pass 4GB in
size. This can lead to an infinite loop inside the iterator function
because the overflow prevents the counter to be larger
than the size of the sg entry.

Fix the presented problem by changing the advancement condition to
eliminate overflow.

Backtrace:
[  192.374329] efa_reg_user_mr_dmabuf
[  192.376783] efa_register_mr
[  192.382579] pgsz_bitmap 0xfffff000 rounddown 0x80000000
[  192.386423] pg_sz [0x80000000] umem_length[0xc0000000]
[  192.392657] start 0x0 length 0xc0000000 params.page_shift 31 params.page_num 3
[  192.399559] hp_cnt[3], pages_in_hp[524288]
[  192.403690] umem->sgt_append.sgt.nents[1]
[  192.407905] number entries: [1], pg_bit: [31]
[  192.411397] biter->__sg_nents [1] biter->__sg [0000000008b0c5d8]
[  192.415601] biter->__sg_advance [665837568] sg_dma_len[3221225472]
[  192.419823] biter->__sg_nents [1] biter->__sg [0000000008b0c5d8]
[  192.423976] biter->__sg_advance [2813321216] sg_dma_len[3221225472]
[  192.428243] biter->__sg_nents [1] biter->__sg [0000000008b0c5d8]
[  192.432397] biter->__sg_advance [665837568] sg_dma_len[3221225472]

Fixes: a808273a495c ("RDMA/verbs: Add a DMA iterator to return aligned contiguous memory blocks")
Signed-off-by: Yonatan Nachum <ynachum@amazon.com>
Link: https://lore.kernel.org/r/20230109133711.13678-1-ynachum@amazon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: marvell: AC5/AC5X: Fix address for UART1

[ Upstream commit 80502ffab2fa92ba9777e381efea2efddc348d13 ]

The correct address offset is 0x12100.

Fixes: 31be791e26cf ("arm64: dts: marvell: Add UART1-3 for AC5/AC5X")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

erofs: fix kvcalloc() misuse with __GFP_NOFAIL

[ Upstream commit 12724ba38992bd045e92a9a88a868a530f89d13e ]

As reported by syzbot [1], kvcalloc() cannot work with  __GFP_NOFAIL.
Let's use kcalloc() instead.

[1] https://lore.kernel.org/r/0000000000007796bd05f1852ec2@google.com

Reported-by: syzbot+c3729cda01706a04fb98@syzkaller.appspotmail.com
Fixes: fe3e5914e6dc ("erofs: try to leave (de)compressed_pages on stack if possible")
Fixes: 4f05687fd703 ("erofs: introduce struct z_erofs_decompress_backend")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230110074927.41651-1-hsiangkao@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

RDMA/rxe: Prevent faulty rkey generation

[ Upstream commit 1aefe5c177c1922119afb4ee443ddd6ac3140b37 ]

If you create MRs more than 0x10000 times after loading the module,
responder starts to reply NAKs for RDMA/Atomic operations because of rkey
violation detected in check_rkey(). The root cause is that rkeys are
incremented each time a new MR is created and the value overflows into the
range reserved for MWs.

This commit also increases the value of RXE_MAX_MW that has been limited
unlike other parameters.

Fixes: 0994a1bcd5f7 ("RDMA/rxe: Bump up default maximum values used via uverbs")
Link: https://lore.kernel.org/r/20221220080848.253785-2-matsuda-daisuke@fujitsu.com
Signed-off-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com>
Tested-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

RDMA/rxe: Fix inaccurate constants in rxe_type_info

[ Upstream commit 3a73746b267e5c6a87c9ad26f8c6a48e44da609c ]

ibv_query_device() has reported incorrect device attributes, which are
actually not used by the device. Make the constants correspond with the
attributes shown to users.

Fixes: 3ccffe8abf2f ("RDMA/rxe: Move max_elem into rxe_type_info")
Fixes: 3225717f6dfa ("RDMA/rxe: Replace red-black trees by xarrays")
Link: https://lore.kernel.org/r/20221220080848.253785-1-matsuda-daisuke@fujitsu.com
Signed-off-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

tomoyo: fix broken dependency on *.conf.default

[ Upstream commit eaf2213ba563b2d74a1f2c13a6b258273f689802 ]

If *.conf.default is updated, builtin-policy.h should be rebuilt,
but this does not work when compiled with O= option.

[Without this commit]

  $ touch security/tomoyo/policy/exception_policy.conf.default
  $ make O=/tmp security/tomoyo/
  make[1]: Entering directory '/tmp'
    GEN     Makefile
    CALL    /home/masahiro/ref/linux/scripts/checksyscalls.sh
    DESCEND objtool
  make[1]: Leaving directory '/tmp'

[With this commit]

  $ touch security/tomoyo/policy/exception_policy.conf.default
  $ make O=/tmp security/tomoyo/
  make[1]: Entering directory '/tmp'
    GEN     Makefile
    CALL    /home/masahiro/ref/linux/scripts/checksyscalls.sh
    DESCEND objtool
    POLICY  security/tomoyo/builtin-policy.h
    CC      security/tomoyo/common.o
    AR      security/tomoyo/built-in.a
  make[1]: Leaving directory '/tmp'

$(srctree)/ is essential because $(wildcard ) does not follow VPATH.

Fixes: f02dee2d148b ("tomoyo: Do not generate empty policy files")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Sasha Levin <sashal@kernel.org>

HID: amd_sfh: Fix warning unwind goto

[ Upstream commit 2a33ad4a0ba5a527b92aeef9a313aefec197fe28 ]

Return directly instead of using existing goto will not cleanup
previously allocated resources. Hence replace return with goto
to fix warning unwind goto which cleanups previously allocated
resources.

Fixes: 93ce5e0231d7 ("HID: amd_sfh: Implement SFH1.1 functionality")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

interconnect: qcom: msm8996: Fix regmap max_register values

[ Upstream commit 4be39d5d86c690c60e2afe55787fc5ec4409d0f0 ]

The device tree reg starts at BUS_BASE + QoS_OFFSET, but the regmap
configs in the ICC driver had values suggesting the reg started at
BUS_BASE. Shrink them down (where they haven't been already, so for
providers where QoS_OFFSET = 0) to make sure they stay within their
window.

Fixes: 7add937f5222 ("interconnect: qcom: Add MSM8996 interconnect provider driver")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> #db820c
Link: https://lore.kernel.org/r/20221210200353.418391-4-konrad.dybcio@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

interconnect: qcom: msm8996: Provide UFS clocks to A2NoC

[ Upstream commit 60426ff08af6a21275d9c879c0dfb09406469868 ]

On eMMC devices the bootloader has no business enabling UFS clocks.
That results in a platform hang and hard reboot when trying to vote
on paths including MASTER_UFS and since sync_state guarantees that
it's done at boot time, this effectively prevents such devices from
booting. Fix that.

Fixes: 7add937f5222 ("interconnect: qcom: Add MSM8996 interconnect provider driver")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> #db820c
Link: https://lore.kernel.org/r/20221210200353.418391-3-konrad.dybcio@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

firmware: arm_scmi: Fix virtio channels cleanup on shutdown

[ Upstream commit e325285de2cd82fbdcc4df8898e4c6a597674816 ]

When unloading the SCMI core stack module, configured to use the virtio
SCMI transport, LOCKDEP reports the splat down below about unsafe locks
dependencies.

In order to avoid this possible unsafe locking scenario call upfront
virtio_break_device() before getting hold of vioch->lock.

=====================================================
 WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
 6.1.0-00067-g6b934395ba07-dirty #4 Not tainted
 -----------------------------------------------------
 rmmod/307 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
 ffff000080c510e0 (&dev->vqs_list_lock){+.+.}-{3:3}, at: virtio_break_device+0x28/0x68

 and this task is already holding:
 ffff00008288ada0 (&channels[i].lock){-.-.}-{3:3}, at: virtio_chan_free+0x60/0x168 [scmi_module]

 which would create a new lock dependency:
  (&channels[i].lock){-.-.}-{3:3} -> (&dev->vqs_list_lock){+.+.}-{3:3}

 but this new dependency connects a HARDIRQ-irq-safe lock:
  (&channels[i].lock){-.-.}-{3:3}

 ... which became HARDIRQ-irq-safe at:
   lock_acquire+0x128/0x398
   _raw_spin_lock_irqsave+0x78/0x140
   scmi_vio_complete_cb+0xb4/0x3b8 [scmi_module]
   vring_interrupt+0x84/0x120
   vm_interrupt+0x94/0xe8
   __handle_irq_event_percpu+0xb4/0x3d8
   handle_irq_event_percpu+0x20/0x68
   handle_irq_event+0x50/0xb0
   handle_fasteoi_irq+0xac/0x138
   generic_handle_domain_irq+0x34/0x50
   gic_handle_irq+0xa0/0xd8
   call_on_irq_stack+0x2c/0x54
   do_interrupt_handler+0x8c/0x90
   el1_interrupt+0x40/0x78
   el1h_64_irq_handler+0x18/0x28
   el1h_64_irq+0x64/0x68
   _raw_write_unlock_irq+0x48/0x80
   ep_start_scan+0xf0/0x128
   do_epoll_wait+0x390/0x858
   do_compat_epoll_pwait.part.34+0x1c/0xb8
   __arm64_sys_epoll_pwait+0x80/0xd0
   invoke_syscall+0x4c/0x110
   el0_svc_common.constprop.3+0x98/0x120
   do_el0_svc+0x34/0xd0
   el0_svc+0x40/0x98
   el0t_64_sync_handler+0x98/0xc0
   el0t_64_sync+0x170/0x174

 to a HARDIRQ-irq-unsafe lock:
  (&dev->vqs_list_lock){+.+.}-{3:3}

 ... which became HARDIRQ-irq-unsafe at:
 ...
   lock_acquire+0x128/0x398
   _raw_spin_lock+0x58/0x70
   __vring_new_virtqueue+0x130/0x1c0
   vring_create_virtqueue+0xc4/0x2b8
   vm_find_vqs+0x20c/0x430
   init_vq+0x308/0x390
   virtblk_probe+0x114/0x9b0
   virtio_dev_probe+0x1a4/0x248
   really_probe+0xc8/0x3a8
   __driver_probe_device+0x84/0x190
   driver_probe_device+0x44/0x110
   __driver_attach+0x104/0x1e8
   bus_for_each_dev+0x7c/0xd0
   driver_attach+0x2c/0x38
   bus_add_driver+0x1e4/0x258
   driver_register+0x6c/0x128
   register_virtio_driver+0x2c/0x48
   virtio_blk_init+0x70/0xac
   do_one_initcall+0x84/0x420
   kernel_init_freeable+0x2d0/0x340
   kernel_init+0x2c/0x138
   ret_from_fork+0x10/0x20

 other info that might help us debug this:

  Possible interrupt unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(&dev->vqs_list_lock);
                                local_irq_disable();
                                lock(&channels[i].lock);
                                lock(&dev->vqs_list_lock);
   <Interrupt>
     lock(&channels[i].lock);

  *** DEADLOCK ***
================

Fixes: 42e90eb53bf3f ("firmware: arm_scmi: Add a virtio channel refcount")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221222183823.518856-6-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

firmware: arm_scmi: Harden shared memory access in fetch_notification

[ Upstream commit 9bae076cd4e3e3c3dc185cae829d80b2dddec86e ]

A misbheaving SCMI platform firmware could reply with out-of-spec
notifications, shorter than the mimimum size comprising a header.

Fixes: d5141f37c42e ("firmware: arm_scmi: Add notifications support in transport layer")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221222183823.518856-4-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

firmware: arm_scmi: Harden shared memory access in fetch_response

[ Upstream commit ad78b81a1077f7d956952cd8bdfe1e61504e3eb8 ]

A misbheaving SCMI platform firmware could reply with out-of-spec messages,
shorter than the mimimum size comprising a header and a status field.

Harden shmem_fetch_response to properly truncate such a bad messages.

Fixes: 5c8a47a5a91d ("firmware: arm_scmi: Make scmi core independent of the transport type")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221222183823.518856-3-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

EDAC/highbank: Fix memory leak in highbank_mc_probe()

[ Upstream commit e7a293658c20a7945014570e1921bf7d25d68a36 ]

When devres_open_group() fails, it returns -ENOMEM without freeing memory
allocated by edac_mc_alloc().

Call edac_mc_free() on the error handling path to avoid a memory leak.

  [ bp: Massage commit message. ]

Fixes: a1b01edb2745 ("edac: add support for Calxeda highbank memory controller")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20221229054825.1361993-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

reset: uniphier-glue: Fix possible null-ptr-deref

[ Upstream commit 3a2390c6777e3f6662980c6cfc25cafe9e4fef98 ]

It will cause null-ptr-deref when resource_size(res) invoked,
if platform_get_resource() returns NULL.

Fixes: 499fef09a323 ("reset: uniphier: add USB3 core reset control")
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20221114004958.258513-1-tanghui20@huawei.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

reset: ti-sci: honor TI_SCI_PROTOCOL setting when not COMPILE_TEST

[ Upstream commit 13678f3feb3009b23aab424864fd0dac0765c83e ]

There is a build error when COMPILE_TEST=y, TI_SCI_PROTOCOL=m,
and RESET_TI_SCI=y:

drivers/reset/reset-ti-sci.o: in function `ti_sci_reset_probe':
reset-ti-sci.c:(.text+0x22c): undefined reference to `devm_ti_sci_get_handle'

Fix this by making RESET_TI_SCI honor the Kconfig setting of
TI_SCI_PROTOCOL when COMPILE_TEST is not set. When COMPILE_TEST is set,
TI_SCI_PROTOCOL must be disabled (=n).

Fixes: a6af504184c9 ("reset: ti-sci: Allow building under COMPILE_TEST")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Tero Kristo <kristo@kernel.org>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20221030055636.3139-1-rdunlap@infradead.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

soc: imx8m: Fix incorrect check for of_clk_get_by_name()

[ Upstream commit 490748874ebf1875420fc29b335bba2075dd1b5e ]

of_clk_get_by_name() returns error pointers instead of NULL.
Use IS_ERR() checks the return value to catch errors.

Fixes: 836fb30949d9 ("soc: imx8m: Enable OCOTP clock before reading the register")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: imx8mm-venice-gw7901: fix USB2 controller OC polarity

[ Upstream commit ae066f374687d7dd06bb8c732f66d6ab3c3fd480 ]

The GW7901 has USB2 routed to a USB VBUS supply with over-current
protection via an active-low pin. Define the OC pin polarity properly.

Fixes: 2b1649a83afc ("arm64: dts: imx: Add i.mx8mm Gateworks gw7901 dts support")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

HID: intel_ish-hid: Add check for ishtp_dma_tx_map

[ Upstream commit b3d40c3ec3dc4ad78017de6c3a38979f57aaaab8 ]

As the kcalloc may return NULL pointer,
it should be better to check the ishtp_dma_tx_map
before use in order to avoid NULL pointer dereference.

Fixes: 3703f53b99e4 ("HID: intel_ish-hid: ISH Transport layer")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: imx8mp-evk: pcie0-refclk cosmetic cleanup

[ Upstream commit 9a65c759e4666476a6642ad87b4db8a67cb957d0 ]

Use the correct indention.

Fixes: d50650500064 ("arm64: dts: imx8mp-evk: Add PCIe support")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: imx8mp: Fix power-domain typo

[ Upstream commit 10e2f328bd900787fd2db24e474f87e1d525ccc4 ]

dt_binding_check detects an issue with the pgc_hsiomix power
domain:
  pgc: 'power-domains@17' does not match any of the regexes

This is because 'power-domains' should be 'power-domain'

Fixes: 2ae42e0c0b67 ("arm64: dts: imx8mp: add HSIO power-domains")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: imx8mp: Fix missing GPC Interrupt

[ Upstream commit b3b75ace2085aca623c57e04ea7218ae690090fb ]

The GPC node references an interrupt parent, but it doesn't
state the interrupt itself.  According to the TRM, this IRQ
is 87. This also eliminate an error detected from dt_binding_check

Fixes: fc0f05124621 ("arm64: dts: imx8mp: add GPC node with GPU power domains")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

soc: imx: imx8mp-blk-ctrl: don't set power device name

[ Upstream commit 21b84ebeee79d91e405f87f051e9489ef30ecad6 ]

Setting the device name after it has been registered confuses the sysfs
cleanup paths. This has already been fixed for the imx8m-blk-ctrl driver in
b64b46fbaa1d ("Revert "soc: imx: imx8m-blk-ctrl: set power device name""),
but the same problem exists in imx8mp-blk-ctrl.

Fixes: 556f5cf9568a ("soc: imx: add i.MX8MP HSIO blk-ctrl")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: imx: add missing of_node_put()

[ Upstream commit 87b30c4b0efb6a194a7b8eac2568a3da520d905f ]

Calling of_find_compatible_node() returns a node pointer with refcount
incremented. Use of_node_put() on it when done.
The patch fixes the same problem on different i.MX platforms.

Fixes: 8b88f7ef31dde ("ARM: mx25: Retrieve IIM base from dt")
Fixes: 94b2bec1b0e05 ("ARM: imx27: Retrieve the SYSCTRL base address from devicetree")
Fixes: 3172225d45bd9 ("ARM: imx31: Retrieve the IIM base address from devicetree")
Fixes: f68ea682d1da7 ("ARM: imx35: Retrieve the IIM base address from devicetree")
Fixes: ee18a7154ee08 ("ARM: imx5: retrieve iim base from device tree")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: imx93-11x11-evk: correct clock and strobe pad setting

[ Upstream commit 62f0147fd4d86620853bee027800f988d3013656 ]

For clock and strobe pad of usdhc, need to config as pull down.
Current pad config set these pad as both pull up and pull down,
this is wrong, so fix it here.
Find this issue when enable HS400ES mode on one Micron eMMC chip,
CMD8 always meet CRC error in HS400ES/HS400 mode.

Fixes: e37907bd8294 ("arm64: dts: freescale: add i.MX93 11x11 EVK basic support")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: verdin-imx8mm: fix dev board audio playback

[ Upstream commit 6c620a30515c494b5eeb3dc0e40d3220ea04c53b ]

Set optional `simple-audio-card,mclk-fs` parameter to ensure a proper
clock to the nau8822 audio codec. Without this change with an audio
stream rate of 44.1 kHz the playback is faster.
Set the MCLK at the right frequency, codec can properly use it to
generate 44.1 kHz I2S-FS.

Fixes: 6a57f224f734 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: imx8mm-beacon: Fix ecspi2 pinmux

[ Upstream commit 5225ba9db112ec4ed67da5e4d8b72e618573955e ]

Early hardware did not support hardware handshaking on the UART, but
final production hardware did.  When the hardware was updated the chip
select was changed to facilitate hardware handshaking on UART3.  Fix the
ecspi2 pin mux to eliminate a pin conflict with UART3 and allow the
EEPROM to operate again.

Fixes: 4ce01ce36d77 ("arm64: dts: imx8mm-beacon: Enable RTS-CTS on UART3")
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: verdin-imx8mm: fix dahlia audio playback

[ Upstream commit 0d1d030f00f3f3eea04017cbd50ffe44a2842ebc ]

Set optional `simple-audio-card,mclk-fs` parameter to ensure a proper
clock to the wm8904 audio codec. Without this change with an audio
stream rate of 44.1 kHz the playback is completely distorted.

Fixes: 6a57f224f734 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: imx6qdl-gw560x: Remove incorrect 'uart-has-rtscts'

[ Upstream commit 9dfbc72256b5de608ad10989bcbafdbbd1ac8d4e ]

The following build warning is seen when running:

make dtbs_check DT_SCHEMA_FILES=fsl-imx-uart.yaml

arch/arm/boot/dts/imx6dl-gw560x.dtb: serial@2020000: rts-gpios: False schema does not allow [[20, 1, 0]]
From schema: Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml

The imx6qdl-gw560x board does not expose the UART RTS and CTS
as native UART pins, so 'uart-has-rtscts' should not be used.

Using 'uart-has-rtscts' with 'rts-gpios' is an invalid combination
detected by serial.yaml.

Fix the problem by removing the incorrect 'uart-has-rtscts' property.

Fixes: b8a559feffb2 ("ARM: dts: imx: add Gateworks Ventana GW5600 support")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: imx7d-pico: Use 'clock-frequency'

[ Upstream commit f4dd0845c4f1f5371f1e06fef0e4a1734a2db964 ]

'clock_frequency' is not a valid property.

Use the correct 'clock-frequency' instead.

Fixes: 8b646cfb84c3 ("ARM: dts: imx7d-pico: Add support for the dwarf baseboard")
Fixes: 6418fd92417f ("ARM: dts: imx7d-pico: Add support for the nymph baseboard")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: imx6ul-pico-dwarf: Use 'clock-frequency'

[ Upstream commit 94e2cf1e0db5b06c7a6ae0878c5cbec925819a8a ]

'clock_frequency' is not a valid property.

Use the correct 'clock-frequency' instead.

Fixes: 47246fafef84 ("ARM: dts: imx6ul-pico: Add support for the dwarf baseboard")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: imx8mp-phycore-som: Remove invalid PMIC property

[ Upstream commit cfd04dd1c4b6c33afc2a934b957d71cf8ddd1539 ]

'regulator-compatible' is not a valid property according to
nxp,pca9450-regulator.yaml and causes the following warning:

  DTC_CHK arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk2.dtb
...
pmic@25: regulators:LDO1: Unevaluated properties are not allowed ('regulator-compatible' was unexpected)

Remove the invalid 'regulator-compatible' property.

Cc: Teresa Remmet <t.remmet@phytec.de>
Fixes: 88f7f6bcca37 ("arm64: dts: freescale: Add support for phyBOARD-Pollux-i.MX8MP")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>