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This reverts commit adc1796eced46b48e23ec200a219d635f33a38ee which is
commit dc23806a7c47ec5f1293aba407fb69519f976ee0 upstream.
It causes boot regressions on some systems as all of the "fixes" for
drivers are not properly backported yet. Once that is completed, only
then can this be applied, if really necessary given the potential for
explosions, perhaps we might want to wait a few -rc releases first...
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Gui-Dong Han <hanguidong02@gmail.com>
Cc: Qiu-ji Chen <chenqiuji666@gmail.com>
Reported-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/7dfd0e63-a725-4fac-b2a0-f2e621d99d1b@sirena.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 730e5ebff40c852e3ea57b71bf02a4b89c69435f upstream.
Commit 11a78b794496 ("ARM: OMAP: MPUIO wake updates") registers the
omap_mpuio_driver from omap_mpuio_init(), which is called from
omap_gpio_probe().
However, it neither makes sense to register drivers from probe()
callbacks of other drivers, nor does the driver core allow registering
drivers with a device lock already being held.
The latter was revealed by commit dc23806a7c47 ("driver core: enforce
device_lock for driver_match_device()") leading to a potential deadlock
condition described in [1].
Additionally, the omap_mpuio_driver is never unregistered from the
driver core, even if the module is unloaded.
Hence, register the omap_mpuio_driver from the module initcall and
unregister it in module_exit().
Link: https://lore.kernel.org/lkml/DFU7CEPUSG9A.1KKGVW4HIPMSH@kernel.org/ [1]
Fixes: dc23806a7c47 ("driver core: enforce device_lock for driver_match_device()")
Fixes: 11a78b794496 ("ARM: OMAP: MPUIO wake updates")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Link: https://patch.msgid.link/20260127201725.35883-1-dakr@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7446284023e8ef694fb392348185349c773eefb3 upstream.
driver support indirect read and indirect write operation with
assumption no force device removal(unbind) operation. However
force device removal(removal) is still available to root superuser.
Unbinding driver during operation causes kernel crash. This changes
ensure driver able to handle such operation for indirect read and
indirect write by implementing refcount to track attached devices
to the controller and gracefully wait and until attached devices
remove operation completed before proceed with removal operation.
Signed-off-by: Khairul Anuar Romli <khairul.anuar.romli@altera.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@altera.com>
Reviewed-by: Niravkumar L Rabara <nirav.rabara@altera.com>
Link: https://patch.msgid.link/8704fd6bd2ff4d37bba4a0eacf5eba3ba001079e.1756168074.git.khairul.anuar.romli@altera.com
Signed-off-by: Mark Brown <broonie@kernel.org>
[Add cqspi defination in cqspi_exec_mem_op and minor context change fixed.]
Signed-off-by: Robert Garcia <rob_garcia@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit adcbadfd8e05d3558c9cfaa783f17c645181165f upstream.
Commit fd580c9830316eda ("net: sfp: augment SFP parsing with
phy_interface_t bitmap") did not add augumentation for the interface
bitmap in the quirk for Ubiquiti U-Fiber Instant.
The subsequent commit f81fa96d8a6c7a77 ("net: phylink: use
phy_interface_t bitmaps for optical modules") then changed phylink code
for selection of SFP interface: instead of using link mode bitmap, the
interface bitmap is used, and the fastest interface mode supported by
both SFP module and MAC is chosen.
Since the interface bitmap contains also modes faster than 1000base-x,
this caused a regression wherein this module stopped working
out-of-the-box.
Fix this.
Fixes: fd580c9830316eda ("net: sfp: augment SFP parsing with phy_interface_t bitmap")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20260129082227.17443-1-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 42b2dab4340d39b71334151e10c6d7d9b0040ffa upstream.
Issue occurred during a continuous reboot test of several thousand
iterations specific to a fabric topo with dual mode target where it
sends a PLOGI/PRLI and then sends a LOGO. The initiator was also in the
process of discovery and sent a PLOGI to the switch. It then queried a
list of ports logged in via mbx 75h and the GPDB response indicated that
the target was logged in. This caused a mismatch in the states between
the driver and FW. Requery the FW for the state and proceed with the
rest of discovery process.
Fixes: a4239945b8ad ("scsi: qla2xxx: Add switch command to simplify fabric discovery")
Cc: stable@vger.kernel.org
Signed-off-by: Anil Gurumurthy <agurumurthy@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Link: https://patch.msgid.link/20251210101604.431868-11-njavali@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7adbd2b7809066c75f0433e5e2a8e114b429f30f upstream.
System crash seen during load/unload test in a loop,
[61110.449331] qla2xxx [0000:27:00.0]-0042:0: Disabled MSI-X.
[61110.467494] =============================================================================
[61110.467498] BUG qla2xxx_srbs (Tainted: G OE -------- --- ): Objects remaining in qla2xxx_srbs on __kmem_cache_shutdown()
[61110.467501] -----------------------------------------------------------------------------
[61110.467502] Slab 0x000000000ffc8162 objects=51 used=1 fp=0x00000000e25d3d85 flags=0x57ffffc0010200(slab|head|node=1|zone=2|lastcpupid=0x1fffff)
[61110.467509] CPU: 53 PID: 455206 Comm: rmmod Kdump: loaded Tainted: G OE -------- --- 5.14.0-284.11.1.el9_2.x86_64 #1
[61110.467513] Hardware name: HPE ProLiant DL385 Gen10 Plus v2/ProLiant DL385 Gen10 Plus v2, BIOS A42 08/17/2023
[61110.467515] Call Trace:
[61110.467516] <TASK>
[61110.467519] dump_stack_lvl+0x34/0x48
[61110.467526] slab_err.cold+0x53/0x67
[61110.467534] __kmem_cache_shutdown+0x16e/0x320
[61110.467540] kmem_cache_destroy+0x51/0x160
[61110.467544] qla2x00_module_exit+0x93/0x99 [qla2xxx]
[61110.467607] ? __do_sys_delete_module.constprop.0+0x178/0x280
[61110.467613] ? syscall_trace_enter.constprop.0+0x145/0x1d0
[61110.467616] ? do_syscall_64+0x5c/0x90
[61110.467619] ? exc_page_fault+0x62/0x150
[61110.467622] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd
[61110.467626] </TASK>
[61110.467627] Disabling lock debugging due to kernel taint
[61110.467635] Object 0x0000000026f7e6e6 @offset=16000
[61110.467639] ------------[ cut here ]------------
[61110.467639] kmem_cache_destroy qla2xxx_srbs: Slab cache still has objects when called from qla2x00_module_exit+0x93/0x99 [qla2xxx]
[61110.467659] WARNING: CPU: 53 PID: 455206 at mm/slab_common.c:520 kmem_cache_destroy+0x14d/0x160
[61110.467718] CPU: 53 PID: 455206 Comm: rmmod Kdump: loaded Tainted: G B OE -------- --- 5.14.0-284.11.1.el9_2.x86_64 #1
[61110.467720] Hardware name: HPE ProLiant DL385 Gen10 Plus v2/ProLiant DL385 Gen10 Plus v2, BIOS A42 08/17/2023
[61110.467721] RIP: 0010:kmem_cache_destroy+0x14d/0x160
[61110.467724] Code: 99 7d 07 00 48 89 ef e8 e1 6a 07 00 eb b3 48 8b 55 60 48 8b 4c 24 20 48 c7 c6 70 fc 66 90 48 c7 c7 f8 ef a1 90 e8 e1 ed 7c 00 <0f> 0b eb 93 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 55 48 89
[61110.467725] RSP: 0018:ffffa304e489fe80 EFLAGS: 00010282
[61110.467727] RAX: 0000000000000000 RBX: ffffffffc0d9a860 RCX: 0000000000000027
[61110.467729] RDX: ffff8fd5ff9598a8 RSI: 0000000000000001 RDI: ffff8fd5ff9598a0
[61110.467730] RBP: ffff8fb6aaf78700 R08: 0000000000000000 R09: 0000000100d863b7
[61110.467731] R10: ffffa304e489fd20 R11: ffffffff913bef48 R12: 0000000040002000
[61110.467731] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[61110.467733] FS: 00007f64c89fb740(0000) GS:ffff8fd5ff940000(0000) knlGS:0000000000000000
[61110.467734] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[61110.467735] CR2: 00007f0f02bfe000 CR3: 00000020ad6dc005 CR4: 0000000000770ee0
[61110.467736] PKRU: 55555554
[61110.467737] Call Trace:
[61110.467738] <TASK>
[61110.467739] qla2x00_module_exit+0x93/0x99 [qla2xxx]
[61110.467755] ? __do_sys_delete_module.constprop.0+0x178/0x280
Free sp in the error path to fix the crash.
Fixes: f352eeb75419 ("scsi: qla2xxx: Add ability to use GPNFT/GNNFT for RSCN handling")
Cc: stable@vger.kernel.org
Signed-off-by: Anil Gurumurthy <agurumurthy@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Link: https://patch.msgid.link/20251210101604.431868-9-njavali@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8890bf450e0b6b283f48ac619fca5ac2f14ddd62 upstream.
System crash seen during load/unload test in a loop.
[105954.384919] RBP: ffff914589838dc0 R08: 0000000000000000 R09: 0000000000000086
[105954.384920] R10: 000000000000000f R11: ffffa31240904be5 R12: ffff914605f868e0
[105954.384921] R13: ffff914605f86910 R14: 0000000000008010 R15: 00000000ddb7c000
[105954.384923] FS: 0000000000000000(0000) GS:ffff9163fec40000(0000) knlGS:0000000000000000
[105954.384925] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[105954.384926] CR2: 000055d31ce1d6a0 CR3: 0000000119f5e001 CR4: 0000000000770ee0
[105954.384928] PKRU: 55555554
[105954.384929] Call Trace:
[105954.384931] <IRQ>
[105954.384934] qla24xx_sp_unmap+0x1f3/0x2a0 [qla2xxx]
[105954.384962] ? qla_async_scan_sp_done+0x114/0x1f0 [qla2xxx]
[105954.384980] ? qla24xx_els_ct_entry+0x4de/0x760 [qla2xxx]
[105954.384999] ? __wake_up_common+0x80/0x190
[105954.385004] ? qla24xx_process_response_queue+0xc2/0xaa0 [qla2xxx]
[105954.385023] ? qla24xx_msix_rsp_q+0x44/0xb0 [qla2xxx]
[105954.385040] ? __handle_irq_event_percpu+0x3d/0x190
[105954.385044] ? handle_irq_event+0x58/0xb0
[105954.385046] ? handle_edge_irq+0x93/0x240
[105954.385050] ? __common_interrupt+0x41/0xa0
[105954.385055] ? common_interrupt+0x3e/0xa0
[105954.385060] ? asm_common_interrupt+0x22/0x40
The root cause of this was that there was a free (dma_free_attrs) in the
interrupt context. There was a device discovery/fabric scan in
progress. A module unload was issued which set the UNLOADING flag. As
part of the discovery, after receiving an interrupt a work queue was
scheduled (which involved a work to be queued). Since the UNLOADING
flag is set, the work item was not allocated and the mapped memory had
to be freed. The free occurred in interrupt context leading to system
crash. Delay the driver unload until the fabric scan is complete to
avoid the crash.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/202512090414.07Waorz0-lkp@intel.com/
Fixes: 783e0dc4f66a ("qla2xxx: Check for device state before unloading the driver.")
Cc: stable@vger.kernel.org
Signed-off-by: Anil Gurumurthy <agurumurthy@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Link: https://patch.msgid.link/20251210101604.431868-8-njavali@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b0335ee4fb94832a4ef68774ca7e7b33b473c7a6 upstream.
Tape device doesn't show up after RSCNs. To fix this, remove tape
device specific checks which allows recovery of tape devices.
Fixes: 44c57f205876 ("scsi: qla2xxx: Changes to support FCP2 Target")
Cc: stable@vger.kernel.org
Signed-off-by: Shreyas Deodhar <sdeodhar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Link: https://patch.msgid.link/20251210101604.431868-7-njavali@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b6df15aec8c3441357d4da0eaf4339eb20f5999f upstream.
System crash with the following signature
[154563.214890] nvme nvme2: NVME-FC{1}: controller connect complete
[154564.169363] qla2xxx [0000:b0:00.1]-3002:2: nvme: Sched: Set ZIO exchange threshold to 3.
[154564.169405] qla2xxx [0000:b0:00.1]-ffffff:2: SET ZIO Activity exchange threshold to 5.
[154565.539974] qla2xxx [0000:b0:00.1]-5013:2: RSCN database changed – 0078 0080 0000.
[154565.545744] qla2xxx [0000:b0:00.1]-5013:2: RSCN database changed – 0078 00a0 0000.
[154565.545857] qla2xxx [0000:b0:00.1]-11a2:2: FEC=enabled (data rate).
[154565.552760] qla2xxx [0000:b0:00.1]-11a2:2: FEC=enabled (data rate).
[154565.553079] BUG: kernel NULL pointer dereference, address: 00000000000000f8
[154565.553080] #PF: supervisor read access in kernel mode
[154565.553082] #PF: error_code(0x0000) - not-present page
[154565.553084] PGD 80000010488ab067 P4D 80000010488ab067 PUD 104978a067 PMD 0
[154565.553089] Oops: 0000 1 PREEMPT SMP PTI
[154565.553092] CPU: 10 PID: 858 Comm: qla2xxx_2_dpc Kdump: loaded Tainted: G OE ------- --- 5.14.0-503.11.1.el9_5.x86_64 #1
[154565.553096] Hardware name: HPE Synergy 660 Gen10/Synergy 660 Gen10 Compute Module, BIOS I43 09/30/2024
[154565.553097] RIP: 0010:qla_fab_async_scan.part.0+0x40b/0x870 [qla2xxx]
[154565.553141] Code: 00 00 e8 58 a3 ec d4 49 89 e9 ba 12 20 00 00 4c 89 e6 49 c7 c0 00 ee a8 c0 48 c7 c1 66 c0 a9 c0 bf 00 80 00 10 e8 15 69 00 00 <4c> 8b 8d f8 00 00 00 4d 85 c9 74 35 49 8b 84 24 00 19 00 00 48 8b
[154565.553143] RSP: 0018:ffffb4dbc8aebdd0 EFLAGS: 00010286
[154565.553145] RAX: 0000000000000000 RBX: ffff8ec2cf0908d0 RCX: 0000000000000002
[154565.553147] RDX: 0000000000000000 RSI: ffffffffc0a9c896 RDI: ffffb4dbc8aebd47
[154565.553148] RBP: 0000000000000000 R08: ffffb4dbc8aebd45 R09: 0000000000ffff0a
[154565.553150] R10: 0000000000000000 R11: 000000000000000f R12: ffff8ec2cf0908d0
[154565.553151] R13: ffff8ec2cf090900 R14: 0000000000000102 R15: ffff8ec2cf084000
[154565.553152] FS: 0000000000000000(0000) GS:ffff8ed27f800000(0000) knlGS:0000000000000000
[154565.553154] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[154565.553155] CR2: 00000000000000f8 CR3: 000000113ae0a005 CR4: 00000000007706f0
[154565.553157] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[154565.553158] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[154565.553159] PKRU: 55555554
[154565.553160] Call Trace:
[154565.553162] <TASK>
[154565.553165] ? show_trace_log_lvl+0x1c4/0x2df
[154565.553172] ? show_trace_log_lvl+0x1c4/0x2df
[154565.553177] ? qla_fab_async_scan.part.0+0x40b/0x870 [qla2xxx]
[154565.553215] ? __die_body.cold+0x8/0xd
[154565.553218] ? page_fault_oops+0x134/0x170
[154565.553223] ? snprintf+0x49/0x70
[154565.553229] ? exc_page_fault+0x62/0x150
[154565.553238] ? asm_exc_page_fault+0x22/0x30
Check for sp being non NULL before freeing any associated memory
Fixes: a4239945b8ad ("scsi: qla2xxx: Add switch command to simplify fabric discovery")
Cc: stable@vger.kernel.org
Signed-off-by: Anil Gurumurthy <agurumurthy@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Link: https://patch.msgid.link/20251210101604.431868-10-njavali@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0177aa828d966117ea30a44f2e1890fdb356118e upstream.
rtw_core_enable_beacon() reads 4 bytes from an address that is not a
multiple of 4. This results in a crash on some systems.
Do 1 byte reads/writes instead.
Unable to handle kernel paging request at virtual address ffff8000827e0522
Mem abort info:
ESR = 0x0000000096000021
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x21: alignment fault
Data abort info:
ISV = 0, ISS = 0x00000021, ISS2 = 0x00000000
CM = 0, WnR = 0, TnD = 0, TagAccess = 0
GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000005492000
[ffff8000827e0522] pgd=0000000000000000, p4d=10000001021d9403, pud=10000001021da403, pmd=100000011061c403, pte=00780000f3200f13
Internal error: Oops: 0000000096000021 [#1] SMP
Modules linked in: [...] rtw88_8822ce rtw88_8822c rtw88_pci rtw88_core [...]
CPU: 0 UID: 0 PID: 73 Comm: kworker/u32:2 Tainted: G W 6.17.9 #1-NixOS VOLUNTARY
Tainted: [W]=WARN
Hardware name: FriendlyElec NanoPC-T6 LTS (DT)
Workqueue: phy0 rtw_c2h_work [rtw88_core]
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : rtw_pci_read32+0x18/0x40 [rtw88_pci]
lr : rtw_core_enable_beacon+0xe0/0x148 [rtw88_core]
sp : ffff800080cc3ca0
x29: ffff800080cc3ca0 x28: ffff0001031fc240 x27: ffff000102100828
x26: ffffd2cb7c9b4088 x25: ffff0001031fc2c0 x24: ffff000112fdef00
x23: ffff000112fdef18 x22: ffff000111c29970 x21: 0000000000000001
x20: 0000000000000001 x19: ffff000111c22040 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : ffffd2cb6507c090
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000007f10 x1 : 0000000000000522 x0 : ffff8000827e0522
Call trace:
rtw_pci_read32+0x18/0x40 [rtw88_pci] (P)
rtw_hw_scan_chan_switch+0x124/0x1a8 [rtw88_core]
rtw_fw_c2h_cmd_handle+0x254/0x290 [rtw88_core]
rtw_c2h_work+0x50/0x98 [rtw88_core]
process_one_work+0x178/0x3f8
worker_thread+0x208/0x418
kthread+0x120/0x220
ret_from_fork+0x10/0x20
Code: d28fe202 8b020000 f9524400 8b214000 (b9400000)
---[ end trace 0000000000000000 ]---
Fixes: ad6741b1e044 ("wifi: rtw88: Stop high queue during scan")
Cc: stable@vger.kernel.org
Closes: https://github.com/lwfinger/rtw88/issues/418
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/6345300d-8c93-464c-9b05-d0d9af3c97ad@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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virtio_crypto_skcipher_crypt_req
commit 14f86a1155cca1176abf55987b2fce7f7fcb2455 upstream.
With function virtio_crypto_skcipher_crypt_req(), there is already
virtqueue_kick() call with spinlock held in function
__virtio_crypto_skcipher_do_req(). Remove duplicated virtqueue_kick()
function call here.
Fixes: d79b5d0bbf2e ("crypto: virtio - support crypto engine framework")
Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b505047ffc8057555900d2d3a005d033e6967382 upstream.
When VM boots with one virtio-crypto PCI device and builtin backend,
run openssl benchmark command with multiple processes, such as
openssl speed -evp aes-128-cbc -engine afalg -seconds 10 -multi 32
openssl processes will hangup and there is error reported like this:
virtio_crypto virtio0: dataq.0:id 3 is not a head!
It seems that the data virtqueue need protection when it is handled
for virtio done notification. If the spinlock protection is added
in virtcrypto_done_task(), openssl benchmark with multiple processes
works well.
Fixes: fed93fb62e05 ("crypto: virtio - Handle dataq logic with tasklet")
Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1562b1fb7e17c1b3addb15e125c718b2be7f5512 upstream.
The existing allocation of scatterlists in omap_crypto_copy_sg_lists()
was allocating an array of scatterlist pointers, not scatterlist objects,
resulting in a 4x too small allocation.
Use sizeof(*new_sg) to get the correct object size.
Fixes: 74ed87e7e7f7 ("crypto: omap - add base support library for common routines")
Signed-off-by: Kees Cook <kees@kernel.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 5565a72b24fa7935a9f30af386e92c8c9dfb23b9 upstream.
OTX_CPT_UCODE_NAME_LENGTH limits the microcode name to 64 bytes. If a
user writes a string of exactly 64 characters, the original code used
'strlen(buf) > 64' to check the length, but then strscpy() copies only
63 characters before adding a NUL terminator, silently truncating the
copied string.
Fix this off-by-one error by using 'count' directly for the length check
to ensure long names are rejected early and copied without truncation.
Cc: stable@vger.kernel.org
Fixes: d9110b0b01ff ("crypto: marvell - add support for OCTEON TX CPT engine")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6c0568b7741a346088fd6dfced2d871f7d481d06 upstream.
Add USB ID 7392:e611 for Edimax EW-7611UXB which is RTL8851BU-based
Wi-Fi + Bluetooth adapter.
The information in /sys/kernel/debug/usb/devices about the Bluetooth
device is listed as the below:
T: Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 6 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=7392 ProdID=e611 Rev= 0.00
S: Manufacturer=Realtek
S: Product=802.11ax WLAN Adapter
S: SerialNumber=00e04c000001
C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtw89_8851bu_git
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
Cc: stable@vger.kernel.org # 6.6.x
Signed-off-by: Zenm Chen <zenmchen@gmail.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit dc23806a7c47ec5f1293aba407fb69519f976ee0 upstream.
Currently, driver_match_device() is called from three sites. One site
(__device_attach_driver) holds device_lock(dev), but the other two
(bind_store and __driver_attach) do not. This inconsistency means that
bus match() callbacks are not guaranteed to be called with the lock
held.
Fix this by introducing driver_match_device_locked(), which guarantees
holding the device lock using a scoped guard. Replace the unlocked calls
in bind_store() and __driver_attach() with this new helper. Also add a
lock assertion to driver_match_device() to enforce this guarantee.
This consistency also fixes a known race condition. The driver_override
implementation relies on the device_lock, so the missing lock led to the
use-after-free (UAF) reported in Bugzilla for buses using this field.
Stress testing the two newly locked paths for 24 hours with
CONFIG_PROVE_LOCKING and CONFIG_LOCKDEP enabled showed no UAF recurrence
and no lockdep warnings.
Cc: stable@vger.kernel.org
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220789
Suggested-by: Qiu-ji Chen <chenqiuji666@gmail.com>
Signed-off-by: Gui-Dong Han <hanguidong02@gmail.com>
Fixes: 49b420a13ff9 ("driver core: check bus->match without holding device lock")
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Link: https://patch.msgid.link/20260113162843.12712-1-hanguidong02@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit a0a75b40c919b9f6d3a0b6c978e6ccf344c1be5a ]
The COMMAND1 register bits [29:28] set the SPI mode, which controls
the clock idle level. When a transfer ends, tegra_spi_transfer_end()
writes def_command1_reg back to restore the default state, but this
register value currently lacks the mode bits. This results in the
clock always being configured as idle low, breaking devices that
need it high.
Fix this by storing the mode bits in def_command1_reg during setup,
to prevent this field from always being cleared.
Fixes: f333a331adfa ("spi/tegra114: add spi driver")
Signed-off-by: Vishwaroop A <va@nvidia.com>
Link: https://patch.msgid.link/20260204141212.1540382-1-va@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 41d9a6795b95d6ea28439ac1e9ce8c95bbca20fc ]
In tegra_slink_probe(), when platform_get_irq() fails, it directly
returns from the function with an error code, which causes a memory leak.
Replace it with a goto label to ensure proper cleanup.
Fixes: eb9913b511f1 ("spi: tegra: Fix missing IRQ check in tegra_slink_probe()")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20260202-slink-v1-1-eac50433a6f9@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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tegra_qspi_non_combined_seq_xfer
[ Upstream commit 6d7723e8161f3c3f14125557e19dd080e9d882be ]
Protect the curr_xfer clearing in tegra_qspi_non_combined_seq_xfer()
with the spinlock to prevent a race with the interrupt handler that
reads this field to check if a transfer is in progress.
Fixes: b4e002d8a7ce ("spi: tegra210-quad: Fix timeout handling")
Signed-off-by: Breno Leitao <leitao@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patch.msgid.link/20260126-tegra_xfer-v2-5-6d2115e4f387@debian.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit bf4528ab28e2bf112c3a2cdef44fd13f007781cd ]
The curr_xfer field is read by the IRQ handler without holding the lock
to check if a transfer is in progress. When clearing curr_xfer in the
combined sequence transfer loop, protect it with the spinlock to prevent
a race with the interrupt handler.
Protect the curr_xfer clearing at the exit path of
tegra_qspi_combined_seq_xfer() with the spinlock to prevent a race
with the interrupt handler that reads this field.
Without this protection, the IRQ handler could read a partially updated
curr_xfer value, leading to NULL pointer dereference or use-after-free.
Fixes: b4e002d8a7ce ("spi: tegra210-quad: Fix timeout handling")
Signed-off-by: Breno Leitao <leitao@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patch.msgid.link/20260126-tegra_xfer-v2-4-6d2115e4f387@debian.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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tegra_qspi_setup_transfer_one
[ Upstream commit f5a4d7f5e32ba163cff893493ec1cbb0fd2fb0d5 ]
When the timeout handler processes a completed transfer and signals
completion, the transfer thread can immediately set up the next transfer
and assign curr_xfer to point to it.
If a delayed ISR from the previous transfer then runs, it checks if
(!tqspi->curr_xfer) (currently without the lock also -- to be fixed
soon) to detect stale interrupts, but this check passes because
curr_xfer now points to the new transfer. The ISR then incorrectly
processes the new transfer's context.
Protect the curr_xfer assignment with the spinlock to ensure the ISR
either sees NULL (and bails out) or sees the new value only after the
assignment is complete.
Fixes: 921fc1838fb0 ("spi: tegra210-quad: Add support for Tegra210 QSPI controller")
Signed-off-by: Breno Leitao <leitao@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patch.msgid.link/20260126-tegra_xfer-v2-3-6d2115e4f387@debian.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ef13ba357656451d6371940d8414e3e271df97e3 ]
Move the assignment of the transfer pointer from curr_xfer inside the
spinlock critical section in both handle_cpu_based_xfer() and
handle_dma_based_xfer().
Previously, curr_xfer was read before acquiring the lock, creating a
window where the timeout path could clear curr_xfer between reading it
and using it. By moving the read inside the lock, the handlers are
guaranteed to see a consistent value that cannot be modified by the
timeout path.
Fixes: 921fc1838fb0 ("spi: tegra210-quad: Add support for Tegra210 QSPI controller")
Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20260126-tegra_xfer-v2-2-6d2115e4f387@debian.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit aabd8ea0aa253d40cf5f20a609fc3d6f61e38299 ]
When the ISR thread wakes up late and finds that the timeout handler
has already processed the transfer (curr_xfer is NULL), return
IRQ_HANDLED instead of IRQ_NONE.
Use a similar approach to tegra_qspi_handle_timeout() by reading
QSPI_TRANS_STATUS and checking the QSPI_RDY bit to determine if the
hardware actually completed the transfer. If QSPI_RDY is set, the
interrupt was legitimate and triggered by real hardware activity.
The fact that the timeout path handled it first doesn't make it
spurious. Returning IRQ_NONE incorrectly suggests the interrupt
wasn't for this device, which can cause issues with shared interrupt
lines and interrupt accounting.
Fixes: b4e002d8a7ce ("spi: tegra210-quad: Fix timeout handling")
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Usama Arif <usamaarif642@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patch.msgid.link/20260126-tegra_xfer-v2-1-6d2115e4f387@debian.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c7db85d579a1dccb624235534508c75fbf2dfe46 ]
The gve driver's "rx_dropped" statistic, exposed via `ethtool -S`,
incorrectly includes `rx_buf_alloc_fail` counts. These failures
represent an inability to allocate receive buffers, not true packet
drops where a received packet is discarded. This misrepresentation can
lead to inaccurate diagnostics.
This patch rectifies the ethtool "rx_dropped" calculation. It removes
`rx_buf_alloc_fail` from the total and adds `xdp_tx_errors` and
`xdp_redirect_errors`, which represent legitimate packet drops within
the XDP path.
Cc: stable@vger.kernel.org
Fixes: 433e274b8f7b ("gve: Add stats for gve.")
Signed-off-by: Max Yuan <maxyuan@google.com>
Reviewed-by: Jordan Rhee <jordanrhee@google.com>
Reviewed-by: Joshua Washington <joshwash@google.com>
Reviewed-by: Matt Olson <maolson@google.com>
Signed-off-by: Harshitha Ramamurthy <hramamurthy@google.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260202193925.3106272-3-hramamurthy@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 831a2b27914cc880130ffe8fb8d1e65a5324d07f ]
This is a printf-style function, which gcc -Werror=suggest-attribute=format
correctly points out:
drivers/hwmon/occ/common.c: In function 'occ_init_attribute':
drivers/hwmon/occ/common.c:761:9: error: function 'occ_init_attribute' might be a candidate for 'gnu_printf' format attribute [-Werror=suggest-attribute=format]
Add the attribute to avoid this warning and ensure any incorrect
format strings are detected here.
Fixes: 744c2fe950e9 ("hwmon: (occ) Rework attribute registration for stack usage")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20260203163440.2674340-1-arnd@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 0e0c8f4d16de92520623aa1ea485cadbf64e6929 ]
The mgag200_bmc_stop_scanout() function is called by the .atomic_disable()
handler for the MGA G200 VGA BMC encoder. This function performs a few
register writes to inform the BMC of an upcoming mode change, and then
polls to wait until the BMC actually stops.
The polling is implemented using a busy loop with udelay() and an iteration
timeout of 300, resulting in the function blocking for 300 milliseconds.
The function gets called ultimately by the output_poll_execute work thread
for the DRM output change polling thread of the mgag200 driver:
kworker/0:0-mm_ 3528 [000] 4555.315364:
ffffffffaa0e25b3 delay_halt.part.0+0x33
ffffffffc03f6188 mgag200_bmc_stop_scanout+0x178
ffffffffc087ae7a disable_outputs+0x12a
ffffffffc087c12a drm_atomic_helper_commit_tail+0x1a
ffffffffc03fa7b6 mgag200_mode_config_helper_atomic_commit_tail+0x26
ffffffffc087c9c1 commit_tail+0x91
ffffffffc087d51b drm_atomic_helper_commit+0x11b
ffffffffc0509694 drm_atomic_commit+0xa4
ffffffffc05105e8 drm_client_modeset_commit_atomic+0x1e8
ffffffffc0510ce6 drm_client_modeset_commit_locked+0x56
ffffffffc0510e24 drm_client_modeset_commit+0x24
ffffffffc088a743 __drm_fb_helper_restore_fbdev_mode_unlocked+0x93
ffffffffc088a683 drm_fb_helper_hotplug_event+0xe3
ffffffffc050f8aa drm_client_dev_hotplug+0x9a
ffffffffc088555a output_poll_execute+0x29a
ffffffffa9b35924 process_one_work+0x194
ffffffffa9b364ee worker_thread+0x2fe
ffffffffa9b3ecad kthread+0xdd
ffffffffa9a08549 ret_from_fork+0x29
On a server running ptp4l with the mgag200 driver loaded, we found that
ptp4l would sometimes get blocked from execution because of this busy
waiting loop.
Every so often, approximately once every 20 minutes -- though with large
variance -- the output_poll_execute() thread would detect some sort of
change that required performing a hotplug event which results in attempting
to stop the BMC scanout, resulting in a 300msec delay on one CPU.
On this system, ptp4l was pinned to a single CPU. When the
output_poll_execute() thread ran on that CPU, it blocked ptp4l from
executing for its 300 millisecond duration.
This resulted in PTP service disruptions such as failure to send a SYNC
message on time, failure to handle ANNOUNCE messages on time, and clock
check warnings from the application. All of this despite the application
being configured with FIFO_RT and a higher priority than the background
workqueue tasks. (However, note that the kernel did not use
CONFIG_PREEMPT...)
It is unclear if the event is due to a faulty VGA connection, another bug,
or actual events causing a change in the connection. At least on the system
under test it is not a one-time event and consistently causes disruption to
the time sensitive applications.
The function has some helpful comments explaining what steps it is
attempting to take. In particular, step 3a and 3b are explained as such:
3a - The third step is to verify if there is an active scan. We are
waiting on a 0 on remhsyncsts (<XSPAREREG<0>.
3b - This step occurs only if the remove is actually scanning. We are
waiting for the end of the frame which is a 1 on remvsyncsts
(<XSPAREREG<1>).
The actual steps 3a and 3b are implemented as while loops with a
non-sleeping udelay(). The first step iterates while the tmp value at
position 0 is *not* set. That is, it keeps iterating as long as the bit is
zero. If the bit is already 0 (because there is no active scan), it will
iterate the entire 300 attempts which wastes 300 milliseconds in total.
This is opposite of what the description claims.
The step 3b logic only executes if we do not iterate over the entire 300
attempts in the first loop. If it does trigger, it is trying to check and
wait for a 1 on the remvsyncsts. However, again the condition is actually
inverted and it will loop as long as the bit is 1, stopping once it hits
zero (rather than the explained attempt to wait until we see a 1).
Worse, both loops are implemented using non-sleeping waits which spin
instead of allowing the scheduler to run other processes. If the kernel is
not configured to allow arbitrary preemption, it will waste valuable CPU
time doing nothing.
There does not appear to be any documentation for the BMC register
interface, beyond what is in the comments here. It seems more probable that
the comment here is correct and the implementation accidentally got
inverted from the intended logic.
Reading through other DRM driver implementations, it does not appear that
the .atomic_enable or .atomic_disable handlers need to delay instead of
sleep. For example, the ast_astdp_encoder_helper_atomic_disable() function
calls ast_dp_set_phy_sleep() which uses msleep(). The "atomic" in the name
is referring to the atomic modesetting support, which is the support to
enable atomic configuration from userspace, and not to the "atomic context"
of the kernel. There is no reason to use udelay() here if a sleep would be
sufficient.
Replace the while loops with a read_poll_timeout() based implementation
that will sleep between iterations, and which stops polling once the
condition is met (instead of looping as long as the condition is met). This
aligns with the commented behavior and avoids blocking on the CPU while
doing nothing.
Note the RREG_DAC is implemented using a statement expression to allow
working properly with the read_poll_timeout family of functions. The other
RREG_<TYPE> macros ought to be cleaned up to have better semantics, and
several places in the mgag200 driver could make use of RREG_DAC or similar
RREG_* macros should likely be cleaned up for better semantics as well, but
that task has been left as a future cleanup for a non-bugfix.
Fixes: 414c45310625 ("mgag200: initial g200se driver (v2)")
Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260202-jk-mgag200-fix-bad-udelay-v2-1-ce1e9665987d@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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devm_gpiod_get_optional() in adin1110_check_spi()
[ Upstream commit 78211543d2e44f84093049b4ef5f5bfa535f4645 ]
The devm_gpiod_get_optional() function may return an ERR_PTR in case of
genuine GPIO acquisition errors, not just NULL which indicates the
legitimate absence of an optional GPIO.
Add an IS_ERR() check after the call in adin1110_check_spi(). On error,
return the error code to ensure proper failure handling rather than
proceeding with invalid pointers.
Fixes: 36934cac7aaf ("net: ethernet: adi: adin1110: add reset GPIO")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20260202040228.4129097-1-nichen@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f8db6475a83649689c087a8f52486fcc53e627e9 ]
valis provided a nice repro to crash the kernel:
ip link add p1 type veth peer p2
ip link set address 00:00:00:00:00:20 dev p1
ip link set up dev p1
ip link set up dev p2
ip link add mv0 link p2 type macvlan mode source
ip link add invalid% link p2 type macvlan mode source macaddr add 00:00:00:00:00:20
ping -c1 -I p1 1.2.3.4
He also gave a very detailed analysis:
<quote valis>
The issue is triggered when a new macvlan link is created with
MACVLAN_MODE_SOURCE mode and MACVLAN_MACADDR_ADD (or
MACVLAN_MACADDR_SET) parameter, lower device already has a macvlan
port and register_netdevice() called from macvlan_common_newlink()
fails (e.g. because of the invalid link name).
In this case macvlan_hash_add_source is called from
macvlan_change_sources() / macvlan_common_newlink():
This adds a reference to vlan to the port's vlan_source_hash using
macvlan_source_entry.
vlan is a pointer to the priv data of the link that is being created.
When register_netdevice() fails, the error is returned from
macvlan_newlink() to rtnl_newlink_create():
if (ops->newlink)
err = ops->newlink(dev, ¶ms, extack);
else
err = register_netdevice(dev);
if (err < 0) {
free_netdev(dev);
goto out;
}
and free_netdev() is called, causing a kvfree() on the struct
net_device that is still referenced in the source entry attached to
the lower device's macvlan port.
Now all packets sent on the macvlan port with a matching source mac
address will trigger a use-after-free in macvlan_forward_source().
</quote valis>
With all that, my fix is to make sure we call macvlan_flush_sources()
regardless of @create value whenever "goto destroy_macvlan_port;"
path is taken.
Many thanks to valis for following up on this issue.
Fixes: aa5fd0fb7748 ("driver: macvlan: Destroy new macvlan port if macvlan_common_newlink failed.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: valis <sec@valis.email>
Reported-by: syzbot+7182fbe91e58602ec1fe@syzkaller.appspotmail.com
Closes: https: //lore.kernel.org/netdev/695fb1e8.050a0220.1c677c.039f.GAE@google.com/T/#u
Cc: Boudewijn van der Heide <boudewijn@delta-utec.com>
Link: https://patch.msgid.link/20260129204359.632556-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 31a7a0bbeb006bac2d9c81a2874825025214b6d8 ]
The IRQ handler extracts if_id from the upper 16 bits of the hardware
status register and uses it to index into ethsw->ports[] without
validation. Since if_id can be any 16-bit value (0-65535) but the ports
array is only allocated with sw_attr.num_ifs elements, this can lead to
an out-of-bounds read potentially.
Add a bounds check before accessing the array, consistent with the
existing validation in dpaa2_switch_rx().
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Reported-by: Junrui Luo <moonafterrain@outlook.com>
Fixes: 24ab724f8a46 ("dpaa2-switch: use the port index in the IRQ handler")
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Link: https://patch.msgid.link/SYBPR01MB7881D420AB43FF1A227B84AFAF91A@SYBPR01MB7881.ausprd01.prod.outlook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 6cbba46934aefdfb5d171e0a95aec06c24f7ca30 ]
In setup_nic_devices(), the initialization loop jumps to the label
setup_nic_dev_free on failure. The current cleanup loop while(i--)
skip the failing index i, causing a memory leak.
Fix this by changing the loop to iterate from the current index i
down to 0.
Compile tested only. Issue found using code review.
Fixes: 846b46873eeb ("liquidio CN23XX: VF offload features")
Suggested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20260128154440.278369-4-zilin@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 8558aef4e8a1a83049ab906d21d391093cfa7e7f ]
In setup_nic_devices(), the initialization loop jumps to the label
setup_nic_dev_free on failure. The current cleanup loop while(i--)
skip the failing index i, causing a memory leak.
Fix this by changing the loop to iterate from the current index i
down to 0.
Also, decrement i in the devlink_alloc failure path to point to the
last successfully allocated index.
Compile tested only. Issue found using code review.
Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters")
Suggested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20260128154440.278369-3-zilin@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 926ede0c85e1e57c97d64d9612455267d597bb2c ]
In setup_nic_devices(), the netdev is allocated using alloc_etherdev_mq().
However, the pointer to this structure is stored in oct->props[i].netdev
only after the calls to netif_set_real_num_rx_queues() and
netif_set_real_num_tx_queues().
If either of these functions fails, setup_nic_devices() returns an error
without freeing the allocated netdev. Since oct->props[i].netdev is still
NULL at this point, the cleanup function liquidio_destroy_nic_device()
will fail to find and free the netdev, resulting in a memory leak.
Fix this by initializing oct->props[i].netdev before calling the queue
setup functions. This ensures that the netdev is properly accessible for
cleanup in case of errors.
Compile tested only. Issue found using a prototype static analysis tool
and code review.
Fixes: c33c997346c3 ("liquidio: enhanced ethtool --set-channels feature")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20260128154440.278369-2-zilin@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ed48a84a72fefb20a82dd90a7caa7807e90c6f66 ]
The driver allocates arrays for ports, FDBs, and filter blocks using
kcalloc() with ethsw->sw_attr.num_ifs as the element count. When the
device reports zero interfaces (either due to hardware configuration
or firmware issues), kcalloc(0, ...) returns ZERO_SIZE_PTR (0x10)
instead of NULL.
Later in dpaa2_switch_probe(), the NAPI initialization unconditionally
accesses ethsw->ports[0]->netdev, which attempts to dereference
ZERO_SIZE_PTR (address 0x10), resulting in a kernel panic.
Add a check to ensure num_ifs is greater than zero after retrieving
device attributes. This prevents the zero-sized allocations and
subsequent invalid pointer dereference.
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Reported-by: Junrui Luo <moonafterrain@outlook.com>
Fixes: 0b1b71370458 ("staging: dpaa2-switch: handle Rx path on control interface")
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/SYBPR01MB7881BEABA8DA896947962470AF91A@SYBPR01MB7881.ausprd01.prod.outlook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 6222883af286e2feb3c9ff2bf9fd8fdf4220c55a ]
Avoid registering kobjects with empty names when a BIOS attribute
name decodes to an empty string.
Fixes: a34fc329b1895 ("platform/x86: hp-bioscfg: bioscfg")
Reported-by: Alain Cousinie <alain.cousinie@laposte.net>
Closes: https://lore.kernel.org/platform-driver-x86/22ed5f78-c8bf-4ab4-8c38-420cc0201e7e@laposte.net/
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20260128190501.2170068-1-mario.limonciello@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 39e9c376ac42705af4ed4ae39eec028e8bced9b4 ]
The PSS telemetry info parsing incorrectly applies
TELEM_INFO_SRAMEVTS_MASK when extracting event register
count from firmware response. This reads bits 15-8 instead
of the correct bits 7-0, causing misdetection of hardware
capabilities.
The IOSS path correctly uses TELEM_INFO_NENABLES_MASK for
register count. Apply the same mask to PSS parsing for
consistency.
Fixes: 9d16b482b059 ("platform:x86: Add Intel telemetry platform driver")
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Link: https://patch.msgid.link/20251224061144.3925519-1-kaushlendra.kumar@intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 128497456756e1b952bd5a912cd073836465109d ]
toshiba_haps_add() leaks the haps object allocated by it if it returns
an error after allocating that object successfully.
toshiba_haps_remove() does not free the object pointed to by
toshiba_haps before clearing that pointer, so it becomes unreachable
allocated memory.
Address these memory leaks by using devm_kzalloc() for allocating
the memory in question.
Fixes: 23d0ba0c908a ("platform/x86: Toshiba HDD Active Protection Sensor")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9411a89e9e7135cc459178fa77a3f1d6191ae903 ]
In iscsit_dec_conn_usage_count(), the function calls complete() while
holding the conn->conn_usage_lock. As soon as complete() is invoked, the
waiter (such as iscsit_close_connection()) may wake up and proceed to free
the iscsit_conn structure.
If the waiter frees the memory before the current thread reaches
spin_unlock_bh(), it results in a KASAN slab-use-after-free as the function
attempts to release a lock within the already-freed connection structure.
Fix this by releasing the spinlock before calling complete().
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reported-by: Zhaojuan Guo <zguo@redhat.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Link: https://patch.msgid.link/20260112165352.138606-2-mlombard@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 84dc6037390b8607c5551047d3970336cb51ba9a ]
In iscsit_dec_session_usage_count(), the function calls complete() while
holding the sess->session_usage_lock. Similar to the connection usage count
logic, the waiter signaled by complete() (e.g., in the session release
path) may wake up and free the iscsit_session structure immediately.
This creates a race condition where the current thread may attempt to
execute spin_unlock_bh() on a session structure that has already been
deallocated, resulting in a KASAN slab-use-after-free.
To resolve this, release the session_usage_lock before calling complete()
to ensure all dereferences of the sess pointer are finished before the
waiter is allowed to proceed with deallocation.
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reported-by: Zhaojuan Guo <zguo@redhat.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Link: https://patch.msgid.link/20260112165352.138606-3-mlombard@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8 ]
regcache_maple_write() allocates a new block ('entry') to merge
adjacent ranges and then stores it with mas_store_gfp().
When mas_store_gfp() fails, the new 'entry' remains allocated and
is never freed, leaking memory.
Free 'entry' on the failure path; on success continue freeing the
replaced neighbor blocks ('lower', 'upper').
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Link: https://patch.msgid.link/20260105031820.260119-1-kaushlendra.kumar@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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initialization
[ Upstream commit b062a899c997df7b9ce29c62164888baa7a85833 ]
In hisi_spi_debugfs_init, spi controller pointer is calculated
by container_of macro, and the member is hs->dev. But the host
cannot be calculated offset directly by this. (hs->dev) points
to (pdev->dev), and it is the (host->dev.parent) rather than
(host->dev) points to the (pdev->dev), which is set in
__spi_alloc_controller.
In this patch, this issues is fixed by getting the spi_controller
data from pdev->dev by dev_get_drvdata() directly. (dev->driver_data)
points to the spi controller data in the probe stage.
Signed-off-by: Devyn Liu <liudingyuan@h-partners.com>
Reviewed-by: Yang Shen <shenyang39@huawei.com>
Link: https://patch.msgid.link/20260108075323.3831574-1-liudingyuan@h-partners.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 2fa8961d3a6a1c2395d8d560ffed2c782681bade ]
When the socket is closed while in TCP_LISTEN a callback is run to
flush all outstanding packets, which in turns calls
nvmet_tcp_listen_data_ready() with the sk_callback_lock held.
So we need to check if we are in TCP_LISTEN before attempting
to get the sk_callback_lock() to avoid a deadlock.
Link: https://lore.kernel.org/linux-nvme/CAHj4cs-zu7eVB78yUpFjVe2UqMWFkLk8p+DaS3qj+uiGCXBAoA@mail.gmail.com/
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit d1877cc7270302081a315a81a0ee8331f19f95c8 ]
nvme_fabrics creates an NVMe/FC controller in following path:
nvmf_dev_write()
-> nvmf_create_ctrl()
-> nvme_fc_create_ctrl()
-> nvme_fc_init_ctrl()
nvme_fc_init_ctrl() allocates the admin blk-mq resources right after
nvme_add_ctrl() succeeds. If any of the subsequent steps fail (changing
the controller state, scheduling connect work, etc.), we jump to the
fail_ctrl path, which tears down the controller references but never
frees the admin queue/tag set. The leaked blk-mq allocations match the
kmemleak report seen during blktests nvme/fc.
Check ctrl->ctrl.admin_tagset in the fail_ctrl path and call
nvme_remove_admin_tag_set() when it is set so that all admin queue
allocations are reclaimed whenever controller setup aborts.
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Reviewed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Chaitanya Kulkarni <ckulkarnilinux@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 85a866809333cd2bf8ddac93d9a3e3ba8e4f807d ]
The USB speaker has a bug that causes it to reboot when changing the
brightness using the physical knob.
Add a new vendor and product ID entry in hid-ids.h, and register
the corresponding device in hid-quirks.c with the required quirk.
Signed-off-by: Rodrigo Lugathe da Conceição Alves <lugathe2@gmail.com>
Reviewed-by: Terry Junge <linuxhid@cosmicgizmosystems.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 2497ff38c530b1af0df5130ca9f5ab22c5e92f29 ]
`i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data
into `ihid->rawbuf`.
The former can come from the userspace in the hidraw driver and is only
bounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set
`max_buffer_size` field of `struct hid_ll_driver` which we do not).
The latter has size determined at runtime by the maximum size of
different report types you could receive on any particular device and
can be a much smaller value.
Fix this by truncating `recv_len` to `ihid->bufsize - sizeof(__le16)`.
The impact is low since access to hidraw devices requires root.
Signed-off-by: Kwok Kin Ming <kenkinming2002@gmail.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c06bc3557542307b9658fbd43cc946a14250347b ]
Another Chicony Electronics HP 5MP Camera with USB ID 04F2:B882
reports a HID sensor interface that is not actually implemented.
Add the device to the HID ignore list so the bogus sensor is never
exposed to userspace. Then the system won't hang when runtime PM
tries to wake the unresponsive device.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit e9143268d259d98e111a649affa061acb8e13c5b ]
When a new PlayStation gamepad (DualShock 4 or DualSense) is initialized,
the input subsystem sets the default value for its absolute axes (e.g.,
ABS_X, ABS_Y) to 0.
However, the hardware's actual neutral/resting state for these joysticks
is 128 (0x80). This creates a mismatch.
When the first HID report arrives from the device, the driver sees the
resting value of 128. The kernel compares this to its initial state of 0
and incorrectly interprets this as a delta (0 -> 128). Consequently, it
generates EV_ABS events for this initial, non-existent movement.
This behavior can fail userspace 'sanity check' tests (e.g., in
Android CTS) that correctly assert no motion events should be generated
from a device that is already at rest.
This patch fixes the issue by explicitly setting the initial value of the
main joystick axes (e.g., ABS_X, ABS_Y, ABS_RX, ABS_RY) to 128 (0x80)
in the common ps_gamepad_create() function.
This aligns the kernel's initial state with the hardware's expected
neutral state, ensuring that the first report (at 128) produces no
delta and thus, no spurious event.
Signed-off-by: Siarhei Vishniakou <svv@google.com>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 56e230723e3a818373bd62331bccb1c6d2b3881b ]
Some systems have enabled ISH without any sensors. In this case sending
HOSTIF_DM_ENUM_DEVICES results in 0 sensors. This triggers ISH hardware
reset on subsequent enumeration after S3/S4 resume.
The enum_devices_done flag was not reset before sending the
HOSTIF_DM_ENUM_DEVICES command. On subsequent enumeration calls (such as
after S3/S4 resume), this flag retains its previous true value, causing the
wait loop to be skipped and returning prematurely to hid_ishtp_cl_init().
If 0 HID devices are found, hid_ishtp_cl_init() skips getting HID device
descriptors and sets init_done to true. When the delayed enumeration
response arrives with init_done already true, the driver treats it as a bad
packet and triggers an ISH hardware reset.
Set enum_devices_done to false before sending the enumeration command,
consistent with similar functions like ishtp_get_hid_descriptor() and
ishtp_get_report_descriptor() which reset their respective flags.
Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ff3f234ff1dcd6d626a989151db067a1b7f0f215 ]
Some VTL-class touchpads (e.g. TOPS0102:00 35CC:0104) intermittently
fail to release a finger contact. A previous slot remains logically
active, accompanied by stale BTN_TOOL_DOUBLETAP state, causing
gestures to stay latched and resulting in stuck two-finger
scrolling and false right-clicks.
Apply MT_QUIRK_STICKY_FINGERS to handle the unreleased contact correctly.
Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/1225
Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: DaytonCL <artem749507@gmail.com>
Signed-off-by: DaytonCL <artem749507@gmail.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit daeed86b686855adda79f13729e0c9b0530990be ]
The ishtp_cl_bus_match() function previously only checked the first entry
in the driver's device ID table. Update it to iterate over the entire
table, allowing proper matching for drivers with multiple supported
protocol GUIDs.
Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit bf4172bd870c3a34d3065cbb39192c22cbd7b18d ]
Some SR9700 devices have an SPI flash chip containing a virtual driver
CD, in which case they appear as a device with two interfaces and
product ID 0x9702. Interface 0 is the driver CD and interface 1 is the
Ethernet device.
Link: https://github.com/name-kurniawan/usb-lan
Link: https://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?t=2185
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Link: https://patch.msgid.link/20251211062451.139036-1-enelsonmoore@gmail.com
[pabeni@redhat.com: fixes link tags]
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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