From: Chris Bainbridge <chris.bainbridge@gmail.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>,
"kvalo@kernel.org" <kvalo@kernel.org>,
"Korenblit, Miriam Rachel" <miriam.rachel.korenblit@intel.com>,
"Berg, Johannes" <johannes.berg@intel.com>,
"benjamin@sipsolutions.net" <benjamin@sipsolutions.net>,
Krishnanand Prabhu <krishnanand.prabhu@intel.com>,
Avraham Stern <avraham.stern@intel.com>
Subject: iwlwifi: WARNING at iwl_mvm_ptp_init / ptp_clock_register
Date: Sat, 13 Dec 2025 15:15:21 +0000 [thread overview]
Message-ID: <aT2DCbFNfTWXYXvi@debian.local> (raw)
A new warning has recently appeared due to commit:
commit dfb073d32cac28cdb597d16d1e0589b25c841661
Author: Tim Hostetler <thostet@google.com>
Date: Tue Nov 4 14:59:15 2025 -0800
ptp: Return -EINVAL on ptp_clock_register if required ops are NULL
ptp_clock should never be registered unless it stubs one of gettimex64()
or gettime64() and settime64(). WARN_ON_ONCE and error out if either set
of function pointers is null.
For consistency, n_alarm validation is also folded into the
WARN_ON_ONCE.
Log:
[ 18.420114] ------------[ cut here ]------------
[ 18.420121] WARNING: drivers/ptp/ptp_clock.c:325 at ptp_clock_register+0x129/0x7f0, CPU#14: NetworkManager/1568
[ 18.420127] Modules linked in: qrtr rfcomm cmac algif_hash algif_skcipher af_alg bnep binfmt_misc ext4 mbcache jbd2 nls_ascii nls_cp437 vfat fat iwlmvm snd_hda_codec_generic snd_hda_codec_hdmi intel_rapl_msr amd_atl mac80211 intel_rapl_common snd_hda_intel libarc4 btusb uvcvideo snd_hda_codec btrtl videobuf2_vmalloc btintel snd_intel_dspcfg videobuf2_memops btbcm snd_hwdep kvm_amd uvc btmtk videobuf2_v4l2 iwlwifi snd_hda_core snd_hda_scodec_cs35l41_i2c bluetooth videodev snd_pcm kvm snd_hda_scodec_cs35l41 cfg80211 snd_soc_cs_amp_lib videobuf2_common snd_timer cs_dsp ideapad_laptop irqbypass ecdh_generic ecc sparse_keymap rapl mc wmi_bmof platform_profile ee1004 snd_soc_cs35l41_lib pcspkr snd k10temp ccp battery rfkill sg soundcore cm32181 industrialio serial_multi_instantiate ac joydev evdev msr parport_pc ppdev lp parport nvme_fabrics fuse efi_pstore configfs nfnetlink efivarfs autofs4 crc32c_cryptoapi btrfs blake2b libblake2b xor raid6_pq dm_crypt sd_mod uas usbhid usb_storage amdgpu nouveau drm_gpuvm mxm_wmi
[ 18.420214] drm_client_lib i2c_algo_bit sp5100_tco dm_mod drm_suballoc_helper drm_ttm_helper drm_buddy ahci i2c_piix4 ttm drm_panel_backlight_quirks drm_exec libahci gpu_sched amdxcp r8169 ucsi_acpi libata hid_multitouch drm_display_helper typec_ucsi realtek hid_generic scsi_mod drm_kms_helper roles xhci_pci wdat_wdt mdio_devres xhci_hcd typec video nvme ghash_clmulni_intel cec serio_raw scsi_common watchdog i2c_hid_acpi crc16 i2c_smbus libphy usbcore thunderbolt mdio_bus nvme_core rc_core i2c_hid usb_common hid wmi drm button aesni_intel
[ 18.420260] CPU: 14 UID: 0 PID: 1568 Comm: NetworkManager Not tainted 6.18.0-12692-gcb015814f8b6 #224 PREEMPT(voluntary)
[ 18.420262] Hardware name: LENOVO 82N6/LNVNB161216, BIOS GKCN65WW 01/16/2024
[ 18.420264] RIP: 0010:ptp_clock_register+0x129/0x7f0
[ 18.420267] Code: c7 40 76 a8 87 41 89 c4 e8 e4 ff 32 00 45 85 e4 74 4c 49 63 ec 4c 89 ff e8 a4 88 a2 ff eb 14 48 83 7f 78 00 0f 85 41 ff ff ff <0f> 0b 48 c7 c5 ea ff ff ff 48 8b 84 24 88 00 00 00 65 48 2b 05 4e
[ 18.420268] RSP: 0018:ffffb84b805473f0 EFLAGS: 00010246
[ 18.420271] RAX: 0000000000000000 RBX: ffff9e8e49625de8 RCX: ffffb84b80547404
[ 18.420272] RDX: 0000000000000003 RSI: ffff9e8e42cc30c8 RDI: ffff9e8e49625de8
[ 18.420273] RBP: ffff9e8e42cc30c8 R08: 0000000000000001 R09: ffffffff8780d200
[ 18.420274] R10: 000000000000092c R11: 0000000000000003 R12: ffff9e8e496230e8
[ 18.420276] R13: 000000000f700000 R14: ffff9e8e496230e8 R15: ffff9e8e49623118
[ 18.420277] FS: 00007f7cfe3d3580(0000) GS:ffff9e94c9e82000(0000) knlGS:0000000000000000
[ 18.420278] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.420280] CR2: 00000000169d40c8 CR3: 000000010f5e1000 CR4: 0000000000750ef0
[ 18.420281] PKRU: 55555554
[ 18.420282] Call Trace:
[ 18.420284] <TASK>
[ 18.420285] ? lock_release+0x17b/0x2a0
[ 18.420291] ? queue_work_node+0x150/0x150
[ 18.420294] ? is_module_address+0x6a/0xf0
[ 18.420297] ? static_obj+0x67/0x90
[ 18.420299] ? lockdep_init_map_type+0x58/0x240
[ 18.420304] iwl_mvm_ptp_init+0x102/0x150 [iwlmvm]
[ 18.420315] iwl_mvm_up+0x874/0x910 [iwlmvm]
[ 18.420323] ? __mutex_lock+0x288/0x1090
[ 18.420329] ? lock_is_held_type+0xd5/0x130
[ 18.420333] __iwl_mvm_mac_start+0x82/0x2c0 [iwlmvm]
[ 18.420341] iwl_mvm_mac_start+0x4b/0xe0 [iwlmvm]
[ 18.420348] drv_start+0x6f/0x1a0 [mac80211]
[ 18.420378] ieee80211_do_open+0x2d3/0x920 [mac80211]
[ 18.420403] ieee80211_open+0x8a/0x90 [mac80211]
[ 18.420422] __dev_open+0x118/0x270
[ 18.420427] __dev_change_flags+0x21a/0x250
[ 18.420432] netif_change_flags+0x22/0x60
[ 18.420435] do_setlink.isra.0+0x34f/0x1190
[ 18.420438] ? lock_acquire+0xe1/0x2d0
[ 18.420443] ? rcu_is_watching+0xd/0x40
[ 18.420446] ? __mutex_lock+0x288/0x1090
[ 18.420447] ? __nla_validate_parse+0x5e/0xb60
[ 18.420451] ? rtnl_newlink+0x381/0xb90
[ 18.420458] rtnl_newlink+0x853/0xb90
[ 18.420463] ? __lock_acquire+0x459/0x2170
[ 18.420470] ? find_held_lock+0x2b/0x80
[ 18.420472] ? rtnetlink_rcv_msg+0x3e6/0x660
[ 18.420474] ? rtnetlink_rcv_msg+0x3e6/0x660
[ 18.420477] ? lock_release+0x17b/0x2a0
[ 18.420479] ? do_setlink.isra.0+0x1190/0x1190
[ 18.420482] rtnetlink_rcv_msg+0x405/0x660
[ 18.420488] ? rtnl_fdb_dump+0x230/0x230
[ 18.420491] netlink_rcv_skb+0x4b/0xf0
[ 18.420499] netlink_unicast+0x1f5/0x2d0
[ 18.420501] ? __virt_addr_valid+0x112/0x2e0
[ 18.420506] netlink_sendmsg+0x216/0x450
[ 18.420511] __sock_sendmsg+0x38/0x70
[ 18.420515] ____sys_sendmsg+0x23f/0x290
[ 18.420517] ? import_iovec+0x2b/0x30
[ 18.420522] ___sys_sendmsg+0x99/0xe0
[ 18.420534] ? __fget_files+0xc3/0x180
[ 18.420538] __sys_sendmsg+0x84/0xe0
[ 18.420546] do_syscall_64+0x95/0x7d0
[ 18.420548] ? do_syscall_64+0x1dc/0x7d0
[ 18.420550] ? fput+0x3b/0x90
[ 18.420553] ? entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.420555] ? lockdep_hardirqs_on+0x78/0x100
[ 18.420558] ? do_syscall_64+0x1dc/0x7d0
[ 18.420560] ? lockdep_hardirqs_on_prepare+0xce/0x190
[ 18.420562] ? irqentry_exit+0xec/0x660
[ 18.420566] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.420567] RIP: 0033:0x7f7cff6a49ee
[ 18.420570] Code: 08 0f 85 f5 4b ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[ 18.420571] RSP: 002b:00007ffc0321c9b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 18.420574] RAX: ffffffffffffffda RBX: 00007f7cfe3d3580 RCX: 00007f7cff6a49ee
[ 18.420575] RDX: 0000000000000000 RSI: 00007ffc0321ca40 RDI: 000000000000000d
[ 18.420576] RBP: 00007ffc0321ca40 R08: 0000000000000000 R09: 0000000000000000
[ 18.420577] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000001a
[ 18.420578] R13: 00007ffc0321cc38 R14: 00007ffc0321cc2c R15: 0000000000000000
[ 18.420586] </TASK>
[ 18.420587] irq event stamp: 112525
[ 18.420588] hardirqs last enabled at (112531): [<ffffffff8659c93e>] __up_console_sem+0x5e/0x70
[ 18.420591] hardirqs last disabled at (112536): [<ffffffff8659c923>] __up_console_sem+0x43/0x70
[ 18.420593] softirqs last enabled at (111048): [<ffffffff86e5abba>] __alloc_skb+0x18a/0x1f0
[ 18.420595] softirqs last disabled at (111046): [<ffffffff86e5abba>] __alloc_skb+0x18a/0x1f0
[ 18.420597] ---[ end trace 0000000000000000 ]---
reply other threads:[~2025-12-13 15:15 UTC|newest]
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