Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx> writes: > Hello Felix, Lorenzo et al. > > With v6.9 kernel the following card: > > 01:00.0 Unclassified device [0002]: MEDIATEK Corp. MT7915E 802.11ax > PCI Express Wireless Network Adapter [14c3:7915] > > doesn't work any more. Upon mt7915e module insertion the following splat happens: > > mt7915e 0000:01:00.0: enabling device (0000 -> 0002) > WARNING: CPU: 3 PID: 1648 at net/mac80211/main.c:794 > ieee80211_alloc_hw_nm+0x9a3/0x9f0 [mac80211] > Call Trace: > <TASK> > mt76_alloc_device+0x24/0x290 [mt76 46e2c4f11be089903469a4d6045c71cb7842b4cd] > mt7915_mmio_probe+0x33/0x1d0 [mt7915e 9657e1926e619568545a08636674805d5e665c85] > mt7915_pci_probe+0xe1/0x3a0 [mt7915e 9657e1926e619568545a08636674805d5e665c85] > pci_device_probe+0xf0/0x2d0 > really_probe+0xde/0x3b0 > __driver_probe_device+0x78/0x110 > driver_probe_device+0x1f/0x130 > __driver_attach+0x91/0x1e0 > bus_for_each_dev+0x105/0x160 > bus_add_driver+0x137/0x270 > driver_register+0x72/0xd0 > mt7915_init+0x44/0xff0 [mt7915e 9657e1926e619568545a08636674805d5e665c85] > do_one_initcall+0x5b/0x310 > do_init_module+0x60/0x220 > init_module_from_file+0x89/0xe0 > idempotent_init_module+0x121/0x2b0 > __x64_sys_finit_module+0x5e/0xb0 > do_syscall_64+0x82/0x160 > entry_SYSCALL_64_after_hwframe+0x76/0x7e > mt7915e 0000:01:00.0: probe with driver mt7915e failed with error -12 > > and the card stays non-functional. Re-inserting the module triggers > the same behaviour. > > The following condition is triggered: > > 794 if (WARN_ON(!ops->add_chanctx || > 795 !ops->remove_chanctx || > 796 !ops->change_chanctx || > 797 !ops->assign_vif_chanctx || > 798 !ops->unassign_vif_chanctx)) > 799 return NULL; > > This worked with v6.8 and earlier just fine. Thanks for the report. I'll add this to regzbot for easier tracking: #regzbot introduced: v6.8..v6.9 ^ -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
