This appears to be triggered by commit 4f73581836f031611b281c8c6017202f36afbf6b, the change is reported as a bug in the 5.13 kernel as well and appears to have been brought into the 5.11 HWE kernel.
https://bugzilla.kernel.org/show_bug.cgi?id=214455 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1950492 Title: wifi stops working on Dell XPS 9310 Status in linux package in Ubuntu: Incomplete Bug description: After updating to linux 5.13.0-22 wifi stops working on Dell XPS 9310 with QCA6390. There are two errors in dmesg: 1. mhi: qcom_mhi_qrtr mhi0_IPCR: invalid ipcrouter packet 2. ath11k ath11k_pci 0000:72:00.0: failed to register fw indication: -110 ath11k_pci 0000:72:00.0: failed to send qmi firmware indication: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1950492/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
