** Description changed: [Impact] - The xr-usb-serial custom (downstream vendor) driver was added in Xenial LTS kernel + The xr-usb-serial custom (downstream vendor) driver was added in Xenial LTS kernel to add support for USB UART chips: Family: USB UART Part Numbers: - XR21V1410, XR21V1412, XR21V1414, - XR21B1411, XR21B1420, XR21B1422, - XR21B1424, XR22801, XR22802, - XR22804 + XR21V1410, XR21V1412, XR21V1414, + XR21B1411, XR21B1420, XR21B1422, + XR21B1424, XR22801, XR22802, + XR22804 [Fix] In 5.13.x, support for these devices was added to the kernel via. following patch series: Link: https://lore.kernel.org/all/20210412095557.1213-1-jo...@kernel.org/ There have been long term maintenance challenges with the downstream vendor driver - over the period of time (since 4.4.y based Xenial LTS). Now that upstream driver + over the period of time (since 4.4.y based Xenial LTS). Now that upstream driver supports most of the above part numbers, let's remove this redundant out-of-tree driver. [Test] The driver was functionally verified to work fine with XR21V1412. The support for - other chips with part numbers mentioned above are also supported with the above + other chips with part numbers mentioned above are also supported with the above patch series. [Where problems could occur] - Low. The downstream driver was designed to work with specific BIOS configs only + The downstream driver was designed to work with specific BIOS configs only defined on an IoT GW project which is locked to use only Xenial ESM and Bionic LTS kernels, there is a low chance of regression on the Impish series.
-- 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/1945938 Title: [impish] Remove the downstream xr-usb-uart driver Status in linux package in Ubuntu: Confirmed Status in linux source package in Impish: Confirmed Bug description: [Impact] The xr-usb-serial custom (downstream vendor) driver was added in Xenial LTS kernel to add support for USB UART chips: Family: USB UART Part Numbers: XR21V1410, XR21V1412, XR21V1414, XR21B1411, XR21B1420, XR21B1422, XR21B1424, XR22801, XR22802, XR22804 [Fix] In 5.13.x, support for these devices was added to the kernel via. following patch series: Link: https://lore.kernel.org/all/20210412095557.1213-1-jo...@kernel.org/ There have been long term maintenance challenges with the downstream vendor driver over the period of time (since 4.4.y based Xenial LTS). Now that upstream driver supports most of the above part numbers, let's remove this redundant out-of-tree driver. [Test] The driver was functionally verified to work fine with XR21V1412. The support for other chips with part numbers mentioned above are also supported with the above patch series. [Where problems could occur] The downstream driver was designed to work with specific BIOS configs only defined on an IoT GW project which is locked to use only Xenial ESM and Bionic LTS kernels, there is a low chance of regression on the Impish series. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1945938/+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
