On 11/09/2024 15:32, Greg Kroah-Hartman wrote:
On Tue, Sep 10, 2024 at 02:00:19PM +0100, Jon Hunter wrote:The following error messages are observed on boot with the Tegra234 Jetson AGX Orin board ... tegra-xusb-padctl 3520000.padctl: Failed to create device link (0x180) with 1-0008 tegra-xusb-padctl 3520000.padctl: Failed to create device link (0x180) with 1-0008 tegra-xusb-padctl 3520000.padctl: Failed to create device link (0x180) with 1-0008 In the above case, device_link_add() intentionally returns NULL because these are SYNC_STATE_ONLY links and the device is already probed. Therefore, the above messages are not actually errors. Fix this by replicating the test from device_link_add() in the function fw_devlink_create_devlink() and don't call device_link_add() if there are no links to create. Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>What commit id does this fix?
Hard to say exactly. The above error message was first added with commit 3fb16866b51d ("driver core: fw_devlink: Make cycle detection more robust") but at this time we did not have the support in place for Tegra234 USB. I am guessing we first started seeing this when I enabled support for the type-c controller in commit 16744314ee57 ("arm64: tegra: Populate USB Type-C Controller for Jetson AGX Orin"). I can confirm if that is helpful?
Jon -- nvpublic
