On Fri, May 14, 2021 at 03:03:03PM +0200, Krzysztof Wilczy??ski wrote: > > The pcieport driver can fail to attach to a downstream port that doesn't > > support bandwidth notification. This can happen when, in > > pcie_port_device_register(), pci_init_service_irqs() tries (and fails) to > > set up a bandwidth notification IRQ for a device that doesn't support it. > > > > This patch changes get_port_device_capability() to look at the link > > bandwidth notification capability bit in the link capabilities register of > > the port, instead of assuming that all downstream ports have that > > capability. > > I was wondering - is this fix connected to an issue filled in Bugzilla > or does it fix a known commit that introduced this problem? Basically, > I am trying to see whether a "Fixes:" would be in order. The fix is for a driver which has been removed from the tree (for now), including in stable kernels. The fix will prevent an issue that will occur once the driver is re-introduced (once we've found a way to overcome the issues that led to its removal). A Fixes tag is thus uncalled for. Thanks, Lukas
