Fedora kernels >= 5.8 have xhci-pci build as a module
Hi All,
5.8 introduces a new CONFIG_USB_XHCI_PCI_RENESAS Kconfig symbol.
The current Fedora kernel config says this to 'm'. I assume that
this was done because the help-text suggests that doing so will
make support for some special XHCI controllers which need to
be "booted" (have firmware loaded) by the kernel modular, while
keeping the generic xhci-pci code builtin so that we start probing
XHCI USB busses ASAP during boot.
But, and this is somewhat of a surprise, the xhci-pci-renesas
code does not use the xhci-pci code as a library on top of
which it builds. Instead it offers some hooks for the xhci-pci
code to call in and having CONFIG_USB_XHCI_PCI_RENESAS set will
thus make xhci-pci.ko depend on xhci-pci-renesas.ko.
Which means that if xhci-pci-renesas.ko is not builtin, this
also forces xhci-pci.ko to not be builtin.
As said I assume that this xhci-pci.ko no longer being builtin
is not intentional, so that the right way to fix this would
be to set CONFIG_USB_XHCI_PCI_RENESAS=y, right ?
This problem is leading to some people not being able to
enter their disk passwords, see:
https://bugzilla.redhat.com/show_bug.cgi?id=1874300
Regards,
Hans