Masahiro Yamada <masahiroy@xxxxxxxxxx> writes: > Please check this: > https://patchwork.kernel.org/patch/11649263/ > > > It will be included in the next pull request, > and eventually back-ported to stable kernels. Thanks. That was really fast! I can confirm that this patch fixes the issue. > Meanwhile, if M= build is not important, > you can compile-test a particular module > with in-tree build: > > > $ make drivers/net/usb/qmi_wwan.ko Yes, I know. I use the M= build to do some basic load/run testing on distro kernels. Which is obviously a best effort thing. But it saves me some time when it works, not needing to build and boot a more recent kernel to just test a simple driver patch. Bjørn