On Sat, 20 Nov 2021 15:30:11 +0800 Peter Chen wrote: > > diff --git a/drivers/usb/cdns3/host.c b/drivers/usb/cdns3/host.c > > index 84dadfa726aa..9643b905e2d8 100644 > > --- a/drivers/usb/cdns3/host.c > > +++ b/drivers/usb/cdns3/host.c > > @@ -10,6 +10,7 @@ > > */ > > > > #include <linux/platform_device.h> > > +#include <linux/slab.h> > > Should be "#include <linux/module.h>"? Why? Different files are missing different includes, this one needs slab.h: ../drivers/usb/cdns3/host.c: In function ‘__cdns_host_init’: ../drivers/usb/cdns3/host.c:86:2: error: implicit declaration of function ‘kfree’; did you mean ‘vfree’? [-Werror=implicit-function-declaration] kfree(cdns->xhci_plat_data); ^~~~~ vfree