On 05/19/2012 07:30 AM, Alan Stern wrote: > On Fri, 18 May 2012, Randy Dunlap wrote: > >> From: Randy Dunlap <rdunlap@xxxxxxxxxxxx> >> >> Add stubs for some usb core functions when CONFIG_USB >> is not enabled. This fixes these comedi build errors: >> >> ERROR: "usb_deregister" [drivers/staging/comedi/comedi.ko] undefined! >> ERROR: "usb_register_driver" [drivers/staging/comedi/comedi.ko] undefined! >> >> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx> >> --- >> I am only adding the stubs that are needed for comedi to build. >> I expect that more stubs will be needed as more build errors are >> found. It seems to me that linux/usb.h might need more (major) >> moving of lines to support more stubs in the future. > > This doesn't seem like the right thing to do. If a driver needs to > register with the USB core then that driver should depend on > CONFIG_USB. > > On the other hand, if the driver is capable of being built without USB > support then it should use the necessary preprocessor tests to protect > calls to any USB routines. Yeah, my first patch (not on linux-usb list) to staging/comedi/drivers.c just surrounded the usb helper functions with IS_ENABLED(CONFIG_USB). I'm fine with that patch, but Greg said that he wanted stubs... -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
