Messages in this thread | | | Date | Sat, 19 May 2012 08:45:44 -0700 | From | Randy Dunlap <> | Subject | Re: [PATCH -next] usb: add usb.h stubs for CONFIG_USB not enabled |
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On 05/19/2012 07:16 AM, Sergei Shtylyov wrote:
> Hello. > > On 19-05-2012 6:04, Randy Dunlap wrote: > >> From: Randy Dunlap<rdunlap@xenotime.net> > >> 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@xenotime.net> >> --- >> 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. > >> Documentation/usb/error-codes.txt | 2 ++ >> include/linux/usb.h | 24 +++++++++++++++++++++++- >> 2 files changed, 25 insertions(+), 1 deletion(-) >> >> --- linux-next-20120518.orig/include/linux/usb.h >> +++ linux-next-20120518/include/linux/usb.h >> @@ -10,7 +10,7 @@ >> >> #ifdef __KERNEL__ >> >> -#include<linux/errno.h> /* for -ENODEV */ >> +#include<linux/errno.h> /* for -ENODEV, -ENOSYS */ >> #include<linux/delay.h> /* for mdelay() */ >> #include<linux/interrupt.h> /* for in_interrupt() */ >> #include<linux/list.h> /* for struct list_head */ >> @@ -515,6 +515,8 @@ static inline struct usb_device *interfa >> return to_usb_device(intf->dev.parent); >> } >> >> +#if defined(CONFIG_USB) || defined(CONFIG_USB_MODULE) > > You can use IS_ENABLED(CONFIG_USB) instead of these two now.
I know, but I chose not to do that in case the patch needs to be applied to some earlier kernels.
-- ~Randy
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