Messages in this thread | | | Date | Sat, 19 May 2012 18:16:45 +0400 | From | Sergei Shtylyov <> | Subject | Re: [PATCH -next] usb: add usb.h stubs for CONFIG_USB not enabled |
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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.
WBR, Sergei
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