Re: [Xen-devel] linux-next: Tree for Oct 24 (xen)

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 24.10.12 at 23:33, Randy Dunlap <rdunlap@xxxxxxxxxxxx> wrote:
> On 10/23/2012 09:19 PM, Stephen Rothwell wrote:
> 
>> Hi all,
>> 
>> Changes since 201201023:
>> 
> 
> on x86_64:
> 
> drivers/built-in.o: In function `dbgp_reset_prep':
> (.text+0xb96b5): undefined reference to `xen_dbgp_reset_prep'
> drivers/built-in.o: In function `dbgp_external_startup':
> (.text+0xb9d95): undefined reference to `xen_dbgp_external_startup'
> 
> 
> Full randconfig file is attached.

So this is because with !USB_SUPPORT but EARLY_PRINTK_DBGP
dbgp_reset_prep() and dbgp_external_startup() get pointlessly
defined and exported. This got broken by the merge
recommendation for the ARM side changes (originally compilation
of drivers/xen/dbgp.c depended on just CONFIG_XEN_DOM0).

>From my pov, fixing the USB side would be the clean solution (i.e.
putting those function definitions inside a CONFIG_USB_SUPPORT
conditional).

The alternative of a smaller change would be to extend the
conditional around the respective xen_dbgp_...() declarations
in include/linux/usb/ehci_def.h to become

#if defined(CONFIG_XEN_DOM0) && defined(CONFIG_USB_SUPPORT)

Please advise towards your preference.

Jan




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