Re: [Xen-devel] BUG: ARM build failures due to Xen

[Arnd Bergmann <arnd@xxxxxxxx>]

On Tuesday 06 November 2012, Russell King - ARM Linux wrote:
> My build system is giving me the following errors against an OMAP4
> randconfig build against the latest Linus' kernel plus arm-soc:
> 
> ERROR: "privcmd_call" [drivers/xen/xen-privcmd.ko] undefined!
> make[2]: *** [__modpost] Error 1
> make[2]: Target `_modpost' not remade because of errors.
> make[1]: *** [modules] Error 2
> make: *** [sub-make] Error 2
> make: Target `uImage' not remade because of errors.
> make: Target `modules' not remade because of errors.
> 
> Full build results and configuration are here:
> 
> http://www.arm.linux.org.uk/developer/build/result.php?type=build&idx=2627
> http://www.arm.linux.org.uk/developer/build/file.php?type=config&idx=2627
> 

I can reproduce the same thing with mainline v3.7-rc4.
8<------
xen/arm: export privcmd_call

privcmd_call may get called from a module, so it has to be exported.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index 59bcb96..ff5e300 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -17,6 +17,9 @@
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
 
+/* from hypercall.S */
+EXPORT_SYMBOL_GPL(privcmd_call);
+
 struct start_info _xen_start_info;
 struct start_info *xen_start_info = &_xen_start_info;
 EXPORT_SYMBOL_GPL(xen_start_info);

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