[Xen-devel] Duplicated arch_gnttab_init breaks the arm64 kernel build

[Chen Baozi <baozich@xxxxxxxxx>]

Hi David & Konrad, 

The current upstream kernel fails to build with Xen support because of 
duplicated
arch_gnttab_init() definition:

  CC      arch/arm64/xen/../../arm/xen/grant-table.o
arch/arm64/xen/../../arm/xen/grant-table.c:53:5: error: conflicting types for 
‘arch_gnttab_init’
 int arch_gnttab_init(unsigned long nr_shared, unsigned long nr_status)
     ^
arch/arm64/xen/../../arm/xen/grant-table.c:48:5: note: previous definition of 
‘arch_gnttab_init’ was here
 int arch_gnttab_init(unsigned long nr_shared)
     ^
make[1]: *** [arch/arm64/xen/../../arm/xen/grant-table.o] Error 1
make: *** [arch/arm64/xen] Error 2

I looked through the current upstream kernel tree. It looks like 
arch_gnttab_init()
is still be called in the older fashion (int arch_gnttab_init(unsigned long 
nr_shared)).
So I doubt if the b7dd0e3 at this stage of time?

Cheers,

Baozi

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