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Commit c8999a88 authored by Josh Boyer's avatar Josh Boyer Committed by Stefano Stabellini
Browse files

arm/xen: Export phys_to_mach to fix Xen module link errors 



Various xen drivers fail to link when built as modules with the following
error:

ERROR: "phys_to_mach" [drivers/xen/xen-gntalloc.ko] undefined!
ERROR: "phys_to_mach" [drivers/net/xen-netfront.ko] undefined!
ERROR: "phys_to_mach" [drivers/net/xen-netback/xen-netback.ko] undefined!
ERROR: "phys_to_mach" [drivers/block/xen-blkfront.ko] undefined!

The mfn_to_pfn and pfn_to_mfn functions get inlined in these modules and
those functions require phys_to_mach.  Export the symbol to fix the link
errors.

Signed-off-by: default avatarJosh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
parent 71bfae90

arch/arm/xen/p2m.c

+1 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ struct xen_p2m_entry { 


rwlock_t p2m_lock;

struct rb_root phys_to_mach = RB_ROOT;

EXPORT_SYMBOL_GPL(phys_to_mach);

static struct rb_root mach_to_phys = RB_ROOT;



static int xen_add_phys_to_mach_entry(struct xen_p2m_entry *new)