Xen: drop exports of {set,clear}_foreign_p2m_mapping()

They're only used internally, and the layering violation they contain
(x86) or imply (Arm) of calling HYPERVISOR_grant_table_op() strongly
advise against any (uncontrolled) use from a module. The functions also
never had users except the ones from drivers/xen/grant-table.c forever
since their introduction in 3.15.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/746a5cd6-1446-eda4-8b23-03c1cac30b8d@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c
index acb4645..5316cf3 100644 (file)
--- a/arch/arm/xen/p2m.c
+++ b/arch/arm/xen/p2m.c
@@ -130,7 +130,6 @@ int set_foreign_p2m_mapping(struct gnttab_map_grant_ref *map_ops,
 
        return 0;
 }
-EXPORT_SYMBOL_GPL(set_foreign_p2m_mapping);
 
 int clear_foreign_p2m_mapping(struct gnttab_unmap_grant_ref *unmap_ops,
                              struct gnttab_unmap_grant_ref *kunmap_ops,
@@ -145,7 +144,6 @@ int clear_foreign_p2m_mapping(struct gnttab_unmap_grant_ref *unmap_ops,
 
        return 0;
 }
-EXPORT_SYMBOL_GPL(clear_foreign_p2m_mapping);
 
 bool __set_phys_to_machine_multi(unsigned long pfn,
                unsigned long mfn, unsigned long nr_pages)

diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index a3cc330..e912992 100644 (file)
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -776,7 +776,6 @@ int set_foreign_p2m_mapping(struct gnttab_map_grant_ref *map_ops,
 out:
        return ret;
 }
-EXPORT_SYMBOL_GPL(set_foreign_p2m_mapping);
 
 int clear_foreign_p2m_mapping(struct gnttab_unmap_grant_ref *unmap_ops,
                              struct gnttab_unmap_grant_ref *kunmap_ops,
@@ -802,7 +801,6 @@ int clear_foreign_p2m_mapping(struct gnttab_unmap_grant_ref *unmap_ops,
 
        return ret;
 }
-EXPORT_SYMBOL_GPL(clear_foreign_p2m_mapping);
 
 #ifdef CONFIG_XEN_DEBUG_FS
 #include <linux/debugfs.h>