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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>
This commit is contained in:
Jan Beulich 2021-03-09 18:00:44 +01:00 committed by Boris Ostrovsky
parent b6622798bc
commit 0f9b05b9a0
2 changed files with 0 additions and 4 deletions
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2
arch/arm/xen/p2m.c
View File

@ -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)

2
arch/x86/xen/p2m.c
View File

@ -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>