xen/x86: Constify the parameter "d" in mfn_to_gfn

The parameter "d" holds the domain and is not modified by the function.
So constify it.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>

diff --git a/xen/include/asm-x86/p2m.h b/xen/include/asm-x86/p2m.h
index 7e71bf075bf52015b7538aa95fea1aa13903aff5..596d744b6d54b253c32c3fa6b44895ad3d8fa632 100644 (file)
--- a/xen/include/asm-x86/p2m.h
+++ b/xen/include/asm-x86/p2m.h
@@ -506,7 +506,7 @@ static inline struct page_info *get_page_from_gfn(
 }
 
 /* General conversion function from mfn to gfn */
-static inline unsigned long mfn_to_gfn(struct domain *d, mfn_t mfn)
+static inline unsigned long mfn_to_gfn(const struct domain *d, mfn_t mfn)
 {
     if ( paging_mode_translate(d) )
         return get_gpfn_from_mfn(mfn_x(mfn));