xen/gnttab: Use phys_addr_t to describe the grant frame base address

On ARM, address size can be 32 bits or 64 bits (if CONFIG_ARCH_PHYS_ADDR_T_64BIT
is enabled).
We can't assume that the grant frame base address will always fits in an
unsigned long. Use phys_addr_t instead of unsigned long as argument for
gnttab_setup_auto_xlat_frames.

Signed-off-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 1ce1c40331f3..b84e3ab839aa 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -837,7 +837,7 @@ unsigned int gnttab_max_grant_frames(void)
 }
 EXPORT_SYMBOL_GPL(gnttab_max_grant_frames);
 
-int gnttab_setup_auto_xlat_frames(unsigned long addr)
+int gnttab_setup_auto_xlat_frames(phys_addr_t addr)
 {
         xen_pfn_t *pfn;
         unsigned int max_nr_gframes = __max_nr_grant_frames();
@@ -849,8 +849,8 @@ int gnttab_setup_auto_xlat_frames(unsigned long addr)
 
         vaddr = xen_remap(addr, PAGE_SIZE * max_nr_gframes);
         if (vaddr == NULL) {
-                pr_warn("Failed to ioremap gnttab share frames (addr=0x%08lx)!\n",
-                        addr);
+                pr_warn("Failed to ioremap gnttab share frames (addr=%pa)!\n",
+                        &addr);
                 return -ENOMEM;
         }
         pfn = kcalloc(max_nr_gframes, sizeof(pfn[0]), GFP_KERNEL);