*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
-#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
+#define pfn_to_kaddr(pfn) __va((phys_addr_t)(pfn) << PAGE_SHIFT)
extern phys_addr_t (*arch_virt_to_idmap)(unsigned long x);
*/
static inline phys_addr_t __virt_to_idmap(unsigned long x)
{
- if (arch_virt_to_idmap)
+ if (IS_ENABLED(CONFIG_MMU) && arch_virt_to_idmap)
return arch_virt_to_idmap(x);
else
return __virt_to_phys(x);