ARM: fix __virt_to_idmap build error on !MMU

[cascardo/linux.git] / arch / arm / include / asm / memory.h

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 6f225ac..b7f6fb4 100644 (file)
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -286,7 +286,7 @@ 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);