[ARM] 4112/1: Only ioremap to supersections if DOMAIN_IO is zero

Supersections do not have a field for the domain and it is always
0. This patch prevents the creation of supersections during ioremap
when DOMAIN_IO is not zero (i.e. !defined(CONFIG_IO_36)).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 251685fe73a8..0ac615c0f798 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -300,7 +300,8 @@ __ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size,
         addr = (unsigned long)area->addr;
 
 #ifndef CONFIG_SMP
-        if ((((cpu_architecture() >= CPU_ARCH_ARMv6) && (get_cr() & CR_XP)) ||
+        if (DOMAIN_IO == 0 &&
+            (((cpu_architecture() >= CPU_ARCH_ARMv6) && (get_cr() & CR_XP)) ||
                cpu_is_xsc3()) &&
                !((__pfn_to_phys(pfn) | size | addr) & ~SUPERSECTION_MASK)) {
                 area->flags |= VM_ARM_SECTION_MAPPING;