xtensa: nommu: provide MAP_UNINITIALIZED definition

Add MAP_UNINITIALIZED to xtensa version of mman.h to keep mm/nommu.c
happy.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 00eed6786d7e..201aec0e0446 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -55,6 +55,12 @@
 #define MAP_NONBLOCK    0x20000         /* do not block on IO */
 #define MAP_STACK       0x40000         /* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB     0x80000         /* create a huge page mapping */
+#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
+# define MAP_UNINITIALIZED 0x4000000    /* For anonymous mmap, memory could be
+                                         * uninitialized */
+#else
+# define MAP_UNINITIALIZED 0x0          /* Don't support this flag */
+#endif
 
 /*
  * Flags for msync