mm: replace access_remote_vm() write parameter with gup_flags

[linux-2.6-block.git] / lib / Kconfig.ubsan

diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan
index 39494af9a84ac89e6fbbc1f25d9407c70d19e66f..bc6e651df68c31e413552356fd5d67ad32cc11c0 100644 (file)
--- a/lib/Kconfig.ubsan
+++ b/lib/Kconfig.ubsan
@@ -1,6 +1,9 @@
 config ARCH_HAS_UBSAN_SANITIZE_ALL
        bool
 
+config ARCH_WANTS_UBSAN_NO_NULL
+       def_bool n
+
 config UBSAN
        bool "Undefined behaviour sanity checker"
        help
@@ -34,3 +37,11 @@ config UBSAN_ALIGNMENT
          This option enables detection of unaligned memory accesses.
          Enabling this option on architectures that support unaligned
          accesses may produce a lot of false positives.
+
+config UBSAN_NULL
+       bool "Enable checking of null pointers"
+       depends on UBSAN
+       default y if !ARCH_WANTS_UBSAN_NO_NULL
+       help
+         This option enables detection of memory accesses via a
+         null pointer.