Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index b1ce500..333a669 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -3,9 +3,8 @@
#error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
#endif
-/* Some compiler specific definitions are overwritten here
- * for Clang compiler
- */
+/* Compiler specific definitions for Clang compiler */
+
#define uninitialized_var(x) x = *(&(x))
/* same as gcc, this was present in clang-2.6 so we can assume it works
@@ -16,13 +15,15 @@
/* all clang versions usable with the kernel support KASAN ABI version 5 */
#define KASAN_ABI_VERSION 5
+#if __has_feature(address_sanitizer) || __has_feature(hwaddress_sanitizer)
/* emulate gcc's __SANITIZE_ADDRESS__ flag */
-#if __has_feature(address_sanitizer)
#define __SANITIZE_ADDRESS__
+#define __no_sanitize_address \
+ __attribute__((no_sanitize("address", "hwaddress")))
+#else
+#define __no_sanitize_address
#endif
-#define __no_sanitize_address __attribute__((no_sanitize("address")))
-
/*
* Not all versions of clang implement the the type-generic versions
* of the builtin overflow checkers. Fortunately, clang implements
@@ -41,6 +42,3 @@
* compilers, like ICC.
*/
#define barrier() __asm__ __volatile__("" : : : "memory")
-#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
-#define __assume_aligned(a, ...) \
- __attribute__((__assume_aligned__(a, ## __VA_ARGS__)))