Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 97db2fb..63b46e3 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -9,6 +9,8 @@
 #include <linux/sched/task_stack.h>
 #include <linux/thread_info.h>
 
+#include <asm-generic/compat.h>
+
 #define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \
 				typeof(0?(__force t)0:0ULL), u64))
 
@@ -51,34 +53,18 @@
 #define COMPAT_USER_HZ		100
 #define COMPAT_UTS_MACHINE	"s390\0\0\0\0"
 
-typedef u32		compat_size_t;
-typedef s32		compat_ssize_t;
-typedef s32		compat_clock_t;
-typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
 typedef u16		__compat_gid_t;
 typedef u32		__compat_uid32_t;
 typedef u32		__compat_gid32_t;
 typedef u16		compat_mode_t;
-typedef u32		compat_ino_t;
 typedef u16		compat_dev_t;
-typedef s32		compat_off_t;
-typedef s64		compat_loff_t;
 typedef u16		compat_nlink_t;
 typedef u16		compat_ipc_pid_t;
-typedef s32		compat_daddr_t;
 typedef u32		compat_caddr_t;
 typedef __kernel_fsid_t	compat_fsid_t;
-typedef s32		compat_key_t;
-typedef s32		compat_timer_t;
-
-typedef s32		compat_int_t;
-typedef s32		compat_long_t;
 typedef s64		compat_s64;
-typedef u32		compat_uint_t;
-typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
-typedef u32		compat_uptr_t;
 
 typedef struct {
 	u32 mask;