1 files changed, 54 insertions, 15 deletions

diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index f8c6df6cd1f..d350ed9d0fb 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -8,7 +8,11 @@
 #include <linux/thread_info.h>
 
 #define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64))
-#define __SC_DELOUSE(t,v) (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v))
+
+#define __SC_DELOUSE(t,v) ({ \
+	BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \
+	(t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \
+})
 
 #define PSW32_MASK_PER		0x40000000UL
 #define PSW32_MASK_DAT		0x04000000UL
@@ -22,6 +26,7 @@
 #define PSW32_MASK_ASC		0x0000C000UL
 #define PSW32_MASK_CC		0x00003000UL
 #define PSW32_MASK_PM		0x00000f00UL
+#define PSW32_MASK_RI		0x00000080UL
 
 #define PSW32_MASK_USER		0x0000FF00UL
 
@@ -35,7 +40,10 @@
 #define PSW32_ASC_SECONDARY	0x00008000UL
 #define PSW32_ASC_HOME		0x0000C000UL
 
-extern u32 psw32_user_bits;
+#define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
+			 PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
+			 PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \
+			 PSW32_ASC_PRIMARY)
 
 #define COMPAT_USER_HZ		100
 #define COMPAT_UTS_MACHINE	"s390\0\0\0\0"
@@ -70,6 +78,22 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
+typedef struct {
+	u32 mask;
+	u32 addr;
+} __aligned(8) psw_compat_t;
+
+typedef struct {
+	psw_compat_t psw;
+	u32 gprs[NUM_GPRS];
+	u32 acrs[NUM_ACRS];
+	u32 orig_gpr2;
+} s390_compat_regs;
+
+typedef struct {
+	u32 gprs_high[NUM_GPRS];
+} s390_compat_regs_high;
+
 struct compat_timespec {
 	compat_time_t	tv_sec;
 	s32		tv_nsec;
@@ -124,18 +148,33 @@ struct compat_flock64 {
 };
 
 struct compat_statfs {
-	s32		f_type;
-	s32		f_bsize;
-	s32		f_blocks;
-	s32		f_bfree;
-	s32		f_bavail;
-	s32		f_files;
-	s32		f_ffree;
+	u32		f_type;
+	u32		f_bsize;
+	u32		f_blocks;
+	u32		f_bfree;
+	u32		f_bavail;
+	u32		f_files;
+	u32		f_ffree;
 	compat_fsid_t	f_fsid;
-	s32		f_namelen;
-	s32		f_frsize;
-	s32		f_flags;
-	s32		f_spare[5];
+	u32		f_namelen;
+	u32		f_frsize;
+	u32		f_flags;
+	u32		f_spare[4];
+};
+
+struct compat_statfs64 {
+	u32		f_type;
+	u32		f_bsize;
+	u64		f_blocks;
+	u64		f_bfree;
+	u64		f_bavail;
+	u64		f_files;
+	u64		f_ffree;
+	compat_fsid_t	f_fsid;
+	u32		f_namelen;
+	u32		f_frsize;
+	u32		f_flags;
+	u32		f_spare[4];
 };
 
 #define COMPAT_RLIM_OLD_INFINITY	0x7fffffff
@@ -248,8 +287,6 @@ static inline int is_compat_task(void)
 	return is_32bit_task();
 }
 
-#endif
-
 static inline void __user *arch_compat_alloc_user_space(long len)
 {
 	unsigned long stack;
@@ -260,6 +297,8 @@ static inline void __user *arch_compat_alloc_user_space(long len)
 	return (void __user *) (stack - len);
 }
 
+#endif
+
 struct compat_ipc64_perm {
 	compat_key_t key;
 	__compat_uid32_t uid;