arm: kill fpu_state_t

It has been a mistake to introduce this struct since the FPU state
is stored deep inside an ARM sigframe. A remnant of the struct
is left to make the code compatible with the universal declaration
of the routine sigreturn_prep_fpu_frame().
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

arch/arm/include/asm/restorer.h

@@ -42,6 +42,8 @@ struct vfp_sigframe {
 	struct user_vfp_exc     ufp_exc;
 };
 
+typedef struct vfp_sigframe fpu_state_t;
+
 struct aux_sigframe {
 	/*
 	struct crunch_sigframe  crunch;
@@ -62,8 +64,6 @@ struct sigframe {
 struct rt_sigframe {
 	struct rt_siginfo info;
 	struct sigframe sig;
-
-	fpu_state_t fpu_state;
 };
 
 

arch/arm/include/asm/types.h

@@ -228,11 +228,4 @@ typedef uint32_t auxv_t;
 static inline void *decode_pointer(uint64_t v) { return (void*)(uint32_t)v; }
 static inline uint64_t encode_pointer(void *p) { return (uint32_t)p; }
 
-typedef struct {
-	struct user_vfp		ufp;
-	struct user_vfp_exc	ufp_exc;
-
-	bool has_fpu;
-} fpu_state_t;
-
 #endif /* __CR_ASM_TYPES_H__ */