s390/fpu: remove regs member from struct fpu

KVM was the only user which modified the regs pointer in struct fpu. Remove
the pointer and convert the rest of the core fpu code to directly access
the save area embedded within struct fpu.

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

1 files changed, 4 insertions, 7 deletions

diff --git a/arch/s390/kernel/fpu.c b/arch/s390/kernel/fpu.c
index b976da5bf71b..a0ef3fc5d90f 100644
--- a/arch/s390/kernel/fpu.c
+++ b/arch/s390/kernel/fpu.c
@@ -110,13 +110,12 @@ EXPORT_SYMBOL(__kernel_fpu_end);
 void __load_user_fpu_regs(void)
 {
 	struct fpu *state = &current->thread.ufpu;
-	void *regs = current->thread.ufpu.regs;
 
 	fpu_lfpc_safe(&state->fpc);
 	if (likely(cpu_has_vx()))
-		load_vx_regs(regs);
+		load_vx_regs(state->vxrs);
 	else
-		load_fp_regs(regs);
+		load_fp_regs(state->fprs);
 	clear_thread_flag(TIF_FPU);
 }
 
@@ -132,7 +131,6 @@ void save_user_fpu_regs(void)
 {
 	unsigned long flags;
 	struct fpu *state;
-	void *regs;
 
 	local_irq_save(flags);
 
@@ -140,13 +138,12 @@ void save_user_fpu_regs(void)
 		goto out;
 
 	state = &current->thread.ufpu;
-	regs = current->thread.ufpu.regs;
 
 	fpu_stfpc(&state->fpc);
 	if (likely(cpu_has_vx()))
-		save_vx_regs(regs);
+		save_vx_regs(state->vxrs);
 	else
-		save_fp_regs(regs);
+		save_fp_regs(state->fprs);
 	set_thread_flag(TIF_FPU);
 out:
 	local_irq_restore(flags);