18 	if (test_tsk_thread_flag(current, TIF_USEDFPU)) {  in save_fpu_state()
20 		fpsave(&current->thread.float_regs[0], &current->thread.fsr,  in save_fpu_state()
21 		       &current->thread.fpqueue[0], &current->thread.fpqdepth);  in save_fpu_state()
23 		clear_tsk_thread_flag(current, TIF_USEDFPU);  in save_fpu_state()
26 	if (current == last_task_used_math) {  in save_fpu_state()
28 		fpsave(&current->thread.float_regs[0], &current->thread.fsr,  in save_fpu_state()
29 		       &current->thread.fpqueue[0], &current->thread.fpqdepth);  in save_fpu_state()
35 			      &current->thread.float_regs[0],  in save_fpu_state()
37 	err |= __put_user(current->thread.fsr, &fpu->si_fsr);  in save_fpu_state()
38 	err |= __put_user(current->thread.fpqdepth, &fpu->si_fpqdepth);  in save_fpu_state()
39 	if (current->thread.fpqdepth != 0)  in save_fpu_state()
41 				      &current->thread.fpqueue[0],  in save_fpu_state()
56 	if (test_tsk_thread_flag(current, TIF_USEDFPU))  in restore_fpu_state()
59 	if (current == last_task_used_math) {  in restore_fpu_state()
65 	clear_tsk_thread_flag(current, TIF_USEDFPU);  in restore_fpu_state()
70 	err = __copy_from_user(&current->thread.float_regs[0], &fpu->si_float_regs[0],  in restore_fpu_state()
72 	err |= __get_user(current->thread.fsr, &fpu->si_fsr);  in restore_fpu_state()
73 	err |= __get_user(current->thread.fpqdepth, &fpu->si_fpqdepth);  in restore_fpu_state()
74 	if (current->thread.fpqdepth != 0)  in restore_fpu_state()
75 		err |= __copy_from_user(&current->thread.fpqueue[0],  in restore_fpu_state()