208 	struct papr_sysparm_buf *kern_spbuf;  in papr_sysparm_buf_from_user()  local
220 	static_assert(sizeof(kern_spbuf->val) >= PAPR_SYSPARM_MAX_INPUT);  in papr_sysparm_buf_from_user()
225 	kern_spbuf = papr_sysparm_buf_alloc();  in papr_sysparm_buf_from_user()
226 	if (!kern_spbuf)  in papr_sysparm_buf_from_user()
229 	papr_sysparm_buf_set_length(kern_spbuf, len);  in papr_sysparm_buf_from_user()
231 	if (len > 0 && copy_from_user(kern_spbuf->val, user_iob->data, len)) {  in papr_sysparm_buf_from_user()
236 	return kern_spbuf;  in papr_sysparm_buf_from_user()
239 	papr_sysparm_buf_free(kern_spbuf);  in papr_sysparm_buf_from_user()
243 static int papr_sysparm_buf_to_user(const struct papr_sysparm_buf *kern_spbuf,  in papr_sysparm_buf_to_user()  argument
246 	u16 len_out = papr_sysparm_buf_get_length(kern_spbuf);  in papr_sysparm_buf_to_user()
252 	static_assert(sizeof(kern_spbuf->val) >= PAPR_SYSPARM_MAX_OUTPUT);  in papr_sysparm_buf_to_user()
254 	if (copy_to_user(user_iob->data, kern_spbuf->val, PAPR_SYSPARM_MAX_OUTPUT))  in papr_sysparm_buf_to_user()
262 	struct papr_sysparm_buf *kern_spbuf;  in papr_sysparm_ioctl_get()  local
269 	kern_spbuf = papr_sysparm_buf_from_user(user_iob);  in papr_sysparm_ioctl_get()
270 	if (IS_ERR(kern_spbuf))  in papr_sysparm_ioctl_get()
271 		return PTR_ERR(kern_spbuf);  in papr_sysparm_ioctl_get()
273 	ret = papr_sysparm_get(param, kern_spbuf);  in papr_sysparm_ioctl_get()
277 	ret = papr_sysparm_buf_to_user(kern_spbuf, user_iob);  in papr_sysparm_ioctl_get()
284 	papr_sysparm_buf_free(kern_spbuf);  in papr_sysparm_ioctl_get()
291 	struct papr_sysparm_buf *kern_spbuf;  in papr_sysparm_ioctl_set()  local
298 	kern_spbuf = papr_sysparm_buf_from_user(user_iob);  in papr_sysparm_ioctl_set()
299 	if (IS_ERR(kern_spbuf))  in papr_sysparm_ioctl_set()
300 		return PTR_ERR(kern_spbuf);  in papr_sysparm_ioctl_set()
302 	ret = papr_sysparm_set(param, kern_spbuf);  in papr_sysparm_ioctl_set()
309 	papr_sysparm_buf_free(kern_spbuf);  in papr_sysparm_ioctl_set()