127 static void *validate_and_copy_from_user(const void __user *user_buf,  in validate_and_copy_from_user()  argument
136 	if (!access_ok(user_buf, *count))  in validate_and_copy_from_user()
144 	if (copy_from_user(buf, user_buf, nbytes)) {  in validate_and_copy_from_user()
222 			  enum tb_cfg_space space, const char __user *user_buf,  in regs_write()  argument
230 	buf = validate_and_copy_from_user(user_buf, &count);  in regs_write()
273 static ssize_t port_regs_write(struct file *file, const char __user *user_buf,  in port_regs_write()  argument
279 	return regs_write(port->sw, port, TB_CFG_PORT, user_buf, count, ppos);  in port_regs_write()
282 static ssize_t path_write(struct file *file, const char __user *user_buf,  in path_write()  argument
288 	return regs_write(port->sw, port, TB_CFG_HOPS, user_buf, count, ppos);  in path_write()
291 static ssize_t switch_regs_write(struct file *file, const char __user *user_buf,  in switch_regs_write()  argument
297 	return regs_write(sw, NULL, TB_CFG_SWITCH, user_buf, count, ppos);  in switch_regs_write()
381 static ssize_t port_sb_regs_write(struct file *file, const char __user *user_buf,  in port_sb_regs_write()  argument
391 	buf = validate_and_copy_from_user(user_buf, &count);  in port_sb_regs_write()
415 				     const char __user *user_buf,  in retimer_sb_regs_write()  argument
424 	buf = validate_and_copy_from_user(user_buf, &count);  in retimer_sb_regs_write()
616 margining_ber_level_write(struct file *file, const char __user *user_buf,  in margining_ber_level_write()  argument
634 	buf = validate_and_copy_from_user(user_buf, &count);  in margining_ber_level_write()
809 margining_lanes_write(struct file *file, const char __user *user_buf,  in margining_lanes_write()  argument
819 	buf = validate_and_copy_from_user(user_buf, &count);  in margining_lanes_write()
885 				    const char __user *user_buf,  in margining_voltage_time_offset_write()  argument
895 	ret = kstrtouint_from_user(user_buf, count, 10, &val);  in margining_voltage_time_offset_write()
935 margining_error_counter_write(struct file *file, const char __user *user_buf,  in margining_error_counter_write()  argument
944 	buf = validate_and_copy_from_user(user_buf, &count);  in margining_error_counter_write()
1001 margining_dwell_time_write(struct file *file, const char __user *user_buf,  in margining_dwell_time_write()  argument
1010 	ret = kstrtouint_from_user(user_buf, count, 10, &val);  in margining_dwell_time_write()
1041 margining_optional_voltage_offset_write(struct file *file, const char __user *user_buf,  in margining_optional_voltage_offset_write()  argument
1050 	ret = kstrtobool_from_user(user_buf, count, &val);  in margining_optional_voltage_offset_write()
1076 				   const char __user *user_buf,  in margining_mode_write()  argument
1085 	buf = validate_and_copy_from_user(user_buf, &count);  in margining_mode_write()
1317 				       const char __user *user_buf,  in margining_results_write()  argument
1470 				    const char __user *user_buf,  in margining_test_write()  argument
1479 	buf = validate_and_copy_from_user(user_buf, &count);  in margining_test_write()
1527 				    const char __user *user_buf,  in margining_margin_write()  argument
1536 	buf = validate_and_copy_from_user(user_buf, &count);  in margining_margin_write()
1596 				   const char __user *user_buf,  in margining_eye_write()  argument
1606 	buf = validate_and_copy_from_user(user_buf, &count);  in margining_eye_write()
1887 static ssize_t counters_write(struct file *file, const char __user *user_buf,  in counters_write()  argument
1897 	buf = validate_and_copy_from_user(user_buf, &count);  in counters_write()