KABI: reserve space for several i2c structures

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4QWBF
CVE: NA

--------

Reserving some fields in struct i2c_bus_recovery_info, i2c_adapter,
i2c_board_info and i2c_algorithm for future development.
Signed-off-by: NChen Jiahao <chenjiahao16@huawei.com>
Reviewed-by: NLiao Chang <liaochang1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

include/linux/i2c.h

@@ -20,6 +20,7 @@
 #include <linux/of.h>		/* for struct device_node */
 #include <linux/swab.h>		/* for swab16 */
 #include <uapi/linux/i2c.h>
+#include <linux/kabi.h>
 
 extern struct bus_type i2c_bus_type;
 extern struct device_type i2c_adapter_type;
@@ -422,6 +423,8 @@ struct i2c_board_info {
 	const struct resource *resources;
 	unsigned int	num_resources;
 	int		irq;
+
+	KABI_RESERVE(1)
 };
 
 /**
@@ -547,6 +550,9 @@ struct i2c_algorithm {
 	int (*reg_slave)(struct i2c_client *client);
 	int (*unreg_slave)(struct i2c_client *client);
 #endif
+
+	KABI_RESERVE(1)
+	KABI_RESERVE(2)
 };
 
 /**
@@ -636,6 +642,9 @@ struct i2c_bus_recovery_info {
 	struct pinctrl *pinctrl;
 	struct pinctrl_state *pins_default;
 	struct pinctrl_state *pins_gpio;
+
+	KABI_RESERVE(1)
+	KABI_RESERVE(2)
 };
 
 int i2c_recover_bus(struct i2c_adapter *adap);
@@ -726,6 +735,9 @@ struct i2c_adapter {
 	const struct i2c_adapter_quirks *quirks;
 
 	struct irq_domain *host_notify_domain;
+
+	KABI_RESERVE(1)
+	KABI_RESERVE(2)
 };
 #define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)