kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/include/linux/watchdog.h
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@@ -37,15 +37,15 @@
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  *
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  * The watchdog_ops structure contains a list of low-level operations
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  * that control a watchdog device. It also contains the module that owns
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- * these operations. The start and stop function are mandatory, all other
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+ * these operations. The start function is mandatory, all other
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  * functions are optional.
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  */
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 struct watchdog_ops {
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 	struct module *owner;
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 	/* mandatory operations */
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 	int (*start)(struct watchdog_device *);
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-	int (*stop)(struct watchdog_device *);
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 	/* optional operations */
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+	int (*stop)(struct watchdog_device *);
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 	int (*ping)(struct watchdog_device *);
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 	unsigned int (*status)(struct watchdog_device *);
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 	int (*set_timeout)(struct watchdog_device *, unsigned int);
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@@ -90,9 +90,6 @@
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  *
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  * The driver-data field may not be accessed directly. It must be accessed
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  * via the watchdog_set_drvdata and watchdog_get_drvdata helpers.
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- *
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- * The lock field is for watchdog core internal use only and should not be
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- * touched.
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  */
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 struct watchdog_device {
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 	int id;
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@@ -213,6 +210,8 @@
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 extern int watchdog_register_device(struct watchdog_device *);
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 extern void watchdog_unregister_device(struct watchdog_device *);
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+int watchdog_set_last_hw_keepalive(struct watchdog_device *, unsigned int);
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+
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 /* devres register variant */
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 int devm_watchdog_register_device(struct device *dev, struct watchdog_device *);
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