diff options
Diffstat (limited to 'common/restart.c')
-rw-r--r-- | common/restart.c | 37 |
1 files changed, 33 insertions, 4 deletions
diff --git a/common/restart.c b/common/restart.c index b19ae54657..2bf7b166b0 100644 --- a/common/restart.c +++ b/common/restart.c @@ -19,6 +19,7 @@ #include <of.h> static LIST_HEAD(restart_handler_list); +static unsigned resetidx; /** * restart_handler_register() - register a handler for restarting the system @@ -31,7 +32,7 @@ static LIST_HEAD(restart_handler_list); int restart_handler_register(struct restart_handler *rst) { if (!rst->name) - rst->name = RESTART_DEFAULT_NAME; + rst->name = basprintf("reset%u", resetidx); if (!rst->priority) rst->priority = RESTART_DEFAULT_PRIORITY; @@ -40,11 +41,13 @@ int restart_handler_register(struct restart_handler *rst) pr_debug("registering restart handler \"%s\" with priority %d\n", rst->name, rst->priority); + resetidx++; return 0; } /** * restart_handler_register_fn() - register a handler function + * @name: restart method name or NULL if name should be auto-generated * @restart_fn: The restart function * * convenience wrapper for restart_handler_register() to register a handler @@ -52,13 +55,15 @@ int restart_handler_register(struct restart_handler *rst) * * return: 0 for success or negative error code */ -int restart_handler_register_fn(void (*restart_fn)(struct restart_handler *)) +int restart_handler_register_fn(const char *name, + void (*restart_fn)(struct restart_handler *)) { struct restart_handler *rst; int ret; rst = xzalloc(sizeof(*rst)); + rst->name = xstrdup(name); rst->restart = restart_fn; ret = restart_handler_register(rst); @@ -70,20 +75,33 @@ int restart_handler_register_fn(void (*restart_fn)(struct restart_handler *)) } /** - * restart_machine() - reset the whole system + * restart_handler_get_by_name() - reset the whole system */ -void __noreturn restart_machine(void) +struct restart_handler *restart_handler_get_by_name(const char *name) { struct restart_handler *rst = NULL, *tmp; unsigned int priority = 0; list_for_each_entry(tmp, &restart_handler_list, list) { + if (name && tmp->name && strcmp(name, tmp->name)) + continue; if (tmp->priority > priority) { priority = tmp->priority; rst = tmp; } } + return rst; +} + +/** + * restart_machine() - reset the whole system + */ +void __noreturn restart_machine(void) +{ + struct restart_handler *rst; + + rst = restart_handler_get_by_name(NULL); if (rst) { pr_debug("%s: using restart handler %s\n", __func__, rst->name); console_flush(); @@ -107,3 +125,14 @@ unsigned int of_get_restart_priority(struct device_node *node) return priority; } + +/* + * restart_handlers_print - print informations about all restart handlers + */ +void restart_handlers_print(void) +{ + struct restart_handler *tmp; + + list_for_each_entry(tmp, &restart_handler_list, list) + printf("%-20s %6d\n", tmp->name, tmp->priority); +} |