From 89873a711dd20b614abb6e4038fb4b5462f4c701 Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Fri, 7 Oct 2016 15:39:57 +0300 Subject: watchdog: pretimeout: add pretimeout_available_governors attribute The change adds an option to a user with CONFIG_WATCHDOG_SYSFS and CONFIG_WATCHDOG_PRETIMEOUT_GOV enabled to get information about all registered watchdog pretimeout governors by reading watchdog device attribute named "pretimeout_available_governors". Signed-off-by: Vladimir Zapolskiy Reviewed-by: Guenter Roeck Reviewed-by: Wolfram Sang Tested-by: Wolfram Sang Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/watchdog_pretimeout.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/watchdog/watchdog_pretimeout.c') diff --git a/drivers/watchdog/watchdog_pretimeout.c b/drivers/watchdog/watchdog_pretimeout.c index c9e4a0326938..9db07bfb4334 100644 --- a/drivers/watchdog/watchdog_pretimeout.c +++ b/drivers/watchdog/watchdog_pretimeout.c @@ -52,6 +52,21 @@ static struct governor_priv *find_governor_by_name(const char *gov_name) return NULL; } +int watchdog_pretimeout_available_governors_get(char *buf) +{ + struct governor_priv *priv; + int count = 0; + + mutex_lock(&governor_lock); + + list_for_each_entry(priv, &governor_list, entry) + count += sprintf(buf + count, "%s\n", priv->gov->name); + + mutex_unlock(&governor_lock); + + return count; +} + int watchdog_pretimeout_governor_get(struct watchdog_device *wdd, char *buf) { int count = 0; -- cgit v1.2.3