From 97d2423bd9738bb75cd716d01c4c4e1d6fae8441 Mon Sep 17 00:00:00 2001 From: Eduardo Valentin Date: Mon, 7 Nov 2016 21:08:56 -0800 Subject: [PATCH] thermal: core: split available_policies_show() This patch creates a helper to build a list of available governors. Cc: Zhang Rui Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin Signed-off-by: Zhang Rui --- drivers/thermal/thermal_core.c | 35 +++++++++++++++++++--------------- drivers/thermal/thermal_core.h | 1 + 2 files changed, 21 insertions(+), 15 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 23f138f7eb68..3d5118473eb0 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -779,6 +779,25 @@ exit: return ret; } +int thermal_build_list_of_policies(char *buf) +{ + struct thermal_governor *pos; + ssize_t count = 0; + ssize_t size = PAGE_SIZE; + + mutex_lock(&thermal_governor_lock); + + list_for_each_entry(pos, &thermal_governor_list, governor_list) { + size = PAGE_SIZE - count; + count += scnprintf(buf + count, size, "%s ", pos->name); + } + count += scnprintf(buf + count, size, "\n"); + + mutex_unlock(&thermal_governor_lock); + + return count; +} + /* sys I/F for thermal zone */ #define to_thermal_zone(_dev) \ @@ -1048,21 +1067,7 @@ static ssize_t available_policies_show(struct device *dev, struct device_attribute *devattr, char *buf) { - struct thermal_governor *pos; - ssize_t count = 0; - ssize_t size = PAGE_SIZE; - - mutex_lock(&thermal_governor_lock); - - list_for_each_entry(pos, &thermal_governor_list, governor_list) { - size = PAGE_SIZE - count; - count += scnprintf(buf + count, size, "%s ", pos->name); - } - count += scnprintf(buf + count, size, "\n"); - - mutex_unlock(&thermal_governor_lock); - - return count; + return thermal_build_list_of_policies(buf); } static ssize_t diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index db65d3b08cf7..8994d2a379c3 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -61,6 +61,7 @@ void thermal_zone_device_rebind_exception(struct thermal_zone_device *, void thermal_zone_device_unbind_exception(struct thermal_zone_device *, const char *, size_t); int thermal_zone_device_set_policy(struct thermal_zone_device *, char *); +int thermal_build_list_of_policies(char *buf); #ifdef CONFIG_THERMAL_GOV_STEP_WISE int thermal_gov_step_wise_register(void); -- 2.20.1