earlysuspend: add verbose debug flag
when enabled, prints out the function of each handler as they are called
Change-Id: I5ed251867e0e3aa3cd05f030ff3579808cedd0c2
Signed-off-by: Erik Gilling <konkers@android.com>
diff --git a/kernel/power/earlysuspend.c b/kernel/power/earlysuspend.c
index 84bed51..b15f02e 100644
--- a/kernel/power/earlysuspend.c
+++ b/kernel/power/earlysuspend.c
@@ -26,6 +26,7 @@
enum {
DEBUG_USER_STATE = 1U << 0,
DEBUG_SUSPEND = 1U << 2,
+ DEBUG_VERBOSE = 1U << 3,
};
static int debug_mask = DEBUG_USER_STATE;
module_param_named(debug_mask, debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP);
@@ -94,8 +95,11 @@
if (debug_mask & DEBUG_SUSPEND)
pr_info("early_suspend: call handlers\n");
list_for_each_entry(pos, &early_suspend_handlers, link) {
- if (pos->suspend != NULL)
+ if (pos->suspend != NULL) {
+ if (debug_mask & DEBUG_VERBOSE)
+ pr_info("early_suspend: calling %pf\n", pos->suspend);
pos->suspend(pos);
+ }
}
mutex_unlock(&early_suspend_lock);
@@ -131,9 +135,14 @@
}
if (debug_mask & DEBUG_SUSPEND)
pr_info("late_resume: call handlers\n");
- list_for_each_entry_reverse(pos, &early_suspend_handlers, link)
- if (pos->resume != NULL)
+ list_for_each_entry_reverse(pos, &early_suspend_handlers, link) {
+ if (pos->resume != NULL) {
+ if (debug_mask & DEBUG_VERBOSE)
+ pr_info("late_resume: calling %pf\n", pos->resume);
+
pos->resume(pos);
+ }
+ }
if (debug_mask & DEBUG_SUSPEND)
pr_info("late_resume: done\n");
abort: