diff options
| author | David Cohen <dacohen@pm.me> | 2022-03-24 08:07:30 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-04-13 16:34:01 +0200 |
| commit | ce1cb680ff1c5b88505f878137796b1723e00193 (patch) | |
| tree | fe80445e7148462c42c5e58b4dc11ed9716729da /kernel/power/main.c | |
| parent | ae20cb9aec91ec3c668e413b93a6080803464ae5 (diff) | |
PM: sleep: enable dynamic debug support within pm_pr_dbg()
Currently pm_pr_dbg() is used to filter kernel pm debug messages based
on pm_debug_messages_on flag. The problem is if we enable/disable this
flag it will affect all pm_pr_dbg() calls at once, so we can't
individually control them.
This patch changes pm_pr_dbg() implementation as such:
- If pm_debug_messages_on is enabled, print the message.
- If pm_debug_messages_on is disabled and CONFIG_DYNAMIC_DEBUG is
enabled, only print the messages explicitly enabled on
/sys/kernel/debug/dynamic_debug/control.
- If pm_debug_messages_on is disabled and CONFIG_DYNAMIC_DEBUG is
disabled, don't print the message.
Signed-off-by: David Cohen <dacohen@pm.me>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/power/main.c')
| -rw-r--r-- | kernel/power/main.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c index 7e646079fbeb..5242bf2ee469 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -545,35 +545,6 @@ static int __init pm_debug_messages_setup(char *str) } __setup("pm_debug_messages", pm_debug_messages_setup); -/** - * __pm_pr_dbg - Print a suspend debug message to the kernel log. - * @defer: Whether or not to use printk_deferred() to print the message. - * @fmt: Message format. - * - * The message will be emitted if enabled through the pm_debug_messages - * sysfs attribute. - */ -void __pm_pr_dbg(bool defer, const char *fmt, ...) -{ - struct va_format vaf; - va_list args; - - if (!pm_debug_messages_on) - return; - - va_start(args, fmt); - - vaf.fmt = fmt; - vaf.va = &args; - - if (defer) - printk_deferred(KERN_DEBUG "PM: %pV", &vaf); - else - printk(KERN_DEBUG "PM: %pV", &vaf); - - va_end(args); -} - #else /* !CONFIG_PM_SLEEP_DEBUG */ static inline void pm_print_times_init(void) {} #endif /* CONFIG_PM_SLEEP_DEBUG */ |