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authorDavid Cohen <dacohen@pm.me>2022-03-24 08:07:24 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-04-13 16:34:01 +0200
commitae20cb9aec91ec3c668e413b93a6080803464ae5 (patch)
tree35151f1707e452f0eb48cb22a591fc6665037ab5 /kernel/power
parentce522ba9ef7e2d9fb22a39eb3371c0c64e2a433e (diff)
PM: sleep: Narrow down -DDEBUG on kernel/power/ files
The macro -DDEBUG is broadly enabled on kernel/power/ directory if CONFIG_DYNAMIC_DEBUG is enabled. As side effect all debug messages using pr_debug() and dev_dbg() are enabled by default on dynamic debug. We're reworking pm_pr_dbg() to support dynamic debug, where pm_pr_dbg() will print message if either pm_debug_messages_on flag is set or if it's explicitly enabled on dynamic debug's control. That means if we let -DDEBUG broadly set, the pm_debug_messages_on flag will be bypassed by default on pm_pr_dbg() if dynamic debug is also enabled. The files that directly use pr_debug() and dev_dbg() on kernel/power/ are: - swap.c - snapshot.c - energy_model.c And those files do not use pm_pr_dbg(). So if we limit -DDEBUG to them, we keep the same functional behavior while allowing the pm_pr_dbg() refactor. Signed-off-by: David Cohen <dacohen@pm.me> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/power')
-rw-r--r--kernel/power/Makefile6
-rw-r--r--kernel/power/process.c3
2 files changed, 5 insertions, 4 deletions
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index 5899260a8bef..874ad834dc8d 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -1,6 +1,10 @@
# SPDX-License-Identifier: GPL-2.0
-ccflags-$(CONFIG_PM_DEBUG) := -DDEBUG
+ifeq ($(CONFIG_DYNAMIC_DEBUG), y)
+CFLAGS_swap.o := -DDEBUG
+CFLAGS_snapshot.o := -DDEBUG
+CFLAGS_energy_model.o := -DDEBUG
+endif
KASAN_SANITIZE_snapshot.o := n
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 11b570fcf049..3068601e585a 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -6,9 +6,6 @@
* Originally from swsusp.
*/
-
-#undef DEBUG
-
#include <linux/interrupt.h>
#include <linux/oom.h>
#include <linux/suspend.h>