[RFC PATCH v6 13/34] dyndbg: refactor ddebug_alter_site out of ddebug_change

Jim Cromie
2021-05-29T20:02:49Z

Move the JUMP_LABEL/static-key code to a separate function.

no functional changes.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
lib/dynamic_debug.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 592aaaf79fd7..ad7cda840733 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -192,6 +192,18 @@ static int ddebug_match_site(const struct ddebug_query *query,
return true;
}

+static void ddebug_alter_site(struct _ddebug *dp,
+ struct flag_settings *modifiers)
+{
+#ifdef CONFIG_JUMP_LABEL
+ if (dp->flags & _DPRINTK_FLAGS_PRINT) {
+ if (!(modifiers->flags & _DPRINTK_FLAGS_PRINT))
+ static_branch_disable(&dp->key.dd_key_true);
+ } else if (modifiers->flags & _DPRINTK_FLAGS_PRINT)
+ static_branch_enable(&dp->key.dd_key_true);
+#endif
+}
+
/*
* Search the tables for _ddebug's which match the given `query' and
* apply the `flags' and `mask' to them. Returns number of matching
@@ -228,13 +240,9 @@ static int ddebug_change(const struct ddebug_query *query,
newflags = (dp->flags & modifiers->mask) | modifiers->flags;
if (newflags == dp->flags)
continue;
-#ifdef CONFIG_JUMP_LABEL
- if (dp->flags & _DPRINTK_FLAGS_PRINT) {
- if (!(modifiers->flags & _DPRINTK_FLAGS_PRINT))
- static_branch_disable(&dp->key.dd_key_true);
- } else if (modifiers->flags & _DPRINTK_FLAGS_PRINT)
- static_branch_enable(&dp->key.dd_key_true);
-#endif
+
+ ddebug_alter_site(dp, modifiers);
+
dp->flags = newflags;

if (dc)
--
2.31.1