[PATCH v4 10/17] dyndbg: make ddebug_tables list LIFO for add/remove_module

From: Jim Cromie
Date: Sat Jun 20 2020 - 14:08:55 EST


loadable modules are the last in on this list, and are the only
modules that could be removed. ddebug_remove_module() searches from
head, but ddebug_add_module() uses list_add_tail(). Change it to
list_add() for a micro-optimization.

Signed-off-by: Jim Cromie <jim.cromie@xxxxxxxxx>
---
lib/dynamic_debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index da3ed54a6521..e879af4e66e0 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -895,7 +895,7 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
dt->ddebugs = tab;

mutex_lock(&ddebug_lock);
- list_add_tail(&dt->link, &ddebug_tables);
+ list_add(&dt->link, &ddebug_tables);
mutex_unlock(&ddebug_lock);

v2pr_info("%u debug prints in module %s\n", n, dt->mod_name);
--
2.26.2