linux-kernel - [PATCH v5 04/33] dyndbg: reverse module walk in cat control

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Date:   Fri,  5 Aug 2022 15:53:26 -0600
From:   Jim Cromie <jim.cromie@...il.com>
To:     linux-kernel@...r.kernel.org, jbaron@...mai.com,
        gregkh@...uxfoundation.org, dri-devel@...ts.freedesktop.org,
        amd-gfx@...ts.freedesktop.org, intel-gvt-dev@...ts.freedesktop.org,
        intel-gfx@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org
Cc:     daniel.vetter@...ll.ch, seanpaul@...omium.org, robdclark@...il.com,
        Jim Cromie <jim.cromie@...il.com>
Subject: [PATCH v5 04/33] dyndbg: reverse module walk in cat control

/proc/dynamic_debug/control walks the prdbg catalog in "reverse",
fix this by adding new ddebug_tables to tail of list.

This puts init/main.c entries 1st, which looks more than coincidental.

no functional changes.

Signed-off-by: Jim Cromie <jim.cromie@...il.com>
Acked-by: Jason Baron <jbaron@...mai.com>
---
 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 8faf584f2f4b..7fb99492c16f 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -970,7 +970,7 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
 	dt->ddebugs = tab;
 
 	mutex_lock(&ddebug_lock);
-	list_add(&dt->link, &ddebug_tables);
+	list_add_tail(&dt->link, &ddebug_tables);
 	mutex_unlock(&ddebug_lock);
 
 	vpr_info("%3u debug prints in module %s\n", n, dt->mod_name);
-- 
2.37.1