linux-kernel - [PATCH v2 19/20] dyndbg: unwrap __ddebug_add

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Message-Id: <20230113193016.749791-20-jim.cromie@gmail.com>
Date:   Fri, 13 Jan 2023 12:30:15 -0700
From:   Jim Cromie <jim.cromie@...il.com>
To:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        amd-gfx@...ts.freedesktop.org, intel-gvt-dev@...ts.freedesktop.org,
        intel-gfx@...ts.freedesktop.org
Cc:     jani.nikula@...el.com, ville.syrjala@...ux.intel.com,
        daniel.vetter@...ll.ch, seanpaul@...omium.org, robdclark@...il.com,
        jbaron@...mai.com, gregkh@...uxfoundation.org,
        Jim Cromie <jim.cromie@...il.com>
Subject: [PATCH v2 19/20] dyndbg: unwrap __ddebug_add_module inner function NOTYET

The inner func has a base arg which is unused in the body, so theres
no point in having the inner fn.

Its one-time purpose was to expose a wider interface to the internal
caller: dynamic_debug_init(), to allow communicating each module's
offset in the builtin _ddebug[] table.

That purpose was obsoleted by cited commit, when ddebug_add_module()
was converted to pass a *ddebug_info, which is used as a cursor by the
caller.

TODO: the cited commit gives another reason for base, to provide an
index in support of de-duplicating column data.  Refresh that patchset
to see if its still true.

Fixes: b7b4eebdba7b ("dyndbg: gather __dyndbg[] state into struct _ddebug_info")
Signed-off-by: Jim Cromie <jim.cromie@...il.com>
---
 lib/dynamic_debug.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 19bf66229d45..eb1fb10d7272 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -1348,8 +1348,7 @@ static void ddebug_attach_client_module_classes(struct ddebug_table *dt, const s
  * Allocate a new ddebug_table for the given module
  * and add it to the global list.
  */
-static int __ddebug_add_module(struct _ddebug_info *di, unsigned int base,
-			       const char *modname)
+int ddebug_add_module(struct _ddebug_info *di, const char *modname)
 {
 	struct ddebug_table *dt;
 
@@ -1391,11 +1390,6 @@ static int __ddebug_add_module(struct _ddebug_info *di, unsigned int base,
 	return 0;
 }
 
-int ddebug_add_module(struct _ddebug_info *di, const char *modname)
-{
-	return __ddebug_add_module(di, 0, modname);
-}
-
 /* helper for ddebug_dyndbg_(boot|module)_param_cb */
 static int ddebug_dyndbg_param_cb(char *param, char *val,
 				const char *modname, int on_err)
@@ -1538,7 +1532,7 @@ static int __init dynamic_debug_init(void)
 			mod_ct++;
 			di.num_descs = mod_sites;
 			di.descs = iter_mod_start;
-			ret = __ddebug_add_module(&di, i - mod_sites, modname);
+			ret = ddebug_add_module(&di, modname);
 			if (ret)
 				goto out_err;
 
@@ -1549,7 +1543,7 @@ static int __init dynamic_debug_init(void)
 	}
 	di.num_descs = mod_sites;
 	di.descs = iter_mod_start;
-	ret = __ddebug_add_module(&di, i - mod_sites, modname);
+	ret = ddebug_add_module(&di, modname);
 	if (ret)
 		goto out_err;
 
-- 
2.39.0