linux-kernel - [PATCH v5 15/22] dyndbg: add for_each_boxed

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Message-ID: <20230801170255.163237-17-jim.cromie@gmail.com>
Date:   Tue,  1 Aug 2023 11:02:48 -0600
From:   Jim Cromie <jim.cromie@...il.com>
To:     daniel.vetter@...ll.ch, daniel@...ll.ch, jbaron@...mai.com,
        gregkh@...uxfoundation.org, 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:     linux@...musvillemoes.dk, joe@...ches.com, jani.nikula@...el.com,
        ville.syrjala@...ux.intel.com, seanpaul@...omium.org,
        robdclark@...il.com, Jim Cromie <jim.cromie@...il.com>
Subject: [PATCH v5 15/22] dyndbg: add for_each_boxed_vector

Add a for_each iterator to walk a counted vector member in a struct
(ie the box), and use it to replace 8 open-coded loops.

Signed-off-by: Jim Cromie <jim.cromie@...il.com>
---
 lib/dynamic_debug.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index d78e48d3af1c..c4d7a70a0723 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -157,6 +157,9 @@ static void vpr_info_dq(const struct ddebug_query *query, const char *msg)
 		  _dt->num_class_users);				\
 	})
 
+#define for_each_boxed_vector(_box, _vec, _len, _ct, _curs)		\
+	for (_ct = 0, _curs = _box->_vec; _ct < _box->_len; _ct++, _curs++)
+
 #define __outvar /* filled by callee */
 static struct ddebug_class_map *ddebug_find_valid_class(struct ddebug_table const *dt,
 							const char *class_string,
@@ -166,7 +169,7 @@ static struct ddebug_class_map *ddebug_find_valid_class(struct ddebug_table cons
 	struct ddebug_class_user *cli;
 	int i, idx;
 
-	for (i = 0, map = dt->classes; i < dt->num_classes; i++, map++) {
+	for_each_boxed_vector(dt, classes, num_classes, i, map) {
 		idx = match_string(map->class_names, map->length, class_string);
 		if (idx >= 0) {
 			*class_id = idx + map->base;
@@ -174,7 +177,7 @@ static struct ddebug_class_map *ddebug_find_valid_class(struct ddebug_table cons
 			return map;
 		}
 	}
-	for (i = 0, cli = dt->class_users; i < dt->num_class_users; i++, cli++) {
+	for_each_boxed_vector(dt, class_users, num_class_users, i, cli) {
 		idx = match_string(cli->map->class_names, cli->map->length, class_string);
 		if (idx >= 0) {
 			*class_id = idx + cli->map->base;
@@ -1053,11 +1056,11 @@ static const char *ddebug_class_name(struct ddebug_table *dt, struct _ddebug *dp
 	struct ddebug_class_user *cli = dt->class_users;
 	int i;
 
-	for (i = 0; i < dt->num_classes; i++, map++)
+	for_each_boxed_vector(dt, classes, num_classes, i, map)
 		if (class_in_range(dp->class_id, map))
 			return map->class_names[dp->class_id - map->base];
 
-	for (i = 0; i < dt->num_class_users; i++, cli++)
+	for_each_boxed_vector(dt, class_users, num_class_users, i, cli)
 		if (class_in_range(dp->class_id, cli->map))
 			return cli->map->class_names[dp->class_id - cli->map->base];
 
@@ -1211,7 +1214,7 @@ static void ddebug_attach_module_classes(struct ddebug_table *dt, struct _ddebug
 	struct ddebug_class_map *cm;
 	int i, nc = 0;
 
-	for (i = 0, cm = di->classes; i < di->num_classes; i++, cm++) {
+	for_each_boxed_vector(di, classes, num_classes, i, cm) {
 
 		if (!strcmp(cm->mod_name, dt->mod_name)) {
 			vpr_cm_info(cm, "classes[%d]:", i);
@@ -1224,7 +1227,7 @@ static void ddebug_attach_module_classes(struct ddebug_table *dt, struct _ddebug
 		vpr_info("module:%s attached %d classes\n", dt->mod_name, nc);
 
 	/* now iterate dt */
-	for (i = 0, cm = dt->classes; i < dt->num_classes; i++, cm++)
+	for_each_boxed_vector(di, classes, num_classes, i, cm)
 		ddebug_apply_params(cm, cm->mod_name);
 }
 
@@ -1244,7 +1247,7 @@ static void ddebug_attach_user_module_classes(struct ddebug_table *dt,
 	 * module's refs, save to dt.  For loadables, this is the
 	 * whole array.
 	 */
-	for (i = 0, cli = di->class_users; i < di->num_class_users; i++, cli++) {
+	for_each_boxed_vector(di, class_users, num_class_users, i, cli) {
 
 		if (WARN_ON(!cli || !cli->map || !cli->user_mod_name))
 			continue;
@@ -1259,8 +1262,7 @@ static void ddebug_attach_user_module_classes(struct ddebug_table *dt,
 	}
 	dt->num_class_users = nc;
 
-	/* now iterate dt */
-	for (i = 0, cli = dt->class_users; i < dt->num_class_users; i++, cli++)
+	for_each_boxed_vector(di, class_users, num_class_users, i, cli)
 		ddebug_apply_params(cli->map, cli->user_mod_name);
 
 	vpr_dt_info(dt, "attach-client-module: ");
-- 
2.41.0