linux-kernel - [PATCH v2] kconfig: Create links to main menu items in search

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Date:   Mon, 13 Sep 2021 19:45:14 +0300
From:   Ariel Marcovitch <arielmarcovitch@...il.com>
To:     masahiroy@...nel.org
Cc:     linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ariel Marcovitch <arielmarcovitch@...il.com>
Subject: [PATCH v2] kconfig: Create links to main menu items in search

When one searches for a main menu item, links aren't created for it like
with the rest of the symbols.

This happens because we trace the item until we get to the rootmenu, but
we don't include it in the path of the item. The rationale was probably
that we don't want to show the main menu in the path of all items,
because it is redundant.

However, when an item has only the rootmenu in its path it should be
included, because this way the user can jump to its location.

Add a 'Main menu' entry in the 'Location:' section for the kconfig
items.

This makes the 'if (i > 0)' superfluous because each item with prompt
will have at least one menu in its path.

Signed-off-by: Ariel Marcovitch <arielmarcovitch@...il.com>
---
 scripts/kconfig/menu.c | 33 ++++++++++++++++++---------------
 1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 606ba8a63c24..3d6f7cba8846 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -728,7 +728,7 @@ static void get_prompt_str(struct gstr *r, struct property *prop,
 		get_dep_str(r, prop->visible.expr, "  Visible if: ");
 
 	menu = prop->menu->parent;
-	for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
+	for (i = 0; menu && i < 8; menu = menu->parent) {
 		bool accessible = menu_is_visible(menu);
 
 		submenu[i++] = menu;
@@ -758,21 +758,24 @@ static void get_prompt_str(struct gstr *r, struct property *prop,
 		list_add_tail(&jump->entries, head);
 	}
 
-	if (i > 0) {
-		str_printf(r, "  Location:\n");
-		for (j = 4; --i >= 0; j += 2) {
-			menu = submenu[i];
-			if (jump && menu == location)
-				jump->offset = strlen(r->s);
-			str_printf(r, "%*c-> %s", j, ' ',
-				   menu_get_prompt(menu));
-			if (menu->sym) {
-				str_printf(r, " (%s [=%s])", menu->sym->name ?
-					menu->sym->name : "<choice>",
-					sym_get_string_value(menu->sym));
-			}
-			str_append(r, "\n");
+	str_printf(r, "  Location:\n");
+	for (j = 4; --i >= 0; j += 2) {
+		menu = submenu[i];
+		if (jump && menu == location)
+			jump->offset = strlen(r->s);
+
+		if (menu == &rootmenu)
+			/* The real rootmenu prompt is ugly */
+			str_printf(r, "%*cMain menu", j, ' ');
+		else
+			str_printf(r, "%*c-> %s", j, ' ', menu_get_prompt(menu));
+
+		if (menu->sym) {
+			str_printf(r, " (%s [=%s])", menu->sym->name ?
+				menu->sym->name : "<choice>",
+				sym_get_string_value(menu->sym));
 		}
+		str_append(r, "\n");
 	}
 }
 

base-commit: a9086b878b7fd65894eb8cb1fa395dd469970566
-- 
2.25.1