kconfig: strip 'CONFIG_' automatically in kernel configuration search

Modify the ncurses configuration tool ('make menuconfig') in a way that the
user can enter the search string (/) both with or without the leading
'CONFIG_'.

This simplifies using copy & paste from .config files because you can
select the whole word.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 9 insertions, 2 deletions

diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index d0e4fa594fc7..d2c2a429887b 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -419,11 +419,13 @@ static void search_conf(void)
 {
         struct symbol **sym_arr;
         struct gstr res;
+        char *dialog_input;
         int dres;
 again:
         dialog_clear();
         dres = dialog_inputbox(_("Search Configuration Parameter"),
-                              _("Enter CONFIG_ (sub)string to search for (omit CONFIG_)"),
+                              _("Enter CONFIG_ (sub)string to search for "
+                                "(with or without \"CONFIG\")"),
                               10, 75, "");
         switch (dres) {
         case 0:
@@ -435,7 +437,12 @@ again:
                 return;
         }
 
-        sym_arr = sym_re_search(dialog_input_result);
+        /* strip CONFIG_ if necessary */
+        dialog_input = dialog_input_result;
+        if (strncasecmp(dialog_input_result, "CONFIG_", 7) == 0)
+                dialog_input += 7;
+
+        sym_arr = sym_re_search(dialog_input);
         res = get_relations_str(sym_arr);
         free(sym_arr);
         show_textbox(_("Search Results"), str_get(&res), 0, 0);