aboutsummaryrefslogtreecommitdiff
path: root/scripts/kconfig/symbol.c
diff options
context:
space:
mode:
authorSam Ravnborg <sam@ravnborg.org>2010-07-31 23:35:32 +0200
committerMichal Marek <mmarek@suse.cz>2010-08-03 13:49:32 +0200
commitc252147de68cf58ba601278481e473dab432cee4 (patch)
treed69910edf4c8fe795788aac65fb0e7d320b64c68 /scripts/kconfig/symbol.c
parent0748cb3e1fbd89c03a98c15e91ad65797981de77 (diff)
downloadlinaro-lsk-c252147de68cf58ba601278481e473dab432cee4.tar.gz
kconfig: refactor code in symbol.c
Move logic to determine default for a choice to a separate function. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/kconfig/symbol.c')
-rw-r--r--scripts/kconfig/symbol.c46
1 files changed, 33 insertions, 13 deletions
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index bc1e1584e2d..0a013ab3ae2 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -226,22 +226,18 @@ static void sym_calc_visibility(struct symbol *sym)
}
}
-static struct symbol *sym_calc_choice(struct symbol *sym)
+/*
+ * Find the default symbol for a choice.
+ * First try the default values for the choice symbol
+ * Next locate the first visible choice value
+ * Return NULL if none was found
+ */
+struct symbol *sym_choice_default(struct symbol *sym)
{
struct symbol *def_sym;
struct property *prop;
struct expr *e;
- /* first calculate all choice values' visibilities */
- prop = sym_get_choice_prop(sym);
- expr_list_for_each_sym(prop->expr, e, def_sym)
- sym_calc_visibility(def_sym);
-
- /* is the user choice visible? */
- def_sym = sym->def[S_DEF_USER].val;
- if (def_sym && def_sym->visible != no)
- return def_sym;
-
/* any of the defaults visible? */
for_all_defaults(sym, prop) {
prop->visible.tri = expr_calc_value(prop->visible.expr);
@@ -258,11 +254,35 @@ static struct symbol *sym_calc_choice(struct symbol *sym)
if (def_sym->visible != no)
return def_sym;
- /* no choice? reset tristate value */
- sym->curr.tri = no;
+ /* failed to locate any defaults */
return NULL;
}
+static struct symbol *sym_calc_choice(struct symbol *sym)
+{
+ struct symbol *def_sym;
+ struct property *prop;
+ struct expr *e;
+
+ /* first calculate all choice values' visibilities */
+ prop = sym_get_choice_prop(sym);
+ expr_list_for_each_sym(prop->expr, e, def_sym)
+ sym_calc_visibility(def_sym);
+
+ /* is the user choice visible? */
+ def_sym = sym->def[S_DEF_USER].val;
+ if (def_sym && def_sym->visible != no)
+ return def_sym;
+
+ def_sym = sym_choice_default(sym);
+
+ if (def_sym == NULL)
+ /* no choice? reset tristate value */
+ sym->curr.tri = no;
+
+ return def_sym;
+}
+
void sym_calc_value(struct symbol *sym)
{
struct symbol_value newval, oldval;