3.16.35-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Al Viro <v...@zeniv.linux.org.uk>
commit 6b87b70c5339f30e3c5b32085e69625906513dc2 upstream.
Prior to 3.13 make allmodconfig KCONFIG_ALLCONFIG=/dev/null used
to be equivalent to make allmodconfig; these days it hardwires MODULES to n.
In fact, any KCONFIG_ALLCONFIG that doesn't set MODULES explicitly is
treated as if it set it to n.
Regression had been introduced by commit cfa98f ("kconfig: do not
override symbols already set"); what happens is that conf_read_simple()
does sym_calc_value(modules_sym) on exit, which leaves SYMBOL_VALID set and
has conf_set_all_new_symbols() skip modules_sym.
It's pretty easy to fix - simply move that call of sym_calc_value()
into the callers, except for the ones in KCONFIG_ALLCONFIG handling.
Objections?
Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
Fixes: cfa98f2e0ae9 ("kconfig: do not override symbols already set")
Signed-off-by: Michal Marek <mma...@suse.com>
[bwh: Backported to 3.16: old code also checked for modules_sym != NULL;
drop the check since it's only useful for other projects]
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -261,11 +261,8 @@ int conf_read_simple(const char *name, i
if (in)
goto load;
sym_add_change_count(1);
- if (!sym_defconfig_list) {
- if (modules_sym)
- sym_calc_value(modules_sym);
+ if (!sym_defconfig_list)
return 1;
- }
for_all_defaults(sym_defconfig_list, prop) {
if (expr_calc_value(prop->visible.expr) == no ||
@@ -399,8 +396,6 @@ setsym:
free(line);
fclose(in);
- if (modules_sym)
- sym_calc_value(modules_sym);
return 0;
}
@@ -411,8 +406,12 @@ int conf_read(const char *name)
sym_set_change_count(0);
- if (conf_read_simple(name, S_DEF_USER))
+ if (conf_read_simple(name, S_DEF_USER)) {
+ sym_calc_value(modules_sym);
return 1;
+ }
+
+ sym_calc_value(modules_sym);
for_all_symbols(i, sym) {
sym_calc_value(sym);
@@ -843,6 +842,7 @@ static int conf_split_config(void)
name = conf_get_autoconfig_name();
conf_read_simple(name, S_DEF_AUTO);
+ sym_calc_value(modules_sym);
if (chdir("include/config"))
return 1;
