kconfig: do not overwrite symbol direct dependency in assignment
Considering the following configuration:
config F
bool "F"
choice AB
bool "AB"
config A
bool "A"
config B
bool "B"
endchoice
if A
config D
bool
default y if F
select E
config E
bool "E"
endif
if B
config D
bool
default y if F
select E
config E
bool "E"
endif
The following configuration:
CONFIG_F=y
CONFIG_A=y
# CONFIG_B is not set
CONFIG_D=y
CONFIG_E=y
emits a spurious warning:
(D) selects E which has unmet direct dependencies (B)
If a symbol appears in two different branch of the tree, it should inherit the
dependency of both parent, not just the last one.
Reported-by: Yann E. Morin <yann.morin.1998@anciens.enib.fr>
Tested-by: Yann E. Morin <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index aab5a1f..d660086 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -351,7 +351,7 @@
last_menu->next = NULL;
}
- sym->dir_dep.expr = parent->dep;
+ sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
}
for (menu = parent->list; menu; menu = menu->next) {
if (sym && sym_is_choice(sym) &&