[PATCH] kconfig: do not overwrite symbol direct dependency in assignment

From: Arnaud Lacombe
Date: Wed Jun 08 2011 - 01:42:22 EST


Hi Michal,

Re-sent, mostly to have the commit log right.

Regards,
- Arnaud

---
From: Arnaud Lacombe <lacombar@xxxxxxxxx>

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@xxxxxxxxxxxxxxx>
Tested-by: Yann E. Morin <yann.morin.1998@xxxxxxxxxxxxxxx>
Signed-off-by: Arnaud Lacombe <lacombar@xxxxxxxxx>
---
scripts/kconfig/menu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 5fdf10d..d0c65e7 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -350,7 +350,7 @@ void menu_finalize(struct menu *parent)
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) &&
--
1.7.3.4.574.g608b.dirty

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