[PATCH 5/6] kconfig: require an exact match for "is not set" to disable CONFIG option

Masahiro Yamada
2023-11-18T07:59:21Z

Currently, any string starting "is not set" disables a CONFIG option.

For example, "# CONFIG_FOO is not settled down" is accepted as valid
input, functioning the same as "# CONFIG_FOO is not set". It is a
long-standing oddity.

Check the line against the exact pattern "is not set".

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

scripts/kconfig/confdata.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 795ac6c9378f..958be12cd621 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -454,7 +454,7 @@ int conf_read_simple(const char *name, int def)
if (!p)
continue;
*p++ = 0;
- if (strncmp(p, "is not set", 10))
+ if (strcmp(p, "is not set"))
continue;

val = "n";
--
2.40.1