kconfig: add unexpected data itself to warning

If the .config parser runs into unexpected data it emits warnings like:
    .config:6911:warning: unexpected data

Add the unexpected data itself to this warning. That makes it easier to
discover what is actually going wrong:
     .config:6911:warning: unexpected data: CONFOG_CHARGER_TPS65217=m

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michal Marek <mmarek@suse.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index dd243d2abd87..297b079ae4d9 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -375,7 +375,9 @@ load:
                                 continue;
                 } else {
                         if (line[0] != '\r' && line[0] != '\n')
-                                conf_warning("unexpected data");
+                                conf_warning("unexpected data: %.*s",
+                                             (int)strcspn(line, "\r\n"), line);
+
                         continue;
                 }
 setsym: