placate gcc 8.0.1 sprintf overflow warnings in config tools

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 8f4ecbd33..b05b96e45 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -334,7 +334,9 @@ int conf_write(const char *name)
         struct symbol *sym;
         struct menu *menu;
         const char *basename;
-        char dirname[128], tmpname[128], newname[128];
+        char dirname[128];
+        char tmpname[256];
+        char newname[256];
         int type, l;
         const char *str;
         time_t now;