util/kconfig/patches/0002-Kconfig-Change-symbol-override-from-warning-to-notic.patch

From 20df4491aa88eb4a7f97090fbc4ff53f81926861 Mon Sep 17 00:00:00 2001
From: Martin Roth <martinroth@google.com>
Date: Wed, 21 Sep 2016 14:27:26 -0600
Subject: [PATCH] Kconfig: Change symbol override from warning to notice

Overriding symbols within a .config is pretty common when doing
automated builds with various different options.  The warning
text makes it sound like this is an issue, so change it to say
'notice' instead.  We could get rid of it completely, but it's
not a bad thing to know that we have two copies of the same symbol
in the .config.

BUG=chrome-os-partner:54059
TEST=copy a disabled kconfig option to the end and set it to y.
See notice text instead of warning.

Signed-off-by: Martin Roth <martinroth@google.com>
---
 util/kconfig/confdata.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

Index: kconfig/confdata.c
===================================================================
--- kconfig.orig/confdata.c
+++ kconfig/confdata.c
@@ -166,6 +166,16 @@ static void conf_warning(const char *fmt
 	conf_warnings++;
 }
 
+static void conf_notice(const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	fprintf(stderr, "%s:%d:notice: ", conf_filename, conf_lineno);
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+	va_end(ap);
+}
+
 static void conf_default_message_callback(const char *s)
 {
 	printf("#\n# ");
@@ -454,7 +464,7 @@ load:
 					sym->type = S_BOOLEAN;
 			}
 			if (sym->flags & def_flags) {
-				conf_warning("override: reassigning to symbol %s", sym->name);
+				conf_notice("override: reassigning to symbol %s", sym->name);
 			}
 			switch (sym->type) {
 			case S_BOOLEAN:
@@ -498,7 +508,7 @@ load:
 			}
 
 			if (sym->flags & def_flags) {
-				conf_warning("override: reassigning to symbol %s", sym->name);
+				conf_notice("override: reassigning to symbol %s", sym->name);
 			}
 			if (conf_set_sym_val(sym, def, def_flags, p))
 				continue;
@@ -523,7 +533,7 @@ load:
 				break;
 			case yes:
 				if (cs->def[def].tri != no)
-					conf_warning("override: %s changes choice state", sym->name);
+					conf_notice("override: %s changes choice state", sym->name);
 				cs->def[def].val = sym;
 				break;
 			}