util/kconfig: Uprev to Linux 6.6's kconfig
Upstream reimplemented KCONFIG_STRICT, just calling it KCONFIG_WERROR.
Therefore, adapt our build system and documentation. Upstream is less
strict at this time, but there's a proposed patch that got imported.
TEST=`util/abuild/abuild -C` output (config.h and
config.build) remains the same. Also, the failure type fixed in
https://review.coreboot.org/c/coreboot/+/11272 can be detected,
which I tested by manually breaking our Kconfig in a similar way.
Change-Id: I322fb08a2f7308b93cff71a5dd4136f1a998773b
Signed-off-by: Patrick Georgi <patrick@coreboot.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79259
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
diff --git a/Makefile b/Makefile
index 29597c8..5ed6933 100644
--- a/Makefile
+++ b/Makefile
@@ -29,13 +29,15 @@
KCONFIG_SPLITCONFIG := $(obj)/config/
KCONFIG_TRISTATE := $(obj)/tristate.conf
KCONFIG_NEGATIVES := 1
-KCONFIG_STRICT := 1
+KCONFIG_WERROR:= 1
+KCONFIG_WARN_UNKNOWN_SYMBOLS:= 1
KCONFIG_PACKAGE := CB.Config
KCONFIG_MAKEFILE_REAL ?= $(objk)/Makefile.real
COREBOOT_EXPORTS += KCONFIG_CONFIG KCONFIG_AUTOHEADER KCONFIG_AUTOCONFIG
COREBOOT_EXPORTS += KCONFIG_DEPENDENCIES KCONFIG_SPLITCONFIG KCONFIG_TRISTATE
-COREBOOT_EXPORTS += KCONFIG_NEGATIVES KCONFIG_STRICT
+COREBOOT_EXPORTS += KCONFIG_NEGATIVES KCONFIG_WERROR
+COREBOOT_EXPORTS += KCONFIG_WARN_UNKNOWN_SYMBOLS
COREBOOT_EXPORTS += KCONFIG_AUTOADS KCONFIG_PACKAGE
# Make does not offer a recursive wildcard function, so here's one: