From 50749d2ac30dd7af94d8c9ed64276f92d9d396f5 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Mon, 15 May 2017 16:07:33 +0900
Subject: kbuild: update DTC warning settings for bus and node/property name
 checks

Recent commits of DTC introduced new warnings checking PCI and simple
buses, unit address formatting, and stricter node and property name
checking.  Disable the new DTC warnings by default.  As before,
warnings are enabled with W=*.  The strict node and property name
checks are a bit subjective, so they are only enabled for W=2.
(This policy reflects the commit 8654cb8d0371 of Linux.)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 7b2cffc..90dc149 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -58,9 +58,23 @@ endif
 
 KBUILD_CFLAGS += $(warning)
 
+dtc-warning-2 += $(call dtc-option,-Wnode_name_chars_strict)
+dtc-warning-2 += $(call dtc-option,-Wproperty_name_chars_strict)
+
+dtc-warning := $(dtc-warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+dtc-warning += $(dtc-warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+dtc-warning += $(dtc-warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+
+DTC_FLAGS += $(dtc-warning)
+
 else
 
 # Disable noisy checks by default
 DTC_FLAGS += $(call dtc-option,-Wno-unit_address_vs_reg)
+DTC_FLAGS += $(call dtc-option,-Wno-simple_bus_reg)
+DTC_FLAGS += $(call dtc-option,-Wno-unit_address_format)
+DTC_FLAGS += $(call dtc-option,-Wno-pci_bridge)
+DTC_FLAGS += $(call dtc-option,-Wno-pci_device_bus_num)
+DTC_FLAGS += $(call dtc-option,-Wno-pci_device_reg)
 
 endif
-- 
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