lede/package/boot/uboot-sunxi/patches/221-compatible-old-dtc.patch
AmadeusGhost 6901278ef0
kernel: bump to 4.14.169, 4.19.101 (#2963)
* kernel: bump to 4.14.169, 4.19.101

* uboot: update to latest

* mediatek: bump to v4.19

* ath79: switch to wpad

* Revert 'grub2: update to latest'
2020-02-06 21:45:40 +08:00

53 lines
1.9 KiB
Diff

Revert the commit c0e032e0090d65 ("scripts/dtc: Update to upstream
version v1.4.3")
OpenWrt uses the dtc from the kernel also in u-boot, but when we compile
against kernel 4.9 we run into some errors because it is too old now.
Add the options only when they are supported to make it compatible with
dtc from kernel 4.9.
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -173,6 +173,11 @@ ld-version = $(shell $(LD) --version | $
# Usage: $(call ld-ifversion, -ge, 22252, y)
ld-ifversion = $(shell [ $(ld-version) $(1) $(2) ] && echo $(3) || echo $(4))
+# dtc-option
+# Usage: DTC_FLAGS += $(call dtc-option,-Wno-unit_address_vs_reg)
+dtc-option = $(call try-run,\
+ echo '/dts-v1/; / {};' | $(DTC) $(1),$(1),$(2))
+
######
###
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -56,8 +56,8 @@ endif
KBUILD_CFLAGS += $(warning)
-dtc-warning-2 += -Wnode_name_chars_strict
-dtc-warning-2 += -Wproperty_name_chars_strict
+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)))
@@ -68,11 +68,11 @@ DTC_FLAGS += $(dtc-warning)
else
# Disable noisy checks by default
-DTC_FLAGS += -Wno-unit_address_vs_reg
-DTC_FLAGS += -Wno-simple_bus_reg
-DTC_FLAGS += -Wno-unit_address_format
-DTC_FLAGS += -Wno-pci_bridge
-DTC_FLAGS += -Wno-pci_device_bus_num
-DTC_FLAGS += -Wno-pci_device_reg
+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