powerpc: Add -Werror at arch/powerpc level

Back when I added -Werror in commit ba55bd74360e ("powerpc: Add
configurable -Werror for arch/powerpc") I did it by adding it to most
of the arch Makefiles.

At the time we excluded math-emu, because apparently it didn't build
cleanly. But that seems to have been fixed somewhere in the interim.

So move the -Werror addition to the top-level of the arch, this saves
us from repeating it in every Makefile and means we won't forget to
add it to any new sub-dirs.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

13 files changed, 2 insertions, 21 deletions

diff --git a/arch/powerpc/Kbuild b/arch/powerpc/Kbuild
index 690a498da050..1625a06802ca 100644
--- a/arch/powerpc/Kbuild
+++ b/arch/powerpc/Kbuild
@@ -1,3 +1,5 @@
+subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
+
 obj-y += kernel/
 obj-y += mm/
 obj-y += lib/
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index fb70e9b6fa67..53d4b8d5b54d 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -8,8 +8,6 @@ CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
 # Disable clang warning for using setjmp without setjmp.h header
 CFLAGS_crash.o		+= $(call cc-disable-warning, builtin-requires-header)
 
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
-
 ifdef CONFIG_PPC64
 CFLAGS_prom_init.o	+= $(NO_MINIMAL_TOC)
 endif
diff --git a/arch/powerpc/kernel/trace/Makefile b/arch/powerpc/kernel/trace/Makefile
index d868ba42032f..b1725ad3e13d 100644
--- a/arch/powerpc/kernel/trace/Makefile
+++ b/arch/powerpc/kernel/trace/Makefile
@@ -3,8 +3,6 @@
 # Makefile for the powerpc trace subsystem
 #
 
-subdir-ccflags-$(CONFIG_PPC_WERROR)	:= -Werror
-
 ifdef CONFIG_FUNCTION_TRACER
 # do not trace tracer code
 CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index f872c04bb5b1..e9d579921a96 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -3,8 +3,6 @@
 # Makefile for Kernel-based Virtual Machine module
 #
 
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
-
 ccflags-y := -Ivirt/kvm -Iarch/powerpc/kvm
 KVM := ../../../virt/kvm
 
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 670286808928..703afa1808ed 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -3,8 +3,6 @@
 # Makefile for ppc-specific library files..
 #
 
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
-
 ccflags-$(CONFIG_PPC64)	:= $(NO_MINIMAL_TOC)
 
 CFLAGS_REMOVE_code-patching.o = $(CC_FLAGS_FTRACE)
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index ceb352ccbc76..ca96e7be4d0e 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -3,8 +3,6 @@
 # Makefile for the linux ppc-specific parts of the memory manager.
 #
 
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
-
 ccflags-$(CONFIG_PPC64)	:= $(NO_MINIMAL_TOC)
 
 CFLAGS_REMOVE_slb.o = $(CC_FLAGS_FTRACE)
diff --git a/arch/powerpc/oprofile/Makefile b/arch/powerpc/oprofile/Makefile
index 7a7834c39f64..8d26d7416481 100644
--- a/arch/powerpc/oprofile/Makefile
+++ b/arch/powerpc/oprofile/Makefile
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 ccflags-$(CONFIG_PPC64)	:= $(NO_MINIMAL_TOC)
 
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
index 82986d2acd9b..ab26df5bacb9 100644
--- a/arch/powerpc/perf/Makefile
+++ b/arch/powerpc/perf/Makefile
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 obj-$(CONFIG_PERF_EVENTS)	+= callchain.o perf_regs.o
 
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index e46bb7ea710f..143d4417f6cc 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
-
 obj-$(CONFIG_FSL_ULI1575)	+= fsl_uli1575.o
 
 obj-$(CONFIG_PPC_PMAC)		+= powermac/
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index f730539074c4..2caa4defdfb6 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 ccflags-$(CONFIG_PPC64)		:= $(NO_MINIMAL_TOC)
 
@@ -56,8 +55,6 @@ obj-$(CONFIG_PPC_SCOM)		+= scom.o
 
 obj-$(CONFIG_PPC_EARLY_DEBUG_MEMCONS)	+= udbg_memcons.o
 
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
-
 obj-$(CONFIG_PPC_XICS)		+= xics/
 obj-$(CONFIG_PPC_XIVE)		+= xive/
 
diff --git a/arch/powerpc/sysdev/xics/Makefile b/arch/powerpc/sysdev/xics/Makefile
index 5d438d92472b..ba1e3117b1c0 100644
--- a/arch/powerpc/sysdev/xics/Makefile
+++ b/arch/powerpc/sysdev/xics/Makefile
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 obj-y				+= xics-common.o
 obj-$(CONFIG_PPC_ICP_NATIVE)	+= icp-native.o
diff --git a/arch/powerpc/sysdev/xive/Makefile b/arch/powerpc/sysdev/xive/Makefile
index 536d6e5706e3..dea2abc23f4d 100644
--- a/arch/powerpc/sysdev/xive/Makefile
+++ b/arch/powerpc/sysdev/xive/Makefile
@@ -1,4 +1,3 @@
-subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 obj-y				+= common.o
 obj-$(CONFIG_PPC_XIVE_NATIVE)	+= native.o
diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile
index 9d7d8e6d705c..69e7fb47bcaa 100644
--- a/arch/powerpc/xmon/Makefile
+++ b/arch/powerpc/xmon/Makefile
@@ -4,8 +4,6 @@
 # Disable clang warning for using setjmp without setjmp.h header
 subdir-ccflags-y := $(call cc-disable-warning, builtin-requires-header)
 
-subdir-ccflags-$(CONFIG_PPC_WERROR) += -Werror
-
 GCOV_PROFILE := n
 UBSAN_SANITIZE := n