powerpc/Makefile: Remove bits related to the previous use of -mcmodel…

…=large

All supported compilers today (gcc v5.1+ and clang v11+) have support for
-mcmodel=medium. As such, NO_MINIMAL_TOC is no longer being set. Remove
NO_MINIMAL_TOC as well as the fallback to -mminimal-toc.

Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Naveen N Rao <naveen@kernel.org>

arch/powerpc/Makefile

@@ -114,7 +114,6 @@ LDFLAGS_vmlinux	:= $(LDFLAGS_vmlinux-y)
 
 ifdef CONFIG_PPC64
 ifndef CONFIG_PPC_KERNEL_PCREL
-ifeq ($(call cc-option-yn,-mcmodel=medium),y)
 	# -mcmodel=medium breaks modules because it uses 32bit offsets from
 	# the TOC pointer to create pointers where possible. Pointers into the
 	# percpu data area are created by this method.
@@ -124,9 +123,6 @@ ifeq ($(call cc-option-yn,-mcmodel=medium),y)
 	# kernel percpu data space (starting with 0xc...). We need a full
 	# 64bit relocation for this to work, hence -mcmodel=large.
 	KBUILD_CFLAGS_MODULE += -mcmodel=large
-else
-	export NO_MINIMAL_TOC := -mno-minimal-toc
-endif
 endif
 endif
 
@@ -139,7 +135,7 @@ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcall-aixdesc)
 endif
 endif
-CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
+CFLAGS-$(CONFIG_PPC64)	+= -mcmodel=medium
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mlong-double-128)
 

arch/powerpc/kernel/Makefile

@@ -3,9 +3,6 @@
 # Makefile for the linux kernel.
 #
 
-ifdef CONFIG_PPC64
-CFLAGS_prom_init.o	+= $(NO_MINIMAL_TOC)
-endif
 ifdef CONFIG_PPC32
 CFLAGS_prom_init.o      += -fPIC
 CFLAGS_btext.o		+= -fPIC

arch/powerpc/lib/Makefile

@@ -3,8 +3,6 @@
 # Makefile for ppc-specific library files..
 #
 
-ccflags-$(CONFIG_PPC64)	:= $(NO_MINIMAL_TOC)
-
 CFLAGS_code-patching.o += -fno-stack-protector
 CFLAGS_feature-fixups.o += -fno-stack-protector
 

arch/powerpc/mm/Makefile

@@ -3,8 +3,6 @@
 # Makefile for the linux ppc-specific parts of the memory manager.
 #
 
-ccflags-$(CONFIG_PPC64)	:= $(NO_MINIMAL_TOC)
-
 obj-y				:= fault.o mem.o pgtable.o maccess.o pageattr.o \
 				   init_$(BITS).o pgtable_$(BITS).o \
 				   pgtable-frag.o ioremap.o ioremap_$(BITS).o \

arch/powerpc/mm/book3s64/Makefile

@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-ccflags-y	:= $(NO_MINIMAL_TOC)
-
 obj-y				+= mmu_context.o pgtable.o trace.o
 ifdef CONFIG_PPC_64S_HASH_MMU
 CFLAGS_REMOVE_slb.o = $(CC_FLAGS_FTRACE)

arch/powerpc/mm/nohash/Makefile

@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-ccflags-$(CONFIG_PPC64)	:= $(NO_MINIMAL_TOC)
-
 obj-y				+= mmu_context.o tlb.o tlb_low.o kup.o
 obj-$(CONFIG_PPC_BOOK3E_64)  	+= tlb_low_64e.o book3e_pgtable.o
 obj-$(CONFIG_40x)		+= 40x.o

arch/powerpc/platforms/pseries/Makefile

@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-ccflags-$(CONFIG_PPC64)			:= $(NO_MINIMAL_TOC)
 ccflags-$(CONFIG_PPC_PSERIES_DEBUG)	+= -DDEBUG
 
 obj-y			:= lpar.o hvCall.o nvram.o reconfig.o \

arch/powerpc/sysdev/Makefile

@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-ccflags-$(CONFIG_PPC64)		:= $(NO_MINIMAL_TOC)
-
 mpic-msi-obj-$(CONFIG_PCI_MSI)	+= mpic_msi.o mpic_u3msi.o
 obj-$(CONFIG_MPIC)		+= mpic.o $(mpic-msi-obj-y)
 obj-$(CONFIG_MPIC_TIMER)        += mpic_timer.o

arch/powerpc/xmon/Makefile

@@ -10,8 +10,6 @@ KCSAN_SANITIZE := n
 # Disable ftrace for the entire directory
 ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
 
-ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)
-
 # Clang stores addresses on the stack causing the frame size to blow
 # out. See https://github.com/ClangBuiltLinux/linux/issues/252
 ccflags-$(CONFIG_CC_IS_CLANG) += -Wframe-larger-than=4096