In Makefiles if we're testing a CONFIG_FOO symbol for equality with 'y' we can instead just use ifdef. The latter reads easily, so convert to it where possible.
Signed-off-by: Rodrigo R. Galvao <rosat...@linux.vnet.ibm.com> Reviewed-by: Mauro S. M. Rodrigues <maur...@linux.vnet.ibm.com> --- arch/powerpc/Makefile | 26 +++++++++++++------------- arch/powerpc/boot/Makefile | 2 +- arch/powerpc/kernel/Makefile | 14 ++++++++------ arch/powerpc/mm/Makefile | 4 ++-- arch/powerpc/net/Makefile | 2 +- arch/powerpc/platforms/52xx/Makefile | 2 +- arch/powerpc/platforms/cell/Makefile | 2 +- arch/powerpc/platforms/pseries/Makefile | 2 +- arch/powerpc/sysdev/Makefile | 2 +- 9 files changed, 29 insertions(+), 27 deletions(-) diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index fb96206..9aee790 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -36,7 +36,7 @@ else KBUILD_DEFCONFIG := ppc64_defconfig endif -ifeq ($(CONFIG_PPC64),y) +ifdef CONFIG_PPC64 new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) ifeq ($(new_nm),y) @@ -74,7 +74,7 @@ KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o endif endif -ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) +ifdef CONFIG_CPU_LITTLE_ENDIAN KBUILD_CFLAGS += -mlittle-endian LDFLAGS += -EL LDEMULATION := lppc @@ -117,7 +117,7 @@ LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) LDFLAGS_vmlinux += $(call ld-option,--orphan-handling=warn) -ifeq ($(CONFIG_PPC64),y) +ifdef CONFIG_PPC64 ifeq ($(call cc-option-yn,-mcmodel=medium),y) # -mcmodel=medium breaks modules because it uses 32bit offsets from # the TOC pointer to create pointers where possible. Pointers into the @@ -134,7 +134,7 @@ endif endif CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no) -ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) +ifdef CONFIG_CPU_LITTLE_ENDIAN CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc)) AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2) else @@ -148,8 +148,8 @@ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions) CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD) CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-mno-readonly-in-sdata) -ifeq ($(CONFIG_PPC_BOOK3S_64),y) -ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) +ifdef CONFIG_PPC_BOOK3S_64 +ifdef CONFIG_CPU_LITTLE_ENDIAN CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power8 CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power9,-mtune=power8) else @@ -173,7 +173,7 @@ CFLAGS-$(CONFIG_POWER9_CPU) += $(call cc-option,-mcpu=power9) CFLAGS-$(CONFIG_PPC_8xx) += $(call cc-option,-mcpu=860) # Altivec option not allowed with e500mc64 in GCC. -ifeq ($(CONFIG_ALTIVEC),y) +ifdef CONFIG_ALTIVEC E5500_CPU := -mcpu=powerpc64 else E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64) @@ -181,8 +181,8 @@ endif CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU) CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU)) -ifeq ($(CONFIG_PPC32),y) -ifeq ($(CONFIG_PPC_E500MC),y) +ifdef CONFIG_PPC32 +ifdef CONFIG_PPC_E500MC CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc) else CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc) @@ -204,7 +204,7 @@ else CHECKFLAGS += -D__LITTLE_ENDIAN__ endif -ifeq ($(CONFIG_476FPE_ERR46),y) +ifdef CONFIG_476FPE_ERR46 KBUILD_LDFLAGS_MODULE += --ppc476-workaround \ -T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds endif @@ -231,12 +231,12 @@ KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) # often slow when they are implemented at all KBUILD_CFLAGS += $(call cc-option,-mno-string) -ifeq ($(CONFIG_6xx),y) +ifdef CONFIG_6xx KBUILD_CFLAGS += -mcpu=powerpc endif # Work around a gcc code-gen bug with -fno-omit-frame-pointer. -ifeq ($(CONFIG_FUNCTION_TRACER),y) +ifdef CONFIG_FUNCTION_TRACER KBUILD_CFLAGS += -mno-sched-epilog endif @@ -381,7 +381,7 @@ install: $(Q)$(MAKE) $(build)=$(boot) install vdso_install: -ifeq ($(CONFIG_PPC64),y) +ifdef CONFIG_PPC64 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ endif $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index deea20c..0fb96c2 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -354,7 +354,7 @@ image-$(CONFIG_AMIGAONE) += cuImage.amigaone # For 32-bit powermacs, build the COFF and miboot images # as well as the ELF images. -ifeq ($(CONFIG_PPC32),y) +ifdef CONFIG_PPC32 image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot endif diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 2b4c40b2..7b09182 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -7,10 +7,10 @@ CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"' subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror -ifeq ($(CONFIG_PPC64),y) +ifdef CONFIG_PPC64 CFLAGS_prom_init.o += $(NO_MINIMAL_TOC) endif -ifeq ($(CONFIG_PPC32),y) +ifdef CONFIG_PPC32 CFLAGS_prom_init.o += -fPIC CFLAGS_btext.o += -fPIC endif @@ -62,13 +62,13 @@ obj-$(CONFIG_EEH) += eeh.o eeh_pe.o eeh_dev.o eeh_cache.o \ obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_FA_DUMP) += fadump.o -ifeq ($(CONFIG_PPC32),y) +ifdef CONFIG_PPC32 obj-$(CONFIG_E500) += idle_e500.o endif obj-$(CONFIG_6xx) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o obj-$(CONFIG_TAU) += tau_6xx.o obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o -ifeq ($(CONFIG_FSL_BOOKE),y) +ifdef CONFIG_FSL_BOOKE obj-$(CONFIG_HIBERNATION) += swsusp_booke.o else obj-$(CONFIG_HIBERNATION) += swsusp_$(BITS).o @@ -109,9 +109,11 @@ obj-$(CONFIG_PCI_MSI) += msi.o obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o crash.o \ machine_kexec_$(BITS).o obj-$(CONFIG_KEXEC_FILE) += machine_kexec_file_$(BITS).o kexec_elf_$(BITS).o -ifeq ($(CONFIG_HAVE_IMA_KEXEC)$(CONFIG_IMA),yy) +ifdef CONFIG_HAVE_IMA_KEXEC +ifdef CONFIG_IMA obj-y += ima_kexec.o endif +endif obj-$(CONFIG_AUDIT) += audit.o obj64-$(CONFIG_AUDIT) += compat_audit.o @@ -164,7 +166,7 @@ PHONY += systbl_chk systbl_chk: $(src)/systbl_chk.sh $(obj)/systbl_chk.i $(call cmd,systbl_chk) -ifeq ($(CONFIG_PPC_OF_BOOT_TRAMPOLINE),y) +ifdef CONFIG_PPC_OF_BOOT_TRAMPOLINE $(obj)/built-in.a: prom_init_check quiet_cmd_prom_init_check = CALL $< diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile index f06f357..cdf6a99 100644 --- a/arch/powerpc/mm/Makefile +++ b/arch/powerpc/mm/Makefile @@ -19,7 +19,7 @@ obj-$(CONFIG_PPC_BOOK3S_64) += pgtable-hash64.o hash_utils_64.o slb_low.o slb.o obj-$(CONFIG_PPC_RADIX_MMU) += pgtable-radix.o tlb-radix.o obj-$(CONFIG_PPC_STD_MMU_32) += ppc_mmu_32.o hash_low_32.o mmu_context_hash32.o obj-$(CONFIG_PPC_STD_MMU) += tlb_hash$(BITS).o -ifeq ($(CONFIG_PPC_BOOK3S_64),y) +ifdef CONFIG_PPC_BOOK3S_64 obj-$(CONFIG_PPC_4K_PAGES) += hash64_4k.o obj-$(CONFIG_PPC_64K_PAGES) += hash64_64k.o endif @@ -31,7 +31,7 @@ obj-$(CONFIG_NEED_MULTIPLE_NODES) += numa.o obj-$(CONFIG_PPC_SPLPAR) += vphn.o obj-$(CONFIG_PPC_MM_SLICES) += slice.o obj-y += hugetlbpage.o -ifeq ($(CONFIG_HUGETLB_PAGE),y) +ifdef CONFIG_HUGETLB_PAGE obj-$(CONFIG_PPC_BOOK3S_64) += hugetlbpage-hash64.o obj-$(CONFIG_PPC_RADIX_MMU) += hugetlbpage-radix.o obj-$(CONFIG_PPC_BOOK3E_MMU) += hugetlbpage-book3e.o diff --git a/arch/powerpc/net/Makefile b/arch/powerpc/net/Makefile index 809f019..c2dec3a 100644 --- a/arch/powerpc/net/Makefile +++ b/arch/powerpc/net/Makefile @@ -2,7 +2,7 @@ # # Arch-specific network modules # -ifeq ($(CONFIG_PPC64),y) +ifdef CONFIG_PPC64 obj-$(CONFIG_BPF_JIT) += bpf_jit_comp64.o else obj-$(CONFIG_BPF_JIT) += bpf_jit_asm.o bpf_jit_comp.o diff --git a/arch/powerpc/platforms/52xx/Makefile b/arch/powerpc/platforms/52xx/Makefile index ff2f86f..f40d48e 100644 --- a/arch/powerpc/platforms/52xx/Makefile +++ b/arch/powerpc/platforms/52xx/Makefile @@ -11,7 +11,7 @@ obj-$(CONFIG_PPC_LITE5200) += lite5200.o obj-$(CONFIG_PPC_MEDIA5200) += media5200.o obj-$(CONFIG_PM) += mpc52xx_sleep.o mpc52xx_pm.o -ifeq ($(CONFIG_PPC_LITE5200),y) +ifdef CONFIG_PPC_LITE5200 obj-$(CONFIG_PM) += lite5200_sleep.o lite5200_pm.o endif diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile index d5f808e..10064a3 100644 --- a/arch/powerpc/platforms/cell/Makefile +++ b/arch/powerpc/platforms/cell/Makefile @@ -10,7 +10,7 @@ obj-$(CONFIG_CBE_CPUFREQ_SPU_GOVERNOR) += cpufreq_spudemand.o obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON) += cbe_powerbutton.o -ifeq ($(CONFIG_SMP),y) +ifdef CONFIG_SMP obj-$(CONFIG_PPC_CELL_NATIVE) += smp.o endif diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile index 13eede6..7e89d5c 100644 --- a/arch/powerpc/platforms/pseries/Makefile +++ b/arch/powerpc/platforms/pseries/Makefile @@ -25,6 +25,6 @@ obj-$(CONFIG_LPARCFG) += lparcfg.o obj-$(CONFIG_IBMVIO) += vio.o obj-$(CONFIG_IBMEBUS) += ibmebus.o -ifeq ($(CONFIG_PPC_PSERIES),y) +ifdef CONFIG_PPC_PSERIES obj-$(CONFIG_SUSPEND) += suspend.o endif diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index ea2f595..f730539 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -48,7 +48,7 @@ obj-$(CONFIG_UCODE_PATCH) += micropatch.o obj-$(CONFIG_PPC_MPC512x) += mpc5xxx_clocks.o obj-$(CONFIG_PPC_MPC52xx) += mpc5xxx_clocks.o -ifeq ($(CONFIG_SUSPEND),y) +ifdef CONFIG_SUSPEND obj-$(CONFIG_6xx) += 6xx-suspend.o endif -- 2.7.4