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From: Nick Desaulniers <ndesaulniers@google.com>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-kbuild@vger.kernel.org, clang-built-linux@googlegroups.com,
	Nick Desaulniers <ndesaulniers@google.com>,
	Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	linux-s390@vger.kernel.org
Subject: [PATCH 2/7] s390: replace cc-option-yn uses with cc-option
Date: Mon, 16 Aug 2021 17:21:04 -0700	[thread overview]
Message-ID: <20210817002109.2736222-3-ndesaulniers@google.com> (raw)
In-Reply-To: <20210817002109.2736222-1-ndesaulniers@google.com>

cc-option-yn can be replaced with cc-option. ie.
Checking for support:
ifeq ($(call cc-option-yn,$(FLAG)),y)
becomes:
ifneq ($(call cc-option,$(FLAG)),)

Checking for lack of support:
ifeq ($(call cc-option-yn,$(FLAG)),n)
becomes:
ifeq ($(call cc-option,$(FLAG)),)

This allows us to pursue removing cc-option-yn.

Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
---
 arch/s390/Makefile | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 17dc4f1ac4fa..a3cf33ad009f 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -70,7 +70,7 @@ cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include
 #
 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
 
-ifeq ($(call cc-option-yn,-mpacked-stack -mbackchain -msoft-float),y)
+ifneq ($(call cc-option,-mpacked-stack -mbackchain -msoft-float),)
 cflags-$(CONFIG_PACK_STACK)  += -mpacked-stack -D__PACK_STACK
 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
 endif
@@ -78,22 +78,22 @@ endif
 KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y)
 KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y)
 
-ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
+ifneq ($(call cc-option,-mstack-size=8192 -mstack-guard=128),)
 cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
-ifneq ($(call cc-option-yn,-mstack-size=8192),y)
+ifeq ($(call cc-option,-mstack-size=8192),)
 cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
 endif
 endif
 
 ifdef CONFIG_WARN_DYNAMIC_STACK
-  ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
+  ifneq ($(call cc-option,-mwarn-dynamicstack),)
     KBUILD_CFLAGS += -mwarn-dynamicstack
     KBUILD_CFLAGS_DECOMPRESSOR += -mwarn-dynamicstack
   endif
 endif
 
 ifdef CONFIG_EXPOLINE
-  ifeq ($(call cc-option-yn,$(CC_FLAGS_MARCH) -mindirect-branch=thunk),y)
+  ifneq ($(call cc-option,$(CC_FLAGS_MARCH) -mindirect-branch=thunk),)
     CC_FLAGS_EXPOLINE := -mindirect-branch=thunk
     CC_FLAGS_EXPOLINE += -mfunction-return=thunk
     CC_FLAGS_EXPOLINE += -mindirect-branch-table
@@ -104,10 +104,10 @@ ifdef CONFIG_EXPOLINE
 endif
 
 ifdef CONFIG_FUNCTION_TRACER
-  ifeq ($(call cc-option-yn,-mfentry -mnop-mcount),n)
+  ifeq ($(call cc-option,-mfentry -mnop-mcount),)
     # make use of hotpatch feature if the compiler supports it
     cc_hotpatch	:= -mhotpatch=0,3
-    ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
+    ifneq ($(call cc-option,$(cc_hotpatch)),)
       CC_FLAGS_FTRACE := $(cc_hotpatch)
       KBUILD_AFLAGS	+= -DCC_USING_HOTPATCH
       KBUILD_CFLAGS	+= -DCC_USING_HOTPATCH
-- 
2.33.0.rc1.237.g0d66db33f3-goog


  parent reply	other threads:[~2021-08-17  0:21 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-17  0:21 [PATCH 0/7] kbuild: remove cc-option-yn Nick Desaulniers
2021-08-17  0:21 ` [PATCH 1/7] MIPS: replace cc-option-yn uses with cc-option Nick Desaulniers
2021-08-17  1:59   ` Nathan Chancellor
2021-08-17  0:21 ` Nick Desaulniers [this message]
2021-08-17  2:03   ` [PATCH 2/7] s390: " Nathan Chancellor
2021-08-23 17:43   ` Heiko Carstens
2021-08-25  4:37     ` Masahiro Yamada
2021-08-17  0:21 ` [PATCH 3/7] powerpc: " Nick Desaulniers
2021-08-17  1:41   ` Nathan Chancellor
2021-08-17  2:31   ` Michael Ellerman
2021-08-19 20:04     ` Masahiro Yamada
2021-08-17  0:21 ` [PATCH 4/7] arc: " Nick Desaulniers
2021-08-17  2:05   ` Nathan Chancellor
2021-08-17 18:07     ` Nick Desaulniers
2021-08-18  1:40       ` Nathan Chancellor
2021-08-25  4:38         ` Masahiro Yamada
2021-08-17  0:21 ` [PATCH 5/7] x86: remove cc-option-yn test for -mtune= Nick Desaulniers
2021-08-17  2:08   ` Nathan Chancellor
2021-08-19 19:54   ` Masahiro Yamada
2021-08-19 22:19   ` Miguel Ojeda
2021-08-25  4:39     ` Masahiro Yamada
2021-08-17  0:21 ` [PATCH 6/7] Makefile: replace cc-option-yn uses with cc-option Nick Desaulniers
2021-08-17  2:09   ` Nathan Chancellor
2021-08-25  4:43   ` Masahiro Yamada
2021-08-25  4:49     ` Masahiro Yamada
2021-08-17  0:21 ` [PATCH 7/7] kbuild: remove cc-option-yn, update Docs Nick Desaulniers
2021-08-17  2:10   ` Nathan Chancellor

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