linux-kernel - [PATCH] kbuild: flatten KBUILD

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Date:   Thu, 13 Jul 2023 21:52:28 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     akpm@...ux-foundation.org, masahiroy@...nel.org, nathan@...nel.org,
        ndesaulniers@...gle.com, nicolas@...sle.eu
Cc:     linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: [PATCH] kbuild: flatten KBUILD_CFLAGS

Make it slightly easier to see which compiler options are added and
removed (and not worry about column limit too!).

Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---

 Makefile |   22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

--- a/Makefile
+++ b/Makefile
@@ -555,11 +555,23 @@ LINUXINCLUDE    := \
 		$(USERINCLUDE)
 
 KBUILD_AFLAGS   := -D__ASSEMBLY__ -fno-PIE
-KBUILD_CFLAGS   := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \
-		   -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
-		   -Werror=implicit-function-declaration -Werror=implicit-int \
-		   -Werror=return-type -Wno-format-security -funsigned-char \
-		   -std=gnu11
+
+KBUILD_CFLAGS :=
+KBUILD_CFLAGS += -std=gnu11
+KBUILD_CFLAGS += -fshort-wchar
+KBUILD_CFLAGS += -funsigned-char
+KBUILD_CFLAGS += -fno-common
+KBUILD_CFLAGS += -fno-PIE
+KBUILD_CFLAGS += -fno-strict-aliasing
+KBUILD_CFLAGS += -Wall
+KBUILD_CFLAGS += -Wundef
+KBUILD_CFLAGS += -Werror=implicit-function-declaration
+KBUILD_CFLAGS += -Werror=implicit-int
+KBUILD_CFLAGS += -Werror=return-type
+KBUILD_CFLAGS += -Werror=strict-prototypes
+KBUILD_CFLAGS += -Wno-format-security
+KBUILD_CFLAGS += -Wno-trigraphs
+
 KBUILD_CPPFLAGS := -D__KERNEL__
 KBUILD_RUSTFLAGS := $(rust_common_flags) \
 		    --target=$(objtree)/scripts/target.json \