linux-kernel - [PATCH 1/7] init/Kconfig: add CONFIG_CC_CAN

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Message-Id: <20190701005845.12475-2-yamada.masahiro@socionext.com>
Date:   Mon,  1 Jul 2019 09:58:39 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-kbuild@...r.kernel.org
Cc:     Sam Ravnborg <sam@...nborg.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Song Liu <songliubraving@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Alexei Starovoitov <ast@...nel.org>, netdev@...r.kernel.org,
        Yonghong Song <yhs@...com>, linux-kernel@...r.kernel.org,
        Martin KaFai Lau <kafai@...com>, bpf@...r.kernel.org,
        Daniel Borkmann <daniel@...earbox.net>
Subject: [PATCH 1/7] init/Kconfig: add CONFIG_CC_CAN_LINK

Currently, scripts/cc-can-link.sh is run just for BPFILTER_UMH, but
defining CC_CAN_LINK will be useful in other places.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

Changes in v4:
 - New patch

Changes in v3: None
Changes in v2: None

 init/Kconfig         | 3 +++
 net/bpfilter/Kconfig | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/init/Kconfig b/init/Kconfig
index df5bba27e3fe..2e9813daa2c1 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -24,6 +24,9 @@ config CLANG_VERSION
 	int
 	default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
 
+config CC_CAN_LINK
+	def_bool $(success,$(srctree)/scripts/cc-can-link.sh $(CC))
+
 config CC_HAS_ASM_GOTO
 	def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
 
diff --git a/net/bpfilter/Kconfig b/net/bpfilter/Kconfig
index 91f9d878165e..fed9290e3b41 100644
--- a/net/bpfilter/Kconfig
+++ b/net/bpfilter/Kconfig
@@ -9,7 +9,7 @@ menuconfig BPFILTER
 if BPFILTER
 config BPFILTER_UMH
 	tristate "bpfilter kernel module with user mode helper"
-	depends on $(success,$(srctree)/scripts/cc-can-link.sh $(CC))
+	depends on CC_CAN_LINK
 	default m
 	help
 	  This builds bpfilter kernel module with embedded user mode helper
-- 
2.17.1