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@socionext.com>

diff --git a/init/Kconfig b/init/Kconfig
index df5bba2..2e9813d 100644 (file)
--- 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 91f9d87..fed9290 100644 (file)
--- 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