[PATCH v3 2/3] init: deduplicate cc-can-link.sh invocations

["Thomas Weißschuh" <thomas.weissschuh@linutronix.de>]

The command to invoke scripts/cc-can-link.sh is very long and new usages
are about to be added.

Add a helper variable to make the code easier to read and maintain.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
---
 init/Kconfig            | 4 ++--
 scripts/Kconfig.include | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index cab3ad28ca49e7ac930207c9cde8d431d55dc7af..7b722e714d5c5a0580467914b226dc0700ec0797 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -84,8 +84,8 @@ config RUSTC_LLVM_VERSION
 
 config CC_CAN_LINK
 	bool
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m64-flag)) if 64BIT
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m32-flag))
+	default $(cc_can_link_user,$(m64-flag)) if 64BIT
+	default $(cc_can_link_user,$(m32-flag))
 
 # Fixed in GCC 14, 13.3, 12.4 and 11.5
 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113921
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index 33193ca6e8030e659d6b321acaea1acd42c387a4..d42042b6c9e243b46d1626d892c0c986621ce462 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -65,6 +65,9 @@ cc-option-bit = $(if-success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null,$
 m32-flag := $(cc-option-bit,-m32)
 m64-flag := $(cc-option-bit,-m64)
 
+# Test whether the compiler can link userspace applications
+cc_can_link_user = $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(1))
+
 rustc-version := $(shell,$(srctree)/scripts/rustc-version.sh $(RUSTC))
 rustc-llvm-version := $(shell,$(srctree)/scripts/rustc-llvm-version.sh $(RUSTC))
 

-- 
2.51.0