linux-kernel - [PATCH] kbuild: remove unused cc-fullversion variable

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Date:   Tue, 30 Oct 2018 01:03:54 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-kbuild@...r.kernel.org
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jonathan Corbet <corbet@....net>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: [PATCH] kbuild: remove unused cc-fullversion variable

The last user of cc-fullversion was removed by commit f2910f0e6835
("powerpc: remove old GCC version checks").

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

 Documentation/kbuild/makefiles.txt | 15 ---------------
 scripts/Kbuild.include             |  4 ----
 2 files changed, 19 deletions(-)

diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 7b6a2b2..8da26c6 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -537,21 +537,6 @@ more details, with real examples.
 	The third parameter may be a text as in this example, but it may also
 	be an expanded variable or a macro.
 
-    cc-fullversion
-	cc-fullversion is useful when the exact version of gcc is needed.
-	One typical use-case is when a specific GCC version is broken.
-	cc-fullversion points out a more specific version than cc-version does.
-
-	Example:
-		#arch/powerpc/Makefile
-		$(Q)if test "$(cc-fullversion)" = "040200" ; then \
-			echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
-			false ; \
-		fi
-
-	In this example for a specific GCC version the build will error out
-	explaining to the user why it stops.
-
     cc-cross-prefix
 	cc-cross-prefix is used to check if there exists a $(CC) in path with
 	one of the listed prefixes. The first prefix where there exist a
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index ca21a35..19a63db 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -147,10 +147,6 @@ cc-name = $(shell $(CC) -v 2>&1 | grep -q "clang version" && echo clang || echo
 # cc-version
 cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
 
-# cc-fullversion
-cc-fullversion = $(shell $(CONFIG_SHELL) \
-	$(srctree)/scripts/gcc-version.sh -p $(CC))
-
 # cc-ifversion
 # Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
 cc-ifversion = $(shell [ $(cc-version) $(1) $(2) ] && echo $(3) || echo $(4))
-- 
2.7.4