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From: Masahiro Yamada <>
To: Andrew Morton <>
Cc: Mauro Carvalho Chehab <>,
	Randy Dunlap <>,
	Daniel Guilak <>,
	Lee Revell <>,
	Masahiro Yamada <>,
Subject: [PATCH] init/version.c: remove Version_<LINUX_VERSION_CODE> symbol
Date: Wed, 20 Jan 2021 12:34:52 +0900	[thread overview]
Message-ID: <> (raw)

This code hunk creates a Version_<LINUX_VERSION_CODE> symbol if
CONFIG_KALLSYMS is disabled. For example, building the kernel v5.10
for allnoconfig creates the following symbol:

  $ nm vmlinux | grep Version_
  c116b028 B Version_330240

There is no in-tree user of this symbol.

Commit 197dcffc8ba0 ("init/version.c: define version_string only if
CONFIG_KALLSYMS is not defined") mentions that Version_* is only used
with ksymoops.

However, a commit in the pre-git era [1] had added the statement,
"ksymoops is useless on 2.6.  Please use the Oops in its original format".

That statement existed until commit 4eb9241127a0 ("Documentation:
admin-guide: update bug-hunting.rst") finally removed the stale
ksymoops information.

This symbol is no longer needed.


Signed-off-by: Masahiro Yamada <>

 init/version.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/init/version.c b/init/version.c
index 80d2b7566b39..92afc782b043 100644
--- a/init/version.c
+++ b/init/version.c
@@ -16,14 +16,6 @@
 #include <linux/version.h>
 #include <linux/proc_ns.h>
-#define version(a) Version_ ## a
-#define version_string(a) version(a)
-extern int version_string(LINUX_VERSION_CODE);
-int version_string(LINUX_VERSION_CODE);
 struct uts_namespace init_uts_ns = {
 	.ns.count = REFCOUNT_INIT(2),
 	.name = {

                 reply	other threads:[~2021-01-20  3:38 UTC|newest]

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