The patch titled
Subject: init/version.c: remove Version_<LINUX_VERSION_CODE> symbol
has been added to the -mm tree. Its filename is
init-versionc-remove-version_linux_version_code-symbol.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/init-versionc-remove-version_linux_version_code-symbol.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/init-versionc-remove-version_linux_version_code-symbol.patch
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------------------------------------------------------
From: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Subject: init/version.c: remove Version_<LINUX_VERSION_CODE> symbol
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.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/commit/?id=ad68b2f085f5c79e4759ca2d13947b3c885ee831
Link: https://lkml.kernel.org/r/20210120033452.2895170-1-masahiroy@xxxxxxxxxx
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Daniel Guilak <guilak@xxxxxxxxxxxxxxxxxx>
Cc: Lee Revell <rlrevell@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
init/version.c | 8 --------
1 file changed, 8 deletions(-)
--- a/init/version.c~init-versionc-remove-version_linux_version_code-symbol
+++ a/init/version.c
@@ -16,14 +16,6 @@
#include <linux/version.h>
#include <linux/proc_ns.h>
-#ifndef CONFIG_KALLSYMS
-#define version(a) Version_ ## a
-#define version_string(a) version(a)
-
-extern int version_string(LINUX_VERSION_CODE);
-int version_string(LINUX_VERSION_CODE);
-#endif
-
struct uts_namespace init_uts_ns = {
.ns.count = REFCOUNT_INIT(2),
.name = {
_
Patches currently in -mm which might be from masahiroy@xxxxxxxxxx are
init-versionc-remove-version_linux_version_code-symbol.patch
