+ kernel-credc-make-init_groups-static.patch added to -mm tree

+ kernel-credc-make-init_groups-static.patch added to -mm tree

[akpm]

The patch titled
     Subject: kernel/cred.c: make init_groups static
has been added to the -mm tree.  Its filename is
     kernel-credc-make-init_groups-static.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/kernel-credc-make-init_groups-static.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/kernel-credc-make-init_groups-static.patch

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------------------------------------------------------
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Subject: kernel/cred.c: make init_groups static

init_groups is declared in both cred.h and init_task.h, but it is not
actually referenced anywhere outside of cred.c where it is defined.  So
make it static and remove the declarations.

Link: https://lkml.kernel.org/r/20210310220102.2484201-1-linux@rasmusvillemoes.dk
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/cred.h      |    1 -
 include/linux/init_task.h |    1 -
 kernel/cred.c             |    2 +-
 3 files changed, 1 insertion(+), 3 deletions(-)

--- a/include/linux/cred.h~kernel-credc-make-init_groups-static
+++ a/include/linux/cred.h
@@ -53,7 +53,6 @@ do {							\
 		groups_free(group_info);		\
 } while (0)
 
-extern struct group_info init_groups;
 #ifdef CONFIG_MULTIUSER
 extern struct group_info *groups_alloc(int);
 extern void groups_free(struct group_info *);
--- a/include/linux/init_task.h~kernel-credc-make-init_groups-static
+++ a/include/linux/init_task.h
@@ -25,7 +25,6 @@
 extern struct files_struct init_files;
 extern struct fs_struct init_fs;
 extern struct nsproxy init_nsproxy;
-extern struct group_info init_groups;
 extern struct cred init_cred;
 
 #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
--- a/kernel/cred.c~kernel-credc-make-init_groups-static
+++ a/kernel/cred.c
@@ -33,7 +33,7 @@ do {									\
 static struct kmem_cache *cred_jar;
 
 /* init to 2 - one for init_task, one to ensure it is never freed */
-struct group_info init_groups = { .usage = ATOMIC_INIT(2) };
+static struct group_info init_groups = { .usage = ATOMIC_INIT(2) };
 
 /*
  * The initial credentials for the initial task
_

Patches currently in -mm which might be from linux@rasmusvillemoes.dk are

kernel-asyncc-fix-pr_debug-statement.patch
kernel-credc-make-init_groups-static.patch